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EK-BA42A-IN-004

December 1992

156 pages

Original

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Document:	BA42 Storage Expansion Box Installation Guide
Order Number:	EK-BA42A-IN
Revision:	004
Pages:	156
Original Filename:	http://oldcomputers.dyndns.org/public/pub/manuals/dec_ba42_ori.pdf

OCR Text

EK-BA42A-IN-004

BA42 Storage
Expansion Box
Installation Guide

digital equipment corporation
maynard, massachusetts

Fourth printing, February 1992

The information in this document is subject to change without notice and should
not be construed as a commitment by Digital Equipment Corporation. Digital
Equipment Corporation assumes no responsibility for any errors that may appear
in this document.
The software described in this document is furnished under a license and may be
used or copied only in accordance with the terms of such license.
Digital Equipment Corporation assumes no responsibility for the use or reliability
of its software on equipment that is not supplied by Digital or its affiliated
companies.

U.S.A.
This equipment generates, uses, and may emit radio frequency energy. 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. Operation of this equipment in a residential area may cause
interference in which case the user at his own expense will be required to take
whatever measures may be required to correct the interference.

The following are trademarks of Digital Equipment Corporation:

CompacTape
DEC
DECnet
DECstation
DECsystem
DECUS
MicroVAX

MicroVMS
PDP
ULTRIX
ULTRIX-32
UNIBUS
VAX
VAXBI

VAXcluster
VAXstation
VMS
VT

MS-DOS is a registered trademark of Microsoft Corporation. SCO is a trademark
of Santa Cruz Operations, Inc. UNIX is a trademark of Unix System Laboratories,
Inc.

Contents
Using This Guide

• ••

XIII

1 Installing BA42 Storage Expansion Boxes
Checking Your Shipment
Setting Up Expansion Boxes
Determining Which SCSI ID Numbers Are Available
Setting SCSI ID Switches for Hard Disk Drives
Remove the SCSI ID Switch Cover from the Expansion
Box
Check the SCSI ID Switch Settings on the Expansion
Box
Change the SCSI ID Switch Settings If Necessary
Setting SCSI ID Switches and Jumpers on Floppy Disk,
Tape, and Compact Disc Drives
Remove the Cover from the Expansion Box
Check the SCSI ID Switch or Jumper Settings on the
Drive
Change the SCSI ID Switch or Jumper Settings If
Necessary
Replace the Cover on the Expansion Box
Installing an Expansion Box
Turn Power Off
Remove the Cover or Terminator from the SCSI
Connector on the System Unit
Connect the System-Unit-to-Expansion-Box Cable to the
System Unit
Connect the System-Unit-to-Expansion-Box Cable to the
Expansion Box

1-2
1-3
1-4
1-5
1-5
1-6
1-7

1-8
1-8
1-9
1-9
1-10
1-11
1-11
1-11
1-13
1-14

III

Connect the Terminator
Connect the Power Cord
Connecting One Expansion Box to Another Expansion
Box
Turn Power Off
Remove the Terminator
Connect the Box-to-Box Expansion Cable and
Terminator ,
Connect the Power Cords
Verifying Your System Configuration
Turn Power On
Check the Configuration Display
Using Floppy Disk or Tape Drives

1-15
1-16

1-17
1-17
1-17
1-18
1 -20
1-21
1-21
1-21
1-22

2 Installing a BA42 Storage Expansion Box Upgrade
Checking Your Shipment
Determining Available SCSI ID Numbers
Preparing the Expansion Box
Turn Power Off
Remove the Cover from the Expansion Box
Installing an RZ5x Series Hard Disk Drive
Attach the Internal Cables to the Drive
If Your Expansion Box Contains an RZ25 Hard Disk
Drive, Attach the 6-Pin SCSI ID Switch Cable
Insert the Drive into the Expansion Box
Tighten the Captive Screw
Installing an RZ25 Hard Disk Drive
Remove the 24-Pin SCSI ID Switch Cable from the
Expansion Box..
Attach the 6-pin SCSI ID Switch Cable That Came with
the RZ25 Hard Disk Drive
Attach the Internal Cables to the Drive
Insert the Drive into the Expansion Box
Tighten the Captive Screw
Replace the Cover on the Expansion Box
Check the SCSI ID Switch Settings on the Expansion
Box
Change the SCSI ID Switch Settings If Necessary
Installing a Floppy Disk, Tape, or Compact Disc Drive . . . .
Check the SCSI ID Switch or Jumper Settings on the
Drive
Change the SCSI ID Switch or Jumper Settings If
Necessary

2-2
2-3
2-4
2-4
2-4
2-6
2-6
2-7
2-8
2-9
2-10
2-11
2-12
2-13
2-15
2-16
2-17

2-18
2-20
2-21
2-21
2-21

Connect the Internal Cables
Insert the Drive into the Expansion Box
Tighten the Captive Screw
Remove the Blank Panel from the Front of the
Expansion Box Cover
Install the Open Bezel Insert on the Front of the
Expansion Box Cover
Replace the Cover on the Expansion Box
Verifying Your System Configuration
Turn Power On
Check the Configuration Display
Using Floppy Disk or Tape Drives

2-22
2-23
2-24
2-25
2-26
2-27
2-28
2-28
2-28
2-29

A Equipment Specifications
BA42 Storage Expansion Box Equipment Specifications ....
RZ25 SCSI Hard Disk Drive Equipment Specifications . . . .
RZ55 SCSI Hard Disk Drive Equipment Specifications ....
RZ56 SCSI Hard Disk Drive Equipment Specifications . . . .
RZ57 SCSI Hard Disk Drive Equipment Specifications
RZ58 SCSI Hard Disk Drive Equipment Specifications . . . .
TZ30 Tape Drive Equipment Specifications
TZK10 QIC Tape Drive Equipment Specifications
RX23 Diskette Drive Equipment Specifications
RX33 Diskette Drive Equipment Specifications

A-2
A-3
A-5
A-7
A-9
A-l 1
A-13
A-15
A-17
A-19

B BA42 Configurations and Part Numbers
C TZ30 Tape Drive
Setting the SCSI ID Switches
Attaching the Internal Expansion Box Cables to a Drive .. .
Using a TZ30 Tape Drive
TZ30 Tape Cartridge
External Controls and Indicators
Write-Protecting a Tape Cartridge
Write-Enabling a Tape Cartridge
Inserting a Tape Cartridge into a Drive
Removing a Tape Cartridge from a Drive
Handling and Storing Tape Cartridges

C-2
C-4
C-5
C-5
C-6
C-8
C-9
C-10
C-l 3
C-14

D RX23 Floppy Disk Drive
Setting the SCSI ID Switches
Attaching the Internal Expansion Box Cables to a Drive . . .
Using an RX23 Floppy Disk Drive
RX23 Floppy Diskette
External Controls and Indicators
Write-Protecting a Floppy Diskette
Write-Enabling a Floppy Diskette
Inserting a Floppy Diskette into a Drive
Removing a Floppy Diskette from a Drive
Handling and Storing Floppy Diskettes

D-2
D-4
D-5
D-5
D-6
D-7
D-8
D-9
D-l 1
D-l2

E RX33 Floppy Disk Drive
Setting the SCSI ID Switches
Attaching the Internal Expansion Box Cables to a Drive .. .
Using an RX33 Floppy Disk Drive
RX33 Floppy Diskette
External Controls and Indicators
Write-Protecting a Floppy Diskette
Write-Enabling a Floppy Diskette
Inserting a Floppy Diskette into a Drive
Removing a Floppy Diskette from a Drive
Handling and Storing Floppy Diskettes
Formatting RX33 Floppy Diskettes
Using VMS
Using ULTRIX Version 4.1 or Higher
Using Versions of ULTRIX Prior to ULTRIX Version
4.1

E-2
E-4
E-5
E-5
E-6
E-7
E-7
E-8
E-9
E-10
E-l 1
E-l 1
E-l 1
E-13

F TZK10 QIC Tape Drive
Setting the SCSI ID Jumpers
Attaching the Internal Expansion Box Cables to a Drive . . .
Using a TZK10 QIC Tape Drive
TZK10 QIC Tape Cartridge
External Controls and Indicators
Write-Protecting or Write-Enabling a Tape Cartridge . . .
Inserting a Tape Cartridge into a Drive
Removing a Tape Cartridge from a Drive
Handling and Storing Tape Cartridges

F-2
F-4
F-5
F-5
F-6
F-7
F-8
F-10
F-12

G RRD42 Compact Disc Drive
Setting the Mode Select and SCSI ID Jumpers
Attaching the Internal Expansion Box Cables to a Drive ...
Using an RRD42 Compact Disc
Inserting a Compact Disc into a Caddy
Removing a Compact Disc from a Caddy
Using an RRD42 Compact Disc Drive
External Controls and Indicators
Inserting a Disc Caddy into a Drive
Removing a Disc Caddy from a Drive
Handling and Storing Compact Discs

G-2
G-4
G-6
G-7
G-10
G-l 1
G-l1
G-l2
G-l4
G-15

Figures
1 -1

The parts of a BA42 expansion box shipment

1-2

1 -2

On/off switch in the off position

1-3

1 -3
1-4

Removing the SCSI ID switch cover from the expansion
box
SCSI ID switches for hard disk drives

1-5
1-6

1-5

Removing the cover from the expansion box

1-8

1-6
1 -7
1-8
1-9

Replacing the cover on the expansion box
Removing the SCSI connector cover from the system unit...
Removing the SCSI terminator from the system unit
Connecting a system-unit-to-expansion-box cable to the

1-10
1-11
1-12
1-13

1-11
1-12

system unit
Connecting a system-unit-to-expansion-box cable to the
expansion box
Connecting a terminator to the expansion box
Connecting a power cord to an expansion box

1-13
1-14

Removing a terminator from an expansion box
1-17
Connecting thebox—to— box cable and terminator to the fina

1-10

1-15
2-1
2-2
2-3
2-4
2-5

1-14
1-15
1-16

expansion box

1-19

Connecting power cords to expansion boxes
Removing the cover from the expansion box
Inside the BA42 expansion box
Attaching the internal cables to an RZ5x Series hard disk

1 -20
2-4
2-5

drive

2-6

Attaching a 6-pin SCSI ID switch cable to an RZ5x Series
hard disk drive

2-7

Inserting the RZ5x Series hard disk drive in the expansion
box

2-8
vii

2-6
2-7
2-8

Tightening the captive screw on the drive
6-pin and 24-pin SCSI ID switch cables
Disconnecting the 24-pin SCSI ID switch cable from the
expansion box
2-9
Attaching the 6-pin SCSI ID switch cable to the expansion
box
2-10 Attaching the internal SCSI signal and power cables to an
RZ25 hard disk drive
2-11 Attaching the internal 6-pin SCSI ID switch cable to an
RZ25 hard disk drive
2-12 Inserting an RZ25 hard disk drive in the expansion box . . . .
2-13 Tightening the captive screw on the drive
2-14 Replacing the cover on the BA42 expansion box
2-15 SCSI ID switches for hard disk drives
2-16 Inserting the drive in the expansion box
2-17 Tightening the captive screw
2-18 Removing the blank panel from the front of the expansion
box cover
2-19 Installing the open bezel insert on the front of the expansion
box cover
2-20 Replacing the cover on the expansion box
C-l
SCSI ID switches on the TZ30 tape drive
C-2 Attaching the internal expansion box cables to a TZ30 tape
drive
C-3 A TZ30 tape cartridge
C-4 External controls and indicator lights on the TZ30 tape
drive
..
C-5 Write-protecting a TZ30 tape cartridge
C-6 Write-enabling a TZ30 tape cartridge
C-7 Opening the door on a cartridge
C-8 A tape leader positioned correctly in a cartridge
C-9 Inserting a tape cartridge into a TZ30 tape drive
C-10 Removing a tape cartridge from a TZ30 tape drive
D-l
SCSI ID switches on the RX23 floppy disk drive
D-2 Attaching the internal expansion box cables to an RX23
floppy disk drive
D-3 An RX23 floppy diskette
D-4
External controls and indicators on the RX23 floppy disk
drive
D-5 Write-protecting an RX23 floppy diskette

