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EK-4410M-IN-001

December 1991

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Document:	Rack-Mountable VAX 4000 Model 500 Inst./Operator's Manual
Order Number:	EK-4410M-IN
Revision:	001
Pages:	130
Original Filename:

OCR Text

Rack-Mountable VAX
4000 Model 500
Installation/Operator’s
Manual
Order Number EK-4410M-IN-001

Digital Equipment Corporation
Maynard, Massachusetts

December 1991

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 following are trademarks of Digital Equipment Corporation.
DEC

PDP

VAX

Q–bus

DSSI

ThinWire

LPV11–SA

KDA

KLESI

KRQ50

DECnet

VAXELN

VAXcluster

DESTA

TQK

TS05

KXS11

DEMPR

DELNI

MicroVAX

DIGITAL logo

This document was prepared using VAX DOCUMENT, Version 2.0.

Contents
Preface

Chapter 1 System Overview
1.1
1.2

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1
Major Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
1.2.1
Front Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
1.2.1.1
Mass Storage Shelf . . . . . . . . . . . . . . . . . . . . . . . 1–5
1.2.1.2
System Control Panel . . . . . . . . . . . . . . . . . . . . . 1–6
1.2.1.3
System ON/OFF Switch . . . . . . . . . . . . . . . . . . . 1–10
1.2.2
Card Cage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–10
1.2.2.1
Memory Modules . . . . . . . . . . . . . . . . . . . . . . . . 1–10
1.2.2.2
CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–10
1.2.2.3
Q–bus Option Modules . . . . . . . . . . . . . . . . . . . . 1–10
1.2.2.4
Console Bulkhead Assembly . . . . . . . . . . . . . . . 1–13
1.2.3
DSSI and SCSI Connectors (DSSI Bus 0; SCSI Bus
0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–17
1.2.4
Power Supply Controls and Indicators . . . . . . . . . . . . . . 1–19
1.2.5
Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–23

iii

Chapter 2 Installation
2.1
2.2
2.3
2.4

2.5
2.6

2.7

Verifying Site Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Checking the Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Installing the Rack-Mountable VAX 4000 Model 500 . . . . . . . . . . . 2–6
2.4.1
Installing Equipment Slides . . . . . . . . . . . . . . . . . . . . . . . 2–6
2.4.2
Attaching Chassis Mounting Brackets . . . . . . . . . . . . . . 2–12
2.4.3
Mounting Chassis on Equipment Slides . . . . . . . . . . . . . 2–14
2.4.4
Installing the Cable Management Bracket . . . . . . . . . . . 2–15
2.4.5
Installing the Cable Tie Bracket . . . . . . . . . . . . . . . . . . 2–15
Setting System Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–17
Connecting Additional Devices to the System . . . . . . . . . . . . . . . 2–23
2.6.1
Connecting Terminals and Serial Printers . . . . . . . . . . . 2–26
2.6.2
Connecting Parallel Printers . . . . . . . . . . . . . . . . . . . . . 2–32
2.6.3
Connecting Synchronous Modems . . . . . . . . . . . . . . . . . 2–34
2.6.4
Connecting Asynchronous Modems . . . . . . . . . . . . . . . . 2–37
2.6.5
Connecting to an Ethernet Network at the Console Bulkhead
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–40
2.6.5.1
Making a ThinWire Network Connection at the
Console Bulkhead Assembly . . . . . . . . . . . . . . . 2–42
2.6.5.2
Making a Standard Network Connection at the
Console Bulkhead Assembly . . . . . . . . . . . . . . . 2–46
2.6.6
Connecting to an Ethernet Network at the DESQA
Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–49
2.6.6.1
Making a ThinWire Network Connection at the
DESQA Module . . . . . . . . . . . . . . . . . . . . . . . . . 2–49
2.6.6.2
Making a Standard Network Connection at the
DESQA Module . . . . . . . . . . . . . . . . . . . . . . . . . 2–55
2.6.7
Connecting an Embedded TLZ-Series Tape Drive . . . . . 2–58
2.6.8
Installing the R400X Expander . . . . . . . . . . . . . . . . . . . 2–60
Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–60
2.7.1
Connecting the Q–bus Cables . . . . . . . . . . . . . . . . . . . . 2–60
2.7.2
Connecting the DSSI Cable . . . . . . . . . . . . . . . . . . . . . . 2–62
2.7.3
Connecting the KZQSA External Cable . . . . . . . . . . . . . 2–64
2.7.4
Connecting the Power Control Bus Cable . . . . . . . . . . . 2–66
2.7.5
Connecting the Ground Cable . . . . . . . . . . . . . . . . . . . . 2–68
iv

2.8

2.7.6
Connecting the System Power Cable . . . . . . . . . . . . . . . 2–70
Completing Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–74
2.8.1
Turn on the System and Select a Language . . . . . . . . . . 2–74
2.8.2
After Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–78

Chapter 3 Maintenance
3.1
3.2

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–1
Removal/Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . 3–1
3.2.1
ON/OFF Switch Assembly . . . . . . . . . . . . . . . . . . . . . . . . 3–2
3.2.2
Storage Backplane Assembly . . . . . . . . . . . . . . . . . . . . . . 3–4
3.2.3
Power Card Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 3–10
3.2.4
Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–12
3.2.5
Equipment Slides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–14

Figures
1–1
1–2
1–3
1–4
1–5
1–6
1–7
1–8
1–9
1–10
1–11
2–1
2–2
2–3
2–4
2–5
2–6
2–7

The BA441 Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
Dimensions of the BA441 Enclosure . . . . . . . . . . . . . . . . . 1–4
Mass Storage Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
System Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–7
Console Bulkhead Controls . . . . . . . . . . . . . . . . . . . . . . . . 1–9
Card Cage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–11
Q–bus Option Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–12
Console Bulkhead Assembly Controls, Indicators, and
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–14
Connectors for DSSI Bus 0 and SCSI Bus 0 . . . . . . . . . . 1–18
Power Supply Controls and Indicators . . . . . . . . . . . . . . . 1–20
System Air Circulation . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–24
Shipping Carton Contents . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
Equipment Slide Assembly . . . . . . . . . . . . . . . . . . . . . . . . 2–8
Installation Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–9
Installing the Slides to the Cabinet Rails . . . . . . . . . . . . 2–11
Mounting the Chassis on Equipment Slides . . . . . . . . . . . 2–13
Installing the Cable Management Bracket . . . . . . . . . . . . 2–16
Rack-Mountable VAX 4000 Model 500 Controls and
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–18
v

2–8
2–9
2–10
2–11
2–12
2–13
2–14
2–15
2–16
2–17
2–18
2–19
2–20
2–21
2–22
2–23
2–24
2–25
2–26
2–27
2–28
2–29
2–30
2–31
2–32
2–33
2–34
2–35
2–36
2–37
2–38
2–39

TF-Series Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–19
TK Series Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–20
TLZ-Series Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–21
Setting Controls on the Console Bulkhead Assembly . . . . 2–23
BCD16 Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–27
CXA16 Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–28
Cable Concentrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–29
Connecting to the Cable Concentrator . . . . . . . . . . . . . . . 2–30
Mounting the Cable Concentrator on the Wall . . . . . . . . . 2–31
BCL27L–30 Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–32
LPV11 Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–33
DSV11 Module Connection . . . . . . . . . . . . . . . . . . . . . . . . 2–35
Protocol Adapter Cable Pairs . . . . . . . . . . . . . . . . . . . . . . 2–36
BC19N-12 Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–37
CXY08 Module Connector . . . . . . . . . . . . . . . . . . . . . . . . 2–38
BC22F Extension Cable . . . . . . . . . . . . . . . . . . . . . . . . . . 2–39
Console Connector Panel Ethernet Switch . . . . . . . . . . . . 2–41
ThinWire Cable, T-Connector, and Terminator . . . . . . . . . 2–42
Making a ThinWire Ethernet Connection at the Console
Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–43
Form the Forward Cable in a Loop at the Console Module2–44
Grounding ThinWire Ethernet at the Console Bulkhead
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–46
Ethernet Transceiver Cable . . . . . . . . . . . . . . . . . . . . . . . 2–47
Making a Standard Ethernet Connection at the Console
Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–48
DESQA ThinWire/Standard Ethernet Connector Switch . 2–50
ThinWire Cable, T-Connector, and Terminator . . . . . . . . . 2–51
Making a ThinWire Ethernet Connection at the DESQA
Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–52
Form the Upper Cable in a Loop at the DESQA Module . 2–54
Grounding ThinWire Ethernet at the DESQA Module . . . 2–55
Ethernet Transceiver Cable . . . . . . . . . . . . . . . . . . . . . . . 2–56
Making a Standard Ethernet Connection at the DESQA
Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–57
KZQSA In Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–58
KZQSA Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–59
vi

2–40
2–41
2–42
2–43
2–44
2–45
2–46
2–47
2–48
2–49
2–50
2–51
2–52
3–1
3–2
3–3
3–4
3–5
3–6

Q–bus Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . 2–61
DSSI Connector Terminator . . . . . . . . . . . . . . . . . . . . . . . 2–63
Connecting the DSSI Cable . . . . . . . . . . . . . . . . . . . . . . . 2–64
KZQSA Module Terminator . . . . . . . . . . . . . . . . . . . . . . . 2–65
Connecting the Power Control Bus Cable . . . . . . . . . . . . 2–67
Sample Power Bus Configuration . . . . . . . . . . . . . . . . . . . 2–68
Ground Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–69
Setting the Power Switch to OFF . . . . . . . . . . . . . . . . . . . 2–71
Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–72
Attaching Power Cable to the System . . . . . . . . . . . . . . . 2–73
Language Selection Menu . . . . . . . . . . . . . . . . . . . . . . . . 2–75
Successful Power-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–76
Saving the Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–77
ON/OFF Switch Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 3–3
Removing the ISE Devices . . . . . . . . . . . . . . . . . . . . . . . . . 3–5
Storage Backplane Assembly Showing the DSSI, SCSI and
Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–7
Backplane Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–9
Power Card Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–11
Fan Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–13

Tables
2–1
2–2

Mounting Hardware (P/N 7028616-01) . . . . . . . . . . . . . . . . 2–3
Module Identification Numbers . . . . . . . . . . . . . . . . . . . . 2–24

vii

Preface

This manual provides information to Digital Customer Service personnel
and customer maintenance personnel for installing the Rack-Mountable
VAX 4000 Model 500 Computer System.
Before installing this system, review the system warranty. The terms of
the warranty agreement with Digital may require that a qualified Digital
Customer Service representative install the system. Contact your local
Digital representative if you have any questions.
The audience for this book is the customer who is familiar with computer
hardware, familiar with operating systems, and experienced and trained
in using installation manuals.

