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EK-4MAXI-OP-A01

April 1993

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Document:	Personal DECstation 5000 Model 50 Operator's Guide
Order Number:	EK-4MAXI-OP
Revision:	A01
Pages:	196
Original Filename:

OCR Text

Personal DECstation 5000 Model 50
Operator’s Guide
Order Number: EK–4MAXI–OP. A01

Digital Equipment Corporation
Maynard, Massachusetts

First Printing, April 1993
The information in this document is subject to change without notice and should not be
construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation
assumes no responsibility for any errors that may appear in this document.
The software described in this document is furnished under a license and may be used or copied
only in accordance with the terms of such license.
All rights reserved. Printed in U.S.A.
© Digital Equipment Corporation 1993.
The postpaid Reader’s Comments forms at the end of this document request your critical
evaluation to assist in preparing future documentation.
The following are trademarks of Digital Equipment Corporation: DEC, DECconnect, DECnet,
DECstation, DECsystem, DECUS, DESTA, ThinWire, TURBOchannel, ULTRIX, ULTRIX-32, and
the DIGITAL logo.
Motif is a trademark of the Open Software Foundation, Inc. MS–DOS is a registered trademark
of Microsoft Corporation. PostScript is a registered trademark of Adobe Systems, Inc. Velcro is
a trademark of Velcro USA, Inc.
All other trademarks and registered trademarks are the property of their respective holders.
FCC NOTICE: This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is operated in
a commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential area
is likely to cause harmful interference, in which case the user will be required to correct the
interference at his own expense.

This document is available on CD–ROM.

S2081

This document was prepared using VAX DOCUMENT, Version 2.1.

Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

xiii

Part I Introducing Your Workstation
1 The Five Basic Parts
1.1
1.1.1
1.1.2
1.1.3
1.2
1.3
1.4
1.5

The System Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Front of the System Unit . . . . . . . . . . . . . . . . . . . . . . . .
The Back of the System Unit . . . . . . . . . . . . . . . . . . . . . . . . .
Icons on the System Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Mouse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Power Cord and Monitor Cable . . . . . . . . . . . . . .

1–2
1–3
1–4
1–4
1–5
1–9
1–12
1–13

2 The Environment
2.1
2.1.1
2.1.2
2.1.3
2.2

Site Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature and Humidity . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleanliness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–1
2–1
2–2
2–2
2–2

3 Starting and Testing
3.1
3.2
3.3
3.4
3.5
3.6
3.7

Turning On Your Workstation . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Power-Up Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the System Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Your Workstation Configuration . . . . . . . . . . . . . . . . . .
Booting Factory-Installed Software . . . . . . . . . . . . . . . . . . . . . . .
Installing Workstation Software . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Workstation Software . . . . . . . . . . . . . . . . . . . . . . . . .

3–1
3–2
3–2
3–3
3–4
3–5
3–5

iii

3.8

Turning Off Your Workstation . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–5

4 Moving Your Workstation
4.1
4.2

Dismantling Your Workstation . . . . . . . . . . . . . . . . . . . . . . . . . . .
Packing Your Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4–1
4–2

Part II External Additions to Your Workstation
5 Connecting to a Network
5.1
5.2
5.2.1
5.2.2
5.2.3
5.3

If Your Workstation Is Not Part of a Network . . . . . . . . . . . . . . .
Connecting Your Workstation to a Network . . . . . . . . . . . . . . . . .
Connecting to a ThickWire Network . . . . . . . . . . . . . . . . . . .
Connecting to a ThinWire Network . . . . . . . . . . . . . . . . . . . .
Connecting to a Twisted-Pair Network . . . . . . . . . . . . . . . . . .
Finding Your Ethernet Address . . . . . . . . . . . . . . . . . . . . . . . . . .

5–2
5–3
5–4
5–6
5–10
5–15

6 External Storage Devices
6.1
6.2
6.3
6.3.1
6.3.2
6.3.3
6.4
6.5
6.6

Storage Devices You Can Add to Your Workstation . . . . . . . . . . .
Guidelines for Connecting SCSI Storage Devices . . . . . . . . . . . . .
Verifying the SCSI ID Settings . . . . . . . . . . . . . . . . . . . . . . . . . .
Factory-Assigned SCSI IDs . . . . . . . . . . . . . . . . . . . . . . . . . .
Verifying SCSI IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing SCSI IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting an Expansion Box to the System Unit . . . . . . . . . . . .
Linking Storage Devices Together . . . . . . . . . . . . . . . . . . . . . . . .
Testing an Expansion Box Installation . . . . . . . . . . . . . . . . . . . . .

6–1
6–3
6–4
6–4
6–4
6–6
6–6
6–8
6–12

7 Communication Devices
7.1
7.1.1
7.1.2

Connecting Communication Devices . . . . . . . . . . . . . . . . . . . . . . .
Connecting with a 25-Pin Connector . . . . . . . . . . . . . . . . . . .
Connecting with a Telephone-Jack Type of Connector
(MMJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7–1
7–2
7–3

8 The Server Configuration
8.1
8.2
8.2.1
8.2.2

Connecting a Console Terminal . . . . . . . . . . . . . . . . . . . . . . . . . .
Halting a Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Default Settings for Using the Console Terminal . . . . . . . . . .
Operational Background Information . . . . . . . . . . . . . . . . . . .

8–3
8–3
8–4
8–4

Part III Internal Additions to Your Workstation
9 Opening and Closing the System Unit
9.1
9.2
9.3

Opening the System Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Antistatic Wrist Strap . . . . . . . . . . . . . . . . . . . . . . . . .
Closing the System Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9–1
9–3
9–4

10 Internal Storage Devices
10.1
Disk Drives That Digital Supports . . . . . . . . . . . . . . . . . . . . . . . .
10.2
Installing a Floppy Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.2.1
To Check the Drive Select Number . . . . . . . . . . . . . . . . . . . .
10.2.2
To Install the Floppy Drive . . . . . . . . . . . . . . . . . . . . . . . . . .
10.3
Testing a Floppy Disk Drive Installation . . . . . . . . . . . . . . . . . . .
10.4
Removing a Floppy Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.5
Setting the Hard Disk Drive SCSI IDs . . . . . . . . . . . . . . . . . . . .
10.5.0.1
RZ23L Hard Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . .
10.5.0.2
RZ24L Hard Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . .
10.5.0.3
RZ25 Hard Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.5.0.4
RZ26 Hard Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.6
Installing a Hard Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.7
Testing a Hard Disk Drive Installation . . . . . . . . . . . . . . . . . . . .
10.8
Removing a Hard Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10–1
10–2
10–2
10–2
10–6
10–7
10–9
10–10
10–11
10–12
10–15
10–16
10–19
10–20

11 Memory Modules
11.1
11.2
11.3
11.4

Identifying Memory Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding Memory to Your Workstation . . . . . . . . . . . . . . . . . . . . . .
Testing the Memory Module Installation . . . . . . . . . . . . . . . . . . .
Removing Memory from Your Workstation . . . . . . . . . . . . . . . . . .

11–1
11–5
11–7
11–8

12 CPU Modules
12.1
12.2
12.3

Removing a CPU Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing a CPU Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Testing Your CPU Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12–1
12–4
12–8

Part IV Workstation Management
13 Using the Console Program
13.1
Operating and Console Modes . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.2
Entering Console Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.3
Console Command Conventions and Terms . . . . . . . . . . . . . . . . .
13.3.1
Conventions Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.3.2
Definition of Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4
Summary of Console Commands . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.1
? Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.2
boot Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.3
cat Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.4
cnfg Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.5
d Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.6
erl Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.7
go Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.8
init Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.9
ls Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.10
passwd Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.11
printenv Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.12
restart Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.13
script Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.14
setenv Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.15
sh Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.16
t Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.17
test Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.4.18
unsetenv Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13–1
13–2
13–3
13–4
13–4
13–6
13–7
13–7
13–9
13–9
13–12
13–12
13–13
13–13
13–13
13–14
13–14
13–15
13–15
13–15
13–17
13–18
13–18
13–18

14 Troubleshooting
14.1
14.2
14.3
14.4

Troubleshooting Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Invoking the Power-up Self-Test . . . . . . . . . . . . . . . . . . . . . . . . .
Interpreting Video Error Messages . . . . . . . . . . . . . . . . . . . . . . .
Minimum Configuration Troubleshooting with the System
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14–1
14–2
14–3
14–5

Understanding the Power-up Self-Test Sequence and the LED
Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14.5.1
The Power-up Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14.5.2
When the Power-up LED Indicator Is Inactive . . . . . . . . . . .

14.5

14–6
14–7
14–10

Part V Appendixes
A Regulatory Information for the UK
A.1
A.2
A.3
A.4
A.5
A.6

Service Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Approvals for Digital Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . .
Host Independent Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Host Power Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Apparatus Between the Approved Apparatus and a Digital
Circuit (PTT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–2
A–2
A–4
A–5
A–5
A–5

B The Audio I/O Port and Multimedia
C Equipment Specifications
C.1
C.2
C.3
C.4
C.5
C.6

Personal DECstation 5000 System Unit . . . . . . . . . . . . . . . . . . . .
RZ23L Hard Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RZ24L Hard Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RZ25 Hard Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RZ26 Hard Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RX26 Diskette Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C–2
C–3
C–5
C–6
C–7
C–9

D Connector Pin Assignments
D.1
D.2
D.3
D.4
D.5
D.6
D.7
D.8

SCSI Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ThickWire Ethernet Connector . . . . . . . . . . . . . . . . . . . . . . . . . . .
EIA RS232 Communications Connectors . . . . . . . . . . . . . . . . . . .
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ISDN Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ACCESS.bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sound Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loopback Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D–1
D–3
D–4
D–5
D–6
D–6
D–7
D–7

vii

E Drives You Can Connect to Your Workstation
Index
Figures
1–1
1–2
1–3
1–4
1–5
1–6
1–7
1–8
1–9
1–10
1–11
1–12
1–13
1–14
1–15
2–1
5–1
5–2
5–3
5–4
5–5
5–6
5–7
5–8
5–9
5–10

viii

The System Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Front of the System Unit . . . . . . . . . . . . . . . . . . . . . . . .
The Back of the System Unit . . . . . . . . . . . . . . . . . . . . . . . . .
Icons on the Back of the System Unit . . . . . . . . . . . . . . . . . .
Connecting the Video Cable to the VRC16 Monitor . . . . . . . .
Connecting the Video Cable to the VRM17 Monitor . . . . . . . .
Connecting the Monitor Cable to the Video Connector on the
Back of the System Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LK501 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tilting the Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Keyboard Cable to the Workstation . . . . . . . .
Connectors on the LK501 Keyboard . . . . . . . . . . . . . . . . . . . .
Mouse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Mouse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cable and Power Cord . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Loopback Connector . . . . . . . . . . . . . . . . . . .
Unlocking the Sliding Lock on the System Unit Ethernet
Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Locking the Sliding Lock on the System Unit Ethernet
Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ThickWire Ethernet cable . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the ThickWire Ethernet Cable to the System
Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Used to Connect a ThinWire Network . . . . . . . . . . . . .
Connecting a ThickWire cable to the ThinWire Adapter . . . .
Attaching a T-connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Attaching a T-connector Terminator . . . . . . . . . . . . . . . . . . . .
ThickWire Ethernet Cable . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–2
1–3
1–4
1–5
1–6
1–6
1–7
1–8
1–9
1–10
1–11
1–11
1–12
1–13
1–14
2–3
5–2
5–3
5–4
5–5
5–6
5–7
5–8
5–9
5–10
5–11

5–11
5–12
5–13
5–14
6–1
6–2
6–3
6–4
6–5
6–6
7–1
7–2
7–3
7–4
8–1
9–1
9–2
10–1
10–2
10–3
10–4
10–5
10–6
10–7
10–8
10–9
10–10
10–11
10–12

Connecting the ThickWire Ethernet Cable to the System
Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts for Connecting to a Twisted-Pair Ethernet Network . . .
Connecting the Adapter to the ThickWire Cable . . . . . . . . . .
Connecting the Twisted-Pair Cable to the Adapter . . . . . . . .
SCSI Connector on the System Unit . . . . . . . . . . . . . . . . . . .
Attaching a System-Unit-to-Expansion-Box Cable to the
SCSI Connector on the System Unit . . . . . . . . . . . . . . . . . . .
Attaching a System-Unit-to-Expansion-Box Cable to a
Typical Expansion Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting Expansion Boxes in a Chain . . . . . . . . . . . . . . . .
Terminating the Final Expansion Box . . . . . . . . . . . . . . . . . .
Connecting a Power Cord to an Expansion Box . . . . . . . . . . .
Connectors and Adapter for Communication Devices . . . . . . .
Connecting a 25-pin Connector . . . . . . . . . . . . . . . . . . . . . . .
A Communications Connector Adapter . . . . . . . . . . . . . . . . .
Using an Adapter to Connect a Communications Device to
the System Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing a Console Terminal . . . . . . . . . . . . . . . . . . . . . . . .
Removing the System Unit Cover . . . . . . . . . . . . . . . . . . . . .
Attaching the Antistatic Wrist Strap . . . . . . . . . . . . . . . . . . .
Checking the Drive Select Number on a Floppy Disk
Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Floppy Disk Drive and Mounting Bracket . . . . . . . . . . . . . . .
Connecting the FDI Cable and the Internal Drive Power
Cable to the Floppy Disk Drive . . . . . . . . . . . . . . . . . . . . . . .
Installing the Floppy Disk Drive in the System Unit . . . . . . .
Connecting the FDI Cable and the Internal Drive Power
Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing a Floppy Disk Drive . . . . . . . . . . . . . . . . . . . . . . . .
SCSI ID Jumper Settings for the RZ23L Hard Disk Drive . .
SCSI ID Jumper Settings for the RZ24L Hard Disk Drive . .
SCSI ID Settings Using the Pins on the Side of the RZ25
Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCSI ID Jumper Settings Using the Pins on the Front of the
RZ25 Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCSI ID Jumper Settings for the RZ26 Hard Disk Drive . . . .
Hard Disk Drive and Mounting Bracket . . . . . . . . . . . . . . . .

5–11
5–12
5–13
5–14
6–2
6–7
6–8
6–9
6–10
6–11
7–1
7–2
7–3
7–4
8–2
9–2
9–3
10–2
10–3
10–4
10–5
10–6
10–8
10–10
10–11
10–13
10–14
10–15
10–16

10–13
10–14
10–15
10–16
11–1
11–2
11–3
11–4
11–5
11–6
11–7
12–1
12–2
12–3
12–4
12–5
12–6
12–7
14–1
A–1

Connecting the SCSI Cable and the Internal Drive Power
Cable to the Hard Disk Drive . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Hard Disk Drive in the System Unit . . . . . . . .
Connecting the SCSI Cable and the Internal Drive Power
Cable to the Base System Module . . . . . . . . . . . . . . . . . . . . .
Removing a Hard Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . .
Identifying 2-MB Memory Modules . . . . . . . . . . . . . . . . . . . .
Identifying 8-MB Memory Modules . . . . . . . . . . . . . . . . . . . .
Memory Module Connectors . . . . . . . . . . . . . . . . . . . . . . . . . .
Inserting a Memory Module . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing a Memory Module . . . . . . . . . . . . . . . . . . . . . . . . .
Releasing the Latches on a Slot Connector . . . . . . . . . . . . . .
Removing a Memory Module . . . . . . . . . . . . . . . . . . . . . . . . .
The CPU and its Mounting Posts . . . . . . . . . . . . . . . . . . . . . .
Releasing the Lock on a Mounting Post . . . . . . . . . . . . . . . . .
CPU Module and Base Module Connector . . . . . . . . . . . . . . .
R4000 CPU Module Switch Packet Settings . . . . . . . . . . . . .
Attaching the CPU Module . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Nameplate Medallion . . . . . . . . . . . . . . . . . . .
Attaching the Product Conversion Label . . . . . . . . . . . . . . . .
Flash Sequence of the Diagnostic LED Indicator . . . . . . . . . .
System Module J-Connector Locations . . . . . . . . . . . . . . . . . .

10–17
10–18
10–19
10–21
11–3
11–4
11–6
11–6
11–7
11–9
11–9
12–2
12–3
12–4
12–5
12–6
12–7
12–8
14–8
A–6

Tables
1
6–1
8–1
11–1
11–2
13–1
13–2
13–3
13–4
14–1
14–2
14–3

Conventions Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Commonly Preassigned SCSI IDs . . . . . . . . . . . . . . . . . . . . .
Alternate Terminal Settings . . . . . . . . . . . . . . . . . . . . . . . . . .
Identifying Memory Modules . . . . . . . . . . . . . . . . . . . . . . . . .
Memory Module Configurations . . . . . . . . . . . . . . . . . . . . . . .
Console Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Module Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCSI Device Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Environment Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Tests for Base System . . . . . . . . . . . . . . . . . . . . . .
Identification Codes for Selected TURBOchannel Options . . .
Interpreting Diagnostic LED Indicator at Power-Up . . . . . . .

xiii
6–4
8–3
11–2
11–5
13–6
13–11
13–11
13–16
14–4
14–4
14–9

14–4
14–5

A–1
A–2
A–3
B–1
B–2
C–1
C–2
C–3
C–4
C–5
C–6
C–7
C–8
C–9
C–10
C–11
C–12
C–13
C–14
C–15
C–16
C–17
C–18
C–19
D–1
D–2
D–3
D–4
D–5
D–6
D–7

Interpreting Diagnostic LED Indicator During First 30
Seconds After Power-Up (Firmware Initialization Period) . . .
Interpreting Diagnostic LED Indicator During Second
30 Seconds Following First Video (Power-Up Self-Test
Period) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PMBA-AA Service Requirements . . . . . . . . . . . . . . . . . . . . . .
Clearance and Creepage Specs for PMBA-AA . . . . . . . . . . . .
Module Power Rating for PMBA-AA . . . . . . . . . . . . . . . . . . .
XMedia (Software) Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DECmedia (Hardware) Kits . . . . . . . . . . . . . . . . . . . . . . . . . .
System Unit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Unit Operating Conditions . . . . . . . . . . . . . . . . . . . .
System Unit Nonoperating Conditions . . . . . . . . . . . . . . . . . .
Acoustics—Preliminary Declared Values per ISO 9296 and
ISO 7779 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RZ23L Hard Disk Drive Description . . . . . . . . . . . . . . . . . . .
RZ23L Hard Disk Drive Operating Conditions . . . . . . . . . . .
RZ23L Hard Disk Drive Nonoperating Conditions . . . . . . . . .
RZ24L Hard Disk Drive Description . . . . . . . . . . . . . . . . . . .
RZ24L Hard Disk Drive Operating Conditions . . . . . . . . . . .
RZ24L Hard Disk Drive Nonoperating Conditions . . . . . . . . .
RZ25 Hard Disk Drive Description . . . . . . . . . . . . . . . . . . . .
RZ25 Hard Disk Drive Operating Conditions . . . . . . . . . . . . .
RZ25 Hard Disk Drive Nonoperating Conditions . . . . . . . . . .
RZ26 Hard Disk Drive Specifications . . . . . . . . . . . . . . . . . . .
RZ26 Hard Disk Drive Operating Conditions . . . . . . . . . . . . .
RZ26 Hard Disk Drive Nonoperating Conditions . . . . . . . . . .
RX26 Diskette Drive Specifications (formatted) . . . . . . . . . . .
RX26 Diskette Drive Operating Conditions . . . . . . . . . . . . . .
RX26 Diskette Drive Nonoperating Conditions . . . . . . . . . . .
SCSI Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . .
ThickWire Ethernet Connector Pin Assignments . . . . . . . . . .
EIA RS232 Communications Connectors Pin Assignments . . .
Power Supply Pin Assignments . . . . . . . . . . . . . . . . . . . . . . .
ISDN Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ACCESS.bus Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . .
Sound Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14–9

14–10
A–2
A–4
A–5
B–2
B–3
C–2
C–2
C–3
C–3
C–3
C–4
C–4
C–5
C–5
C–6
C–6
C–7
C–7
C–7
C–8
C–8
C–9
C–10
C–10
D–1
D–3
D–4
D–5
D–6
D–7
D–7

D–8
D–9
D–10

xii

Summary of Loopback Connectors . . . . . . . . . . . . . . . . . . . . .
Ethernet Loopback Connector Pin Assignments . . . . . . . . . . .
Modem Loopback Connector Pin Assignments . . . . . . . . . . . .

