Digital PDFs

EK-R7000-IN-A01

December 1993

142 pages

Original

0.7MB

Document:	Rackmount DEC 7000 AXP and VAX 7000 Systems Install/Owner's Guide
Order Number:	EK-R7000-IN
Revision:	A01
Pages:	142
Original Filename:

OCR Text

Rackmount DEC 7000 AXP
and VAX 7000 Systems
Installation/Owner’s Guide
Order Number: EK-R7000-IN.A01

Revision/Update Information:

This is a new manual

December 1993
The reproduction of this material, in part or whole, is strictly prohibited. For copy information,
contact the Digital Education and Training Department, Digital Equipment Corporation, Maynard,
Massachusetts 01754.
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.
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.
Any changes or modifications made to this equipment may void the user’s authority to operate this
equipment.
Operation of this equipment in a residential area may cause interference in which case the user
at his own expense will be required to take whatever measures may be required to correct the
interference.

© Digital Equipment Corporation 1993. All Rights Reserved.
Printed in U.S.A.
The following are trademarks of Digital Equipment Corporation: AXP, DEC, VAX, VAX
DOCUMENT, and the DIGITAL Logo.
All other trademarks and registered trademarks are the property of their respective holders.

This document was prepared using VAX DOCUMENT Version 2.1.

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

1 Introduction
1.1
1.2
1.2.1
1.2.2
1.2.3
1.3
1.3.1
1.3.2
1.3.3
1.3.4
1.4
1.4.1
1.4.2

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Laser System Bus (BA700-AA) Chassis . . . . . . . . . . . . . . .
LSB Chassis Card Cage . . . . . . . . . . . . . . . . . . . . . . . .
LSB Chassis Control Panel . . . . . . . . . . . . . . . . . . . . .
LSB Chassis Power Supply . . . . . . . . . . . . . . . . . . . . .
Extended Memory Interface (BA601-AC) Chassis . . . . . . .
XMI Chassis Card Cage . . . . . . . . . . . . . . . . . . . . . . . .
XMI Chassis Control Panel . . . . . . . . . . . . . . . . . . . . .
XMI Chassis Power Supply . . . . . . . . . . . . . . . . . . . . .
XMI Chassis I/O Bulkhead . . . . . . . . . . . . . . . . . . . . . .
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LSB Chassis Specifications . . . . . . . . . . . . . . . . . . . . .
XMI Chassis Specifications . . . . . . . . . . . . . . . . . . . . .

1–1
1–3
1–4
1–5
1–7
1–8
1–9
1–10
1–13
1–16
1–17
1–17
1–18

2 Installation
2.1
2.2
2.2.1
2.2.2
2.3
2.4
2.4.1
2.4.2
2.5
2.5.1
2.5.2
2.6
2.6.1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Site Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Environmental Requirements . . . . . . . . . . . . . . . . . . .
Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . .
Checking the Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the LSB Chassis . . . . . . . . . . . . . . . . . . . . . . . .
Installing the LSB Chassis Slides . . . . . . . . . . . . . . . .
Installing the LSB Chassis on the Slides . . . . . . . . . . .
Installing the XMI Chassis . . . . . . . . . . . . . . . . . . . . . . . .
Installing the XMI Chassis Slides . . . . . . . . . . . . . . . .
Installing the XMI Chassis on the Slides . . . . . . . . . . .
Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the I/O Cable (PN 17-03085-02) . . . . . . . . .

2–1
2–2
2–2
2–2
2–3
2–5
2–6
2–11
2–13
2–14
2–18
2–20
2–20

iii

2.6.2
2.6.3
2.7
2.7.1
2.7.2

Connecting the DEC Power Bus Cable (PN
70-31534-01) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Console Cable (PN 17-01364-02) . . . . .
Connecting the Power Cords . . . . . . . . . . . . . . . . . . . . . . .
LSB Chassis Power Cord (PN 17-00083-37) . . . . . . . . .
XMI Chassis Power Cord . . . . . . . . . . . . . . . . . . . . . . .

2–23
2–24
2–25
2–25
2–25

3 Operation
4 Troubleshooting
5 Removal and Replacement
5.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2
LSB Chassis Components . . . . . . . . . . . . . . . . . . . . . . . . .
5.2.1
Front Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2.2
Extending the LSB Chassis for Service . . . . . . . . . . . .
5.2.3
Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2.4
CPU and Memory Modules . . . . . . . . . . . . . . . . . . . . .
5.2.5
I/O Port Controller (IOP) Module (E2044-AA) . . . . . . .
5.2.6
Left Side Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2.7
48 Vdc Power Supply (PN 30-39348-02) . . . . . . . . . . . .
5.2.8
Control Panel (PN 54-21719-01) . . . . . . . . . . . . . . . . . .
5.2.9
Blower Assembly (PN 12-41009-01) . . . . . . . . . . . . . . .
5.2.10
AC Input Box (PN 30-39579-01) . . . . . . . . . . . . . . . . . .
5.3
XMI Chassis Components . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.1
Front Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.2
Extending the XMI Chassis for Service . . . . . . . . . . . .
5.3.3
Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.4
Bottom Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.5
Control Panel Bezel (PN 70-22117-01) . . . . . . . . . . . . .
5.3.6
Control Panel Module (PN 54-16574-02) . . . . . . . . . . .
5.3.7
XTC Timing Module (PN 70-31509-01) . . . . . . . . . . . . .
5.3.8
AC Front End Trays (PN 70-27334-01) . . . . . . . . . . . .
5.3.9
+5 Vdc Regulator Trays (PN 70-29046-01 and
70-29046-02) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.10
Sequencer and Auxiliary DC Voltage Regulator Tray
(PN 70-29046-03) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.11
3.3 Vdc/-5.2 Vdc Regulator Tray (PN 70-29046-04) . . .
5.3.12
24 Vdc Fan (PN 12-23374-07) . . . . . . . . . . . . . . . . . . .
5.3.13
Airflow Sensors (PN 12-36060-01) . . . . . . . . . . . . . . . .
5.3.14
AC Input Assembly (PN 70-31008-01) . . . . . . . . . . . . .
iv

5–1
5–2
5–2
5–4
5–6
5–8
5–10
5–12
5–14
5–16
5–20
5–22
5–24
5–24
5–26
5–28
5–29
5–31
5–33
5–35
5–37
5–42
5–47
5–50
5–52
5–54
5–56

5.3.15
5.3.16
5.3.17

TF85 Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TF85 Interface Board . . . . . . . . . . . . . . . . . . . . . . . . . .
RRD42 CD-ROM Reader . . . . . . . . . . . . . . . . . . . . . . .

5–59
5–60
5–61

A Option Installation
A.1
A.2
A.3
A.4

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessing the XMI Card Cage . . . . . . . . . . . . . . . . . . . . . .
Cabling of Options Installed in the XMI Chassis . . . . . . . .
Installing the 2T-CIXCD-RA Option . . . . . . . . . . . . . . . . . .

A–1
A–1
A–4
A–6

B Field Replaceable Units
C Send Us Your Comments
Figures
1–1
1–2
1–3
1–4
1–5
1–6
1–7
2–1
2–2
2–3
2–4
2–5
2–6
2–7
2–8
2–9
2–10

Two DEC 7000 AXP and VAX 7000 Systems in an
H9702 Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LSB (BA700-AA) Chassis with Covers Removed . . . . .
LSB Chassis Control Panel . . . . . . . . . . . . . . . . . . . . .
XMI (BA601-AC) Chassis with Top Cover Removed . . .
XMI Chassis Control Panel . . . . . . . . . . . . . . . . . . . . .
Power Supply Tray Assemblies (XMI Chassis Bottom
View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I/O Bulkhead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents of Shipping Cartons . . . . . . . . . . . . . . . . . . .
LSB Chassis Equipment Mounting Slides . . . . . . . . . .
LSB Chassis Slide Mounting Pattern . . . . . . . . . . . . . .
Installing the Equipment Mounting Slides (Rear View
of Left Slide with Slide Extended) . . . . . . . . . . . . . . . .
Installing the LSB Chassis on the Slides . . . . . . . . . . .
XMI Chassis Equipment Mounting Slides . . . . . . . . . .
XMI Chassis Slide Mounting Pattern . . . . . . . . . . . . . .
Installing the Equipment Mounting Slides (Rear View
of Left Slide with Slide Extended) . . . . . . . . . . . . . . . .
Installing the XMI Chassis on the Slides . . . . . . . . . . .
Connecting the I/O Cable to the IOP Module . . . . . . . .

1–2
1–3
1–5
1–8
1–10
1–15
1–16
2–4
2–6
2–8
2–9
2–12
2–14
2–16
2–17
2–19
2–21

2–11
2–12
5–1
5–2
5–3
5–4
5–5
5–6
5–7
5–8
5–9
5–10
5–11
5–12
5–13
5–14
5–15
5–16
5–17
5–18
5–19
5–20
5–21
5–22
5–23
5–24
5–25
5–26
5–27
5–28
5–29
5–30
A–1
A–2
A–3

Connecting the I/O Cable to the XMI Bulkhead
Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DEC Power Bus and Console Cable Connectors . . . . . .
Removing the Front Bezel from the LSB Chassis . . . .
Extending the LSB Chassis . . . . . . . . . . . . . . . . . . . . .
Removing the Top Cover . . . . . . . . . . . . . . . . . . . . . . .
Removing the CPU and Memory Modules . . . . . . . . . .
Removing the IOP Module . . . . . . . . . . . . . . . . . . . . . .
Removing the Left Side Cover . . . . . . . . . . . . . . . . . . .
Removing the 48 Vdc Power Supply . . . . . . . . . . . . . . .
DEC Power Bus and Console Cable Connectors . . . . . .
Removing the Front Panel . . . . . . . . . . . . . . . . . . . . . .
Removing the Control Panel . . . . . . . . . . . . . . . . . . . .
Removing the Blower Assembly . . . . . . . . . . . . . . . . . .
Removing the AC Input Box . . . . . . . . . . . . . . . . . . . .
Removing the Front Bezel from the XMI Chassis . . . .
Extending the XMI Chassis . . . . . . . . . . . . . . . . . . . . .
Removing the Top Cover . . . . . . . . . . . . . . . . . . . . . . .
Removing the Bottom Cover . . . . . . . . . . . . . . . . . . . .
Removing the Control Panel Bezel . . . . . . . . . . . . . . . .
Removing the Control Panel Module . . . . . . . . . . . . . .
Battery and XTC Connections . . . . . . . . . . . . . . . . . . .
AC Front End Tray . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Top Connectors . . . . . . . . . . . . . . . . . . .
Power Supply Top Interconnect Diagram . . . . . . . . . . .
Removing the AC Front End Trays . . . . . . . . . . . . . . .
+5 Vdc Regulator Trays . . . . . . . . . . . . . . . . . . . . . . .
Removing a Power Supply Tray . . . . . . . . . . . . . . . . . .
Sequencer and Auxiliary DC Voltage Regulator
Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Vdc/-5.2 Vdc Regulator Tray . . . . . . . . . . . . . . . . . .
Removing the Fan Assembly . . . . . . . . . . . . . . . . . . . .
Airflow Sensors on Rear of Card Cage . . . . . . . . . . . . .
Removing the AC Input Assembly . . . . . . . . . . . . . . . .
Top Front View of Card Cage Slot Designations . . . . . .
Bottom View of Card Cage Slot Designations . . . . . . . .
2T-CIXCD-RA Option Kit Contents . . . . . . . . . . . . . . .

2–22
2–23
5–3
5–5
5–7
5–9
5–11
5–13
5–15
5–17
5–18
5–19
5–21
5–23
5–25
5–27
5–28
5–30
5–32
5–34
5–36
5–37
5–39
5–40
5–41
5–43
5–46
5–48
5–50
5–53
5–55
5–58
A–3
A–5
A–6

A–4

Installing the 2T-CIXCD-RA Connectors and
Jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–9

Card Cage Modules . . . . . . . . . . . . . . . . . . . . . . . . . . .
LSB Control Panel Push-button Switches . . . . . . . . . .
LSB Control Panel Status LED Indicators . . . . . . . . . .
XMI Options and Cabinet Kits . . . . . . . . . . . . . . . . . . .
Control Panel Keyswitches . . . . . . . . . . . . . . . . . . . . . .
Restart Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
XMI Control Panel Status LED Indicators . . . . . . . . . .
XMI Power Supply Tray Assemblies . . . . . . . . . . . . . .
LSB Chassis Specifications . . . . . . . . . . . . . . . . . . . . .
XMI Chassis Specifications . . . . . . . . . . . . . . . . . . . . .
LSB Chassis Troubleshooting . . . . . . . . . . . . . . . . . . .
XMI Chassis Troubleshooting . . . . . . . . . . . . . . . . . . .
LSB Chassis Field Replaceable Units . . . . . . . . . . . . .
XMI Chassis Field Replaceable Units . . . . . . . . . . . . .