Organization
The Rack-Mountable VAX 4000 Model 500 Installation/Operator’s Manual
is organized in the following manner:
Chapter 1, System Overview - Contains an overview of the RackMountable VAX 4000 Model 500 computer system’s physical description,
the major assemblies, and the controls and indicators.
Chapter 2, Installation - Contains procedures for preparing the site,
unpacking and checking the shipment, installing the equipment in the
enclosure, setting system controls, connecting additional devices, cabling,
connecting power, turning on the system, and selecting a language.

Chapter 3, Maintenance Procedures - Contains maintenance and
field replaceable unit (FRU) procedures unique to the Rack-Mountable
VAX 4000 Model 500.

Related Documentation
Title

Order Number

VAX 4000 Model 500 Installation

EK–4410M–IN1

VAX 4000 Model 500 Documentation Kit

QZ–K42AA–GZ1

VAX 4000 Troubleshooting and Diagnostics

EK–386AA–TS

KA680 CPU System Maintenance

EK–454AA–MG

KA680 CPU Module Technical Manual

EK–KA680–TM

Overview of VMS Documentation

AA–LA95A–TE

VMS VAXcluster Manual

AA–LA27A–TE

VMS Networking Manual

AA–LA48A–TE

Guide to DECnet–VAX Networking

AA–LA47A–TE

VMS Installation and Operations

AA–LB35B–TE

VAXELN Host System Guide

AA–JG87B–TE

VAXELN Run-Time Facilities Guide

AA–JM81B–TE

VAX/VMS Backup Utility Reference Manual

AA–Z407B–TE

Guide to VAX/VMS Disk and Magnetic Tape
Operations

AI–Y506B–TE

VAX/VMS Mount Utility Reference Manual

AA–Z424A–TE

VMS Factory Installed Software User Guide

EK–A0377–UG1

R400X Expander Installation

EK-R400X-CM

1 This manual is included in your shipment.

Documentation specific to supported options is listed with the option in
the VAX 4000 Model 500 Technical Information manual.

Conventions
The following conventions are used in this manual:
Convention

Meaning

key

This symbol denotes a terminal key used in text and
examples in this book. For example, Break indicates that
you press the Break key on the terminal keypad. Return
indicates that you press the Return key on the terminal
keypad.

BOLD

Bold type indicates user input. For example:

>>> BOOT MUAO
This line shows that the user must enter BOOT MUAO at
the console bulkhead assembly.
NOTE

A note calls the reader’s attention to any item of
information that may be of special importance.

CAUTION

A caution contains information essential to avoid damage to
the system.

WARNING

A warning contains information essential to the safety of
personnel.

The following symbols appear on the power supply. Please review their
definitions below:
This Dangerous Voltage warning symbol indicates risk
of electric shock and indicates hazards from dangerous
voltage.
This Attention symbol is used to alert the reader about
specific safety conditions, and to instruct the reader to
read separate instructional material.

Warning
To reduce the risk of injury, do not remove modules,
integrated storage equipment (ISEs), or the power supply. No user-serviceable parts are inside. Refer servicing

questions to your Digital Customer Services representative or to your qualified self-maintenance personnel.
This equipment is not designed for connection to an
IT power system (a power system without a directly
grounded neutral conductor).
This equipment should be plugged into a properly
grounded receptacle only.
This system contains an automatic voltage select power
supply. Voltage selection is not required prior to installation.

CAUTION
Before installing a Digital system, review the system
warranty. The terms of your warranty agreement with
Digital may require that a qualified Digital service representative install your system. Contact your local Digital
representative if you have any questions.

NOTE
If you are installing an R400X expander with your VAX
4000 Model 500 system, use this manual to install your
VAX 4000 Model 500 and the R400X Expander Installation
manual to install the R400X expander.
Server systems offer maximum performance for nontimesharing applications. Some of the devices referred
to in this manual are designed for multiuser systems
and may not be suitable for server systems. Contact
your Digital representative if you have any questions on
whether use of a specific device is appropriate for your
server system.
A glossary is available in the VAX 4000 Model 500 Operation manual.

xii

xiii

Chapter 1
System Overview
1.1 Introduction
This chapter presents an overview of the Rack-Mountable VAX 4000
Model 500 computer system.
The Rack-Mountable VAX 4000 Model 500 computer system (see Figure 1–1) houses all components in a BA441 enclosure. Figure 1–2 shows
the dimensions of the enclosure. This enclosure is a slide mounted chassis that fits into a standard 48.26-cm (19-inch) EIA enclosure and houses
the following major units:
•

Front Assemblies
— Mass storage shelf
— System control panel (SCP)
— System ON/OFF switch

•

Card cage
— DSSI and Small Computer System Interface (SCSI) connectors
— Console bulkhead assembly
— Central processing unit (CPU) module
— Memory modules

System Overview 1–1

•

Power supply

•

Fans

Your BA441 enclosure containing the Rack-Mountable VAX 4000 Model
500 computer system can also contain the following options:
•

Communications controller modules

•

RF-series integrated storage equipment (ISE)

•

Tape drive controller module

•

TK50, TK70, or TF85 tape drive

Up to four RF-series ISEs or up to three RF-series ISEs and a tape drive
can be mounted inside the BA441 enclosure.

1–2 System Overview

Figure 1–1: The BA441 Enclosure

System Overview 1–3

Figure 1–2: Dimensions of the BA441 Enclosure

1–4 System Overview

1.2 Major Units
The following subsections describe the major units of the VAX 4000 Model
500 system and their functions. A full description on how to use the
system and options can be found in the VAX 4000 Model 500 Operation
manual.

1.2.1 Front Assemblies
The functions of the front assemblies of the VAX 4000 Model 500 are
described in the following sections.
1.2.1.1 Mass Storage Shelf
The mass storage shelf (see Figure 1–3) extends across the front of the
enclosure. The shelf can contain an optional TK50, TK70 or TF85 tape
drive with up to three RF-series ISEs. Tapeless systems can have up
to four RF-series ISEs. Each ISE has its own panel with controls and
indicators. Instructions for using ISEs and the tape drive can be found
in the VAX 4000 Model 500 Operation manual.

System Overview 1–5

Figure 1–3: Mass Storage Shelf

1.2.1.2 System Control Panel
The SCP is to the left of the storage devices (see Figure 1–3). The
SCP has two indicators (see Figure 1–4): the dc ok light and the overtemperature warning light. The green dc ok light indicates that the
power supply voltages are within the correct operating range. If the
dc ok light is not lit when the system power is on, check the system
ON/OFF switch on the front bezel (refer to Section 1.2.1.3), the circuit

1–6 System Overview

breaker on the power supply and the power cord, then refer to the VAX
4000 Troubleshooting and Diagnostics manual.
Figure 1–4: System Control Panel

The red over-temperature indicator flashes when the internal temperature approaches a level that may cause system components to overheat.
An audible alarm also provides a warning of a possible over-temperature
condition. If the components continue to heat, the system automatically
shuts down to prevent component damage. Instructions for turning on
the system after a preventive shutdown due to overheat conditions are
covered in the VAX 4000 Model 500 Operation manual.
Below the indicators are the Halt and Restart/Run buttons. The Halt
button is a two-position button. When you press the button, the system
halts. A red indicator on the Halt button lights when the button is set to
the in position. Before you can enter console commands, press the Halt
button again to return it to the out position. When the Halt button is
returned to the out position, the console mode prompt >>> is displayed
System Overview 1–7

on the console terminal screen. Now you can enter console commands. If
you inadvertently press the Halt button, type c Return to continue. The
VAX 4000 Model 500 Operation manual describes halting the system in
more detail.
CAUTION
Pressing the Halt button halts the system regardless of
the setting of the break enable/disable switch on the
console bulkhead assembly.

Below the Halt button is the Restart/Run button. The Restart/Run
button has a green indicator. When you press the Restart/Run button,
the system returns to a power-on condition and self-tests are run. If
you have a boot device and if the | /O (break/enable disable) switch (see
Figure 1–5) is set to O (disable), the system will reboot system software.
Further instructions on restarting your system are contained in the VAX
4000 Model 500 Operation manual.
NOTE
The Halt and Restart/Run buttons can be disabled to prevent accidental activation. Contact your Digital service
representative if you want to disable the controls on the
SCP.

1–8 System Overview

Figure 1–5: Console Bulkhead Controls

System Overview 1–9

1.2.1.3 System ON/OFF Switch
The main system ON/OFF switch is located in the upper left-hand corner
of the front panel (see Figure 1–3). This switch is the power switch for
the entire system.

1.2.2 Card Cage
The modules in your system are mounted in a 12-slot card cage behind
the mass storage shelf, as shown in Figure 1–6. The slots are numbered
beginning with slot one next to the power supply.
A console bulkhead assembly with indicators, system controls, and
connectors covers the memory modules and CPU in the first five slots.
1.2.2.1 Memory Modules
The first four slots are reserved for memory modules.
1.2.2.2 CPU
The CPU is in the fifth slot.
1.2.2.3 Q–bus Option Modules
Slots 6 through 12 are available for Q–bus option modules (see Figure 1–7). The number and type of modules installed in your system
depend on your configuration. Each Q–bus slot, even an empty one, is
protected by a cover. Together these covers and the console bulkhead
assembly form a shield with a three-fold purpose:
1. To protect external devices from electrical interference generated by
the system, maintaining compliance with FCC and VDE requirements.
2. To protect the system from electrical interference generated by external devices.
3. To maintain airflow integrity.