D–7
D–8
D–8

Preface
This guide explains how to operate the hardware components of your Personal
DECstation 5000 Model 50 workstation.
Table 1 Conventions Used
Convention

Use

Boldface type

Indicates a command that you type.

Caution note

Information that protects the workstation from being damaged
is set off in a caution note.

italic type

Indicates variables and complete titles of manuals.

Monospace type

Indicates type that appears on your monitor.

xiii

Part I
Introducing Your Workstation

1
The Five Basic Parts
This chapter describes the following topics:
•

The System Unit

•

Connecting the Monitor

•

Connecting the Keyboard

•

Connecting the Mouse

•

Connecting the Power Cord and Monitor Cable

The Personal DECstation 5000 Model 50 is a desktop workstation that can
be configured in many different ways. Certain basic parts–the system unit, a
monitor, a keyboard, a pointing device–will always be present1 The type and
number of other parts–such as memory modules and internal and external
storage devices–will vary.
A basic system has 8 megabytes of memory and may include an internal
hard disk drive and an internal floppy disk drive. There are two slots for
TURBOchannel option modules. Later chapters of this guide explain how you
can expand both the workstation’s storage capacity and its memory.

When used as a server, the Personal DECstation is usually configured without a
graphics monitor and its corresponding LK501 keyboard, as explained in Chapter 8.

The Five Basic Parts 1–1

1.1 The System Unit

1.1 The System Unit
Figure 1–1 The System Unit

WSMXS103
.

The system unit is designed to sit flat on a level surface with the monitor on
top of or next to it.
Caution
Do not stand the system unit on its side. This can block the cooling
vents and damage the unit.

1–2 The Five Basic Parts

1.1 The System Unit

1.1.1 The Front of the System Unit
The front of the system unit has a green indicator light (LED). When you turn
on your workstation, the light flickers for a while as the system performs its
self-tests and then glows steadily once the system is up and running.
Figure 1–2 The Front of the System Unit

Power-up
indicator light

WSMXS005
.

The Five Basic Parts 1–3

1.1 The System Unit

1.1.2 The Back of the System Unit
On the back of the system unit you will find:
•

The On/Off switch. Press the | on the switch to turn the power on. Press
the O on the switch to turn the power off.

•

The connectors shown in Figure 1–3.

Figure 1–3 The Back of the System Unit
2
1

4
5
6
11

7
10

1. Turbochannel option slot 0
2. Turbochannel option slot 1
3. On/off switch
4. System unit power connector
5. Monitor-to-system-unit power connector
6. Graphics video connector

7. Serial communications connector
8. Keyboard-mouse connector
9. Sound connector
10. Base system ThickWire Ethernet
connector
11. Base system SCSI connector

WSMXS004
.

1.1.3 Icons on the System Unit
Above each connector is a small picture, or icon, that describes the purpose of
that connector. Figure 1–4 shows the icons found on the back of the system
unit.

1–4 The Five Basic Parts

1.1 The System Unit

Figure 1–4 Icons on the Back of the System Unit

Ethernet

Communications

Keyboard

Reset button

Mouse

SCSI
WSE2O003

1.2 Connecting the Monitor
Digital supports two monitors for the base video on the Personal DECstation:
•

16-inch color monitor (VRC16)

•

17-inch gray-scale monitor (VRM17)

Both of these monitors connect to the video connector on the back of the
system unit. They are 1024 x 768 pixels and have a 72-MHz refresh rate. The
identification plate on the back of the monitor tells you which kind of monitor
you have.
With the appropriate graphics board, any Digital monitor will work on the
Personal DECstation.
Follow these steps to connect your monitor:
1. Connect the monitor video cable to the monitor, as shown in Figures 1–5
and 1–6.
2. The video cable for a color monitor divides into three cables at the end.
Match the colors of the cables (or the letters on the cables) with the letters
on the first three of the five video connectors on the monitor: The red cable
plugs into the connector labeled R, the green cable plugs into the connector
labeled G/S, and the blue cable plugs into the connector labeled B.

The Five Basic Parts 1–5

1.2 Connecting the Monitor

Figure 1–5 Connecting the Video Cable to the VRC16 Monitor

B
G
R

WSMXS007
.

Figure 1–6 Connecting the Video Cable to the VRM17 Monitor

WSMXS013

1–6 The Five Basic Parts

1.2 Connecting the Monitor

3. Connect the other end of the monitor video cable to the video connector on
the back of the system unit (Figure 1–7).
Figure 1–7 Connecting the Monitor Cable to the Video Connector on the
Back of the System Unit

WSMXS014
.

4. Find the monitor power cable. Plug the cable into the power connector
on the monitor and into the outlet to the left of the main power outlet on
the back of the system unit. This connects the monitor to the system unit
power supply. Leave the monitor power switch in the on position; when
you turn on the power to the system unit, the monitor will go on, too.
5. You can order an additional power cord and connect your monitor to a
power strip or wall outlet instead of to the system unit. In this case, you
will need to use the monitor’s power switch to turn it on.

The Five Basic Parts 1–7

1.2 Connecting the Monitor

Figure 1–8 Connecting the Monitor

WSMXS038
.

If you want to connect your monitor at a distance from your system unit,
you may need longer cords and cables than the ones that come with the
workstation. You can order the following cables from Digital:
•

10-foot color video cable (customer order #BC29G-09)

•

10-foot gray-scale cable (customer order #BC09M-10)

1–8 The Five Basic Parts

1.2 Connecting the Monitor

Connecting the Monitor to a TURBOchannel Connector
You can connect the following Digital monitors to your workstation by means of
an optional TURBOchannel graphics module installed in your system unit:
•

VRT16

•

VRT19

•

VR319

•

VR320

The TURBOchannel Options User’s Guide tells how to install, test, and
troubleshoot monitors connected to a TURBOchannel option module.

1.3 Connecting the Keyboard
The LK501 keyboard comes with your workstation. One set of keys works
just like the keys on a typewriter keyboard. The keyboard also includes some
special keys: function keys, an editing keypad, and a numeric/application
keypad. Your software manuals explain how to use these special keys.
Figure 1–9 LK501 Keyboard

Indicator lights

Function keys

Main keys

Special editing keypad

WSMXS009

Keyboard cable

Numeric/application keypad

The Five Basic Parts 1–9

1.3 Connecting the Keyboard

You can use the LK501 keyboard in either of two positions, depending on which
you find more comfortable: flat on your work surface or tilted slightly up.
To tilt the keyboard, move the two legs on the bottom into the upright
position.
Figure 1–10 Tilting the Keyboard

Hinged feet on keyboard

WSMXS010
.

1. Plug either end of the keyboard cable into the keyboard-mouse connector
on the back of the system unit.

1–10 The Five Basic Parts

1.3 Connecting the Keyboard

Figure 1–11 Connecting the Keyboard Cable to the Workstation

WSMXS056
.

2. Plug the other end of the cable into either of the connectors at the rear
edge of the keyboard. (The other connector is for the mouse.)
Figure 1–12 Connectors on the LK501 Keyboard

Connectors

WSMXS097

The Five Basic Parts 1–11

1.3 Connecting the Keyboard

If you want to connect your keyboard so you can use it at a distance from
your system unit, you may need a longer cable than the one that comes
with the workstation. You can order a 12-foot system-to-keyboard cable
(customer order #17-03248-07) from Digital to replace the shorter cable
that comes with the workstation.

1.4 Connecting the Mouse
You use a mouse to move the pointer on the screen.
Figure 1–13 Mouse

WSMXS012
.

Connect the mouse by plugging its cable into either of the connectors at the
rear edge of the keyboard.

1–12 The Five Basic Parts

1.4 Connecting the Mouse

Figure 1–14 Connecting the Mouse

Connectors

WSMXS011

If you are using computer-aided design (CAD) applications with your
workstation, you may want to connect a dial box or a button box as a pointing
device. Connect these to the serial connector on the back of the system unit.

1.5 Connecting the Power Cord and Monitor Cable
The workstation comes with a power cord for the system unit and a power
cable that connects the monitor to the system unit.

The Five Basic Parts 1–13

1.5 Connecting the Power Cord and Monitor Cable

Figure 1–15 Power Cable and Power Cord

Monitor-to-system-unit
power cable

System unit and monitor
power cord

WSMXS099
.

•

Use the power cable to connect the monitor to the power outlet on the back
of the system unit.

•

Use the power cord to connect the system unit to a wall outlet or power
strip.
Caution
Only one device can be connected to the outlet on the back of the
system unit. Do not use power cords to link devices together in a chain.

If your monitor is at a distance from the system unit, you may need to order a
longer power cord from Digital to connect the monitor to a wall outlet or power
strip.

1–14 The Five Basic Parts

2
The Environment
This chapter describes the following topics:
•

Site Requirements

•

Power Requirements

2.1 Site Requirements
To operate at its best, your workstation must be set up in a place that meets
certain requirements.
Caution
Failure to meet these requirements can damage the equipment.

2.1.1 Temperature and Humidity
•

The temperature around the workstation should be between 50° F (10° C)
and 95° F (35° C).
The workstation should be set up away from heaters, photocopiers, and
other sources of heat.
Protect your workstation from direct sunlight.

The Environment 2–1

2.1 Site Requirements

•

Air should flow freely around your workstation to keep heat from building
up and damaging the equipment.
Leave 4 inches (10 centimeters) between system unit vents and other
objects.
Leave 3 inches (7.6 centimeters) between monitor vents and other objects.

•

Relative humidity should be between 10 and 90 percent.

•

Store supplies (such as tape cartridges) within these same temperature and
humidity limits.

2.1.2 Cleanliness
•

Keep your work area as dust-free as possible.

2.1.3 Interference
•

Set up your workstation at least 30 inches (76.2 centimeters) from any
sources of electrical interference, such as other terminals or monitors,
printers, or electric pencil sharpeners.

•

To limit its exposure to static electricity and magnetized objects, set up
your workstation away from busy corridors and other high-traffic areas and
away from filing cabinets and steel beams in walls.

2.2 Power Requirements
•

Reserve an entire circuit for your workstation power source. The fuse for
the circuit must be at least 20 amperes.

•

Be sure your electrical circuit is properly grounded and free from electrical
noise. If possible, connect a surge-protected power strip to the outlet and
plug your workstation power cord into the power strip.

2–2 The Environment

2.2 Power Requirements

Many of the devices you connect to your workstation, including most monitors,
must have voltages that match your power source, which is either 110/120 or
220/240 volts. Devices that require matching voltages have a yellow voltage
label covering the power connector. This label tells you that device’s power
requirements.
Caution
Connecting your equipment to a power source with the wrong voltage
can damage the equipment.

Figure 2–1 Voltage Labels

V 100-120

V 220-240

36-17905-19

V 100-120

V 220-240

36-17905-19

WSE2I021

The Environment 2–3

3
Starting and Testing
This chapter covers the following topics:
•

Turning On Your Workstation

•

Using the Power-Up Self-Test

•

Using the System Self-Test

•

Checking Your Workstation Configuration

•

Booting Factory-Installed Software

•

Installing Workstation Software

•

Using the Workstation Software

•

Turning Off Your Workstation

3.1 Turning On Your Workstation
To turn on your workstation:
1. Press the switch on the back of the system unit on ( | ).
2. If necessary, turn on your monitor.
•

If the monitor gets its power through the system unit, it will go on
when you turn on the system unit.

•

If the monitor is plugged into a wall outlet, press its On/Off switch.

3. As soon as you turn on the system unit, the following things happen:
•

A green indicator light flashes quickly on the front of the system unit.

•

A green indicator light glows on the front of the monitor.

•

The system unit and the monitor run their power-up self-tests.

Starting and Testing 3–1

3.2 Using the Power-Up Self-Test

3.2 Using the Power-Up Self-Test
The power-up self-test verifies that the system is working correctly. It begins
automatically when you turn on your workstation. As the system performs
the test, you see flickering text in the lower-left corner of the screen. This
flickering stops when the self-test is complete. If the test was successful, you
see one of two console prompts on your screen:
•

>> When this prompt is displayed, anyone can enter console commands.

•

R > When this prompt appears, full console use is restricted to users who
know the password.

If you do not know the password, you can use only two console commands: the
boot command (type boot and press Return) and the password command (type
passwd and press Return). If the software has been installed on your hard
disk or another storage drive, and if the boot path is correctly set, the boot
command will start up the workstation software.
If your system fails to turn on, or if the self-test is unsuccessful, see Chapter 14
for instructions.

3.3 Using the System Self-Test
The system self-test checks to see that the system is functioning correctly. It is
a more thorough test than the power-up self-test.
Caution
Before running the system self-test, make sure that your workstation
is either connected to a network or has a loopback connector in the
Ethernet connector on the back panel. Otherwise the Ethernet portion
of the test will fail. See Chapter 5 for more information about Ethernet
connections.

Run the system self-test by following these steps:
1. Turn on your workstation and wait until the power-up self-test is complete.
2. When you see the console prompt (>>), type test and press Return.
3. The system self-test usually takes from 1 to 5 minutes, depending on how
much memory you have in your system. As the system performs the test,
you see flickering text in the lower-left corner of the screen, and a beep
sounds when the system tests the speaker. When the self-test is complete,

3–2 Starting and Testing

3.3 Using the System Self-Test

the flickering stops. If the self-test is successful, the console prompt (>>)
appears on your screen.
If your system fails to turn on, or if the self-test is unsuccessful, see Chapter 14
for instructions.

3.4 Checking Your Workstation Configuration
The configuration test tells you what modules are present in your system unit
and where they are. Run this test to make sure the workstation recognizes
optional memory, TURBOchannel modules, serial bus devices, or disk drives.
To run the configuration test, type cnfg and press Return.
A display similar to this appears:
3: KN04

DEC V1.0a TCF0 (12 MB)
(DV -- d=8)
(Sb: devs = 2)
(FDI: 0)
(enet: 08-00-2b-2f-e8-81)
(SCSI = 7)

The line beginning with the number (in the example, 3:) indicate a
workstation slot: the connectors inside the system unit to which modules
can be attached. The example shows slot 3, which is the base system module
and will always be present.
Note
Listings for slot 0 and slot 1 appear only if you have a TURBOchannel
option module in one or both of these slots. For more information about
TURBOchannel option slot displays, see the TURBOchannel Options
User’s Guide.
Each item following the 3: refers to a feature of the base system module. In
the example, these features are as follows:
(12 MB)
(DV -- d=8)
(Sb: devs = 2)
(FDI: 0)
(enet: 08-00-2b-2f-e8-81)
(SCSI = 7)

The amount of memory installed
The base system video
The keyboard and mouse
The internal floppy disk drive
Your workstation Ethernet address
The ID of the SCSI connector on the
base system module

Starting and Testing 3–3

3.4 Checking Your Workstation Configuration

You can also use the configuration test to see what devices are connected to a
particular slot. To do this, type cnfg and the slot number and press Return.
For example, to see the configuration for slot 3, the base system module, you
would type cnfg 3.
The last lines of the display will look something like this:
DEV PID
VID
REV
SCSI
DEV
______________________________________________
rz2
tz5

RZ25
TZK10

(C)DEC
(C)DEC

DEC
DEC

0400
00AA

DIR
SEQ

Look at the first column headed DEV (device). This column lists the device
code and SCSI ID for each drive your system recognizes. All the SCSI drives
connected to the SCSI connector on the back of the system unit should be listed
here. The sample shows the internal hard disk, with SCSI ID 2, and a tape
drive, with SCSI ID 5.
The column headed PID (product ID) lists the names of the devices—in the
sample, RZ25 and TZK10. Some device names will not appear in this column,
so you should use the DEV column to verify the presence of SCSI drives.
After you turn on your workstation and check its configuration, you can boot
the workstation software.
If your workstation has factory-installed software, a sticker on the back of the
system unit will state: ‘‘If this system contains a hard disk with pre-installed
software, see your Installation Guide before booting the system.’’

3.5 Booting Factory-Installed Software
At the console prompt (>>), type setenv boot ‘‘3/rz2/vmunix -a’’ and press
Return.
Then type boot and press Return.
See the ULTRIX Guide to Starting the Factory-Installed Software System for
further instructions.

3–4 Starting and Testing

3.6 Installing Workstation Software

3.6 Installing Workstation Software
Follow the instructions in the Guide to Installing ULTRIX to install your
workstation software.
Note
You must be running ULTRIX and UWS V4.3A or later. Earlier
versions of ULTRIX do not support the Personal DECstation Model 50.

3.7 Using the Workstation Software
After installing the software, you can start it up in subsequent sessions just by
typing boot at the console prompt and pressing Return.
You will see some ULTRIX start up messages, and then the log-in screen will
appear. This is where you type your user name and your password, if you
have one. Both your user name and password are given to you by your system
manager when you first begin using your workstation.
After entering your user name and password, you can begin using your
workstation software. When you are ready to conclude your session, choose
Quit from the Session menu in your session manager window.

3.8 Turning Off Your Workstation
To turn off your workstation:
1. If the workstation software is running, type shutdown -h now and press
Return.
Note
You must be in ‘‘superuser’’ mode in order to shut down the system.
This requires that you obtain superuser privileges from your system
manager. Enter superuser mode by typing su, pressing Return, and
entering your password.

2. Turn off any devices connected to your workstation, such as printers,
modems, or external hard disks.
3. Turn off the system unit by pressing the O on the On/Off switch on the
back of the system unit.

Starting and Testing 3–5

3.8 Turning Off Your Workstation

4. If necessary, turn off the monitor.
•

If the monitor gets its power through the system unit, it will go off
when you turn off the system unit.

•

If the monitor is plugged into a wall outlet, press O on the On/Off
switch.

3–6 Starting and Testing

4
Moving Your Workstation
This chapter tells you how to disassemble your workstation and pack it for
moving.

4.1 Dismantling Your Workstation
1. If the workstation software is running, type shutdown -h now and press
Return.
2. Turn off any devices connected to your workstation, such as printers,
modems, or expansion boxes.
3. Turn off the system unit by pressing the O on the On/Off switch on the
back of the system unit.
4. If necessary, turn off the monitor.
•

If the monitor gets its power through the system unit, it will go off
when you turn off the system unit.

•

If the monitor is plugged into a wall outlet, press the O on the On/Off
switch.

5. Unplug all power cords from their power sources.
6. Disconnect all external devices, including the monitor and the keyboard,
from the system unit. If two or more disk drives or other devices are
chained together, disconnect them from each other.
7. If the SCSI connector on the back of the system unit contains a terminator,
remove the terminator.
8. Disconnect the mouse from the keyboard.
9. If you are on a network, disconnect the Ethernet cable from the system
unit. Otherwise, remove the loopback connector.

Moving Your Workstation

4–1

4.2 Packing Your Equipment

4.2 Packing Your Equipment
Pack each piece of equipment in the carton it came in. Use any padding that
came in the carton to hold the equipment securely in place.
Be sure to include the following in each carton:
•

Any cables, power cords, and terminators that came with that device

•

Any documentation that came with that device

4–2 Moving Your Workstation

Part II
External Additions to Your Workstation

5
Connecting to a Network
This chapter covers the following topics:
•

If Your Workstation Is Not Part of a Network

•

Connecting Your Workstation to a Network

•

Finding Your Ethernet Address

The Personal DECstation is designed so that you can connect it easily to a
ThickWire, ThinWire, or Twisted-pair Ethernet network. You can also use it as
a stand-alone workstation, not connected to any network.

Connecting to a Network 5–1

5.1 If Your Workstation Is Not Part of a Network
If your workstation is not part of an Ethernet network, you must have a
loopback connector in the Ethernet connector on the back of the system unit to
run the system self-test successfully. The Ethernet part of the system self-test
will fail if your workstation is not connected to a network and has no loopback
connector installed. The loopback connector comes with your workstation.
Connecting the Loopback Connector
1. Hold the loopback connector so that its widest part is on top.
2. Push the loopback connector all the way into the ThickWire Ethernet
connector on the system unit.
Figure 5–1 Connecting the Loopback Connector

WSMXS062
.

5–2 Connecting to a Network

5.2 Connecting Your Workstation to a Network
The Personal DECstation has a ThickWire Ethernet connector on the back
of the system unit. If your workstation is going to be part of a ThickWire
network, use the ThickWire cable to make a direct connection between the
workstation and the network cable that comes from the wall. If you have a
ThinWire or Twisted-pair network, use an adapter to make this connection.
There are sliding locks on the Ethernet connector on the system unit and on
one end of the ThickWire Ethernet cable.
•

To unlock a sliding lock, use a flat-blade screwdriver to slide the lock in the
direction of the small, u-shaped notch (either left or right, depending on
the way the lock is mounted on your system).