viii

2-9
2-10
2-11
2-12

2-13
2-14
2-15
2-16
2-17
2-19
2-23
2-24
2-25
2-26
2-27
C-3
C-4
C-5
C-6
C-8
C-9
C-10
C-l 1
C-l2
C-13
D-3
D-4
D-5
D-6
D-7

D-6
D-7
D-8

Write-enabling an RX23 floppy diskette
Inserting a floppy diskette into an RX23 floppy disk drive...
A floppy diskette positioned correctly in an RX23 floppy disk
drive
D-9 Removing a floppy diskette from an RX23 floppy disk
drive
E-l
SCSI ID switches on the RX33 floppy disk drive
E-2
Attaching the internal expansion box cables to an RX33
floppy disk drive
E-3
An RX33 floppy diskette
E-4
External controls and indicators on the RX33 floppy disk
drive
E-5
Write-protecting an RX33 floppy diskette
E-6
Inserting a floppy diskette into an RX33 floppy disk drive. ..
E-7
Removing a floppy diskette from an RX33 floppy disk
drive
F-l
SCSI ID jumpers on the TZK10 QIC tape drive
F-2
Attaching the internal expansion box cables to a TZK10 QIC
tape drive
F-3
A TZK10 QIC tape cartridge
F-4
External controls and indicators on the TZK10 tape drive . . .
F-5
Write-protect and write-enable switch positions on a TZK10
QIC tape cartridge
F-6
Inserting a tape cartridge into the TZK10 QIC tape drive .. .
F-7
Closing the drive door on the TZK10 QIC tape drive
F-8
Removing a tape cartridge from the TZK10 QIC tape
drive
G-1 Mode select and SCSI ID jumpers on the RRD42 compact
disc drive
G-2 The SCSI signal cable connector and key
G-3 Attaching the internal expansion box cables to an RRD42
compact disc drive
G-4 An RRD42 compact disc
G-5 Removing the protective film from a compact disc caddy . . . .
G-6 Opening a compact disc caddy
G-7 Inserting a disc into a compact disc caddy
G-8 External controls and indicators on the RRD42 compact disc
drive
G-9 Inserting a compact disc caddy into an RRD42 compact disc
drive
G-10 Pushing a caddy into an RRD42 compact disc drive

D-8
D-9
D-10
D-l 1
E-3
E-4
E-5
E-6
E-7
E-8
E-9
F-3
F-4
F-5
F-6
F-7
F-8
F-9
F-l 1
G-3
G-4
G-5
G-6
G-7
G-8
G-9
G-l 1
G-l 2
G-l 3
Ix

G-l 1 Removing a compact disc caddy from an RRD42 compact disc
drive

G—14

Tables
1 -1
2-1
A-1
A-2
A-3
A-4
A-5
A-6
A-7
A-8
A-9
A-10
A-11
A-12
A-13
A-14
A-15
A-l 6
A-l 7
A-l 8
A-19
A-20
A-21
A-22
A-23
A-24
A-25
A-26
A-2 7
A-28
A-29
A-30

SCSI ID Numbers and Switch Settings for Hard Disk
Drives
SCSI ID Numbers and Switch Settings for Hard Disk
Drives
BA42 Storage Expansion Box Description
BA42 Storage Expansion Box Operating Conditions
BA42 Storage Expansion Box Nonoperating Conditions
RZ25 SCSI Hard Disk Drive Description
RZ25 SCSI Hard Disk Drive Operating Conditions
RZ25 SCSI Hard Disk Drive Nonoperating Conditions
RZ55 SCSI Hard Disk Drive Description
RZ55 SCSI Hard Disk Drive Operating Conditions
RZ55 SCSI Hard Disk Drive Nonoperating Conditions
RZ56 SCSI Hard Disk Drive Description
RZ56 SCSI Hard Disk Drive Operating Conditions
RZ56 SCSI Hard Disk Drive Nonoperating Conditions
RZ57 SCSI Hard Disk Drive Description
RZ57 SCSI Hard Disk Drive Operating Conditions
RZ57 SCSI Hard Disk Drive Nonoperating Conditions
RZ58 SCSI Hard Disk Drive Description
RZ58 SCSI Hard Disk Drive Operating Conditions
RZ58 SCSI Hard Disk Drive Nonoperating Conditions
TZ30 Tape Drive Description
TZ30 Tape Drive Operating Conditions
TZ30 Tape Drive Nonoperating Conditions
TZK10 QIC Tape Drive Description
TZK10 QIC Tape Drive Operating Conditions
TZK10 QIC Tape Drive Nonoperating Conditions
RX23 Diskette Drive Description
RX23 Diskette Drive Operating Conditions
RX23 Diskette Drive Nonoperating Conditions
RX33 Diskette Drive Description
,
RX33 Diskette Drive Operating Conditions
RX33 Diskette Drive Nonoperating Conditions

1-7
2-20
A-2
A-2
A-2
A-3
A-3
A-4
A-5
A-6
A-6
A-7
A-7
A-8
A-9
A-9
A-10
A-l 1
A-l 1
A-12
A-13
A-13
A-14
A-15
A-15
A-16
A-17
A-18
A-18
A-19
A-20
A-20

B-1
C-1
C-2
D-l
E-1
F-1
F-2
G-1

BA42 Storage Expansion Box Configurations
SCSI ID Switch Settings for the TZ30 Tape Drive
Indicator Lights on the TZ30 Tape Drive
SCSI ID Switch Settings for the RX23 Floppy Disk Drive ...
SCSI ID Switch Settings for the RX33 Floppy Disk Drive ...
SCSI ID Jumper Settings for the TZK10 QIC Tape Drive . . .
Indicator Light on the TZK10 QIC Tape Drive
SCSI ID Jumper Settings for the RRD42 Compact Disc
Drive

B-l
C-2
C-7
D-2
E-2
F-2
F-6

Using This Guide
Use this guide to install one or more BA42 expansion boxes,
to add a drive to a BA42 expansion box, and to verify that
SCSI (small computer systems interface) switches have been set
correctly for each drive in a BA42 expansion box.
This guide tells you
• How to install one or more expansion boxes
• How to install new drives inside BA42 expansion boxes
• How to make sure the drives inside a BA42 expansion box
are recognized by your system and what to do if they aren't
• How to use your floppy disk, tape, or compact disc drive
• What combinations of the Digital-supplied drives can be
present in BA42 expansion boxes connected to a SCSI
connector on your system unit
• What the equipment specifications are for the BA42
expansion box and for the Digital-supplied drives available
for use in it
• What the part numbers are for the components of the BA42
expansion box and of the Digital-supplied drives available
for use in it

xiil

Installing BA42 Storage Expansion Boxes
This chapter tells you how to
• Check your shipment to make sure nothing is broken or
missing
• Set up a BA42 expansion box
• Select SCSI ID numbers and set SCSI ID switches for
Digital-supplied hard disk, floppy disk, tape, and compact
disc drives installed in BA42 expansion boxes
• Attach an expansion box to your system unit
• Attach one expansion box to another expansion box
• Make sure the system recognizes the drive or drives inside
an expansion box
Since the BA42 storage expansion box uses drive configuration
part numbers beginning with SZ12, the box is also often
referred to as the SZ12 storage expansion box.

Installing BA42 Storage Expansion Boxes

1-1

Checking Your Shipment
When you unpack the carton that contains a BA42 expansion
box, you should find all of the items shown in Figure 1-1.
In addition, if you have a floppy disk drive preinstalled in your
expansion box, you should also receive two floppy diskettes. If
you have a tape drive preinstalled, you should receive one tape
cartridge. If you have a compact disc drive, you should receive
one compact disc and cartridge.

Documentation

Expansion box

Box-to-box expansion cable

SCSI terminator

System-unit-toexpansion-box cable

Power cord
WSEBAI01

Figure 1-1. The parts of a BA42 expansion box shipment

1-2 Installing BA42 Storage Expansion Boxes

Setting Up Expansion Boxes
Warning: It takes two people to unpack and set up a BA42 expansion
box safely.
Caution: Standing an expansion box on its side blocks vents and can
damage the expansion box and any drives it contains.

Set up your BA42 expansion box on a flat surface as near
as possible to your system unit. If you are installing more
than one expansion box, you can stack the boxes on top of one
another.
Make sure the on/off switch on the expansion box is in the off
position.
On/off switch in
the off position

WSEBAI02

Figure 1 -2.

On/off switch in the off position

Installing BA42 Storage Expansion Boxes

1-3

Determining Which SCSI ID Numbers Are Available
You can connect up to seven SCSI drives to a given SCSI
connector on the system unit.
You must assign a SCSI ID number to each drive installed in
a BA42 expansion box. Numbers that can be used range from
0 to 7, and you can assign each number only once. To find out
what SCSI ID numbers are available, see the option installation
instructions in the installation guide or user's guide for your
system.
To set SCSI ID switches for hard disk drives, turn to page 1-5.

To set SCSI ID switches for floppy disk, tape, or compact disc
drives, turn to page 1-8.

1-4 Installing BA42 Storage Expansion Boxes

Setting SCSI ID Switches for Hard Disk Drives
SCSI ID switches for hard disk drives installed in a BA42
expansion box are located on the back of the expansion box.
If you have one or two hard disk drives preinstalled in your
expansion box, check the SCSI ID switch settings for each drive
and change the settings if necessary.
Remove the SCSI ID Switch Cover from the Expansion Box
Press the bottom of
cover. Then lift the
cover away from the box.

SCSI switch cover

WSEBAM25

Figure 1 -3.

Removing the SCSI ID switch cover from the expansion box

Installing BA42 Storage Expansion Boxes

1-5

Check the SCSI ID Switch Settings on the Expansion Box
If you have one hard disk drive installed in your expansion
box, the right three SCSI ID switches on the back of the box
determine the SCSI ID switch setting for that drive. These
switches are preset to ID number 0, down down down.
If you have two hard disk drives installed in your expansion
box, the left three SCSI ID switches on the back of the box
determine the SCSI ID switch setting for the second hard disk
drive. These switches are preset to ID number 1, down down
up.
SCSI ID switches set for 10 numbers
1 (down down up) on the left and
0 (down down down) on the right.

WSEBAI06

Figure 1-4. SCSI ID switches for hard disk drives

1-6 Installing BA42 Storage Expansion Boxes

Change the SCSI ID Switch Settings If Necessary
If the switches on your expansion box are set for a SCSI ID
number that is not available for use, use a pen or small pointed
object to flip the switches you need to change.
Table 1-1 shows the SCSI ID switch settings for hard disk
drives.
Table 1-1. SCSI ID Numbers and Switch Settings for Hard Disk Drives
Switch Settings

SCSI ID
Number

Switch 1

Switch 2

Switch 3

0
1
2
3
4
5
6
7

Down
Down
Down
Down
Up
Up
Up
Up

Down
Down
Up
Up
Down
Down
Up
Up

Down
Up
Down
Up
Down
Up
Down
Up

Tb attach the expansion box to your system unit, turn to
page 1-11.

Installing BA42 Storage Expansion Boxes

1-7

Setting SCSI ID Switches and Jumpers on Floppy Disk, Tape,
and Compact Disc Drives
SCSI ID switches and jumpers for floppy disk, tape, and
compact disc drives are located directly on the drives. If you
have one of these types of drives installed in your BA42 box,
use the switches or jumpers on the drive itself instead of the
switches on the expansion box.
SCSI ID switches and jumpers on floppy disk and tape drives
are preset to ID number 5. SCSI ID jumpers on compact disc
drives are preset to ID number 4.
lb check the SCSI ID switch or jumper settings on the drive,
you will need to remove the cover from the expansion box.
Remove the Cover from the Expansion Box
Loosen the two cover-release screws on the back of the
expansion box. Grasp each side of the cover and pull it toward
you. Then pull the cover up and away from the box.

Cover-release screws
WSEBAI20

Figure 1 -5.

Removing the cover from the expansion box

1-8 Installing BA42 Storage Expansion Boxes

Check the SCSI ID Switch or Jumper Settings on the Drive
See the following appendixes for SCSI ID switch and jumper
locations and settings for the various drives:
• TZ30 tape drive-Appendix C
• RX23 floppy disk drive—Appendix D
• RX33 floppy disk drive—Appendix E
• TZK10 QIC tape drive-Appendix F
• RRD42 compact disc drive—Appendix G
Change the SCSI ID Switch or Jumper Settings If Necessary
If the switches or jumpers on the drive are set to a SCSI ID
number that is not available for use, use a pen or small pointed
object to flip the switches you need to change, or use a small
set of needle-nose pliers to remove and replace the jumpers you
need to change.