1–4
1–6
1–6
1–9
1–11
1–12
1–12
1–14
1–17
1–18
4–2
4–3
B–1
B–2

Tables
1–1
1–2
1–3
1–4
1–5
1–6
1–7
1–8
1–9
1–10
4–1
4–2
B–1
B–2

vii

Preface
The Rackmount DEC 7000 AXP and VAX 7000 Systems Installation/Owner’s
Guide provides information to properly trained Digital service personnel and
customer maintenance personnel on the installation of the rackmount DEC 7000
AXP and VAX 7000 systems, and information on the operation and maintenance
of the equipment.

Organization
The Rackmount DEC 7000 AXP and VAX 7000 Systems Installation/Owner’s
Guide is organized in the following manner:
•

Chapter 1, Introduction – Provides an overview of the rackmount DEC
7000 AXP and VAX 7000 systems, and describes the major chassis, control
panels, and power supply trays that make up this system. Specifications
for the LSB (BA700-AA) chassis and the XMI (BA601-AC) chassis are also
included.

•

Chapter 2, Installation – Discusses site preparation, environmental and
electrical requirements, checking the shipment, installing the LSB and XMI
chassis, and cabling the two chassis that make up the system.

•

Chapter 3, Operation – Describes how to turn on and turn off the
equipment.

•

Chapter 4, Troubleshooting – Describes the performance of various steps
in basic troubleshooting and routine maintenance procedures.

•

Chapter 5, Removal and Replacement – Describes the removal and
replacement procedures for the field replaceable units (FRUs) that are unique
to the rackmount DEC 7000 AXP and VAX 7000 systems.

•

Appendix A, Field Replaceable Units – Lists all FRUs and their part
numbers for the LSB and XMI chassis.

•

Appendix B, Option Installation – Contains installation instructions for
the options that are available for the rackmount DEC 7000 AXP and VAX
7000 systems.

Conventions
The following conventions are used in this document:
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
equipment.

WARNING

A warning contains information essential to the safety of personnel.

The following symbols appear on the chassis. 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.

Related Documentation
For more information on the rackmount DEC 7000 AXP and VAX 7000 systems,
refer to the following documentation:
DEC 7000 AXP System/VAX 7000 Installation Guide

EK-700EB-IN

DEC 7000 AXP System/VAX 7000 Site Preparation Guide

EK-7000B-SP

DEC 7000 AXP System/VAX 7000 Operations Manual

EK-7000B-OP

DEC 7000 AXP System/VAX 7000 Basic Troubleshooting

EK-7000B-TS

DEC 7000 AXP System/VAX 7000 Platform Service Manual

EK-7000A-SV

DEC 7000 AXP System/VAX 7000 System Service Manual

EK-7002B-SV

DEC 7000 AXP System Pocket Service Guide

EK-7700A-PG

VAX 7000 Pocket Service Guide

EK-7000A-PG

DEC 7000 AXP System Advanced Troubleshooting

EK-7701A-TS

VAX 7000 Advanced Troubleshooting

EK-7001A-TS

DEC 7000 AXP System/VAX 7000 Console Reference Manual

EK-70C0B-TM

KA7AA CPU Technical Manual

EK-KA7AA-TM

KN7AA CPU Technical Manual

EK-KN7AA-TM

MS7AA Memory Technical Manual

EK-MS7AA-TM

I/O System Technical Manual

EK-70I0A-TM

Platform Technical Manual

EK-7000A-TM

1
Introduction

1.1 General
The rackmount DEC 7000 AXP and VAX 7000 systems (see Figure 1–1) consist
of two or more interlocked rackmountable chassis that attach to the rails within
a 36-inch deep RETMA cabinet. The laser system bus (LSB) chassis (BA700AA) contains the CPU and memory boards, along with an I/O port controller
(IOP) that multiplexes to support up to four XMI I/O chassis. The LSB chassis
includes a 48 Vdc power supply and a blower assembly to move the cooling air.
In addition, the chassis has its own circuit breaker and power cord that requires
a single-phase, 200-240 Vac (nominal), 50-60 Hz power source. The LSB chassis
has a power status indicator as part of the operator control panel.
The extended memory interface (XMI) chassis (BA601-AC) mounts above the
LSB chassis in the cabinet and can accept up to 12 XMI technology I/O modules.
Other rackmountable I/O chassis for modules using different I/O bus types may be
added to this product family in the future. The XMI chassis also accommodates
up to five quad and three dual I/O panels. The XMI chassis includes six power
supply modules and fans for moving the cooling air. The XMI chassis has its
own circuit breaker and power cord that requires a single-phase, 200-240 Vac
(nominal), 50-60 Hz power source. The XMI chassis also has a power status
indicator as part of the control panel.
In an H9702 cabinet, a power controller is mounted behind each LSB chassis
to allow the connection of both chassis to an external source of 200-240 Vac
(nominal), and also to sequence the power application and removal to this system.
The LSB and XMI chassis are interconnected with a flat ribbon cable between the
I/O port controller (IOP) in the LSB chassis and the XMI backplane in the XMI
chassis.

Introduction 1–1

Introduction

Figure 1–1 Two DEC 7000 AXP and VAX 7000 Systems in an H9702 Cabinet

MK−2339−01

1–2 Introduction

Introduction

1.2 Laser System Bus (BA700-AA) Chassis
The LSB (BA700-AA) chassis, shown in Figure 1–2, contains a card cage, a 48
Vdc power supply, a control panel, and a blower assembly.
The following sections describe the basic components of the LSB chassis.
Figure 1–2 LSB (BA700-AA) Chassis with Covers Removed
Blower Assembly
Card Cage
IOP Module
Control Panel

48 Vdc Power Supply
MK−2339−02

Introduction 1–3

Introduction

1.2.1 LSB Chassis Card Cage
The LSB chassis card cage contains five slots. One slot is reserved for the I/O
port controller (IOP) module and the other four slots are available for either CPU
or memory modules. The system must have at least an IOP module, one CPU
module, and one memory module in order to function.
Rackmount DEC 7000 AXP and VAX 7000 systems can range from a single CPU
with three memory modules to three CPUs with a single memory module.
Table 1–1 contains a list of the different types of modules that can be installed in
the rackmount DEC 7000 AXP and VAX 7000 systems, and a description of each.
Table 1–1 Card Cage Modules
Option No.

Part No.

Description

IOP

E2044-AA

I/O port controller module

KN7AA

E2040-AA

DEC 7000 AXP CPU module

KA7AA

E2045-AA

VAX 7000 CPU module

MS7AA-AA

E2043-AA

64-MB memory module

MS7AA-BA

E2043-BA

128-MB memory module

MS7AA-CA

E2043-CA

256-MB memory module

MS7AA-DA

E2046-AA

512-MB memory module

1–4 Introduction

Introduction

1.2.2 LSB Chassis Control Panel
The rackmount DEC 7000 AXP and VAX 7000 systems have a control panel
located on the front of the LSB chassis (see Figure 1–3). The LSB chassis control
panel consists of three push-button switches with integral LED indicators and
three separate LED indicators.
Figure 1–3 LSB Chassis Control Panel

On/Off

Secure

Restart

Power
Run
Fault

MK−2339−03

Introduction 1–5

Introduction

Table 1–2 lists the three push-button switches and describes their functions.
Table 1–2 LSB Control Panel Push-button Switches
Switch

Position

LED Status
/Color

Description

On/Off

Out

Off

The 48 Vdc power supply is turned off.

On (Green)

The 48 Vdc power supply is turned on and
48 Vdc is present.

Out

Off

Indicates to the console firmware that
certain privileged console commands are
allowed.

On (Green)

Indicates to the console firmware that
certain privileged console commands are not
allowed.

Out

Off

The system restart signal is not being
asserted.

On (Red)

The system restart signal is being asserted.

Secure

Restart
(Momentary
switch)

The LSB control panel also includes three status LED indicators. Table 1–3 lists
these LEDs and describes their functions.
Table 1–3 LSB Control Panel Status LED Indicators
LED Name/Color

Function

Power
(Green)

Lit when the 48 Vdc power supply is on and the output is within
specifications.
If not lit after the On/Off switch is depressed, the power supply has
detected an overvoltage or overcurrent condition.

Run
(Green)

Lit when console mode is terminated and system program execution
begins.
Not lit during power sequencing and when in console mode.

Fault
(Amber)

Blinks at a slow 2-second rate during the power-up sequence and
at a fast .5-second rate during the power-down sequence. After the
power-up sequence, it stays lit until all LSB and I/O modules have
passed self-test, and then goes out.
Being lit during normal operation indicates a blower failure, an
LSB or I/O module not passing self-test, or a power supply fault.

1–6 Introduction

Introduction

1.2.3 LSB Chassis Power Supply
A 48 Vdc power supply is located on the left side of the LSB chassis. This power
supply provides 48 Vdc to the control panel, the LSB backplane, and the chassis
blower.

Introduction 1–7

Introduction

1.3 Extended Memory Interface (BA601-AC) Chassis
The XMI (BA601-AC) chassis, shown in Figure 1–4, includes a control panel, a
single 14-slot card cage, a power supply consisting of 6 tray assemblies, 2 fans,
and an I/O bulkhead. The front panel of the XMI chassis also contains an area
for installing either an RRD42 CD-ROM reader (DEC 7000 AXP only) or a TF85
tape drive (VAX 7000 only). The rear of the chassis contains an interface area for
connecting external cables.
The following sections describe the basic components of the XMI chassis.
Figure 1–4 XMI (BA601-AC) Chassis with Top Cover Removed
Fans
Power Supply
Card Cage

Space for TF85
or RRD42

Control Panel

MK−2339−04

1–8 Introduction

Introduction

1.3.1 XMI Chassis Card Cage
The XMI chassis incorporates a 14-slot card cage that houses the two LSB I/O
interface cards and up to 12 I/O modules. The XMI device adapter boards are
housed in this card cage. Other modules are available for installation in the XMI
bus, such as: disk controllers, network interfaces, and bus adapters. Table 1–4
lists the options and cabinet kits that are available for installation in the XMI
chassis.
Table 1–4 XMI Options and Cabinet Kits
Interface

Option

BA601 Cabinet Kit

I/O Panel

Ethernet

DEMNA-M

CK-DEMNA-RA

1 Dual

FDDI

2T-DEMFA-RA

Included in option

1 Quad

DSA

KDM70-AA

CK-KDM60-RA

2 Quad

DSSI

KFMSA-BA 1

CK-KFMSA-RB

1 Quad

SCSI

KZMSA-AB

CK-KZMSA-RB

1 Dual

2T-CIXCD-RA

Included in option

1 Quad

1 For the VAX 7000 only.
2 For the DEC 7000 AXP only.

Introduction 1–9

Introduction

1.3.2 XMI Chassis Control Panel
The rackmount DEC 7000 AXP and VAX 7000 systems have a secondary control
panel located on the front of the XMI chassis (see Figure 1–5). The control panel
incorporates three switches and nine LEDs.
Figure 1–5 XMI Chassis Control Panel
Status LED
Indicators

Upper Keyswitch

EEPROM
Lower Keyswitch

2
1

Restart Switch
MK−2339−05

The XMI chassis control panel incorporates two rotary switches (an upper
keyswitch and a lower keyswitch) and a push-button restart switch. Table 1–5
lists the upper and lower keyswitches and describes their functions. Table 1–6
describes the functions of the restart switch.

1–10 Introduction

Introduction

Table 1–5 Control Panel Keyswitches
Symbol

Position

Light/
Color

Effect

Upper Keyswitch
O

(Off)

No Light

Power to system bus is removed, but ac
power and 12 Vdc power is still on.

Standby

Red

Not used.

Enable

Yellow

Not used.

Secure1

Green

Indicates that power is applied to the
entire system. Used for normal operation.
Disables restart switch.

Lower Keyswitch
Update

Red

Not used.

Halt

Yellow

Not used.

Auto Start

Green

Not used.

1 Normal position

Introduction 1–11

Introduction

Table 1–6 Restart Switch
Upper Keyswitch

Lower Keyswitch

Restart Switch Function

Enable

Update or Halt

Runs self-test, then halts.

Enable

Auto Start

Runs self-test, then reboots the operating
system.

Standby or "O" OFF

Any position

Does not function.

The XMI control panel also includes three status LED indicators. Table 1–7 lists
these LEDs and describes their functions.
Table 1–7 XMI Control Panel Status LED Indicators
Symbol

Name

State/Color

Indication

Run

On (Green)

System is executing operating system
instructions on at least one processor.

Off

System is either in console mode or is
turned off.

Battery

NA (Green)

(This function is not implemented on
the rackmount DEC 7000 AXP and
VAX 7000 systems.)

Fault

On (Red)

Self-test is in progress. If light does
not go off, system has a hardware
fault.

Off

Self-test has completed successfully, or
the system is turned off.