Figure 5–2 Unlocking the Sliding Lock on the System Unit Ethernet
Connector

Sliding lock on the base system
ThickWire Ethernet connector

Large notch

Small notch

WSMXS080
.

Connecting to a Network 5–3

•

To lock a sliding lock, use a flat-blade screwdriver to push the protruding
edge of the lock toward the center of the connector until it clicks into
place.

Figure 5–3 Locking the Sliding Lock on the System Unit Ethernet Connector

WSMXS081
.

The procedure you follow to connect your workstation to an Ethernet network
depends on the kind of Ethernet network you have.
•

To connect to a ThickWire network, see Section 5.2.1.

•

To connect to a ThinWire network, see Section 5.2.2.

•

To connect to a Twisted-pair network, see Section 5.2.3.

You can also connect your workstation to additional Ethernet networks,
or to other kinds of networks, by using a TURBOchannel module. See the
TURBOchannel Options User’s Guide for information on how to do this.

5.2.1 Connecting to a ThickWire Network
1. If the workstation software is running, shut it down: Type shutdown -h
now and press Return.
2. Turn off the system unit by pressing the O on the On/Off switch on the
back of the unit.

5–4 Connecting to a Network

3. If a loopback connector is in the ThickWire connector on the system unit,
pull it out.
4. Find the ThickWire Ethernet cable. Note that one end of the cable has a
sliding lock on it and the other does not. Take the end of the cable without
the sliding lock and position it so that its widest part is on top.
Figure 5–4 ThickWire Ethernet cable

Sliding lock on
Thickwire Ethernet connector
WSMXS019
.

5. Push the cable connector all the way into the ThickWire connector on the
system unit.
6. Lock the sliding lock on the system unit connector.

Connecting to a Network 5–5

Figure 5–5 Connecting the ThickWire Ethernet Cable to the System Unit

WSMXS081
.

7. Do not attach the other end of the ThickWire cable at this time. Turn
to Section 5.3. Report your address to your system manager, who will
complete the connection to the network.

5.2.2 Connecting to a ThinWire Network
Connect the PersonalDECstation 5000 Model 50 workstation to the ThinWire
Ethernet network cable using the ThickWire-to-ThinWire adapter, as follows:
1. Follow the instructions in Section 5.2.1 to connect the ThickWire cable to
the system unit.
2. Find the ThickWire-to-ThinWire adapter, the T-connector, and the Tconnector terminator that you ordered for your workstation.

5–6 Connecting to a Network

Figure 5–6 Parts Used to Connect a ThinWire Network
ThinWire Ethernet connector

ThickWire
Ethernet
connector

ThickWire-to-ThinWire adapter

T-connector
terminator

T-connector

T- connector and terminator
WS3PO078

3. Find the connector with the sliding lock on the other end of the ThickWire
Ethernet cable you conneced to the workstation.
Make sure the sliding lock on the cable connector is in the unlocked
position.

Connecting to a Network 5–7

4. Hold the ThickWire-to-ThinWire adapter and the free end of the ThickWire
cable so that the connectors match. Push the ThickWire cable connector
with the sliding lock onto the ThickWire connector on the adapter.
5. Slide the lock on the cable attached to the adapter to the locked position.
Figure 5–7 Connecting a ThickWire cable to the ThinWire Adapter

ThickWire Ethernet cable
WSMXS084
.

5–8 Connecting to a Network

Base system
ThickWire Ethernet
connector

6. Attach the T-connector to the ThinWire Ethernet connector on the adapter.
Figure 5–8 Attaching a T-connector

ThickWire-to-ThinWire
adapter

Press the T-connector into the
adapter and turn the connector
to the right until it slides forward
and locks into place.

To the ThickWire Ethernet
connector on the system unit
WS3PO074

7. If you are connecting the workstation within a network cable segment,
leave both ends of the T-connector free to attach your in-house network
cables.
If you are connecting the workstation at the end of a network cable
segment, attach a T-connector terminator to the open end of the T-connector
on the adapter.

Connecting to a Network 5–9

Figure 5–9 Attaching a T-connector Terminator

ThickWire-to-ThinWire
adapter

Press the T-connector terminator into
the T-connector and turn the terminator
to the right until it slides forward and
locks into place.

T-connector
To the ThickWire Ethernet
connector on the system unit
WS3PO093

8. Put an Ethernet loopback conector on any unused Ethernet connectors in
the TURBOchannel slots.
After you test the workstation, use the config command (see Section 13.4.4) to
find the Ethernet station address of your workstation. Give the address to your
system manager, and ask the manager to complete the network connection.

5.2.3 Connecting to a Twisted-Pair Network
1. If the workstation software is running, shut it down. Type shutdown -h
now and press Return.
2. Turn off the system unit by pressing the O on the On/Off switch on the
back of the unit.
3. If a loopback connector is in the ThickWire connector on the system unit,
pull it out.
4. Find the ThickWire Ethernet cable. Note that one end of the cable has a
sliding lock on it and the other does not. Take the end of the cable without
the sliding lock and position it so that its widest part is on top.

5–10 Connecting to a Network

Figure 5–10 ThickWire Ethernet Cable

Sliding lock on
Thickwire Ethernet connector
WSMXS019
.

5. Push the cable connector all the way into the ThickWire connector on the
system unit.
6. Lock the sliding lock on the system unit connector.
Figure 5–11 Connecting the ThickWire Ethernet Cable to the System Unit

WSMXS081
.

Connecting to a Network 5–11

7. Find the ThickWire-to-twisted-pair adapter and the twisted-pair Ethernet
cable.
Figure 5–12 Parts for Connecting to a Twisted-Pair Ethernet Network

Twisted pair phone-jack
ThickWire Ethernet
connector

Front view

Twisted pair phone-jack
type of connector

Back view

ThickWire-to-twisted-pair adapter
WSMXS040
.

5–12 Connecting to a Network

To Connect the ThickWire-to-Twisted-Pair Adapter
1. If necessary, unlock the sliding lock on the cable connector.
2. Hold the ThickWire cable so that its widest part aligns with the widest
part of the ThickWire connector on the adapter.
3. Push the cable connector and the adapter connector together.
4. Push the sliding lock on the cable connector toward the connectors until it
locks them in place.
Figure 5–13 Connecting the Adapter to the ThickWire Cable

ThickWire-totwisted-pair adapter

ThickWire Ethernet cable
WSMXS086

Base system
ThickWire Ethernet
connector

Connecting to a Network 5–13

5. Find the twisted-pair cable. It has a telephone-jack type of connector and
position the connector on the cable so that the clip is on the bottom.
6. Push the connector into the empty connector on the adapter until you feel
the connector click into place.
Figure 5–14 Connecting the Twisted-Pair Cable to the Adapter

To ThickWire Ethernet
connector on system unit

ThickWire-totwisted-pair adapter

Hold the telephone-jack
type of connector so the
clip is on the bottom.
WSMXS087
.

7. Do not attach the other end of the twisted-pair cable at this time. See
Section 5.3 for instructions on finding your Ethernet station address.
Report this address to your system manager, who will complete the
connection to the network.

5–14 Connecting to a Network

5.3 Finding Your Ethernet Address
To complete the connection to the network, you will need to find your Ethernet
station address.
1. If the workstation software is running, shut it down. Type shutdown -h
now and press Return.
2. When you see the console prompt (>>), type cnfg and press Return.
A display similar to this appears on your screen:
3:

KN04

DEC V1.0a TCF0 (12 MB)
(DV -- d=8)
(Sb: devs = 2)
(FDI: 0)
(enet: 08-00-2b-2f-e8-81)
(SCSI = 7)

3. Look at the leftmost column in the display and find the line that begins
with 3:. The entries that follow the 3: describe the configuration of your
base system.
4. Look at the rightmost column in the display and find the entry that begins
with enet:.
The letters and numbers that follow enet: are the Ethernet station
address for your base system. The address begins with 08-00-2b; the
remaining characters will be unique to your workstation.
5. Give your Ethernet station address to your system manager, who will
complete the network installation.
If you must complete the installation yourself, follow the instructions in
the networking guide for your workstation software.

Connecting to a Network 5–15

6
External Storage Devices
This chapter covers the following topics:
•

Storage Devices You Can Add to Your Workstation

•

Guidelines for Connecting SCSI Storage Devices

•

Verifying the SCSI ID Settings

•

Connecting an Expansion Box to the System Unit

•

Linking Storage Devices Together

•

Testing an Expansion Box Installation

6.1 Storage Devices You Can Add to Your Workstation
A basic Personal DECstation system that includes internal drives will come
with one 426-megabyte internal hard disk drive and one extra density (2.8megabyte) internal floppy disk drive. You can expand your workstation storage
capacity by adding other drives to your system. These can be tabletop drives,
or drives contained within an expansion box. For a list of the drives that can
be connected to your workstation, see Appendix E.
All external storage devices are connected by means of either the SCSI
connector on the back of the system unit or a SCSI connector on a
TURBOchannel option module.

External Storage Devices 6–1

6.1 Storage Devices You Can Add to Your Workstation

Figure 6–1 SCSI Connector on the System Unit

SCSI connector
WSMXS041
.

The system unit also has an internal SCSI connector to which the internal hard
disk drive is connected. (The internal floppy disk drive is not a SCSI device.)
For more information about connecting internal drives, see Chapter 10.

6–2 External Storage Devices

6.2 Guidelines for Connecting SCSI Storage Devices

6.2 Guidelines for Connecting SCSI Storage Devices
For your system to work properly, SCSI storage devices must be connected to
your workstation according to the following guidelines:
•

If no external drives are connected, the SCSI connector on the back of the
system unit must contain a SCSI terminator.

•

A SCSI connector can accommodate up to seven drives, linked together in
a chain. (On your workstation, the internal hard disk counts as the first
drive; you can connect six more external drives to the SCSI connector on
the back of the system unit.)

•

The maximum length of a SCSI bus is 6 m (19.8 ft).

•

Each drive enclosure (such as the SZ12 expansion box) has two connectors,
except for the TURBOchannel extender box, which has only one.

•

The second connector of the last expansion box or tabletop drive enclosure
in the chain must contain the large SCSI terminator which comes with
the drive. The TURBOchannel extender (TCE) box has its own internal
terminator. If you are using the TCE, you must always place it last in the
chain.

•

Each drive in the chain must have a unique SCSI ID. See Section 6.3 for
information about determining and assigning IDs.

•

No more than three external expansion boxes can be connected to the base
SCSI connector on the system unit. (You can connect additional expansion
boxes using a PMAZ-AB TURBOchannel SCSI adapter.)

•

When starting up your system, turn on the devices attached to it first (in
any order) and then turn on the system unit.

If you are connecting a TURBOchannel expansion box (TCE), refer to the
instructions that come with it for additional information.

External Storage Devices 6–3

6.3 Verifying the SCSI ID Settings

6.3 Verifying the SCSI ID Settings
Every SCSI device attached to a given connector must have a unique SCSI ID.
If two or more devices have the same ID, one device will not be recognized in
the system configuration.
SCSI storage drives are usually assigned a SCSI ID number at the factory
where they are made. Certain kinds of drives have certain numbers, and the
numbers are planned in such a way as to make it easy to link different types
of drives together without running into number conflicts.
In some cases, however, a device may have a nonstandard ID, or you may want
to link several of the same kinds of devices together. For these cases, you need
to know how to determine the SCSI IDs of the devices you are using and how
to change these numbers if necessary.

6.3.1 Factory-Assigned SCSI IDs
Table 6–1 shows the SCSI IDs usually preassigned to each kind of drive.
Table 6–1 Commonly Preassigned SCSI IDs
TYPE OF DRIVE

SCSI ID

Internal hard disk drive

Expansion box containing two hard disk
drives

0 and 1

External floppy disk drive

CD–ROM drive

Tape drive

System SCSI connector

Because the internal floppy disk drive used in the Personal DECstation is not
a SCSI drive, it does not have an ID.

6.3.2 Verifying SCSI IDs
To check the IDs of the SCSI devices connected to the base SCSI connector on
the back of your system unit, follow these steps:
1. If the workstation software is running, shut it down: Type shutdown -h
now and press Return.
2. When you see the console prompt (>>), type cnfg 3 and press Return.

6–4 External Storage Devices

6.3 Verifying the SCSI ID Settings

The screen display will list the drives connected to slot 3 of your system,
which is the base system module. The last lines of the display will look
something like this:
DEV PID
VID
REV SCSI DEV
-------------------------------------rz2 RZ25 (C)DEC DEC 0400 DIR
tz5 TZK10 (C)DEC DEC 00AA SEQ
3. Look at the second column, labeled PID (product ID). This column lists the
drives your system recognizes: in the sample, a hard disk (RZ25) and a
tape drive (TZK10). All the SCSI drives connected to the SCSI connector
on the back of the system unit should be listed here.
4. Look at the first column, labeled DEV (device). This column lists the device
code and the SCSI ID for each listed drive. In the sample, the number of
the hard disk is 2, and the number of the tape drive is 5. No two of your
drives can have the same number. If they do, one of the drives will not
appear in this display.
If any of the drives connected to your system do not appear in your
configuration display, or if the information provided for a drive is incorrect,
two or more devices might be set to the same SCSI ID. You must change the
number for one or more of those drives before your system will work properly.

External Storage Devices 6–5

6.3 Verifying the SCSI ID Settings

To check the IDs of SCSI devices connected to a TURBOchannel option
module, type cnfg 0 or cnfg 1 at the console prompt, depending on which
TURBOchannel slot your external drive connects to.

6.3.3 Changing SCSI IDs
All SCSI storage devices have a set of small switches or a row of small pins
and jumpers that are used to set the SCSI ID. You change the ID by flipping
these switches or moving jumper blocks into different positions on the pins.
The switches on the various kinds of storage devices are all slightly different.
For instructions on identifying or changing the SCSI IDs on the RZ23L,
RZ24L, RZ25, and RZ26 hard disk drives, see Section 10.5. For information
about other SCSI devices, refer to the guide that came with the expansion box
that contains the device, and to the documentation that came with the device
itself.

6.4 Connecting an Expansion Box to the System Unit
If you are connecting a TURBOchannel extender box (TCE) to the SCSI
connector, see the guide that comes with the TCE.
To connect other expansion boxes to the SCSI connector, follow these steps:
1. Turn off the system unit.
2. Find the system-unit-to-expansion-box cable, which has a small metal
connector on one end. Hold this connector so that its widest part is on top.
3. Pinch together the sides of the cable connector to open it. Push the cable
connector all the way into the SCSI connector on the system unit.

6–6 External Storage Devices

6.4 Connecting an Expansion Box to the System Unit

Figure 6–2 Attaching a System-Unit-to-Expansion-Box Cable to the SCSI
Connector on the System Unit

SCSI icon
Position the smaller
cable connector
so the widest part
is on top.

Base system
SCSI connector
WSMXS091
.

4. Attach the free end of the system-unit-to-expansion-box cable to either of
the SCSI connectors on the back of the expansion box.
a. Press the two wire brackets on the expansion box connector away from
the connector.
b. Hold the cable connector so that its widest part is on top.
c.

Push the cable connector into the expansion box connector as far as it
will go.
If the expansion box is a TK50Z tape drive, slide the cable connector up
between the handle and the back of the box.

d. Press the two wire brackets firmly against the sides of the cable
connector until they click into place.

External Storage Devices 6–7

6.4 Connecting an Expansion Box to the System Unit

Figure 6–3 Attaching a System-Unit-to-Expansion-Box Cable to a Typical
Expansion Box

WSMXS094
.

5. If this is the only expansion box you are connecting, place a terminator on
the unused expansion box SCSI connector. Use the terminator that came
with the expansion box.
Caution
The second connector of the last drive in a chain of SCSI devices must
always contain a SCSI terminator. The TURBOchannel extender box
(TCE) has its own internal terminator. If you are using the TCE, you
must always place it last in the chain.

6. Turn on the expansion box power. Then turn on the system unit.

6.5 Linking Storage Devices Together
You can connect up to three expansion boxes, or a total of six individual drives,
to the base system SCSI connector. Once you have connected one expansion
box or drive, connect others as follows:
1. Plug one end of a box-to-box expansion cable into the unused SCSI
connector on the back of the expansion box that you connected to your
system unit.
2. Plug the other end of the cable into either of the SCSI connectors on the
new box in the chain.

6–8 External Storage Devices

6.5 Linking Storage Devices Together

If the box is a TK50Z tape drive, slide the end of the cable up between the
box and its handle.
3. Repeat steps 1 and 2 for each additional box.
Figure 6–4 Connecting Expansion Boxes in a Chain

1. Gently press the two wire brackets
on the SCSI connector away from
the connector.
2. Hold the connector so the
widest part of the connector
is on top and push it into
the SCSI connector on the
expansion box.

3. Press the two wire brackets
firmly against the side of
the cable connector until
they lock into the groves on
the sides of the connector.

d i g

i t a

RRD42 optical
compact disc drive
expansion box

Wire bracket

d i g

i t a l

TK50Z tape drive
expansion box

SZ12 storage
expansion box

d i g

i t a

Connector
WSMXS092
.

4. On the last box in the chain, connect an expansion box terminator to the
unused SCSI connector. (If you are using a TURBOchannel extender box,
place it last in the chain. It has its own internal terminator.)

External Storage Devices 6–9

6.5 Linking Storage Devices Together

Figure 6–5 Terminating the Final Expansion Box

Hold the terminator so
the widest part of its
connector is on top
and push the terminator
onto the unused SCSI
connector.

Terminator

t a l

d i g

i t a l
d i g

d i g
l

i t a

d i g i

t a l

6–10 External Storage Devices

i t a

d i g

WSMXS093

d i g i

Wire brackets

i t a l

6.5 Linking Storage Devices Together

5. Plug the end of a power cord into the power connector on each expansion
box.
Figure 6–6 Connecting a Power Cord to an Expansion Box

d i g i

t a l

d i g

i t a l

d i g

i t a

i t a
l

WSMXS095
.

6. Plug the other end of each cord into a power outlet.
7. Turn on each expansion box and then the system unit.

External Storage Devices 6–11

6.6 Testing an Expansion Box Installation

6.6 Testing an Expansion Box Installation
To verify a drive attached to the base system SCSI connector, follow these
steps:
1. At the console prompt (>>), type cnfg 3 and press Return.
2. The screen display lists the drives connected to slot 3 of your system, which
is the system module. The last lines of the display will look something like
this:
DEV PID
VID
REV SCSI DEV
--------------------------------------rz2 RZ25 (C)DEC DEC 0400 DIR
tz5 TZK10 (C)DEC DEC 00AA SEQ
3. Look at the first column labeled DEV (device). This column lists the device
code and SCSI ID for each drive your system recognizes. All the SCSI
drives connected to the SCSI connector on the back of the system unit
should be listed here. The sample shows the internal hard disk, with SCSI
ID 2, and a tape drive, with SCSI ID 5.
The column headed PID (product ID) lists the names of the devices—in
the sample, RZ25 and TZK10. Some device names will not appear in this
column. Use the DEV column to verify the presence of SCSI drives.
4. If the drives you have connected are not listed in the configuration display
or if they are listed incorrectly, turn off the system power, open the system
unit, and check to make sure the drives are properly installed.
If you have made sure the drives are properly installed and the
configuration display still does not list them correctly, two or more
devices might be set to the same SCSI ID. You will need to change the
ID for one of these drives before your system will work properly. (See
Section 6.3.3.)

6–12 External Storage Devices

7
Communication Devices
This chapter describes how to connect communication devices.

7.1 Connecting Communication Devices
Communication devices, such as printers, modems, and plotters, connect to
your system unit by means of one of these types of connectors:
•

A 25-pin connector, which attaches directly to the communications
connector on the system unit

•

A telephone-jack type of connector (MMJ, modified modular jack), which
requires an adapter before it can be connected to the system unit

Figure 7–1 Connectors and Adapter for Communication Devices

25-pin
communications
connector
adapter

Telephone-jack
type of
connector

25-pin
communications
connector

WSMXS042

Communication Devices 7–1

7.1 Connecting Communication Devices

7.1.1 Connecting with a 25-Pin Connector
1. Prepare your printer, plotter, or modem according to the instructions that
came with the device:
•

Set the proper baud rate, if necessary, and other controls.