1–10 System Overview

Figure 1–6: Card Cage

System Overview 1–11

Figure 1–7: Q–bus Option Slots

1–12 System Overview

CAUTION
Do not operate the system without Digital-supplied slot
covers. The covers are required to protect the equipment
and to meet international regulatory standards. Do not
substitute other slot covers, as they may not meet the
required specifications.

The design of the module covers varies, depending on the type of module
installed in the slot. Modules requiring external cable connections such
as communications controllers have recessed covers that are riveted
directly to the module. The recessed module covers allow space for
connecting cables. Modules requiring no external cable connections such
as mass storage controllers are covered by flush covers. Empty slots are
also covered by flush covers, which may be single or double width. All
covers, except those covering empty slots, have a label identifying the
module installed in the slot.
Cables connecting your system to peripheral devices (such as terminals,
modems, and printers) are attached to communications controllers. Each
cable can contain multiple lines. The cables run over the top of the BA441
enclosure and towards the back, where the cables are split into individual
lines. These connections are described in more detail in the VAX 4000
Model 500 Operation manual.
1.2.2.4 Console Bulkhead Assembly
The console bulkhead assembly (see Figure 1–8) covers slots 1 through
5, and has several system controls, indicators and connectors.
NOTE
The console bulkhead assembly is visible when the chassis is extended and viewed from the top (see Figure 1–8).

System Overview 1–13

Figure 1–8: Console Bulkhead Assembly Controls, Indicators, and Connectors

1–14 System Overview

The console bulkhead assembly contains the following controls and
indicators:
Power-Up mode switch — This three-position rotary switch
determines how the system responds at power-up:
Language inquiry mode (the position indicated by a
profile of a face) causes the system to display a language selection menu at power-up if your console terminal supports multiple languages. Also, if a default
boot device has not been selected, this mode causes the
system to issue a list of bootable devices and prompts
you to select a device from the list. Once a device is
selected, the system autoboots from that device each
time you turn it on.
Run mode (the position indicated by an arrow) is the
normal operating setting.

Loop back test mode (the position indicated by a T in a
circle) causes the system to run loopback tests on the
console serial line at power-on. This setting requires
special loopback connectors and is for Digital Customer
Services use only.
Baud rate select switch — This switch sets the system baud
rate to match that of the console terminal. The factory setting
is position 5 (9600).
Modified modular jack (MMJ) — This console terminal connector provides the connection for the console terminal.

Light-emitting diode (LED) — This display shows the testing
sequence during power-up.

System Overview 1–15

Break enable/disable switch — When this switch is pushed
back (down or O position), breaks are disabled. When it is
forward (up or | position), breaks are enabled. When breaks
are enabled, pressing Break on the console terminal halts the
processor and transfers control to the console program. Using
the console command SET CONTROL, you can specify the
control character Ctrl/C rather than Break to initiate a break
signal.
The break enable/disable switch also controls what happens at
power-on. When breaks are disabled (down or O position), the
system attempts to automatically boot software at power-on.
When breaks are enabled (up or | position), the system enters
console mode (indicated by the >>> prompt) at power-on.
Using the console command SET HALT REBOOT or SET
HALT RESTART_REBOOT, you can set your system to
automatically boot software after the system is halted by
pressing Break .
Bus node ID plugs — VAX 4000 systems have two separate
DSSI buses. Two DSSI bus node ID plugs, one for the internal
DSSI bus (Bus 0) and one for the external bus (Bus 1), identify
the bus node to the CPU. These plugs are configured at the
factory. For single-host systems, Bus 0 is identified as Bus
Node 6, Bus 1 is identified as Bus Node 7.
DSSI connectors (DSSI Bus 1) — These two DSSI connectors,
labeled X and Y on the console bulkhead assembly, allow you
to expand your system by connecting additional mass storage
devices to the second DSSI bus.
Ethernet connectors — The console bulkhead assembly has
two Ethernet connectors: a BNC-type connector for ThinWire
Ethernet, and a 15-pin connector for a standard Ethernet
transceiver cable.
Ethernet connector switch — This switch selects either the
ThinWire or the standard Ethernet connection. To use the
standard connection, set the switch to the forward position.
To use the ThinWire cable connection, set the switch to the

1–16 System Overview

back position. A green indicator light (LED) for each connector
indicates which connector is active.

1.2.3 DSSI and SCSI Connectors (DSSI Bus 0; SCSI Bus 0)
To the right of the card cage are the DSSI and SCSI (KZQSA In)
connectors (see Figure 1–9) for their respective Bus 0. Bus 0 provides
the DSSI and SCSI bus for ISEs installed in the system enclosure. The
connectors allow you to expand your system by connecting additional
mass storage devices to the bus.

System Overview 1–17

Figure 1–9: Connectors for DSSI Bus 0 and SCSI Bus 0

1–18 System Overview

1.2.4 Power Supply Controls and Indicators
To the left of the card cage is the power supply (see Figure 1–10) which
provides power to the mass storage devices, the modules installed in the
card cage, and the fans.
To prevent damage from overheating, the power supply monitors the
internal temperature and the speed of the fans. If the power supply
detects overheating or a fan failure, the power supply shuts down the
system.
Figure 1–10 shows the controls, indicators, and connectors on the power
supply.
NOTE
These controls, indicators, and connectors are visible
when the chassis is extended and viewed from the top
(see Figure 1–10).

System Overview 1–19

Figure 1–10: Power Supply Controls and Indicators

1–20 System Overview

The controls, indicators, and connectors function as follows:
Power supply circuit breaker — This switch is used to turn
the power supply on and off. The OFF position is indicated by
a O; the ON position is indicated by a | .
NOTE
To operate the VAX 4000 Model 500, the power
supply circuit breaker must be in the ON ( | )
position.

A power surge will cause the breaker to trip and set the system
ON/OFF switch to the OFF position (O). Setting the system ON
/OFF switch to ON ( | ) resets the power supply circuit breaker.
If the circuit breaker trips, wait one minute before setting the
system ON/OFF switch to ON.
AC present indicator — This indicator lights when the system
ON/OFF switch and power supply circuit breaker are set to
ON and voltage is present at the input of the power supply.
If the ac present indicator does not light when the ON/OFF
switch and power supply circuit breaker are set to ON, refer
to the VAX 4000 Troubleshooting and Diagnostics manual.
DC OK indicator — This indicator lights when the power
supply voltages are within the correct operating range. If the
dc ok indicator does not light when the power switches are set
to ON, refer to your VAX 4000 Troubleshooting and Diagnostics
manual.

Fan failure indicator — This indicator lights if either of the two
cooling fans stop working. The power supply automatically
shuts down the system as a precautionary measure when a fan
failure is detected. Call your Digital service representative if
a fan failure occurs.
Over-temperature condition indicator — This amber overtemperature condition indicator lights if the enclosure has
shut down due to an over-temperature condition.

System Overview 1–21

Power bus connectors — There are three power bus connectors
(MO, SO, and SI).

The main-out (MO) connector is the source for the
power control bus signal to the expander. One end
of a power-bus cable is connected here and the other
end is connected to the power supply secondary-in (SI)
connector of an R400X expander.
In the VAX 4000 Model 500, the secondary-in (SI)
connector receives the power bus control signal from
the front panel system ON/OFF switch. In a power
bus with more than one expander, the power control
bus signal is connected between expanders using the
secondary in and out connectors (see Section 2.7.4)
NOTE
The SI connector is not available for system expansion.

The secondary-out (SO) connector is not used on the
VAX 4000 system. It is used to send the signal down
the power bus for configurations with more than one
expander.

1–22 System Overview

1.2.5 Fans
Two fans, located behind the card cage, draw air in through the front
of the VAX 4000 chassis, through the card cage, and out the rear of the
VAX 4000. The speed of the fans varies, depending on the ambient room
temperature. To reduce the load on the fans, keep the system away
from heat sources. Figure 1–11 shows the airflow through the VAX 4000
system enclosure.
NOTE
The power supply monitors the fans. If either fan stops
working, the fan failure indicator on the power supply
lights, and the system automatically shuts down as a precautionary measure. Call your Digital service representative if a fan fails.
The fan speed control can be set so that the fans will run
at their maximum speed. This setting is recommended
if you want potentially higher system module reliability,
and do not object to the increased fan noise. Contact
your Digital service representative to override the fan
speed control.

System Overview 1–23

Figure 1–11: System Air Circulation

1–24 System Overview

Chapter 2
Installation
This chapter describes the procedures to install, set system controls,
connect additional devices, and cable the Rack-Mountable VAX 4000
Model 500 computer system in a standard cabinet.

2.1 Verifying Site Preparation
The installation instructions assumes that the site meets all the RackMountable VAX 4000 Model 500 installation requirements.

Installation 2–1

2.2 Tools Required
You will need the following tools to install the equipment:
•

Scissors

•

Flat blade screwdriver

•

Phillips screwdriver

•

Adjustable wrench

•

Set of nut drivers

2.3 Checking the Shipment
NOTE
Save all packing materials in case you need to return the
system for service or reship the system.

Before unpacking your system, find the product delivery document. It
is attached to the outside of the carton and is labeled with a blue "i"
symbol. The product delivery document itemizes your order and lists
the components that are shipped.
Make sure your shipment is complete by verifying that each item listed
as shipped on the product delivery document appears on a content listing
or on a barcode label on the outside of one of the boxes in your shipment.
Check the contents of each carton against the content listing on its side
to ensure you received all items.
If any item is missing or damaged, contact your delivery agent immediately, and contact your Digital sales representative.

