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Document:	BA430/BA440 Enclosure Maintenance
Order Number:	EK-348AD-MG
Revision:	004
Pages:	156
Original Filename:

OCR Text

BA430/BA440 Enclosure Maintenance

Oider Number EK-348AD-MG-004

Digital Equipment Corporation
Maynard, Massachusetts

First Printing, September 1990
Second Printing, July 1991
Third Printing, May 1992
Fourth Printing, October 1992

The information in this document is subject to change without notice and should not be
construed as a conimitment by Digital Equipment Corporation.

Digital Equipment Corporation assumes no responsibility for any errors that may appear in
this document.

The software, if any, described, in this document is furnished under a license and may be
used or copied only in accordance with the terms of such license. No responsibility is assumed
for the use or reliability of software or equipment that is not supplied by Digital Equipment
Corporation or its affiliated companies.

Restricted Rights: Use, duplication or disclosure by the U.S. Government is subject to
restrictions as set forth in subparagraph (¢)(1)i1) of the Rights in Technical Data and Computer
Software clause at DFARS 252.227.-7013.
©Digital Equipment Corporation 1990, 1991, 1992,
Al Rights Reserved.

The Reader’s Comments form at the end of this document requests your critical evaluation to
assist in preparing future documentation.

The following are trademarks of Digital Equipment Corporation: CompacTape, CX, DDCMP,
DEC,

DECconnect,

DECdirect,

DECnet,

DECscan,

DECserver,

DECUS,

DECwindows,

DELNI, DEMPR, DESQA, DESTA, DSRVB, NSSI, 1VAX, KDA, KLESI, KRQ50, MicroVAX,
MSCP Q-bus, 322-bus, RA, RQDX, RV20, RRD40, SA, SDI, ThinWire, TK, TMSCP, TQK,
TSO5, TU, VAX, VAX 4000, VAXcluster, VAX DOCUMENT, VAXELN, VAXlab, VAXserver,
VMS, VT, and the DIGITAL logo.
Velero is a registered trademark of Velero USA, Inc.

FCC NOTICE: The equipment described in this manual generates, uses, and may emit radio
frequency coergy. The equipment has been type tested and found to comply with the limits for
a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed
to provide reasonable protection against such radio frequency interference when operated in
a commercial environment.

Operaiion of this equipment in a residential area may cause

interference, in which case the user at his own expense may be required to take measures to
correct the interference.

52043

This document was prepared using VAX DOCUMENT, Version 2.1.

Contents
xi

Preface

Chapter 1

BA430/BA440 Enclosure Description

e
e
OVervVIeW . .. o
Enclosure Keylock Aecess. ... ... L
... ...
Module Handles . ndCovers . ................

1-1

Filler Panel Between Flush and Recessed Handles .. . . ..
Mass Storage Shelf .. ... ... ...

1-8

...
EF-Series, RF-Series and RZ-Series ISEs ... .........

1-11

TapeDrives ... ... ... .. . . . ...
... ... ..
.....
...
System Control Panel (SCP) .......

1-15
1-17

...
iy
... .
Enclosure Modification . . .....
Halt and Restart Switch Disable ... .................
...
EnclosureCardCage . ....... ... ... ... . ... . . .
1.8
Components Specific to the DECsystem 5500 in a BA430
1.8.1
Enclosure . . ... ... .. e
H3602-AC CPU Cover Panel Used in the DECsystem
1.8.1.1
e
BB00 . . .

1-19

1.1
1.2
1.3
1.3.1

1.4
1.5
1.6
1.7
1.71
1.7.2

1812

1.8.1.3

1.8.2

1.8.2.1

H3605 1/0 Panel Used in the DECsystem 5500 . ... ...
M9715 Backplane Interface Module . . . .............

Components Specific to VAX 4000 Model 200 System in a
BA430 Enclosure . . ... ... . ... . e
H3602--AA CPU Cover Panel Used in VAX 4000 Model
200 (BA430O0nly). . ...

1-3
1-5

1-9

1-19

1-20
1-21
1-22
1-22
1-24
1-24

1-25

1.8.22

M9715 Backplane Interface Module . . . .............

1-25

1.8.3

Components Specific to VAX/VAXserver 4000 Models 300,
500, and 600 in a BA440 Enclosure . ... ..............
H3604 Console Module (Used in BA440 Enclosure) . ...

1-26

... ... ... . ...

1-32

H7874 Power Supply Switches and Controls . ..........

1--33

1.8.3.1
1.9
1.9.1

Power Supply (H7874) . ... ... .. ...

1-27

1.9.2
110

H7874 Shutdown Mode . .......
... .. .. .. .. ... .....
FanTray . ...

1.10.1

1-35
1-36

Fan Speed Control Disable. . ... ... .................

1-37

Backplanes. ... ... ... .. ... ..

1-37

1.11.1

BA430 Backplane . . .. .. .. ... ... ...

1-39

1.11.2

BA440 Backplane . . . .. ...

.. ..o

140

Configuration Guidelines . . ..........................

1-41

1.12.1

Module Order and Configuration . . .. .. ..............

1-42

1.12.2

Configuration Worksheets . .......
... ... ...... ...

142

1.11

1.12

1.13

Power Requirements .. ..... ... .. .. ... . ...

... ..

1-46

...

2-1

2.1.1

BA430/BA440 Physical Dimensions . . .. .......
... ...

2-1

2.1.2

Additional Equipment .. ... ... ... ..

o L

2-2

2.1.3

Static Electricity

.. ... .

2-2

214

Acoustics .. ... ... .. ...
e

2-3

2.1.5

Heat Dissipation

2-3

2.1.6

Temperature and Humidity Values

.. ... ... ... ... .. ..

2-3

2.1.7

Electrical Requirements . ... ... ............
... ....

Chapter 2
2.1

Installation

Site Preparation.

. ... ... . ... .. ... ... ... ...

.. . ...

... ..........
... ... ... .........

2.2

Unpacking the Shipment . . ... ...

2-5

2.3

Connecting the Console Terminal . . . ... ... ... ... .......

2-7

2.4

Completing the Installation . ... ... ...

...... ..

2-10

24.1

Setting Controls on the System . . .. .................

2-12

242

Connecting the Power Cable .. ...

2-13

Chapter 3

... ...

.. ...

... ...

...

BA430/BA440 FRU Removal and Replacement

3.1

Field Replaceable Units (FRUs) . .. .. ...

... ...........

3-2

RemovingModules...........
... ... ... . ... ...,

3-5

3.2.1

Removing Modules with Ratchet Ejector Handles . .. . ...

3-6

3.22

Removing Modules with Attached Handles . ... .. ...
..

3-7

323

Removing Modules with Covers . . ... ......
... .......

3-9

3.24

Special Modules . . .. ...

3-10

3.24.1

...

.. .. ... ... ...

M9715-AA Interface Module (BA430 Enclosure Only)..

3-10

3.242

M7638-AA 1/0 Module (BA430/DECsystem500) . ... ..

3-10

3243

Vterm Board Removal (BA440 Enclosure Only) . .. ..
..

3-10

3.3

Replacing EF-, RF-, and RZ-Series ISEs . . ..............

3-11

3.3.1

Removing an ISE from the Mass Storage Cavity ... ... ..

3-11

3.3.2

Replacing the Remote Front Panel Cable on a 3.5-inch
RFseriesISE. ... ... ... ... .. . ... ... ... . .........

3-15

3.3.3

Replacing the ISE Front Panel Module ... ............

3-15

3.3.4

Replacing the Interface Card . . .. ...................

3-16

Replacing the Interface Card on the 5.25-inch EF-, RFand RZ-Series ISEs . .............
... ... ......

3-16

3.34.1.1

Remove the Top Bracket ......................

3-17

3.3.4.1.2

Install the New the InterfaceCard ..............

3-18

Replace the Interface Card on 3.5-inch RF-Series ISEs .

3-20

33421

Remove the Top Outside Bracket . . .. ............

3-20

3.3.422

Remove the Old Interface Card and Install the New
InterfaceCard . ... ...... .. .. .. ... ... .. .....

3-21

3.3.5

Replacing the Remote Front Panel Cable on 5.25-inch ISEs

3-23

3.3.6

Replacing a Storage Device on a 5.25-inch RF- or RZ-Series
ISE . ..

3-25

Replacing a Storage Device on a 3.5-inch RF-Series ISE ..

3-27

Installing the New Storage Device . . . ..............

3-30

3.3.4.1

3.342

3.3.7
3.3.7.1
3.3.8

Replacing the Battery Pack on an EF-Series ISE

3.3.8.1

3-30

Removing the Mounting Hardware from an EF-Series
ISE. . ..

3-30

Replacing the Battery Pack in the Chassis

........
..

3-33

Replacing the TLZ04 Tape Drive . . ... .................

3-35

3.3.8.2
3.4

.. ...
.

3.4.1

Remove the TLZ04 Tape Drive.

... ..... ... ...........

3-36

3.42

ReplacingtheIDCable

.. ... ...... . ................

3-38

3.4.3

Replacing the TLZ04 Front Panel Module ... ..........

3-39

3.44

Replacing the Interface Card Assembly ............
...

340

34.4.1

Removing the Top Mounting Bracket . . .. ...........

340

3.442

Removing the Interface Card Assembly ... .......
...

3-42

3.45
3.5

ReplacingtheTapeDrive.

... ......................

3-44

Replacing a TK-Series Tape Drive . ... .. ...............

3-46

3.5.1

Replace the Interface Card.

. .......................

347

3.56.2

Replace the TK-Series Tape Drive . . .. ...............

3-49

Replacing a TF-Series Tape Drive ... . .................

3-52

3.6

3.6.1

Replacing the TF-Series Front Panel Module. . ... ... ...

3-55

3.6.2

Replacing the Interface Card Assembly . . ........
... ..

3-56

3.6.3

Replacing the Tape Drive . . . . .. .. ...

... .. ...

3-58

... .. ..

3-60

.........
... .............

3-61

. ... ... ... ... .. ... ...

3-64

...

3.7

Removing the System Control Panel (SCP) ... ...

3.8

Removing the Power Supply

RemovingFans

3.10

Removing a BA430/BA440 Backplane

....

3-66

3.10.1

Installing a BA430/BA440 Backplane ..... ......... ..

3-72

3.10.2

Reinstalling the Outer Shell

... ... ....

3-73

Appendix A

. ... . ... .. ...

.. .. ...... ...

Related Documentation

Index

Figures
1-1

DBA430/BA440 Pedestal Enclosures

. ... ... ... .. ........

1-2

Keylock Positions . . ...........
... ... ... ... ... ......

1-3

BA400-Series Module Handles and Covers

...

1-8

1-4

BA400-Series Chassis and Mass Storage Shelf . ... ...
...

1-9

1-5

EF-Series 5.25-inch ISE (Front and Rear View). ...
. ... ...

1-11

1-6

RF- and RZ Series full height 5.25-inch ISE (Front and Rear
View) o

1-12

1-7

RF-Series 3.5-inch ISE Single Drive (Front and Rear View)

1-13

1-8

Front Panel Assembhies . . .. ...,

... ...

... . ... ...

1-14

1-9

TF-Series Tape Drive . .. . . ...

.. ... ... .. ... ...

...

1-15

1-10

TK70 Tape Drive .. ... ... ...

.. .. ... . ... ... . ...

1-16

1-11

TLZ-Series Tape Drive . . .. ...

... ... .. ...

... ......

1-17

1-12

SCP Indicators .. ... ... .. .. ... .. . . . . . .

1-18

1-13

SCP Enable/Disable Switch Location ... ............
...

1-20

1-14

BA430 Enclosure Backplane (DECsystem 5500) . ... ... ...

1-22

1-15

H3602-AC CPU Cover and H3605 I/0 Panel, Used in
DECsystem 5500 . . ... ... ... . ... ... ...

1-23

1-16

BA430 Enclosure Backplane (VAX 4000 Model 200 System) .

1-25

1-17

BA440 Enclosure Backplane

1-27

. .. ... . ...

...

. ... ..... ... ...... .. ... ..

1-18

H3604 Console Module (Front). . ......................

1-28

1-19

H3604 Console Module (Rear) . ....................
...

1-29

1-20

Power Supply Indicators .. .............
... ... ......

1-32

1-21

Sample Power Bus Configuration.

. ... ... .. ..... .. .. ...

1-35

1-22

BA430/BA440 Fan Tray Location . . ... .. ... ... ... ... ....

1-36

1-23

Fan Tray Extended

1-37

1-24

FSC Jumper Location

1-25

BA430 Backplane.

1-26

BA440 Backplane. ... ...... ...

...

141

1-27

BA430 Configuration Worksheet ...................
...

1-44

1-28

BA440 Configuration Worksheet . ..... .. ... ...........

145

BA430/BA440 Enclosure Dimensions . . . . ...............

2-2

2-92

Sliding the System into Place ........................

2-6

2-3

Connecting the Console Terminal to the BA430.........
..

2-8

2-4

Connecting the Console Terminal to the BA440 . . ...
... ...

2-9

2-5

Connecting the Power Cable

.........................

2-13

3-1

Ratchet Ejector Handles

. ....... ... ... ... ... ........

3-7

3-2

Releasing Quarter-Turn Captive Screws .. ... ...........

3-8

3-3

RemovingaModule ... ...... ... ...

3-9

Removethe ISE .. ..... ... ... ... ... ... ...

.. .......

3-13

3-5

Removing an ISE Front Panel Module . . . . ...........
...

3-16

3-6

Removing Bracket Screws .. ... ... .. ... ....... ... ....

3-17

3-7

Removing the ISE Top Bracket . ... ...................

3-18

3-8

Replacing the Interface Card Assembly . ... ... ..........

3-19

3-9

Remove the Top Outside Bracket From the ISE.

. ... ... ...

3-21

3-10

Replace the Interface Card . . .. . ... ... ...

... ... .....

3-22

3-11

Removing the Remote Front Panel Cable.

. . . ... .....
... .

3-24

3-12

Removing the ISE Top Bracket ... ....................

3-26

3-13

Remove the Top Outside Bracket Fromthe ISE. ...
... .. ..

3-28

3-14

Removing the Phillips Screws that Secure the Storage Device
to the Bottom Inside Bracket .. . ... ... ... ... ...... ...

3-29

Removing the Top and Bottom Brackets of a 5.25-inch
EF-Series ISE . ... ... .. ... .. ... .. ... . . . . .
...

3-32

Removing the Top of the Chassis on a 5.25-inch EF-Series
ISE .

3-33

3-17

Removing the Battery of a 5.25-inch EF-Series ISE. . .. . . ..

3-34

3-18

Removing the TLZ04 Tape Drive .. . ... ...

3-37

3-15
3-16

.. ...... ... ... .. .. .. ... .........
. ....... ...

... ... ............

138

. ...... ... ... . . .. ..

140

...

.. .. .

... ... ... .. .....

... ... .......

3-19

Removingthe IDCable .. ...... ... ...

... ...........

3-39

3-20

Removing the TLZ04 Front Panel Module .. .............

340

3-21

Removing Bracket Screws .. ..... ... ... ... ... .

3-41

3-22

Removing the Top Mounting Bracket . ... .......
.. ......

3-42

3-23

Removing the Interface Card Assembly .. ...............

3-43

3-24

Removing the Tape Drive . .. ... .. ...

... .. ... .....

3-45

3-25

Releasing TK-Series Captive Screws .. .................

3-46

3-26

Removing a TK-Series Drive Unit . .. ..................

3-47

3-27

Removing the Top Mounting Bracket . .. .........
... ....

3-48

3-28

Removing Bracket Screws . ........
... ... .. ... ... ...

3-49

3-29

Removing the Top Mounting Bracket . . .................

3-50

3-30

Removing a TK-Series Cable . ... .....................

3-52

3-31

Removing a TF-Series Drive Unit . ... .................

3-54

3-32

Removing the TF-Series Front Panel Module

.. ... ....
.

3-55

3-33

Removing Bracket Screws . . ...

... ... .. .. ... ...

3-56

3-34

Removing the Top Mounting Bracket . . . ......
... .. ... .

3-57

3-35

Removing the :nterface Card Assembly . . .......
... ... .

3-58

3-36

Removing the Top Mounting Bracket . . ... ..............

3-59

3-37

Removing the System Control Panel (SCP) .............
.

3-61

3-38

Removing the Power Supply Cable

. ...................

3-62

3-39

Discharging the Power Supply . . .. .........
... ... .....

3-63

340

Removing the Power Supply

3-64

341

Removing the Fan Tray .. ...... ...

.. ... ... .....

3-65

342

Removing the Fan Assembly .......................
..

3-66

3-43

Outer Shell Removal . ...

3-68

344

Bus Cable Locations (BA440) . . .. ...... .. ...

... ......

3-69

345

Rear Panel Removal (BA430/BA440) .. ...

...

... .....

3-71

346

Removing a Backplane . .. ........ ...

... .. .. .....

3-72

3-47

Door Installation .. ...

viii

...

..........
... ... .......

...

... ...

...

... . ...

...

..... ... .. ..

... ... ... ...

... .....

3-75

Tables
1-1

BA400-Series Module Handle and Cover Types . ... .......

1-6

1-2

SCP Switches and Functions . . .......................

1-20

1-3

DECsystem 5500 Module Order.

... ........
... ... .. ...

1-21

1-4

VAX 4000 Model 200 (BA430) Module Order . ... ......
. ..

1-24

1-5

BA440 Module Order . . .. .. ...

... . . ... ... ... . ...

1-26

1-6

H3604 Console Module Fuses

........................