Installing BA42 Storage Expansion Boxes 1-9

Replace the Cover on the Expansion Box
Position the cover so it rests on top of the box about 3 inches
short of the back of the box. Move the cover straight toward
the back of the box until it slips into place. Tighten the two
cover-release screws on the back of the box.
Caution: Make sure the internal cables are pushed down into the
box before replacing the cover. Closing the cover on the cables may
damage the cables.

Cover-release screws
WSEBAI19

Figure 1-6. Replacing the cover on the expansion box

1-10 Installing BA42 Storage Expansion Boxes

Installing an Expansion Box
If you are adding an expansion box to a system that already has
one or more expansion boxes fully installed, turn to page 1-17
for instructions on how to connect one expansion box to another.
Tlirn Power Off

TVirn off power to the monitor and then the system unit.
Remove the Cover or Terminator from the SCSI Connector on
the System Unit

If there is a cover over the SCSI connector on the back of your
system unit, remove it.
Press up on the
tab on the bottom
of the cover until
you can pull the
cover away from
the box.

System unit
SCSI connector

SCSI cover slot

WSEBA08

Figure 1 -7.

Removing the SCSI connector cover from the system unit

Installing BA42 Storage Expansion Boxes

1-11

If there is a terminator on the SCSI connector on the back of
your system unit, remove it.
System unit
SCSI connector

SCSI terminator

WSEBAI37

Figure 1 -8.

Removing the SCSI terminator from the system unit

1-12 Installing BA42 Storage Expansion Boxes

Connect the System-Unit-to-Expansion-Box Cable to the
System Unit
Important: If you have a DEC station 5000 Model 200 workstation,
use the system-unit-to-expansion-box cable that came with your
workstation. Otherwise, use the system-unit-to-expansion-box cable
that came with your expansion box.

System-unit-to-expansion-box
cable connector

System unit
SCSI connector

WSEBAI09

Figure 1 -9. Connecting a system-unit-to-expansion-box cable to the
system unit

Installing BA42 Storage Expansion Boxes

1-13

Connect the System-Unit-to-Expansion-Box Cable to the
Expansion Box
Connect the free end of the system-unit-to-expansion-box cable
to one of the connectors on the expansion box.
If you are installing more than one expansion box, turn to
page 1-18 after you connect the system-unit-to-expansion-box
cable to the first expansion box.
If you are installing only one box, turn to page 1-15 to connect
the terminator.
Be sure the wire brackets
are locked into the grooves
on the sides of the connector.

System-unit-to-expansion-box
cable connector

WSEBAI28

Figure 1-10. Connecting a system-unit-to-expansion-box cable to the
expansion box.

1-14

Installing BA42 Storage Expansion Boxes

Connect the Terminator
Connect the terminator to the empty connector on the
expansion box.
Be sure the wire brackets
are locked into the grooves
on the sides of the connectors.

WSEBAI29

Figure 1-11. Connecting a terminator to the expansion box

Installing BA42 Storage Expansion Boxes

Connect the Power Cord
Connect the prongless end of the power cord to the expansion
box and plug the pronged end into a power outlet or power
strip.
After connecting the power cord, turn to page 1-21 to verify
your system configuration.
Note: Digital suggests that all power cords for the system be plugged
into a single source of power, such as a power strip.

Power cord

W3EBAI04

Figure 1-12. Connecting a power cord to an expansion box

1-16

Installing BA42 Storage Expansion Boxes

Connecting One Expansion Box to Another Expansion Box
If you are attaching an expansion box to a system, that
already has one or more expansion boxes fully installed, do
the following.
Tlirn Power Off

Turn off power to the expansion boxes and then the system
unit.
Remove the Terminator

Remove the terminator from the last expansion box attached
to that SCSI connector on the system unit by unlocking the
wire brackets from the sides of the terminator and pulling the
terminator out of the connector.
Wire brackets

Terminator

WSEBAI24

Figure 1-13. Removing a terminator from an expansion box

Installing BA42 Storage Expansion Boxes

1-17

Connect the Box-to-Box Expansion Cable and Terminator
Connect the box-to-box expansion cable to the empty connector
on the last box connected to your system unit. Then connect the
other end of the cable to one of the connectors on the box you
are installing.
If you are installing more than one additional BA42 expansion
box, repeat these steps for each box.
Note: You may connect up to three BA42 expansion boxes to your
system unit.

Connect the terminator to the empty connector on the final
expansion box.
Figure 1-14 shows how to connect the box-to-box expansion
cable and the terminator.

1-18

Installing BA42 Storage Expansion Boxes

Wire brackets

Box-to-box
cable connector

WSEBAI05

Figure 1-14. Connecting the box-to-box cable and terminator to the
final expansion box

Installing BA42 Storage Expansion Boxes

1-19

Connect the Power Cords
Connect the prongless end of a power cord to each expansion
box and plug the pronged end of each cord into a power outlet
or power strip.
Note: Digital suggests that all power cords for the system be plugged
into a single source of power, such as a power strip.

Power cord

WSEBAI23

Figure 1-15. Connecting power cords to expansion

1-20

Installing BA42 Storage Expansion Boxes

Verifying Your System Configuration
TUrn Power On

T\irn on power to all expansion boxes and then the system unit.
Check the Configuration Display
The configuration display for your system tells you whether the
system recognizes the drives in your expansion boxes.
Tb display and read your system configuration, follow the
instructions provided in the hardware installation guide or
user's guide that came with your system.
If an expansion box drive does not appear in the configuration
display, follow this procedure:
1. Press the 1 on the on/off switch on the expansion box to be
sure the switch is securely in the on position.
2. Turn off your system unit and expansion boxes.
3. Be sure all expansion box cables are connected securely.
4. Be sure all power cords are connected securely.
5. Be sure the SCSI terminator is attached securely to the
expansion box.
6. Be sure the internal cables are connected securely to the
drive.
7. Check the expansion box cable connector for damaged pins.
8. Check the SCSI ID switch settings.
9. Turn on all expansion boxes and the system unit; then
check the configuration display again.
10. If the configuration display still does not show the drives in
the expansion box, contact your system manager or Digital
service representative.
Once SCSI ID switch settings for the hard disk drives installed
in your expansion box are recognized by your system, replace
the cover on the SCSI ID switches on the back of your
expansion box by inserting the notch on the bottom of the
cover into the opening below the switches on the back of the
expansion box, and snapping the cover into place.
Installing BA42 Storage Expansion Boxes

1-21

Using Floppy Disk or Tape Drives
For instructions on how to use floppy disk, tape, or compact disc
drives, see the following appendixes:
• TZ30 tape drives—Appendix C
• RX23 floppy disk drives—Appendix D
• RX33 floppy disk drives-Appendix E
• TZK10 QIC tape drive-Appendix F
• RRD42 compact disc drive—Appendix G

1-22

Installing BA42 Storage Expansion Boxes

Installing a BA42 Storage Expansion Box
Upgrade
This chapter tells you how to
• Check your shipment to make sure nothing is broken or
missing
• Select SCSI ID numbers and set SCSI ID switches or
jumpers for Digital-supplied hard disk, floppy disk, tape,
and compact disc drives you plan to install
• Install a hard disk, floppy disk, tape, or compact disc drive
inside an expansion box
• Make sure the drives inside the expansion box are
recognized by your system, and what to do if they aren't

Installing a BA42 Storage Expansion Box Upgrade 2-1

Checking Your Shipment
Important: In addition to the items that make up your shipment, you
will need a Phillips screwdriver and a standard screwdriver.

If you ordered an RZ5x Series hard disk drive, your shipment
should include:
• The drive
• The document you are now reading
If you ordered an RZ25 hard disk drive, your shipment should
include:
• The drive
. A SCSI ID switch cable
• The document you are now reading
If you ordered a floppy disk, tape, or compact disc drive, your
shipment should include:
•

The drive

•
•

An open bezel
Two floppy diskettes, one tape cartridge, or one compact
disc and cartridge
The document you are now reading

•

If any item is broken or missing, contact your system manager
or Digital service representative.

2-2

Installing a BA42 Storage Expansion Box Upgrade

Determining Available SCSI ID Numbers
You can connect up to seven SCSI drives to a given SCSI
connector on the system unit.
You must assign a SCSI ID number to each drive installed in a
BA42 expansion box. Numbers that can be used range from 0
to 7. You can assign each number only once. Ib find out what
SCSI ID numbers are available, see the option installation
instructions in the installation guide or user's guide for your
system.

Installing a BA42 Storage Expansion Box Upgrade 2-3

Preparing the Expansion Box
Turn Power Off
Turn off power to all expansion boxes and then the system unit.
Remove the Cover from the Expansion Box
Loosen the two cover-release screws on the back of the
expansion box. Grasp each side of the cover and pull it toward
you. Then pull the cover up and away from the box.

Cover-release screws
WSEBAI20

Figure 2-1. Removing the cover from the expansion box

2-4 Installing a BA42 Storage Expansion Box Upgrade

Figure 2-2 shows the internal SCSI signal cable, SCSI ID
switch cable, power cable, and power supply inside the BA42
expansion box.
Power supply

SCSI signal cable

SCSI ID switch cable

Power cable
WSEBAI22

Figure 2-2. Inside the BA42 expansion box

To install an RZ5x Series hard disk drive, turn to page 2-6.
To install an RZ25 hard disk drive, turn to page 2-10.
To install a floppy disk, tape, or compact disc drive, turn to
page 2-21.

Installing a BA42 Storage Expansion Box Upgrade 2-5

Installing an RZSx Series Hard Disk Drive
You can install an RZSx Series hard disk drive in either drive
location in a BA42 expansion box.
Attach the Internal Cables to the Drive

Attach the internal SCSI signal cable, SCSI ID switch cable,
and power cable to the drive.
Attach the connector in the middle of the SCSI ID switch cable
to a hard disk drive you are installing in the position furthest
from the power supply. Attach the connector on the end of the
SCSI ID switch cable to a hard disk drive you are installing in
the position next to the power supply.
If your BA42 expansion box contains an RZ25 hard disk drive,
the SCSI ID switch cable is different than the one shown in the
figure below. Turn to page 2-7 to attach the type of cable that
connects to an RZ25 drive.

SCSI ID
switch cable

Power cable

SCSI signal cable

WSEBAI25

Figure 2-3. Attaching the internal cables to an RZSx Series hard disk
drive

2-6 Installing a BA42 Storage Expansion Box Upgrade

If Your Expansion Box Contains an RZ25 Hard Disk Drive,
Attach the 6-Pin SCSI ID Switch Cable
If your BA42 expansion box has an RZ25 hard disk drive
installed, the SCSI ID cable has 6-pin connectors rather than
24-pin connectors.
To attach a 6-pin SCSI ID switch cable to an RZ5x hard disk
drive, position the cable connector with the silver dot facing
upward and attach it to the three rightmost sets of pins in the
connector on the drive.
Attach the cable to these
three sets of pins.

WSEBAI84

Figure 2-4. Attaching a 6-pin SCSI ID switch cable to an RZ5x Series

hard disk drive

Installing a BA42 Storage Expansion Box Upgrade 2-7

Insert the Drive into the Expansion Box
Tilt the drive until you can place the metal tabs on the bottom
of the drive into the openings in the floor of the box.

WSEBAI26

Figure 2-5. Inserting the RZSx Series hard disk drive in the expansion
box

2-6 Installing a BA42 Storage Expansion Box Upgrade

Tighten the Captive Screw
Tighten the captive screw to hold the drive in place.

WSEBAB7

Figure 2-6. Tightening the captive screw on the drive

To finish installing the drive, see "Replace the Cover on the
Expansion Box" on page 2-17 for directions.

Installing a BA42 Storage Expansion Box Upgrade 2-9

Installing an RZ25 Hard Disk Drive
You can install an RZ25 hard disk drive in either drive location
in a BA42 expansion box.
If there is not already a 6-pin SCSI ID switch cable in your
expansion box, you will need to remove the 24-pin SCSI ID
switch cable from the box and replace it with the 6-pin SCSI ID
switch cable that came with the RZ25 drive you are installing.
The 24-pin SCSI ID switch cable is used with RZ5x Series
drives only. The 6-pin SCSI ID switch cable is used with both
RZ5x series drives and the RZ25.
Silver dot
must face up

24-pin SCSI ID
switch cable

Six-pin SCSI
ID switch cable
WSEBAM31

Figure 2-7. 6-pin and 24-pin SCSI ID switch cables

2-10 Installing a BA42 Storage Expansion Box Upgrade

Remove the 24-Pin SCSI ID Switch Cable from the Expansion
Box
Disconnect the 24-pin SCSI ID switch cable from any drive
that may already be installed in your expansion box. Then
disconnect the cable from the connector on the expansion box.