2–2 Installation

Figure 2–1 shows the contents of the shipping carton. Your shipment
may include several cartons. One carton contains the system, hardware
documentation, software documentation, system software, diagnostic
software, and software licenses.
NOTE
Depending on your order, your shipment may also include some of the following devices:
•

Terminals

•

Printers

•

Modems

•

Options

Table 2-1 lists the mounting hardware included with the system.
Table 2–1: Mounting Hardware (P/N 7028616-01)
Part Number

Description

Quantity

Slides

CL Mounting Brackets

CR Mounting Brackets

8-32 x 5/16 screws

#8 flat washers

8x32 hex nuts

#8 lock washers

90-07786-00

#10 U-nuts

90-00063-43

10-32 Trusshead screws

90-00063-78

6-32 x 5/16 screws

90-06565-01

10-32 KEP nuts

74-43410-01

washer plate

90-06243-09

1/4-20 screws

Supplied with slide kit

Installation 2–3

Table 2–1 (Cont.): Mounting Hardware (P/N 7028616-01)
Part Number

Description

Quantity

74-43949-01

nut plate

74-43957-01

bracket interlock (for H9702)

74-41391-01

Chassis Mounting Brackets

74-41391-02

Chassis Mounting Brackets

2–4 Installation

Figure 2–1: Shipping Carton Contents

Installation 2–5

2.4 Installing the Rack-Mountable VAX 4000 Model
500
This section describes installing the equipment slides in the cabinet and
mounting the Rack-Mountable VAX 4000 Model 500 onto the equipment
slides.
After unpacking the Rack-Mountable VAX 4000 Model 500, install it as
described in the following sections.

2.4.1 Installing Equipment Slides
Remove the following material from the slide carton:
•

One pair of slides (one right-hand slide and one left-hand slide)

•

Four mounting brackets (two brackets stamped with CR and two
brackets stamped with CL)

•

Package containing the mounting hardware

To install the equipment slides in the enclosure:
1. Extend the right-hand slide to gain access to the slide lock. Lift up
on the slide lock (located on the inside of right-hand slide assembly)
and remove the inner slide race (see Figure 2–2) and set it aside.
2. Extend the slide assembly.
3. Mount a CR bracket to the outside of the right-hand chassis slide
and position the CR bracket so that it is flush with the front end of
the chassis slide.
4. Align the screw hole in the CR bracket over the first single forward
screw hole in the forward end of the equipment slide (see Figure 2–2).
5. Secure the CR bracket to the front end of the right chassis slide using
an 8-32 x 5/16-inch screw, flat washer, split ring lock washer and
nut. Insert the screw from the inside of the slide. Use a nut driver
to tighten the nut on the outside of the CR bracket (see Figure 2–2).
6. Install an 8-32 x 5/16-inch screw, flat washer, split ring lock washer
and nut in the center slot in the CR bracket. Insert the screw from
the inside of the slide. Use a nut driver to tighten the nut on the
outside of the CR bracket (see Figure 2–2).

2–6 Installation

7. Position the CL bracket to the outside of the right hand chassis slide
so that the end hole, on the chassis slide, is in line with the rear slot
of the CL bracket (see Figure 2–2).
8. Install an 8-32 x 5/16-inch screw, flat washer, split washer and nut
in the rear slot of the CL bracket. Install the screw from the inside
of the slide. Do not tighten the screw at this time (see Figure 2–2).
9. Install an 8-32 x 5/16-inch screw, flat washer, split washer and nut
in the center slot of the CL bracket. Install the screw from the inside
of the slide. Do not tighten the screw at this time (see Figure 2–2).
10. Extend the left-hand slide to gain access to the slide lock. Lift up on
the slide lock (located on the inside of the left-hand slide assembly),
remove the slide (see Figure 2–2) and set it aside.
11. Position the CL bracket to the outside of the left hand chassis slide
so that it is flush with the front end of the chassis slide.
12. Align the screw hole in the CL bracket over the single forward screw
hole in the forward end of the equipment slide (see Figure 2–2).
13. Secure the CL bracket to the front end of the right chassis slide using
an 8-32 x 5/16-inch screw, flat washer, split ring lock washer and
nut. Insert the screw from the inside of the slide. Use a nut driver
to tighten the nut on the outside of the CR bracket (see Figure 2–2).
14. Install an 8-32 x 5/16-inch screw, flat washer, split ring lock washer
and nut in the center slot in the CL bracket. Insert the screw from
the inside of the slide. Use a nut driver to tighten the nut on the
outside of the CR bracket (see Figure 2–2).
15. Position the CR bracket to the outside of the right-hand chassis slide
so that the end hole, on the chassis of the slide, is in line with the
rear slot of the CR bracket (see Figure 2–2).
16. Install an 8-32 x 5/16-inch screw, flat washer, split washer and nut
in the rear slot of the CR bracket. Install the screw from the inside
of the slide. Do not tighten the screw at this time (see Figure 2–2).
17. Install an 8-32 x 5/16-inch screw, flat washer, split washer and nut
in the center slot of the CR bracket. Install the screw from the inside
of the slide. Do not tighten the screw at this time (see Figure 2–2).

Installation 2–7

18. Determine where the equipment will be located in the cabinet. Match
the bottom hole on the slide with the top hole of a 0.5 inch hole pair
on the cabinet rail (see Figure 2–3). Install a 1/4-20 screw in the top
and bottom holes of the slide.
The RETMA hole spacing allows more than one location in an
enclosure.
Figure 2–2: Equipment Slide Assembly

NOTE
The hardware for installing the slides to the cabinet
rails is located in the hardware kit (P/N 70-28616-01).

2–8 Installation

Figure 2–3: Installation Dimensions

19. Install the slide mounting brackets on the inside surface of the
cabinet rails ( Figure 2–4 shows the left side cabinet rails). Assemble
the washer plate and screws on the front surface of the cabinet
rail. The screws pass through the front washer plate, cabinet, slide
bracket, and thread into the nut plate. The nut plate is installed so
that the smallest hole-to-edge distance is down.
Installation 2–9

20. Position the right-hand slide (see Figure 2–3) and secure it in two
places, front and rear. Torque the 1/4-20 screws to 60-in-lb.
NOTE
Pull the slide upward when securing it to the rails.
Also, ensure that the slide is level and that the slides
are at the same height within the cabinet.

21. Repeat step 19 for mounting the left-hand slide in the cabinet.
22. Extend the equipment slide all the way out and tighten the four
screws holding the rear (one CR and one CL) slide mounting brackets.
23. Install four U-nuts #1 and #2 (cabinet clips) two places each (see
Figure 2-3). These are for securing the VAX 4000 bezel in the closed
position.

2–10 Installation

Figure 2–4: Installing the Slides to the Cabinet Rails

Installation 2–11

2.4.2 Attaching Chassis Mounting Brackets
NOTE
The hardware for mounting the chassis mounting brackets is located in the hardware kit (P/N 70-28616-01).

Special chassis mounting brackets are required for mounting the chassis
to the equipment slides. Perform the steps in the following procedure to
install the four chassis mounting brackets to the chassis:
WARNING
Use sufficient personnel and proper equipment when
lifting or moving the Rack-Mountable VAX 4000 Model
500 computer system. The fully loaded system weighs
53.5 kg (118 lb).

NOTE
In the event that the Rack-Mountable VAX 4000 Model
500 computer system is to be installed in the Digital H9702 (tall cabinet), one special chassis mounting
bracket (P/N 74-43957-01) is supplied and must be installed in the left rear side of the chassis. Follow the
same instructions used when installing the standard
chassis mounting brackets.

1. Place the VAX 4000 chassis on a flat work surface on blocks to raise
its lower edge above the surface, approximately 3.8 cm (1.5 in).
2. Position the chassis mounting bracket in the indentation on the lower
side of the chassis (see Figure 2-5). There are two indentations
on each side of the VAX 4000 for the chassis mounting brackets.
Position each of the brackets so that the two 10-32 x 3/8 inch studs
are pointing down, and the long part of each mounting bracket pair
point toward each other.
3. Secure the chassis mounting bracket in place with four 6-32 x 5/16
inch screws.
4. Repeat steps 2 and 3 for each of the remaining three brackets.

2–12 Installation

Figure 2–5: Mounting the Chassis on Equipment Slides

Installation 2–13

2.4.3 Mounting Chassis on Equipment Slides
Perform the steps in the following procedure to install the chassis onto
the equipment slides:
WARNING
Use sufficient personnel and proper equipment when
lifting or moving the Rack-Mountable VAX 4000 Model
500 computer system. The fully loaded system weighs
53.5 kg (118 lb).

WARNING
Before installing the chassis into the cabinet, ensure
that the stabilizer foot, located at the lower front of the
cabinet, is extended in the fully deployed position.

1. Pull both equipment slides to the fully extended position. Ensure
that both slides are locked in the extended position.
2. Lift the chassis and position it so that the two studs, in the two
forward chassis mounting brackets, are aligned directly over the
forward holes in each of the two equipment slides (see Figure 2–5).
3. Position the two studs in the two rear chassis mounting brackets
directly over the rear slots in each of the two equipment slides (see
Figure 2–5).
4. Lower the chassis onto the equipment slides.
5. Secure the VAX 4000 chassis to the slides using eight 10-32 KEP nuts
with lockwashers over the eight studs and tighten, using a 3/8-inch
socket wrench.
6. Push the slide locks up (see Figure 2–2) and slide the chassis into
the cabinet.
7. To secure the VAX 4000 to the cabinet, tighten the four captive screws
mounted on the bezel.

2–14 Installation

2.4.4 Installing the Cable Management Bracket
Perform the steps in the following procedure to install the cable management bracket (see Figure 2–6):
1. From the rear of the cabinet, position the cable management bracket
at the top of the fan exhaust grill at the rear of the chassis.
NOTE
The hardware for attaching the cable management
bracket is in the hardware kit (P/N 70-28616-01).

2. Secure the cable management bracket to the chassis with two 6-32
x 5/16 inch screws.

2.4.5 Installing the Cable Tie Bracket
Perform the steps in the following procedure to install the cable tie
bracket (see Figure 2–6):
1. Determine where the cable tie bracket is to be positioned (near the
cable management bracket) at the rear of the cabinet.
NOTE
The hardware for attaching the cable tie bracket is
located in the hardware kit (P/N 70-28616-01).

2. Install four 10-32 U-nuts over the mounting holes in the rear rails
of the cabinet, positioned just above the edge of the chassis, in line
with the cable management bracket (see Figure 2–6).
3. Position the cable tie bracket over the four U-nuts.
4. Secure the cable tie bracket to the cabinet with four 10-32 x 1/2 inch
screws.