1–12 Introduction

Introduction

1.3.3 XMI Chassis Power Supply
The XMI power supply consists of six separate tray assemblies. The system
includes two ac-to-dc front end modules and four dc-to-dc regulator trays. The dcto-dc regulator trays include a 5 Vdc regulator master, a 5 Vdc regulator booster,
a sequencer and auxiliary dc voltage regulator, and a 3.3 Vdc/-5.2 Vdc regulator.
Each of these trays contain field replaceable units (FRUs) that are described in
Chapter 5.
Table 1–8 lists the six power supply tray assemblies along with the description
and location of each. Figure 1–6 shows the location of these six power supply
assemblies.

Introduction 1–13

Introduction

Table 1–8 XMI Power Supply Tray Assemblies
Tray Assembly

Description

Location1

ac-to-dc converters (2)

Provides 300 Vdc to feed into regulators

A+B

5 Vdc regulator

+5 Vdc master supply

5 Vdc regulator

+5 Vdc booster supply

Sequencer and auxiliary dc
voltage regulator

Consists of:

3.3 Vdc/-5.2 Vdc regulator

1 See Figure 1–6

1–14 Introduction

•

Power sequencing logic

•

+12 Vdc supply

•

-12 Vdc supply

•

+24 Vdc supply (fans)

•

-2 Vdc supply

Consists of:
•

+3.3 Vdc supply (not used for the
rackmount DEC 7000 AXP and VAX
7000 systems)

•

-5.2 Vdc supply

Introduction

Figure 1–6 Power Supply Tray Assemblies (XMI Chassis Bottom View)
Front

Power Supply Tray Assemblies
MK−2339−06

Introduction 1–15

Introduction

1.3.4 XMI Chassis I/O Bulkhead
The XMI chassis has an I/O bulkhead (see Figure 1–7) located at the rear of the
chassis. The I/O bulkhead is used for installing the I/O panels associated with
the different I/O option cards that can be installed in the XMI card cage. The I/O
bulkhead can accommodate five quad and three dual I/O panels. This allows the
rackmount DEC 7000 AXP and VAX 7000 systems to be connected to external
devices.
Figure 1–7 I/O Bulkhead

MK−2339−07

1–16 Introduction

Introduction

1.4 Specifications
The following sections contain the physical, electrical, and environmental
specifications for the LSB (BA700-AA) chassis and the XMI (BA601-AC) chassis.

1.4.1 LSB Chassis Specifications
Table 1–9 lists the LSB chassis specifications.
Table 1–9 LSB Chassis Specifications
Physical Characteristics
Enclosure

Bezel height

48.9 cm (19.25 in.)

Total height including
left-side hanger

53.34 cm (21 in.)

Width

48.26 cm (19 in.)

Depth

78.74 cm (31 in.)

Weight

45 kg (100 lb)
maximum

Electrical Requirements
AC Input Voltage

200-240 Vrms nominal
single phase

AC Input Current

10 Arms

Line Frequency

50 Hz or 60 Hz nominal

Mating Receptacle

NEMA 6-15R

Environmental Requirements
Operating Temperature

15°C to 28°C (59°F to 82°F)

Relative Humidity

20% to 80% noncondensing

Storage Temperature

-40°C to 66°C (-40°F to 151°F)

Relative Humidity

10% to 95% noncondensing

Introduction 1–17

Introduction

1.4.2 XMI Chassis Specifications
Table 1–10 lists the XMI chassis specifications.
Table 1–10 XMI Chassis Specifications
Physical Characteristics
Enclosure

Height

40.0 cm (15.75 in.)

Width

48.26 cm (19 in.)

Depth

91.44 cm (36 in.)

Weight

55 kg (121 lb) maximum

Electrical Requirements
AC Input Voltage

200-240 Vrms nominal
single phase

AC Input Current

6 Arms

Line Frequency

50 Hz or 60 Hz nominal

Mating Receptacle

NEMA L6-15R

Environmental Requirements
Operating Temperature

15°C to 28°C (59°F to 82°F)

Relative Humidity

20% to 80% noncondensing

Storage Temperature

-40°C to 66°C (-40°F to 151°F)

Relative Humidity

10% to 95% noncondensing

1–18 Introduction

2
Installation

2.1 Introduction
This chapter discusses the installation of the rackmount DEC 7000 AXP and VAX
7000 systems. Topics covered in this chapter include:
•

Site preparation

•

Checking the shipment

•

Installing the LSB (BA700-AA) chassis

•

Installing the XMI (BA601-AC) chassis

•

Cabling

•

Connecting the power cords

Installation 2–1

Installation

2.2 Site Preparation
The following sections describe the environmental and electrical requirements for
the rackmount DEC 7000 AXP and VAX 7000 systems.

2.2.1 Environmental Requirements
The following list contains the environmental requirements for the rackmount
DEC 7000 AXP and VAX 7000 systems:
•

Keep the environment between 15°C and 28°C (59°F and 82°F).

•

Keep the environment between 20% and 80% relative humidity (noncondensing).

•

Keep the air around the equipment well circulated to prevent heat from
building up and to provide an exhaust space at the rear of the cabinet.

•

Keep the equipment away from heaters, photocopiers, and direct sunlight.

•

Provide 1.5 m (4.9 ft) front and rear clearance for service access.

•

Decrease static electricity buildup by locating the equipment away from busy
areas such as office corridors, and keep the environment at the recommended
humidity levels. Static electricity can cause the equipment to fail, data to be
lost, and other problems to occur.

•

Keep the area where the equipment is located clean. Do not place food or
liquids on or near the equipment.

•

Keep the area where the equipment is located free from dust (dust particles
can interfere with chassis cooling and can damage the hardware).

2.2.2 Electrical Requirements
A dedicated 30-ampere (200-240 Vac nominal) 3-wire branch circuit for a power
controller is required for each LSB and XMI chassis pair. The circuit must meet
national and local standards, provide a good system ground, be stable, and be
free from electrical noise. If power disturbances cannot be prevented, add powerconditioning equipment. Consult with Multivendor Customer Service personnel
about the electrical requirements for the rackmount DEC 7000 AXP and VAX
7000 systems.
The ac power source should allow for system expansion. Do not connect other
equipment (such as air conditioners or office copiers) to the circuit dedicated to
the rackmount DEC 7000 AXP and VAX 7000 systems.

2–2 Installation

Installation

2.3 Checking the Shipment
The rackmount DEC 7000 AXP and VAX 7000 system hardware shipment
consists of two cartons when not factory installed in a cabinet. One carton
contains the LSB (BA700-AA) chassis and the other carton contains the XMI
(BA601-AC) chassis.
Check the shipment to verify that all items shown in Figure 2–1, and listed on
the packing slip, have been received. Optional items are not shown.
WARNING
The LSB chassis weighs approximately 45 kg (100 lb) and the
XMI chassis weighs approximately 55 kg (121 lb). Use sufficient
personnel, or proper lifting equipment, when lifting or moving
these chassis.
If the equipment is damaged or if any items are missing, notify the delivery agent
and contact the Digital sales representative.
Save all shipping cartons in case the equipment needs to be moved to a new
location, or needs to be returned for repair.

Installation 2–3

Installation

Figure 2–1 Contents of Shipping Cartons

XMI Chassis

Equipment
Mounting
Slides

I/O Cable

Rackmount DEC 7000 AXP
and VAX 7000 Systems
Installation/Owner’s Manual

LSB Chassis

Equipment
Mounting
Slides

DEC Power Bus Cable

Power Cord
Rackmount DEC 7000 AXP
and VAX 7000 Systems
Installation/Owner’s Manual

Console Cable
MK−2339−08

2–4 Installation

Installation

2.4 Installing the LSB Chassis
The following sections discuss the installation of the LSB (BA700-AA) chassis in
a standard RETMA 48.26 cm (19 in.) wide equipment cabinet such as Digital’s
H9702 cabinet. The LSB chassis is installed in the bottom space of the equipment
cabinet. The LSB chassis and the XMI chassis together occupy 88.9 vertical
centimeters (35 vertical inches) of space in the equipment cabinet. Open the rear
door of the cabinet before installing the chassis.
WARNING
Before attempting to install the equipment into a cabinet or rack,
ensure that the cabinet is stable and that all provided stabilizing
features have been activated. The stabilizing features for the rack
or cabinet are configuration dependent.
The following tools are required for installing the LSB and XMI chassis:
•

Medium Phillips screwdriver

•

Small Phillips screwdriver

•

Small flat-blade screwdriver

•

Adjustable wrench

Installation 2–5

Installation

2.4.1 Installing the LSB Chassis Slides
Each chassis is shipped with a pair of RETMA chassis slides (see Figure 2–1 and
Figure 2–2). There is a right and left slide.
Figure 2–2 LSB Chassis Equipment Mounting Slides

Right Slide

Left Slide

Bag of Hardware
and Bar Nuts
MK−2339−09

2–6 Installation

Installation

To install the slides, perform the steps in the following procedure:
1. Check each slide for any damage and for smooth operation.
2. Loosen the two screws that secure the rear slide bracket to the slide so that it
can be adjusted to fit between the front and central rails.
3. Identify the LSB chassis location in the rack and establish a datum line. The
datum line serves as a reference to identify the mounting hole positions for
the slide brackets and U-nuts. To establish a datum line:
a. Determine the area of the rack where the LSB chassis will be installed.
The LSB chassis is normally installed in the bottom space of an
equipment cabinet and requires 48.9 cm (19.25 in.) of height, or 33
contiguous holes (35 holes on the left rail with overlap into the XMI
space).
b. Refer to Figure 2–3 and establish a datum line at the base of the area
between two holes with 1.3 cm (.5 in.) spacing. The first hole above the
datum line is identified as hole 1. This establishes the location of the
bottom edge of the LSB chassis.
4. Install the slides between the front and central vertical mounting rails from
the front of the cabinet as follows:
a. Determine the proper mounting holes for the slide brackets using the
four-hole pattern in the bar nut. This pattern repeats every 4.45 cm (1.75
in.) along the rails. The proper four-hole pattern for the right slide on
the front and central rails is the 2nd, 3rd, 4th, and 5th holes up from the
datum line (see Figure 2–3).
The proper four-hole pattern for the left slide on the front and central
rails is the 32nd, 33rd, 34th, and 35th holes up from the datum line (see
Figure 2–3).
b. Position a bar nut for each slide bracket in the correct position on the
inside of the front and central RETMA rails and start the two middle
screws (the 3rd and 4th holes up from the datum line for the right slide
and the 33rd and 34th holes up from the datum line for the left slide),
then slide the front and back slide support bracket on the inside of the
rails between the bar nut and the rail (see Figure 2–4).

Installation 2–7

Installation

Figure 2–3 LSB Chassis Slide Mounting Pattern

Left Slide
Bracket

35
34
33
32

29
28
27
26

Bar Nuts
U−Nuts

9
8
7
6

8
Omit This Screw
In Front Rail Only
5
4
3
2

Right Slide
Bracket

Datum Line
MK−2339−10

2–8 Installation

Installation

Figure 2–4 Installing the Equipment Mounting Slides (Rear View of Left Slide
with Slide Extended)

Bar Nut
Positioned
Behind Bracket

MK233911

Install the other two screws in the top and bottom holes of each slide
support bracket at each end of the slide.
NOTE

Do not install a screw in the top hole (hole 5) of the right front
slide support bracket. This hole must be left open to allow room
for the clip that secures the front bezel to the chassis.
d. Tighten all eight screws (seven on the right slide) to secure each slide.
NOTE
Pull the slide upward when securing it to the rails. Also, ensure
that the slide is level.
5. Tighten the two screws that secure the rear slide bracket to the slide.
6. Install two U-nuts on the right front rail over the 8th and 27th holes up from
the datum line by sliding them over the edge of the rail and aligning them
with the holes (see Figure 2–3). These are used for securing the LSB chassis,
in the closed position, to the rail.

Installation 2–9

Installation

7. Install a bar nut on the left front rail behind the 26th, 27th, 28th, and 29th
holes up from the datum line by aligning them with the holes and installing
screws in the 26th and 28th holes up from the datum line (see Figure 2–3).
These are used for securing the LSB chassis, in the closed position, to the
rail.
8. Install a bar nut on the left front rail behind the 6th, 7th, 8th, and 9th holes
up from the datum line by aligning them with the holes and installing screws
in the 6th and 9th holes up from the datum line (see Figure 2–3). These are
used for securing the LSB chassis, in the closed position, to the rail.