WSEBAI85

Figure 2-8. Disconnecting the 24-pin SCSI ID switch cable from the
expansion box

Installing a BA42 Storage Expansion Box Upgrade 2-11

Attach the 6-pin SCSI ID Switch Cable That Came with the
RZ25 Hard Disk Drive
Attach the 6-pin SCSI ID switch cable that came with the RZ25
hard disk drive to the expansion box. If there is an RZ5x Series
hard disk drive in the position closest to the power supply, see
Figure 2-4 to attach the 6-pin cable to the drive.

WSEBAI86

Figure 2-9. Attaching the 6-pin SCSI ID switch cable to the expansion
box

2-12 Installing a BA42 Storage Expansion Box Upgrade

Attach the Internal Cables to the Drive
Attach the internal SCSI signal cable and power cable to the
drive. Then attach the 6-pin SCSI ID switch cable. When
attaching the SCSI ID switch cable, make sure the silver dot on
the cable connector is facing upward.
Attach the connector in the middle of the SCSI ID switch cable
to a hard disk drive you are installing in the position furthest
from the power supply. Attach the connector on the end of the
SCSI ID switch cable to a hard disk drive you are installing in
the position next to the power supply.

Power cable

SCSI signal cable

WSEBAI79

Figure 2-10. Attaching the internal SCSI signal and power cables to an
RZ25 hard disk drive

Installing a BA42 Storage Expansion Box Upgrade 2-13

WSEBAI89

Figure 2-11

Attaching the internal 6-pin SCSI ID switch cable to an
RZ25 hard disk drive

2-14 Installing a BA42 Storage Expansion Box Upgrade

Insert the Drive into the Expansion Box
Tilt the drive until you can place the metal tabs on the bottom
of the drive into the openings in the floor of the box.

WSEBAI87

Figure 2-12. Inserting an RZ25 hard disk drive in the expansion box

Installing a BA42 Storage Expansion Box Upgrade 2-15

Tighten the Captive Screw
Tighten the captive screw to hold the drive in place

WSEBAI88

Figure 2-13. Tightening the captive screw on the drive

2-16

Installing a BA42 Storage Expansion Box Upgrade

Cover-release screws
WSEBAI19

Figure 2-14. Replacing the cover on the BA42 expansion box

Installing a BA42 Storage Expansion Box Upgrade 2-17

Check the SCSI ID Switch Settings on the Expansion Box
SCSI ID switches for hard disk drives installed in the BA42
expansion box are located on the back of the box.
If you have one hard disk drive installed in your expansion
box, the right three SCSI ID switches on the back of the box
determine the SCSI ID switch setting for that drive. These
switches are preset to ID number 0, down down down.
If you have two hard disk drives installed in your expansion
box, the left three SCSI ID switches on the back of the box
determine the SCSI ID switch setting for the second hard disk
drive. These switches are preset to ID number 1, down down
up.
If there is a SCSI ID switch cover over the switches on your
expansion box, turn to page 1-5 for instructions on how to
remove the cover.

2-18 Installing a BA42 Storage Expansion Box Upgrade

SCSI ID switches set for ID numbers
1 (down down up) on the left and
0 (down down down) on the right.

WSEBAI06

Figure 2-15. SCSI ID switches for hard disk drives

Installing a BA42 Storage Expansion Box Upgrade 2-19

Change the SCSI ID Switch Settings If Necessary
If the switches on your expansion box are set for a SCSI ID
number that is not available for use, use a pen or small pointed
object to flip the switches you need to change.
Table 2-1 shows the SCSI ID switch settings for hard disk
drives.
Table 2-1. SCSI ID Numbers and Switch Settings for Hard Disk Drives
Switch Settings

SCSI ID
Number

Switch 1

Switch 2

Switch 3

0
1
2
3
4
5
6
7

Down
Down
Down
Down
Up
Up
Up
Up

Down
Down
Up
Up
Down
Down
Up
Up

Down
Up
Down
Up
Down

Up
Down
Up

Turn to page 2-28 to verify your system configuration.

2-20 Installing a BA42 Storage Expansion Box Upgrade

Installing a Floppy Disk, Tape, or Compact Disc Drive
Install a floppy disk, tape, or compact disc drive in the position
furthest from the power supply.
Check the SCSI ID Switch or Jumper Settings on the Drive
SCSI ID switches and jumpers for floppy disk, tape, and
compact disc drives are located directly on the drives. If you
are installing one of these types of drives inside your BA42 box,
use the switches or jumpers on the drive itself instead of the
switches on the expansion box.
SCSI ID switches and jumpers on floppy disk and tape drives
are preset to ID number 5. SCSI ID jumpers on compact disc
drives are preset to ID number 4.
See the following appendixes for SCSI ID switch and jumper
locations and settings for each drive:
• TZ30 tape drive—Appendix C
• RX23 floppy disk drive—Appendix D
• RX33 floppy disk drive—Appendix E
• TZK10 QIC tape drive-Appendix F
• RRD42 compact disc drive—Appendix G
Change the SCSI ID Switch or Jumper Settings If Necessary
If the switches or jumpers on the drive are set to a SCSI ID
number that is not available for use, use a pen or small pointed
object to flip the switches you need to change, or use a small
set of needle-nose pliers to remove and replace the jumpers you
need to change.

Installing a BA42 Storage Expansion Box Upgrade 2-21

Connect the Internal Cables
Connect the internal power and SCSI signal cables to the drive.
Note: Because floppy disk, tape, and compact disc drives do not use
the SCSI ID switches on the back of the expansion box, you cannot
connect the SCSI ID switch cable to the drive.

See the following appendixes for instructions on how to connect
internal cables to a floppy disk, tape, or compact disc drive.
• TZ30 tape drive—Appendix C
• RX23 floppy disk drive—Appendix D
• RX33 floppy disk drive—Appendix E
• TZK10 QIC tape drive-Appendix F
• RRD42 compact disc drive—Appendix G
Turn to page 2-15 for instructions on how to insert the drive
into the expansion box.

2-22 Installing a BA42 Storage Expansion Box Upgrade

Insert the Drive into the Expansion Box
Tilt the drive until you can place the metal tabs on the bottom
of the drive into the openings in the floor of the box.

WSEBAB5

Figure 2-16. Inserting the drive in the expansion box

Installing a BA42 Storage Expansion Box Upgrade 2-23

Tighten the Captive Screw
Tighten the captive screw to hold the drive in place*

WSEBAI36

Figure 2-17. Tightening the captive screw

2-24

Installing a BA42 Storage Expansion Box Upgrade

Remove the Blank Panel from the Front of the Expansion Box
Cover
Remove the blank panel from the front of the expansion box
cover by inserting a standard screwdriver under the bottom of
the panel and pulling outward.

Blank panel

Use a small standard screwdriver
to pry the panel loose, then lift
the panel away from the box.

WSEBAI14

Figure 2-18. Removing the blank panel from the front of the expansion

box cover

Installing a BA42 Storage Expansion Box Upgrade

2-25

Install the Open Bezel Insert on the Front of the Expansion
Box Cover
Install the open bezel insert that came with your drive onto the
front of the expansion box cover by lining up the locating posts
with the holes on the front of the cover and snapping the insert
into place.
Bezel insert

Front of the
expansion box cover

Locating
posts
WSEBAI07

Figure 2-19. Installing the open bezel insert on the front of the
expansion box cover

2-26 Installing a BA42 Storage Expansion Box Upgrade

Cover-release screws
WSEBAI19

Figure 2-20.

Replacing the cover on the expansion box

T\irn to page 2-28 to verify your system configuration,

Installing a BA42 Storage Expansion Box Upgrade

2-27

Verifying Your System Configuration
TUrn Power On
TUrn on power to all expansion boxes and then the system unit.
Check the Configuration Display
The configuration display for your system tells you whether the
system recognizes the drives in your expansion boxes.
To display and read your system configuration, follow the
instructions provided in the hardware installation guide or
user's guide that came with your system.
If an expansion box drive does not appear in the configuration
display, follow this procedure:
1. Press the 1 on the on/off switch on the expansion box to be
sure the switch is securely in the on position.
2. Turn off your system unit and expansion boxes
3. Be sure all expansion box cables are connected securely.
4. Be sure all power cords are connected securely.
5. Be sure the SCSI terminator is attached securely to the
expansion box.
6. Be sure the internal cables are connected securely to the
drive.
7. Check the expansion box cable connector for damaged pins.
8. Check the SCSI ID switch or jumper settings.
9. Turn on all expansion boxes and then system unit. Check
the configuration display again.
10. If the configuration display still does not show the drives in
the expansion box, contact your system manager or Digital
service representative.
Once SCSI ID switch settings for the hard disk drives installed
in your expansion box are recognized by your system, replace
the cover on the SCSI ID switches on the back of your
expansion box by inserting the notch on the bottom of the
cover into the opening below the switches on the back of the
box, and snapping the cover into place.
2-28

Installing a BA42 Storage Expansion Box Upgrade

Installing a BA42 Storage Expansion Box Upgrade 2-29

Equipment Specifications
This appendix lists the physical specifications, operating
conditions, and nonoperating conditions for the following items:
• BA42 expansion box
• RZ25 hard disk drive
• RZ55 hard disk drive
• RZ56 hard disk drive
• RZ57 hard disk drive
• RZ58 hard disk drive
• TZ30 tape drive
• TZK10 QIC tape drive
• RX23 diskette drive
• RX33 diskette drive

Equipment Specifications A-l

BA42 Storage Expansion Box Equipment Specifications
Table A-l. BA42 Storage Expansion Box Description
Weight
Height
Width
Depth
Input voltage
Frequency range
Power
Table A-2.

17.24 kg (38.00 Ib) maximum
10.16 cm (4.00 in)
46.02 cm (18.12 in)
40.64 cm (16.00 in)
Automatically adjusting ac input
120-240 Vac
47 to 63 Hz
90 watts maximum

BA42 Storage Expansion Box Operating Conditions

Temperature range1
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Minimum dew-point temperature
Altitude

10°C to 40°C (50°F to 104°F)
11°C (20°F) per hour maximum
20% to 80% noncondensing
28°C (82°F)
2°C (36°F)
2400 m (8000 ft) maximum

Reduce maximum temperature by 1.8°C for each 1,000 meter (1.0°F for each 1,000 ft) increase in
altitude.

Table A-3.

BA42 Storage Expansion Box Nonoperating Conditions

Temperature range
Relative humidity
Maximum wet-bulb temperature
Altitude

A-2 Equipment Specifications

5°C to 50°C (41°F to 122°F)
10% to 95% noncondensing
46°C (115°F) packaged
4900 m (16,000 ft) maximum

RZ25 SCSI Hard Disk Drive Equipment Specifications
Table A-4. RZ25 SCSI Hard Disk Drive Description
Internal drive
- Weight
- Height
- Width
- Depth
Capacity
- Bytes per drive
- Blocks per drive
— Block size
Data transfer rate
- Busasynchronous mode
— Bus synchronous mode
- To and from media
Seek time
Average latency
Interface

0.82 kg (1.8 lb)
4.14 cm (1.63 in)
10.16 cm (4.00 in)
14.61 cm (5.75 in)
426MB
832,527
512 bytes
3.0 MB per second
4.0 MB per second
2.1-3.2 MB per second
2.5 ms track-to-track
14 ms average
26 ms maximum
6.8ms
SCSI

Table A-5. RZ25 SCSI Hard Disk Drive Operating Conditions
Temperature range1
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Altitude

10°C to 55°C (50°F to
11°C (20°F) per hour, maximum
8% to 80% noncondensing
26°C (78°F)
-300 to 3050 m ( -1000 to 10,000 ft)

Reduce maximum temperature by 1.8°C for each 1,000 meter (1.0°F for each 1,000 ft) increase in
altitude.