•

Set up the device and attach its cable and power cord.

2. Connect the free end of the device cable to the communications connector
on the back of the system unit:
a. Align the widest part of the cable connector with the widest part of the
connector on the system unit.
b. Press the cable connector all the way into the system unit connector.
Figure 7–2 Connecting a 25-pin Connector

d i
g i
t a
l

Hold the 25-pin cable
connector so the widest part
of the connector is on top.
Turn the screws to your right to
hold the connector in place.
WSMXS043
.

7–2 Communication Devices

7.1 Connecting Communication Devices

7.1.2 Connecting with a Telephone-Jack Type of Connector (MMJ)
1. Find the communications connector adapter that came with your
workstation.
Figure 7–3 A Communications Connector Adapter

WSMXS045

2. Hold the adapter so that the widest part of the 25-pin connector is on top.
3. Press the adapter connector all the way into the communications connector
on the system unit and tighten the screws until they hold the adapter
firmly in place.
4. Hold the connector on your device cable so that the clip is on your left.
5. Push the cable connector into the connector on the adapter until the cable
connector clicks into place.

Communication Devices 7–3

7.1 Connecting Communication Devices

Figure 7–4 Using an Adapter to Connect a Communications Device to the
System Unit

Hold the cable connector
so the clip is to your left.
d i
g i
t a
l

Hold the 25-pin communications
connector adapter so its widest
part is on top.
WSMXS044
.

If your printer, plotter, or modem fails to work, see the troubleshooting
instructions in the documentation that came with the device or ask your
system manager for help.

7–4 Communication Devices

8
The Server Configuration
The Personal DECstation can be configured as either a workstation or a server.
(A server is used to provide other client systems in a network with distributed
services such as filing, computation, and printing.)
When performing distributed network server tasks, the Personal DECstation
has no need for the expensive graphics hardware usually associated with
workstations, so it is configured without a graphics monitor. However, to
maintain a console window, you should connect the Personal DECstation to the
input and output from a VT320-type terminal attached to the RS232 port in
the rear of the system unit.

The Server Configuration 8–1

Figure 8–1 Installing a Console Terminal
Regular system monitor

Alternate
console
terminal

1
0

Alternate
terminal cable
Communications
connector
Communications
line adaptor
LK201 or LK401
keyboard

Alternate
terminal cable

WSMXM074

8–2 The Server Configuration

8.1 Connecting a Console Terminal

8.1 Connecting a Console Terminal
Connect your terminal to the 25-pin RS232 connector, and set your terminal
as described in Table 8–1. You may notice that these settings are the
standard default settings for Digital terminals. Some terminals may use the
modular MMJ telephone style connectors. If this is the case, an adapter (Part
#H8571-A) can be used to make the connection.
Note
Users who have multiple servers may not have a terminal plugged into
each unit. In this type of configuration, the system manager generally
accesses the server via the Ethernet.

Table 8–1 Alternate Terminal Settings
Setting

Value

Baud rate

9600

Bits

Parity

None

Stop bits

Flow control

Xon/Xoff

Mode

Full duplex

Once you have connected the terminal to the RS232 port, you can now use the
messages displayed on the terminal to perform system operations.

8.2 Halting a Server
In general a server does not need to be halted during normal operations: it is
usually shut down from the operations system with the shut -a now command.
However, you may at times wish to abruptly halt the server to examine the
contents of memory during code development and debug.
The Personal DECstation is halted as a server by the same technique that is
used when it is halted as a workstation: namely, plug in an LK501 keyboard
and press Ctrl, Alt, and Return. Digital recommends that developers who
might need to do this also set the console environmental variable to s, as
explained in the next section.

The Server Configuration 8–3

8.2 Halting a Server

Note
The Personal DECstation does not have an explicit Halt switch.

8.2.1 Default Settings for Using the Console Terminal
As an advanced user, you may from time to time wish to alternate back and
forth between use of a graphics monitor and a console terminal. When using
your console terminal, you can defeat the default power-up console assignment
by issuing the following console command:
>>setenv console s
You can switch your console back to your graphics monitor with the command:
>>setenv console *

8.2.2 Operational Background Information
Your system can display console and diagnostic messages, either on the
graphics monitor, or on a VT320-type terminal connected to the RS232 port
located on the rear of the unit.
At power up, the system looks for a keyboard plugged into the ACCESS.bus. If
one is found, the system routes all console messages to the graphics monitor.
If, however, no keyboard is detected on the ACCESS.bus, all text is sent
directly to the RS232 port.
Therefore, if you are using the Personal DECstation as a server and you have
an LK501 keyboard plugged in when the system is powered on, the system
will attempt to display console output on a non-existent graphics monitor. To
prevent this from happening, you should establish your terminal as the default
console device by issuing the setenv console s command, as described in
Section 8.2.1.

8–4 The Server Configuration

Part III
Internal Additions to Your Workstation

9
Opening and Closing the System Unit
This chapter explains the following topics:
•

Opening the System Unit

•

Using the Antistatic Wrist Strap

•

Closing the System Unit

9.1 Opening the System Unit
Occasionally you may need to get inside your system unit–to add optional
modules, for example, or to upgrade your system. To remove the cover from
the system unit, follow these steps:
1. If the workstation software is running, shut it down: Type shutdown -h
now and press Return.
Note
You must be in superuser mode to shut down the system. This requires
that you obtain superuser privileges from your system manager. Access
superuser mode by typing su, pressing Return, and entering your
password.

2. Turn off the system unit by pressing O on the On/Off switch on the back of
the unit.

Opening and Closing the System Unit 9–1

9.1 Opening the System Unit

3. Remove the two cover-release screws on the back edge of the system unit.
Figure 9–1 Removing the System Unit Cover

ISDN

Cover
release
screws

MLO-010262

4. Pivot the cover on the tabs that are along the lower part of the cover’s front
edge.
5. When the tabs are loose in their slots, lift the cover up and away from the
system unit.

9–2 Opening and Closing the System Unit

9.2 Using the Antistatic Wrist Strap

9.2 Using the Antistatic Wrist Strap
Once the cover is off, you will see the base system module and the power
supply. You will also see any internal disk drives in your workstation and any
memory cards and TURBOchannel modules.
The components in the system unit are delicate and can be damaged by the
static electricity conducted by your body. Digital provides an antistatic wrist
strap to ensure that this static discharge does not cause damage. Wear the
antistatic wrist strap whenever you touch anything inside the system unit
or any item stored in an antistatic bag. To use the wrist strap, follow the
directions on the envelope it comes in.
Figure 9–2 Attaching the Antistatic Wrist Strap

MLO-010082

Your system unit may not contain everything shown in Figure 9–2.

Opening and Closing the System Unit 9–3

9.3 Closing the System Unit

9.3 Closing the System Unit
To replace the cover on the system unit, follow these steps:
1. Tilt the cover so that the back is about 6 inches higher than the front.
2. Insert the tabs on the front edge of the cover into the slot along the front
edge of the system unit.
3. Lower the back of the cover into place. Replace and tighten the screws that
hold the cover.

9–4 Opening and Closing the System Unit

10
Internal Storage Devices
This chapter covers the following topics:
•

Disk Drives That Digital Supports

•

Installing a Floppy Disk Drive

•

Testing a Floppy Disk Drive Installation

•

Removing a Floppy Disk Drive

•

Setting the Hard Disk Drive SCSI IDs

•

Installing a Hard Disk Drive

•

Testing a Hard Disk Drive Installation

•

Removing a Hard Disk Drive

10.1 Disk Drives That Digital Supports
You can install several different drives inside your system unit, including:
•

RX26 floppy disk drive (2.8 megabytes)

•

RZ23L hard disk drive (121 megabytes)

•

RZ24L hard disk drive (245 megabytes)

•

RZ25 hard disk drive (426 megabytes)

•

RZ26 hard disk drive (1.05 gigabytes)

The hard disk drives are SCSI devices; the floppy disk drive is not. Digital
will make other drives available from time to time. Please consult your Digital
representative about these devices as they are released.
All disk drives other than these must be connected externally. Chapter 6
describes external storage devices that you can connect to your workstation.
The TURBOchannel Options User’s Guide tells you about SCSI devices you can
connect to the TURBOchannel option slots in the system unit.
Internal Storage Devices 10–1

10.2 Installing a Floppy Disk Drive

10.2 Installing a Floppy Disk Drive
The internal floppy disk drive is not a SCSI drive, but it does have a drive
select number, which should be set at 0. This number is preassigned at the
factory; you will probably not need to change it, but you can, if you wish, check
the number before you install the drive. If the workstation does not seem to
recognize the floppy drive, however, or if the message device off-line appears
on your screen, the floppy drive number may be incorrectly set.

10.2.1 To Check the Drive Select Number
1. Remove the drive from its metal mounting bracket and from its perforated
floppy drive shield.
2. The drive select switch (LUN) is on the right side of the drive (as you face
the front of the drive), toward the rear. Small numbers are printed on the
green surface next to the switch. Check that the switch is set at 0.
Figure 10–1 Checking the Drive Select Number on a Floppy Disk Drive

Identification label

FDI connector
LUN switch

Power connector

WSMXS104
.

10.2.2 To Install the Floppy Drive
1. If the workstation software is running, shut it down: Type shutdown -h
now and press Return.
2. Turn off your system unit by pressing the O on the On/Off switch on the
back of the system unit.

10–2 Internal Storage Devices

10.2 Installing a Floppy Disk Drive

3. Open the system unit. (See Section 9.1.)
Caution
Attach the antistatic wrist strap before you touch anything inside the
system unit. Always use this strap when you work inside the system
unit to avoid damage to internal devices from static discharge.

4. The floppy disk drive comes in a metal mounting bracket. Hold the drive
so that the bracket is on the bottom.
Figure 10–2 Floppy Disk Drive and Mounting Bracket

MLO-010265

5. Connect the FDI cable to the drive.
6. Connect the long end of the internal drive power cable to the drive.

Internal Storage Devices 10–3

10.2 Installing a Floppy Disk Drive

Figure 10–3 Connecting the FDI Cable and the Internal Drive Power Cable to
the Floppy Disk Drive

MLO-010266

7. Stand facing the front of the system unit. The space for the drive is in the
right front corner. Fit the tabs on the right side of the mounting bracket
into the slots in the base of the system unit.

10–4 Internal Storage Devices

10.2 Installing a Floppy Disk Drive

Figure 10–4 Installing the Floppy Disk Drive in the System Unit

MLO-010267

8. Lower the left side of the disk drive assembly so that the hole in the
mounting bracket fits over the post on the base of the system unit. Press
the drive down firmly.
9. Slide the latch beside the post into the locked position.
10. Connect the floppy disk interface (FDI) cable to the FDI connector on the
base system module as shown in Figure 10–5.
11. Connect the internal drive power cable to the drive power connector on the
base system module.
Note
The internal drive power cable serves both the floppy drive and the
hard drive. If you have installed a hard drive, the power cable will
already be connected to the base system module.

Internal Storage Devices 10–5

10.2 Installing a Floppy Disk Drive

Figure 10–5 Connecting the FDI Cable and the Internal Drive Power Cable

MLO-010268

12. Replace the cover of the system unit. (See Section 9.3.)
13. Turn on the system unit by pressing the | on the On/Off switch on the
back of the system unit.

10.3 Testing a Floppy Disk Drive Installation
1. If the workstation software is running, shut it down: Type shutdown -h
now and press Return.
2. When you see the console prompt (>>), type cnfg 3 and press Return.
The display lists the drives connected to slot 3 of your system; this is the slot
number for the base system module. The upper part of the display will look
something like this:
3:KN04

DEC V1.0a TCF0 (12 MB)
(DV -- d=8)
(Sb: devs = 2)
(FDI: 0)
(enet: 08-00-2b-2f-e8-81)
(SCSI = 7)

10–6 Internal Storage Devices

10.3 Testing a Floppy Disk Drive Installation

The characters (FDI:1) tell you that the workstation recognizes the floppy disk
drive. If you see (FDI:0) instead, or if the message device off-line appears
on your screen, either you have no floppy drive installed in your system unit,
or the drive is not installed properly and the workstation does not recognize it.
You will need to open the system unit and check the drive’s installation.

10.4 Removing a Floppy Disk Drive
1. If the workstation software is running, shut it down: Type shutdown -h
now and press Return.
2. Turn off the system unit by pressing the O on the On/Off switch on the
back of the system unit.
3. Open the system unit. (See Section 9.1.) The floppy disk drive is in the
right front corner.
Caution
Attach the antistatic wrist strap before you touch anything inside the
system unit. Always use this strap when you work inside the system
unit to avoid damage to internal devices from static discharge.

4. Disconnect the FDI cable from the drive and from the connector on the
base system module.
5. Disconnect the drive power cable from the drive. Disconnect the power
cable from the drive power connector on the base system module, unless
the cable is also providing power to an internal hard drive.
6. On the left side of the disk assembly, you will see a sliding latch. Slide the
latch backward to unlock it.
7. Raise the left side of the floppy disk assembly off the small post that holds
it.

Internal Storage Devices 10–7

10.4 Removing a Floppy Disk Drive

Figure 10–6 Removing a Floppy Disk Drive

MLO-010269

8. Keep lifting the disk assembly until you can slide the tabs on its right side
out of the slots in the base of the system unit.
9. Replace the cover of the system unit. (See Section 9.3.)

10–8 Internal Storage Devices

10.5 Setting the Hard Disk Drive SCSI IDs

10.5 Setting the Hard Disk Drive SCSI IDs
Before you install a hard disk drive in your system unit, you need to make sure
its SCSI ID is correct. (See Section 6.3 for general information about SCSI
IDs.) The next section gives you instructions for setting the SCSI IDs of the
most commonly used internal hard disk drives.
The internal hard disk drive is usually set to SCSI ID 2. To set the SCSI ID
of the drives, use a row of small pins and jumper blocks. You set the ID by
moving the jumpers to different positions on the pins.
Caution
Each SCSI device attached to a given connector must have a unique
ID. If two or more devices have the same ID, your workstation will not
recognize one or the other of those drives.

Internal Storage Devices 10–9

10.5 Setting the Hard Disk Drive SCSI IDs

10.5.0.1 RZ23L Hard Disk Drive
The SCSI jumpers are on the underside of the RZ23L drive.
Figure 10–7 SCSI ID Jumper Settings for the RZ23L Hard Disk Drive

SCSI ID 0

SCSI ID 3

SCSI ID 1

SCSI ID 4

SCSI ID 2

SCSI ID 5

SCSI ID pins

SCSI ID 6

SCSI connector
Power supply connector
WSMXS060
.

10–10 Internal Storage Devices

10.5 Setting the Hard Disk Drive SCSI IDs

10.5.0.2 RZ24L Hard Disk Drive
The SCSI jumpers are on the underside of the RZ24L drive.
Figure 10–8 SCSI ID Jumper Settings for the RZ24L Hard Disk Drive

A0 A1

SCSI
Address
Settings: 0

4
A0 A1

A0 A1

5
A0 A1

6
A0 A1

A0 A1

3
MLO-010264

Internal Storage Devices 10–11

10.5 Setting the Hard Disk Drive SCSI IDs

10.5.0.3 RZ25 Hard Disk Drive
The RZ25 drive has two sets of pins, one on the side of the drive and one at the
front.
Note
The drive ships with a jumper on pin 4 on the front of the drive. This
jumper does not affect the SCSI ID number of the drive and must
not be removed. If the jumper is removed, the drive will not function
correctly.

A factory-installed drive is set at SCSI ID 2. If you need to change the setting,
you can use either set of pins. To set the ID, do the following:
•

If you use the pins on the side of the drive, remove all jumpers from the
pins on the front of the drive except for the jumper located on pin 4.

•

If you use the pins on the front of the drive, remove all jumpers from the
pins on the side of the drive before setting the ID.

An add-on drive ships set at SCSI ID 7 (all jumpers installed). It is important
to set these jumpers to a different SCSI ID since SCSI ID 7 is assigned to the
system SCSI controller.

10–12 Internal Storage Devices

10.5 Setting the Hard Disk Drive SCSI IDs

Figure 10–9 SCSI ID Settings Using the Pins on the Side of the RZ25 Drive

SCSI ID 3

SCSI ID 0

SCSI ID 4

SCSI ID 1

SCSI ID 5

SCSI ID 2

SCSI ID 6

Side SCSI
ID pins

RZ 25 drive
WSMXS108
.

Internal Storage Devices 10–13

10.5 Setting the Hard Disk Drive SCSI IDs

Figure 10–10 SCSI ID Jumper Settings Using the Pins on the Front of the
RZ25 Drive

SCSI ID 0

SCSI ID 3

SCSI ID 1

SCSI ID 4

SCSI ID 2

SCSI ID 5

SCSI ID 6

Front SCSI ID pins

WSMXS058
.

10–14 Internal Storage Devices

10.5 Setting the Hard Disk Drive SCSI IDs

10.5.0.4 RZ26 Hard Disk Drive
Set the SCSI ID on the RZ26 drive to 2 unless you have another device with
SCSI 2 already attached to the SCSI connector at the back of the system unit.
Figure 10–11 SCSI ID Jumper Settings for the RZ26 Hard Disk Drive

2
0 1

SCSI
Address
Settings: 0

MLO-010258

Internal Storage Devices 10–15

10.6 Installing a Hard Disk Drive

10.6 Installing a Hard Disk Drive
1. If the workstation software is running, shut it down: Type shutdown -h
now and press Return.
2. Turn off the system unit by pressing the O on the On/Off switch on the
back of the system unit.
3. Open the system unit. (See Section 9.1.)
4. The hard disk drive comes in a metal mounting bracket. Hold the drive so
that the bracket is on the bottom.
Figure 10–12 Hard Disk Drive and Mounting Bracket

Power
connector
SCSI
connector
WSMXS050
.

5. Connect the SCSI cable to the drive.
6. Connect one of the short ends of the internal drive power cable to the
drive.

10–16 Internal Storage Devices

10.6 Installing a Hard Disk Drive

Figure 10–13 Connecting the SCSI Cable and the Internal Drive Power Cable
to the Hard Disk Drive

Power cable

SCSI signal cable
WSMXS049
.

7. The space for the hard disk drive is at the front of the system unit, in the
center. Fit the tabs on the left side of the mounting bracket into the slots
in the base of the system unit.

Internal Storage Devices 10–17

10.6 Installing a Hard Disk Drive

Figure 10–14 Installing the Hard Disk Drive in the System Unit

Tabs

Cutouts
Locking post
WSMXS102
.

8. Lower the right side of the disk drive assembly so that the hole in the
mounting bracket fits over the post on the base of the system unit. Press
the drive down firmly.
9. Slide the latch beside the post into locked position.
10. Connect the SCSI cable to the SCSI connector on the base system module.
11. Connect the internal drive power cable to the drive power connector on the
base system module.
Note
The internal drive power cable serves both the floppy drive and the
hard drive. If you have installed a floppy drive, the power cable will
already be connected to the base system module.

10–18 Internal Storage Devices

10.6 Installing a Hard Disk Drive

Figure 10–15 Connecting the SCSI Cable and the Internal Drive Power Cable
to the Base System Module

WSMXS096
.

12. Replace the cover of the system unit.
13. Turn on the system unit by pressing the | on the On/Off switch on the
back of the system unit.

10.7 Testing a Hard Disk Drive Installation
1. If the workstation software is running, shut it down: Type shutdown -h
now and press Return.
2. At the console prompt (>>), type cnfg 3 and press Return.
3. The screen display lists the drives connected to slot 3 of your system; this
is the slot number for the system module. The last lines of the display will
look something like this:
DEV PID
VID
REV SCSI DEV
--------------------------------------rz2 RZ25 (C)DEC DEC 0400 DIR
tz5 TZK10 (C)DEC DEC 00AA SEQ
4. Look at the first column headed DEV (device). This column lists the device
code and SCSI ID for each drive your system recognizes. All the SCSI
drives connected to the SCSI connector on the back of the system unit
should be listed here. The sample shows the internal hard disk with SCSI
ID 2, and a tape drive with SCSI ID 5.
Internal Storage Devices 10–19

10.7 Testing a Hard Disk Drive Installation

5. The column headed PID (product ID) lists the names of the devices—in
the sample, RZ25 and TZK10. Some device names will not appear in this
column. Use the DEV column to verify the presence of SCSI drives.
6. If the drives you have connected are not listed in the configuration display
or if they are listed incorrectly, turn off the system unit, remove the cover,
and check to make sure that the drives are properly installed.
If you have made sure that the drives are properly installed and the
configuration display still does not list them correctly, two or more devices
might be set to the same SCSI ID. You will need to change the ID for one
of these drives for your system to work properly. (See Section 10.5 or refer
to the guide that came with the drive.)