1-30

1-7

Controls, Ports, and Indicators Available on the H3604 and
H3602 Console Modules . .. ............
... ... ... ....

1-31

1-8
H7874 Power Supply Switches, Controls,
and Indicators ... ... . ... ...
e

1-33

1-9

Power Requirements . ..............................

1-46

2-1

Temperature and Relative Humidity Values

.............

2-3

2-2

BA430/BA440 Enclosure Electrical Requirements ... ... ...

2-3

PowerCables ........ .. ... ... ... . ... .. ... . .. ...

2-4

Module Identification Labels .. .....................
..

2-10

2-5

OptionCables

2-12

3-1

BA430/BA440FRUs........

...... ... ... ... .. ... . ... .. ... ... . ...
... ... . . . . .

3-2

Preface
This manual provides reference, installation, and maintenance information
for the BA430 and BA440 enclosures.

Intended Audience
This document is intended only for Digital service personnel and qualified
self-maintenance customers.

Organization
This manual has three chapters and one appendix.
Chapter 1 provides an overview of the system enclosures, describing
controls, mass storage area and capacity, backplane, signal distribution,
power distribution, I/0 connections, and configuration guidelines.
Chapter 2 lists site preparation considerations and procedures for installing
the BA430/BA440 office pedestal configuration.

Chapter 3 describes removal and replacement procedures for fieldreplaceable units (FRUs). This chapter contains a list of the BA430/BA440
FRUs.

Appendix A contains a list of related documentation.

Notes, Cautions, and Warnings
Notes, cautions, and warnings appear throughout this manual. They Fave
the following meanings:
NOTE

Provides general information about the current topic.

CAUTION

Provides information to prevent damage to equipment or software.

WARNING Provides information to prevent personal injury.

The following symbols appear on the system power supply. Please review
their definitions below:

This warning symbol indicates risk of electric shock.

Warning.
To reduce the risk of injury, do not remove
modules, Integrated Storage Elements (ISEs), or the power
supply. No user-serviceable parts are inside.
This equipment has not been designed for connection to
an IT power system. (a power system without a directly
grounded neutral conductor).
This equipment should be plugged into a properly grounded
receptacle only.
This system contains an automatic voltage select power
supply.
Voltage selection is not required prior to
installation.

xii

Chapter 1

BA430/BA440 Enclosure Description
1.1 Overview
The BA430/BA440 enclosure shown in Figure 1-1 was designed to be used
as a freestanding pedestal in an office environment. The BA430/BA440
consists of the following components:
¢

Dual front door

Mass storage shelf for tape and disk ISEs

System control panel (SCP)

Enclosure card cage

Power supply

Fan tray

Backplane

BA430/BA440 Enclosure Description

1-1

Figure 1-1:

BA430/BA440 Pedestal Enclosures

Integrated Storage Elements (ISEs)

Tape Dnive

System Control

Panel (SCP)

Power Supply
Console Module

Tape Drive

System Control
Pane! (SCP)

~+—— Power Sup
ply

—— CPU Cover Panel

Card Cage
MLO-006698

1-2

BA430/BA440 Enclosure Maintenance

1.2 Enclosure Keylock Access
The setting of a three-position lock (Figure 1-2) on the BA430 and BA440
enclosures (hereafter referred to as BA400-series enclosures) determines
which controls you can access. The level of access is as follows:
1.

Top position opens the upper door, provides access to only the operator
control panel and the ISE and tape drive controls.

Middle position locks both doors, access is not provided to any controls.

Bottom position opens both doors together,
controls, including the system on/off switch.

provides access to all

BA430/BA440 Enclosure Description

1-3

Figure 1-2:

Keylock Positions

TM~ Key Lock

Top Key Position

Bottom Key Position
MLO 004207

1-4

BA430/BA440 Enclosure Maintenance

1.3 Module Handles and Covers
The BA400-series enclosures provide front access to the CPU, memory, and
option modules.
BA400-series modules have the following characteristics:

Modules that connect to external devices have bulkhead handles with
the I/0 connectors on the handle. The handles replace the insert panels
and internal cabling found in other enclosures. This design is easier to
maintain since it eliminates problems caused by faulty internal cabling.

Modules that do not have external /O connections have blank bulkhead
covers. The module behind the cover has handles or levers to aid in
inserting and removing the module. An example of this is the ratchet
used on the BA440 CPU/memory.

The module handles and blank covers form an electrical noise seal that
complies with requirements for controlling electromagnetic interference
(EMD) by:
*

(ontaining radio frequency interference generated by the system.

Keeping external radio frequencies from entering the enclosure.

The module handles and blank covers also help guarantee proper airflow.

NOTE: Module covers and handles are required to meet international
regulatory standards and to maintain proper cooling.

Each handle or cover has two captive quarter-turn Phillips screws to hold

to hold it in place.

The seven basic types of handles and covers, or paneis, used for BA400series compatible modules are:
*

Single-width flush handle

Single-width recessed handle

Ratchet ejector handle (BA440 CPU and memory only)

Single-width blank cover

Double-width console module (BA430 only)

Double-width blank cover

Five-wide console module (BA440 only)

BA430/BA440 Enclosure Description

1-5

Some modules have special configurations, such as the BA440’s H3604
console module, which is a hinged module cover that covers the CPU and
four memory modules. The H3604 console module also provides an 1/0
connector for the CPU. Table 1-1 describes the common handle variations.

Table 1-1:

BA400-Series Module Handle and Cover Types

Part

Description

Single-width
recessed handle

The handle is riveted to the module. This style is the preferred
handle for all BA200-series and BA400-series modules with
external VO connectors. The CXA16 and CXY08 communication
modules use this type of handle.

Single-width
flush handle

Used when a recessed handle would interfere with the module

cireuitry or I/OQ connector. The flush handle is also riveted to the
module. If you install this type of handle to the left of a module
with a recessed handle, you must add a metal filler panel (70-

24071-01) to maintain EMI/RFI compliance.

Ratchet ejector

The BA440 CPU and memory modules are equipped with ratchet

handle

gjector handles that keep the right amount of tension against the
backplane connector. This ratchet arrangement causes the CPU
and memory to make tight contact with the backplane bus and
provides better system reliability (BA440 CPU and memory only).
These handles are then covered by the H3604 console module.

Single-width
blank cover

Double-width blank

Covers a standard Q22-bus module that does not have external
/O connectors (for example, a TQK70). If you install this type
of cover next to a module with a recessed handle, you must add a
metal filler panel (70--24071-01)
to maintain EMI/RFI compliance.

Covers two

standard

Q22-bus

module slots

that

not have

connectors. [f you install this type of cover next to a module with a

recessed handle, you must add a metal filler panel (70-24071-01)
to maintain EMI/RF] compliance.

1-6

BA430/BA440 Enclosure Maintenance

Table 1-1 (Cont.):

BA400-Series Module Handlie and Cover Types

Part

Description

Double-width CPU cover

The H3602-AA CPU cover attaches over the CPU and one memory
module in the BA430 enclosure (VAX 4000 Model 200).
The
Hi3602-AC CPU cover attaches over the CPU and one memory
module in the BA430 enclosure (DECsystem 5500).
The H3602-AA/AC CPU covers interface with the CPU through a
short ribbon cable that connects the CPU to the CPU cover.

Hinged console module
with 1/0 (H3604)
{BA440 only)

The H3604 console module is a hinged 1/O panel that covers
the CPU module and four memory modules. The H3604 console
module interfaces with the CPU module through a short ribbon
cable that connects the CPU and the H3604 console module.

Ratchet ejector handles are used only with BA440 CPU and memory
modules (Figure 1-3). To install a module with ratchet ejector handles:
1.

2.
3.

Insert the module into the guide slot.

Position the ratchet ejector fingers into the latching slots at the top and

bottom of the card cage chassis.

Press the ratchet levers in until the module is seated in the backplane
(a reasonable feeling that the module fits tightly). The ratchet does not
need to be seated completely. The ratchet handles provide a method of
removing any slack that may exist between the module connector and
the backplane.

CAUTION: The module handle needs only to fit tightly. Too much force can
damage the ratchet handle.

BA430/BA440 Enclosure Description

1-7

Figure 1-3:

BAA400-Series Module Handles and Covers

4
Fillar

Panel

Lhfi

Single-Width
Blank Cover

LLfi_/'
Double-Width
Blank Cover

Stiftner with

Single-Width
Flush Handle

Ejector Handles

Single-Width
Recessed Handle

MLO-005413

1.3.1 Filler Panel Between Flush and Recessed Handles
When you use a module cover next to, or a flush-handle module to the
left of a recessed-handle module, you must install a metal filler panel
(Figure 1-3) between the modules. Without the filler panel, circuitry on

the module (a flush-handle module or a module under a cover) adjacent to
the recessed-handle module is exposed. The filler panel (70-24071-01) has

four sets of finger stock that provide an effective chassis ground between
the handles. Flush handles have screw holes on top or bottom right side
only, while covers have screw holes at the top and bottom of each side for
the installation of this filler panel. Without the continuity provided by the
filler panel, the system will not maintain EMI/RFI compliance.

1-8

BA430/BA440 Enciosure Maintenance

1.4 Mass Storage Shelf
The BA430/BA440 enclosure has a mass storage shelf (Figure 1-4) that
extends across the top of the enclosure. The shelf contains the System
Control Pane! (SCP) and may contain:
»

EF-series ISEs

RF-series ISEs

RZ-series ISEs

TK-series tape drive

TF-series tape drive

TLZ-series tape drive

NOTE: VAX 4000 systems do not support RZ-series ISEs.

Figure 1-4:

BAA400-Series Chassis and Mass Storage Shelf

MLO-006704

BA430/BA440 Enclosure Description

1-9

NOTE: Within a system enclosure it is possible to have up to seven disk
storage devices, provided there is no tape drive in the enclosure. There can
be three RF-series 3.5-inch dual storage devices and one 5.25-inch EF- RFRZ-series storage device or a 3.5-inch single storage device.
A system can be configured with up to four 5.25-inch ISEs when a tape drive
is not present or three 5.25-inch ISEs when a tape drive is present. ISEs are
installed from right to left.

1-10

BA430/BA440 Enclosure Maintenance

1.5 EF-Series, RF-Series and RZ-Series ISEs
Figure 1-5 shows the 5.25-inch EF-series integrated storage elements (ISE).
Figure 1-6 shows the 5.25-inch RF- and RZ-series ISEs. Figure 1-7 shows
the 3.5-inch RF-series ISE configuration. The three types of ISEs vary as
follows:

5.25-inch EF-series ISEs are solid state storage devices.

RF- and RZ-series 5.25-inch 1SEs contain only one storage device.

RF-series 3.5-inch ISEs can contain two drives per ISE.

BA400-series ISEs contain hardware and a circuit module to allow the ISE
to be plugged into the enclosure backplane.
Figure 1-5:

EF-Series 5.25-inch ISE (Front and Rear View)
Bracket Slides
e

Bracket Slides

Front View

Rear View
MLO-009301

BA430/BA440 Enclosure Description

1-11

Figure 1-6:

RF- and RZ-Series full height 5.25-inch ISE (Front and Rear
View)
Bracket Shides

Front View

Rear View
MLO 007238

1-12

BA430/BA440 Enclosure Maintenance

Figure 1-7:

RF-Series 3.5-inch ISE Singie Drive (Front and Rear View)
Bracket Slides

Front View

Rear View
MLO-007240

Figure 1-5, Figure 1-6, and Figure 1-7, show the EF-series, RF-series, and

RZ-Series with bracket slides. Bracket slides are mounted on the ISE for

easier installation and removal.

ISEs, which are mounted from the front of the enclosure, contain shockmounting hardware.
The term "integrated storage element” is used for any Digital Storage
Systems Interconnect (DSSI) or Small Computer System Interface (SCSI)
storage device.
An ISE contains an on-board intelligent controller in
addition to the drive and the control electronics.
The DSSI interface supports up to seven ISEs. DSSI interfaces can be
embedded within a CPU module such as the KA670 module. They can also
be separate modules, such as the KFQSA, which is interfaced by a single
cable to a DSSI connector in the host enclosure.

EF-series ISEs are DSSI based solid state disk drives. There are two
types of the EF-series ISE. One type includes an integrated Data Retention
System (a 3 1/2-inch Winchester disk drive and a rechargeable battery)
that provides non-volatility in the event of an AC power failure. The
other is without a Data Retention System and has more memory modules,
increasing the device’s storage capacity.

BA430/BA440 Enclosure Description

1-13

RF-series ISE storage devices are based on the Digital Storage Architecture
(DSA). The RF-series ISEs utilize the DSSI bus and interface.
RZ-series ISEs utilize the SCSI bus and interface.

The SCSI interface

supports up to seven ISEs. SCSI interfaces can be embedded withiii a CPU
module such as the KN220 module. They can also be separate modules,

such as the KZQSA which is connected by a single cable to a SCSI connector
in the host enclosure or expander.
By convention the ISEs are numbered from mght to left.
A spacer panel (70-27414-01) is used to fill the extra space when a disk

ISE is installed in the right-most storage cavity.

Figure 1-8 shows the front panel assemblies:
Figure 1-8:

Front Panel Assemblies

Phithps Screw

EF/RF 5 25-inch

Phithps Screw

RF 3.51nch

Phillips Screw

RZ 5 25-inch
MLO-007235

NOTE: The ISE front panel for RZ-series ISEs, unlike the front panel for

EF-series und RF-series ISEs, has no buttons or indicators, only a plug for

the bus node 1D,

1-14

BAJ430/BA440 Enclosure Maintenance

1.6 Tape Drives
Three types of tape drives can be installed in the right-most storage cavity:
¢

TF-series

TK-series

TLZ-series

The top right compartment of the BA430/BA440 enclosure can contain a
TK-, TF-, or TLZ-series tape drive or another ISE such as an RF-series ISE
(or RZ-series ISE in DECsystem 5500 only).
Figure 1-9:

TF-Series Tape Drive

|. Unload

Button

7}
Write-Protected ———
Orange

Tape In Use —
Yellow

Use Cleaning Tape -/
Orange

Release Handle

— Cartridge Insert/

Operate Handle -~——‘/

Green

Bus Node -———_ 8

ID Plug

MLO-006543

BA430/BA440 Enclosure Description

1-15

Figure 1-10:

Orange Light

TK70 Tape Drive

————

Green Light

Unload Button

Handle -

MLO-002292

i-16

BA430/BA440 Enclosure Maintenance

Figure 1-11:

TLZ-Series Tape Drive

gSt?oar?" T T

fl\[:‘n nnn flfl_fl

- Dnive Indicator
Tape Indicator

Bus Node

ID Plug . l

’/

MLO-005538

1.7 System Control Panel (SCP)
The

BA430/BA440

SCP

has

the

following

indicators

and

buttons

(Figure 1-12):

Over Temperature Warninig indicator

DC OK indicator

Halt button/indicator

Restart button/Run indicator

BA430/BA440 Enclosure Description

1-17

Figure 1-12:

SCP Indicators

Over Temperature

Warning indicator

e DG OK lndicator
% - Halt But
ton
1n——

Restart Button

MLO 006620

NOTE: The board behind the system'’s SCP contains switches that can be
set to off to prevent accidental activation of the Halt and Restart buttons.
See Figure 1-13.

The Over Temperature Warning indicator lights when the system’s internal

temperature is approaching a level that may cause system components to

overheat. If the internal temperature rises unacceptably, you will hear
a pulsing sound and the Over Temperature Warning indicator will flash.

The sound and visual marker are warning of a possible over temperature

condition, before the system automatically shuts down. This feature allows

time to take corrective action such as lowering the room temperature,

1-18

BA430/BA440 Enclosure Maintenance

removing airflow obstructions, or performing an orderly system shutdown
to prevent data loss.
The green DC OK indicator shows that the voltages are within the correct
operating range. If the DC OK indicator is not lit when the system power
is on, then a problem exists with the power supply.
Below the DC OK indicator is the two-position Halt button indicator. When
the Halt button is pressed in, the system halts and the halt LED lights.
Before you can enter console commands, you must press the button again
to return it to the out position and display the console mode prompt (>>>).
Now you can enter console commands. If you press the Halt button by
mistake, type C and press Return to continue.

CAUTION: Pressing the Halt button halts the system unconditionally, in
spite of the setting of the Break Enable|/Disable switch.
The Restart/Run button is a momentary contact switch located below the
Halt button/indicator. When pressed, the system returns to a run or reboot

condition. If you have specified a device as the boot device and if the Break
Enable/Disable switch is set to disable, the system will reboot the system
software.

1.7.1 Enclosure Modification
A system manager may request the following modifications to the SCP and
fan speed control.

Switches located on the SCP board can be used to disable the SCP button
functions. This could prevent accidental system shutdown if, for example,
you were to leave the access doors open when training new people on the
system. (See Section 1.7.2.)

When a system is located in an area where fan noise is more tolerable to
users, the speed of the fans can be increased. This action allows a potential
increase in system reliability, because the system components function more
efficiently in a cooler environment. (See Section 1.10.1.)

1.7.2 Halt and Restart Switch Disable
Four switches are located on the top rear of the system control panel.
These switches, when positioned off, disable the Halt and Restart button
functions on the SCP to protect the system from accidentally being halted or
restarted. Figure 1--13 shows the location of the switch pack and Table 1-2
lists the switch functions. The factory configuration is always set to halt
and restart enabled (switches on).