2–10 Installation

Installation

2.4.2 Installing the LSB Chassis on the Slides
To install the LSB (BA700-AA) chassis on the slides, perform the steps in the
following procedure:
1. Extend the stabilizing legs at the front of the cabinet (if stabilizing legs are
provided).
WARNING
Before attempting to install the equipment into a cabinet or rack,
ensure that the cabinet is stable and that all provided stabilizing
features have been activated. The stabilizing features for the rack
or cabinet are configuration dependent.
2. Extend both of the equipment slides from the cabinet. The slide locking levers
lock automatically when the slides are fully extended.
WARNING
The LSB (BA700-AA) chassis weighs approximately 45 kg (100 lb).
Use sufficient personnel, or proper lifting equipment, when lifting
or moving this chassis.
3. Remove the front bezel from the LSB chassis by grasping both sides of the
bezel and pulling straight out.
4. Lift the LSB chassis until the chassis mounting plates are just above the
slides, and then move the chassis back and onto the equipment slides.
5. Carefully position the chassis until the four mounting holes in the side of
the chassis line up with the four mounting holes in the side of the slide (see
Figure 2–5).
6. Secure the LSB chassis to the slides by installing four screws for each slide,
supplied with the hardware kit, through the slides and into the chassis
mounting holes (see Figure 2–5).

Installation 2–11

Installation

Figure 2–5 Installing the LSB Chassis on the Slides

Chassis
Mounting
Holes
MK−2339−12

7. Release the slide locking levers on both slides and carefully slide the LSB
chassis into the cabinet. Ensure that the chassis is level, can clear all other
equipment in the cabinet, and that the slides operate smoothly.
8. Secure the chassis to the equipment rails by tightening the four screws into
the bar nuts and U-nuts that were placed on the front RETMA rails during
installation of the slides.
9. Replace the front bezel on the LSB chassis by grasping both sides of the bezel
and pushing it onto the front of the chassis.

2–12 Installation

Installation

2.5 Installing the XMI Chassis
The following sections discuss the installation of the XMI (BA601-AC) chassis in
a standard RETMA 48.26 cm (19 in.) wide equipment cabinet such as Digital’s
H9702 cabinet. The first XMI chassis is installed in the space above the LSB
chassis. Any other XMI chassis that are to be installed should be installed in
the space above the previously installed XMI chassis. Open the rear door of the
cabinet before installing the chassis.
WARNING
Before attempting to install the equipment into a cabinet or rack,
ensure that the cabinet is stable and that all provided stabilizing
features have been activated. The stabilizing features for the rack
or cabinet are configuration dependent.

Installation 2–13

Installation

2.5.1 Installing the XMI Chassis Slides
Each chassis is shipped with a pair of RETMA chassis slides (see Figure 2–1 and
Figure 2–6). There is a right and left slide.
Figure 2–6 XMI Chassis Equipment Mounting Slides

MK−2339−13

2–14 Installation

Installation

To install the slides, perform the steps in the following procedure:
1. Check each slide for any damage and for smooth operation.
2. Loosen the two screws that secure the rear slide bracket to the slide so that it
can be adjusted to fit between the front and central rails.
3. Identify the XMI chassis location in the rack and establish a datum line. The
datum line serves as a reference to identify the mounting hole positions for
the slide brackets and U-nuts. To establish a datum line:
a. Determine the area of the rack where the XMI chassis will be installed.
The first XMI chassis is installed in the space of an equipment cabinet
located just above the LSB chassis and requires 40 cm (15.75 in.) of
height, or 27 contiguous holes. Any additional XMI chassis that are to be
added are installed in the space above a previously installed XMI chassis.
b. Refer to Figure 2–7 and establish a datum line at the base of the area
between two holes with 1.3 cm (.5 in.) spacing. The first hole above the
datum line is identified as hole 1. This establishes the location of the
bottom edge of the XMI chassis.
4. Install the slides between the front and central vertical mounting rails from
the front of the cabinet as follows:
a. Determine the proper mounting holes for the slide brackets using the
four-hole pattern in the bar nut. This pattern repeats every 4.45 cm (1.75
in.) along the rails. The proper four-hole pattern for the slide on the
front and central rails is the 11th, 12th, 13th, and 14th holes up from the
datum line (see Figure 2–7).
b. Position each bar nut in the correct position on the inside of the front and
central RETMA rails and start the two middle screws (the 12th and 13th
holes up from the datum line), then slide the front and back slide support
bracket between the rail and the screw heads (see Figure 2–8).
c.

Install the other two screws in the top and bottom holes of each slide
support bracket at each end of the slide.

d. Tighten all eight screws to secure each slide.
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.

Installation 2–15

Installation

Figure 2–7 XMI Chassis Slide Mounting Pattern

26
U−Nuts

Left Slide
Bracket

14
13
12
11

Right Slide
Bracket

U−Nuts
5

Datum Line

MK−2339−14

5. Tighten the two screws that secure the rear slide bracket to the slide.
6. Repeat steps 1 through 5 for the other slide.
7. Install two U-nuts on each front rail over the 5th and 26th holes up from the
datum line by sliding them over the edge of the rail and aligning them with
the holes (see Figure 2–7). These are used for securing the XMI chassis, in
the closed position, to the rails.

2–16 Installation

Installation

Figure 2–8 Installing the Equipment Mounting Slides (Rear View of Left Slide
with Slide Extended)

Bar Nut
Positioned
Behind Rail

MK233915

Installation 2–17

Installation

2.5.2 Installing the XMI Chassis on the Slides
To install the XMI (BA601-AC) chassis on the slides, perform the steps in the
following procedure:
1. Extend the stabilizing legs at the front of the cabinet (if stabilizing legs are
provided).
WARNING
Before attempting to install the equipment into a cabinet or rack,
ensure that the cabinet is stable and that all provided stabilizing
features have been activated. The stabilizing features for the rack
or cabinet are configuration dependent.
2. Extend both of the equipment slides from the cabinet. The slide locking levers
lock automatically when the slides are fully extended.
WARNING
The XMI (BA601-AC) chassis weighs approximately 55 kg (121 lb).
Use sufficient personnel, or proper lifting equipment, when lifting
or moving this chassis.
3. Remove the front bezel from the XMI chassis by grasping both sides of the
bezel and pulling straight out.
4. Lift the XMI chassis onto the equipment slides and carefully position the
chassis mounting plate over the three mounting holes in the slide (see
Figure 2–9).
5. Secure the XMI chassis to both slides by installing three 8-32 screws through
the chassis mounting plates and into the equipment slides (see Figure 2–9).
6. Release the slide locking levers on both slides and carefully slide the XMI
chassis into the cabinet. Ensure that the chassis is level, can clear all other
equipment in the cabinet, and that the slides operate smoothly.
7. Secure the chassis to the equipment rails by tightening the four screws into
the U-nuts that were placed on the front RETMA rails during installation of
the slides.

2–18 Installation

Installation

8. Replace the front bezel on the XMI chassis by grasping both sides of the bezel
and pushing it onto the front of the chassis.
Figure 2–9 Installing the XMI Chassis on the Slides

Mounting
Screws
MK−2339−16

Installation 2–19

Installation

2.6 Cabling
The following sections contain the procedures for connecting the I/O cable(s), the
DEC power bus cable, and the console cable. These cable connections must be
performed in the sequence presented in the following sections.

2.6.1 Connecting the I/O Cable (PN 17-03085-02)
Use the following procedure to connect the I/O cable from the IOP module in the
LSB chassis to the I/O bulkhead connector on the XMI chassis.
WARNING
Special instructions apply to extend the LSB chassis to prevent
personal injury (see Section 5.2.2).
1. Extend the LSB chassis for service (see Section 5.2.2).
2. Remove the cover plate and connect the LSB end of the I/O cable to the
rear most available connector of the four connectors on the IOP module, and
alternately tighten the two slotted captive screws to secure it in place (see
Figure 2–10).
3. Replace the cover plate over any unused IOP connectors.
4. Route the I/O cable toward the rear of the LSB chassis.
5. Open the rear door on the equipment cabinet.
6. Connect the other end of the I/O cable to the I/O connector on the rear
bulkhead of the XMI chassis, and tighten the two slotted captive screws to
secure it in place (see Figure 2–11).

2–20 Installation

Installation

Figure 2–10 Connecting the I/O Cable to the IOP Module

Front

IOP Module

LSB
Top Cover

To XMI Chassis
MK−2339−17

Installation 2–21

Installation

Figure 2–11 Connecting the I/O Cable to the XMI Bulkhead Connector

MK−2339−18

2–22 Installation

Installation

2.6.2 Connecting the DEC Power Bus Cable (PN 70-31534-01)
Use the following procedure to connect the DEC power bus cable from the LSB
chassis to a power sequencing power controller similar to Digital’s model 877-E
that is included in an H9702-FB cabinet.
1. Connect one end of the DEC power bus cable to the power bus connector
located behind the top left edge of the LSB front panel (see Figure 2–12).
Figure 2–12 DEC Power Bus and Console Cable Connectors

Console
Connector

Front

DEC Power Bus
Connector
Console Cable
Ground Stud

MK−2339−19

2. Route the DEC power bus cable toward the rear of the LSB chassis.
3. Open the rear door on the equipment cabinet.
4. Connect the other end of the DEC power bus cable to the power controller
that is mounted on the rear cabinet rails behind the LSB chassis.

Installation 2–23

Installation

2.6.3 Connecting the Console Cable (PN 17-01364-02)
Use the following procedure to connect the console cable from the LSB chassis to
the console terminal.
1. Connect one end of the console cable to the console connector located behind
the top left edge of the LSB front panel, and connect the ground wire to the
ground stud (see Figure 2–12).
2. Route the console cable toward the rear of the LSB chassis.
3. Open the rear door on the equipment cabinet.
4. Route the console cable through the cable entrance/exit area of the equipment
cabinet.
5. Connect the other end of the console cable to the console terminal.
6. Release the slide locking levers on both slides and carefully slide the LSB
chassis into the cabinet.
7. Secure the LSB chassis to the equipment rails by tightening the four screws
and replacing the front bezels on the LSB and XMI chassis (see Section 5.2.2).

2–24 Installation

Installation

2.7 Connecting the Power Cords
The LSB chassis has a removable power cord and the XMI chassis has its own
permanently attached power cord. The LSB and the first XMI chassis in a cabinet
should connect to the same power controller. A second and third XMI chassis
should connect to a second power controller that is sequenced by the first power
controller.
The power controller is connected to an external source of 200-240 Vac (nominal),
single phase power.

2.7.1 LSB Chassis Power Cord (PN 17-00083-37)
Use the following procedure to connect the LSB chassis power cord:
1. Connect one end of the LSB power cord to the ac input jack on the rear of the
LSB chassis.
2. Connect the other end to an unswitched receptacle on the power controller.

2.7.2 XMI Chassis Power Cord
Use the following procedure to connect the permanently attached XMI chassis
power cord:
Connect the unattached end of the XMI power cord to one of the switched
receptacles on the power controller, using any adapters that are necessary.

Installation 2–25

3
Operation
Operation of the rackmount DEC 7000 AXP and VAX 7000 systems begins with
connecting the LSB chassis power cord to an unswitched receptacle on the power
controller, and connecting the DEC power bus cable from the LSB chassis to
the power controller. The XMI chassis power cord is connected to a switched
receptacle on the power controller. Place the circuit breakers on the rear of both
chassis to the ON position.
The system can now be turned off and on with the On/Off push-button switch on
the LSB chassis control panel.

WARNING
The only way to remove all power from a chassis is to place the
circuit breaker in the OFF position and disconnect the power
cord from the power controller.
Refer to Section 1.2.2 for the LSB chassis controls and indicators.
Refer to Section 1.3.2 for the XMI chassis controls and indicators.
For information on booting the system refer to the DEC 7000 AXP System/VAX
7000 Operations Manual (EK-7000B-OP).
Refer to the DEC 7000 AXP System/VAX 7000 Console Reference Manual
(EK-70C0B-TM) for information on the console user interface and the console
commands.

Operation 3–1

4
Troubleshooting
This chapter discusses basic troubleshooting and diagnostic testing information
and aids in troubleshooting the LSB and XMI chassis.

Troubleshooting 4–1

Troubleshooting

Table 4–1 lists indications of possible hardware problems that may occur in the
LSB chassis and the corrective action to take for each problem.
Table 4–1 LSB Chassis Troubleshooting
Indication

Possible Cause

Corrective Action

No LEDs light when
On/Off push button is
pushed in.

Power cord is not
plugged in.

Plug in the power cord.

Circuit breaker is not
on.

Place the circuit breaker in the ON
position.

Cable between the
power supply and the
control panel module is
loose or not connected.

Check the cable between the
power supply and the control
panel module.

48 Vdc power supply is
out of tolerance or has
failed.

Replace the 48 Vdc power supply.

Control panel module
has failed.

Replace the control panel module.

Console terminal is not
powered up and online.

Power up the terminal and set
it online (at proper terminal
settings).

Console cable is not
properly connected
between the LSB chassis
and the console.

Check the console cable connections on the LSB chassis and the
console.

Improper baud rate.

Set to the correct baud rate.

Blower has failed.

Check the blower to see if it is
rotating. If not, replace the blower.

Blower status cable to
the control panel module
is loose or disconnected.

Check the blower status cable
connection to the control panel
module.

A memory module,
CPU module, or one of
the I/O modules in the
XMI chassis has failed
self-test.