Installation 2–15

Figure 2–6: Installing the Cable Management Bracket

2–16 Installation

2.5 Setting System Controls
The system controls are on the console bulkhead assembly, the system
control panel (SCP), and on each mass storage device. The console
bulkhead assembly contains the power-up mode switch, the baud rate
select switch, and the break enable/disable switch. The SCP contains
the Halt button and Restart button. The mass storage devices include
the RF-series integrated storage equipment (ISEs) and the tape drive.
Each ISE has a write-protect button and a run/ready button.
The SCP and ISE controls are on the front of the system (see Figure 2–7).
The console bulkhead assembly is mounted on the card cage.

Installation 2–17

Figure 2–7: Rack-Mountable VAX 4000 Model 500 Controls and Indicators

All controls are on the front of the system, as shown in Figure 2–7.

2–18 Installation

Setting Controls on the Integrated Storage Equipment (ISEs)
Check the settings on each ISE:
•

If a TF85 tape drive is installed in your system (see Figure 2–8):
— Make sure that the cartridge insert/release handle is closed
(pushed in).
— Verify that a bus node ID plug is inserted in the drive.

To
Re Han Op
P
W
Un
ait res
d e
m
lo
s
ov le n t
ad
his
e
Lig But
Ta
to
ht
pe
n

lo
Un

To
H
Ha C
O
Lo
nd los Inse and pe Wa
it
ad
le n
le e
r
th
th t Ta
Lig
is
is
pe
ht

W
rit
Pr e
ot
ec

te
d
pe
in
Us
Us
e
e
Cle
Ta anin
pe g
O
pe
Ha rat
nd e
le

Figure 2–8: TF-Series Tape Drive

Cartridge Insert/
Release Handle

Bus Node
ID Plug
MLO-007171

Installation 2–19

•

If a TK-series drive is installed in your system (see Figure 2–9), make
sure that the cartridge insert/release handle is closed (pushed in).

Figure 2–9: TK Series Tape Drive

Cartridge
Insert/Release
Handle

MLO-007180

2–20 Installation

•

If a TLZ-series tape drive is installed in your system (see Figure 2–10), verify that a bus node ID plug is inserted into the drive.

Figure 2–10: TLZ-Series Tape Drive

Bus Node
ID Plug
0
MLO-007159

Each RF-series ISE disk drive has its own front panel with controls and
indicators. The write-protect button is on the right side of each front
panel. Make sure the write-protect button is in the out (write-enabled)
position.
The run/ready button is to the left of the write-protect button. Make
sure the run/ready button is in the out position.

Installation 2–21

Setting Controls on the System Control Panel (SCP)
Check the settings on the SCP:
•

Halt button—This button is located on the SCP, to the left of the
ISEs. The Halt button should be in the out position.

Setting Controls on the Console Bulkhead Assembly
Check the settings on the console bulkhead assembly (see Figure 2–11):
Power-Up mode switch — This three-position rotary switch
determines how the system responds at power-up. The factory
setting is run mode (right pointing arrow). Set the switch to
the language inquiry mode (the face profile) before you power
on the system the first time.
Baud rate select switch — This switch (see Figure 2–11) sets
the system baud rate to match that of the console terminal.
The factory setting is position 5 (9600). Set the console
terminal baud rate to 9600. The system and the console
terminal must be set to the same baud rate to communicate.
Break enable/disable switch — When this switch is pushed
back (down or O position), breaks are disabled. When the
switch is forward (up or | position), breaks are enabled. The
factory setting is break disabled (O). Leave the switch set to
disable while you start the system for the first time, and run
diagnostic firmware to test the system. Then set the switch
to enable ( | ). With break enabled, the system automatically
enters console mode when powered on, as indicated by the
console prompt (>>>) on the console.
You are now ready to connect additional devices to the system.

2–22 Installation

Figure 2–11: Setting Controls on the Console Bulkhead Assembly

2.6 Connecting Additional Devices to the System
You can connect other devices to the VAX 4000 at this time, or you can
complete the installation and load system software before connecting
other devices. If you have an RRD42 compact disk drive that must be
installed before you install software, install it now. Otherwise, skip to
Section 2.6.8 if you prefer to connect additional devices later. Use the
instructions in this step when you are ready to connect the devices.

Installation 2–23

All connections are made directly to the module cover. Begin with
the module next to the console bulkhead assembly (slot 6). As you
complete connections for each module, move right to the next module.
The following sections explain how to connect each type of device.
To help you make the proper connections, each module cover has an
identifying number at the top. The label contains the option number and
module number. Table 2–2 lists the identifying numbers for all modules
that you may see on your VAX 4000 Model 500 system. Not all modules
require additional connections.
Table 2–2: Module Identification Numbers
Module Number

Option Number

Description

L4002–BA

KA680–BA

VAX 4000 Model 500 CPU
(server)

L4004–AA

MS690–AA

VAX 4000 memory, 16 megabytes

L4004–BA

MS690–BA

VAX 4000 memory, 32 megabytes

L4004–CA

MS690–CA

VAX 4000 memory, 64 megabytes

L4004–DA

MS690–DA

VAX 4000 memory, 128
megabytes

M8578–00

MRV11

Programmable read-only memory

M3127–PA

DESQA–SA

Ethernet adapter

M3118–YA

CXA16–AA

16-line asynchronous serial
interface (RS–423–A, no modem
support)

M3118–YB

CXB16–AA

16-line asynchronous serial
interface (RS–422, noise immune)

M3119–YA

CXY08–AA

8-line asynchronous serial
interface (full modem support)

M3018

DSV11-SA

2-line synchronous serial
interface (full modem support)

M3121–PA

DFA01–AA

2-line asynchronous serial
interface with integral modem

M7658–PA

DRQ3B–SA

Real-time parallel interface

2–24 Installation

Table 2–2 (Cont.): Module Identification Numbers
Module Number

Option Number

Description

M7651–PA

DRV1W–SA

Real-time parallel interface

M8020–PA

DPV11–SA

Synchronous serial line interface

M8086–PA

LPV11–SA

Dual parallel printer interface

M8634–PA

IEQ11-SA

IEEE instrument bus DMA
controller

M3125–PA

IBQ01–SA

BITBUS-to-Q–bus DMA controller

A1009–PA

AAV11–SA

Digital-to-analog converter

A1008–PA

ADV11–SA

Analog-to-digital converter

A030–PA

ADQ32–SA

Analog-to-digital converter

M4002–PA

KWV11–SA

Programmable real-time clock

A026–PA

AXV11–SA

D/A and A/D converter

M7616

KXJ11–SA

J11 CPU, 512 kilobyte RAM,
64 kilobyte programmable readonly memory, Q–bus peripheral
processor

DIV32-SA

Q–bus/ISDN basic rate access
interface

DRV1J–SA

Q–bus parallel interface

DTC05–SA

Digital encoded voice

KITHA-AA

MIRA AS high availability option

MRV11

Q–bus, universal socket, 32K
EPROM

VS3OU–GA/G3/G4

Grahics option

CAUTION
Do not operate the system without Digital-supplied slot
covers. These covers are required to protect the equipment and to meet international regulatory standards. Do

Installation 2–25

not substitute other covers as they may not meet the required specifications.
Operating the system without the slot covers has the
following consequences:
•

The system may overheat due to inadequate air circulation.

•

The system will not comply with FCC and VDE requirements for electrostatic shielding, and may produce electrical interference that affects other equipment.

•

The system is susceptible to electrical interference
or damage from external sources.

2.6.1 Connecting Terminals and Serial Printers
You can connect up to 16 terminals and/or serial printers for each CXA16
or CXB16 module installed in the system. If the site has been prepared
properly, the lines for the additional terminals and printers are clearly
labeled, and terminate near the system.
You do not connect the terminals and printers directly to the system,
but to a cable concentrator (H3104), which has connections for up to
eight terminals and printers. You then connect the cable concentrator
to the system with a BC16D cable. Two H3104 cable concentrators and
two BC16D cables for each CXA16 module are shipped with the CXA16
module.
Connect the additional terminals and printers as follows:
1. Find the H3104 cable concentrator and BC16D cable (see Figure 2–12.

2–26 Installation

Figure 2–12: BCD16 Cable
H3104 Cable
Concentrator
BC16D Cable

MLO-007120

2. Feed the connector end of the BC16D cable under the cable management bracket from the back and insert it into the connector (see
Figure 2–13). If you are going to connect both BC16D cables, connect
the first to the connector labeled 8–15 on the CXA16 module cover.
If you are going to use only one BC16D cable, connect the cable to
the connector labeled 0–7. Lock the connector into place by using the
bail latches shown in Figure 2–13.

Installation 2–27

Figure 2–13: CXA16 Module

3. Insert the free end of the BC16D cable into the cable concentrator
(see Figure 2–14). Lock the connector into place by using the bail
latches.

2–28 Installation

Figure 2–14: Cable Concentrator

MLO-007122

4. Connect each printer and terminal cable directly to one of the
modified modular jacks on the cable concentrator (see Figure 2–15).

Installation 2–29

Figure 2–15: Connecting to the Cable Concentrator

Modular
Jack

To Terminals
and Printers
MLO-007123

5. If you have not already done so, connect the remote terminal or
printer to the other end of the cable. The terminal or printer
documentation shows how to connect the cable. If the printer or
terminal does not have a modified modular jack connection, use a
passive adapter (H8757–A for 25 pin and H8757–B for 9 pin).
Follow the same procedure for connecting a second BC16D cable to the
CXA16, except insert the cable into the connector labeled 0–7.

2–30 Installation

You can mount the cable concentrator on a wall (see Figure 2–16). Wall
mounting enables you to keep cables off the floor.
NOTE
Be sure that you mount the cable concentrator less than
7.6 meters (25 feet) from the VAX 4000 Model 500 to
ensure that the BC16D cable reaches the system.

Figure 2–16: Mounting the Cable Concentrator on the Wall

Installation 2–31

2.6.2 Connecting Parallel Printers
You can connect up to two parallel printers for each LPV11 module
installed in the system. Connect parallel printers to the LPV11 module
as follows:
1. Find the BC27L–30 cable (see Figure 2–17).
Figure 2–17: BCL27L–30 Cable

MLO-007126

2. Feed the socket end of the BC27L-30 cable under the cable management bracket from the back of the cabinet.
3. Insert it into the connector labeled J2 on the LPV11 module cover
(see Figure 2–18). Lock the connector into place by using the bail
latches.
4. Insert the other end of the BC27L-30 cable into the printer.