Equipment Specifications A-3

Table A-6. RZ25 SCSI Hard Disk Drive Nonoperating Conditions
Temperature range
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Altitude

A-4 Equipment Specifications

-40°C to 66°C ( -40°F to 151°F)
20°C (36°F) per hour, maximum
8% to 95% packaged, noncondensing
46°C (115°F) packaged
-300 m to 12,200 m ( -1,000 ft to 40,000 ft)

RZ55 SCSI Hard Disk Drive Equipment Specifications
Table A-7. RZ55 SCSI Hard Disk Drive Description
Expansion box
- Weight
- Height
- Width
- Depth
Internal drive
- Weight
- Height
- Width
- Depth
Capacity
— Bytes per drive
— Blocks per drive
— Block size
Data transfer rate
— Bus asynchronous mode
— Bus synchronous mode
— To and from media
Seek time
Average latency
Interface

13.15 kg (29.00 Ib)
13.97 cm (5.50 in)
32.39 cm (12.75 in)
28.55 cm (11.25 in)

3.81 kg (8.40 Ib)
8.26 cm (3.25 in)
14.61 cm (5.75 in)
20.83 cm (8.20 in)
332.3 MB
649,040
512 bytes
1.5 MB per second
4 MB per second
1.25 MB per second
4 ms track-to-track
16 ms average
35 ms maximum
8.3ms
SCSI

Equipment Specifications A-5

Table A-8. RZ55 SCSI Hard Disk Drive Operating Conditions

Temperature range1
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Minimum dew-point temperature
Altitude

10°C to 55°C (50°F to 131°F)
11°C (20°F) per hour, maximum
20% to 80% noncondensing
25.6°C (78°F)
2°C (36°F)
-300 to 4600 m ( -1000 ft to 15,000 ft)

Reduce maximum temperature by 1.8°C for each 1,000 meter (LO°F for each 1,000 ft) increase in
altitude.

Table A-9. RZ55 SCSI Hard Disk Drive N on ope rat ing Conditions

Temperature range
Temperature change rate
Relative humidity

Maximum wet-bulb temperature
Altitude

Equipment Specifications

-40°C to 66°C ( -40°F to 151°F)
20°C (36°F) per hour, maximum
20% to 95% packaged
46°C (115°P) packaged
-300 to 12,200 m ( -1000 ft to 40,000 ft)

RZ56 SCSI Hard Disk Drive Equipment Specifications
Table A-10. RZ56 SCSI Hard Disk; Drive Description
Internal drive
Weight
Height
Width
Depth
Capacity
- Bytes per drive
- Blocks per drive
- Block size
Data transfer rate
— Bus asynchronous mode
— Bus synchronous mode
— To and from media
Seek time
Average latency
Interface

3.81 kg (8.40 Ib)
8.26 cm (3.25 in)
14.61 cm (5.75 in)
20.32 cm (8.00 in)
655.17 MB
1,299,174
512 bytes
1.6 MB per second
4.0 MB per second
1.875 MB per second
4 ms track-to-track
16 ms average
35 ms maximum
8.3 ms
SCSI

Table A-11. RZ56 SCSI Hard Disk Drive Operating Conditions

Ifemperature range1
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Minimum dew-point temperature
Altitude

10°C to 55°C (50°F to 131°F)
11°C (20°F) per hour, maximum
8% to 80% noncondensing
25.6°C (78°F)
2°C (36°F)
-300 to 4600 m ( -1000 to 15,000 ft)

Reduce maximum temperature by 1.8°C for each 1,000 meter (1.0°F for each 1,000 ft) increase in
altitude.

Equipment Specifications A-7

Table A-12. RZ56 SCSI Hard Disk Drive Nonoperating Conditions

Temperature range
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Altitude

A-8 Equipment Specifications

-40°C to 66°C ( -40°F to 151°F)
20°C (36°F) per hour, maximum
8% to 95% packaged
46°C (115°P) packaged
-300 to 12,200 m ( -1000 to 40,000 ft)

RZ57 SCSI Hard Disk Drive Equipment Specifications
Table A-13.

RZ57 SCSI Hard Disk Drive Description

Internal drive
-Weight
- Height
- Width
- Depth
Capacity
- Bytes per drive
- Blocks per drive
— Block size
Data transfer rate
- Bus asynchronous mode
- Bus synchronous mode
— To and from media
Seek time
Average latency
Interface

3.81 kg (8.40 Ib)
8.26 cm (3.25 in)
14.61 cm (5.75 in)
20.32 cm (8.00 in)
1.0 gigabytes
1,954,050
512 bytes
1.6 MBper second
4.0 MBper second
2.5 MB per second
4 ms track-to-track
14.5 ms average
33 ms maximum
8.3 ms
SCSI

Table A-14. RZ57 SCSI Hard Disk Drive Operating Conditions

Temperature range1
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Minimum dew-point temperature
Altitude

10°C to 55°C (50°F to 131°F)
11°C (20°F) per hour, maximum
8% to 80%, noncondensing
26°C (78°F)
2°C (36°F)
-300 to 4600 m ( -1000 to 15,000 ft)

Reduce maximum temperature by 1.8°C for each 1,000 meter (1.0°F for each 1,000 ft) increase in
altitude.

Equipment Specifications A-9

Table A-15. RZ57 SCSI Hard Disk Drive Nonoperating Conditions

Temperature range
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Altitude

A-10 Equipment Specifications

-40°C to 66°C ( -40°F to 151°F)
20°C (36°F) per hour, maximum
8% to 95%, packaged
46°C (115°F), packaged
-300 to 12,200 m ( -1000 to 40,000 ft)

RZ58 SCSI Hard Disk Drive Equipment Specifications
Table A-16. RZ56 SCSI Hard Disk Drive Description
Internal drive
- Weight
- Height
- Width
- Depth
Capacity
- Bytes per drive
- Blocks per drive
- Block size
Data transfer rate
— Bus asynchronous mode
- Bus synchronous mode
— Ib and from media
Seek time
Average latency
Interface

3.81 kg (8.40 Ib)
8.26 cm (3.25 in)
14.61 cm (5.75 in)
20.32 cm (8.00 in)
1.38 gigabytes
2,698,061 not including spares
512 bytes
1.6 MB per second
5.0 MB per second
2.5 MB per second
2.5 ms track-to-track
12.5 ms average
25 ms maximum
5.6 ms
SCSI II

Table A-17. RZ58 SCSI Hard Disk Drive Operating Conditions
Temperature range1
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Minimum dew-point temperature
Altitude

10°C to 55°C (50°F to 131°F)
11°C (20°F) per hour, maximum
8% to 80%
26°C (78°F)
2°C (36°F)
-300 to 4600 m ( -1000 to 15,000 ft)

Reduce maximum temperature by 1.8°C for each 1,000 meter (LO°F for each 1,000 ft) increase in
altitude.

Equipment Specifications A-l 1

Table A-18. RZ58 SCSI Hard Disk Drive Nonoperating Conditions
Temperature range
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Altitude

A-12 Equipment Specifications

-40°C to 66°C ( -40°F to 151°F)
20°C (36°F) per hour, maximum
8% to 95%, packaged
46°C (115°F), packaged
-300 to 12,200 m ( -1000 to 40,000 ft)

1730 Tape Drive Equipment Specifications
Table A-19. TZ30 Tape Drive Description

Internal drive
- Weight
- Height
- Width
- Depth
Bit density
Cartridge capacity
Media
Mode of operation
Number of tracks
Tape speed
Track format
Data transfer rate

1.50 kg (3.31 Ib)
4.14 cm (1.63 in)
14.48 cm (5.70 in)
21.59 cm (8.50 in)
2624 bits per cm (6667 bits per in)
95 Mbytes, formatted (approximate)
12.77 mm (0.5 in) unformatted magnetic tape
Streaming
22
190 cm per second (75 in per second)
Multiple track serpentine recording
62.5 Kbytes per second

Table A-20. TZ30 Tape Drive Operating Conditions

Temperature range1
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Minimum dew-point temperature
Altitude

10°C to 40°C (50°F to 104°F)
11°C (20°F) per hour, maximum
20% to 80% noncondensing
25°C (77°F)
2°C (36°F)
2400 m (8000 ft) maximum

Reduce maximum temperature by 1.8°C for each 1,000 meter (1.0°F for each 1,000 ft) increase in
altitude.

Equipment Specifications A-13

Table A-21. TZ30 Tape Drive Nonoperating Conditions
Temperature range
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Altitude

A-14 Equipment Specifications

-40°C to 66°C ( -40°F to 151°F)
20°C (36°F) per hour, maximum
10% to 95%
2°C (36°F)
9100 m (30,000 ft) maximum

TZK10 QIC Tape Drive Equipment Specifications
Table A-22. TZK10 QIC Tape Drive Description

Internal drive
- Weight
- Height
- Width
- Depth
Cartridge capacity
Data density
Drive interface
Media
Mode of operation
Number of tracks
Power consumption, normal
Power consumption, peak
Transfer rate
Tape speed
Track format

1.09 kg (2.40 Ib)
4.39 cm (1.73 in)
14.61 cm (5.75 in)
20.83 cm (8.20 in)
320 MB (approximate) with DC6320
525 MB (approximate) with DC6525
16,000 bits per in
SCSI-2
DC6320, DC6525, or Digital-approved
equivalent
Streaming
26
20 watts
33 watts
200 KB per second at average streaming mode
1.5 MB per second at SCSI maximum
305 cm (120 in) per second
Multiple track serpentine recording

Table A-23. TZK10 QIC Tape Drive Operating Conditions

Temperature range1
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Minimum dew-point temperature
Altitude

5°C to 40°C (50°F to 104°F)
11°C (20°F) per hour, maximum
2% to 80% noncondensing
28°C (82°F)
2°C (36°F)
3900 m (13,000 ft) maximum

Reduce maximum temperature by 1.8°C for each 1,000 meter (LO°F for each 1,000 ft) increase in
altitude.

Equipment Specifications A-15

Table A-24. TZK10 QIC Tape Drive Nonoperating Conditions
Temperature range
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Altitude

A-16 Equipment Specifications

-30°C to 60°( -22°F to
20°C (36°F) per hour, maximum
10% to 95%
46°C (115°F)
12,200 m (40,000 ft) maximum

RX23 Diskette Drive Equipment Specifications
Table A-25. RX23 Diskette Drive Description

Internal drive
- Weight
- Height
- Width
- Depth
Number of tracks
Number of heads
Step rate
Diskette size
Recording surfaces per diskette
Sectors per track
Capacity
— Bytes per drive
— Blocks per drive
— Block size
Data transfer rate
— To and from media
Operating power
Standby power

0.48 kg (1.06 Ib)
3.00 cm (1.18 in)
10.16 cm (4.00 in)
15.01 cm (5.91 in)
80
2
3 ms per track
8.9 cm (3.5 in)
2
9 double density
18 high density
737 KB double density
1,474 KB high density
1,440 double density
2,880 high density
512 bytes
250 Kbits per second double density
500 Kbits per second high density
3.0 watts
0.3 watts

Equipment Specifications A-17

Table A-26. RX23 Diskette Drive Operating Conditions

Temperature range1
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Minimum dew-point temperature
Altitude

5°C to 50°C (40°F to 122°F)
11°C (20°F) per hour, maximum
8% to 80%, noncondensing
29°C (80°F)
2°C (36°F)
-300 to 3060 m ( -1,000 ft to 10,000 ft)

Reduce maximum temperature by 1.8°C for each 1,000 meter (1.0°F for each 1,000 ft) increase in
altitude.

Table A-27. RX23 Diskette Drive Nonoperating Conditions

Temperature
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Altitude

A-18 Equipment Specifications

-40°C to 66°C ( -40°F to 151°F)
20°C (36°F) per hour, maximum
5% to 95%, packaged
46°C (115°F), packaged
-300 to 12,300 m ( -1,000 ft to 40,000 ft)

RX33 Diskette Drive Equipment Specifications
Table A-28. RX33 Diskette Drive Description

Internal drive
- Weight
- Height
- Width
- Depth
Number of tracks
Number of heads
Track density
Step rate
Diskette size
Recording surfaces per diskette
Sectors per track
Capacity
- Bytes perdrive
- Blocks perdrive
- Block size
Data transfer rate
- Tb andfrommedia
Operating power
Standby power

1.10 kg (2.43 Ib)
4.32 cm (1.70 in)
14.61 cm (5.75 in)
20.32 cm (8.00 in)
80
2
96 tracks per inch
3 ms per track
13.13 cm (5.25 in)
2
10 normal density
15 high density
409 KB normal density
1200 KB high density
800 normal density
2400 high density
512 bytes
250 Kbits per second normal density
500 Kbits per second high density
4.1 watts
1.5 watts

Equipment Specifications A-19

Table A-29. RX33 Diskette Drive Operating

Temperature range1
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Minimum dew-point temperature
Altitude

10°C to 46°C (50°F to
11°C (20°F) per hour, maximum
20% to 80% noncondensing
45°C (113°F)
2°C (36°F)
2400 m (8000 ft) maximum

Reduce maximum temperature by 1.8°C for each 1,000 meter (1.0°F for each 1,000 ft) increase in
altitude.