BA430/BA440 Enclosure Description

1-19

SCP Enable/Disable Switch Location

Switch Pack ——

Figure 1-13:

Factory Setting

JEEE o
MLO-004203

Table 1-2:
Switch

SCP Switches and Functions
State

Function
Unused

Halt Switch Enable

Haii Indicator Enable

Restart Switch Enable

1.8 Enclosure Card Cage
The order of modules is different for the BA430 and the BA440 enclosures.
The option modules are installed on the left side of the backplane. The
following sections list the module arrangement for the BA430 and BA440
enclosures.

1-20

BA430/BA440 Enclosure Maintenance

1.8.1 Components Specific to the DECsystem 5500 in a
BA430 Enclosure
Table 1-3 lists modules for the DECsystem 5500 in the BA430 enclosure
with their backplane slot locations. Figure 1-14 shows the DECsystem
5500 backplane.

Table 1-3:

DECsystem 5500 Module Order

Slot

Module

Interface module (M9715-AA)

KN220 I/O module (M7638)

KN220 CPU module (M7637)

2and 3

Console module (H3602-AC) covers the KN220 CPU module and one

Memory

4 through 6

Three optional memory slots or option slots

7 through 12

Option slots

memory module.

BA430/BA440 Enclosure Description

1-21

Figure 1-14:

BAA430 Enclosure Backplane (DECsystem 5500)

A
-

(I
o)

Power

Supply

Ol0
)

|
¥

]
12

Q bus

0 Q

Options

[e—
j

1.8.1.1

The

MLO-006621

H3602-AC CPU Cover Panel Used in the DECsystem 5500

H3602-AC

CPU

cover

(DECsystem 5500 only).

panel

used

the

BA430

enclosure

This panel covers backplane slots 2 and 3

(Figure 1-15). The H3602 cover panel connects by cable to the CPU module
behind it. The H3602 console module allows the CPU to interface to a serialline console device, and to the Ethernet (with the use of either a ThinWire

BNC connector or a standard Ethernet 15-pin transceiver connector).

See Table 1-7 for more information about the H3602.
1.8.1.2 H3605 1/O Panel Used in the DECsystem 5500

The H3605 1/0 panel is installed over slot 1 and contains two SCSI I/0
connectors (Figure 1-15).

1-22

BA430/BA440 Enclosure Maintenance

Figure 1-15:

H3602-AC CPU Cover and H3605 /O Panel,

Used in

DECsystem 5500

110 Panel

SCSl /J

In/Qut

CPU Cover Panel

Switch

— LED Display

Function {2

> QOperation Switch

'“E’,i

| Moditied

Standard

| _ Ethernet

Connector Switch

Ethernet —
=34l #

| ThinWire Ethernet

Connector

Ccsole Jack

Cannector

MLO-006622

BA430/BA440 Enclosure Description

1-23

1.8.1.3 M9715 Backplane Interface Module

The M9715-AA interface module is located on the extreme right, next to the
power supply (backplane slot 0). The M9715 Module provides terminator
power for both the DSSI and SCSI busses. Slot 0 is a dedicated dual
C/D backplane slot on the Q22-bus (J24). The M9715 interface module is
covered by a bulkhead panel that is required to maintain electromagnetic
shielding.

1.8.2 Components Specific to VAX 4000 Model 200 System
in a BA430 Enclosure
Table 14 lists modules in the VAX 4000 system in a BA430 enclosure with
their backplane slot locations. Figure 1-16 shows the VAX/VAXserver 4000
Model 200 backplane.

Table 1-4:

VAX 4000 Model 200 (BA430) Module Order

Slot

Module

Interface module (M9715 AA)

]

KAG60 CPU module (M7626)

Memory

1 and 2

Console module (H:3602-AA) cavers the CPU module and one memory
module slots.

3 through &

Three optional memory slots or option slots

6 through 12

Option slots

1-24

BA430/BA440 Enclosure Maintenance

Figure 1-16:

i
i

:
md

b
fE

Il 1B

HiE

Power

Supply

R
SR
A

i : e ‘,
il

Wk
:

)

illl:
|

]

BAA430 Enclosure Backplane (VAX 4000 Model 200 System)

‘-

i
i

]

(

1110

Q-bus

Options

I, /TR

Memory

€

Q-Bus
Options
MLO-006523

1.8.2.1 H3602-AA CPU Cover Panel Used in VAX 4000 Model 200 (BA430
Only)

The H3602-AA CPU cover panel (Figure 1-15) is used on the BA430
enclosure for the VAX 4000 Model 200 system. This panel covers backplane
slots 1 and 2. The H3602 cover panel connects by cable to the CPU module
behind it. The H3602 console module allows the CPU to interface to a serialline console device, and to the Ethernet (with the use of either a ThinWire
BNC connector or a standard Ethernet 15-pin transceiver connector).

See Table 1-7 for more information about the H3602.
1.8.2.2 M9715 Backplane Intertace Module

BA430/BA440 Enclosure Description

1-25

1.8.3 Components Specific to VAX/VAXserver 4000 Models
300, 500, and 600 in a BA440 Enclosure
Table 1-5 lists modules in the BA440 enclosure with their backplane slot
locations. Figure 1-17 shows the BA440 backplane.

Table 1-5:

BA440 Module Order

Slot

Module

1 through 4

Memory modules

CPU module

1 through 5

Console module (H3604) covers the CPU module and four memory
module slots.

6 through 12

1-26

Option slots

BA430/BA440 Enclosure Maintenance

Figure 1-17:

BAJ440 Enclosure Backplane
Vterm Module

Connector

Mass Storage
Connectors

Module

> Power Supply

Connectors

1211109
8 76

| 43
2 1

Q-bus

Memory

\*W“‘flr’"*—“/ 2
Option

———”\

kflr"} —

Power

Fan Connector

Board

H3604
MLO-007695

1.8.3.1 H3604 Console Modute (Used in BA440 Enclosure)
The H3604 console module is a multi-function module that covers the CPU

and four memory locations. The four memory modules occupy the first four
slots. The CPU occupies the fifth slot.

The H3604 console module allows the CPU to interface to a serial-line
console device, devices on DSSI bus 1, and to the Ethernet (with the use of
either a ThinWire BNC connector or a standard Ethernet 15-pin transceiver
connector). Figure 1-18 shows the front of the H3604 console module.

BA430/BA440 Enclosure Description

1-27

Figure 1-18:

H3604 Console Module (Front)

=- Quarter Tum

Captive Screw

Power Up

- —girmomer

Mode Switch

— Console Jack

Baud Rate
Select Switch

f&‘

LED Display -~
DSSI

Connectors

(External Bus,

Bus 1)

. I
I 1o
I

- Break Enable/
Disable Switch

l' 2

lfi Ethernet

4
L

&
m

Bus Node
1D Plugs

Connector

Switch

Standard
Ethernet
Connector

ThinWire

Ethernet
Connector

TM~ Quarter Turn
Captive Screw
MLO-006350

Figure 1-19 shows the rear view of the H3604 console module and the
location of the time of year (TOY) clock battery pack, fuses, and power
connector.

1-28

BA430/BA440 Enclosure Maintenance

Figure 1-19: H3604 Console Module (Rear)
—— Battery Backup Unit

ko e

J1 = TOY Clock Battery
J5 = H3604 Power
J6 = CPU Interface
W2 = Remote Boot Enable
W4 = Not Used

F1 = ThinWire Ethernet Power, 0.5 A

PN = 12-09159-00
F2 = -12V Power, 0.062 A
PN = 90-09122-00
F3 = DSS! Terminator Power, 20 A
PN = 12-10928-06
F4 = Standard Ethernet Power, 1.6 A
PN = 12-10929-08

MLO-006351

BA430/BA440 Enclosure Description

1-29

Table 1-6 lists the fuses, part numbers and symptoms of problems that
may occur.

Table 1-6:

H3604 Console Module Fuses

Fuse

Part Number

Symptom

F1(+12V, 172 A)

12-09158-00

ThinWire Ethernet LED on H3604 is not lit.
Ethernet external loop back test 5F fails if the
Ethernet connector switch is set to ThinWire.

F2(-12V, 1/16 A)

900912200

No console display

F3(+b V, 2 A)

12-10929--06

L.EDs on both DSSI terminators (Bus 1) on the H3604
console module are not lit; the DSSI terminator for
Bus 0 1s ht.

SHOW DSSI or SHOW DEVICE commands show
DSSI bus 0, but console displays message indicating
that DSS1 bus 1 terminators arc missing or not
functioning.

DSSI SHAC (Bus 1) test 5C fails (countdown number
11

F4 (+12V, 1.5 A)

12-10929-08

The LED on the loop back connector (12-22196-02) for
standard Ethernet is not lit.

External loop back test 5F for the standard Ethernet
passes, however.

1-30

BA430/BA440 Enclosure Maintenance

Table 1-7 List the various controls, ports, and indicators that are available
on the H3604 and H3602 console modules.

Table 1-7:

Controls, Ports, and Indicators Available on the H3604
and H3602 Console Modules

Controls, Ports and Indicators

Console

40-pin CPU module interface connector

Ha3602

100-pin CPU module interface connector

H3604

Baud Rate Select switch

H3604

H3602

Language Inquiry switch

H3604

H3602

Hexadecimal display

H3604

H3602

Break/Enable Disable switch

H3604

H3602

Console serial MMJ connector

H3604

H3602

DSSI terminator (fuse protected)

H3604

TOY clock oscillator (25.6 KHz)

H3604

Two external (50-pin) DSSI connectors (X = infout, ¥ =

H3604

H3602

infout)

Two DSSI bus node 1D plugs

H3604

Ethernet Port Features
Standard Ethernet connector (15-pin)

H3604

H3602

ThinWire Ethernet BNC connector

H3604

H3602

Standard/ThinWire select switch with indicator LEDs

H3604

H3602

Ethernet serial transceiver chip (SIA)

H3604

H3602

Fihernet selection LEDs (2)

H3604

H3602

-9 V DC/DC converter

H3604

H3602

Fused current surge protection

H3604

BA430/BA440 Enclosure Description

1-31

1.9 Power Supply (H7874)
Both the BA430 and BA440 enclosures contain a modular H7874 power
supply. Switch and indicator functions are shown in Figure 1-20 and
defined in Table 1-8. The power supply plugs into the backplane through
two connectors.

The H7874 power supply delivers the following maximum current.
22 amperes at +12.1 Vdec
60 amperes at +5 Vdc
15 amperes at +3.3 Vde
3 amperes at -12.1 Vdec
Figure 1—-20:

Power Supply Indicators

-— Power Switch
——— AG Present Indicator
[s]

—— DC OK Indicator

10
o]

———— Fan Failure

Indicator

°>

° g{

Temperature
Over Temperat
Over

Condition Indicator

NS
lfigmmuwoz} Power Bus
£

Connectors

Power Cable

Connector

MLO-004040

The combined maximum loads on the +12.1 Vde, -12.1 Vde¢, +3.3 Vdc, and
+5.1 Vdc must not exceed a total of 584 watts of power. The total output

1-32

BA430/BA440 Enclosure Maintenance

power from the +3.3 Vdc and +5.1 Vde must not exceed 330 watts. See the
configuration worksheets in Figure 1-27 and Figure 1-28 for details .
The H7874 power supply has an AC Power switch and three power bus
connectors for daisy-chained operation when used in a multi-enclosure
configuration (Figure 1-21).

1.9.1 H7874 Power Supply Switches and Controls
The following table describes in detail the switches and controls of the
H7874 power supply:

Table 1-8:

H7874 Power Supply Switches, Controls,

and Indicators
Control/Indicator

Function

AC Present indicator (orange)

Lights when the power switch is set to on (1), and the
AC voltage is present at the input of the power supply.

Power switch

The power switch is used to turn system power on and
off. The off position is indicated by a 0; the on position
is indicated by a 1.

The power switch also functions es the system
circuit breaker. In the event of a power surge, the
breaker will trip causing the power switch to return
to the off position (0). Turning on the system resets the
circuit breaker. If the circuit breaker trips, wait one
minute before turning the system back on.

DC OK indicator {green)

When the DC OK indicator is lit, the voltages are
within the correct operating range. An un-lit DC OK
indicator shows a problem with the power supply.

Fan Failure indicator (amber)

The Fan Failure indicator lights if either of the two
cooling fans stops working. The power supply will
automatically shut down the system as a precautionary
measure when a fan failure is detected.

Over Temperature indicator (amber)

The Over Temperature indicator lights if the system
has shut down due to an over temperature condition.

BA430/BA440 Enclosure Description

1-33

Table 1-8 (Cont.):
and Indicators

H7874 Power Supply Switches, Controls,

ControlIndicator

Function

Power bus connectors

Three power bus connectors allow you to configure a
power bus for expanded systems. The power bus allows
you to turn power on and off for the expanded system
through one power supply designated as the main
expanded power supply: this way, one power switch
can control power for an expanded system. Figure 1-21
illustrates a possible power bus configuration.

NOTE: Dual-host systems should not be
configured with a power bus. Inadvertently
shutting off a host system and bringing down
the cluster defeats the added reliability of a
dual-host system.

The Main Out connector sends the power control bus
signal to the expander. One end of a power bus cable

is connected here; the other end is connected to the Sl
(secondary in) connector of the expander power supply.

The Secondary In connector receives the power bus
control signal from the main power supply. In a power
bus with more than one expander, the power bus signal
is passed along using the secondary in and secondary
out connectors,

The Secondary Qut connector sends the signal down
the power bus for configurations of more than one
expander. Figure 1-21 shows a sample of the power
bus daisy-chain configuration.

Te add more secondary enclosures to the Power Control Bus (PCB), simply
connect a PCB cable from the SO (Secondary Out) connector on the last unit
currently in the chain to the SI (Secondary In) connector on the enclosure
to be added. Up to four secondary enclosures may be daisy-chained from
a main enclosure in this way. More than four secondary enclosures may
be controlled by the PCB by connecting the MO (Main Out) connector on
the fourth secondary enclosure to the SI connector on the fifth secondary
enclosure. Enclosures can be cascaded in this manner to add an unlimited

1-34

BA430/BA440 Enclosure Maintenance

number of secondary enclosures to a system. No termination is needed for
the PCB.

Figure 1-21:

Sample Power Bus Configuration

System

Expander 1

[..1|MO
i

1Sl

Expander 2

1} n’:l

1|50

|7 I 1]

d O

—1|MO

CO SO

q O

]

7. 1|S0
MLO-004041

NOTE: The H7874 power supply automatically selects either 120 or 240 Vac
when power is turned on.

1.9.2 H7874 Shutdown Mode
The power supply enters and completes a shutdown sequence whenever
the BPOK H signal is negated. When BPOK H is asserted high on the
Q22-bus, the power system will allow normal system operation. The
following conditions negate BPOK H:
*

Temperature sensor triggered

An over-current condition

An over-voltage condition

Loss of ac input

Fan failure

BA430/BA440 Enclosure Description

1-35

Input voltage greater than 132 Vrms or less than 88 Vrms (if in 120
Vrms mode) or input voltage greater than 264 Vrms or less than 176
Vrms (if in 240 Vrms mode)

1.10 Fan Tray
The BA430/BA440 enclosure has two 15-cm (6-in) dc fans located in a tray
(Figure 1-22 and Figure 1-23) beneath the card cage area. Airis pulledin
through the top of the enclosure and forced through the ISEs, power supply,
and module options, and then expelled through the vents at the bottom,
sides, and rear of the enclosure. A temperature sensor in the power supply
adjusts the volume of air by varying the fan’s speed based on the system’s
temperature. The input voltage to the fans varies between 10 Vdc and 20
Vdc, depending on the internal temperature of the power supply.
Figure 1-22:

BAA430/BA440 Fan Tray Location

fifif;
Fan Tray
MLO-005357

1-36

BA430/BA440 Enclosure Maintenance

Figure 1-23: Fan Tray Extended

Captive Screws
MLO-004220

1.10.1 Fan Speed Control Disable
Some system managers request that the enclosure fans run at the
maximum rate at all times, to take advantage of a potential increase in
system reliability. The system environment must not exceed the limits
described in the Site Preparation manual. Figure 1-24 shows the location
of the fan speed control (FSC) jumper.

1.11 Backplanes
The BA430/BA440 enclosures have different backplanes. Backplane
54-20181-01 is used in the BA430 and backplane 54-19354-01 is used in
the BA440 enclosure.

The BA430/BA440 enclosure supports 35 equivalent ac loads and 20 dc
loads from all the modules installed in the backplane. An ac load is the

amount of capacitance a module presents to a bus signal line. One ac load

BA430/BA440 Enclosure Description

1-37

Figure 1-24:

FSC Jumper Location

Factory
Setting

FCS
Disabled

MLO-004204

equals 9.35 picofarads (pf). A dc load is the amount of dc leakage current
a module presents to a bus signal line. One dc load is approximately 105
microamperes (pA). The backplane presents 4 ac loads to the Q22-bus.
The Q-bus, for both BA430 and BA440 backplanes, can be extended by
using an expander.

1-38

BA430/BA440 Enclosure Maintenance

Connectors are provided for each of the following:
*

Fan tray

System control panel (SCP)

Four mass storage compartments

Power supply

Vterm regulator module (BA440 only)

Power Board for H3604 (BA440 only)

CPU and memory slots

Q-bus slots

M9715-AA Interface Module (BA430 only)

Internal SCSI cable connector

Internal DSSI cable connector

1.11.1 BA430 Backplane
This 40.7-cm x 52.1-cm (16.0-in x 21.0-in) 6-layer backplane, used in the
BA430 enclosure, has 12 Q-CD backplane slots. The BA430 backplane,
shown in Figure 1-25, contains connectors for DSSI and SCSI buses. Two
main backplane power connectors near slot 1 interface with the power
supply. Backplane connectors distribute power to module slots 1 through
12, to two 6-inch fans located at the bottom of the enclosure, to the System
Control Panel (SCP), and to the four mass storage cavities.