Check the self-test display on
the console and replace the failed
module.

Fault LED goes out after
powerup, but no self-test
display

Fault LED fails to blink
during the power-up
sequence

Fault LED stays lit after
power-up self-test.

4–2 Troubleshooting

Troubleshooting

Table 4–2 lists indications of possible hardware problems that may occur in the
XMI chassis and the corrective action to take for each problem.
Table 4–2 XMI Chassis Troubleshooting
Indication

Possible Cause

Corrective Action

No LEDs light

Power cord is not
plugged in.

Plug in the power cord.

Circuit breaker is not
on.

Place the circuit breaker in the ON
position.

Upper switch is not on.

Place the upper control panel
switch in the ENABLE or SECURE
position.

On/Off push button is
not pushed in (On) on
the LSB chassis.

Press the On/Off push button in on
the LSB chassis.

Power cord on the LSB
chassis is not plugged
in.

Plug in the power cord.

LSB chassis circuit
breaker is not on.

Place the LSB chassis circuit
breaker in the ON position.

DEC power bus cable is
not properly connected
between the LSB chassis
and the power controller.

Check the DEC power bus cable
connections on the LSB chassis and
the power controller.

Fan cable is loose or not
connected.

Check the fan cable or reconnect
the cable.

No 24 Vdc.

Check the cables. Replace the
24 Vdc miniconverter (E2) on the
sequencer and auxiliary dc voltage
regulator tray, or replace the tray
itself.

Airflow problem.

Check the position of the detector,
or the fan operation itself.

Cable connection
problem between XMI
backplane, XTC card,
and console panel.

Ensure that the connectors are on
securely.

No fans, unit shuts
down after one minute

Fans OK, but no LEDs
light

(continued on next page)

Troubleshooting 4–3

Troubleshooting

Table 4–2 (Cont.) XMI Chassis Troubleshooting
Indication

Possible Cause

Corrective Action

Fault LED goes out, but
no self-test display

Console terminal is not
powered up and online.

Power up the terminal and set
it online (at proper terminal
settings).

Front console switch,
S1, is in the SECURE
position.

Place S1 in the ENABLE position.

Improper baud rate.

Set to the correct baud rate.

Not all necessary
voltages are applied.

Check the backplane for all the
necessary voltage supplies.

Loose cabling on the
backplane.

Check and secure all the cables on
the backplane.

Firmware needs
updating.

Boot and run the LFU utility.

Bad module.

Replace the module.

Loose cabling on the
backplane.

Check and secure all the cables
on the backplane and the I/O
bulkheads.

Poor contact on the
module connectors.

Clean the module connectors.

Front panel LEDs flash
on, and then remain
off when the system is
turned on

+5 Vdc is not coming up.

Replace the 5 Vdc master and/or 5
Vdc booster power regulator trays.

No -5.2 Vdc

3.3 Vdc/-5.2 Vdc tray is
bad.

Replace the 3.3 Vdc/-5.2 Vdc
modules (E2, E4, E10) on the
regulator tray, or replace the tray
itself.

Module does not appear
on self-test results

Intermittent module
response

For information on the system procedure required when changing or adding
CPU modules, recovering from a corrupted EEPROM or FEPROM, and updating
firmware, refer to the DEC 7000 AXP System/VAX 7000 System Service Manual
(EK-7002B-SV).
For information on basic system troubleshooting; the power-up and system
reset self-test; how to get information on the hardware configuration; and how
to test the system, subsystem, or module/device, refer to the DEC 7000 AXP
System/VAX 7000 Basic Troubleshooting (EK-7000B-TS).

4–4 Troubleshooting

Troubleshooting

For more advanced self-test and diagnostic troubleshooting procedures, refer to
either the DEC 7000 AXP System Advanced Troubleshooting (EK-7701A-TS) or
VAX 7000 Advanced Troubleshooting (EK-7001A-TS) depending on the system.

Troubleshooting 4–5

5
Removal and Replacement
5.1 Introduction
This chapter contains the procedures for removing and replacing the components
that are unique in the rackmount DEC 7000 AXP and VAX 7000 systems LSB
(BA700-AA) and XMI (BA601-AC) chassis.
The following tools are required for servicing the LSB and XMI chassis:
•

Medium Phillips screwdriver

•

Small Phillips screwdriver

•

Small flat blade screwdriver

•

Adjustable wrench

•

DVM meter and probes
WARNING
Before servicing either chassis, ensure that the circuit breakers
are in the OFF position at both the chassis and the power
controller.

Removal and Replacement 5–1

Removal and Replacement

5.2 LSB Chassis Components
The following sections contain the removal and replacement procedures for the
components that are unique to the LSB chassis in the rackmount DEC 7000 AXP
and VAX 7000 systems.

5.2.1 Front Bezel
Perform the following procedure to remove the front bezel from the LSB chassis:
1. Grasp the front bezel on each side.
2. Pull straight out until the bezel unsnaps from the catches (see Figure 5–1).
To replace the front bezel, push it onto the front of the chassis until it snaps into
place.

5–2 Removal and Replacement

Removal and Replacement

Figure 5–1 Removing the Front Bezel from the LSB Chassis

MK−2339−20

Removal and Replacement 5–3

Removal and Replacement

5.2.2 Extending the LSB Chassis for Service

WARNING
Before extending the LSB chassis for service, ensure that the
cabinet is stable and that all provided stabilizing features have
been activated. The stabilizing features for the rack or cabinet
are configuration dependent.
Perform the following procedure to extend the LSB chassis for service:
1. Extend the stabilizing legs at the front of the cabinet (if stabilizing legs are
provided).
2. Remove the LSB front bezel (see Section 5.2.1).
3. Remove the XMI front bezel (see Section 5.3.1).
WARNING
Failure to remove the XMI front bezel before extending the LSB
chassis will cause the XMI front bezel to fall and may result in
personal injury.
4. Remove the four retaining screws that secure the chassis to the front rails
(see Figure 5–2).
CAUTION
Check and ensure that all cables are free to follow the chassis
before extending the chassis.
5. Carefully pull the LSB chassis forward until the slides lock in the extended
position.
To secure the chassis in the cabinet, press in on the left and right slide locks and
reverse steps 1 through 5.

5–4 Removal and Replacement

Removal and Replacement

Figure 5–2 Extending the LSB Chassis

Chassis Retaining Screws

MK−2339−21

Removal and Replacement 5–5

Removal and Replacement

5.2.3 Top Cover
Perform the following procedure to remove the top cover:
WARNING
Special instructions apply to extend the LSB chassis to prevent
personal injury (see Section 5.2.2).
1. Extend the LSB chassis for service (see Section 5.2.2).
2. Loosen the two quarter-turn fasteners along the top front edge of the chassis
that secure the top cover (see Figure 5–3).
3. Lift up on the front edge of the top cover and pull forward until the tabs on
the back edge slide out of the retaining slots (see Figure 5–3).
To replace the top cover, slide the tabs on the back edge of the cover into the
retaining slots and tighten the two quarter-turn fasteners along the top front
edge of the chassis that secure the top cover.

5–6 Removal and Replacement

Removal and Replacement

Figure 5–3 Removing the Top Cover

Top Cover
Quarter−Turn
Fasteners

MK−2339−22

Removal and Replacement 5–7

Removal and Replacement

5.2.4 CPU and Memory Modules
Perform the following procedure to remove CPU or memory modules:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
LSB chassis and on the power controller.

WARNING
Special instructions apply to extend the LSB chassis to prevent
personal injury (see Section 5.2.2).
1. Extend the LSB chassis for service (see Section 5.2.2).
2. Remove the top cover (see Section 5.2.3).
3. Put on an antistatic wriststrap.
CAUTION
An antistatic wriststrap must be worn when handling any module
to prevent damage to the module.
4. On the module being removed, pull the two black restraining clips up and to
the left (see Figure 5–4 (1) ). The clips snap when they open.
5. Pull both levers up at the same time until they are perpendicular to the top of
the module (see Figure 5–4 (2) ). This frees the module from the backplane.
6. Holding the levers, pull up on the module until it is out far enough to be able
to hold it underneath as it is removed.
7. When the module is free of the card cage, place it on an ESD pad in a safe
area, or pack it in the box that the new module was shipped in.
To replace a CPU or memory module, align the tracks of the module with the
tracks in the card cage slot and reverse steps 1 through 7.

5–8 Removal and Replacement

Removal and Replacement

Figure 5–4 Removing the CPU and Memory Modules

1
2

MK−2339−23

Removal and Replacement 5–9

Removal and Replacement

5.2.5 I/O Port Controller (IOP) Module (E2044-AA)
Perform the following procedure to remove the I/O port controller module:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
LSB chassis and on the power controller.

WARNING
Special instructions apply to extend the LSB chassis to prevent
personal injury (see Section 5.2.2).
1. Extend the LSB chassis for service (see Section 5.2.2).
2. Put on an antistatic wriststrap.
CAUTION
An antistatic wriststrap must be worn when handling any module
to prevent damage to the module.
3. Loosen the slotted captive screws that secure the I/O cable(s) to the
connector(s) on the IOP module (see Figure 5–5) and disconnect the cable(s).
4. Alternately loosen the two screws that secure the IOP module in the chassis
until the module is free of the connector (see Figure 5–5). Do not loosen one
screw completely before loosening the other. This keeps the module from
binding in the card guides.
5. Slide the module from the card cage.
To replace the IOP module, align the tracks of the module with the tracks in the
card cage slot and reverse steps 1 through 5.

5–10 Removal and Replacement

Removal and Replacement

Figure 5–5 Removing the IOP Module

Front
IOP Screw

LSB
Top Cover

I/O Cable
Screws

IOP Screw

MK−2339−24

Removal and Replacement 5–11

Removal and Replacement

5.2.6 Left Side Cover
Perform the following procedure to remove the left side cover:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
LSB chassis and on the power controller.

WARNING
Special instructions apply to extend the LSB chassis to prevent
personal injury (see Section 5.2.2).
1. Extend the LSB chassis for service (see Section 5.2.2).
2. Remove the six screws that secure the left side cover to the chassis (see
Figure 5–6).
3. Pull the left side cover straight out until it clears the top and bottom lips of
the chassis (see Figure 5–6).
To replace the left side cover, place the cover back into position and install the six
screws that secure it in place.

5–12 Removal and Replacement

Removal and Replacement

Figure 5–6 Removing the Left Side Cover
Card Cage

Control Panel

Side Cover Screws (6)
MK−2339−25

Removal and Replacement 5–13

Removal and Replacement

5.2.7 48 Vdc Power Supply (PN 30-39348-02)
Perform the following procedure to remove the 48 Vdc power supply:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
LSB chassis and on the power controller.

WARNING
Special instructions apply to extend the LSB chassis to prevent
personal injury (see Section 5.2.2).
1. Extend the LSB chassis for service (see Section 5.2.2).
2. Remove the left side cover (see Section 5.2.6).
3. Disconnect the connectors from J1 and J4 on the power supply (see
Figure 5–7).
4. Use an adjustable wrench to remove the nuts from the POS and RTN
terminals on the power supply (see Figure 5–7).
5. Remove the wires from the POS and RTN terminals and ensure that they are
properly labeled for reconnection (see Figure 5–7).
6. Remove the wires from the cable clamps (see Figure 5–7).
7. Remove the nine screws that secure the power supply to the chassis and lift
the power supply out of the chassis (see Figure 5–7).
To replace the 48 Vdc power supply, reverse steps 1 through 7.

5–14 Removal and Replacement

Removal and Replacement

Figure 5–7 Removing the 48 Vdc Power Supply

J1
J4

Cable Clamps

Grey Wire (RTN)

Yellow Wire (POS)
MK−2339−26

Removal and Replacement 5–15

Removal and Replacement

5.2.8 Control Panel (PN 54-21719-01)
Perform the following procedure to remove the control panel:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
LSB chassis and on the power controller.

WARNING
Special instructions apply to extend the LSB chassis to prevent
personal injury (see Section 5.2.2).
1. Extend the LSB chassis for service (see Section 5.2.2).
2. Disconnect the DEC power bus cable and the console cable from the
connectors located behind the top left edge of the front panel (see Figure 5–8).
3. Use a wrench to remove the six nuts that secure the front panel to the LSB
chassis (see Figure 5–9).

5–16 Removal and Replacement

Removal and Replacement

Figure 5–8 DEC Power Bus and Console Cable Connectors

Console
Connector

Front

DEC Power Bus
Connector
Console Cable
Ground Stud

MK−2339−19

Removal and Replacement 5–17

Removal and Replacement

Figure 5–9 Removing the Front Panel

Front
Panel
Nuts (3)
Front
Panel
Nuts (3)

MK−2339−27

4. Pull the front panel straight out until it clears the posts, then swing the right
edge to the left to allow access to the connectors (see Figure 5–10).
CAUTION
The front panel must be supported while completing the
remaining steps.
5. Disconnect the two-conductor blower cable from the back of the control panel
(see Figure 5–10).