10.8 Removing a Hard Disk Drive
1. Turn off the system unit by pressing the O on the On/Off switch on the
back of the system unit.
2. Open the system unit. (See Section 9.1.) The hard disk drive is at the front
of the unit, in the center.
3. Attach the antistatic wrist strap.
4. Disconnect the SCSI cable from the SCSI connector on the base system
module.
5. Disconnect the power cable from the drive power connector on the base
system module, unless the cable is also providing power to an internal
floppy disk drive.
6. On the right side of the disk assembly, you will see a sliding latch. Slide
the latch backward to unlock it.
7. Raise the right side of the hard disk assembly off the small post that holds
it.
8. Keep lifting the disk assembly until you can slide the tabs on its left side
out of the slots in the base of the system unit.

10–20 Internal Storage Devices

10.8 Removing a Hard Disk Drive

Figure 10–16 Removing a Hard Disk Drive

Tabs

Cutouts
Locking post
WSMXS052
.

9. Disconnect the SCSI cable from the drive.
10. Disconnect the drive power cable from the drive.
11. Replace the cover of the system unit. (See Section 9.3.)

Internal Storage Devices 10–21

11
Memory Modules
This chapter covers the following topics:
•

Identifying Memory Modules

•

Adding Memory to Your Workstation

•

Testing the Memory Module Installation

•

Removing Memory from Your Workstation

11.1 Identifying Memory Modules
Your workstation comes with 8 megabytes of memory built in. By adding
memory modules, you can increase the amount of memory in your system to as
much as 40 megabytes.
Caution
Touching the contacts that run along the bottom of a memory module
can damage or destroy the module.

Inside the system unit are the two pairs of connectors that hold your
workstation’s memory modules. They can hold either 2-megabyte or
8-megabyte modules. You can tell which type you have by looking at the
location of the nine-digit part number etched on the module.
Caution
Do not touch anything inside the system unit until you put on the
antistatic wrist strap provided by Digital.

Memory Modules 11–1

11.1 Identifying Memory Modules

Table 11–1 shows how to distinguish the two 2-megabyte modules from each
other and the 8-megabyte module.
Table 11–1 Identifying Memory Modules
Customer
Order No.

Module Part No.

Size

Distinguishing Features

MS01-AA

57-30735-02

2 MB

Etched part number (of the form 50xxxxx-xx)1 is in the center of the top edge
of the back of the module.

MS01-CA

57-34320-01

8 MB

Etched part number (of the form 50xxxxx-xx)1 is on the top left corner on the
front of the module.

MS01L-AA

54-21213-012

2 MB

There are no chips on one side of this
module.

1 Do not confuse the etched part number with the module part number, which has the prefix form

54-xxxxx-xx or 57-xxxxx-xx.
2 The 54-21213-01 (MS01L-AB) memory module can be used interchangeably with the 57-30735-02
(MS01-AA) module and can be used with the DECstation 5000 Model 100 as well as the Personal
DECstation but cannot be used with either the 2100 or 3100 models because of base system
hardware incompatibility.

Figure 11–1 and Figure 11–2 show how to distinguish the earlier 2-MB module
from the 8-MB module.
•

On the 2-MB module, the etched part number (not the module part
number) is in the center of the top edge of the back of the module. (You
are looking at the back of the module when you see a notch in its lower-left
corner.)

•

On the 8-MB module, the etched part number is on the top left corner on
the front of the module. (You are looking at the front of the module when
you see a notch in the lower right corner of the module.)

11–2 Memory Modules

11.1 Identifying Memory Modules

Figure 11–1 Identifying 2-MB Memory Modules

Front view

2-Mbyte SIMM:
Etch part number
in the center

XX-XX

XXXXX

Notch

Back view
WSMXM021

Memory Modules 11–3

11.1 Identifying Memory Modules

Figure 11–2 Identifying 8-MB Memory Modules
8-Mbyte SIMM:
Etch part number
at the end farthest
from the notch

XX-XX

XXX-X

Notch

Front view

Back view
WSMXM022

11–4 Memory Modules

11.1 Identifying Memory Modules

Table 11–2 shows how to configure memory modules for the amount of memory
you want in your system.
Table 11–2 Memory Module Configurations
SYSTEM
MEMORY

MEMORY MODULES TO ADD

8 megabytes

None

12 megabytes

Two 2-megabyte modules

16 megabytes

Four 2-megabyte modules

24 megabytes

Two 8-megabyte modules

40 megabytes

Four 8-megabyte modules

Caution
The connectors in your system unit must all contain the same type
of memory module: either 2-megabyte or 8-megabyte modules. Your
system will not work properly if you mix the two types.

11.2 Adding Memory to Your Workstation
1. If the workstation software is running, shut it down: type shutdown -h
now and press Return.
2. Turn off the system unit by pressing the O on the On/Off switch on the
back of the system unit. Unplug the system unit power cord.
3. Open the system unit. (See Section 9.1.)
4. Put on the antistatic wrist strap.
5. In the front of the system unit, you will see the two pairs of memory
connectors on the base system module. Each pair constitutes one slot. The
slot number is printed to the left of each pair of connectors. The slot closest
to you is slot 1. Behind slot 1 is slot 0. Locate the lowest-numbered empty
slot.

Memory Modules 11–5

11.2 Adding Memory to Your Workstation

Figure 11–3 Memory Module Connectors
0 Slot

1 Slot
MLO-010263

Figure 11–4 Inserting a Memory Module

WSMXS055
.

6. Memory modules are always installed in pairs. (See Table 11–2.) Install
the left module of the pair first, then the right.
Keeping your fingers away from the contacts that run along the bottom of
the memory module, hold the module so that the notch is on your right.
7. Tilt the top of the module toward the front of the system unit until you can
push the connector on the module into the connector in the memory slot.

11–6 Memory Modules

11.2 Adding Memory to Your Workstation

8. Move the top of the memory module back into the upright position until
the latches snap into place.
Figure 11–5 Installing a Memory Module

WSMXS028
.

9. When you have installed all your memory modules, replace the cover of the
system unit. (See Section 9.3.)

11.3 Testing the Memory Module Installation
Once you have installed new memory, you need to make sure that your
workstation recognizes it.
1. Turn on your system unit.
2. If your workstation software is set to start automatically, shut it down:
Type shutdown -h now and press Return.
3. When you see the console prompt (>>), type cnfg 3 and press Return. You
will see a display that begins with a line similar to this:
3: KN04

DEC

V1.0a

TCF0

(12 MB)

Below this line you will see several more lines of information. At the
bottom of the display is a section that looks like this:
cache: I(8 KB), D(8 KB), S(1024 KB); Scache line (32 bytes)
R4000 revision (3.0)
mem( 0): a0000000: a03fffff ( 4 MB)
mem( B): a0400000: a0bfffff ( 8 MB)
4. The information in the parentheses at the end of the last three lines tells
you how much memory your system is recognizing.
Memory Modules 11–7

11.3 Testing the Memory Module Installation

In this example, the workstation recognizes 4 megabytes of memory in slot
0, 4 megabytes in slot 1, and 8 megabytes in the base system module (B).
If the configuration display shows some amount of memory other than what
you have installed, turn to Chapter 14 for troubleshooting instructions or ask
your system manager or Digital service representative for help.

11.4 Removing Memory from Your Workstation
1. If the workstation software is running, shut it down: type shutdown -h
now and press Return.
2. Turn off the system unit by pressing the O on the On/Off switch on the
back of the system unit. Unplug the system unit power cord.
3. Open the system unit. (See Section 9.1.)
4. Locate the slot from which you want to remove the memory modules.
(Modules should always be removed in pairs.)
If a module is in front of the one you are removing, you must remove that
module first to gain access to the one you want to take out.

11–8 Memory Modules

11.4 Removing Memory from Your Workstation

5. Pull out the latches on the ends of the connector until you can feel them
release.
Figure 11–6 Releasing the Latches on a Slot Connector

WSMXS054
.

6. Tilt the memory module toward the front of the system unit until you can
lift it out of the slot connector.
Figure 11–7 Removing a Memory Module

WSMXS029
.

Memory Modules 11–9

12
CPU Modules
This chapter covers the following topics:
•

Removing a CPU Module

•

Installing a CPU Module

•

Testing Your CPU Module

12.1 Removing a CPU Module
1. If the workstation software is running, shut it down: type shutdown -h now
and press Return.
2. Turn off the system unit by pressing the O on the On/Off switch on the
back of the system unit. Unplug the system unit power cord.
3. Open the system unit. (See Section 9.1.)
4. Put on the antistatic wrist strap.
5. Locate the three mounting posts that fasten the CPU module to the base
system module.

CPU Modules 12–1

12.1 Removing a CPU Module

Figure 12–1 The CPU and its Mounting Posts
Mounting post
(one of three)
CPU module

MLO-010086

12–2 CPU Modules

12.1 Removing a CPU Module

6. Use the PC removal tool to squeeze the lock on one of the mounting posts
until it releases the corner of the CPU module. Lift the corner until it is
free from the lock. Repeat this procedure with the posts on the other two
locks.
Caution
Avoid touching the heat sinks on the CPU module; they break easily.

Figure 12–2 Releasing the Lock on a Mounting Post
PC board
removal tool
Mounting post
(one of three)

Lock

Heat sink

MLO-010087

7. Keeping your hands well away from the heat sinks, grip the edges of
the module and lift it up until it moves out of the connector on the base
module. You may need to rock the CPU module from side to side very
gently to loosen it.

CPU Modules 12–3

12.1 Removing a CPU Module

Figure 12–3 CPU Module and Base Module Connector
CPU module

Base system
module

MLO-010085

12.2 Installing a CPU Module
1. If necessary, open the system unit. (See Section 9.1.)
2. Put on the antistatic wrist strap.

12–4 CPU Modules

12.2 Installing a CPU Module

3. Check the switch packet on the module to make certain both switches are
in the off position, as shown in Figure 12–4.

Figure 12–4 R4000 CPU Module Switch Packet Settings

MLO-010466

4. Keeping your hands well away from the heat sinks, position the CPU
module so that its connector aligns with the connector on the base module.

CPU Modules 12–5

12.2 Installing a CPU Module

5. Align the three holes in the CPU module with the mounting posts on the
base module.
6. Push the CPU module straight down over the mounting posts. Press the
CPU module connector into the connector on the base module. Press each
of the three corner holes onto its corresponding mounting post.
Figure 12–5 Attaching the CPU Module

Cpu
connector

Base module
connector

Mounting post
(one of three)

MLO-010089

7. If you installed a different model CPU module than the old one, turn the
system unit cover upside down and remove the nameplate medallion, as
shown in Figure 12–6. Replace it with the new nameplate medallion.
8. Replace the cover of your system unit. (See Section 9.3.)

12–6 CPU Modules

12.2 Installing a CPU Module

Figure 12–6 Removing the Nameplate Medallion
Nameplate medallion tabs

Nameplate medallion tabs

System unit cover (upside down)

WS33O104

CPU Modules 12–7

12.2 Installing a CPU Module

9. Attach the product conversion label to the top of the system unit.
Figure 12–7 Attaching the Product Conversion Label
Product
conversion label

digi

t al

DEC station

5000

MLO-010164

12.3 Testing Your CPU Module
Once you have installed a new CPU module, you need to make sure that your
system recognizes it. Follow these steps:
1. Turn on your workstation.
2. At the console prompt (>>), type t 3/misc/cpu-type and press Return.
3. When the system recognizes a CPU module, it displays the following
message:
3/misc/cpu-type’s code: NDX-64A
If you install the CPU module incorrectly, the system will not come up. Check
the following:
•

Make sure that the connector on the CPU is pressed all the way into the
connector on the base system module.

•

Make sure that the connector pins are not bent.

If you still have problems, call your system manager or your Digital service
representative for help.

12–8 CPU Modules

Part IV
Workstation Management

13
Using the Console Program
This chapter covers the following topics:
•

Operating and Console Modes

•

Entering Console Mode

•

Console Command Conventions and Terms

•

Summary of Console Commands

13.1 Operating and Console Modes
Most of the time, you use your workstation in operating mode–that is, you use
the workstation software for tasks like these:
•

Creating and revising files (letters, charts, spreadsheets, and so on)

•

Backing up files

•

Sending and receiving electronic mail

You use console mode for communicating directly with your workstation to
perform tasks like these:
•

Running workstation self-tests

•

Displaying workstation hardware configurations

Using the Console Program 13–1

13.1 Operating and Console Modes

•

Displaying the list of available console commands and their formats

•

Setting workstation environment variables

When using console mode, you see one of these two prompts on the screen:
•

>> When this prompt appears, anyone can enter console commands.

•

R > When this prompt appears, full console use is restricted to users who
know the password.

13.2 Entering Console Mode
You can enter console mode in any of these ways:
•

If the workstation software is running, shut it down by typing shutdown
-h now and pressing Return.
Note
You must be in superuser mode in order to shut down the system.
This requires that you obtain superuser privileges from your system
manager. Enter superuser mode by typing su, pressing Return, and
entering your password.) Once you have shut down the software, the
system enters console mode automatically. This is the most orderly way
to enter console mode; it keeps your data from being lost or damaged.

•

If the system software is hung up and you cannot shut it down, press and
hold down these three keys on the keyboard: Ctrl, Alt, and Delete. This
resets the system.
(If you are having a recurring problem and want to make it possible for
the system’s memory to be examined, you can shut down the software by
pressing Ctrl, Alt, and Return. This halts the system but does not reset it.)

13–2 Using the Console Program

13.2 Entering Console Mode

•

If the system is off, turn it on by pressing | on the On/Off switch on the
back of the system unit. The system will enter console mode unless it has
been set to start the system software automatically.

13.3 Console Command Conventions and Terms
Be sure to follow these guidelines when you type console commands:
•

Type uppercase and lowercase letters exactly as they appear in command
lines. The system treats uppercase and lowercase letters as different input.

•

Press Return after you type a command.

•

Enter number values as follows:
Enter decimal values as a string of decimal digits with no leading zeros
(for example, 123).
Enter octal values as a string of octal digits with a leading zero (for
example, 0177).
Enter hexadecimal values as a string of hexadecimal digits preceded by
a zero and a lowercase letter (for example, 0xFE04).

•

When reading or writing to memory, you have a choice of data sizes:
byte, halfword, or word. Because a word is 4 bytes, successive addresses
referenced by a word are successive multiples of 4. For example, the
address following 0x80000004 is 0x80000008. You must specify an address
that is on a boundary for the data size you are using.

Using the Console Program 13–3

13.3 Console Command Conventions and Terms

•

The following key combinations have an immediate effect in console mode:
Ctrl-s freezes the screen display.
Ctrl-q releases a frozen screen display.
Ctrl-c aborts a command.
Ctrl-u erases a partially typed command line.

13.3.1 Conventions Used
•

Letters in bold face type are to be typed exactly as they appear.

•

Letters in italic type are variables that you replace with actual values.
(Note that the help and menu screens display these variables in all capital
letters.)

•

Arguments enclosed in square brackets ([ ]) are optional.

•

Ellipses (...) follow an argument that can be repeated.

•

A vertical bar ( | ) separates choices. You can think of the bar as a symbol
meaning or.

•

Parentheses enclose a group of values from which you must select one
value. For example, -(b | h | w) means enter -b or -h or -w.

13.3.2 Definition of Terms
•

Controller
A hardware device that directs the operation and communications flow to
and from other devices or other controllers. Each system controller has a
unique controller ID.

13–4 Using the Console Program

13.3 Console Command Conventions and Terms

•

Script
A collection of console commands that run in a set order. Test scripts,
which are collections of individual tests and may also contain other test
scripts, are commonly used for troubleshooting the system.

•

Slot
The physical location of a module or modules.
TURBOchannel option modules occupy slots 0 and 1.
The base system occupies slot 3. Base system hardware includes
the system module, CPU module, and memory modules. The system
module contains the base system SCSI and Ethernet controllers.

Using the Console Program 13–5

13.4 Summary of Console Commands

13.4 Summary of Console Commands
Table 13–1 gives a brief explanation of the function of each of the console
commands. A more detailed explanation of each command follows the table.
Table 13–1 Console Commands
Command

Description

Type

Displays list of console
commands and formats.

Displays system info

boot

Boots system.

Operational commands

cat Script

Lists test contained in script.

Lists Diagnostic routines

cnfg

Shows HW configuration.

Displays system info

Deposits data into memory.

Miscellaneous commands

erl

Shows error history.

Displays system info

Goto an address.

init

Initializes system.

Operational commands

ls #

Lists scripts.

Lists Diagnostic routines

passwd

Sets console password.

Sets system parameters

printenv

Shows environmental variables.

Displays system info

restart

Restarts system software.

Restarts software

script_name

Executes script.

Runs Diagnostics

setenv

Sets environmental variables.

Sets system parameters

Executes script with options.

Runs Diagnostics

t #/?

Lists test for slot #.

Lists Diagnostic routines

t #/t_name

Executes test on slot #.

Runs Diagnostics

unsetenv

Removes environmental
variables.

Sets system parameters

13–6 Using the Console Program

13.4 Summary of Console Commands

13.4.1 ? Command
Use the ? command to display a list of available console commands and their
formats.
The ? command format is
? [cmd]
Keep the following points in mind about the ? command:
•

To display the format for all available console commands, omit the optional
cmd parameter.

•

To display the format for a single command, replace the optional cmd
parameter with the name of the command for which you want the format
displayed.

13.4.2 boot Command
Use the boot command to start up the system software.
The boot command format is
boot [-z seconds] [-n] [bootpath] [-a] [args...]
Keep the following points in mind about the boot command:
•

Include the optional -z seconds parameter to have the system wait a certain
number of seconds before starting. Replace seconds with the number of
seconds the system should wait before starting.

•

Include the optional -n parameter to have the boot command load, but not
execute, the specified file.

•

Replace the optional bootpath parameter with the specification for the file
you are using to boot. The file specification form depends on the type of
boot device you use.

•

To boot from Ethernet, use this form:
slot number/protocol[/file].
slot number is the slot number of the Ethernet controller you are using
to boot.
protocol is the name of the network protocol that performs the boot
operation—either mop or tftp.
file represents a specific file that you use to boot.
For example, to use the protocol named mop to boot from the base system
Ethernet, which uses slot number 3, type boot 3/mop and press Return.

Using the Console Program 13–7

13.4 Summary of Console Commands

•

To boot from a drive, use this form:
slot number/(rz | tz) scsi id/filename.
slot number is the SCSI controller slot number.
Use rz to boot from a hard disk or compact disc drive; use tz to boot
from a tape drive.
scsi id is the SCSI ID for the drive you are using to boot.
file name is the name of the specific file you want to boot.
To boot the file called vmunix from a tape drive that has SCSI ID 5 and is
connected to a SCSI option module in slot 1, type boot 1/tz5/vmunix and
press Return.

•

To perform a multiuser boot operation, include the -a argument. If you omit
the -a argument, the system performs a single-user boot. For example, to
boot the file named vmunix in multiuser mode from a hard disk drive
with SCSI ID 2 that is connected to the SCSI connector on the back of the
system unit, type boot 3/rz2/vmunix -a and press Return.

•

To use the base system frame buffer as an additional video display in part
of a multi-screen graphics configuration, include the -mg argument in the
boot command. For example, type boot 3/rz2/vmunix -a -mg to use the
base frame buffer as an additional graphics display. The -mg argument
can also be saved as a boot environment variable—for example: setenv
"boot/rz2/ -a -mg".

•

If you do not include a bootpath in the boot command, the system uses the
boot environment variable.

•

If you include any additional arguments, you must type the entire boot
command. The system ignores the boot environment variable whenever
you specify any arguments in the boot command.

13–8 Using the Console Program

13.4 Summary of Console Commands

•

If you use any spaces or tabs in the boot environment variable, you must
surround the entire value with double quotation marks. For example, to
set the boot environment variable to use the mop protocol to perform a
multiuser boot from the base system Ethernet controller in slot 3, type
setenv boot ‘‘3/mop -a’’.

For details about the boot command parameters for each TURBOchannel
option module, refer to the TURBOchannel Options User’s Guide.