BA430/BA440 Enclosure Description

1-39

BA430 Backplane
nternal

internal

DSSI Cable

SCSi Cable
Connector

Connector

Mass Storage <
Connectors

{

Module

Connector

m 'T

E
I

Power Supply

" Connectors

Connectors

-‘ e

Figure 1-25:

//‘
Fan Connector

MLO-006352

1.11.2 BA440 Backplane

The BA440 backplane, shown in Figure 1-26, is a 12-slot, quad-height
backplane. The backplaneis a 52.5-cm x 40.7-cm (21-in x 16-in) assembly.
The space between each backplane slot varies. The backplane’s printed
circuit boardis an 8-layer, 2-sided etch board. The BA440 backplane, shown

in Figure 1-26, contains connectors for DSSI and SCSI buses. Two main
backplane power connectors near slot 1 interface with the power supply.
Backplane connectors distribute power to module slots 1 through 12, to two

6-inch fans located at the bottom of the enclosure, to the System Control
Panel! (SCP), and to the four mass storage cavities.

1-40

BA430,BA440 Enclosure Maintenance

BA440 Backplane

Figure 1-26:

internal SCSI

Internal DSSI

Connector

Vterm Module
s SCP Connector

Mass Storage
Connectors

m%UmU

Connectors
e
‘,/

E) Connectors

1
l
‘s

Connectors j :

Memory

Power Supply

Module

) \""u"@/ Fan Connector

Q-Bus Module
Connectors

Power Board
Connector
CPU
MLO-006353

1.12 Configuration Guidelines
Before changing the configuration of the BA430/BA440 enclosure, you must

consider the following factors:

Module order in the backplane

Module configuration

Mass storage device configuration

BA430/BA440 Enclosure Description

1--41

When adding a device to a system, you must know the capacity of the
system enclosure in these areas:
Backplane slots available
Power supply capacity

Mass storage slots available
AC and DC loading

Mass storage nodes available

1.12.1 Module Order and Configuration
Module ordi r in the backplane is specific to the CPU. Refer to the applicable
CPU maintenance manual for the preferred module order of a given system.
For information on how to configure modules, refer to Micro-systems

Options, which contains a listing of all supported options along with the
following information for each module and device:
Ordering information
Operating System Support
Diagnostic support

Option description

CSR addresses and interrupt vectors
LEDs
Loopback connectors

Self-tests

FRUs (if applicable)

Related documentation

1.12.2 Configuration Worksheets
Use Figure 1-27 or Figure 1-28 to be sure your configuration does not
exceed system limits for expansion space, power, and bus loads. If you use
standard Digital modules, you should not exceed the bus load limits.
When changing a configuration, choose the worksheet that applies to your
system.
1.

List all the devices already installed in the system.

1-42

BA430/BA440 Enclosure Maintenance

2. List all the devices you plan to install in the system.
3.

Fill in the
Table 1-9.

information for each device, using the data listed in

Add the columns. Make sure the totals are within the limits for the
enclosure.

NOTE: Check the CPU documentation to determine which options are
supported for your system.

@
5

BA430/BA440 Enclosure Description

1-43

Figure 1-27:

Slot

BAA430 Configuration Worksheet

Module

Current (Amps)

Power

+5 Vde p12 Vde p3.3 Vdgi2 vde | (Watts)

|Bus lLoad

AC | DC

0
Chu 1

Mem 2
Mem 3

Mem 4

Mem 5

Q/CD 6
Qch 7
acH s
Q/CD Y

Q/CD 10

Q/CH 1

Qcp 12

Mass Storage:
fape
1

2
3

Total these columns

Must not exceed

B00A

|220A

[150A | 30A

5840 W

Nate Total output power from +3 3 Vdc and +5 Vdc must not exceed 330 W
MLO-005711

NOTE: +12 Vdc is 22.0 A, only if +3.3 Vdc is not used. Otherwise the value
s 18.0 A.

1-44

BAA430/BA440 Enclosure Maintenance

Figure 1-28: BA440 Configuration Worksheet
Siot

Module

Current {Amps)

Ffower

30A

584 O W

+5 Vde |+12 Vdc 1+3.3 Vdc -12 Vdc

(Watts)

|Bus Load

AC | DC

MEM 1
MEM
2
3
MiM

4
MEM
cPuU®
Q-bus 1

J-bus 2
) bus 3

Q-bus 4
Q bus b
Q-bus 6

Q bus 7

Mass Storage:
1

Total these columns

Must not axceed

600A | 220A

150A

A Total output power trom +3 3 Vdc and +5 Vdc must not exceed 330 watts

B. Power requirements in this ine include CPU module and H3604 console module
ML O-005361

NOTE: +12 Vdc is 22.0 A, only if +3.3 Vdc is not used. Otherwise the value
is 18.0 A.

BA430/BA440 Enclosure Description

1-45

1.13 Power Requirements
Table 1-9 lists the power requirements for all options and modules that
can be installed in the BA430/BA440 enclosures.

Table 1-9:

Power Requirements
Current (Amps)

Power

(Max)

Bus Loads

(Max)

Option

Module

+H5V

+12V

Watts

AAV11-SA/SF

A1009-PA

2.10

0.0

10.60

2.5

0.5

ADQ32-SA/SF A030-PA

4 .45

0.0

22.26

2.5

ADVI11-SA/SF A1008-PA

2.00

0.0

10.0

2.3

0.5

AXV11-SA/SF

2.00

0.0

10.0

1.2

0.3

CXA16 AA/AF M3118-YA

1.60

0.20

10.40

3.0

0.5

CXB16-AA/AF M3118-YR

2.00

0.0

10.00

3.0

0.5

CXY08 AA/AF M3l119-YA

1.64

0.40

12.94

3.0

0.5

DESQA -SA/SF M3127-PA

2.40

0.22

14.64

3.3

0.5

DFAO1-AA/AF M3121-00

1.97

0.04

10.30

3.0

1.0

DIV32-SA/SF

M7571-00

5.5

0.0

35.43

1.0

DPVI11-SA/SF

M8020-YA

1.20

0.30

9.60

1.0

DRQ3B-SA/SF M76568-PA

4.50

0.0

22.50

2.0

0.5

DRV 1J-SA/SF M&8049-PA

1.80

0.0

9.00

2.0

1.0

DRVIW-SA'SF M7651-PA

1.80

0.0

9.00

2.0

1.0

DSV11-SA/SF

5.43

0.69

3543

3.9

1.0

0.0

2.3

276

N/A

0.0

2.3

27.0

N/A

2.1

0.0

10.5

N/A

A026-PA

M3108-PA

EF51R-AA/AF
EF52R--AA/AF

EF53-AA/AF
H3602

0.30

0.50

6.50

0.0

H3604!

1.70

0.50

14.50

0.0

{BQO1-SA/SF

Mi3125-PA

5.00

0.30

28.60

4.6

1.0

IEQ11 SA/SF

M8634-PA

3.50

0.0

17.50

2.0

1.0

TAlso include -12 Vde @ 0.25 A, 3 W.

1-46

BA430/BA440 Enclosure Maintenance

Table 1-9 (Cont.):

Power Requirements
Current (Amps)

Power

(Max)

Bus Loads

+5V

+12V

Watts

KA660-AA/BAZM7626-AA/BA

4.8

0.55

30.60

4.0

1.0

KA670-AA/BA® LA000-AA/BA

9.2

0.5

52.0

4.0

1.0

KA680-AA

1.4002-BA

4.8

1.6

53.8

4.0

1.0

KAG90-AA

14002-AA

9.2

0.5

52.0

4.0

1.0

KDASO-SE/SG M7164-00

6.93

0.0

34 .65

3.0

0.5

——

M7165-00

6.57

0.03

33.21

0.0

KFQSA-SE/SG M7769-00

5.50

0.0

27.50

4.4

0.5

KLESI-SA/SF M7740-PA

4.00

0.0

20.00

0.5

1.0

KN220-AA

13.75

0.55

75.5

3.5

1.0

KRQ50-SA/SF M7552-PA

2.70

0.0

13.50

2.7

1.0

KWV11-SA/SK M4002-PA

2.20

0.01

11.16

1.0

0.3

KXJ11-SA/8F

M7616-00

6.0

46.8

1.0

KZQSA-SA/SF M5976-SA

5.5

0.0

27.5

4.4

0.5

LPVI1I-SA

M&086-YA

2.80

0.0

14.00

1.8

0.5

M9404-PA

0.0

M9405-PA

0.0

MRV11-D

M8578-00

1.60°

0.0

8.00

3.0

0.5

MS670-BA

14001-BA

3.25

0.0

16.25

0.0

MS670-CA

14001-CA

3.25

0.0

16.25

0.0

MS690-BA

1.4004-BA

5.3

0.0

26.5

0.0

MS690-CA

14004-CA

5.3

0.0

26.5

0.0

MS690-DA

14004-DA

6.4

0.0

32.0

0.0

MS650-BA

M7622-AA

3.5

0.0

1756

0.0

(Max)

Option

Module

(CPUM7637-AA
(7OIM7638--AA

? The KA660-AA/BA power requirements include power for the H3602 CPU cover panel.
YAlso include 3.3 Vdc @ 15 A, 0.9 W and -12V(- @ 3.0 A 0.5 W.
*Walue is for the unpopulated module only.

BA430/BA440 Enclosure Description

1-47

Table 1-9 (Cont.):

Power Requirements
Current (Amps)

Power

(Max)

Bus Loads

(Max)

Option

NModule

+5V

+12V

Watts

MS650-BRB

M7622 BA

3.1

0.0

155

0.0

MS650 BC

M7622 CA

0.0

14.0

0.0

MS220-AA

M7639-AA

6.55

0.0

31.0

0.0

MS220-BA

M7639-BA

6.55

0.0

31.0

0.0

RF31E-AAAF

1.2

2.21

32.52

N/A

REF31F-AA/AF

1.2

2.21

32.52

N/A

0.76

0.96

16.0

N/A

1.52

1.92

32.0

N/A

RF35E -ANAF

0.76

0.96

16.0

N/A

REi52 AA/AKF

1.52

1.92

320

N/A

RE71E AA/AF

1.25

1.64

25.93

N/A

1.20

1.75

27.0

N/A

1.2

1.76

27.0

N/A

RF3IT AA/AF
RF312 AA/AF

RF72E-AAAF
RF73E-AA/AF

RZ56K -AA/AF

1.36

2.1

32.0

N/A

RZHTE --AA/AF

1.36

2.1

32.0

N/A

RZG8E -AA/AF

1.0

2.2

32.97

N/A

THE5E JA/JE

1.5

2.4

36.30

N/A

TK5H0E -AA/AF

2.40

36.30

N/A

TK70K -AA/AF

2.40

36.30

N/A

TLZ04 JA/IR

1.5

2.4

36.3

N/A

TQK5H0-SA/SF

M7546-00

0.0

14.5

2.8

0.5

TQK70-SA/SF

M7559-00

3.50

0.0

17.50

4.3

0.5

TSV05 -SA/SEF

M7530-PA

6.50

0.0

32.50

1.5

1.0

VCBOZ-A

M7615 00

0.10

242

3.5

1.0

VCBoO2 B

M7168 00

B.85

0.47

49.89

3.5

1.0

M7169-00

1-48

BA430/BA440 Enclosure Maintenance

Table 1-9 (Cont.):

Power Requirements
Current (Amps)

Power

(Max)

Bus Loads

(Max)

Option

Module

+H5V

+12V

Watts

VCRo2-C

(2) M7168-00

12.0

0.47

65.64

3.5

1.0

M7169--00

Each mass storage device receives power through an 80-pin connector
located on the backplane. There is an interface module at the rear of the

ISEs that plugs in directly to the backplane connector.

BA430/BA440 Enclosure Description

1-49

Chapter 2

Installation
This chapter contains the procedure for installing the B3A430/BA440
pedestal enclosure.

2.1 Site Preparation
The following sections describe the various site needs for installing the
BA430/BA440 pedestal enclosure.

2.1.1 BA430/BA440 Physical Dimensions
Figure 2-1 shows the dimensions of the BA430/BA440 enclosure.
You must leave at least 61 cm (24 in) of clearance in front of the system to
open the doors and access the system controls. You must also leave at least
5 cm (2 in) of clearance at the sides and rear for airflow. Because the base

of the enclosure is 5 em (2 in) wider than the cabinet in front and rear, you
can place the rear of the system against a wall or table, and the system
has enough space around it for adequate airflow.

CAUTION: Due to the weight of the equipment, Digital recommends that at
least two people move system and terminal boxes.

Installation

2-1

Figure 2-1: BA430/BA440 Enclosure Dimensions

45 cm

(17.8.1m)

TTT—— 53 cmin) \\.\\fi/ — SJ4
(21

WEIGHT 49 9 kg to 68 kg

1b to 150 Ib)
(110

MLO-004 130

2.1.2 Additional Equipment

Make sure there is enough space for terminals and other peripheral

equipment.

When you plan the cable routing for multi-terminal systems, consider
factors such as safety, convenience, future expansion, and cost. Cabling
should be in place and labeled before you install the system.
2.1.3 Static Electricity

Static electricity can cause system failure and loss of data. To minimize
static build up. follow these guidelines:

Maintain relative humidity of at least 40%.

Place the system away from busy office corridors.

2-2

BA43(/BA440 Enclosure Maintenance

Avoid using carpeting in the computer area, if possible. If carpeting is
to be installed, recommend antistatic carpeting. If carpeting is already
in place, place an antistatic mat under the system.

Provide a separately-fed electrical circuit for each enclosure ordered

(whether an expander or system).

Provide as many electrical outlets as required for each additional device,
including any tabletop device and console terminal.

2.1.4 Acoustics
The BA430/BA440 enclosure is designed for use in offices and other general
working areas. Data is measured in accordance with ANSI $512.10-1985
(American National Standards Institute) and ISO/DIS 7779 (International
Standards Organization).

LNPE (B) is the noise power emission level (A-weighted sound power
level) measured in bels per 1 pw (reference 1 picowatt). LNPE for the
BA430/BA440 enclosure is 6.6 Dels.

LPAis the sound pressure measured in decibels at 1.0 m from the front
edge of the unit and 1.5 m above the floor. LPA for the BA430/BA440
enclosure is 61 decibels.

NOTE: The actual noise level is dependent on the type and number of storage
devices and may vary according to your configuration.

2.1.5 Heat Dissipation
Heat dissipation is measured in British thermal units (Btu).
heat dissipation in the BA430/BA440 enclosure is 2980 Btu/h.

Maximum

2.1.6 Temperature and Humidity Values
Table 2-1 lists temperature and relative humidity values for the BA430
/BA440 enclosure.,

Table 2-1:
Parameter

Temperature!

Temperature and Relative Humidity Values
Operating

Nonoperating

10°C to 40°C

~40°C 10 66°C

50°F to 104°F

-40°F to 151°F

1For operation above sea level, decrease the operation temperature by 1.8°C per 1000 m (or
1 F per 1000 ft).

Instaliation

2-3

Table 2-1 (Cont.):

Temperature and Relative Humidity Values

Parameter

Temperature rate of change

Operating

Nonoperating

11°C per hour maximum

N/A

20°F per hour maximum

Relative humidity

20% to 80% (non-condensing)

10% Lo 90% (non-condensing)

Maximum altitude

2438 m (8000 ft)

4870 m (16,000 ft)

2.1.7 Electrical Requirements

The power source should be adequate to handle the original system and
allow for system expansion. Digital recommends a dedicated circuit from
the power source to each system. Additional power equipment may be
required to avoid power disturbances.

Table 2—2 lists the electrical requirements for systems in a BA430/BA440
enclosure. Table 2-3 lists the power cables required.

Table 2-2:

BA430/BA440 Enclosure Electrical Requirements

Nominal AC Voltage—>

101 Vac

120 Vac

220 Vac

240 Vac

Voltage range

90 to 110
Vac

Vac

176 Lo 242

186 Lo 264 Vac

Power source phase

Single

Nominal frequency

50t060Hz

50to60Hz

501060 Hz

50 to 60 Hz

Frequency range

47Tt063Hz

47tw63Hz

47w63Hz

47t0 63 Hz

Maximum steady state current

119 A

11.2A

6.1A

58 A

126 A

106 A

6.2 A

6.0 A

Maximum inrush current

100 A

83 A

Maximum power consumption

850 W

104 to 128

at nominal voltage

Startup current (30 seconds) at
nominal voltage

Table 2-3:

Power Cables

Countries

BN20A--2E

United States, Japan, and Canada (17-00083-43 (120 V)

2-4

BAA430/BA440 Enclosure Maintenance

Table 2-3 (Cont.):

Power Cables

Countries

BN20B 2K

United States, Japan, and Canada (17-00083-44 (240 V)

BN22C- 2k

Australia and New Zealand

BN220D)- 2K

Central Europe, Austma, Belgium, Finland, France, Germany,
Netherlands, Norway, Portugal, Spain, and Sweden

BN22E--2E

United Kingdom and Ireland

BN22F-2K

Switzerland

BN22H-2E

Denmark

BN22J-2E

ltaly

BN22K-2K

India

BN221, 2K

lsrael

2.2 Unpacking the Shipment
The shipment may include several cartons:

One contains the system unit.

One contains cables for connecting additional devices to the system.

Several contain components of the console terminal.

Another, marked "Software”, contains software documentation, system
software, diagnostic software, and a software license.