5–18 Removal and Replacement

Removal and Replacement

6. Remove the eight screws that secure the control panel to the front panel and
lay the front panel aside (see Figure 5–10).
7. Disconnect the 50-pin and 10-pin connectors from the control panel (see
Figure 5–10).
To replace the control panel, reverse steps 1 through 7.
Figure 5–10 Removing the Control Panel
50−Pin Connector
10−Pin Connector
Blower Cable

Control Panel
Screws (8)

MK−2339−28

Removal and Replacement 5–19

Removal and Replacement

5.2.9 Blower Assembly (PN 12-41009-01)
The blower assembly is accessed from the rear of the equipment cabinet without
extending the LSB chassis for service.
Perform the following procedure to remove the blower assembly:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
LSB chassis and on the power controller.
1. Open the rear door of the equipment cabinet.
NOTE
Removal of the blower assembly may require removal of the
power controller for easier access. If this is required, disconnect
the power controller from the external source of 200-240 Vac
power before removing the power controller.
2. Remove the 13 screws that secure the blower assembly to the bottom and
back of the LSB chassis (see Figure 5–11).
3. Slide the blower assembly toward the back of the cabinet and reach between
the blower assembly and the chassis to disconnect the blower assembly power
cable.
To replace the blower assembly, reverse steps 1 through 3.
NOTE
If the power controller was removed to gain access to the blower
assembly, reinstall it after replacing the blower assembly.

5–20 Removal and Replacement

Removal and Replacement

Figure 5–11 Removing the Blower Assembly

Blower
Assembly
Screws (13)
Note: Two Screws
(Both Sides) on the
Bottom Flange Are
Not Shown

MK233929

Removal and Replacement 5–21

Removal and Replacement

5.2.10 AC Input Box (PN 30-39579-01)
The ac input box is accessed from the rear of the equipment cabinet without
extending the LSB chassis for service.
Perform the following procedure to remove the ac input box:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
LSB chassis and on the power controller.
1. Open the rear door of the equipment cabinet.
2. Disconnect the power cord from the ac input jack on the ac input box (see
Figure 5–12).
3. Loosen the two captive screws that secure the ac input box to the LSB chassis
(see Figure 5–12).
4. Slide the ac input box toward the back of the cabinet and reach between the
ac input box and the chassis to disconnect the ac input box power cable.
To replace the ac input box, reverse steps 1 through 4.

5–22 Removal and Replacement

Removal and Replacement

Figure 5–12 Removing the AC Input Box

Captive
Screw

Circuit
Breaker

AC Input
Jack

Captive
Screw
MK233930

Removal and Replacement 5–23

Removal and Replacement

5.3 XMI Chassis Components
The following sections contain the removal and replacement procedures for the
components that are unique to the XMI chassis in the rackmount DEC 7000 AXP
and VAX 7000 systems.

5.3.1 Front Bezel
Perform the following procedure to remove the front bezel from the XMI chassis:
1. Grasp the front bezel on each side.
2. Pull straight out until the bezel unsnaps from the catches (see Figure 5–13).
To replace the front bezel, push it onto the front of the chassis until it snaps into
place.

5–24 Removal and Replacement

Removal and Replacement

Figure 5–13 Removing the Front Bezel from the XMI Chassis

MK−2339−31

Removal and Replacement 5–25

Removal and Replacement

5.3.2 Extending the XMI Chassis for Service

WARNING
Before extending the XMI chassis for service, ensure that the
cabinet is stable and that all provided stabilizing features have
been activated. The stabilizing features for the rack or cabinet
are configuration dependent.
Perform the following procedure to extend the XMI chassis for service:
1. Extend the stabilizing legs at the front of the cabinet (if stabilizing legs are
provided).
2. Remove the front bezel (see Section 5.3.1).
3. Remove the four retaining screws that secure the chassis to the front rails
(see Figure 5–14).
CAUTION
Check and ensure that all cables are free to follow the chassis
before extending the chassis.
4. Carefully pull the XMI chassis forward until the slides lock in the extended
position.
To secure the chassis in the cabinet, press in on the left and right slide locks and
reverse steps 1 through 4.

5–26 Removal and Replacement

Removal and Replacement

Figure 5–14 Extending the XMI Chassis

Chassis Retaining Screws

MK−2339−32

Removal and Replacement 5–27

Removal and Replacement

5.3.3 Top Cover
Perform the following procedure to remove the top cover:
1. Extend the XMI chassis for service (see Section 5.3.2).
2. Remove the three screws along the top front edge of the chassis that secure
the top cover (see Figure 5–15).
3. Lift up on the front edge of the top cover and pull forward until the back edge
slides out from under the retaining lip (see Figure 5–15).
To replace the top cover, slide the back edge of the cover under the retaining lip
and install the three screws along the top front edge of the chassis that secure
the top cover.
Figure 5–15 Removing the Top Cover

Top Cover

MK−2339−33

5–28 Removal and Replacement

Removal and Replacement

5.3.4 Bottom Cover
Perform the following procedure to remove the bottom cover:
NOTE
Components that require access from the bottom of the XMI
chassis may be more conveniently accessed by removing the XMI
chassis from the slides and using a workbench area for service.
1. Extend the XMI chassis for service (see Section 5.3.2).
2. Remove the four screws along the bottom front edge of the chassis that secure
the bottom cover (see Figure 5–16).
WARNING
Hold the cover in place while removing the last screw to prevent
the cover from falling.
3. Let the front edge of the bottom cover down and pull forward until the back
edge slides out from under the retaining lip (see Figure 5–16).
To replace the bottom cover, slide the back edge of the cover under the retaining
lip and install the four screws along the bottom front edge of the chassis that
secure the bottom cover.

Removal and Replacement 5–29

Removal and Replacement

Figure 5–16 Removing the Bottom Cover

MK−2339−34

5–30 Removal and Replacement

Removal and Replacement

5.3.5 Control Panel Bezel (PN 70-22117-01)
Perform the following procedure to remove the control panel bezel:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
XMI chassis and on the power controller.
1. Extend the XMI chassis for service (see Section 5.3.2).
2. Remove the two 4-40 screws securing the control panel bezel to the front of
the chassis using a small Phillips screwdriver (see Figure 5–17).
3. Carefully lift the control panel bezel off.
NOTE
Be careful not to lose the small free-floating push-button restart
switch inside the control panel.
To replace the control panel bezel, reverse steps 1 through 3.
NOTE
When replacing the control panel bezel, ensure that the key slots
inside the control panel bezel align with the switches on the
control panel printed circuit board.

Removal and Replacement 5–31

Removal and Replacement

Figure 5–17 Removing the Control Panel Bezel
Control Panel Module
P/N 54−16574

Reset Button

Control Panel Bezel
P/N 70−22117−01

4/40 Screw

MK−2339−35

5–32 Removal and Replacement

Removal and Replacement

5.3.6 Control Panel Module (PN 54-16574-02)
Perform the following procedure to remove the control panel module:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
XMI chassis and on the power controller.
1. Extend the XMI chassis for service (see Section 5.3.2).
2. Remove the control panel bezel (see Section 5.3.5).
3. Remove the top cover (see Section 5.3.3).
4. Remove the four screws that secure the RRD42/TF85 option cage to the right
side of the chassis and lift the cage out.
NOTE
If a TF85 tape drive or an RRD42 CD-ROM reader is installed
in the option cage, remove the option cage by following the
procedure in Section 5.3.15 or Section 5.3.17.

CAUTION
You must wear an antistatic wriststrap attached to the chassis
when handling any modules.
5. Put on the antistatic wriststrap. This strap is contained in the plastic pouch
located on top of the power supply modules.
6. Disconnect the control panel cable connector from the XTC timing module
(see Figure 5–18).
NOTE
When replacing the control panel module, ensure that the cable
connector is connected with the red stripe on the cable oriented
as shown in Figure 5–18.

Removal and Replacement 5–33

Removal and Replacement

7. Squeeze the ends of the four standoffs holding the module to the chassis, and
pull the module past the locking tab on each standoff (see Figure 5–18).
8. Remove the module.
To replace the control panel module, reverse steps 1 through 8.
Figure 5–18 Removing the Control Panel Module

Red Stripe

XTC Timing
Module

MK−2339−36

5–34 Removal and Replacement

Removal and Replacement

5.3.7 XTC Timing Module (PN 70-31509-01)
Perform the following procedure to remove the XTC timing module:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
XMI chassis and on the power controller.
1. Extend the XMI chassis for service (see Section 5.3.2).
2. Remove the top cover (see Section 5.3.3).
3. Remove the four screws that secure the RRD42/TF85 option cage to the right
side of the chassis and lift the cage out.
NOTE
If a TF85 tape drive or an RRD42 CD-ROM reader is installed
in the option cage, remove the option cage by following the
procedure in Section 5.3.15 or Section 5.3.17.

CAUTION
You must wear an antistatic wriststrap attached to the chassis
when handling any modules.
4. Put on the antistatic wriststrap. This strap is contained in the plastic pouch
located on top of the power supply modules.
5. Reach down through the area where the option cage was installed and
disconnect the three ribbon-style cable connectors (J2, J3, and J4) and the
battery connector (J1) on the XTC timing module (see Figure 5–19). Note the
orientation of the module for later replacement.
6. Remove the four 6-32 screws securing the XTC timing module to the chassis
using a Phillips screwdriver (see Figure 5–19).
7. Remove the XTC timing module by lifting it out through the top of the
chassis.

Removal and Replacement 5–35

Removal and Replacement

To replace the XTC timing module, reverse steps 1 through 7.
Figure 5–19 Battery and XTC Connections

MK−2339−37

5–36 Removal and Replacement

Removal and Replacement

5.3.8 AC Front End Trays (PN 70-27334-01)
The XMI chassis power supply incorporates two identical ac front end tray
assemblies that provide power for the dc regulator inputs (see Figure 5–20). Each
of these two trays converts the 200-240 Vac input from the electrical service into
a 300 Vdc output. Each ac front end tray provides 300 Vdc to a pair of dc-to-dc
converter trays through its own power cable assemblies. One ac front end tray
feeds (300 Vdc) to the 5 Vdc master and the 5 Vdc booster regulator trays. The
other ac front end tray feeds (300 Vdc) to the sequencer and auxiliary dc voltage
and the 3.3 Vdc/-5.2 Vdc regulator trays. The ac front end trays are located in
positions A and B in Figure 5–21 through Figure 5–23.
Figure 5–20 AC Front End Tray

Top

Rear
Bottom
AC Input
Connector

MK233938

Removal and Replacement 5–37

Removal and Replacement

Perform the following procedure to remove the ac front end trays:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
XMI chassis and on the power controller.
1. Extend the XMI chassis for service (see Section 5.3.2).
2. Remove the top cover (see Section 5.3.3).
WARNING
High voltage is present on the ac front end tray connectors for
about 30 seconds after the XMI circuit breaker is turned off.
3. Disconnect the power supply connectors from the appropriate ac front end
tray to be replaced (see Figure 5–21 and Figure 5–22).

5–38 Removal and Replacement

Removal and Replacement

Figure 5–21 Power Supply Top Connectors
Power Supply
Connectors

MK−2339−39

Removal and Replacement 5–39

Removal and Replacement

Figure 5–22 Power Supply Top Interconnect Diagram

2P5

3.3 Vdc/−5.2 Vdc Tray (B2)

2P4

Sequencer/Auxiliary Tray (B1)

1P2

5 Vdc Booster Tray (A2)

1P3

5 Vdc Master Tray (A1)

2P1

2P3

AC Front End Tray (B)

1P1

2P2

AC Front End Tray (A)

2P6

MK−2339−40

4. Remove the bottom cover (see Section 5.3.4).
5. Remove the input connector on the rear side of the tray from the bottom
(between the tray and the fans).
6. Remove the two screws securing the ac front end tray in the power supply
assembly (see Figure 5–23).
7. Remove the ac front end tray from the power supply assembly.
To replace the ac front end trays, reverse steps 1 through 7.