13.4.3 cat Command
Use the cat command to display the contents of a script.
The cat command format is
cat slot-number/script-name
•

slot-number is the number of the module that has the contents you want to
display. (The base system module is slot 3.)

•

script-name is the name of the script for which you want to display the
contents.

13.4.4 cnfg Command
Use the cnfg command to display hardware configuration information.
The cnfg command format is
cnfg [slot-number]
•

To display general system configuration information, type the cnfg
command without the slot-number parameter.

•

To display detailed configuration information for an individual module,
replace the optional slot-number parameter with the slot number of the
module for which you want a configuration display.

This example shows a previously installed internal tape drive (tz1) connected
to the system unit or base slot 3: The numbers in black circles are explained in
the text that follows the example.

Using the Console Program 13–9

13.4 Summary of Console Commands

>>cnfg 3

3: KN04-AA

DEC

V1.0a

TCF0

(12 MB)
(DV -- d=8)
(Sb: devs = 2)

Name
Rev.
Vendor
================================
VSXXX-BB
AV1.0
DEC
LK501-AA
AV1.0
DEC
(FDI: 0)
(enet: 08-00-2b-2f-e8-81)
(SCSI = 7)

--------------------------------------------------DEV PID
VID
REV
SCSI DEV
===== ================== ========= ====== ========
Rz1
DIR
cache: I(8 KB), D(8 KB), S(1024 KB); Scache line (32 bytes)
R4000 revision (3.0)

mem( 0): a0000000:a03fffff ( 4 MB)
mem( B): a0400000:a0bfffff ( 8 MB)
Slot number.
Model code of the hardware item. For example, KN04--AA is the model code
of the system module.

Module code. This code shows what kind of module is installed in the slot.
Table 13–2 explains the codes.

Ethernet address number.

Device code with SCSI ID number of the device. For example, the entry of

rz1 means that 1 is the SCSI ID number. Table 13–3 explains each device
code.

Product ID. Some devices have an entry in this column, but others do not.

Device descriptor. This is a general description of the device. There are
three device descriptors: DIR for direct access drives, such as hard disk
and floppy drives; SEQ for sequential access drives, such as tape drives; and
CD--ROM, for optical compact disc drives.

Memory slot number.

Amount of memory in the slot.

13–10 Using the Console Program

13.4 Summary of Console Commands

Table 13–2 show module codes, including examples of codes for some
TURBOchannel option modules. For more information about specific option
modules, refer to the documentation that came with the module.
Table 13–2 Module Codes
Code

Description

MX
CX
PX
DA: PXG

Monochrome frame buffer.
Color frame buffer.
2D graphics accelerator.
Low 3D graphics accelerator. Installed in two
adjacent slots, but shown as being installed in the
lower-numbered slot.

EA: PXG

Mid 3D graphics accelerator. Installed in two
adjacent slots, but shown as being installed in the
lower-numbered slot.

FA:PXG_T

High 3D graphics accelerator. Installed in all three
slots, but shown as being installed in slot 1.

SCSI

SCSI module. Base slot 3 always has a SCSI
module.

enet:

Ethernet module. Base slot 3 always has a
ThickWire Ethernet module. Every Ethernet
module has a unique Ethernet station address
which identifies the module for the network
software. The number after enet: is the Ethernet
station address.

12 MB

Memory module. Base slot 3 always contains a
memory module. The number indicates how many
megabytes of memory are installed.

Table 13–3 describes each SCSI device code.
Table 13–3 SCSI Device Codes
Device Code

Device Descriptor

Type of Drive

DIR

Floppy disk and
diskette

rz
rz
tz

CD–ROM

Optical compact disc

DIR

Hard disk

SEQ

Tape

Using the Console Program 13–11

13.4 Summary of Console Commands

13.4.5 d Command
Use the d command to deposit values in memory.
The d command format is
d [-(b | h | w)] [-S count] rng
•

Use one of the optional parameters -(b | h | w ) to specify whether to
deposit the contents as bytes (-b), halfwords (-h), or words (-w).

•

Include the optional -S count parameter to store the same value more than
once. Replace count with the number of times that you want the value to
be stored.

•

Use the rng parameter to set the range of addresses across which the
values are stored.
To deposit values at a single address, replace rng with that address.
To deposit a number of values across a range of addresses, replace
rng with the address range. Use the form address-low:address-high to
define the range.
When you enter the address range, replace address-low with the
starting address for storing values and replace address-high with the
ending address for storing values.

•

To examine values at a series of addresses, replace rng with the starting
address and the number of successive addresses you want to examine.
Use the form address-low # count to specify the addresses where you store
values. When you type this address range format, replace address-low with
the starting address for storing values. Replace count with the number of
addresses at which you want to store values.

•

To specify more than one address range, separate each range specification
with commas. Leave no spaces between the specifications.

13.4.6 erl Command
Use the erl command to display or clear the log of the errors that occurred
since the most recent power-up or reset operation.
The erl command format is
erl [-c]
•

To display the current error log, use the erl command without the -c option.

13–12 Using the Console Program

13.4 Summary of Console Commands

•

To clear the error log, include the -c option. When the error log buffer is
full, no more messages are added until the buffer is cleared by the erl -c
command.

13.4.7 go Command
Use the go command to transfer system control to a specific system address.
The go command format is
go [address]
•

To transfer system control to the address specified in the last boot -n
command, type the go command without the address parameter. If you
omit the address parameter, and if no previous boot -n command has been
issued, the system ignores the go command.

•

To transfer system control to the contents of a specific address, include the
address parameter. Replace the address parameter with the address to
which you want to transfer control.

13.4.8 init Command
Use the init command to initialize module hardware.
The init command format is
init [slot-number] [-m]
•

To initialize the entire system, specify the init command with no additional
arguments.

•

To initialize an individual module, replace the optional slot-number
parameter with the slot number of the module that you want to initialize.

•

If you perform an init operation on the system module (slot 3), include the
optional -m parameter to zero all memory modules in the system module.

13.4.9 ls Command
Use the ls command to list the scripts and other objects that are in system
ROM.
The ls command format is
ls [slot-number]
•

To display a list of scripts or other objects that are available in an
individual module, replace the optional slot number parameter with
the slot number of the module that contains the files you want to display.

Using the Console Program 13–13

13.4 Summary of Console Commands

13.4.10 passwd Command
Use the passwd command to enter, set, or clear a password.
The passwd command format is
passwd [-c] [-s]
•

If the console prompt is R>, you can use only the boot and passwd
commands until you enter the correct password.

•

To enter an existing password, type passwd without any additional
parameters. At the pwd: prompt, enter the password. Then press Return.

•

After you enter the correct password, or if the system does not require a
password, the system displays the console prompt (>>). You can use all
console commands whenever the console prompt is >>.

•

To clear an existing password, include the -c parameter when you type the
passwd command. First use the passwd command to enter the existing
password. After the console prompt >> appears, type passwd -c and press
Return. The system then removes the password requirement.

•

To set a new password, include the -s parameter. Enter the new password
at the pwd: prompt. When the pwd: prompt appears a second time, type
the password again. If the two password entries match, the system sets
the new value as the password.

•

The password must have between 6 and 32 characters. The system is
case-sensitive and treats uppercase and lowercase letters as different
characters.

13.4.11 printenv Command
Environment variables set system operating conditions. You can display
(using printenv), set or change (using setenv), and remove (using unsetenv)
environment variables with console commands. Table 13–4 lists the
environment variables you can set.
The printenv command format is
printenv [variable]
•

To display the entire list of environment variables, omit the optional
variable parameter.

•

To display an individual environment variable, replace variable with the
name of the environment variable you want to display.

13–14 Using the Console Program

13.4 Summary of Console Commands

13.4.12 restart Command
Use the restart command to restart the system software. For the restart
operation to succeed, the operating system software must have a restart block
set up in memory.
The restart command format is
restart

13.4.13 script Command
Use the script command to create a temporary set of console commands that
run in an order you specify.
The script command format is
script name
•

When you type the script command, replace name with the name you are
giving the script. Then press Return.
After you press Return, type the commands you want to include in the
script. Press Return after each command you type. Commands can be t or
sh commands. Enter one command per line. When you finish typing the
commands, press Ctrl-d or press Return twice to complete the script.

•

To run the script, use the sh command. When you run the script, the
commands execute in the order in which you entered them when you
created the script.

13.4.14 setenv Command
Environment variables set system operating conditions. You can display
(using printenv), set or change (using setenv), and remove (using unsetenv)
environment variables with console commands. Table 13–4 lists the
environment variables you can set.
The setenv command format is
setenv variable value
•

Replace variable with the name of the environment variable you want to
set.

•

Replace value with the new value you want to assign to the environment
variable. Note that if the new value contains blank spaces or tabs, you
must use double quotation marks (") at the beginning and end of the value.

Using the Console Program 13–15

13.4 Summary of Console Commands

Table 13–4 Environment Variables
Environment
Variable

Description

boot

Sets the default boot path.

console

Selects the system console.
•

Set the console variable to s to enable the terminal connected to the
communications connector as the active console.
If the console variable is set to anything other than s, the monitor
connected to the graphics module in the lowest-numbered slot is enabled.
If no graphics module is installed and the keyboard is connected, the
monitor is connected to the base system frame buffer. If the system does
not detect a keyboard, even if a graphics option is installed, the terminal
connected to the serial communications connector is the active console,
and no console display will be seen on any of the graphics monitors.

haltaction

osconsole

Specifies how the system responds if it halts.
•

Set the haltaction variable to b to cause the console to boot after the
console performs the appropriate initialization and self-tests.

•

Set the haltaction variable to h to cause the console to halt and attempt
no other action.

•

Set the haltaction variable to r to cause the console to restart and then
attempt to boot if the restart operation fails.

Sets the way in which the screen scrolls lines of text.
•

Set the more variable to 0 to have text scroll to the end before stopping.

•

Set the more variable to a number other than zero to have scrolling pause
after that number of lines has been displayed.

Contains the slot numbers of the console drivers. If a TTY driver from slot x
serves as the console, osconsole is set to x. If a CRT driver from slot y and a
kbd driver from slot z serve as the console, osconsole is set to y,z.
Although the environment variable display includes the osconsole setting, you
cannot set this variable. It is automatically set by the system.
(continued on next page)

13–16 Using the Console Program

13.4 Summary of Console Commands

Table 13–4 (Cont.) Environment Variables
Environment
Variable

Description

testaction

Specifies the type of power-up self-test the system runs.

•

Specify q to run a quick test when the power-up self-test runs.

•

Specify t to run a thorough test when the power-up self-test runs.

Specifies the slot number of the module that contains the current script. If no
script is active, the system specifies the base system module, which uses slot
number 3.
Although the environment variable display includes the # setting, you cannot
set this variable. It is automatically set by the system.

13.4.15 sh Command
Use the sh command to run a script.
The sh command format is
sh [-b] [-e] [ -l] [-v] [-S] [slot-number/script] [arg...]
•

Include the optional -b parameter to execute the script directly, instead of
through a subshell.

•

Include the optional -e parameter to stop the script if an error occurs.

•

Include the optional -1 parameter to have the script loop until you press
Ctrl-c.

•

Include the optional -v parameter to echo the script to the console as the
test runs.

•

Include the optional -S parameter to suppress any error messages if the
script is not found.

•

Include the optional slot number/script parameter to run a specific script.
slot number is the slot number of the module that has the script you
want to run.
script is the name of the script you want to run.

•

You can also run a script by typing slot number/script.
slot number is the slot number of the module that contains the script
you want to run.

Using the Console Program 13–17

13.4 Summary of Console Commands

script is the name of the script you want to run.
For example, to run the thorough power-up self-test script for a SCSI
controller and drives in slot 2, type sh 2/pst-t and press Return.

13.4.16 t Command
Use the t command to run individual tests.
The t command format is
t [-l] slot name/test name [arg...]
•

Include the optional -l parameter to have the test loop until you press
Ctrl-c or reset the system.

•

Replace slot number with the slot number of the module you want to test.

•

Replace test name with the name of the individual test you want to run.

To display the name and format of all individual tests for a module, type t slot
number/?, (replacing slot number with the slot number of the module for which
you want to display tests) and press Return.

13.4.17 test Command
Use the test command to run a thorough test of all system hardware.
The test command format is
test

13.4.18 unsetenv Command
Environment variables set system operating conditions. You can display
(using printenv), set or change (using setenv), and remove (using unsetenv)
environment variables with console commands. Table 13–4, lists the
environment variables you can set.
The unsetenv command removes a standard environment variable (except
osconsole and #) during the current session only. When the system is reset,
reinitialized, or powered up, the values of the standard environment variables
revert to their previously set values.
The unsetenv command format is
unsetenv variable
When you type the unsetenv command, replace variable with the name of the
environment variable you want to remove.

13–18 Using the Console Program

14
Troubleshooting
This chapter covers the following topics:
•

Troubleshooting Techniques

•

Invoking the Power-up Self-Test

•

Interpreting Video Error Messages

•

Minimum Configuration Troubleshooting with the System LED

•

Understanding the Power-up Self-Test Sequence and the LED Indicator

14.1 Troubleshooting Techniques
The first step in isolating and detecting problems on a Personal DECstation
is to interpret the results of the system’s ROM-based power-up self-test. One
of the three procedures described in this section can be used to identify the
problem module. These techniques will be explained in detail in this chapter.
1. Troubleshooting with the graphics monitor
The primary method of troubleshooting your workstation is to interpret the
console error messages which are displayed on your video screen during the
power-up self-test. Once you have identified the problem module, replace
it. The power-up self-test should then be rerun to verify that the system is
operational.
2. Troubleshooting with the alternate video
Some failures can prevent the system from displaying error messages on
the graphics monitor. In this case, connect a VT320 terminal or equivalent
to the RS232 port on the back of the unit. You can then use this alternative
video display to troubleshoot your system.

Troubleshooting 14–1

14.1 Troubleshooting Techniques

3. Troubleshooting with the system LED
If you do not have access to a terminal or equivalent, you can use the
status LED as a troubleshooting aid. A single green LED, mounted to
the front of the power supply, flashes several times during the system
power-up. These flashes indicate how far the the unit has progressed
through the power-up sequence.
By interpreting these flashes you can determine which modules are
operational and which modules are candidates for replacement. How to
interpret the system LED is described in detail in Section 14.5.

14.2 Invoking the Power-up Self-Test
The most straightforward way to invoke the power-up self-test diagnostics is to
power-cycle the system. This is done by simply turning the power off and then
turning it back on.
Note
Power-cycling the machine will erase the contents of memory.
You can also type the commands pst-q or pst-t at the console prompt. pst-t
will run a thorough test; pst-q will run a reduced version of the power-up
self-test to test all major subsystems and has been optimized to execute
quickly.
When running the power-up self-test, it is important to either have a device
connected to the Ethernet and SCSI ports, or install the Ethernet loopback
connector (Part #12-22196-02) and the SCSI terminator (Part #12-29635-01). If
nothing is connected to these ports, the system may report false errors.
The Ethernet diagnostics used by pst-t actually send data out onto the network
and then listen for a response. If none is received, an error is reported. The
loopback connector routes this transmitted message back to the system,
thereby enabling the Ethernet diagnostic to test the complete circuit path.
The basic design and architecture of the SCSI bus requires that a terminator
be placed on the connector at the end of the bus. The SCSI I/O bus allows you
to daisy-chain up to seven devices together. These devices are most often disk
drives that use the SCSI bus as a party-line to communicate with the system.

14–2 Troubleshooting

14.3 Interpreting Video Error Messages

14.3 Interpreting Video Error Messages
When the power-up self-test diagnostics encounter a failure, a formatted error
message displays. In the example below, a problem was detected with the SCSI
control portion of the base module.
The key pieces of information which led to this conclusion are that the failure
was detected on TURBOchannel slot 3, the base module. The problem was
with the SCSI subsystem, specifically the controller. Finally, the diagnostic
identified the module as the KN04.
Error Message Format:
?TFL slot_number/test_name (n:description) [module]
Example:
Name of the test
-------------------|
| Name sub test which failed
| -------------------------| |
|
|
| |
Descriptive failure info
| |
-----------------------| |
|
?TFL 3/scsi/cntrl (3: cntxfr) [KN04]
|
|
|
|
|
|
|
|
ID of failed module
|
|
|
-----------------------------|
Number of sub test which failed
--------------TURBOchannel slot
Slot number
3= Base module, CPU and Memory
0= TURBOchannel option in slot 0
1= TURBOchannel option in slot 1
Table 14–1 and Table 14–2 contain information that is useful when interpreting
error messages.

Troubleshooting 14–3

14.3 Interpreting Video Error Messages

Table 14–1 Diagnostic Tests for Base System
Test

Subsystem

Problem module

ACCESS.bus

Base module, keyboard, or mouse

cache

CPU

CPU daughter card

crt

Video frame buffer

Base module

epm

EEPROM

Base module

fdi

Floppy disk

Base module or floppy drive

fpu

CPU

CPU daughter card

isdn

ISDN and sound

Base module, ISDN peripherals

mem

Memory

Base module, memory SIMMs

Ethernet

Base module, Enet card, Enet
peripherals

rtc

Real-time clock

Base module

scache

Secondary cache

CPU daughter card

scc

RS232

Base module, RS232 peripherals

scsi

SCSI

Base module, SCSI card, SCSI
peripherals

Table 14–2 Identification Codes for Selected TURBOchannel Options
Module ID

Description

KN04

Base module, CPU, memory

PMAG-AA

MX mono frame buffer

PMAG-BA

CX color frame buffer

PMAG-CA

PX 2D graphics accelerator

PMAG-DA

PXG 3D graphics accelerator

PMAG-FA

PXG turbo graphics accelerator

PMAGB-BA

HX smart frame buffer

PMAG-JA

TX true-color frame buffer

PMAD-AA

NI thickwire Enet

PMAZ-AA

SCSI host adapter

14–4 Troubleshooting

14.4 Minimum Configuration Troubleshooting with the System LED

14.4 Minimum Configuration Troubleshooting with the
System LED
The most effective way to use the system LED to troubleshoot is to strip the
unit to its bare essentials. Such a minimal system consists of the CPU module,
base module, and the power supply.
To reduce the unit to a minimum configuration, disconnect all cables in the
rear of the system. Then attach the Ethernet loopback connector (Part #1222196-02) and the SCSI terminator (Part #12-29635-01). Then remove all
TURBOchannel options that may be installed as well as all memory modules.
You can then run the power-up self-test and interpret the flashing system LED
to isolate and correct problems with this core system.
The keyboard and video subsystem can then be reinstalled. If necessary the
power-up self-test can again be used to isolate and correct problems with the
video.
Once the video is reestablished, the remaining components can be reinstalled
one at a time. If a problem occurs at this point, the error messages displayed
on the screen can be used to resolve the problem.
More experienced users may not need to strip the system down to a minimum
configuration. However, troubleshooting a fully configured workstation with
the system LED generally requires a significant amount of knowledge of
system operation.

Troubleshooting 14–5

14.5 Understanding the Power-up Self-Test Sequence and the LED Indicator

14.5 Understanding the Power-up Self-Test Sequence and
the LED Indicator
A single LED, mounted on the front of the power supply, flashes several
times during system power-up. These flashes indicate how far the unit has
progressed through the power-up sequence.
By interpreting these flashes you can determine which pieces of the unit are
operational and then deduce which modules are not functional. It is important
to watch the LED closely during the entire power-up sequence.
Note
The front-mounted system LED is a new feature which has been
introduced with the Personal DECstation. It is designed as a diagnostic
substitute for the traditional eight-segment LED display located on the
rear of DECstations. It is not a DCOK LED.

14–6 Troubleshooting

14.5 Understanding the Power-up Self-Test Sequence and the LED Indicator

14.5.1 The Power-up Sequence
•

Immediately after the system power comes on, the firmware will begin to
execute code.
2 flashes will be displayed. This indicates that the power supply works,
and that portions of the CPU and base module are operational.

•

The LED then goes dark for about 30 seconds. During this time period
the console code will be loaded into memory. The system will then identify
what hardware is present, and select which device is to be the default video
console.
Continuous flashes will be displayed if a problem is encountered using
the memory contained on the base module.
When the system reaches the point where text will be displayed on the
default console device, the LED will flash one of two patterns:
2 flashes indicate that a graphics monitor has been selected.
3 flashes indicate that the RS232 port has been selected.