2–32 Installation

Figure 2–18: LPV11 Module

Follow the same procedure for connecting a second printer to the LPV11
module, except insert the cable into the connector labeled J1 on the
LPV11 module cover.

Installation 2–33

2.6.3 Connecting Synchronous Modems
You can connect two synchronous modems to the system for each DSV11
module installed in the system.
Connect a synchronous modem to a DSV11 module using the protocolspecific adapter and extension cables (see Figure 2–19 and Figure 2–20)
as follows:
1. Find the desired cable pair (see Figure 2–20).
2. Locate the DSV11 module (see Figure 2–19).
3. Feed the socket end of the 0.6 m (24 in) adapter cable (BC19–B/–D
/–E/–F) under the cable management bracket from the back of the
cabinet and connect it to the DSV11 module (see Figure 2–19).
4. Tighten the two screws on the cable connector using a screwdriver.
5. Connect the extension cable (BC55D, BC22F, or BC19L) to the other
end of the adapter cable.
6. Secure the cables by tightening the two screws at the connection.

2–34 Installation

Figure 2–19: DSV11 Module Connection

7. Connect the other end of the extension cable to the modem. Refer to
the modem documentation for the location of the connector, and for
instructions on using the modem.

Installation 2–35

Figure 2–20: Protocol Adapter Cable Pairs

Adapter Cables

Extension Cables

BC19E-02

BC55D-25

BC19F-02

BC19L-25

BC19B-02

BC55D-25

BC19D-02

BC22F

MLO-007129

2–36 Installation

2.6.4 Connecting Asynchronous Modems
You can connect up to eight asynchronous modem lines to the CXY08
module. To connect a modem to a CXY08 module, see Figure 2–22 and
perform the following:
1. Find the BC19N–12 cable (see Figure 2–21).
Figure 2–21: BC19N-12 Cable

MLO-007134

2. Feed the socket end of the cable under the cable management bracket
from the back of the cabinet and insert it into the CXY08 module
connector (see Figure 2–22).

Installation 2–37

Figure 2–22: CXY08 Module Connector

•

If you are going to use both BC19N–12 cables, connect the first
cable to the connector labeled 4–7 on the CXY08 module cover.

•

If you are going to use only one cable, connect the cable to the
connector labeled 0–3.

2–38 Installation

3. Lock the connector into place with the bail latches.
4. Attach one to four modems to the connectors at the opposite end of
the cable.
If you want to place the modem farther away from the system, attach
a BC22F extension cable between the cable assembly and the modem
(see Figure 2–23).
Refer to the modem documentation for the location of the connector,
and for instructions on using the modem.
Figure 2–23: BC22F Extension Cable

Extension Cable

MLO-007189

Repeat the same procedure for connecting a second BC19N cable, except
insert the cable into the connector labeled 0–3.

Installation 2–39

2.6.5 Connecting to an Ethernet Network at the Console
Bulkhead Assembly
The Rack-Mountable VAX 4000 Model 500 console bulkhead assembly
contains an Ethernet controller that can connect the system to a network
using either standard or ThinWire Ethernet cabling.
The Ethernet connector switch (see Figure 2–24) activates either the
standard or ThinWire connector. To select the standard Ethernet, slide
the switch to the forward position. To select ThinWire, slide the switch
to the back position. The indicator light next to the selected connector
should be lit when the system is powered on, indicating the active
connector.
CAUTION
Turn the system off before you select a connector to
avoid disrupting the network.

2–40 Installation

Figure 2–24: Console Connector Panel Ethernet Switch

Installation 2–41

2.6.5.1 Making a ThinWire Network Connection at the Console Bulkhead
Assembly
Make a ThinWire network connection at the console bulkhead assembly
as follows:
1. Figure 2–25 shows a ThinWire cable, T-connector, and terminator.
Remove the terminator from the back of the T-connector on the ThinWire connector, which is located on the console bulkhead assembly
(see Figure 2–26).
Figure 2–25: ThinWire Cable, T-Connector, and Terminator

2. Connect the ThinWire Ethernet cable to the T-connector as shown in
Figure 2–26.
•

If the system requires one connection to the network, connect the
ThinWire cable to the back end (rear most) of the T-connector.
Connect the cable to the T-connector by pushing in and turning
the connector clockwise until it locks into place.

•

If the system is a link in a network and connects to two components, remove both terminators and connect one ThinWire cable
to each end of the T-connector.

2–42 Installation

Figure 2–26: Making a ThinWire Ethernet Connection at the Console Module

Connect the cables to the T-connector by pushing in and turning
the connectors clockwise until they lock into place.

Installation 2–43

Use the cable clamp to form the forward cable in a loop approximately 10 cm (4 in) in diameter as shown in Figure 2–27.

Figure 2–27: Form the Forward Cable in a Loop at the Console Module

3. The ThinWire cable can be connected to any one of the following
devices:
•

A DEMPR which, in turn, can be connected to a baseband
Ethernet cable, and can connect up to eight ThinWire segments
in a LAN.

•

A DESPR which, in turn, can be connected to a baseband Ethernet cable, and connects to one ThinWire segment.

•

A ThinWire Ethernet adapter located in another workstation.

The Digital Network and Communications publications explain the types
of network configurations possible.

2–44 Installation

NOTE
Contact your network manager or Digital service representative if you have questions concerning network configurations.

When the ThinWire cable is connected to a DEMPR or DESPR, the
ground is provided by the DEMPR or DESPR chassis. If you are using a
single-segment LAN with no DEMPR or DESPR, you may need to ground
the ThinWire connector on the console bulkhead assembly.
CAUTION
Each ThinWire Ethernet segment must have only one
grounding point.

To ground a single-segment ThinWire network at the console bulkhead
assembly, follow the instructions below.
1. Remove the steel nut, the lock washer, and the plastic washer on the
console bulkhead assembly as shown in Figure 2–28.
2. Discard the plastic washer.
3. Replace and tighten the lock washer and the steel nut.

Installation 2–45

Figure 2–28: Grounding ThinWire Ethernet at the Console Bulkhead
Assembly

2.6.5.2 Making a Standard Network Connection at the Console Bulkhead
Assembly
Make a standard network connection at the console bulkhead assembly
as follows:
1. Find the Ethernet transceiver cable (see Figure 2–29). The cable has
a plug at one end and a socket at the other end.

2–46 Installation

Figure 2–29: Ethernet Transceiver Cable

MLO-007143

2. Make sure the lock on the standard Ethernet connector on the console
bulkhead assembly is in the forward position. Feed the plug under
the cable management bracket from the rear of the cabinet and insert
it into the socket on the console bulkhead assembly.
Slide the locking device back on the socket to secure the connection.
Figure 2–30 shows a standard Ethernet network connection.
3. Connect the other end of the cable to one of the following devices:
•

An H4000 or H4005 transceiver located on a traditional baseband
Ethernet cable.

•

A DELNI which, in turn, can be connected to a baseband Ethernet cable, and can connect up to eight systems in a LAN.

•

A DESTA adapter, which allows you to connect the Ethernet
transceiver cable to ThinWire Ethernet cabling.

The Digital Network and Communications publications explain the types
of network configurations possible.
NOTE
Contact your network manager or Digital service representative if you have questions concerning network configurations.

Installation 2–47

Figure 2–30: Making a Standard Ethernet Connection at the Console Module

2–48 Installation

2.6.6 Connecting to an Ethernet Network at the DESQA
Module
Your system may also have a DESQA Ethernet controller. Two types
of DESQA modules are available. They are the same except one has
an external Ethernet connector switch. Both modules can accommodate
either ThinWire or standard Ethernet cabling. Figure 2–31 shows the
location of the external Ethernet connector switch.
If your module does not have the connector switch, you can still connect
to the ThinWire Ethernet. To connect to the standard Ethernet port, you
must call a Digital service representative.
CAUTION
Turn off the system before you select a connector to
avoid disrupting the network.

With the Ethernet connector switch you can select either a ThinWire or
a standard Ethernet connection. When the Ethernet connector switch is
set to the out position, the ThinWire connector is selected. When the
switch is set to the in position, the standard connector is selected. An
indicator next to the connector lights when the system is powered on to
indicate which port is selected.
2.6.6.1 Making a ThinWire Network Connection at the DESQA Module
To Make a ThinWire network connection at the DESQA module perform
the following:
1. Find the DESQA module.
2. Make sure the Ethernet connector switch is in the out position (see
Figure 2–31).
3. Push in and turn the T-connector plug on the DESQA module counterclockwise until it unlocks. Figure 2–32 shows a ThinWire cable,
T-connector, and terminator.

Installation 2–49

Figure 2–31: DESQA ThinWire/Standard Ethernet Connector Switch

2–50 Installation

Figure 2–32: ThinWire Cable, T-Connector, and Terminator

4. Remove the terminator from either end of the T-connector.
5. Connect the ThinWire Ethernet cable to the T-connector as shown in
Figure 2–33.
•

If the system requires one connection to the network, connect
the ThinWire cable to the back end of the T-connector and a
terminator to the other end of the T-connector.
Make connections to the T-connector by pushing in and turning
the connector or terminator clockwise until it locks into place.

•

If the system is a link in a network and connects to two components, connect one ThinWire cable to one end of the T-connector
and connect a second ThinWire cable to the other end.
Connect the cables to the T-connector by pushing in and turning
the connectors clockwise until they lock into place.

Installation 2–51

Figure 2–33: Making a ThinWire Ethernet Connection at the DESQA Module

2–52 Installation

6. The ThinWire cable can be connected to any one of the following
devices:
•

A DEMPR which, in turn, can be connected to a baseband
Ethernet cable, and can connect up to eight ThinWire segments
in a LAN.

•

A DESPR which, in turn, can be connected to a baseband Ethernet cable, and connects to one ThinWire segment.

•

A ThinWire Ethernet adapter located in another VAX 4000,
MicroVAX or workstation.

