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EK-INFOE-OM-B01

February 1993

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Document:	InfoTower Installation and Operating Information
Order Number:	EK-INFOE-OM
Revision:	B01
Pages:	46
Original Filename:

OCR Text

InfoTower
Installation and Operating Information
Order Number: EK-INFOE-OM. B01

First Printing, February 1993
Second Edition, April 1993
The information in this document is subject to change without notice and should not be
construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation
assumes no responsibility for any errors that may appear in this document.
The software described in this document is furnished under a license and may be used or copied
only in accordance with the terms of such license.
No responsibility is assumed for the use or reliability of software on equipment that is not
supplied by Digital Equipment Corporation or its affiliated companies.
Restricted Rights: Use, duplication, or disclosure by the U.S. Government is subject to
restrictions as set forth in subparagraph (c) (1) (ii) of the Rights in Technical Data and
Computer Software clause at DFARS 252.227-7013.
© Digital Equipment Corporation 1993.
All Rights Reserved.
The following are trademarks of Digital Equipment Corporation: DEC, Digital, RRD42, and the
DIGITAL logo.
All other trademarks and registered trademarks are the property of their respective holders.

This document was prepared using VAX DOCUMENT, Version 2.1.

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

vii

1 Overview
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1
1–2
1–3
1–4

2 Installation
Summary of Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Step One: Position the InfoTower. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Choosing the Right Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unpacking the Boxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Determining InfoTower Power Requirements . . . . . . . . . . . . . . . . . . .
Step Two: Verify InfoTower Cabinet Components. . . . . . . . . . . . . . . . . . .
Step Three: Prepare for the Installation. . . . . . . . . . . . . . . . . . . . . . . . . .
Step Four: Connect the Power Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Step Five: Connect SCSI Cables for InfoServer 100 System. . . . . . . . . . .
Step Six: Connect SCSI Cables for InfoServer 150 System. . . . . . . . . . . .
Step Seven: Connect other External Devices. . . . . . . . . . . . . . . . . . . . . .
Step Eight: Turn on the Power to the InfoTower Cabinet. . . . . . . . . . . . .
Step Nine: Turn on the Power to the InfoServer System. . . . . . . . . . . . .
Step Ten: Verify Drive Access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–1
2–1
2–2
2–2
2–3
2–3
2–4
2–5
2–6
2–10
2–13
2–15
2–15
2–15

iii

3 Adding Additional SCSI Drives
Configuring Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inserting Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–1
3–2
3–5

4 Troubleshooting
Problems and Suggested Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4–1

A Specifications
Functional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acoustic Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–1
A–2
A–2
A–3
A–4

B Related Documentation
C Field Replaceable Units
Index
Examples
2–1
2–2

Display for InfoServer System . . . . . . . . . . . . . . . . . . . . . . . .
SHOW DEVICE Display . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–15
2–16

InfoTower Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front View of the InfoTower Cabinet . . . . . . . . . . . . . . . . . . .
Rear View of the InfoTower Cabinet . . . . . . . . . . . . . . . . . . . .
InfoServer 100 System with an InfoTower Cabinet . . . . . . . .
Connecting InfoTower to an InfoServer 100 System . . . . . . . .
InfoServer 150 System with an InfoTower Cabinet . . . . . . . .
Connecting InfoTower to an InfoServer 150 System . . . . . . . .
Connecting Two InfoTowers to an InfoServer 150 System . . .

1–2
1–3
1–4
2–7
2–8
2–10
2–11
2–13

Figures
1–1
1–2
1–3
2–1
2–2
2–3
2–4
2–5

2–6
3–1
3–2
3–3

Connecting External Devices to the InfoTower Cabinets . . . .
Drive Mounting Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Properly Seating Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driver Frame Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–14
3–3
3–4
3–5

Drive Switch Settings for the InfoServer 100 System . . . . . .
Drive Switch Settings for the InfoServer 150 System . . . . . .
Drive Switch/Jumper Settings . . . . . . . . . . . . . . . . . . . . . . .
Problems and Suggested Solutions . . . . . . . . . . . . . . . . . . . . .
Functional Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Characteristics - Electrical Specifications . . . . . . . . . . .
Output Characteristics - Electrical Specifications . . . . . . . . .
Acoustic Values1 (Declared Values per ISO 9296 and ISO
7779) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Schallemissionswerte1 (Werteangaben nach ISO 9296 und
ISO 7779/DIN EN27779) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
InfoTower FRUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–9
2–12
3–1
4–1
A–1
A–2
A–2
A–3

Tables
2–1
2–2
3–1
4–1
A–1
A–2
A–3
A–4
A–5
A–6
B–1
C–1

A–4
A–4
B–1
C–1

Preface
This guide describes how to install and troubleshoot the InfoTower cabinet. It
also contains configuration rules and management information.