Table A-30.

RX33 Diskette Drive Nonoperating Conditions

Temperature
Temperature change rate
Relative humidity
Maximum wet-bulb temperature
Altitude

A-20 Equipment Specifications

-34°C to 60°C ( -30°F) to 140°F)
20°C (36°F) per hour, maximum
5% to 90%
45°C (113°F) packaged
9100 m (30,000 ft) maximum

BA42 Configurations and Part Numbers

Table B-1. BA42 Storage Expansion Box Configurations
Order Number
Expansion Box Configuration

120 Volt

240 Volt

Single RZ25
Double RZ25
Single RZ25, single TZ30
Single RZ25, single TZK10
Single RZ25, single RRD42
RZ25 upgrade kit
Single RZ55
Double RZ55
Single RZ56
Double RZ56
Single RZ57
Double RZ57
Single RZ55, single RX23
Single RZ55, single RX33
Single RZ55, single TZ30
Single RZ55, single TZK10

SZ12G-XA
SZ12G-GA
SZ12G-HA
SZ12G-EA
SZ12G-FA
RZ25-UK
SZ12A-XA
SZ12A-AA
SZ12B-XA
SZ12B-BA
SZ12C-XA
SZ12C-CA
SZ12A-LA
SZ12A-MA
SZ12A-HA
SZ12A-EA

SZ12G-XB
SZ12G-HB
SZ12G-EB
SZ12G-FB
SZ12A-XB
SZ12A-AB
SZ12B-XB
SZ12B-BB
SZ12C-XB
SZ12C-CB
SZ12A-LB
SZ12A-MB
SZ12A-HB
SZ12A-EB
(continued on next page)

BA42 Configurations and Part Numbers B-l

Table B-1 (Cont.). BA42 Storage Expansion Box Configurations
Order Number
Expansion Box Configuration

120 Volt

240 Volt

Single RZ55, single RRD42
Single RZ56, single TZ30
Single RZ56, single TZK10
Single RZ56, single RRD42
Single RZ57, single TZK10
Single RZ57, single RRD42
Single RZ58
Double RZ58
Single RX23
Single RX33
Single TZ30
Single TZK10

SZ12A-FA
SZ12B-HA
SZ12B-EA
SZ12B-FA
SZ12C-EA
SZ12C-FA
SZ12-JX
SZ12-JJ
SZ12X-LA
SZ12X-MA
SZ12X-HA
SZ12X-EA

SZ12A-FB
SZ12B-HB
SZ12B-EB
SZ12B-FB
SZ12C-EB
SZ12C-FB

B-2 BA42 Configurations and Part Numbers

SZ12X-LB
SZ12X-MB
SZ12X-HB
SZ12X-EB

TZ30 Tape Drive
The TZ30 is a 1/2-inch, 95-megabyte, half-height tape drive.
This appendix tells you how to
• Set SCSI ID switches on the TZ30 tape drive
• Attach the internal BA42 expansion box SCSI signal and
power cables to the TZ30 tape drive
• Use the TZ30 tape drive
• Handle and store tape cartridges

TZ30 Tape Drive C-l

Setting the SCSI ID Switches
SCSI ID switches for the TZ30 tape drive are arranged
vertically on the side of the drive. The bottom switch is
switch 1. The top switch is switch 4.
To set the SCSI ID number on a TZ30 tape drive, start from the
bottom switch and work up, setting the switches to the left or
to the right.
Table C-l shows the SCSI ID switch settings for the TZ30
tape drive. Figure C-l shows the SCSI ID switches set to ID
number 5.
Table C-l. SCSI ID Switch Settings for the TZ30 Tape Drive
SCSI ID

Number

Switch 1 '

Switch 2

Switch 3

Switch 4

0
1
2
3
4
5
6
7

Left
Left
Left
Left
Left
Left
Left
Left

Right
Right
Right
Right
Left
Left
Left
Left

Right
Right
Left
Left
Right
Right
Left
Left

Right
Left
Right
Left
Right
Left
Right
Left

Switch 1 should always be set to the left.

C-2 TZ30 Tape Drive

SCSI ID switches
set to ID numbers
(from the bottom,
Left Left Right Left)

WSEBAI58

Figure C-l. SCSI ID switches on the TZ30 tape drive

TZ30 Tape Drive

Attaching the Internal Expansion Box Cables to a Drive
Figure C-2 shows how to attach the expansion box internal
SCSI signal cable and power cable to a TZ30 tape drive.

SCSI signal cable

Power cable

WSEBAI33

Figure C-2.

C-4 TZ30 Tape Drive

Attaching the internal expansion box cables to a TZ30 tape
drive

Using a TZ30 Tape Drive
TZ30 Tape Cartridge
The TZ30 tape drive uses CompacTape TK50 tape cartridges.
Arrow
Logo

Label
Write-protect switch
WSEBAI59

Figure C-3. A TZ30 tape cartridge

TZ30 Tape Drive

C-5

External Controls and Indicators
Figure C-4 shows the external controls and indicator lights on
the TZ30 tape drive. Table C-2 explains how to interpret the
indicator lights on the drive.

Write-protect
indicator light
Tape-in-use
indicator light
Operate-lever
indicator light
Unload button
Tape cartridge
locking lever

WSEBAI44

Figure C-4. External controls and indicator lights on the TZ30 tape drive

G-6 TZ30 Tape Drive

Table C-2. Indicator Lights on the TZ30 Tape Drive
Light

State

Meaning

Orange

The tape is write-protected.
(Write-protect)
The tape is write-enabled.
The tape is in use.
The tape is ready for use.
You can load the tape (move the
lever to the right) or unload it
(move the lever to the left).
Do not move the lever.
A cartridge error has been
detected.
The power-up diagnostic test is
running.
A drive fault has been detected.

Off

Yellow (Tape-in-use)
Green (Operate lever)

Blinking1
On
On
Off
Blinking

All three

On2

Blinking

*Fast blinking (four times a second) indicates that a read or write is in progress.
Medium blinking (two times a second) indicates that the tape is loading or unloading.
Slow blinking (once a second) indicates that the tape is rewinding.
All three lights stay on for a few seconds, while the power-up diagnostic test is
running. If all three lights stay on for a long time, it means that the power-up
diagnostic test has failed.,

TZ30 Tape Drive G-7

Write-Protecting a Tape Cartridge

To prevent information on the tape from being written over,
write-protect the cartridge. To do this,
1. Find the write-protect switch on the right side of the front
of the cartridge.
2. Slide the switch to the left until an orange dot appears
above the left arrow on the switch.
Tape cartridge

Orange dot

Write-protect ed
position

Write-protect switch
WSEBAI41

Figure C-5. Write-protecting a TZ30 tape cartridge

C-8 TZ30 Tape Drive

Write-Enabling a Tape Cartridge
To write data to a cartridge, write-enable it. To do this,
1. Find the write-protect switch on the right side of the front
of the cartridge.
2. Slide the switch all the way to the right until the orange
dot disappears.
Tape cartridge

Write-enabled
position

Write-protect switch
WSEBAI42

Figure C-6. Write-enabling a TZ30 tape cartridge

TZ30 Tape Drive C-9

Inserting a Tape Cartridge into a Drive
Before using a cartridge, check the position of the tape leader
inside it to make sure it is correct.
1. Remove the cartridge from its protective case.
2. Open the door on the back of the cartridge.
a. Insert your thumb into the groove on the right corner
of the back of the cartridge.
b. Press up on the door lock to release it.
c. Push the right edge of the door away from you until the
door is fully open and you can see the leader.

WSEBAI38

Figure C-7. Opening the door on a cartridge

C-10 TZ30 Tape Drive

3. Be sure the leader is positioned as shown in Figure C-8. If
it looks different in any way, use another cartridge.
Using a cartridge that has an incorrectly positioned
leader can damage your tape drive.
Tape cartridge

Cartridge leader

WSEBAI40

Figure C-8. A tope leader positioned correctly in a cartridge

TZ30 Tape Drive Ol 1

Ib insert a tape cartridge into the drive,
1. Make sure the system unit is on.
2. The TZ30 operate lever light (green) comes on and a beep
sounds.
3. Make sure the lever is to the left in the open position.
4. Insert the tape cartridge into the drive, as shown in
Figure C-9.
5. With the cartridge all the way in, slide the lever all the way
to the right into the closed position. The green light goes
off and the yellow tape-in-use light blinks, indicating that
the tape is being loaded.

Locking lever

WSEBAI56

Figure C-9. Inserting a tape cartridge into a 1Z30 tape drive

C-12 TZ30 Tape Drive

Removing a Tape Cartridge from a Drive
Caution: The tape cartridge must be removed from a drive before
the drive is turned off. Failure to remove the cartridge can result in
damage to the cartridge and to the drive.

lb remove a tape cartridge from the drive,
1. Press the unload button. Wait approximately 2 minutes for
the tape to rewind.
2. When the green light comes on and the beep sounds, slide
the lever to the left. The cartridge ejects. Remove the
cartridge, as shown in Figure C-10.

Locking lever

WSEBAI57

Figure C-10. Removing a tape cartridge from a TZ30 tape drive

TZ30 Tape Drive C-13

Handling and Storing Tape Cartridges
Incorrect handling and storing of tape cartridges can damage
them and cause loss of data. In turn, damaged cartridges can
damage the tape drive. The following precautions should be
taken:
• Do not touch the exposed surface of the tape.
• Store tape cartridges in their protective containers.
• Place cartridge labels in the front slide slot to the left of
the write-protect switch. Placing labels on the top, bottom,
sides, or rear of the cartridge can damage the tape drive.
• Do not drop tape cartridges. Doing so can damage the
cartridges.
• Keep cartridges out of extreme temperatures and away
from direct sunlight.

C-14 TZ30 Tape Drive

RX23 Floppy Disk Drive
The RX23 is a 3-1/2 inch, 1.44-megabyte, half-height floppy disk
drive. This appendix tells you how to
• Set SCSI ID switches on the RX23 floppy disk drive
• Attach the internal BA42 expansion box SCSI signal and
power cables to the RX23 floppy disk drive
• Use the RX23 floppy disk drive
• Handle and store floppy diskettes

RX23 Floppy Disk Drive D-l

Setting the SCSI ID Switches
SCSI switches for the RX23 floppy disk drive are located on the
left side of the drive as you face the front of the drive.
Table D-l shows the SCSI ID switch settings for the RX23
floppy disk drive. Figure D-l shows the SCSI ID switches set to
ID number 5.
Table D-l. SCSI ID Switch Settings for the RX23 Floppy Disk Drive
Switch Settings

SCSI ID
Number

Switch 1

Switch 2

Switch 3

7
6
5
4
3
2
1
0

Down
Down
Down
Down
Up
Up
Up
Up

Down
Down
Up

Down
Up
Down

Down
Down
Up
Up

Down
Up
Down

D-2 RX23 Floppy Disk Drive

SCSI ID switches set
to ID number 5
(Down Up Down)

WSEBAI34

Figure D-l. SCSI ID switches on the RX23 floppy disk

RX23 Floppy Disk Drive [>-3

Attaching the Internal Expansion Box Cables to a Drive
Figure D-2 shows how to attach the expansion box internal
SCSI signal cable and power cable to an RX23 floppy disk
drive.