7. Insert the T-connector into the ThinWire connector on the DESQA
module as shown in Figure 2–33. Push in and turn the T-connector
plug clockwise until it locks.
8. Use a cable clamp to form the upper cable in a loop approximately
10 cm (4 in) in diameter, as shown in Figure 2–34.

Installation 2–53

Figure 2–34: Form the Upper Cable in a Loop at the DESQA Module

The Digital Network and Communications publications explain the types
of network configurations possible.
CAUTION
Each ThinWire Ethernet segment must have only one
grounding point.

When the ThinWire cable is connected to a DEMPR or DESPR, the
ground is provided by the DEMPR or DESPR chassis. If you are using
a single-segment ThinWire Ethernet work area with no DEMPR or
DESPR, you may need to ground the ThinWire connector on the DESQA
Ethernet adapter.
NOTE
Contact your network manager or Digital service representative if you have questions about network configurations.

2–54 Installation

To ground a single-segment ThinWire network on the DESQA module, use a grounding clamp (P/N 90–08927–00) and an unshrouded Tconnector (P/N 12–25534–01) as shown in Figure 2–35. Contact your
Digital sales representative concerning these parts.
Figure 2–35: Grounding ThinWire Ethernet at the DESQA Module

2.6.6.2 Making a Standard Network Connection at the DESQA Module
Make a standard network connection at the DESQA module as follows:
NOTE
The DESQA module without the Ethernet connector
switch is configured at the factory for the ThinWire Ethernet. If you need to select the standard Ethernet port,
call your Digital service representative.

1. Find the Ethernet transceiver cable (see Figure 2–36). The cable has
a plug at one end and a socket at the other end.
2. Feed the plug under the cable management bracket from the rear of
the cabinet and insert it into the socket on the DESQA module.
Installation 2–55

Slide back the locking device on the socket to secure the connection.
Figure 2–37 shows a standard Ethernet network connection.
3. Connect the other end of the cable to one of the following devices:
•

An H4000 transceiver located on a traditional baseband Ethernet
cable.

•

A DELNI which, in turn, can be connected to a baseband Ethernet cable, and can connect up to eight systems in a LAN.

Figure 2–36: Ethernet Transceiver Cable

MLO-007143

2–56 Installation

Figure 2–37: Making a Standard Ethernet Connection at the DESQA Module

Installation 2–57

2.6.7 Connecting an Embedded TLZ-Series Tape Drive
To connect to an embedded TLZ-series tape drive perform the following:
1. Find the KZQSA In connector (see Figure 2–38).
Figure 2–38: KZQSA In Connector

2. Remove the protective cover from the connector.
3. Find the KZQSA cable labeled BC06P-2F (see Figure 2–39).
2–58 Installation

4. Feed the plug end of the cable under the cable management bracket
from the rear of the cabinet and plug it into the KZQSA In connector.
Secure the connection by pressing the bail latches until they snap
into place.
5. Find the KZQSA module and remove the terminator from the upper
connector on that module.
6. Insert the other end of the cable into the connector on the KZQSA
module.
Secure the connection by pressing the bail latches until they snap
into position.
Figure 2–39: KZQSA Cable

MLO-007151

Installation 2–59

2.6.8 Installing the R400X Expander
If you are not installing an R400X expander go to Section 2.7. If you are
installing an R400X expander with your VAX 4000 Model 500 system
perform the following:
1. Begin the installation of the R400X expander as explained in the
R400X Expander Installation manual. Make sure you connect the
expander cables that will be connected to your system.
2. Return to this manual to connect the following expander cables:
•

Q–bus cables

•

DSSI Cable

•

KZQSA external cable

•

Power control bus cable

•

Ground cable

3. Complete the installation of the expander as described in the expander manual.
4. Complete the installation of your system by completing the remaining installation procedures in this manual.

2.7 Cabling
2.7.1 Connecting the Q–bus Cables
To connect the Q–bus cables perform the following:
1. Find the two Q–bus cables labeled BC04V–09 (see Figure 2–40). One
end of each cable should be connected to the expander.
2. Connect the free ends of these two cables to the two Q–bus out
connectors on your system.
•

Connect the plug end of one of the cables to connector J1 (see
Figure 2–40).

•

Connect the socket end of the other cable to connector J2.

2–60 Installation

Figure 2–40: Q–bus Cable Connections

Installation 2–61

2.7.2 Connecting the DSSI Cable
To connect the DSSI cable perform the following:
1. Find the DSSI cable labeled BC21M-09. One end should be connected
to the expander.
2. Remove the DSSI terminator from the DSSI In/Out connector labeled
X (see Figure 2–41). Squeeze the spring clips at the top and bottom
of the terminator as you pull it straight out of the bus.
3. Connect the free end of the cable to the DSSI In/Out connector.
Tighten the screws by hand, then use a screwdriver to secure the
connection (see Figure 2–42).
4. Install the terminator (removed above) on the expander, if applicable.

2–62 Installation

Figure 2–41: DSSI Connector Terminator

Installation 2–63

Figure 2–42: Connecting the DSSI Cable

MLO-007160

2.7.3 Connecting the KZQSA External Cable
To connect the KZQSA external cable, perform the following:
1. Find the KZQSA external cable labeled BC06P–06. One end should
be connected to the expander.
2. Remove the terminator from the back connector on the KZQSA
module (see Figure 2–43).
3. Connect the free end of the cable to the connector on the KZQSA
module.
4. Install the terminator removed above on the expander if applicable.

2–64 Installation

Figure 2–43: KZQSA Module Terminator

Installation 2–65

2.7.4 Connecting the Power Control Bus Cable
To connect the power control bus cable perform the following:
CAUTION
To maintain system operation, do not use the power
control bus cable in a DSSI VAXcluster configuration.

1. Find the power control bus cable labeled 17–02632–01. One end
should be connected to the SI connector on the expander.
2. Connect the free end of the cable into the MO connector (see Figure 2–44.

2–66 Installation

Figure 2–44: Connecting the Power Control Bus Cable

Figure 2–45 shows a power bus configured with a host and two expanders.

Installation 2–67

Figure 2–45: Sample Power Bus Configuration

2.7.5 Connecting the Ground Cable
To connect the ground cable, perform the following:
1. Find the ground cable labeled 12–13756–A8. One end should be
connected to the expander.
2. Connect the free end of that cable to the ground wire out bolt (see
Figure 2–46).

2–68 Installation

Figure 2–46: Ground Cable

Installation 2–69

2.7.6 Connecting the System Power Cable
NOTE
This system contains an automatic voltage-select power
supply. Voltage selection is not required prior to installation.

CAUTION
Do not connect your computer system to an IT power
system (a power system without a directly grounded
neutral conductor). To prevent damage, your system
should be plugged into a dedicated (isolated) ground
circuit.

Connect the power cable to the system as follows:
1. Make sure the system ON/OFF switch ( | /O) is set to OFF (O) as
shown in Figure 2–47 and that all devices connected to the system
are turned off, such as:
Printer
External modem
Console terminal
Expander

2–70 Installation

Figure 2–47: Setting the Power Switch to OFF

2. Find the power cable shipped with the system.
3. Make sure the pronged end of the power cable plug matches the wall
outlet. Several types are shown in Figure 2–48.

Installation 2–71

Figure 2–48: Power Cables

4. Feed the opposite end of the cable to the system from the rear and
attach it to the power receptacle, as shown in Figure 2–49.
5. Insert the pronged end of the power cable into the wall outlet.

2–72 Installation

Figure 2–49: Attaching Power Cable to the System

Installation 2–73

2.8 Completing Installation
This section describes the final procedures to complete the installation
of the VAX 4000 Model 500 computer system.

2.8.1 Turn on the System and Select a Language
You are now ready to turn on the system and select a language. The
language you select controls only the language of the critical system
messages in the console program, which is part of the firmware contained
in the CPU. The CPU firmware enables you to give commands to the
system, and also generates error messages. CPU firmware is described
in the VAX 4000 Model 500 Technical Information manual.
CAUTION
Do not operate your system without the Digital slot covers in place. They protect the equipment, maintain
proper airflow for cooling, and provide EMI-RFI containment that meets international regulatory standards.

Turn on the system and select a language as follows:
1. Turn on the console terminal and wait until it has performed its
self-tests successfully.
2. Turn on the expander, if one is connected to your system.
Make sure the ac indicator on the expander power supply glows
orange. If the power control bus cable is installed, the expander
will not power up until the system is turned on.
3. Turn on the system by setting the power supply circuit breaker and
the system ON/OFF switch to position ON ( | ). The ac present
indicator, located on the power supply, will glow orange.
Within a few moments, the language selection menu is displayed on
the console terminal, as shown in Figure 2–50.
NOTE
If you are using a terminal that does not support multiple languages, this menu does not appear and the
system defaults to English (United States/Canada).

2–74 Installation

4. Select a language by typing the number corresponding to your choice
and pressing Return .
NOTE
If you do not select a language within 30 seconds, the
system defaults to English (United States/Canada).

Figure 2–50: Language Selection Menu
KA670-A Vn.n VMB n.n
1) Dansk
2) Deutsch (Deutschland/Österreich)
3) Deutsch (Schweiz)
4) English (United Kingdom)
5) English (United States/Canada)
6) Español
7) Français (Canada)
8) Français (France/Belgique)
9) Français (Suisse)
10) Italiano
11) Nederlands
12) Norsk
13) Português
14) Suomi
15) Svenska
(1..15):

After you select a language, the system runs power-up self-tests. Within
a few moments, the console terminal should display a series of numbers
as the system tests itself.
Figure 2–51 shows the console terminal display after self-tests have completed successfully. If the self-tests do not start or complete successfully,
the system may have a problem. For instructions on finding the source
of the problem, refer to the VAX 4000 Troubleshooting and Diagnostics
manual.

Installation 2–75

Figure 2–51: Successful Power-up
KA670-A Vn.n, VMB n.n
Performing normal system tests.
66..65..64..63..62..61..60..59..58..57..56..55..54..53..52..51..
50..49..48..47..46..45..44..43..42..41..40..39..38..37..36..35..
34..33..32..31..30..29..28..27..26..25..24..23..22..21..20..19..
18..17..16..15..14..13..12..11..10..09..08..07..06..05..04..03..
Tests completed.
>>>

To save the language selected, turn the power-up mode switch on the
console bulkhead assembly to run mode (see Figure 2–52).