NOTE: Save all packing materials if vou plan to reship the svstem.
Depending on the order, the
terminals, printers, or modems.

shipment

may

also

include

additional

When delivered, the system is packed in a cardboard container attached to
a shipping skid or pallet.
Before unpacking the equipment, check for external shipping damage.

Report any damage to the customer’s sales representative and contact the
customer’s delivery agent. Keep all packing material and receipts when
filing a damage claim.
When you unpack the cartons, check the contents against the shipping list
to ensure the order is complete.

Installation

2-5

Unpack the system according to the instructions on the system shipping
carton.

After unpacking the system, move it by rolling it sideways or by sliding or
walking it backward/forward while gripping the hand holds (Figure 2-2).

WARNING: The system weighs between 50 kg (110 lb) and 68 kg (150 lb),
depending on the options installed. Use two people to move the system.
Figure 2-2:

Sliding the System into Place
Hand Holds

Slides Front

to Back

Rolis Left to Right
MLO-004012

During installation, leave a few inches behind the system for routing cables
underneath the system unit. Once installation is complete, you can place
the system base against a wall.

2-6

BA430/BA440 Enclosure Maintenance

2.3 Connecting the Console Terminal
Install the console terminal to the BA430 as shown in Figure 2-3. Install
the console terminal to the BA440 as shown in Figure 2-4.
Follow the instructions in the system Installation manual.

installation

2-7

Figure 2-3:

Connecting the Console Terminal to the BA430

— Terminal

Cable

MLO-006662

2-8

BA430/BA440 Enclosure Maintenance

Figure 2-4: Connecting the Console Terminal to the BA440

——-Terminal
Cable

MLO-004014

Installation

2-9

2.4 Completing the Installation
Run the factory-loaded system software with only the system connected
before completing the installation by connecting other devices.
Make cable connections directly to the module handles/covers. Begin with
the module on the far right and continue toward the left.
Each module handle has a label at the top that contains the option number
and module number. Table 2-4 lists the labels for modules requiring
connections. Use the table to identify the modules as you connect additional
devices to the system.

Table 2-4:
Module
Number

Module Identification Labels
tion
umber

Enclosure
Used

Functional
Description

H3602-AA

BA430

KA660 CPU cover panel

R —

H3602-AC

BA430

KN220 CPU cover panel

H3604-AA

BA440

KA670 CPU console module

M7626-AA

KA660-AA

BA430

VAX 4000 Model 200 CPU module

M17626-BA

KA660-BA

BA430

VAXserver 4000 Model 200 CPU

M5976-SA

KZQSA-SA

All

RDAT/SCSI Adapter

1A000-AA

KA670-AA

BA440

VAX 4000 Model 300 Timeshare

14000-BA

KA670-BA

BA440

VAXserver 4000 Model 300 CPU

14001-BA

MS670-BA

BA440

VAX 4000 Model 300 memory,

14001--CA

MS670--CA

BA440

14002-BA

KAGSO-AA

BA440

VAX 4000 Model 500 CPU Module

14002-AA

KAG90-AA

BA440

VAX 4000 Model 600 CPU Module

14004--BA

MS690-BA

BA440

VAX 4000 Model 500 and 600

[4004-CA

MSE90-CA

BA440

VAX 4000 Mode) 500 and 600

[4004--DA

MS690-DA

BA440

VAX 4000 Model 500 and 600

2-10

BA430/BA440 Enclosure Maintenance

module

CPU

32 MB

VAX 4000 Model 300 memory,

64 MB

memory, 32 MB

memory, 64 MB

memory, 128 MB

Table 2-4 (Cont.):

Module ldentification Labels

Module

Option

Enclosure
Used

Description

M8578-00

MRVI11-D

All

Programmable read-only memory

M3127 -PA

DESQA-SA

All

Ethernet adapter

Mi31I8-YA

CXAl6 AA

All

Mi3118-YB

CXB16-AA

All

16-line asynchronous serial interface
(RS-—422-A noise immune)

Mi3119-YA

CXY08-AA

All

8-line asynchronous serial interface
{full modem support)

Mi108-PA

DSV11-8A

All

2-line synchronous serial interface
(full modem support)

Mi3121-00

DFAOL-AA

All

2-line asynchronous serial interface
with integral modem

M7164-00,

KDASO-SE

All

SDI1 Mass Storage Adapter

M7559-00

TQK70-8A

All

TK70 tape drive controller

M7206-PA

TSV05-SA

All

TS05 tape drive controller (old)

M7530--PA

TSVO5-SA

All

TS05 tape drive controller (new)

M7740-PA

KLESI-5A

All

M7546-00

TQK50-SA

All

TK&0 tape drive controller

M75562-PA

KRQ50-SA

All

RRD4O/RRD50 CD-ROM controller

M7500-PA

KMVI1A-SA

All

RS232--C interface

M7622-AA

MSe650--BA

BA430

VAX

M7622-BA

MS650-BB

BA430

VAX 4000 Model 200 8 MB memory
module

M7637-AA

KN220--AA

BA430

DECsystem 5500 CPU module

M7638-AA

KN220-AA

BA430

DECsystem 5600 /O module

M7639--AA

MS220-AA

BA430

DECsystem 5500 32 MB
memory module

M7639- BA

MS220-BA

BA430

DECsystem 5500 64 MB

Number

Functional

16-line asynchronous senal interface

(RS8-423-A no modem support)

M7165-00

RV20 writc-once optical

TURE tape controller)

4000

Model

memory maodule

200

disk (or

memory module

installation

2-11

Table 24 (Cont.):

Module identification Labels

Module

Option

Enclosure
Used

Description

M7658-PA

DRQIB-SA

All

Real-time parallel interface

M7651 PA

DRVIW SA

ARl

Real-time parallel interface

M7769-00

KFQSA-SA

All

DSSI mass storage adapter

MB020-PA

DPV11-SA

All

Synchronous serial line interface

M8086-YA

LPV11-8A

All

Dual parallel printer interface

BA430

DSSI interface/terminator card

Number

M9715-AA

Functional

The following table lists the option cables.

Table 2-5:

Option Cables

Module Number

Option Number

Cable Type

Mi3127-PA

DESQA-SA

Ethernet cable

Mi118-YA

CXA16-AA

M3118-YR

CXB16-AA

BC16D, H3104 cable concentrator
(RS--422--A, noise immune)

M3119-YA

CXYO08-AA

BC19N--12(RS232 full modem support)

M3121--00

DFAO1-AA

Telephone line

MB020-YA

DPV11-SA

BC261.-01

M8086-YA

LPV11-8A

BC271,-30

M7164-00

KDA50--SE

BC26V

KMVIA-SA

RS232-C Interface

BC16D,

H3104

cable

concentrator

(RS-423--A, no modem support)

M7165-00

M7500--PA

2.4.1 Setting Controils on the System
The controls you must set to complete the installation vary, depending
on the CPU and type of disks in the enclosure. Generally, you must
set the baud rate of the console serial line to the same baud rate as the
console terminal, and be sure the fixed disk drives are ready and not write
protected.

2-12

BA430/BA440 Enclosure Maintenance

Refer to the system’s Operation manual for detailed instructions on setting
these controls for the particular system you are installing.

2.4.2 Connecting the Power Cable
Feed the power cable under the system from the rear and attach it to the
connector at the base of the power supply (Figure 2-5). Plug the other end
of the power cable into the wall outlet after all cabling has been installed.
Option cables are listed in Table 2-5.
Figure 2-5:

Connecting the Power Cable

Cover PLate

Feed Cable Under System

and Through Opening
MLO-004029

Installation

2-13

Chapter 3

BA430/BA440 FRU Removal and
Replacement
This chapter describes how to remove and replace the field-replaceable units
(FRUs) in the BA430/BA440 enclosure.

The following sections describe the removal procedure for each FRU. Unless
otherwise specified, you can install a FRU by reversing the steps in the
removal procedure.
System-specific FRU procedures vary slightly. ~ As a result, some
illustrations of procedures show an example of a FRU removal.
The
variations are noted in the text and in the title of the illustration.
NOTE: The illustrations in this chapter show the BA440 enclosure.
Duplicating the same basic illustrations for the BA430 enclosure is
unnecessary. The removal procedures are the same for both enclosures.
CAUTION:

Only qualified service personnel should remove or install FRUs.

Turn off the system before you remove or install FRUs.

Static electricity can damage integrated circuits. Always use a grounded
wrist strap 29-26246-00 and a grounded work surface when working
with the internal parts ofa computer system.

BA430/BA440 FRU Removal and Replacement

3-1

3.1 Field Replaceable Units (FRUs)
Table 3—1 lists the BA430/BA440 enclosure FRUs and their part numbers.

Table 3-1:

BA430/BAA440 FRUs

FRU

Part Number

Enclosure

Assembly, bulkhead H3602-AC

702677503

BA430, DECsystem 5500

Assembly, bulkhead H3602-AA

702577501

BA430, VAX 4000 Model 200

Assembly, console H3604

70--27400-01

BA440

Module, console H3604

702740201

BA440

Assembly, system control

7027044 -01

BA430/BA440

Backplane, BA430

54--20181-01

BA430

Backplane, BA440

19354 01

BA440

Battery pack (H3604)

1219245 -01

BA440

Battery pack (H3602)

12 -19245-01

BA430

Board, Vterm dual regulator

54-20404-01

BA440

Cable, H3604 data

17-02353--01

BA440

Cable, DSS1 bulkhead, 60-cond. internal

17-02502--01

BA430/BA440

Cable, DSSI external, 50-cond. external

170215203

BA430/BA440

Cable, SCSI (external, 2.5 L)

17-02659--03

BA430/BA440

Cable, SCSI (external, 6.0 1)

17-02659-02

BA430/BA440

Cable, SCSI 50-cond. bulkhead

17-02542-01

BA430/BA440

Cable, TQK5)/TQK70

17-01363-01

BA430/BA440

Cable, system control (SCP)

17-402493-01

BA430/BA440

Cable, power control (BA400 to BA40O)

17--02638--01

BA430/BA440

Cable, power control (BA400 10 BA200)

17-02637-01

BA430/BA440

EF51R-AA/AF disk drive

EF51-RA

BA430/BA440

EF52R -AA/AF disk drive

EF52-RA

BA430/BA440

EF53-AA/AF disk drive

E¥53-A

BA430/BA440

EF series battery pack

12-37620--01

BA430/BA440

3-2

BA430/BA440 Enclosure Maintenance

Table 3-1 (Cont.):

BA430/BA440 FRUs

FRU

Part Number

Enclosure

EF/RE -yeres 525 inch ISE front panel

70-27049-01

BA430/BA440

EF/RE -sermes 5.256-inch

interface

5419787 01

BA430/BA440

remote

5419791 01

BA430/BA440

EF/RFEF.geries 5.25-inch ISE remote front
panel cable

17-02706-01

BA430/BA440

Fans, DC

12-31500--01

BA430/BA440

Fuse, 0.5 A pico, 125V

12-09159-00

BA440

Fuse, 2.0 A pico, 125 V

121092906

BA440

Fuse, 1.5 A, 125 V

12-10929-08

BA440

Fuse, 062 A, 125 V

90--09122-00

BA440

Ground wire

12-13756--A8

BA430/BA440

Harness, fan tray

17-02507-01

BA430/BA440

Key

12-17119-01

BA430/BA440

Module, DSSI terminator/interface

M9715--AA

BA430

Module, power harness

54-19789-01

BA440

Panel, dual blank

74 -33507-01

BA430/BA440

Panel, drive filler

70-27414-01

BA430/BA440

Plug, address 1D set (8CSI)

12-28766-28

BA430/BA440

Plug, address 11} set (DSShH

12-28766--19

BA430/BA440

Power supply, 120/240 V

H7874 00

BA430/BA440

RFITE-AA/AYF disk drve

RE31-EA

BA430/BA440

RF31 head-disk assembly

70-24697-01

BA430/BA440

RF31 electronic control module

54--18329-01

BA430/BA440

RF31F-AAAF disk drive

RF31F-EA

RF31F head disk assembly

70-24697-01

BA430/BA440

RF31F electronic control module

54-18329-02

BA430/BA440

ISE

card

EF/RF scnes

5.256 inch

ISE

front panel module

BA430/BA440 FRU Removal and Repiacement

3-3

Table 3-1 (Cont.):

BA430/BA440 FRUs

FRU

Part Number

Enclosure

RE3T-AA/AF disk drive

RF3IT-EA

BA430/BA440!

RF3ISE AA/AF disk drive

RF35-KA

BA43(/BA440!

RET1E-AA/AF disk drive

RET1 KA

BA430/BA440

RF71 head-disk assembly

70-23557-01

BA430/BA440

RF71 electronic control module

54--18316-02

BA430/BA440

RF72E - AA/AF disk drive ISE

RF72-EA

BA430/BA440

RI*72 head-disk assembly

70--26972-01

BA430/BA440

RE'72 electronic control module

54--10091 -01

RA430/BA440

RF73k -AA/AF disk drive

RF73-EA

BA430/BA440

RE73 head-disk assembly

70--28814 01

BA430/BA440

RF73 electronic control module

54-19119 01

BA430/BA440

REF series 3.5 inch ISE front panel

70 29478 01

BA430/BA440

170342801

BA430/BA440

RE-series 3.5-1nch ISE interface card

HM--19787-03

BA430/BA440

RE -series

54-21530-01

BA430/BA440

RZ56E- AA/AF disk drive

RZ56-EA

BA430

RZ56 clectronic control module

29-27889-01

BA430

RZ56 head-disk assembly

29-27880--01

BA430

RZA7E -AA/AF disk drive

R757--EA

BA430

RZ57 electronic control module

29 28159 01

BA430

RZ57 head-disk assembly

29-281568-01

BA430

RZ58E--AA/AF disk drive

RZ568-EA

BA430!

RZ-series ISE interface card

54-20136-01

BA430/BA440

RZ-series I1SE remote front pancl module

654--20400-01

BA430

R7Z-series 1SE remote front panel eable

170288701

BA430

RF-series

3.6-inch

ISE

remote

front

panel cable

3.5-inch

ISE

remote

front

panel module

"Entire unit is FRU. Head disk assembly (HDA) and electronic control module are not FRU
level replacements

3-4

BA430/BA440 Enclosure Maintenance

Table 3-1 (Cont.):

BA430/BA440 FRUs

FRU

Part Number

Enclosure

RZ-series ISE front panel

702704903

RA430

Terminator, SCSI

12-30652 01

BA430

Terminator, 1)SSI

12--29258-01

BA440

TEE6E-JAMY tape drive

TH85-BA

BA430/BA440

TF&5 interface card

54-19787-02

BA430/BA440

TF85 remote front panel module

54 -20336-01

BA430/BA440

TF85 ISE front panel

70--27050-01

BA430/BA440

TK50E ~-AA/AF tape drive

TK50-EA

BA430/BA440

TK-series front panel

70-27050-02

BA430/BA440

TK-series interface card

54-20136-02

TQRKH0 controller

M7546--00

BA430/BA440

TK70- AA/AF tape drive

TK70-EA

BA43(0/BA440

TQK70 controller

M7559-00

BA430/BA440

TLZ04-JA/JF tape drive

TLZ04-AA

BA430/BA440

TLZ04 tape drive front panel module

54-20438-01

BA430/BA440

TLZO4 wape drive interface card

54-20136-03

BA430/BA440

TLZ04 tape drive ID cable

17-01936-02

BA430/BA440

T1.Z204 1SE front panel

70-28081-01

BA430/BA440

Several different modules, disk ISEs, and tape ISEs may be present,
depending on which CPU and mass storage devices are installed. Refer
to the applicable CPU maintenance manual for a complete options list.

3.2 Removing Modules
NOTE: The

illustrations

Duplicating

the

same

basic

this

section

show

illustrations for

the

BA440

enclosure.

BA430 enclosure

unnecessary. The removal procedures are the same for both enclosures.
Modules designed for BA400-series enclosures have handles that provide
both external I/0) connections and an electrical and environmental seal for
the card cage. Standard Q22-bus modules used in other enclosures, such
as the TQK70, use a blank cover instead of a handle. There is a different
removal procedure for the three types of modules.

BA430/BA440 FRU Removal and Replacement

3-5

Modules with ratchet ejector handles

Modules with attached handles

Modules with covers

For more information about modules and handles see Section 1.3, Module
Handles and Covers in Chapter 1.

3.2.1 Removing Modules with Ratchet Ejector Handles
CAUTION: Static electricity can damage integrated circuits. Use the wrist
strap and antistatic mat ‘ound in the static-protective service kit (29-2624600) when you work with the internal parts of a computer system.

Ratchet ejector handles (Figure 3-1) are used on the BA440 CPU and
memory modules to ensure a snug fit against the system’s backplane.

This design ensures constant tension against the backplane for optimum
connector pin contact.

The following procedure shows the logical steps used to remove a module
1.

Unlock and open both access doors together to reach the Power switch

with ratchet handles.

Set the Power switch to off (0).

on the power supply.

Put on the grounded wrist strap and attach the alligator clip to the

system’s chassis.

Note the orientation of external cables connected to the H3604 console
module. Label and disconnect the cables (if applicable).

Release the quarter-turn captive screws that hold the H3604 console

Swing open the H3604 console module.

module to the card cage (Figure 3-2).

Note the orientation of the internal cables connected to the module
behind the module cover. Carefully disconnect the internal cables (if
applicable).

Move the ratchet handles to the side to release them from the sloping

teeth (Figure 3-1), then gently pull the ratchet handles towrrd you and
shde the module out of the card cage (if applicable).