Power cable

SCSI signal cable

WSEBAB1

Figure D-2. Attaching the internal expansion box cables to an RX23
floppy disk drive

D-4 RX23 Floppy Disk Drive

Using an RX23 Floppy Disk Drive
RX23 Floppy Diskette

The RX23 floppy disk drive uses high-density RX23K floppy
diskettes. You can identify a high-density diskette by the
notches that appear in each lower corner of the diskette. A
floppy diskette that has a notch in only one corner is not a
high-density diskette.
Arrow
Logo
Label

n
\

n
/

Front
Notches
DERX035

Figure D-3. An RX23 floppy diskette

RX23 Floppy Disk Drive D-5

External Controls and Indicators
Figure D-4 shows the external controls and indicators on the
RX23 floppy disk drive.
Indicator light
Eject button

WESBAI61

Figure D-4. External controls and indicators on the RX23 floppy disk
drive

D-6 RX23 Floppy Disk Drive

Write-Protecting a Floppy Diskette
Tb prevent information on a diskette from being written over,
write-protect the diskette. Tb do this,
1. Find the black write-protect switch in the lower-right corner
on the back of the floppy diskette.
2. Move the switch toward the bottom of the floppy diskette
until it clicks and locks into place, and a small, square
opening appears just above the switch.
Switch in the
write-protect
position

Write-protect switch
in the write-enable
position
WSEQ032

Figure D-5. Write-protecting an RX23 floppy diskette

RX23 Floppy Disk Drive D-7

Write-Enabling a Floppy Diskette
To write data to a diskette, write-enable it. To do this,
1. Find the black write-protect switch in the lower-right corner
on the back of the floppy diskette.
2. Move the switch up until the hole in the floppy diskette is
closed and the switch clicks and locks into place.
Switch in the
write-enable
position

Write-protect switch
in the write-protect
position
WSEQ040

Figure D-6. Write-enabling an RX23 floppy diskette

D-8 RX23 Floppy Disk Drive

Inserting a Floppy Diskette into a Drive
To insert a floppy diskette into the drive,
1. Position the floppy diskette so the metal portion on the
front of the diskette points to the center of the slot in the
drive.

WSEG036

Figure D-7. Inserting a floppy diskette into an RX23 floppy disk drive

RX23 Floppy Disk Drive

Gently push the floppy diskette into the slot until it clicks
and drops down into place.

Diskette

WSEQ037

Figure D-8. A floppy diskette positioned correctly in an RX23 floppy
disk drive

D-10 RX23 Floppy Disk Drive

Removing a Floppy Diskette from a Drive
Tb remove a floppy diskette from the drive,
1. Be sure the indicator light on the front of the drive is not
glowing yellow. This shows the drive is still operating.
Caution: Removing a floppy diskette from a drive while the
indicator light glows yellow can damage the floppy diskette and
the drive.

2. Press the eject button on the lower-right corner of the drive.
3. Pull the diskette out of the drive.
Eject button

WSEG038

Figure D-9. Removing a floppy diskette from an RX23 floppy disk drive

RX23 Floppy Disk Drive D-l 1

Handling and Storing Floppy Diskettes
Incorrect handling and storing of floppy diskettes can damage
them and cause loss of data. In turn, damaged diskettes can
damage the disk drive. The following precautions should be
taken:
• Keep diskettes dry.
• Keep diskettes out of extreme temperatures and away from
direct sunlight.
• Store floppy diskettes away from magnetic fields, such
as those produced by motors, transformers, and video
terminals and monitors.

D-12 RX23 Floppy Disk Drive

RX33 Floppy Disk Drive
The RX33 is a 5-1/4 inch, 1.2-megabyte, half-height floppy disk
drive. This appendix tells you how to
• Set SCSI ID switches on the RX33 floppy disk drive
• Attach the internal BA42 expansion box SCSI signal and
power cables to the RX33 floppy disk drive
• Use the RX33 floppy disk drive
• Handle and store floppy diskettes
• Format diskettes in the RX33 floppy disk drive

RX33 Floppy Disk Drive E-l

Setting the SCSI ID Switches
SCSI switches for the RX33 floppy disk drive are located inside
the bracket on the left side of the drive as you face the front of
the drive.
Table E-l shows the SCSI ID switch settings for the RX33
floppy disk drive. Figure E-l shows the SCSI ID switches set to
ID number 5.
Table E-l. SCSI ID Switch Settings for the RX33 Floppy Disk Drive
Switch Settings

SCSI ID
Number

Switch 1

Switch 2

Switch 3

7
6
5
4
3
2
1
0

Down
Down
Down
Down
Up
Up
Up
Up

Down
Down

Down

E-2 RX33 Floppy Disk Drive

Up
Down
Down
Up

Down
Up
Down
Up
Down

SCSI ID switches
set to ID number 5
(Down Up Down

WSEBAI21

Figure E-l. SCSI ID switches on the RX33 floppy disk drive

RX33 Floppy Disk Drive E-3

Attaching the Internal Expansion Box Cables to a Drive
Figure E-2 shows how to attach the expansion box internal
SCSI signal cable and power cable to an RX33 floppy disk
drive.

SCSI signal cable
Power cable

WSEBAI32

Figure E-2. Attaching the internal expansion box cables to an RX33
floppy disk drive

RX33 Floppy Disk Drive

Using an RX33 Floppy Disk Drive
RX33 Floppy Diskette
The RX33 floppy disk drive uses double-sided, high-density,
removable RX33K floppy diskettes.
Caution: Touching the diskette surface where it shows through its
cover can damage the diskette.

Diskette label

Write-protect notch

Diskette surface

WSEBAI54

Figure E-3. An RX33 floppy diskette

RX33 Floppy Disk Drive E-5

External Controls and Indicators
Figure E-4 shows the external controls and indicators on the
RX33 floppy disk drive.
Indicator light
Locking lever

WSEBAI62

Figure E-4. External controls and indicators on the RX33 floppy disk
drive

E-4

RX33 Floppy Disk Drive

Write-Protecting a Floppy Diskette
Tb prevent information on a diskette from being written over,
write protect it. Tb do this, cover the write-protect notch on the
side of the diskette with write-protect tape supplied with your
floppy diskettes.
Write-protect
tape

di lit a

RX33K
2HD

WSEBAI55

Figure E-5. Write-protecting an RX33 floppy diskette

Write-Enabling a Floppy Diskette
lb write data to a diskette, write-enable it by peeling off the
write-protect tape from the write-protect notch on the diskette.

RX33 Floppy Disk Drive E-7

Inserting a Floppy Diskette into a Drive

Tb insert a floppy diskette into the drive,
1. Position the diskette so that the arrow on the diskette label
is pointing towards the slot opening in the drive.
2. Push the diskette all the way into the slot until it stops.
3. Move the lever clockwise to its vertical position.
Indicator light

Locking lever
WSEBAI52

Figure E-6. Inserting a floppy diskette into an RX33 floppy disk drive

RX33 Floppy Disk Drive

Removing a Floppy Diskette from a Drive

Tb remove a floppy diskette from the drive,
1. Check the light on the front of the drive. If the light glows
red, the drive is active. Do not attempt to remove a diskette
when the drive is active, or the diskette may be damaged.
Note: If during software installation, the light remains lit when
the drive is not active, follow the instructions in your software
documentation.

Once the light is off, move the lever to the horizontal
position and remove the diskette.
Locking lever

Indicator light

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Figure E-7. Removing a floppy diskette from an RX33 floppy disk drive

RX33 Floppy Disk Drive

Handling and Storing Floppy Diskettes
Incorrect handling and storing of floppy diskettes can damage
them and cause loss of data. In turn, damaged floppy diskettes
can damage the disk drive. Take the following precautions:
• Keep floppy diskettes in paper envelopes when not in use.
• Do not fold or bend floppy diskettes.
• Do not touch the exposed surface of floppy diskettes.
Handle only the top label area.
• Store floppy diskettes vertically. Tb prevent warping, avoid
packing them tightly.
• Use only a felt-tip pen when labeling floppy diskettes. The
pressure of a sharp instrument, such as a pencil or pen, can
damage diskette surfaces.
• Keep diskettes out of extreme temperatures and away from
direct sunlight.
• Store floppy diskettes away from magnetic fields, such
as those produced by motors, transformers, and video
terminals and monitors.

E-10 RX33 Floppy Disk Drive

Formatting RX33 Floppy Diskettes
Each new RX33 floppy diskette must be formatted and
initialized before it can be used.
The following pages tell you how to format RX33 floppy
diskettes when using VMS or ULTRIX.
Using VMS

To format and initialize RX33 floppy diskettes using VMS, do
the following:
1. Insert the RX33 floppy diskette into the disk drive.
2. Enter the following command at the VMS $ prompt:
initialize/density=Kiouble

Note: This command may fail the first time. Repeat the command
if you receive an error message or if you receive a message that the
device you are using is offline,

Refer to the VMS documentation set for additional information
on the initialize/density= double command.
Using ULTRIX Version 4.1 or Higher
Note: If you are using a version of ULTRIX prior to ULTRIX Version
4,1, turn to page E-13 for instructions,

To format and initialize RK33 floppy diskettes using ULTRIX
Version 4.1 or higher, use the following rzdisk utility program.
For the purposes of this discussion we will assume that
your drive has been installed as special device file rrz5. Use
whatever address is convenient and available on your system.
To format a diskette,
1. Insert an RX33 floppy diskette into the drive.
2. Type the command line rzdisk -f /dev/rrz5c at the
ULTRIX prompt and press Return to invoke the rzdisk
utility program.

RX33 Floppy Disk Drive E-11

The indicator light on the front of the drive will glow red
as the drive accesses the diskette. In a few moments, the
following format option menu will appear on your screen:
Please enter one of the following format options:
1 - 1.44MB 3.5" HD diskette (18 sector, 80 cylinder, 2 head)
2 - 720KB 3.5" DD diskette (9 sector, 80 cylinder, 2 head)

3 - 1.2MB 5.25" HD DISKETTE (15 sector, 80 cylinder, 2 head)
4 - 400KB 5.25" SD DISKETTE (10 sector, 80 cylinder, 1 head)
5 - 360KB 5.25" SD DISKETTE (9 sector, 40 cylinder, 2 head)
6 - OTHER FORMAT TYPE (you supply format parameters)
7 - CANCEL FORMAT OPERATION
Format type:

Select option 3 to format an RX33K HD diskette. Enter it
at the prompt, and press Return. Your system will then
format the diskette.
Note: Use options 4 or 5 to format single density diskettes.

When the formatting operation is complete, use the ULTRIX
newfs command to build the file system on the diskette. Type
newfs -n /dev/rrz5c rx33 at the prompt and press Return.
The following is sample output received as a result of applying
this command to a diskette that has a 1.2MB, 15 sector-pertrack layout:
Warning: missing disk partition table
/dev/rrz5c: 2400 sectors in 80 cylinders of 2 tracks, 15 sectors
1.2Mb in 5 cyl groups (16 c/g, 0.25Mb/g, 32 i/g)
super-block backups (for fsck -b#) at:
32, 528, 992, 1488, 1952,

E-12 RX33 Floppy Disk Drive

Using Versions of ULTRIX Prior to ULTRIX Version 4.1

To format and initialize RX33 floppy diskettes using versions of
ULTRIX prior to ULTRIX Version 4.1, use the following rzdisk
utility program.
For the purposes of this discussion we will assume that
your drive has been installed as special device file rrz5. Use
whatever address is convenient and available on your system.
lb format a diskette,
1. Insert an RX33 floppy diskette into the drive.
2. Type the command line rzdisk -f /dev/rrz5c at the
ULTRIX prompt and press Return to invoke the rzdisk
utility program.
The indicator light on the front of the drive will glow red
as the drive accesses the diskette. In a few moments, the
following format option menu will appear on your screen:
Please enter one of the following format options:
1 - 1.44MB 3.5" HD diskette (18 sector, 80 cylinder, 2 head)
2 - 720KB 3.5" DD diskette (9 sector, 80 cylinder, 2 head)
3 - OTHER FORMAT TYPE (you supply format parameters)
4 - CANCEL FORMAT OPERATION
Format type:

Select option 3 for "other format type."

The following series of prompts for information appear on
the screen:
• Number of sectors
• Number of heads
• Number of cylinders
• Number of step pulses per cylinder
• Transfer rate (kbits per second)

RX33 Floppy Disk Drive E-13

Refer to the following table when answering the prompts.