2–76 Installation

Figure 2–52: Saving the Language

Slide the system into the closed position and secure the four thumbscrews.

Installation 2–77

2.8.2 After Installation
Read your system operation manual to learn how to use your system.
While optional, Digital strongly recommends that you run the diagnostic
software before you install system software or start factory-installed
VMS software for the first time. The diagnostics verify the system’s
configuration and check to see if each device is working properly. The
diagnostic software is on a tape cartridge labeled MV DIAG CUST TK50.
The VAX 4000 Troubleshooting and Diagnostics manual describes how to
run the diagnostic software.
If you have VMS FIS (factory installed software) on your system, refer
to the VMS Factory Installed Software User Guide for the startup
procedure. Otherwise, install the system software that comes with your
system.
NOTE
Systems that come with FIS have a yellow sticker on the
front panel of the ISE containing the FIS.

2–78 Installation

Chapter 3
Maintenance
3.1 Troubleshooting
Complete procedures for troubleshooting the Rack-Mountable VAX 4000
Model 500 computer system can be found by referring to VAX 4000 Model
500 Installation manual.

3.2 Removal/Replacement Procedures
WARNING
Whenever performing any removal or replacement procedure, ensure that the main ON/OFF power switch is
OFF and that the power cord is disconnected from the
wall receptacle.

This section describes the procedures for removing and replacing the
field replaceable units (FRUs) unique to the Rack-Mountable VAX 4000
Model 500 computer system. These FRUs and their part numbers are:
•

ON/OFF Switch Assembly (P/N 70-28603-02)

•

Storage Backplane Assembly (P/N 70-28602-02)

•

Power Card Assembly (P/N 70-28216-02)

•

Fans (P/N 70-26702-01)

•

Equipment Slides (P/N 12-34397-01)

Maintenance 3–1

3.2.1 ON/OFF Switch Assembly
Removal Procedure
Perform the steps in the following procedure to remove the ON/OFF
switch assembly (see Figure 3–1):
1. Turn the main ON/OFF power switch to OFF and disconnect the
power cord from the wall receptacle.
2. Release the two captive fasteners on each side of the bezel that secure
the chassis to the cabinet rails and pull the VAX 4000 forward.
3. Remove two 10-32 x 1/2 inch screws from the top of the chassis bezel
(see Figure 3–2).
4. Remove two 10-32 x 1/2 inch screws from the bottom of the chassis
bezel.
5. Remove the chassis bezel.
6. Remove the 12 6-32 x 3/8 inch screws securing the top cover to the
chassis.
7. Remove the top cover.
8. Disconnect the plug from the power supply.
9. Using a hex socket wrench, remove two 6-32 hex nuts that secure
the ON/OFF switch assembly to the chassis.
10. Remove the ON/OFF switch assembly from the chassis.
Replacement Procedure
To replace the ON/OFF switch assembly, perform the reverse of the
actions in the previous steps in reverse order.

3–2 Maintenance

Figure 3–1: ON/OFF Switch Assembly

Maintenance 3–3

3.2.2 Storage Backplane Assembly
Removal Procedures
Perform the steps in the following procedure to remove the storage
backplane assembly from the chassis:
1. Turn the main ON/OFF power switch to OFF and disconnect the
power cord from the wall receptacle.
2. Release the two captive fasteners on each side of the chassis that
secure the chassis to the cabinet rails.
3. Remove two 10-32 x 1/2 inch screws from the top of the chassis bezel.
4. Remove two 10-32 x 1/2 inch screws from the bottom of the chassis
bezel.
5. Remove the chassis bezel.
6. Loosen the captive 6-32 x 3/8 inch screw securing each of the integrated storage equipment (ISE) bezels (some may be blank bezel
covers).
NOTE
Be sure to note the bus identification number of each
ISE before removing the cover. Each ISE device must
be installed in its correct slot.

7. Remove the ISE bezels (see Figure 3–2).
8. Disconnect the cable from the bezel.
9. Loosen the two captive screws that secure the ISE device to the
chassis.
10. Remove all ISE devices and set aside on a clear work surface.
11. If a TK70 tape drive is installed, slide the device part way out; reach
in through the top of the chassis and remove the control cable by
pressing the two connector locking tabs. Move the cable to the rear.
12. Slide the TK70 tape drive out and set it aside on a clear work
surface.

3–4 Maintenance

Figure 3–2: Removing the ISE Devices

CAUTION
When removing cables from the backplane assembly,
label the cables and connectors to ensure their correct replacement.

Maintenance 3–5

13. Remove the two DSSI and two SCSI cables from the storage backplane (see Figure 3–3).
CAUTION
When removing the storage backplane assembly, be
sure that the all connector extractors will not be interfering with the side of the chassis as the assembly
is removed from the chassis.

14. Remove the two cables (P/N 17-02954-01 and 17-02954-02) from the
storage backplane.
15. Unplug the four power card connectors from the storage backplane
(pull the cables down and away from the storage backplane). See
Figure 3–3.

3–6 Maintenance

Figure 3–3: Storage Backplane Assembly Showing the DSSI, SCSI and
Power Connections

Maintenance 3–7

16. Pull the chassis forward to the lock position.
17. Remove the metal plug button from the side of the storage backplane
assembly (see Figure 3–4).
18. Remove the two 6-32 x 3/8 inch screws from the storage backplane
assembly cover panel (see Figure 3–4).
19. Slide the storage backplane assembly through the opening in the
chassis to your right (see Figure 3–4).
Replacement Procedure
To replace the storage backplane assembly, perform the reverse actions
of the previous steps in reverse order.
CAUTION
When installing the storage backplane assembly, be sure
that the assembly is properly aligned to the rails. Also,
ensure that all connector extractors are not interfering
with the side of the chassis as the assembly is pushed in
place.

3–8 Maintenance

Figure 3–4: Backplane Assembly

Maintenance 3–9

3.2.3 Power Card Assembly
Removal Procedure
Perform the steps in the following procedure to remove the power card
assembly:
1. Turn the main ON/OFF power switch to OFF and disconnect the
power cord from the wall receptacle.
2. Release the two captive fasteners on each side of the bezel that secure
the chassis to the cabinet rails.
3. Remove two 10-32 x 1/2 inch screws from the top of the chassis bezel.
4. Remove two 10-32 x 1/2 inch screws from the bottom of the chassis
bezel.
5. Remove the bezel.
6. Loosen the captive 6-32 x 3/8 inch screw securing each ISE bezel.
7. Remove the ISE bezel and cables.
8. Loosen the two captive screws that secure each ISE device to the
chassis.
9. Remove the ISE device and set it aside on a clear work surface.
10. Remove the power card connector from the storage backplane assembly (see Figure 3–5).
11. Remove the lower right hand device guide by lifting the front and
then the rear of the slide up (see Figure 3–5).
12. Remove the device guide.
13. Reach into the ISE opening and grasp the power card assembly. Lift
the power card straight up and remove (see Figure 3–5).
Replacement Procedure
To replace the power card assembly, perform the reverse of the actions
in the previous steps in reverse order.
NOTE
After installing the power card assembly in the connector, dress the cable so that it will be to the right of (behind) the lower right-hand device guide when the guide
is installed.

3–10 Maintenance

Figure 3–5: Power Card Assembly

Maintenance 3–11

3.2.4 Fans
Removal Procedures
Perform the steps in the following procedure to remove a fan:
1. Turn the main ON/OFF power switch to OFF and disconnect the
power cord from the wall receptacle.
2. Release the two captive fasteners on each side of the bezel that secure
the chassis to the cabinet rails.
3. Pull the chassis all the way forward on the slides.
4. Remove the two 10-32 hex nuts from the bottom of each of the
chassis mounting brackets (see Figure 2–5 for location of the chassis
mounting brackets).
WARNING
Use sufficient personnel and proper equipment when
lifting or moving the Rack-Mountable VAX 4000
Model 500 system. The fully loaded system weighs
53.5 kg (118 lb).

5. Lift the chassis straight up so that the eight 10-32 mounting studs
are clear of the equipment slides.
6. Carefully lower the chassis onto a flat and clear work surface. Block
the chassis, if necessary, to clear the mounting screws.
7. Release the two captive screws on the fan module assembly (see
Figure 3–6) and then grasp the handle and pull upwards.
8. Place the fan module assembly on a work surface with the fans
exposed (see Figure 3–6).
9. Remove the 6-32 hex nut securing the fan retaining bracket and
remove the bracket (see Figure 3–6).
10. Disconnect the power cord connector of the defective fan (see Figure 3–6).
11. Remove the fan by sliding the fan to the side to clear the two metal
retaining feet (see Figure 3–6).

3–12 Maintenance

Replacement Procedures
To replace the fan, perform the reverse of the actions in the previous
steps in reverse order.
Figure 3–6: Fan Assembly

Maintenance 3–13

3.2.5 Equipment Slides
Removal Procedure
Perform the steps in the following procedure to remove damaged equipment slides:
1. Turn the main ON/OFF power switch to OFF and disconnect the
power cord from the wall receptacle.
2. Release the two captive fasteners on each side of the bezel that secure
the chassis to the cabinet rails.
3. Pull the chassis all the way forward on the slides.
4. Remove the two 10-32 hex nuts from the bottom of each of the chassis
mounting brackets (see Chapter 2, Figure 2–5).
WARNING
Use sufficient personnel when lifting or moving the
Rack-Mountable VAX 4000 Model 500 system. The
fully loaded system weighs 53.5 kg (118 lb).

5. Lift the chassis straight up so that the eight 10-32 mounting studs
are clear of the equipment slides.
6. Carefully lower the chassis onto a flat and clear work surface. Block
the chassis, if necessary, to clear the mounting screws.
7. Remove the eight 1/4-20 inch screws securing the equipment slide to
the front and rear rails of the cabinet, and set aside.
Replacement Procedure
To replace a slide, follow the procedures in Chapter 2, Section 2.4.1.

3–14 Maintenance