•

The LED then goes dark a second time for about 30 seconds. The power-up
self-test diagnostic is executed. At this point, status and error messages
will be displayed on the console device.
When the self-test is complete, the LED will turn on and stay on.

Figure 14–1, Table 14–3, Table 14–4, and Table 14–5 contain additional
information which you may find useful when troubleshooting with the system
LED.

Troubleshooting 14–7

14.5 Understanding the Power-up Self-Test Sequence and the LED Indicator

Figure 14–1 Flash Sequence of the Diagnostic LED Indicator

(POWERUP)

30 SECONDS
(INITIALIZING FIRMWARE)

(VIDEO COMES ON
AT THIS POINT)

NORMAL
POWERUP
SELF−TEST

ERRORS
DETECTED

2 SHORT LED FLASHES
(see Table 13−4)

LED STAYS OFF
(see Table 13−4)

LED STAYS OFF
FOR LESS THAN
30 SECONDS
BEFORE...

LED EXHIBITS A
SERIES OF CONTINUOUS
LONG FLASHES
(see Table 13−5)

1 LONG LED FLASH
FOLLOWED BY EITHER:
1 short LED flash, or
2 short LED flashes
(see Table 13−5)

LED STAYS OFF FOR
MORE THAN 60 SECONDS
(see Table 13−5)

30 SECONDS
(POWERUP SELF−TEST)

LED STAYS ON
(see Table 13−6)

TEST COMPLETE

14–8 Troubleshooting

14.5 Understanding the Power-up Self-Test Sequence and the LED Indicator

Table 14–3 Interpreting Diagnostic LED Indicator at Power-Up
Corrective
Action

LED Function

Meaning

Two short flashes at power-up

Power-on indication set immediately after system
firmware begins execution. Indicates that:
1. System is receiving dc power at correct voltage levels.
2. Instructions can be fetched from system ROM via
TURBOchannel Read operations.
3. System processor can execute non-cached instructions.
4. Processor can perform TURBOchannel write operations
to a register in the I/O CTRL ASIC that drives the power
supply LED.

None

LED stays off at power-up

Power supply, CPU, TURBOchannel option, system ROM,
or I/O CNTL ASIC could be at fault.

Check power
supply, swap
CPU, swap
base module

Note
Actual test time will vary depending on the memory and the
TUROBchannel options which have been installed.

Table 14–4 Interpreting Diagnostic LED Indicator During First 30 Seconds After
Power-Up (Firmware Initialization Period)
LED Function

Meaning

Corrective Action

Off for less than 30
seconds after first two
flashes

Power-up self-test in progress.

None

Off for more than 30
seconds after first two
flashes

Some failure detected during power-up
self-test that could not be isolated.

Swap base module
and/or CPU daughter
card

A continuous series of
long flashes

Memory failed during firmware
initialization.

Remove all memory
SIMMs and retest
to determine if the
memory on the base
module or on a SIMM is
faulty
(continued on next page)

Troubleshooting 14–9

14.5 Understanding the Power-up Self-Test Sequence and the LED Indicator

Table 14–4 (Cont.) Interpreting Diagnostic LED Indicator During First 30 Seconds
After Power-Up (Firmware Initialization Period)
LED Function

Meaning

Corrective Action

One long flash followed by
one short flash

kbd (ACCESS.bus keyboard input) and
crt selected as firmware console devices:
system configured as a workstation.

None

One long flash followed by
two short flashes

tty (Serial line input/output) connected
to the Personal DECstation’s RS232
port selected as firmware console device:
system configured as a server.

None, unless expecting
a workstation
configuration, in which
case troubleshoot the
ACCESS.bus keyboard

Table 14–5 Interpreting Diagnostic LED Indicator During Second 30 Seconds
Following First Video (Power-Up Self-Test Period)
LED Function

Meaning

Corrective Action

LED stays on continuously

Firmware test sequence completed
without detection of any errors.

None

14.5.2 When the Power-up LED Indicator Is Inactive
Sometimes the single power-up indicator of the Personal DECstation is itself
not working. This means that one of the following parts is defective:
•

Power supply

•

CPU daughter card

•

System module

To determine if the power supply is defective, turn on the power supply and
place an Ethernet loopback connector on the Ethernet port. The LED in the
loopback connector will glow when the power supply is generating correctly
regulated dc power.
If the loopback connector LED does not glow, replace the power supply.
If the loopback connector does glow and yet the power-up indicator LED is still
inactive, replace the CPU daughter card.
If, after having replaced the CPU daughter card, problems persist, replace the
system module.

14–10 Troubleshooting

Part V
Appendixes

A
Regulatory Information for the UK
This appendix provides information on the Personal DECstation 5000
workstation that is required by the United Kingdom.
•

Service Requirements

•

Approvals for Digital Circuits

•

Host Independent Approvals

•

Host Power Rating

•

Environmental Conditions

•

Apparatus Between the Approved Apparatus and a Digital Circuit (PTT)

The Personal DECstation 5000 Model 50 workstation is manufactured by
Digital Equipment Corporation. The model number of the communication
option is PMBA-AA.

Regulatory Information for the UK A–1

A.1 Service Requirements

A.1 Service Requirements
The following table describes the service category, interface type, data rate,
physical and electrical requirements, and PTO for the PMBA-AA.
Table A–1 PMBA-AA Service Requirements
Service
Category

Data Rate

Physical
Electrical
Requirements Requirements

PTO
BT1 /Hull2 /
MCL3

CCITT

2400

ISO 2110

Yes/Yes/Yes

Recommend

4800

X.21bis

9600

BS.6623:

Cable:

Yes/Yes/Yes

19200

Part 1
1985

BC22F-10
BC22F-25

No/No/Yes

Interface
Type

V.24/V.28

Yes/Yes/Yes

1 BT - British Telecommunications plc
2 Hull - Kingston Communications (Hull) plc
3 MCL - Mercury Communications Limited

The maximum approved cable length is 25 feet, comprising:
Cat 1

V.24

25 feet for extension

BC22F-25

A.2 Approvals for Digital Circuits
The PMBA-AA is approved for direct connection to a particular digital
circuit. This approval includes interconnecting cable with mating connectors
conforming to BS6623 part 1 and part 4.
If the product is connected to the service with anything other than its own
approved cables, those cables must benefit from the relevant general approval
and/or conform with any other applicable requirements.

A–2 Regulatory Information for the UK

A.2 Approvals for Digital Circuits

Caution
Ports J2, J3, J4, J5, J6, J7, J16, J17, J28, J33, J54, J55, J56, J57
(shown in Figure A–1) do not provide sufficient isolation to satisfy the
requirements of the relevant parts of standard BS6301. Any product
connected to these ports must meet one of the following conditions:
•

Be covered by OFTEL’s General Approval NS/G/1234/J/100003 (All
products supplied by Digital comply with this General Approval.)

•

Have been approved to the relevant parts of standard BS6301

•

Have previously been evaluated against the British Telecom (Post
Office) Technical Guide 2 or 26 and given permission to attach

Other usage will invalidate any approval given to this apparatus.

Interconnection directly, or by way of other apparatus, of ports marked by the
safety warning label with other ports that are marked or not so marked, may
produce hazardous conditions on the network. Seek advice from a competent
engineer before making any such connection.

Regulatory Information for the UK A–3

A.3 Host Independent Approvals

A.3 Host Independent Approvals
The PMBA-AA is approved only for installation in an approved host with
approved attachments. For approval, the host and host attachments must be
either:
•

Type-approved (meaning the equipment is built exactly like the models
that were originally approved)

•

Marked with or supplied with a statement that the host is supplied under
General Approval Number NS/G/1234/J/100003, if the equipment was
supplied after 1st March 1989.

Except at the edge connector which plugs into the host’s expansion slot,
clearance and creepage distances of Xmm and Ymm, as listed below must be
maintained between the PMBA-AA and other parts of the host, including any
other expansion cards fitted.
Table A–2 Clearance and Creepage Specs for PMBA-AA
Clearance
Xmm

Creepage
Ymm

Voltage1

2.0

2.4 (3.8)

up to 50

2.6

3.0 (4.8)

up to 125

4.0

5.0 (8.0)

up to 250

4.0

6.4 (10.0)

up to 300

1 Used or generated by other parts of the host or expansion card (Vrms or Vdc)

Clearance is the shortest distance in air between two points. Creepage is
the shortest distance along continuous solid parts between the same two
points. The creepage distances apply when installed in a normal office
environment. The creepage distance shown in parentheses apply where
the local environment within the Host Computer is subject to conductive
pollution or dry non-conductive pollution which could become conductive due
to condensation. These distances can be checked by measuring between the
adjacent parts.
If in doubt, advice should be obtained from a competent telecom safety
engineer. Failure to install the PMBA-AA in accordance with these instructions
will invalidate the approval.

A–4 Regulatory Information for the UK

A.4 Host Power Rating

A.4 Host Power Rating
The user must ensure that the power drawn by the PMBA-AA, together with
the host and other auxiliary apparatus drawing power from the host, is within
the rating of the host power supply.
Digital has designed all permutations of the host configuration to operate
within the limits of the host power rating.
Table A–3 Module Power Rating for PMBA-AA
Supply (+/– 4%)
(Volts)

Maximum Current
( Amps)

Typical Current
(Amps)

+5.1

4.0

+12.1

3.0

0.4

A.5 Environmental Conditions
See Appendix C for environmental information.

A.6 Apparatus Between the Approved Apparatus and a
Digital Circuit (PTT)
If any apparatus, including cable or wiring, is to be connected between the
approved apparatus and the point of connection to any particular digital
circuit, all the other apparatus must conform as follows:
1. The overall transmission characteristics of all the other apparatus shall
be such as to introduce no material effect upon the electrical conditions
presented to one another by the apparatus and the particular digital
circuit.
2. All the other apparatus shall comprise only:
•

Apparatus approved (such apparatus may be subject to limitations on
its use) for the purpose of connection between the apparatus and a
particular digital circuit.

•

Cable or wiring complying with a code of practice for the installation of
apparatus covered by this standard or such other requirements as may
be applicable.

Regulatory Information for the UK A–5

A.6 Apparatus Between the Approved Apparatus and a Digital Circuit (PTT)

Figure A–1 System Module J-Connector Locations

J29

J31

J2
J55
J16
J33
J3

J4
J56
J5
J17

E22

J30

E35

J32

J54

E37
J6

J28

J57
J52
J53

WSMXP004

A–6 Regulatory Information for the UK

B
The Audio I/O Port and Multimedia
Along with the introduction of the Personal DECstation, Digital has introduced
a new line of TURBOchannel-based multimedia1 hardware options (called
DECmedia) and corresponding multimedia software products (called XMedia
Tools) which have been designed for use with the audio I/O port of the Personal
DECstation (standard with each system).
The Personal DECstation audio I/O port provides for recording and playback,
tone generation, or telephone-quality sound generation using a codec (encoder
/decoder) circuit.
The codec can process incoming audio data and store it on magnetic media.
Conversely, the codec can produce a modulated analog output signal from
voice-grade digital audio data stored on magnetic media or CD–ROM.
The analog audio input and output signals of the codec are connected to a
4-wire modular jack (visible on the rear panel), and the output signal also runs
to a small speaker within the system enclosure (not externally visible).
You may connect the 4-wire modular jack to any 4-wire modular jack telephone
handset or headset, though Digital recommends that, for the headset, you
order DEC part number VSXXX-JA.

In the workstation context, the term multimedia refers to a set of new technologies
that allow for the capture, manipulation, presentation, and integration of information
involving diverse, time-dependent data types such as animated graphics, audio,
scanned still images or video, as well as ordinary text or spreadsheet data. Existing
or anticipated multimedia configurations connect the workstation with various
sources and sinks of these data types: video cameras, tape recorders, laser disks,
analog audio circuits, digital audio recording equipment or musical instrument
interfaces, digital or analog telephone equipment, FAX, and other media.

The Audio I/O Port and Multimedia B–1

Note
The 4-wire modular jack is intended to be connected to either a headset
or a handset. It is not intended for connection to a telephone line cord.
However, you may attach it to a telephone receiver cord (the cord that
connects the receiver to the base of the telephone).

All audio I/O port capabilities require the use of the XMedia Tools version 1.1
(or greater) software. This kit allows application software to make use of the
I/O capability and also includes some sample audio applications.
XMedia Tools includes video as well as audio software. However, if you only
require audio capability, you can enable your audio hardware with XMedia
without requiring video hardware, just as you may enable video with XMedia
without requiring audio hardware.
In addition, several independent software vendors have announced application
and application-development products supporting DECmedia hardware and
making use of the XMedia Tools software.
For order information on multimedia kits, refer to Table B–1 and Table B–2.
Table B–1 XMedia (Software) Kits
Order Number

Description

QA-MB4AA-H5/CDC

XMedia Tools Software (TK50) - Includes both the
run-time kit and the developer kit software plus online
documentation.

QB-XUVAA-AA/CDC

XMedia Tools Developer Kit - For subscribers to the
ULTRIX software consolidated distribution CD–ROM.
Contains developer kit software licenses and a compact
disc of audio clip art.

QB-XUWAA-AA/CDC

XMedia Tools Full Developer Kit - For customers who
do not subscribe to the ULTRIX consolidated distribution
CD–ROM. Contains developer kit software licenses,
software and online documentation on a TK50 tape, and
a compact disc of audio clip art.

B–2 The Audio I/O Port and Multimedia

Note
All systems require the XMedia Run-time license and software to
operate audio applications.
The XMedia Tools Developer Kit and Run-time Kit require ULTRIX/
UWS V4.2-A and Motif 1.1. To use the online documentation,
Bookreader 2.0 is required. (The Bookreader license is included in the
ULTRIX/UWS license, and Bookreader documentation is included with
the ULTRIX/UWS media and documentation kit.)

Table B–2 DECmedia (Hardware) Kits
Order Number

Description

AV10A-AA

DECvideo/IN @ 66 Hz (TX + DECvideo/PIP). This is the
DECvideo/Picture-in-a-picture daughter card for the
DECstation 5000 TX frame buffer, with XMedia Tools Run-time
licenses.

AV10B-AA

DECvideo/IN @ 72 Hz (TX + DECvideo/PIP). This is the
DECvideo/Picture-in-a-picture daughter card for the
DECstation 5000 TX frame buffer, with XMedia Tools Run-time
licenses.

AV10U-DA

DECvideo/PIP (Upgrade from TX to DECvideo/IN)
– Includes option card for TX 24-plane color frame buffer,
attaches to TX TURBOchannel graphics card
– Provides live NTSC, PAL, or SECAM full-motion "video in a
window"
– Supports 8/24-bit access mode, scaling from 1:1 to icon,
graphics overlay, frame grabbing, clipping (X Windows)
– Includes XMedia Tools Run-time licenses required for operation

Note
Multimedia is memory-intensive: at least 16 MB is recommended for
video, 24 MB or more is required when it is necessary to capture video
frames, and 32 MB is suggested for applications combining audio and
video.

The Audio I/O Port and Multimedia B–3

C
Equipment Specifications
This appendix lists the physical specifications, operating conditions, and
nonoperating conditions for the following equipment:
•

Personal DECstation 5000 System Unit

•

RZ23L Hard Disk Drive

•

RZ24L Hard Disk Drive

•

RZ25 Hard Disk Drive

•

RZ26 Hard Disk Drive

•

RX26 Diskette Drive

Equipment Specifications C–1

C.1 Personal DECstation 5000 System Unit

C.1 Personal DECstation 5000 System Unit
Table C–1 System Unit Description
Weight

6.80 to 9.50 kg (15.00 to 21.00 lb)

Height

9.14 cm (3.60 in)

Width

40.64 cm (16.00 in)

Depth

43.18 cm (17.00 in)

Input voltage

Auto adjust 100–120 Vac or 220–240 Vac

Input current

1.6 A at 100–120 Vac
0.8 A at 220–240 Vac

Power
– Frequency

50 to 60 Hz

– Heat dissipation

123 , maximum

Table C–2 System Unit Operating Conditions
Temperature range1

10°C to 35°C (50°F to 95°F)

Temperature change rate

11°C (20°F) per hour, maximum

Relative humidity

10% to 90%, noncondensing

Maximum wet-bulb temperature

28°C (82°F)

Minimum dew-point temperature

2°C (36°F)

Altitude

2400 m (8000 ft) maximum

1 Reduce maximum temperature by 1.8°C for each 1000 meter (1.0°F for each 1000 ft) increase in
altitude.

C–2 Equipment Specifications

C.1 Personal DECstation 5000 System Unit

Table C–3 System Unit Nonoperating Conditions
Temperature range

40°C to 66°C ( 40°F to 151°F)

Relative humidity

5% to 95%, noncondensing

Maximum wet-bulb temperature

46°C (115°F), packaged

Altitude

4900 m (16,000 ft) maximum

Table C–4 Acoustics—Preliminary Declared Values per ISO 9296 and ISO
7779
LWAd

LpAm (operator position)

Idle

4.5 bels

36 dBA

Operating

4.5 bels

36 dBA

C.2 RZ23L Hard Disk Drive
Table C–5 RZ23L Hard Disk Drive Description
Internal drive
– Weight

0.54 kg (1.20 lb)

– Height

2.54 cm (1.00 in)

– Width

10.16 cm (4.00 in)

– Depth

14.61 cm (5.75 in)

Capacity
– Bytes per drive

121.65M

– Blocks per drive

237,588

– Block size

512 bytes

Data transfer rate
– Bus asynchronous mode

3.0 MB/s

– Bus synchronous mode

4.0 MB/s

– To and from media

1.5 MB/s

Seek time
(continued on next page)

Equipment Specifications C–3

C.2 RZ23L Hard Disk Drive

Table C–5 (Cont.) RZ23L Hard Disk Drive Description
– Track-to-track

8 ms

– Average

19 ms

– Maximum

35 ms

Average latency

8.8 ms

Interface

SCSI

Table C–6 RZ23L Hard Disk Drive Operating Conditions
Temperature range1

10°C to 55°C (50°F to 128°F)

Temperature change rate

11°C (20°F) per hour, maximum

Relative humidity

8% to 80% noncondensing

Maximum wet-bulb temperature

26°C (78°F)

Minimum dew-point temperature

2°C (36°F)

Altitude

300 to 4600 m ( 1000 to 15,000 ft)

1 Reduce maximum temperature by 1.8°C for each 1000 meter (1.0°F for each 1000 ft) increase in
altitude.

Table C–7 RZ23L Hard Disk Drive Nonoperating Conditions
Temperature range

40°C to 66°C ( 40°F to 151°F)

Temperature change rate

20°C (36°F) per hour, maximum

Relative humidity

8% to 95% packaged, noncondensing

Maximum wet-bulb temperature

46°C (115°F) packaged

Altitude

C–4 Equipment Specifications

300 to 12,200 m ( 1000 to 40,000 ft)

C.3 RZ24L Hard Disk Drive

C.3 RZ24L Hard Disk Drive
Table C–8 RZ24L Hard Disk Drive Description
Capacity
– Bytes per drive

245.4M

– Blocks per drive

479,350

– Block size

512 bytes

Data Transfer Rate
– Bus asynchronous mode

3.0 MB/s

– Bus synchronous mode

4.0 MB/s

– To and from media

1.5 MB/s

Seek time
– Track-to-track

5 ms

– Average

16 ms

– Maximum

35 ms

Average latency

8.3 ms

Interface

SCSI

Table C–9 RZ24L Hard Disk Drive Operating Conditions
Temperature range1

10°C to 55°C (50°F to 131°F)

Relative humidity

8% to 80% noncondensing

Maximum wet-bulb temperature

26°C (78°F)

Altitude

300 to 4600 m ( 1000 to 15,000 ft)

1 Reduce maximum temperature by 1.8°C for each 1000 meter (1.0°F for each 1000 ft) increase in
altitude.

Equipment Specifications C–5

C.3 RZ24L Hard Disk Drive

Table C–10 RZ24L Hard Disk Drive Nonoperating Conditions
Temperature range

40°C to 66°C ( 40°F to 151°F)

Relative humidity

8% to 95% packaged, noncondensing

Maximum wet-bulb temperature

46°C (115°F) packaged

Altitude

300 m to 12,200 m ( 1000 ft to 40,000 ft)

C.4 RZ25 Hard Disk Drive
Table C–11 RZ25 Hard Disk Drive Description
Internal drive
– Weight