5–40 Removal and Replacement

Removal and Replacement

Figure 5–23 Removing the AC Front End Trays
Front

AC Front End Trays

MK−2339−41

Removal and Replacement 5–41

Removal and Replacement

5.3.9 +5 Vdc Regulator Trays (PN 70-29046-01 and 70-29046-02)
The XMI chassis contains two +5 Vdc regulator trays, a master unit (PN 7029046-01) and a booster unit (PN 70-29046-02). These two trays provide the
+5 Vdc power for the system. Their outputs are strapped together so that they
supply a single distribution rail in the system backplane. See Figure 5–25 for
location.
The +5 Vdc master and +5 Vdc booster regulator trays (see Figure 5–24) include
the following as field replaceable units (FRUs):
•

One 5 Vdc master converter module (PN 20-34928-01) on the -01 board (E10)

•

Five 5 Vdc booster converter modules (PN 20-34929-01) (two on the -01 board
and three on the -02 board)

5–42 Removal and Replacement

Removal and Replacement

Figure 5–24 +5 Vdc Regulator Trays

J6
Top

Rear
Bottom
E10
A. Master Tray

Top

Rear
Bottom

B. Booster Tray
MK233942

Removal and Replacement 5–43

Removal and Replacement

Perform the following procedure to remove the +5 Vdc regulator trays:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
XMI chassis and on the power controller.
1. Extend the XMI chassis for service (see Section 5.3.2).
2. Remove the top cover (see Section 5.3.3).
WARNING
High voltage is present on the power supply connectors for about
30 seconds after the XMI circuit breaker is turned off.
3. Disconnect the power supply connectors from the appropriate +5 Vdc
regulator tray to be replaced (see Figure 5–21 and Figure 5–22).
4. Remove the bottom cover (see Section 5.3.4).
5. Remove the two 8-32 KEP nuts from the (-) bus bar on each of the +5 Vdc
regulator trays (see Figure 5–25).
6. Lift the bus bar off of the mounting posts and carefully bend the (-) bus bar
down and back out of the way so that the tray will clear the bus bar when the
tray is removed (see Figure 5–25).
7. Remove the horseshoe shaped bus bar.
8. Remove the two 8-32 KEP nuts from the (+) bus bar on each of the +5 Vdc
regulator trays (see Figure 5–25).
9. Remove the horseshoe shaped bus bar.
10. Lift the bus bar off of the mounting posts and carefully bend the (+) bus bar
down and back out of the way so that the tray will clear the bus bar when the
tray is removed (see Figure 5–25).
NOTE
It is not necessary to bend the bus bar out of the way to remove
the master regulator tray.

5–44 Removal and Replacement

Removal and Replacement

11. Remove the two screws securing the +5 Vdc regulator tray in the power
supply assembly (see Figure 5–25).
NOTE
If the tray to be replaced is the 5 Vdc master module, you must
disconnect the ribbon cable from connector J6 before completely
removing the tray (see Figure 5–24).
12. Remove the +5 Vdc regulator tray from the power supply assembly.
To replace the +5 Vdc regulator trays, reverse steps 1 through 12.

Removal and Replacement 5–45

Removal and Replacement

Figure 5–25 Removing a Power Supply Tray

Front

−5.2 Vdc Lead

(+) Bus Bars

(−) Bus Bars
3.3 Vdc/−5.2 Vdc
Regulator

5 Vdc Master
5 Vdc Booster
Sequencer and Auxiliary
DC Voltage Regulator

5–46 Removal and Replacement

MK−2339−43

Removal and Replacement

5.3.10 Sequencer and Auxiliary DC Voltage Regulator Tray (PN
70-29046-03)
The sequencer and auxiliary dc voltage regulator tray provides +12 Vdc to the
airflow sensors located at the rear of the cage. The -12 Vdc is used to power up
the two Ethernet adapters. It also provide ±12 Vdc to the XMI cage and to the
XTC module to drive the serial port. +24 Vdc is provided for the two cooling air
fans in the XMI chassis. In addition, (-2 Vdc) is provided to the XMI chassis. The
power system sequencing circuitry is also resident on this tray. See Figure 5–25
for location.
FRUs on this tray (see Figure 5–26) include:
•

Two 12 Vdc miniconverters (PN 20-34930-01) (E3 and E4)

•

One 24 Vdc miniconverter (PN 20-34930-02) (E2)

•

One 5 Vdc miniconverter (PN 20-34930-03) (E10)

Removal and Replacement 5–47

Removal and Replacement

Figure 5–26 Sequencer and Auxiliary DC Voltage Regulator Tray
E3
-12 Vdc
E4
+12 Vdc

Top

Rear
Bottom
E10
-2 Vdc

E2
+24 Vdc
MK233944

5–48 Removal and Replacement

Removal and Replacement

Perform the following procedure to remove the sequencer and auxiliary dc voltage
regulator tray:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
XMI chassis and on the power controller.
1. Extend the XMI chassis for service (see Section 5.3.2).
2. Remove the top cover (see Section 5.3.3).
WARNING
High voltage is present on the power supply connectors for about
30 seconds after the XMI circuit breaker is turned off.
3. Disconnect the power supply connectors from the tray (see Figure 5–21 and
Figure 5–22).
4. Remove the bottom cover (see Section 5.3.4).
5. Remove the two power distribution cables by unplugging the connectors and
pushing the cables back out of the way (see Figure 5–25).
6. Remove the CK-DEMNA Ethernet connections, if used.
7. Remove the two screws securing the sequencer and auxiliary dc voltage
regulator tray in the power supply assembly (see Figure 5–25).
NOTE
There are two cables connected to the sequencer and auxiliary
dc voltage regulator tray that must be disconnected. Disconnect
these cables as the tray is being slid out of the chassis.
8. Remove the sequencer and auxiliary dc voltage regulator tray from the power
supply assembly.
To replace the sequencer and auxiliary dc voltage regulator tray, reverse steps 1
through 8.

Removal and Replacement 5–49

Removal and Replacement

5.3.11 3.3 Vdc/-5.2 Vdc Regulator Tray (PN 70-29046-04)
The 3.3 Vdc/-5.2 Vdc regulator tray, (see Figure 5–27), provides +3.3 Vdc and -5.2
Vdc to the system backplane. See Figure 5–25 for location.
NOTE
The +3.3 Vdc is not used by the rackmount DEC 7000 AXP and
VAX 7000 systems.
FRUs on this tray include:
•

Two 5 Vdc master converter modules (PN 20-34928-01) (E10, E2)

•

One 5 Vdc booster converter module (PN 20-34929-01) (E4)

Figure 5–27 3.3 Vdc/-5.2 Vdc Regulator Tray

J6
E2
E4

Top

Rear
Bottom

E10
-5.2 Vdc

#10 Ring
Terminal
MK233945

5–50 Removal and Replacement

Removal and Replacement

Perform the following procedure to remove the 3.3 Vdc/-5.2 Vdc regulator tray:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
XMI chassis and on the power controller.
1. Extend the XMI chassis for service (see Section 5.3.2).
2. Remove the top cover (see Section 5.3.3).
WARNING
High voltage is present on the power supply connectors for about
30 seconds after the XMI circuit breaker is turned off.
3. Disconnect the power supply connectors from the tray (see Figure 5–21 and
Figure 5–22).
4. Remove the bottom cover (see Section 5.3.4).
5. Remove the -5.2 Vdc lead (white wire) from the stud on the backplane (see
Figure 5–25).
6. Remove the two 8-32 KEP nuts from the (-) bus bar on the 3.3 Vdc/-5.2 Vdc
regulator tray (see Figure 5–25).
7. Bend back the (-) bus bar.
8. Remove the two screws securing the 3.3 Vdc/-5.2 Vdc regulator tray in the
power supply assembly (see Figure 5–25).
NOTE
Disconnect the ribbon cable from connector J6 before completely
removing the tray (see Figure 5–27).
9. Remove the 3.3 Vdc/-5.2 Vdc regulator tray from the power supply assembly.
To replace the 3.3 Vdc/-5.2 Vdc regulator tray, reverse steps 1 through 9.

Removal and Replacement 5–51

Removal and Replacement

5.3.12 24 Vdc Fan (PN 12-23374-07)
The XMI chassis contains two 24 Vdc fans located toward the rear of the chassis.
Perform the following procedure to remove the fan assembly:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
XMI chassis and on the power controller.
1. Extend the XMI chassis for service (see Section 5.3.2).
2. Remove the top cover (see Section 5.3.3).
3. Disconnect the two power cables, one from each fan (see Figure 5–28).
4. Loosen the two screws that secure the fan assembly to the top frame of the
chassis (see Figure 5–28).
5. Tilt the fan assembly toward the front of the chassis and remove through the
top opening.
6. Replace the inoperative fan by removing the finger guards and removing the
fan from the fan assembly.
NOTE
Retain the spring clips and finger guard screws for installing
the new fan. Note the orientation of the airflow and rotation
indicators when installing the new fan.
To replace the fan assembly, reverse steps 1 through 6.

5–52 Removal and Replacement

Removal and Replacement

Figure 5–28 Removing the Fan Assembly

Fan Assembly Screws
Power Cables

MK−2339−46

Removal and Replacement 5–53

Removal and Replacement

5.3.13 Airflow Sensors (PN 12-36060-01)
The XMI chassis contains two airflow sensors located at the rear of the card cage
between the fans and the card cage.
Perform the following procedure to remove the airflow sensors:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
XMI chassis and on the power controller.
1. Extend the XMI chassis for service (see Section 5.3.2).
2. Remove the bottom cover (see Section 5.3.4).
NOTE
Note the position of the airflow sensor and the orientation of the
sensor hole in respect to the card cage before removing the old
unit. Replace this with a new unit positioned in exactly the same
configuration as the original unit.
3. Carefully note the position and orientation of the sensors in relation to the
card cage.
4. Disconnect the airflow sensor cable connector (see Figure 5–29).
5. Loosen the screws that secure the airflow sensors in their brackets (see
Figure 5–29).
6. Slide the airflow sensors from the brackets that secure them to the rear of the
card cage (see Figure 5–29).
To replace the airflow sensors, reverse steps 1 through 6.

5–54 Removal and Replacement

Removal and Replacement

Figure 5–29 Airflow Sensors on Rear of Card Cage
Airflow Sensors

Bracket Screws

Sensor Brackets
Airflow Sensor Connector
MK−2339−47

Removal and Replacement 5–55

Removal and Replacement

5.3.14 AC Input Assembly (PN 70-31008-01)
The ac input assembly is located at the rear of the XMI chassis.
Perform the following procedure to remove the ac input assembly:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
XMI chassis and on the power controller.
1. Extend the XMI chassis for service (see Section 5.3.2).
2. Remove the bottom cover (see Section 5.3.4).
WARNING
High voltage is present on the ac front end tray connectors for
about 30 seconds after the XMI circuit breaker is turned off.
3. Disconnect the ac input connectors from the rear side of the ac front end
trays, between the trays and the fans.
4. Slide the XMI chassis back into the equipment cabinet.
5. Open the rear door of the equipment cabinet.
6. Remove the six screws that secure the exhaust grill to the XMI chassis and
remove the exhaust grill (see Figure 5–30).
7. Reach through the exhaust grill opening and disconnect the red and white
wires (spade lug leads) from the circuit breaker.
8. Reach through the exhaust grill opening and remove the outside nut from the
ground stud and disconnect the two ground wires (green/yellow) coming from
the ac front end tray connectors.
9. Reach through the exhaust grill opening and remove the inside nut from the
ground stud and disconnect the ground wire (green/yellow) coming from the
ac input line filter.
10. Remove the 8 screws (3 on the side, 1 on the top, and 4 on the rear) that
secure the ac input assembly in the chassis (see Figure 5–30).

5–56 Removal and Replacement

Removal and Replacement

11. Remove the ac input assembly while carefully guiding the cables to the ac
front end trays through the opening below the assembly.
NOTE
It may be helpful to remove the I/O bulkhead plate cover below
the ac input assembly to help guide the ac front end tray cables
through the opening below the assembly.
To replace the ac input assembly, reverse steps 1 through 11.

WARNING
When reconnecting the green/yellow ground wires, ensure that
the ground wire from the ac input line filter is secured against
the chassis wall with a separate nut before reconnecting the two
ground wires from the ac front end tray connectors.

Removal and Replacement 5–57

Removal and Replacement

Figure 5–30 Removing the AC Input Assembly

Top Screw
3 Side Screws

AC Input Assembly

4 Rear Screws

Exhaust Grill

MK−2339−48

5–58 Removal and Replacement

Removal and Replacement

5.3.15 TF85 Tape Drive
Perform the following procedure to remove the TF85 tape drive:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
XMI chassis and on the power controller.
1. Extend the XMI chassis for service (see Section 5.3.2).
2. Remove the top cover (see Section 5.3.3).
3. Remove the four screws that secure the RRD42/TF85 option cage to the right
side of the chassis.
4. Tilt the rear of the RRD42/TF85 option cage upward and disconnect the two
connectors from the back of the TF85.
5. Push the two connectors from the back of the TF85 back through the access
slot located on the rear of the RRD42/TF85 option cage.
6. Tilt the RRD42/TF85 option cage upward at the rear and lift the cage out.
7. Remove the four screws (two at the top and two at the bottom) that secure
the TF85 tape drive in the option cage.
8. Slide the TF85 tape drive out of the option cage.
To replace the TF85 tape drive, reverse steps 1 through 8.