3-6

BA430/BA440 Enciosure Maintenance

Figure 3-~1: Ratchet Ejector Handles

Ejector

Handles

MLO-004227

3.2.2 Removing Modules with Attached Handles
CAUTION: Use the static-protective service kit (29-26246-00) when working
with modules.
1.

Unlock and open both access doors together to reach the Power switch
on the power supply.

Set the Power switch to off (0).

Put on the grounded wrist strap and attach the alligator clip to the
system’s chassis.

Label and disconnect the cables. Note the orientation of external cables
that may be connected to the module handle.

BA430/BA440 FRU Removal and Replacement

3-7

5. Release the quarter-turn captive screws that hold the handle to the
card cage (Figure 3-2).

Gently pull the release handles at the top and bottom of the module
toward you and slide the module out of the card cage. (Figure 3-3).

Figure 3-2:

Releasing Quarter-Turn Captive Screws

To Release: Push In and Turn
Counterclockwise 1/4-Turn

To Fasten: Push In and Turn

Clockwise 1/4-Turn

Attach Antistatic
Wrist Strap to
2

ystem Chassis
MLO-004259

3-8

BA43(0/BA440 Enclosure Maintenance

Figure 3-3:

Removing a Module

Attach Antistatic

Wrist Strap to

PRRRRERE

NYIYIIYY

arsicnis
A

—

N
-

System Chassis

\ J

MLO-004209

3.2.3 Removing Modules with Covers
CAUTION: Use the static-protective service kit (29-26246-00) when working
with modules.

Unlock and open both ac.ess doors together to reach the Power switch

on the power supply.

Set the Power switch to off (0).

Put on the grounded wrist strap and attach the alligator clip to the

metal part of the system’s chassis.

Release the quarter-turn captive screws that hold the cover to the card

cage (Figure 3-2). Set the cover aside.

BA430/BA440 FRU Removal and Replacement

3-9

Note the orientation of any internal cables connected to the module
behind the module cover. Some connectors are not keyed. Carefully
disconnect the internal cables.

Pull the module lever handle out from the top and bottom and slide the

module out of the card cage.

3.2.4 Special Modules
The following three modules are system-specific and dedicated to a specific
enclosure and not considered options.

3.2.4.1 M9715-AA Interface Module (BA430 Enclosure Only)
The M9715-AA interface module is located to the left of the H7874 power
supply. This module is positioned in slot 0, a dedicated slot, which is the
first backplane slot.

To remove the M9715 module, first remove the bulkhead assembly from slot
0. The M9715 module is installed in slot O behind the bulkhead assembly.
3.2.4.2 M7638-AA /O Module (BA430/DECsystem500)
The M7638-AA I/0 module is located in slot 1 next to the M9715 module,
behind the H3605 I/O bulkhead connector.

To remove the M7638 module, first remove all attached cables from the
H3605 /O connectors and then remove the H3605 bulkhead panel from
slot 1.

3.2.4.3 Vterm Board Removal (BA440 Enclosure Only)
To remove the Vierm board from the BA440 enclosure backplane, perform
the following steps:
1.

Open the upper access door.

Remove the third drive (if installed, counting from the left).

Remove the single screw holding the Vterm board to the backplane and
remove the board.

CAUTION: The screw holding this board is not a captive screw.
To install a Vterm board, reverse the removal procedure.

3-10

BA430/BA440 Enclosure Maintenance

3.3 Replacing EF-, RF-, and RZ-Series ISEs
This section describes how to replace EF-, RF-, or RZ-series ISEs. In
addition, procedures are provided to replace the following individual FRUs
that make up the mounting hardware for the ISE:
¢

[SE front panel module

Interface card assembly

Remote front panel cable

For information on troubleshooting strategy,
error analysis,
and
diagnostics, as well as information on removal and replacement of the drive
module and head-disk assembly (HDA), refer to the appropriate service
manual for the device. Replacing the drive module on an ISE does not
require removal of the ISE mounting hardware, except when there are
dual drive ISEs.
NOTE: There are two variants of the EF-series.
¢

EFxxR

EFxx

The EFxxR contains a battery that you can replace, or if necessary you can
replace the whole device. Since the EFxx contains no replaceable parts, you

must replace a failed EFxx with a new device.

3.3.1 Removing an ISE from the Mass Storage Cavity
Use the following instructions to remove an EF-/RF-/RZ-series ISE. Refer
to Figure 3-4.
NOTE: The ISE figures throughout this chapter show the RF-series variety,
but the procedures are identical for the EF- and RZ-series ISEs.

BA430/BA440 FRU Removal and Replacement

3-11

CAUTION: Static electricity can damage integrated circuits. Use the wrist
strap and antistatic mat found in the static-protective service kit (29-26246-00) when you work with the internal parts of a computer system.
Handle ISEs with care. Dropping or bumping the ISE can damage the disk
surface. Carry or hold the ISEs by their metal brackets to avoid damaging
the drive module.

3-12

BA430/BA440 Enclosure Maintenance

Figure 3-4:

Remove the ISE

Phillips Screw

A
12

Remote Front

Panel Cable ~_

Velcro

RF 3 5-nch

\\\\\\\\\\\\% '

RZ 525 nch

Remote Front
Panel Cable

Finger Cutouts
MLO-007247

BA430/BA440 FRU Removal and Replacement

3-13

Loosen the single captive Phillips serew that secures the ISE front panel
(Figure 3-4A).
Separate the ISE front panel from the enclosure, being careful of the
remote front panel cable, which is connected to the ISE front panel.
NOTE: If the cause of the ISE failure is undetermined, inspect the

connection of the remote front panel cable to the ISE front panel module.
The cable may not be connected securely, or the cable or connector may
be defective.

If the front panel module appears to be the problem, refer to Section 3.3.3
for instructions on replacing the ISE front panel module (54-19791-01
5.25-inch EF/RF-series; 54-21530-01 3.5-inch RF-series; 54-20400-01
RZ-series). To replace the remote front panel cable, continue removing
the ISE and then refer to Section 3.3.5 for instructions on replacing the
remote front panel cable (17-02706-01 5.25-inch EF|RF-series;
17-02887-01 5.25-inch RZ-series).

If the remote front panel cable 17-03428-01 on a 3.5-inch RF-Series ISE
is defective refer to Section 3.3.2.

Unplug the remote front panel cable from the module inside the ISE
front panel (Figure 3-4B, C) and set the front panel aside.
NOTE: To ensure that each bus node ID plug remains with the original
storage device, repair or replace only one ISE at a time.
Loosen the upper and lower captive screws that hold the ISE in place
(Figure 3-4D).
Using the upper and lower finger cutouts on the ISE bracket, carefully

pull the ISE out of its backplane connector and slide the drive out of
the enclosure. Support the weight of the ISE at the underside of the
lower bracket as the ISE clears the enclosure (Figure 3—4D).

CAUTION: Do not touch the drive module. The drive module contains
sensitive electronic circuitry.

NOTE: If the cause of the ISE failure is undetermined, inspect the
condition of the interface card and its associated cables and cable
connections. Refer to Section 3.3.4.1 for instructions on replacing the
interface card assembly (54-19787-01 5.25-inch EF|RF-series;
54-20136-01 5.25-inch RZ-series). See Section 3.3.4.2 to replace the
interface card assembly 54-19787-03 3.5-inch RF-Series.

3-14

BA430/BA440 Enclosure Maintenance

Reverse the procedure to reinstall the ISE.

3.3.2 Replacing the Remote Front Panel Cable on a 3.5-inch
RF-series ISE
This procedure assumes you have completed steps 1 and 2 in Section 3.3.1.
Complete the following steps to replace the defective cable:
1.

Unplug the remote front panel cable(s) from the connector(s) inside the
ISE front panel module (Figure 3-4B, C).
Unplug the remote front panel cable(s) from the connector on the
controller board.
Examine the remote front panel cable very carefully, and if you find
that the cable(s) is (are) defective, replace it (them).

Reverse the procedure to install the new remote front cable.

3.3.3 Replacing the ISE Front Panel Module
This procedure assumes you have completed steps 1 and 2 in Section 3.3.1.
Use the following instructions to remove the ISE front panel module
(54-19791-01 5.25-inch EF/RF-series; 54-20400-00 5.25-inch RZ-series;
54-21530-01 3.5-inch RF-series) and refer to Figure 3-5.
1.

Unplug the remote front panel cable(s) from the connector(s) inside the
ISE front panel module.
For the 5.25-inch EF-, RF-, and RZ-series ISEs (Figure 3-—4B)
For the 3.5-inch RF-series ISEs (Figure 3-4C)

Remove the bus node ID plug(s) on the ISE front panel by pulling it
(them) straight out. Note the positions of the plugs on a dual drive, so
you can reinstall the plugs in the original positions.
Lift the two plastic tabs that hold the front panel module in place and
remove the module.

Reverse the procedure to install a module.

BA430/BA440 FRU Removal and Replacement

3-15

Figure 3-5:

Removing an ISE Front Panel Module

Plastic Tabs

MLO-004249

3.3.4 Replacing the Interface Card
There are two procedures for replacing the interface card:

Replacing the interface card on a 5.25-inch EF-, RF-, or RZ-series ISE

Replacing the

interface

card

3.5-inch

RF-series

ISE

(See

Section 3.3.4.2

Complete the following steps to replace the interface card assembly on a
5.25-inch ISE.

3.3.4.1 Replacing the interface Card on the 5.25-inch EF-, RF- and
RZ-Series ISES
The following sections contain instructions for removing the interface card
assembly (54-19787-01 5.25-inch EF/RF-series; 54-20136-01 5.25-inch RZseries).

3-16

BA430/BA440 Enclosure Maintenance

3.3.4.1.1 Remove the Top Bracket

This procedure assumes you have removed the ISE as described in
Section 2 3.1

Remove the 'SE’s top bracket as follows:
1.

Place the ISE on an antistatic mat.

Remove the two Phillips screws at the rubber shock bushings that
secure the top bracket to the head-disk assembly (Figure 3-6).
CAUTION: Early models of the RF-series ISEs use four screws of two
different lengths to secure the top and bottom brackets. The two longer
screws (by one-eighth inch) must only be used in the shock bushing
toward the back of the drive. If this is not done, the drive may be
damaged.

Figure 3-6:

Removing Bracket Screws

MLO-004213

BA430/BA440 FRU Removal and Replacement

3-17

Slide the interface card assembly up and lift off the top bracket
(Figure 3-7). Place the bracket aside.

Figure 3-7:

Removing the ISE Top Bracket

Upper Bracket

Interface Card

Assembly

MLO-004214

3.3.4.1.2 Instail the New the Interface Card
Remove the interface card assembly as follows:
1.

Unplug the 5-pin (EF/RF-series) or 4-pin (RZ-series) power cable and
the 50-pin signal cable from their connectors on the ISE controller
module.

NOTE: Observe cable routing to ensure that you route the cables
properly when reassembling.

Lift and remove the plastic interface card assembly being careful to
guide the cables through the cutout in the metal bracket (Figure 3-8).

3-18

BA430/BA440 Enclosure Maintenance

'To remove the plastic assembly from the interface card, remove the two
Phillips screws that hold it in place (Figure 3—-8). Save the two Phillips
SCTews,

Set the new interface card on the plastic assembly so that the power

harness 1s on the side nearest the flange. Use the two Phillips screws
to secure the interface card to the plastic assembly.

NOTE: Tighten the screws only until they are securely fastened (3 inch-

pounds).
5.

Reverse the procedure to install the interface card assembly.

Figure 3-8:

Replacing the Interface Card Assembly

Phillips
Screws

Interface Card

Assembly
MLO 004257

BA430/BA440 FRU Removal and Replacement

3-19

3.3.4.2 Replace the interface Card on 3.5-inch RF-Series ISEs
The following sections describe how to replace the interface card on the
3.5-inch RF-series ISEs.

3.3.4.2.1 Remove the Top Qutside Bracket
Place the ISE on an antistatic mat.

This procedure assumes you have removed the ISE as described in
Section 3.3.1.

Complete the following steps to remove the top outside bracket from the
ISE:

Unplug the remote front panel cable(s) from the storage device(s). Set
it (them) aside; it (they) will be reinstalled later in the procedure.

Kemove the two Phillips screws at the rubber shock bushings on the
top outside bracket and put them aside.

Push up the plastic flange of the interface card assembly, and lift the
top outside bracket's rear slot over the plastic flange (Figure 3-9).

3-20

BA430/BA440 Enclosure Maintenance

Figure 3-9:

Remove the Top Outside Bracket From the ISE

81— — Remote Front Panel

Cable Connector

5 Pin Power Cable

Intertace Card

Assembly

‘

“— - 50-Pin Signal Cable

MLO-007241

3.3.4.2.2 Remove the Old Interface Card and Install the New Interface

Card

Complete the following steps to remove the interface card:
1.

Unplug the 5-pin power cable(s) and the 50-pin signal cable(s) from
their connectors on the ISE controller modules (Figure 3-9).

NOTE: Observe the cable routing to ensure that you route the cables
properly when reassembling.
2.

Remove the plastic interface card assembly, being careful to guide the
cables through the cutout in the back of the bottom outside bracket
(Figure 3-10).

BA430/BA440 FRU Removal and Replacement

3-21

Figure 3—-10:

Replace the Interface Card

5 Pin
Power Cable

Phillips
Screws

50-Pin
Signal Cable

MLO-007245

To remove the interface card from the plastic assembly, remove the two
Phillips screws that hold it in place. Do not discard the two Phillips
SCTews.

Set the new interface card on the plastic assembly so that the power
harness is on the side nearest the flange. Use the two Phillips screws
to secure the interface card to the plastic assembly.

NOTE: Tighten the screws only until they are securely fastened (3 inchpounds).
5.

Reverse the procedure to install the interface card assembly.

3-22

BA430/BA440 Enclcsure Maintenance

3.3.5 Replacing the Remote Front Panel Cable on 5.25-inch
ISEs
To remove the remote front panel cable, you first remove the ISE as
described in Section 3.3.1 and the ISE top bracket as described in
Section 3.3.4.1.1.
At this point the following procedures have to be
completed:
1.

Unplug the interface card assembly power cable (5 pin cable on the
EF/RF-series, and 4 pin cable on the RZ-series) from the drive.
Unplug the interface card assembly 50 pin data cable from the drive.

Unplug the remote front panel cable from the drive.

Remove the ISE bottom bracket by removing the two Phillips screws at
the rubber shock bushings that secure the bracket to the the head-disk
assembly (Figure 3~11).

NOTE: Take careful note of the orientation and routing of the front panel
cable.
To remove the remote front panel cable, pull the cable from the bottom
bracket at the two points where the cable is secured by Velcro.

Reverse the procedure to install the remote front panel cable.

BA430/BA440 FRU Removal and Replacement

3-23

Figure 3—11:

Removing the Remote Front Panel Cable

"~ Remote Front

. Interface

Card

Assembly

T
2
Q

(o]

[¢]

[v]

[¢]

(02}

;__
ol

S,7

g 9

Panel Cable

/ Phillips Screws

é/
MLO 004258

3-24

BA430/BA440 Enclosure Maintenance

3.3.6 Replacing a Storage Device on a 5.25-inch RF- or
RZ-Series ISE
CAUTION: Static electricity can damage integrated circuits.
Use the
antistatic wrist strap and antistatic pad found in the static-protective
field service kit (29-26246-00) when you work with the internal parts of
a computer system.

This section describes how to replace a storage device on a 5.25-inch RFor RZ-series ISE. This procedure assumes that you have removed the ISE
as described in Section 3.3.1.
NOTE: The only internal component of an EF-series ISE that can be
replaced, is the battery pack (12-37620-01) (see Section 3.3.8). If any of
the other internal components of an EF-series ISE fails, the complete ISE

must be replaced.
To remove the storage device complete the following procedures:
1.

Place the ISE on an antistatic mat.

Unplug the interface card power cable (5 pin cable on RF-series and 4
pin cable on RZ-series) from the controller module on the drive.

Unplug the signal cable (50 pin) from the controller module on the drive.
4.

Unplug the remote front panel cable from the controller module on the
drive.

Remove the top bracket, by removing the two Phillips screws at
the rubber shock bushings that secure the bracket to the head-disk

assembly. Put the mounting screws aside, you will need them when
you install the new drive
6.

Slide the interface card assembly up and lift off the top bracket
(Figure 3-12). Place the bracket aside.

BA430/BA440 FRU Removal and Replacement

3-25

Figure 3—-12:

Removing the ISE Top Bracket

Upper Bracket

interface Card
Assembly

MLO-004214

Remove the bottom bracket by removing the two Phillips screws at the
rubber shock bushings that secure the bracket to the the head-disk
assembly (Figure 3~11). Put the bottom bracket (with the remote front
panel cable attached) and the screws aside.

Remove and put the drive aside.

Reverse the procedure to install the new drive.

Installation Notes

When you install the new drive be sure to complete the following:

Early models of the RF-series ISEs use four screws of two different

lengths to secure the top and bottom brackets. The two longer screws

(by one-eighth inch) must only be used in the shock bushing toward the
back of the drive. Failure to do this can result in damage to the drive.

3-26

BA430/BA440 Enclosure Maintenance

Align the new storage device in the same orientation as the original
device, the controller module to the right.

When reinstalling the top bracket, lift the top bracket’s rear slot over
the flange of the plastic interface card assembly, and then over the tab
at the back of the bottom outside bracket. Both the tab and the flange
must be inside the rear slot of the top bracket.

Make sure that the grounding foil is in place under the front mounting
screw on the bottom bracket.