0.82 kg (1.8 lb)

– Height

4.14 cm (1.63 in)

– Width

10.16 cm (4.00 in)

– Depth

14.61 cm (5.75 in)

Capacity
– Bytes per drive

426M

– Blocks per drive

832,527

– Block size

512 bytes

Data transfer rate
– Bus asynchronous mode

3.0 MB/s

– Bus synchronous mode

4.0 MB/s

– To and from media

2.1–3.2 MB/s

Seek time
– Track-to-track

2.5 ms

– Average

14 ms

– Maximum

26 ms

Average latency

6.8 ms

Interface

SCSI

C–6 Equipment Specifications

C.4 RZ25 Hard Disk Drive

Table C–12 RZ25 Hard Disk Drive Operating Conditions
Temperature range1

10°C to 55°C (50°F to 131°F)

Temperature change rate

11°C (20°F) per hour, maximum

Relative humidity

8% to 80% noncondensing

Maximum wet-bulb temperature

26°C (78°F)

Altitude

300 to 3050 m ( 1000 to 10,000 ft)

1 Reduce maximum temperature by 1.8°C for each 1000 meter (1.0°F for each 1000 ft) increase in
altitude.

Table C–13 RZ25 Hard Disk Drive Nonoperating Conditions
Temperature range

40°C to 66°C ( 40°F to 151°F)

Temperature change rate

20°C (36°F) per hour, maximum

Relative humidity

8% to 95% packaged, noncondensing

Maximum wet-bulb temperature

46°C (115°F) packaged

Altitude

300 m to 12,200 m ( 1000 ft to 40,000 ft)

C.5 RZ26 Hard Disk Drive
Table C–14 RZ26 Hard Disk Drive Specifications
Internal drive
– Weight

0.9 kg (1.9lb)

– Height

4.13 cm (1.625 in)

– Width

10.2 cm (4.00 in)

– Depth

14.6 cm (5.75 in)

Capacity
– Bytes per drive

1050M

– Bytes per surface

75M

– Bytes per track

29,640

– Buffer size

512 KB
(continued on next page)

Equipment Specifications C–7

C.5 RZ26 Hard Disk Drive

Table C–14 (Cont.) RZ26 Hard Disk Drive Specifications
Data transfer rate
– To and from media

2.6 MB/s

Seek time
– Track to track

1 ms

– Average

10 ms
20 ms

– Maximum (full stroke)
Average latency

5.6 ms

Rotational speed

5363 rpm

Table C–15 RZ26 Hard Disk Drive Operating Conditions
Ambient temperature

10°C to 50°C (50°F to 122°F)

Relative humidity

10%–90%

Table C–16 RZ26 Hard Disk Drive Nonoperating Conditions
Ambient temperature

–40°C to 66°C (–40°F to 151°F)

Relative humidity

8%–95% (non-condensing)

C–8 Equipment Specifications

C.6 RX26 Diskette Drive

C.6 RX26 Diskette Drive
Table C–17 RX26 Diskette Drive Specifications (formatted)
Dimensions
– Weight

425 g (0.94 lb)

– Height

25.4 mm (1.00 in)

– Width

101.6 mm (4.00 in)

– Depth

150.0 mm (5.91 in)

Number of cyclinders

Number of heads

Track density

135 tracks per inch

Diskette size

8.89 cm (3.50 in)

Recording surfaces per diskette

MFM data bit rate

250, 500, 1000 kHz

Sectors per track

9 double-density
18 high-density
36 extra-density

Capacity

2.88 KB

– Bytes per drive

737,280 double-density
1,474,560 high-density
2,949,120 extra-density

– Bytes per track

4608 double-density
9216 high-density
18,432 extra-density

Data transfer rate

250 Kbits/s double-density
500 Kbits/s high-density
1000 Kbits/s extra-density

Seek time
– Minimum

3 ms

– Average

15 ms

Average latency

100 ms
(continued on next page)

Equipment Specifications C–9

C.6 RX26 Diskette Drive

Table C–17 (Cont.) RX26 Diskette Drive Specifications (formatted)
Operating power

1.25 W (read/write)
4.60 W (seeking)

Standby power

0.30 W

Table C–18 RX26 Diskette Drive Operating Conditions
Temperature range1

°5C to 50°C (41°F to 122°F)

Temperature change rate

11°C (20°F) per hour, maximum

Relative humidity

8% to 80%, noncondensing

Maximum wet-bulb temperature

25.6°C (78°F)

Altitude

–305 to 3050 m (–1000 to 10,000 ft)
maximum

1 Reduce maximum temperature by 1.8°C for each 1000 meter (1.0°F for each 1000 ft.) increase in
altitude.

Table C–19 RX26 Diskette Drive Nonoperating Conditions
Temperature range

–40°C to 66°C (–40°F to 151°F))

Relative humidity

5% to 95%, noncondensing

Maximum wet-bulb temperature

46°C (115°F), packaged

Altitude

–305 to 12,200 m (–1000 to 40,000 ft)
maximum

C–10 Equipment Specifications

D
Connector Pin Assignments
This appendix lists pin assignments for the following:
•

SCSI Connector

•

ThickWire Ethernet Connector

•

EIA RS232 Communications Connectors

•

Power Supply

•

ISDN Connector

•

ACCESS.bus

•

Sound Connector

•

Loopback Connector

D.1 SCSI Connector
Table D–1 SCSI Connector Pin Assignments
Pin

Signal

I/O

GND

REQ

GND

C/D

GND

SEL

GND

MSG

GND

RST

GND

ACK

GND
(continued on next page)

Connector Pin Assignments D–1

D.1 SCSI Connector

Table D–1 (Cont.) SCSI Connector Pin Assignments
Pin

Signal

BSY

GND

RSVD

TERMPWR

RSVD

GND

ATN

PARITY

GND

DATA<7>

GND

DATA<6>

GND

DATA<5>

GND

DATA<4>

GND

DATA<3>

GND

DATA<2>

GND

DATA<1>

GND

DATA<0>

GND

D–2 Connector Pin Assignments

D.2 ThickWire Ethernet Connector

D.2 ThickWire Ethernet Connector
Table D–2 ThickWire Ethernet Connector Pin Assignments
Pin

Source

Signal

XCVR

ACOL+

Collision presence

KNO2

ATX+

Transmission

GND

Ground

Description
Shield

XCVR

ARX+

Reception

XCVR

GND

Power return

CTL+

Control output

GND

Ground

XCVR

ACOL–

Collision presence

KNO2

ATX–

Transmission

GND

Ground

XCVR

ARX–

Reception

KNO2

+12V

Power

GND

Ground

CTL–

Control output

Connector Pin Assignments D–3

D.3 EIA RS232 Communications Connectors

D.3 EIA RS232 Communications Connectors
Data Terminal Equipment (DTE) refers to signals whose source is in the
Personal DECstation.
Data Communications Equipment (DCE) refers to signals whose source is a
peripheral, like a modem or printer, which is attached to the system.
Table D–3 EIA RS232 Communications Connectors Pin Assignments
Pin

Source

Signal

CCITT1

EIA2

Description

GND

101

Protective ground

DTE

TxD

103

Transmitted data

DCE

RxD

104

Received data

DTE

RTS

105

Request to send

DCE

CTS

106

Clear to send

DCE

DSR

107

Data set ready

GND

102

Signal ground

109

Carrier detect

7
8

DCE

Unconnected

11
12

Unconnected
DCE

SPDMI

112

Speed mode indicator

Unconnected

DCE

TxClock

114

16
17

Transmit signal element timing
Unconnected

DCE

RxClock

115

Receive signal element timing

Unconnected

DTE

DTR

108.2

Data terminal ready
Unconnected

1 Comite Consultatif International Telegraphique et Telephonique, an international consultative
committee that sets international communications standards
2 Electronic Industries Association

(continued on next page)

D–4 Connector Pin Assignments

D.3 EIA RS232 Communications Connectors

Table D–3 (Cont.) EIA RS232 Communications Connectors Pin Assignments
Pin

Source

Signal

CCITT1

EIA2

Description

DCE

125

Ring indicator

DTE

DSRS

111

Data signal rate select

Unconnected

1 Comite Consultatif International Telegraphique et Telephonique, an international consultative
committee that sets international communications standards
2 Electronic Industries Association

D.4 Power Supply
Table D–4 Power Supply Pin Assignments
Pin

Signal

Speaker [1]

DCOK

+5.1 V

GND

+5.1 V

GND

+12.1 V

Speaker [2]

System-OK LED

GND

+5.1 V

GND

+5.1 V

GND

Connector Pin Assignments D–5

D.5 ISDN Connector

D.5 ISDN Connector
The external ISDN connector is an 8-wire Modular Jack (RJ45). Pins 1,
2, 7, and 8 are not used. A 4-wire cable with 2 twisted pairs would be
connected from this jack to an ISDN NT or PAXB card for ISDN voice and data
connections. Table D–5 shows a pinout for the ISDN connector.
Table D–5 ISDN Connector
Pin

Signal

Function

No connection

LOUT1

Line output (–)

LIN1

Line input (–)

LIN2

Line input (+)

LOUT2

Line output (+)

No connection

D.6 ACCESS.bus
The ACCESS.bus uses a 4-pin shielded MOLEX SEMCONN or AMP SDL
modular type connector. The MOLEX version will be unkeyed. The AMP
version will have key ‘‘D.’’ This provides compatibility between the AMP and
MOLEX part.
Data and power for the ACCESS.bus are transferred over low-capacitance,
4-wire shielded cable. The four conductors are used for: GND, SDA, SCL,
and +12V (pins 1 through 4, respectively). Capacitance of the SCL and SDA
conductors shall be less than 70pF/m (capacitance between one conductor and
other conductors connected to shield). The A.b connector is located at the rear
of the system enclosure and mounts to the base system module. Table D–6
shows the pinout for the ACCESS.bus.

D–6 Connector Pin Assignments

D.6 ACCESS.bus

Table D–6 ACCESS.bus Pin Assignments
Pin

Signal

Function

GND

Ground

SDA

Serial data

SCL

Serial clock

+12 V

+12 volts

D.7 Sound Connector
A 4-wire Modular Jack is provided for connection to an external telephone
handset or headset. Note that a telephone should not be connected to this jack.
The connection is intended for the external speaker and microphone in the
headset. The headset or handset are connected to the sound jack with a 4-wire
cable with 2 twisted pairs. Table D–7 shows the pinout for the sound jack.
Table D–7 Sound Connector
Pin

Signal

Function

Audio In 1

Audio input

Audio Out 1

Audio output (+)

Audio Out 2

Audio output (–)

Audio in 2

Audio Input ground

D.8 Loopback Connector
Table D–8 Summary of Loopback Connectors
Standard/
Unique

Part Number

Option Number

Communications loopback
connector

Standard

12-15336-13

H3200

ThickWire loopback connector

Standard

12-22196-02

ThinWire T-connector

Standard

12-25869-01

H8223

ThinWire terminator

Standard

12-26318-01

H8225

Function

Connector Pin Assignments D–7

D.8 Loopback Connector

Table D–9 Ethernet Loopback Connector Pin Assignments
From
Pin No.

Signal

To
Pin No.

Signal

Description

P6-3

TRA+

P6-5

REC+

Through capacitor

P6-10

TRA–

P6-12

REC–

Through capacitor

P6-13

PWR

P6-6

RET

Through resistor and LED

Table D–10 Modem Loopback Connector Pin Assignments
From
Pin No.

Signal

To
Pin No.

Signal

P4-2

TX2

P4-3

RX2

P4-4

RTS2

P4-5

CTS2

P4-6

DSR2

P4-20

DTR2

P4-12

SPDMI2

P4-23

DSRS2

P4-18

LLPBK2

P4-8

CI2

P4-18

LLPBK2

P4-22

RI2

P4-18

LLPBK2

P4-25

TMI2

D–8 Connector Pin Assignments

E
Drives You Can Connect to Your
Workstation
The following list includes drives available at the time this guide was printed.
However, Digital continues to produce new drives to cover a complete range of
computing needs. For information about drives that may not be included on
this list, please contact your Digital sales representative.
•

In the SZ12 expansion box
Floppy disk drives
RX23 (1.4 megabytes)
RX33 (1.2 megabytes)
3 21 -inch hard disk drive
RZ25 (426 megabytes)
RZ26 (1.05 gigabytes)
5 41 -inch hard disk drives
RZ58 (1.4 gigabytes)
Tape drives
TZ30 (95 megabytes)
TZK10 (525 megabytes)
CD–ROM drive
RRD42 (600 megabytes)

•

In the TURBOchannel extender box
Floppy disk drive
RX23 (1.4 megabytes)
3 21 -inch hard disk drives
RZ23L (121 megabytes)

Drives You Can Connect to Your Workstation E–1

RZ24 (209 megabytes)
RZ25 (426 megabytes)
RZ26 (1.05 gigabytes)
Tape drive
TZK10 (525 megabytes)
CD–ROM drive
RRD42 (600 megabytes)
•

Tabletop drives
Tape drives
TK50Z (95 megabytes)
TLZ04 (1.2 gigabytes, RDAT tape)
TLZ06 (4.0 gigabytes, RDAT tape)
TKZ08 (2.2 gigabytes, 8-mm tape)
TKZ09 (5.0 gigabytes, 8-mm tape)
CD–ROM drive
RRD42 (600 megabytes)

E–2 Drives You Can Connect to Your Workstation

Index
A
ACCESS.bus
pin assignments, D–6
Adapter
for ThinWire Ethernet, 5–6
for Twisted-Pair Ethernet, 5–13
Alternate terminal settings, 8–3
Antistatic wrist strap
attaching (fig.), 9–3
Audio I/O port
multimedia, B–1

B
Base system
diagnostic tests for, 14–4
Basic system (fig.), 1–2
Button box, 1–13

C
Cables
10-foot color video, 1–8
Clearance/creepage specs
for United Kingdom, A–4
cnfg 3 command, 6–4, 13–9
cnfg command, 3–4, 6–12, 13–9
cnfg display
line definitions, 13–10
? command
format, 13–7
Communication devices
connecting, 7–1

Configuration test, 3–3
Connector pin assignments, D–1 to D–7
Console commands
conventions, 13–3
description of common (tab.), 13–6
entering values in, 13–3
terms, 13–4
Console mode
tasks, 13–1
Console prompts, 3–2
Console terminal
alternate settings, 8–3
default settings, 8–4
installing (fig.), 8–2
Controller
definition of, 13–4
CPU modules
heat sinks, 12–3
installing, 12–4
removing, 12–1
testing, 12–8

D
d command, 13–12
Data sizes
memory, 13–3
DECaudio
memory recommendation, B–3
DECmedia
hardware kits (tab.), B–3
DECvideo
memory recommendation, B–3
Diagnostic LED
interpreting, 14–9

Index–1

Diagnostic LED (cont’d)
when inactive, 14–10
Diagnostic tests
for base system, 14–4
Dial box, 1–13
Disk drives
external, 6–1
internal, 10–1
supported by Digital, E–1

E
Electrical
interference, 2–2
Equipment specifications
See Specifications
erl command, 13–12
Error messages
interpreting, 14–3
Ethernet connector
pin assignments, D–3
Ethernet loopback connector
pin assignments, D–7
Ethernet network
address, 5–15
completing connection, 5–15
diagnostics, 14–2
finding station address, 5–15
ThickWire, 5–4
ThinWire, 5–6
Twisted-Pair, 5–10
Expansion boxes
chain of, 6–9
connecting, 6–6

F
Floppy disk drive
checking the select number, 10–2
installing, 10–2
mounting bracket for, 10–3
removing, 10–7

Index–2

G
go command, 13–13

H
Hard disk drive
installing, 10–16
removing, 10–20
Hardware specifications
See Specifications
Heat sinks
on CPU modules, 12–3
Host approvals
for United Kingdom, A–4
Host power rating, A–5

I
Icons
on the system unit, 1–4
Indicator light
on monitor, 3–1
on system unit, 3–1
init command, 13–13
Interference
electrical, 2–2
Internal disk drives, 10–1, E–1

K
Keyboard, 1–9
cables for, 1–12
connecting, 1–10

L
LED (indicator light), 1–3
Log-in screen, 3–5
Loopback connector, 5–2
to install, 5–3
ls command, 13–13

M
Memory
data sizes, 13–3
Memory modules
adding, 11–5
differentiating, 11–2
removing, 11–8
Minimal system
used for testing, 14–5
Modem loopback connector
pin assignments, D–8
Module codes (tab.), 13–11
Monitor
cables for, 1–8
connecting, 1–5
connecting to TURBOchannel option
module, 1–9
position of, 1–2
Mouse
figure of, 1–12
Multimedia
audio I/O port, B–1
kits, B–2

Pin assignments (cont’d)
I/O cover SCSI cable, D–1
modem loopback connector, D–8
printer/communications connector, D–4
printer/console loopback connector, D–5
sound connector pin assignments, D–7
summary of loopback connections, D–7
ThickWire Ethernet connector, D–3
Power cord, 1–13
Power-up
LED sequence, 14–7
Power-up indicator light, 1–3
Power-up self-test, 3–2
invoking, 14–2
printenv command, 13–14
Printer/communications connector
pin assignments, D–4
Printer/console loopback connector
pin assignments, D–5

On/Off switch, 1–4, 3–1
Operating mode
tasks, 13–1

restart command, 13–15
RX26 diskette drive
specifications, C–7
RZ23L hard disk drive
SCSI ID settings, 10–10
specifications for, C–3
RZ24L hard disk drive
SCSI ID settings, 10–11
specifications, C–5
RZ25 hard disk drive
SCSI ID settings, 10–12
specifications, C–6
RZ26 hard disk drive
SCSI ID settings, 10–15
specifications for, C–7

passwd command, 13–14
Password
for restricted mode, 3–2
Pin assignments
ACCESS.bus, D–6
Ethernet loopback connector, D–7

Script
definition of, 13–5
script command, 13–15
SCSI connector, 6–3
pin assignments, D–1

N
Networks
See Ethernet networks
and TURBOchannel modules, 5–4

Index–3

SCSI devices, 6–1
codes for (tab.), 13–11
guidelines for connecting, 6–3
linking, 6–8
verifying, 6–12
SCSI IDs
changing, 6–6
factory assigned, 6–4
for devices on TURBOchannel, 6–6
setting
for RZ23L hard disk drive, 10–10
for RZ24L hard disk drive, 10–11
for RZ25 hard disk drive, 10–12
for RZ26 hard disk drive, 10–15
verifying, 6–4
Server configuration, 8–1
halting, 8–3
Service requirements
for United Kingdom, A–2
setenv command, 13–15
sh command, 13–17
Site requirements, 2–1
Slot
definition of, 13–5
Software
booting factory installed, 3–4
halting, 13–2
shutting down, 9–1
Sound connector
pin assignments, D–7
Specifications
RX26 diskette drive, C–7
RZ23L hard disk drive, C–3
RZ24L hard disk drive, C–5
RZ25 hard disk drive, C–6
RZ26 hard disk drive, C–7
system unit, C–2
Static electricity
preventing damage from, 9–3
Storage devices
connecting, 6–1
Superuser mode, 13–2
accessing, 9–1
System module J-connectors
location of (fig.), A–6

Index–4

System self-test, 3–2, 5–2
System unit
back of (fig.), 1–4
closing, 9–4
front of (fig.), 1–3
icons on, 1–4
memory configurations, 11–5
opening, 9–1
specifications for, C–2
turning off, 3–5
turning on, 3–1

T
t command, 13–18
Tape drives
available, E–2
Terminal
alternate settings, 8–3
Test
for configuration, 3–3
test command, 13–18
ThickWire Ethernet, 5–4
ThinWire Ethernet, 5–6
Troubleshooting
with alternate video, 14–1
with system LED, 14–2
TURBOchannel
extender box, 6–3
SCSI adapter, 6–3
TURBOchannel extender box, 6–8
TURBOchannel modules
connecting monitors to, 1–9
identification codes for, 14–4
used to connect to additional networks,
5–4
Twisted-Pair Ethernet, 5–10

U
United Kingdom
information required for, A–2
unsetenv command, 13–18

dismantling, 4–1
increasing memory, 11–5
turning off, 3–5

V
Voltage, 2–3

W
Workstation

X
XMedia
software kits (tab.), B–2

Index–5

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Personal DECstation 5000 Model 50
Operator’s Guide
EK–4MAXI–OP. A01

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