Media
Type

Formatted
Capacity

Number
of
Sectors

HD
HD
HD/DD
HD/DD

1.2 Mbytes
720 Kbytes
360 Kbytes
400 Kbytes

15
9
9
10

Number
of
Heads
2
2
2
2

Number of
Cylinders

Number of
Step Pulses
per Cylinder

Transfer
Rate
(kbits per
second)

80
80
40
40

0
0
0
0

500
250
250
250

When the formatting operatioia is compkjte, use the IJLTRDC
newts conmrnanci to r>uild the £Lie system on the disk. Type
newfs -n /dev/rrz5c :rx33 at 1the prompt; and press Bteturn.
The following is sample output received as a result of applying
this command to a diskette that has a 1.2MB, 15 sector-pertrack layout:
Warning: missing disk partition table
/dev/rrz5c: 2400 sectors in 80 cylinders of 2 tracks, 15 sectors
1.2Mb in 5 cyl groups (16 c/g, 0.25Mb/g, 32 i/g)
super-block backups (for fsck ~b#) at:
32, 528, 992, 1488, 1952,

E-14 RX33 Floppy Disk Drive

TZK10 QIC Tape Drive
The TZK10 QIC (quarter-inch cartridge) tape drive is a halfheight, 5 1/4-inch streaming tape drive. This appendix tells you
how to
• Set SCSI ID jumpers on the TZK10 QIC tape drive
• Attach the internal BA42 expansion box SCSI signal and
power cables to the TZK10 QIC tape drive
• Use the TZK10 QIC tape drive
• Handle and store tape cartridges

TZK10 QIC Tape Drive F-1

Setting the SCSI ID Jumpers
Instead of SCSI ID switches, the TZK10 QIC tape drive uses
jumpers inserted on pins inside the middle connector on the
back of the drive to determine the SCSI ID number for the
drive.
Counting from the left side of the connector, the location
of jumpers on the seventh, eighth, and ninth sets of pins
determines the SCSI ID number. The seventh set of pins is
reserved for drive select ID 2, the eighth set for ID 1, and the
ninth set for ID 0.
Note: Jumpers located on the sixth and last sets of pins should
always be set to the in position. These jumpers are not related to
setting the SCSI ID.

Table F-l shows the SCSI ID jumper settings for the TZK10
QIC tape drive.
Figure F-l shows the SCSI ID jumpers set to SCSI ID
number 5.
Table F-l. SCSI ID Jumper Settings for the TZK10 QIC Tape Drive
SCSI ID
Number

ID 2
Jumper

ID 1
Jumper

IDO
Jumper

7
6
5
4
3
2
1
0

In
In
In
In
Out
Out
Out
Out

In
In
Out
Out
In
In
Out
Out

In
Out
In
Out
In
Out
In
Out

F-2 TZK10 QIC Tape Drive

Use these three sets of pins
to set the SCSI ID number.
(The jumpers shown here
are set to SCSI ID number
5, In Out In.)

WSEBAI65

Figure F-l. SCSI ID jumpers on the TZK10 QIC tape drive

TZK10 QIC Tape Drive

F-3

Attaching the Internal Expansion Box Cables to a Drive
Figure F-2 shows how to attach the expansion box internal
SCSI signal cable and power cable to a TZK10 QIC tape drive.
SCSI signal cable

Power cable

WSEBAI64

Figure F-2. Attaching the internal expansion box cables to a TZK10 QIC
tape drive

TZK10 QIC Tape Drive

Using a TZK10 QIC Tape Drive
TZK10 QIC Tape Cartridge
The TZK10 QIC tape drive uses a DC6320 or DC6525 or
equivalent tape cartridge.
Write-protect switch

Label

WSEBAI60

Figure F-3. A TZK 10 QIC tape cartridge

TZK10 QIC Tape Drive F-5

External Controls and Indicators
Figure F-4 shows the external controls and indicators on the
TZK10 QIC tape drive. Table F-2 explains how to interpret the
indicator light on the drive.
Cover-release button

Indicator light

WSEBAI47

Figure F-4. External controls and indicators on the TZK10 tape drive
Table F-2. Indicator Light on the TZK10 QIC Tape Drive
State

Meaning

Off

A tape is not present in the drive or the tape is
present but has been unloaded via software.
The tape is loaded,1
The tape is in motion
A drive fault has been detected.

Solid green
Blinking green
Solid yellow
1

The tape cartridge is automatically loaded upon insertion.

F-6 TZK10 QIC Tape Drive

Write-Protecting or Write-Enabling a Tape Cartridge
Tb prevent information on a tape from being written over, write
protect the cartridge. To do this, set the write-protect switch
with the arrow pointing toward the SAFE label on the tape
cartridge.
Tb write data to a tape, write-enable the cartridge. To do this,
set the write-protect switch with the arrow pointing away from
the SAFE label on the tape cartridge.
Write protected

Write enabled

WSEBAI51

Figure F-5. Write-protect and write-enable switch positions on a TZK10
QIC tape cartridge

TZK10 QIC Tape Drive

F-7

Inserting a Tape Cartridge into a Drive
Tb insert a tape cartridge into the drive,
1. Open the drive door by pressing the cover-release button.
2.

Insert the cartridge into the drive opening by positioning
the cartridge so the write-protect switch is in the forward
upper right corner.
Slide the cartridge straight into the drive until you feel
resistance.
Cover release button

WSEBAI48

Figure F-6. Inserting a tape cartridge into the TZK10 QIC tape drive

F-8 TZK10 QIC Tape Drive

Close the drive door.

WSEBAI49

Figure F-7. Closing the drive door on the TZK10 QIC tape drive

TZK10 QIC Tape Drive F-*

Removing a Tape Cartridge from a Drive
Tb remove a tape cartridge from the drive,
1. Check to see that the green indicator light on the front of
the drive cover is glowing solid or is off. This ensures the
tape cartridge is not in motion.
Note: The green indicator light may be off if the tape is present
but has been unloaded via software.

2. Press the cover-release button to open the drive door.
3. Pull the drive door down, grasp the cartridge and slide it
out of the drive.

F-10 T7K10 QIC Tape Drive

Cover release button

WSEBAI50

Figure F-8. Removing a tape cartridge from the TZK10 QIC tape drive

TZK10 QIC Tape Drive

F-ll

Handling and Storing Tape Cartridges
Incorrect handling and storing of tape cartridges can damage
them and cause loss of data. In turn, damaged cartridges can
damage the tape drive. The following precautions should be
taken:
• Do not drop tape cartridges. Doing so can damage the
cartridges.
• Store cartridges in their protective containers on edge or
stacked.
• Place cartridge labels in the space provided on the top of
the cartridge. Placing labels on the front, bottom, sides, or
rear of the cartridge can damage the tape drive.
• Keep cartridges out of extreme temperatures and away
from direct sunlight.
• Store cartridges away from magnetic fields, such as those
produced by motors, transformers, and video terminals and
monitors.

F-12 TZK10 QIC Tape Drive

G
RRD42 Compact Disc Drive
The RRD42 is a half-height, 5 1/4-inch, 600-megabyte compact
disc drive. This appendix tells you how to
• Select the mode of operation and set the SCSI ID jumpers
on the RRD42 compact disc drive
• Attach the internal BA42 expansion box SCSI signal and
power cables to the RRD42 compact disc drive
• Insert and remove a compact disc from a disc caddy.
• Use the RRD42 compact disc drive
• Handle and store compact discs

RRD42 Compact Disc Drive G-l

Setting the Mode Select and SCSI ID Jumpers
The RRD42 compact disc drive uses jumpers inserted on sets of
pins on the back of the drive to determine the mode of operation
and SCSI ID number for the drive.
The presence or absence of a jumper on the mode select set of
pins determines the mode of operation for the drive. If your
operating system is VMS or ULTRIX, the jumper should be in.
If your operating system is MS-DOS or SCO UNIX, the jumper
should be out. The drive is shipped with the mode jumper in.
The location of jumpers on the next three sets of pins
determines the SCSI ID number for the drive.
Table G-l shows the SCSI ID jumper settings for the RRD42
compact disc drive.
Figure G-l shows the mode select jumper in and the SCSI ID
jumpers set to SCSI ID number 4.
Table G-l. SCSI ID Jumper Settings for the RRD42 Compact Disc Drive
SCSI ID
Number

IDO
Jumper

ID 1
Jumper

ID 2
Jumper

7
6
5
4
3
2
1
0

In
Out

In
In
Out
Out
In
In
Out
Out

In
In
In
In
Out
Out
Out
Out

Out
In
Out
In
Out

6-2 RRD42 Compact Disc Drive

Mode select jumper

SCSI ID jumpers set to
ID number 4 (Out Out In)

WSEBAI66

Figure G-l. Mode select and SCSI ID jumpers on the RRD42 compact
disc

RRD42 Compact Disc Drive G-3

Attaching the Internal Expansion Box Cables to a Drive
When attaching the SCSI signal cable to the drive, match the
key on the cable connector with the notch in the connector
on the drive. To do this, twist the cable a half turn before
attaching it to the drive. Figure G-2 illustrates the location of
the key on the SCSI signal cable.
Figure G-3 shows how to attach the expansion box internal
SCSI signal cable and power cable to an RRD42 compact disc
drive.

Key

SCSI cable
connector

WSEBAI77

Figure G-2. The SCSI signal cable connector and key

6-4 RRD42 Compact Disc Drive

SCSI signal cable

Power cable

WSEBAI75

Figure G-3.

Attaching the internal expansion box cables to an RRD42
compact disc drive

RRD42 Compact Disc Drive 6-5

Using an RRD42 Compact Disc
Figure G-4 shows an RRD42 compact disc in its caddy.

Disc caddy
Compact disc

WSEBAI74

Figure G-4. An RRD42 compact disc

RRD42 Compact Disc Drive

Inserting a Compact Disc into a Caddy

Tb insert a compact disc into a caddy,
1. If there is a protective film on the outside of the disc caddy,
remove it.

Protective film

WSEBAI67

Figure G-5. Removing the protective film from a compact disc caddy

RRD42 Compact Disc Drive 6-7

Open the cartridge by pressing in on the tabs on the edge
of the cartridge and lifting up the cover (Figure G-6).
3. Pick up the disc by placing your fingers on the edges of it.
Be careful not to touch the surface of the disc.
4. Position the disc with the printed side upward, and set it
into the caddy (Figure G-7).
5. Close the lid by pressing down firmly on each corner,
locking the lid into place.

WSEBAI68

Figure G-6. Opening a compact disc caddy

G-8 RRD42 Compact Disc Drive

WSEBAI69

Figure G-7. Inserting a disc into a compact disc caddy

RRD42 Compact Disc Drive G-9

Removing a Compact Disc from a Caddy
Tb remove a compact disc from a caddy,
1. Open the caddy as shown in Figure G-6.
2. Remove the disc carefully by placing your fingers on the
edges of the disc and lifting it out of the cartridge.

G-10 RRD42 Compact Disc Drive

Using an RRD42 Compact Disc Drive
External Controls and Indicators
Figure G-8 shows the external controls and indicators on the
RRD42 compact disc drive. Note that audio playback may not
be supported by your operating system software.
Warning: The audio feature is meant for audio disc listening only.

Emergency
eject opening
Eject button
Busy indicator light

Headphone level control
Headphone jack
WSEBAI70

Figure G-8.

External controls and indicators on the RRD42 compact disc
drive

RRD42 Compact Disc Drive

Inserting a Disc Caddy into a Drive
Tb insert a compact disc caddy into the drive,
1. Position the disc caddy so the disc label faces upward and
the arrow on the top edge of the caddy faces the opening in
the drive.
2. Insert the caddy into the drive.

WSEBAI71

Figure 6-9. Inserting a compact disc caddy into an RRD42 compact
disc drive

G-12 RRD42 Compact Disc Drive

3. Use your finger to push the caddy all the way into the
drive.

WSEBAI72

Figure G-10. Pushing a caddy into an RRD42 compact disc drive

RRD42 Compact Disc Drive G-13

Removing a Disc Caddy from a Drive
Tb remove a compact disc caddy from the drive,
1. Make sure the expansion box power is on.
2. Press the eject button on the outside of the drive. After a
few seconds, the drive will partially eject the disc caddy
from the drive.
3. Remove the disc caddy from the drive.

Eject button

WSEBAI73

Figure G-11. Removing a compact disc caddy from an RRD42 compact
disc drive

G-14 RRD42 Compact Disc Drive

Handling and Storing Compact Discs
Incorrect handling and storing of compact discs can damage
them and cause loss of data. In turn, damaged compact discs
can damage the disc drive. The following precautions should be
taken:
• Do not drop the disc or caddy.
• The caddy's shutter automatically opens when it is inserted
into the drive. Do not open the shutter manually and touch
the disc.
• When transporting the drive, remove the caddy from the
drive.
• Keep the disc and caddy away from dust, direct sunlight,
high temperature, and high humidity.
• When a disc is dirty, clean it with a clean, lint-free cloth.
Wipe the disc from the center out. Do not use solvents,
such as benzene, thinner, commercial cleaners, or antiseptic
sprays.

RRD42 Compact Disc Drive G-15