3.3.7 Replacing a Storage Device on a 3.5-inch RF-Series
ISE
CAUTION: Static electricity can damage integrated circuits.
Use the
antistatic wrist strap and antistatic pad found in the static-protective
field service kit (29-26246-00) when you work with the internal parts of
a computer system.

The 3.5-inch RF-Series ISE may contain one storage devices or it may
contain two storage devices.

The following section describes how to replace a storage device on a 3.5-inch
RF-series ISE. This procedure assumes that you have removed the ISE as
described in Section 3.3.1.
To remove a storage device complete the following procedures:
1.

Place the ISE on an antistatic mat.

Remove the two mounting screws on the top outside bracket and put
them aside.

Push up the plastic flange of the interface card assembly, and lift the
top outside bracket’s rear slot over the plastic flange. Put the bracket
aside. (Figure 3-13)

BA430/BA440 FRU Removal and Replacement

3-27

Figure 3-13:

Remove the Top Outside Bracket From the ISE

Cable Connector
-~ 5-Pin Power Cable

intertace Card

Assembly

50-Pin Signal Cable

MLO-007241

Unplug the 5-pin power cable(s) and the 50-pin signal cable(s) from
their connectors on the ISE controller module(s).

Unplug the remote front panel cable(s) from the controller module(s) on
the storage device(s) and put it (them) aside.

When you remove a storage device from an ISE that contains a single
storage device:

Remove the top inside bracket, by removing the two Phillips screws
that secure the bracket to the head-disk assembly. Place the bracket
and the mounting screws aside, you will need them when you install
the new drive.

Gently turn the storage device upside down so that it rests on the
head-disk assembly.

When you remove a storage device from an ISE that contains two
storage devices:

3-28

BA430/BA440 Enclosure Maintenance

a. Remove the two Phillips screws that secure the top inside bracket
to storage device. Set the screws aside for future use.

b. Gently turn the storage device upside down so that it rests on the
top inside bracket.

6. After removing both mounting screws on the bottom outside bracket,
set the bracket and the screws aside.

7. After removing the Phillips screws that secure the storage device to the
bottom inside bracket (Figure 3-14) you are ready to install the new
storage device.

Figure 3-14:

Removing the Phillips Screws that Secure the Storage
Device to the Bottom Inside Bracket

Phitlips

Bottom Inside
Bracket

Screws

Controller

Modules

MLO-007246

8 Remove the screws that secure the bottom inside bracket to the storage
device. Set them aside for future use.

BA430/BA440 FRU Removal and Replacement

3-29

Slide the storage device out and place it on an antistatic mat.

3.3.7.1 Installing the New Storage Device
Lol
o

Secure the bottom inside bracket to the storage device.

Complete the following procedures to install a new storage device:

Reconnect the remote front panel cable(s) to controller module(s) on the

Secure the top inside bracket to the storage device.

Reinstall the bottom outside bracket and then the top outside bracket.
Reconnect the power (5 pin) and signal (50 pin) cables.
storage device(s).

Installation Notes

When you install the new drive be sure to complete the following:
1.

Align the new storage device in the same orientation as the original
device, the controller module to the left.

When reinstalling the top outside bracket, lift the bracket’s rear slot
over the flange of the plastic interface card assembly, and then over the
tab at the back of the bottom outside bracket. Both the tab and the
flange must be inside the rear slot of the top outside bracket.
Make sure that the grounding foil is in place under the front mounting
screw on the bottom outside bracket.

3.3.8 Replacing the Battery Pack on an EF-Series ISE
This procedure assumes you have removed the ISE as described in
Section 3.3.1.
3.3.8.1 Removing the Mounting Hardware from an EF-Series ISE
Remove the ISE’s top bracket and bottom bracket as follows:
1.

Place the ISE on an antistatic mat.

Remove the two Phillips screws at the rubber shock bushings that
secure the top bracket to the side of the chassis (Figure 3-15). Put
the screws aside.

Slide the interface card assembly up and lift off the top bracket
(Figure 3-15). Place the bracket aside.
Unplug the interface card assembly power cable (5 pin cable) from the
drive.

3-30

BA430/BA440 Enclosure Maintenance

Unplug the interface card assembly 50 pin data cable from the drive.
Unplug the remote front panel cable from the drive.

Remove the ISE bottom bracket by removing the two Phillips screws
at the rubber shock bushings that secure the bracket to the chassis
(Figure 3—15).

NOTE: Take careful note of the orientation and routing of the remote
front panel cable.

BA430/BA440 FRU Removal and Replacement

3-31

Figure 3-15: Removing the Top and Bottom Brackets of a 5.25-inch EFSeries ISE

\ Top Bracket

\ Bottom Bracket
'/,‘

é[

= SCTEWS

Intertace Card
Assembly

3-32

BA430/BA440 Enclosure Maintenance

MLO-009303

3.3.8.2 Replacing the Battery Pack in the Chassis

At this point, you have removed all the mounting components of the EFseries ISE. You are ready to partially disassemble the chassis that contains

the battery pack and to then remove the battery pack. Complete the

following steps to replace the battery pack:

With the controller module connectors facing you, place the chassis on
the side that did not have the skid plate attached to it. The slots for the
cable connectors should be toward the top of the chassis (Figure 3-16).

2. Remove the screws located on each side of the top of the chassis.
(Figure 3—16) Put the screws aside.

Remove the top of the chassis (Figure 3-16) and set it aside.

Figure 3-16:

Removing the Top of the Chassis on a 5.25-inch EF-Series
ISE

Top Cover
of Chassis

‘\\

A e _____Screws

MLO-009304

Disconnect the battery connector from the battery harness connector

(Figure 3-17).

BA430/BA440 FRU Removal and Replacement

3-33

Loosen the holding screw located on the right side of the chassis until
you are able to gently pull the battery out of the chassis. (Figure 3-17)

Remove the battery.

Figure 3-17:

Removing the Battery of a 5.25-inch EF-Series ISE

Connector

Holding

Screw

Battery Pack
MLO 008305

Reverse the procedure to install a new battery pack.

3-34

BA430/BA440 Enclosure Maintenance

3.4 Replacing the TLZ04 Tape Drive
This section describes how to replace the TLZ04 tape drive. In addition,
procedures are provided to replace the following individual FRUs that make
up the mounting hardware for the ISE:
*

Tape drive front panel module

Interface card assembly

D cable

For

information

analysis,

and

BA430/BA440 FRU Removal and Replacement

3-35

troubleshooting

strategy,

error

diagnostics, refer to the TLZ04 tape drive service manual.

3.4.1 Remove the TLZC4 Tape Drive
Use the following instructions to remove a TLZ04 tape drive.

Refer to

Figure 3-18.

CAUTION: Static electricity can damage integrated circuits. Use the wrist
strap and antistatic mat found in the static-protective service kit (29-26216-00) when you work with the internal parts of a computer system.

Handle the tape drive with care. Dropping or bumping it can damage the
drive. Carry or hold the drive by its metal brackets to avoid damaging the
drive.
NOTE: If the cause of the drive failure is undetermined, inspect the

connection of the 1D cable and the TLZ04 front panel.

The cable may

not be connected securely, or the cable or connector may be defective.

If the front panel appears to be the problem, refer to Section 3.4.3 for
instructions on replacing the TLZO4 front panel (54-204380-01).

replace the ID cable, continue removing the tape drive and then refer to

Section 3.4.2 for instructions on replacing 1D cable (17 01936-02).

Unplug the ID cable from the TLZ04 front panel and set the front panel
aside (Figure 3-18B).
Loosen the upper and lower captive screws that hold the drive in place
(Figure 3-18C).

Using the upper and lower finger cutouts on the drive brackets,
carefully pull the drive out of its backplane connector and slide the drive
out of the enclosure. Support the weight of the drive at the underside
of the lower bracket as the drive clears the enclosure (Figure 3-18C).
NOTE: If the cause of the drive failure is undetermined, inspect the

condition of the interface card and its associated cables and cable
connections.

Refer to Section 3.4.4 for instructions on replacing the

interface card assembly (54-20136-03).

Reverse the procedure to reinstall the TLZ04.

3-36

BA430/BA440 Enclosure Maintenance

Figure 3-18:

Removing the TLZ04 Tape Drive

{
i

{

S |

(

Phithps Screw”]

!
i
|

ID Cable

Captive Screw”

Finger Cutouts
Mi.Q-005795

BA430/BA440 FRU Removal and Replacement

3-37

3.4.2 Replacing the ID Cable
NOTE: Observe cable routing to ensure that you route the cables properly
when reassen. bling.
To remove the ID cable:
1.

Loosen the single captive Phillips screw that secures the TLZ04 front
panel (Figure 3-18A).

Separate the TLZ04 front panel from the enclosure, being careful of the
ID cable, which is connected to the TLZ04 front panel.
3.

Unplug one end of the
(Figure 3-18B).

ID cable from the operator control panel

Remove the drive as described in Section 3.4.1.
Unplug the opposite end of the ID cable from the rear of the tape drive
(Figure 3-19).

Reverse the procedure to install a new 1D cable.

3-38

BA430/BA440 Enclosure Maintenance

Figure 3-19:

Removing the ID Cable

1D Cable

MLO-005796

3.4.3 Replacing the TLZ04 Front Panel Module
Complete steps 1 and 2 in Section 3.4.1. Unplug the 1D cable from the from
the TLZ04 front panel. Use the following instructions to remove the TLZ04
front panel module (54-20438-01) and refer to Figure 3-20.
1.

Remove the bus node ID plug on the TLZ04 front panel by pulling it
straight out.

Lift the plastic tab that holds the front panel module in place to remove
the module and then set the front panel aside (Figure 3-20).

Reverse the procedure wo install a module.

BA430/BA440 FRU Removal and Replacement

3-39

Figure 3—-20:

Removing the TLZ04 Front Panel Module

. Plasuc Tab

MLO-005797

3.4.4 Replacing the Interface Card Assembly
Use the following instructions to replace the interface card assembly (54—
20136-03). To remove the interface card assembly, first remove the top
mounting bracket.
3.4.4.1 Removing the Top Mounting Bracket
This procedure assumes you have removed the drive as described
Section 3.4.1. Remove the drive top bracket as follows:

Place the drive on an antistatic mat.

Remove the two Phillips screws at the rubber shock bushings that
secure the top bracket to the tape drive (Figure 3-21).

3-40

BA430/BA440 Enclosure Maintenance

Figure 3-21:

Removing Bracket Screws

MLO-005799

Slide the interface card assembly up and lift off the top bracket
(Figure 3-22). Put the bracket aside.

BA430/BA440 FRU Removal and Replacement

341

Figure 3-22:

Removing the Top Mounting Bracket

Upper Bracket

Intertace Card

Assembly

ML.O-005800

3.4.4.2 Removing the Interface Card Assembly
Remove the interface card assembly as follows:
1.

Unplug the 4-pin power cable and the 50-pin signal cable from their
connectors on the drive controller module.
NOTE: Observe cable

routing to ensure that you

route the cables

properly when reassembling.
2.

Lift and remove the plastic interface card assembly, being careful to

guide the cables through the cutout in the metal bracket (Figure 3-23).
3.

To remove the plastic assembly from the interface card, remove the two
Phillips screws that hold it in place (Figure 3-23). Put the screws aside.

3-42

BAA430/BA440 Enclosure Maintenance

Set the new interface card on the plastic assembly so that the power

harness is on the side nearest the flange. Use the two Phillips screws
to secure the interface card to the plastic assembly.
NOTE:

.ghten the screws only until they are securely fastened (3 inch-

pounds).

Reverse the procedure to install the interface card assembly.

Figure 3-23:

Removing the Interface Card Assembly

interface Card

Phillips

Assembly

Screws

MLO-005801

BA430/BA440 FRU Remova! and Replacement

3-43

3.4.5 Replacing the Tape Drive
To remove the tape drive, you first remove the tape drive as described
in Section 3.4.1 and the top bracket as described in Section 3.4.4.1. At
this point the following procedures have to be completed:
1.

Unplug the power cable (4 pin) and the data cable (50 pin) from the
tape drive controller module.

Unplug the ID cable from the tape drive.

Remove the bottom mounting bracket by removing the two Phillips
screws at the rubber shock bushings that secure the bottom bracket
to the tape drive (Figure 3-24).

3-44

BA430/BA440 Enclosure Maintenance

Figure 3-24:

Removing the Tape Drive

1D Cable

=4 [~ Interface

$— Phillips Screws

Assembly
MLO-005802

Remove the tape drive and set it aside.

Reverse the procedure to install a tape drive.

Installation Notes

When you install the new drive be sure to complete the following:

Align the new storage device in the same orientation as the original
device, left side down.

BA430/BA440 FRU Removal and Replacement

3-45

When reinstalling the top bracket, lift the bracket’s rear slot over the
flange of the plastic interface card assembly, and then over the tab at
the back of the bottom bracket. Both the tab and the flange must be
inside the rear slot of the top bracket.

Make sure that the grounding foil is in place under the front mounting
screw on both the top and the bottom brackets.

3.5 Replacing a TK-Series Tape Drive
This section describes how to replace the TK-series tape drive. In addition,
procedures are provided to replace the Interface card assembly.

Remove a tape drive from the mass storage cavity as follows:
1.

Loosen the captive screw at the top of the tape drive’s front panel
(Figure 3-25 Remove the tape drive front panel and set it aside.

Figure 3-25:

Releasing TK-Series Captive Screws

MLO 004215

Release the tape drive from the enclosure by loosening the captive
screws above and below the drive unit.

3-46

BA430/BA440 Enclosure Maintenance

3. Slowly slide the tape drive unit partially out of the BA430/BA440
enclosure until you can access the data cable at the rear of the drive
(Fi wre 3-26).

Figure!

"G:

Removing a TK-Series Drive Unit

ML(O-004276

Note the orientation of the data cable. Disconnect the data cable from

the tape drive (Figure 3-30).

5. Continue to slide the tape drive unit out of the BA430/BA440 enclosure
(Figure 3-26) and lay it left side down on an antistatic mat.

3.5.1 Replace the Interface Card
This section describes how to replace the interface card on a TK-series drive.
1.

These instructions assume that the procedures in Section 3.5 have been
completed.

Remove the top bracket, by removing the two Phillips screws at the
rubber shock bushings that secure the bracket to the tape drive. Push
up the plastic flange of the interface card assembly, lift the top bracket’s
rear slot over the plastic flange Figure 3-27.

BA430/BA440 FRU Removal and Replacement

3-47

Figure 3-27:

Removing the Top Mounting Bracket

Upper Bracket

interface Card
Assembliy

MLO-005800

Place the bracket and the mounting screws aside, you will need them

when yot install the new drive

Unplug the interface card power cable (4 pin cable) from the tape drive
controller module.

Carefully remove the interface card from the bottom bracket.

To remove the plastic assembly from the interface card, remove the two
Phillips screws that hold it i1 place (Figure 3-23). Put the screws aside.

Set the new interiuce card on the plastic assembly so that the power
harness is on the side nearest the flange. Use the two Phillips screws
to secure the interface card to the plastic assembly.
NOTE: Tighten the screws only until they are securely fastened (3 inch-

pounds).

3-48

BA430/BA440 Enclosure Maintenance

7. Reverse this procedure to install an interface card.
3.5.2 Replace the TK-Series Tape Drive
This procedure assumes you have removed the drive from the mass storage
cavity as described in Section 3.5. At this point the following procedures
must be completed to replace a TK-series tape drive:
1.

Place the drive on an antistatic mat.

Remove the two Phillips screws at the rubber shock bushings that
secure the top bracket to the tape drive (Figure 3-28).

Figure 3-28: Removing Bracket Screws

MLO 005799

Slide the interface card assembly up and lift off the top bracket
(Figure 3-29). Put the bracket aside.

BA430/BA440 FRU Removal and Replacement

3-49

Figure 3-29:

Removing the Top Mounting Bracket

Upper Bracket

Interface Card
Assembly

MLO-005800

Unplug the interface card power cable (4 pin cable) from the tape drive
controller module.

Remove the bottom bracket, by removing the two Phillips screws at the
rubber shock bushings that secure the bracket to the tape drive. Place
the bracket and the mounting screws aside, you will need them when
you install the new drive

Remove the drive and set it aside.

Reverse the procedure to install a new tape drive.

3-50

BA430/BA440 Enclosure Maintenance

Installation Notes

When you install the new drive be sure to complete the following:
1.

If the new TK-series tape drive unit is attached to a skid plate, you
must remove the skid plate from the replacement drive and install the
skid plate on the defective drive before returning the drive.

When replacing a TK-series drive, do not pinch the data cable at the
rear of the tape drive (Figure 3-30). If you feel resistance when sliding
the drive into the BA430/BA440 enclosure, remove the drive unit and
check that the cable is clear.
Align the new storage device in the same orientation as the original
device, left side down.
When reinstalling the top bracket, lift the bracket’s rear slot over the
flange of the plastic interface card assembly, and then over the tab at
the back of the bottom bracket. Both the tab and the flange must be
inside the rear slot of the top bracket.
Make sure that the grounding foil is in place under the front mounting
screw on both the top and the bottom brackets.

BA430/BA440 FRU Removal and Replacement

3-51

Figure 3-30:

Removing a TK-Series Cable

Data Cable «-——-\

Interface Card

Assembly

MLO-004228

3.6 Replacing a TF-Series Tape Drive
This section describes how to replace the TLZ04 tape drive. In addition,
procedures are provided to replace the following individual FRUs that make
up the mounting hardware for the ISE:
*

Tape drive front panel module

Interface card assembly

3-52

BA430/BA440 Enclosure Maintenance

Remove a TF-series tape drive from the mass storage cavity as follows:
1.