Removal and Replacement 5–59

Removal and Replacement

5.3.16 TF85 Interface Board
Perform the following procedure to remove the TF85 interface board:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
XMI chassis and on the power controller.
1. Extend the XMI chassis for service (see Section 5.3.2).
2. Remove the top cover (see Section 5.3.3).
3. Remove the bottom cover (see Section 5.3.4).
4. Disconnect the power supply connector harnesses from the top of the power
supply trays and ensure that they are properly labeled for reconnection.
5. Remove the six screws securing the cover over the power supply trays and
remove the cover.
CAUTION
You must wear an antistatic wriststrap attached to the chassis
when handling any modules.
6. Put on the antistatic wriststrap. This strap is contained in the plastic pouch
located on top of the power supply modules.
7. Disconnect the three cables from the TF85 interface board(s) that is mounted
inside the right side of the chassis, behind the RRD42/TF85 option cage.
8. Squeeze the ends of the four standoffs securing the board(s) to the chassis
(access two from the top and two from the bottom), and move the board past
the locking tab on each standoff.
9. Lift the board out through the top of the chassis.
To replace the TF85 interface board, reverse steps 1 through 9.

5–60 Removal and Replacement

Removal and Replacement

5.3.17 RRD42 CD-ROM Reader
Perform the following procedure to remove the RRD42 CD-ROM reader:
WARNING
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
XMI chassis and on the power controller.
1. Extend the XMI chassis for service (see Section 5.3.2).
2. Remove the top cover (see Section 5.3.3).
3. Remove the four screws that secure the RRD42/TF85 option cage to the right
side of the chassis.
4. Tilt the rear of the RRD42/TF85 option cage upward and disconnect the two
connectors from the back of the RRD42.
5. Push the two connectors from the back of the RRD42 back through the access
slot located on the rear of the RRD42/TF85 option cage.
6. Tilt the RRD42/TF85 option cage upward at the rear and lift the cage out.
7. Remove the four screws (two at the top and two at the bottom) that secure
the RRD42 CD-ROM reader in the option cage.
8. Slide the RRD42 CD-ROM reader out of the option cage.
To replace the RRD42 CD-ROM reader, reverse steps 1 through 8.

Removal and Replacement 5–61

A
Option Installation
A.1 Introduction
This appendix contains general instructions for installing options in the XMI
(BA601-AC) chassis and the specific installation instructions for the 2T-CIXCDRA option.

A.2 Accessing the XMI Card Cage
Perform the following procedure to access the XMI card cage:
WARNING
Before performing this procedure, switch off the circuit breakers
on the back of the XMI chassis and on the power controller.
1. Extend the stabilizing legs at the front of the cabinet (if stabilizing legs are
provided).
WARNING
Before extending the XMI chassis for service, ensure that the rack
or cabinet is stable and that all provided stabilizing features have
been activated. The stabilizing features for the rack or cabinet
are configuration dependent.
2. Extend the XMI chassis for service (see Section 5.3.2).

Option Installation A–1

Option Installation

3. Remove the top cover (see Section 5.3.3).
CAUTION
You must wear an antistatic wriststrap attached to the chassis
when handling any modules.
4. Put on the antistatic wriststrap. This strap is contained in the plastic pouch
located on top of the power supply modules.
5. Select the slot where the option card is to be installed and lift the lever to
open the chosen slot. Figure A–1 shows the slot designations of the XMI card
cage as viewed from the top front of the chassis.
6. Align the option card with the chosen slot and slide the card down into the
slot until it stops.
7. Lower the lever to lock the card into the slot.
8. Replace the top cover.
9. Proceed to Section A.3 and perform the cabling of the option.

A–2 Option Installation

Option Installation

Figure A–1 Top Front View of Card Cage Slot Designations

Inside BA601−AC
XMI Card Cage

Chassis
XTC

E D C B A 9 8

7 6 5 4

3 2 1

Front Bezel
MK−2339−49

Option Installation A–3

Option Installation

A.3 Cabling of Options Installed in the XMI Chassis
Perform the following procedure to access the XMI chassis card cage backplane
area to install the option cables:
WARNING
Before performing this procedure, switch off the circuit breakers
on the back of the XMI chassis and on the power controller.
1. Extend the stabilizing legs at the front of the cabinet (if stabilizing legs are
provided).
WARNING
Before extending the XMI chassis for service, ensure that the rack
or cabinet is stable and that all provided stabilizing features have
been activated. The stabilizing features for the rack or cabinet
are configuration dependent.
2. Extend the XMI chassis for service (see Section 5.3.2).
3. Remove the bottom cover (see Section 5.3.4).
4. Press in on the left and right slide locks and slide the XMI chassis back into
the equipment cabinet.
5. Access the I/O bulkhead at the rear of the XMI chassis.
6. Remove the number of plate covers from the I/O bulkhead that are required
for the installation of the option’s cable assembly plate.
7. Feed the option’s cables through the opening in the I/O bulkhead.
8. Attach the cable assembly plate to the I/O bulkhead by using the proper
number of screws.
9. Extend the XMI chassis and route the option cables through the bottom of the
XMI chassis to the card cage backplane.
10. Connect the option cables to the backplane slot that the option is installed
in by following the installation instructions provided with the option being
installed in the chassis (Figure A–2).

A–4 Option Installation

Option Installation

Figure A–2 Bottom View of Card Cage Slot Designations
XMI Backplane
Front

E 2 1
D 2 1
E D
Slots

MK−2339−50

11. Replace the bottom cover.
12. Press in on the left and right slide locks and slide the XMI chassis into the
cabinet.
13. Install the four retaining screws that secure the chassis to the front rails.
14. Replace the front bezel.

Option Installation A–5

Option Installation

A.4 Installing the 2T-CIXCD-RA Option
The 2T-CIXCD-RA option provides the interface between the rackmount DEC
7000 AXP and VAX 7000 systems high-speed XMI bus and the CI bus.
The 2T-CIXCD-RA option kit consists of the following (see Figure A–3):
•

T2080-YA module

•

CK-CIXCD-RA cabinet kit

Figure A–3 2T-CIXCD-RA Option Kit Contents

T2080−YA Module

CK−CIXCD−RA
Cabinet Kit

MK−2339−51

A–6 Option Installation

Option Installation

Perform the following procedure to install the 2T-CIXCD-RA option:

WARNING
Before performing this procedure, switch off the circuit breakers
on the back of the XMI chassis and on the power controller.
1. Extend the stabilizing legs at the front of the cabinet (if stabilizing legs are
provided).
WARNING
Before extending the XMI chassis for service, ensure that the rack
or cabinet is stable and that all provided stabilizing features have
been activated. The stabilizing features for the rack or cabinet
are configuration dependent.
2. Extend the XMI chassis for service (see Section 5.3.2).
3. Remove the top cover (see Section 5.3.3).
CAUTION
You must wear an antistatic wriststrap attached to the chassis
when handling any modules.
4. Put on the antistatic wriststrap. This strap is contained in the plastic pouch
located on top of the power supply modules.
5. Select the slot where the T2080-YA module is to be installed and lift the lever
to open the chosen slot. Figure A–1 shows the slot designations of the XMI
card cage as viewed from the top front of the chassis.
6. Align the T2080-YA module with the chosen slot, with the components facing
to the right of the card cage, and slide the module down into the slot until it
stops.
7. Lower the lever to lock the module into the slot.
8. Replace the top cover.
9. Remove the bottom cover (see Section 5.3.4).

Option Installation A–7

Option Installation

10. Press in on the left and right slide locks and slide the XMI chassis back into
the equipment cabinet.
11. Access the I/O bulkhead at the rear of the XMI chassis.
12. Remove the plate covers from a quad position on the I/O bulkhead for the
installation of the cable assembly plate.
13. Feed the connectors from both cables through the opening in the I/O
bulkhead.
14. Attach the cable assembly plate to the I/O bulkhead by using the four screws.
15. Extend the XMI chassis and route the connectors from both cables through
the bottom of the XMI chassis to the card cage backplane.
16. Connect the cables to the backplane slot that the T2080-YA module is
installed in. Refer to Figure A–2 for backplane slot locations.
17. Connect the 30-pin (keyed) RaRb cable connector of the Receive coaxial cable
into the T2080-YA slot, Section E1, of the backplane (see Figure A–4).
18. Connect the 30-pin (unkeyed) TaTb cable connector of the Transmit coaxial
cable into the T2080-YA slot, Section D1, of the backplane (see Figure A–4).
NOTE
The cable exiting this connector must face towards the front of
the chassis when installed.
19. Install the +5 Vdc jumper in the T2080-YA slot, Section E2, of the backplane
at pin location 45-15 for CIXCD setting (see Figure A–4).
20. Refer to the CIXCD Interface User Guide for instructions on setting cluster
size (T2080-YA slot, Section D2).
21. Dress the cables as shown in Figure A–4.

A–8 Option Installation

Option Installation

Figure A–4 Installing the 2T-CIXCD-RA Connectors and Jumper

+5 Vdc Jumper

Front

Cable Exiting
Connector
Faces Front
Tie Wrap

Ra Rb
Cable

Ta Tb
Cable
D

MK−2339−52

22. Replace the bottom cover.
23. Press in on the left and right slide locks and slide the XMI chassis into the
cabinet.
24. Install the four retaining screws that secure the chassis to the front rails.
25. Replace the front bezel.

Option Installation A–9

B
Field Replaceable Units
This appendix lists the major field replaceable units (FRUs) for the LSB
(BA700-AA) and the XMI (BA601-AC) chassis.
Table B–1 lists the major field replaceable units (FRUs) and part numbers for the
LSB (BA700-AA) chassis.
Table B–1 LSB Chassis Field Replaceable Units
Part Description

Part Number

48 Vdc Power Supply

30-39348-02

Control Panel

54-21719-01

Blower Assembly

12-41009-01

AC Input Box

30-39579-01

I/O Port Controller Module

E2044-AA

DEC 7000 AXP CPU Module

E2040-AA

VAX 7000 CPU Module

E2045-AA

64-MB Memory Module

E2043-AA

128-MB Memory Module

E2043-BA

256-MB Memory Module

E2043-CA

512-MB Memory Module

E2046-AA

Power Cord

17-00083-37

DEC Power Bus Cable (BA700 to first power controller)

70-31534-01

DEC Power Bus Extender (master power controller to slave)

70-08288-3F

Console Cable

17-01364-02

Field Replaceable Units B–1

Field Replaceable Units

Table B–2 lists the major field replaceable units (FRUs) and part numbers for the
XMI (BA601-AC) chassis.
Table B–2 XMI Chassis Field Replaceable Units
Part Description

Part Number

Control Panel Bezel

70-22117-01

Control Panel Module

54-16574-02

XTC Timing Module

70-31509-01

AC Front End Tray Assembly

70-27334-01

+5 Vdc Master Regulator Tray

70-29046-01

+5 Vdc Booster Regulator Tray

70-29046-02

5 Vdc Master Converter Module

20-34928-01

5 Vdc Booster Converter Module

20-34929-01

Sequencer and Auxiliary DC Voltage Regulator Tray

70-29046-03

12 Vdc Miniconverter

20-34930-01

24 Vdc Miniconverter

20-34930-02

5 Vdc Miniconverter

20-34930-03

3.3 Vdc/-5.2 Vdc Regulator Tray

70-29046-04

5 Vdc Master Converter Module

20-34928-01

5 Vdc Booster Converter Module

20-34929-01

24 Vdc Fan

12-23374-07

Airflow Sensor

12-36060-01

AC Input Assembly

70-31008-01

I/O Cable [135 cm (53.15 in.)]

17-03085-02

I/O Cable [290 cm (114.18 in.)]

17-03085-01

Twist-lock Adapter Cord

70-31504-01

B–2 Field Replaceable Units

C
Send Us Your Comments
We welcome your comments on this manual. Please take the time to fill out the
Reader’s Comments/Mailer page that follows. Your input is valuable in improving
future releases of our documentation.

Send Us Your Comments C–1

Reader’s Comments

Rackmount DEC 7000 AXP
and VAX 7000 Systems
Installation/Owner’s Guide
EK-R7000-IN.A01

Your comments and suggestions help us improve the quality of our publications.
Thank you for your assistance.

I rate this manual’s:

Excellent

Good

Fair

Accuracy (product works as manual says)
Completeness (enough information)
Clarity (easy to understand)
Organization (structure of subject matter)
Figures (useful)
Examples (useful)
Index (ability to find topic)
Page layout (easy to find information)
I would like to see more/less
What I like best about this manual is
What I like least about this manual is

I found the following errors in this manual:
Page
Description

Additional comments or suggestions to improve this manual:

For software manuals, please indicate which version of the software you are using:

Name/Title

Dept.

Company

Date

Mailing Address
Phone

Poor

Do Not Tear – Fold Here and Tape
TM

BUSINESS REPLY MAIL
FIRST CLASS PERMIT NO. 33 MAYNARD MASS.
POSTAGE WILL BE PAID BY ADDRESSEE

DIGITAL EQUIPMENT CORPORATION
Information Design and Consulting
ZKO1–3/J35
110 SPIT BROOK RD
NASHUA, NH 03062–9987

Do Not Tear – Fold Here

No Postage
Necessary
If Mailed
in the
United States