Loosen the the single captive Phillips screw that secures the TF85 front
panel (Figure 3-31A).

Separate the TF85 front panel from the enclosure, then disconnect the
ID cable from the TF85 drive module (Figure 3-31B) and set the panel
aside.

Loosen the upper and lower captive screws that hold the drive in place
(Figure 3-31C).

BA430/BA440 FRU Removal and Replacement

3-53

Figure 3-31:

Removing a TF-Series Drive Unit

Phillips
Screw —§

iD Cable

Captwve Screws (2) ~

uts [

Fmger CU‘O

Guide Tabs
MLO-006703

Place the drive on an antistatic mat.

3-54

BA430/BA440 Enclosure Maintenance

3.6.1 Replacing the TF-Series Front Panel Module
Complete steps 1 and 2 in Section 3.6. Unplug the ID cable from the from
the front panel. Use the following instructions to remove the TF-series tape
drive front panel module (54-20336-01) and refer to Figure 3-32.

Remove the bus node ID plug on the front panel by pulling it straight
out.

Lift the plastic tab that holds the front panel module in place to remove
the module and then set the front panel aside (Figure 3-32).

Reverse the procedure to install a module.

Figure 3-32:

Removing the TF-Series Front Panel Module

_— Plastic Tab

MLO-006797

BA430/BA440 FRU Removal and Replacement

3-55

3.6.2 Replacing the Interface Card Assembly
Use the following instructions to replace the interface card assembly
(54-19787-02).
1.

To remove the interface card assembly, you first remove the tape drive
as described in Section 3.6

Figure 3-33:

Removing Bracket Screws

ML O-005799

Remove the top bracket, by removing the two Phillips screws at
the rubber shock bushings that secure the bracket to the tape drive
(Figure 3-33). Push up the plastic flange of the interface card assembly,
lift the top bracket’s rear slot over the plastic flange Figure 3-34.

3-56

BA430/BA440 Enclosure Maintenance

Figure 3-34:

Removing the Top Mounting Bracket

Upper Bracket

Assembly

Intertace Card

MLO-005800

Place the bracket and the mounting screws aside, you will need them
when you install the new drive.
3.

Unplug the two interface card power cables from their connectors on
the tape drive. Unplug the 50 pin data cable.

NOTE: Observe cable routing to ensure that you route the cables
properly when reassembling.

Lift and remove the plastic interface card assembly, being careful to
guide the cables through the cutout in the metal bracket.

To remove the plastic assembly from the interface card, remove the two

Phillips screws that hold it in place (Figure 3-35). Put the screws aside.

BA430/BA440 FRU Removal and Replacement

3-57

Set the new interface card on the plastic assembly so that the power
harness is on the side nearest the flange. Use the two Phillips screws
to secure the interface card to the plastic assembly.
NOTE: Tighten the screws only until they are securely fastened (3 inchpounds).

Reverse the procedure to install the interface card assembly.

Figure 3-35:

Removing the interface Card Assembly

Intertace Card
Assembiy

\/ / 1

Philips
Screws

MLO-005801

3.6.3 Replacing the Tape Drive
This section describes how to replace the tape drive:

To replace the tape drive, you first remove the tape drive as described
in Section 3.6

Remove the top bracket, by removing the vwo Phillips screws at the
rubber shock bushings that secure the bracket to the tape drive. Push
up the plastic flange of the interface card assembly, lift the top bracket’s
rear slot over the plastic flange Figure 3-36.

3-58

BA430/BA440 Enciosure Maintenance

Figure 3-36: Removing the Top Mounting Bracket

Upper Bracket

intertace Card

Assembly

MLO-005800

Place the bracket and the mounting screws aside, you will need them
when you install the new drive.

3. Disconnect the two interface card power cables and the interface card
data cable.

Remove the drive and set it aside.

Reverse the procedure to install a new tape drive.

BA430/BA440 FRU Removal and Replacement

3-59

Installation Notes

When you install the new drive be sure to complete the following:
1.

Align the new storage device in the same orientation as the original
device, left side down.
When reinstalling the top bracket, lift the bracket’s rear slot over the
flange of the plastic interface card assembly, and then over the tab at
the back of the bottom bracket. Both the tab and the flange must be
inside the rear slot of the top bracket.

Make sure that the grounding foil is in place under the front mounting

screw on the top and bottom brackets.

3.7 Removing the System Control Panel (SCP)
To remove the system control panel (Figure 3-37) perform the following
steps:

Open the upper access door.

Release the top captive screw securing the assembly.

Separate the SCP from the enclosure, being careful of the interface
cable that is connected to the SCP.

Detach the interface cable.

Remove the SCP.

Reverse the procedure to install a new SCP.

3-60

BA430/BA440 Enclosure Maintenance

Figure 3-37: Removing the System Control Panel (SCP)
Switches

Switches

HEEA| o
31 4
22

MLO-004217

Installation Note

When the four switch pack switches are set to the on position, the system

controls function normally. If the switch pack switches are all positioned
off, the system controls on the panel are disabled.

3.8 Removing the Power Supply

The BA430/BA440 enclosure has one power supply. To remove the power
supply, follow the procedure carefully.

Danger High Voltage

This warning symbol indicates risk of electric shock.

BA430/BA440 FRU Removal and Replacement

3-61

WARNING: The power cable must be removed from the wall outlet to
disconnect ac power. The circuit breaker Power switch is NOT a disconnect
device.
WARNING: The power supply stores an electrical charge which, if not
discharged correctly, could cause physical harm.
Use the following
procedure to discharge the power supply before removing it:

Set the Power switch to off (0). Unplug the power cable from the wall

Remove the power cable from the power supply (Figure 3-38).

outlet.

Figure 3-38:

Removing the Power Supply Cable

Remove the ground wire (if any) and power control bus cables (if any).

MLO-004218

Loosen the top captive screw on the power supply.

Discharge the power supply by raising the cover plate up against the
bottom of the power supply and holding it there for at least 45 seconds

3-62

BA430/B8A440 Enclosure Maintenance

(Figure 3-39). The sliding plate depresses the discharge button, located
at the bottom of the power supply.

WARNING: Hold the discharge plate in the up position for at least 45
seconds after removing the ac power cable. This discharges the system
and makes the power supply safe to handle.
Figure 3-39:

Discharge
Switch

Discharging the Power Supply

Captive
Screw

Cover Plate

MLO-004229

6. Release the bottom captive screw on the power supply while pushing
the cover plate up to expose the bottom screw (Figure 3-39).

Grasp the power supply handle with one hand and pull the power
supply out from the backplane connection (Figure 3-40).

Remove the power supply. Be careful of the power supply weight.

NOTE: A plate covers one fastener that holds the power supply to the
BA430/BA440 enclosure in such a way that the power cable must be
removed before this fastener can be disconnected. This fastener

MUST

BA430/BA440 FRU Removal and Replacement

3-63

BE TIGHTENED when servicing is completed before replacing the power
cable.

Reverse the procedure to install a new power supply.

Figure 3-40:

Removing the Power Supply

MLO-004226

Installation Notes

When installing the power supply, make sure the top and bottom edges of
the supply are aligned and mounted in the plastic guides in the enclosure.
Make sure the bottom screw is tightened.

3.9 Removing Fans
A fan tray containing two 6-inch fans provides system cooling for the BA430
/BA440 enclosure. The fans are controlled by a heat sensor that accurately
varies the fan speed according to the system’s temperature needs. The two
fans are attached to the metal tray by a single mounting bracket. The fan
tray slides under the card cage and fastens to the chassis by two thumb
SCTeWS,

3-64

BA430/BA440 Enclosure Maintenance

Open the lower access door.

Unplug the power cable from the power supply.

Remove or reroute any option cables away from the fan tray.

Loosen the two captive screws that hold the fan tray to the chassis.

.U!

Complete the following steps to to remove the fans:

Pull out the fan tray (Figure 3-41).

Figure 3-41:

Removing the Fan Tray

Captive Screws
MLO-004220

6.
7.

Disconnect the dc power cable connector from the fan (Figure 3-42).
Remove the center screw and bracket that secures both fans to the tray

(Figure 3-42).

BA430/BA440 FRU Removal and Replacement

3-65

Figure 3-42:

Removing the Fan Assembly

Continuity Clip

Q\/

== Mounting
Bracket

MLO-004221

Remove the fan(s).

NOTE: It is recommended that fans be replaced in sets (or pairs).
9.

Reverse the procedure to install new fan(s).

3.10 Removing a BA430/BA440 Backplane
This section covers the removal procedures for both the BA440 backplane
(54-19354-01) and the BA430 backplane (54-20181-01).
NOTE: It is not necessary to totally remove all option units, subassemblies,
and connector cables from the enclosure, as long as all subassemblies, cable
connectors and modules are disconnected from the backplane.

Label all ISEs with their bus node 1D number to keep the appropriate ID

plug with the correct ISE.

3-66

BA430/BA440 Enclosure Maintenance

The backplane is the only part of the BA430/BA440 enclosure that must
be removed from the rear. To remove the backplane, follow the steps listed
below:
1.

Unlock and open both doors.

Remove the upper door by swinging it out more than 90 degrees and
lifting it off its hinge bracket pins (Figure 3-43).

Remove the lower door by swinging it out more than 90 degrees and
lifting it ofY its hinge bracket pins (Figure 3-43).

Remove the hinge bracket on the left by removing the five self-tapping
screws.

Remove the door-latching bracket on the right by removing the three
self tapping screws and one 6-32 screw. Remove the bracket and the
two remaining self-tapping screws that secure the right side plastic
panel to the sheet metal chassis frame.

Push the outer shell back and lift it off the chassis.

BA430/BA440 FRU Removal and Replacement

3-67

Figure 3-43:

Outer Shell Removal

Door Hinge

Hinge

Bracket Pin
Outer Shell

Upper Door

Lower Door

fi
Bracket

Door-Latching
Bracket

MLO-004222

Remove the power cable from the power supply (Figure 3-38).

Attach the static wrist strap to your wrist and the clip end of the static
strap to the system chassis.

3-68

BA430/BA440 Enclosure Maintenance

9. Remove ISEs, RF- and RZ-series Section 3.3, TLZ-series tape drives

Section 3.4, TK-series tape drives Section 3.5, and the TF-series tape

drives Section 3.6.

10. Disconnect the DSSI and SCSI bus cables (upper left of backplane)
behind the ISE on the far left side (Figure 3—44).
11. Loosen the captive screw from the top of the System Control Panel

(SCP). See Section 3.7. Remove the cable connector from the SCP slot
(Figure 3—44).
Figure 3-44.

SCSI Cable

DSSI Cable

Bus Cable Locations (BA440)

Vterm Module

; m HD m “

SCP

t
mmw C onnector

i *fi
fim::;_é,,j&: ';l/

;

H3604 Power

Connector
MLO-004223

12. Remove the power supply (Figure 3—40). See Section 3.8.
NOTE: If you pull the power supply out completely, lay the power supply
on its side.
13. Label and disconnect all external cables from H3604 or H3602 modules.
14. Loosen the quarter turn screws and swing open the H3604 console
module (BA440 only).
15. Loosen the quarter turn screws on H3602 (BA430 only) and separate
the H3602 from the card cage being careful of the data cable connected
to the H3602.

BA430/BA440 FRU Removal and Replacement

3-69

16. Disconnect the H3604 or H3602 internal cables.
module on an antistatic mat .

Place the console

17. Disconnect the power board for the H3604 from its special backplane

slot (BA440 only).
18. Loosen the two screws securing the fan drawer.

Pull the fan drawer

out.

19. If removing the modules completely, write down the locations of all the

system and option modules and cable connections. Then remove the
modules and the cables.
For more information

Section 3.2.

about removing modules and handles see

20. Remove all of the screws on the rear panel (Figure 3—45).
21. Set the panel aside.

3-70

BAA430/BA440 Enclosure Maintenance

Figure 3-45: Rear Panel Removal (BA430/BA440)

MLO-004224

22. Remove the three nuts from the middle of the backplane (Figure 3—46)

(BA440 only).

23. Remove the three screws from the outside edge of the backplane
(Figure 3—46).
24. Remove the backplane (be careful of the backplane weight).

BA430/BA440 FRU Removal and Replacement

3-71

Figure 3—46:

Removing a Backplane

Philhpwss (3)pd
Scre

Kep

—
Nuts (3)

)
(BA440 Only

L,_,_,d,.;"
.

Py ./ -

Remove Last
Insert First
-

MLO-0042205

3.10.1 Installing a BA430/BA440 Backplane
To install a new backplane into the BA430/BA440 enclosure, complete the
following sequence:
1.

Open the new backplane bag (make sure the antistatic wrist strap 1s
connected to the system chassis).

Align the new backplane assembly with the rear holes of the enclosure.
Insert the two lower screws (left side first) and then the upper left
screw to align the backplane against the card cage (Figure 3-46). For
the BA440 Install the three nuts to the middle studs. Snug the nuts
down hand tight.

Install the metal cover over the backplane using the screws previously
removed, starting with the upper left, but do not tighten screws until
all are installed properly, then tighten all screws.

Remove the static clip from the rear frame and clip it to the front of
the enclosure.

3-72

BA430/BA440 Enclosure Maintenance

Install the DSSI and SCSI bus cables (upper left of backplane) (Figure 3—44).
Slide the fan drawer in and feel the drawer lock into the backplane
connector. Tighten screws.
Install the connector end of the SCP cable to the backplane, and then
reinstall the SCP to the extreme right side if it was removed.

Re-seat all ISKs and tape drives into their original bus slots, and tighten
captive screws.
Connect ISE remote front panel cables and install each front panel (1
screw at the top). Be sure the front panel is attached to the proper ISE
as the bus node 1D plug would be affected.
10. Attach front panel cables, if applicable, then attach the tape drive front

panel (1 screw at the top).
11. Insert the power supply and tighten the captive screws.
12. Insert the power board into its designated slot, between the memory

and the CPU slots (BA440 only).
13. Install the CPU and memory modules.

14. Install the options into their original slots.

Check the list of option

module locations you made when you removed the options.

. Install the H3604 console panel on its hinges. Connect the the cable
from the power board to the H3604 (BA440 only).
16. Connect the data cable from the H3604 to the CPU module (BA440

only).
17. Connect the data cable from the the H3602 to the CPU module (BA430

only).
18. Connect all external cables to their original locations. Check the chart

you made when you removed these cables.

3.10.2 Reinstalling the Outer Shell
To reinstall the outer shell, use the following procedure.
1.

Pull the outer shell over the enclosure and forward to the frame
mounting holes as shown in Figure 3-47.
Install the hinge bracket on the left side with the five screws previously
removed. Do not tighten screws at this time.

BA430/BA440 FRU Removal and Replacement

3-73

NOTE: At this point the screws should be snug enough so that bracket

can move, but not freely.

Install the two screws into holes 2 and 4 on the right side (from the top
of the enclosure chassis) and into the mating holes in the edge of the
sheil (before installing the latch bracket).

Install the latch bracket to the right front edge by installing the
remaining three self-tapping screws and the one 6-32 screw. Insert
the 6-32 screw first. This is the aligning screw. Do not tighten the
screws at this time.

NOTE: At this point the screws should be snug enough so that bracket
can move, but not freely.

Install the upper and lower doors. Position the doors at approximately
90 degrees (half open position) and hook the doors over their respective
hinge bracket pin. The doors should drop into position.

3-74

BAA430/BA440 Enclosure Maintenance

Figure 3-47: Door Installation
m

Door Hinge

Hinge

- Bracket Pin

Quter Shell

Upper Door

Lower Door

{

Hing

/\ /

Bracket
Door-Latching
Bracket

MLO-004222

NOTE: Check and adjust the door hinge bracket and latching bracket

alignment to ensure the door latch is square with the enclosure and door
locking latch clears the door latching bracket.
6.

Tighten all screws.

BA430/BA440 FRU Removal and Replacement

3-75

Reconnect the ac power cable.
Set system Power switch to on (1).

Run the system self-test and diagnostics to establish acceptable system
operation.

10. Close and lock both doors.

3-76

BA430/BA440 Enclosure Maintenance

Appendix A

Related Documentation
The following documents contain information relating to systems and
options supported for a BA430 and BA440 enclosure.
Document Title

Order Number

Module Options
('XA186 Technical Manual

EK-CARB16-TM

CXY08 Technical Manual

EK-CXY08-TM

DESQA Ethernet Adapter Option Installation Guide

EK-DEQNA-IN

DESQA Technical Manual

FK-DEQNA-TM

DPV11 Synchronous Controller Technical Manual

EK--DPV11-TM

DPV11 Synchronous Controller User’s Guide

EK-DPV11-UG

DRV11-J Interface User’s Manual

EK-DRViJ-UG

DRV11 General Purpose DMA User's Guide

EK-DRVWA--UG

ElFxx-Series Solid State Disk User's Guide

EK-EF51x-UG

IBQO1 BITBUS Controller Technical Manual

EK-1BQ01-TM

IBQO1 BITBUS Controller User's Guide

EK-IBQ01-UG

1BQO1 Option Installation Guide

EK-1BQO1-IN

KDA50-Q CPU Module User’s Guide

EK-KDA5Q-UG

KFQSA Installation Guide

EK-KFQSA-IN

KMV 11 Programmable Communications Controller User's

EK-KMV11-UG

1uide

KMV 11 Programmable Communications Controller Technical Manual

EK-KMV1i-TM

KZQSA installation Guide

EK-KZQSA-1G

Microsystems and Options

EK-192AA-MG