Organization
This manual contains four chapters and two appendixes.
Chapter 1, Overview—Describes the features of the InfoTower cabinet. It
identifies and describes the cabinet components.
Chapter 2, Installation—Describes the configuration rules for connecting an
InfoTower cabinet to an InfoServer 100 or 150 system. It describes two types
of physical configurations: desktop and tower. It describes how to position the
unit, prepare the unit for installation, connect the cables, and power up the
InfoTower cabinet and InfoServer system.
Chapter 3, Adding Additional SCSI Drives—Describes how to add
additional drives to the system.
Chapter 4, Troubleshooting—Describes problems and lists the suggested
solutions. It includes installation and removal information on CD ROM drives.
Appendix A, Specifications—Contains the electrical and mechanical
specifications for operating the expander cabinet.
Appendix B, Related Documentation—Contains a listing of related
documents and ordering information.
Appendix C, Field Replaceable Units—Contains a listing of the field
replaceable units (FRUs).

vii

Conventions
The following conventions are used in this guide:
Convention

Meaning

Note

Provides general information.

Caution

Provides information to prevent damage to equipment and software.

Warning

Provides information to prevent personal injury.

bold text

Bold text represents user input. For example:
DECbridge> Set Protocol

parameters

Parameters are italicized. For example:
SHOW PORT slot number

[]

Characters within brackets represent optional parameters. For
example:
SHOW PORT [hub number, slot number]
Symbol for caution.

Symbol for fault.

viii

1
Overview
This chapter lists the features and components of the InfoTower cabinet.
Figure 1–1 shows the InfoTower cabinet.

Features
The features of the InfoTower are as follows:
•

InfoServer-100 and
InfoServer-150 compatible

•

Eight SCSI drive bays

•

Desktop and tower
configurations

•

Locked environment for SCSI drives

•

Quick and easy installation and removal of
drives

•

Hinged, see-through cabinet door

•

200 watt power supply system

Overview 1–1

Overview
Cabinet Description

Cabinet Description
The InfoTower cabinet is a hardware-only product. It provides additional SCSI
drive capacity for either an InfoServer 100 or InfoServer 150 system. You can
access SCSI drives in the InfoTower as you would internal InfoServer system
drives.
Figure 1–1 InfoTower Cabinet

Sc al e 3/ 16
LJ-02640-TI0

1–2 Overview

Overview
Cabinet Description

Front View
Figure 1–2 shows the front view of the InfoTower cabinet.
Figure 1–2 Front View of the InfoTower Cabinet

3
1
4
5

SCALE 3/16
LJ-02513-TI0

Location

Description
Cabinet door lock and keys
Bezels for empty drive slots

One to seven internally-mounted SCSI drives, including
mounting frames

SCSI internal connector

Power interface

Overview 1–3

Overview
Cabinet Description

Rear View
Figure 1–3 shows the rear view of the InfoTower cabinet.
Figure 1–3 Rear View of the InfoTower Cabinet
1
5
6

2
3
115

Scale 3/16
LJ-02648-TI0

Location

Description
Exterior SCSI interface port with terminator
Power supply on/off switch

Fan

Exterior SCSI interface port without terminator

Internal SCSI backplane

dc power backplane

1–4 Overview

ac voltage select

2
Installation
This chapter describes how to install the InfoTower cabinet.

Summary of Installation
The following summarizes the steps to install an InfoTower cabinet. Each of
these steps is described in more detail in the sections that follow:
1. Position the InfoTower
2. Verify InfoTower cabinet components
3. Prepare for the installation
4. Connect the power cable
5. Connect the SCSI cables for the InfoServer 100 system
6. Connect the SCSI cables for the InfoServer 150 system
7. Connect other external devices
8. Turn on the power to the InfoTower cabinet
9. Turn on the power to the InfoServer system
10. Verify SCSI drive access

Step One: Position the InfoTower.
Due to the length of the SCSI cable (three-foot cable) and the power cable,
position the InfoTower cabinet within three feet of the InfoServer system and
within the length of the power cable to a power source outlet.

Installation 2–1

Installation
Step One: Position the InfoTower.

Choosing the Right Location
Use the following guidelines to choose the best location for your InfoTower
cabinet. Choosing an optimal operating environment is crucial in keeping your
system operating at its best.
•

Carefully read all installation instructions before you turn on the power.

•

Keep the temperature between 10 to 35 degrees C (50 to 98 degrees F).

•

Keep the relative humidity between 10 to 85 percent.

•

Keep the air well circulated to prevent excess heat and dust from
accumulating.

•

Keep your equipment away from heaters, photocopiers, direct sunlight, and
abrasive particles.

•

Before you set up your system, select a surface that is large enough to hold
the system unit. Your desk or work table is a good choice.

•

Keep the area clean. Do not place food or liquid on or near your equipment,
and do not place your system unit directly on the floor. Dust and dirt will
damage the system components.

•

Keep air vents clear on the front and rear of the system unit for proper
ventilation. Blocking the air vents can cause the system unit to overheat.

•

Connect your system to a dedicated grounded circuit.

•

If you have several pieces of equipment that need to be plugged into an
electrical outlet, then use a grounded power strip. Many power strips come
with an on/off switch and a surge protector.
Do not exceed the circuit power capacity.

•

To avoid damaging equipment that has been moved inside from a cold
environment, let the equipment warm to room temperature before you turn
on the power.

Unpacking the Boxes
Caution
Because of the weight of the system unit, 56 lbs (25.45 kg), two people
should lift the equipment out of the shipping carton and place it on a
work surface.

When unpacking the boxes, keep the contents of each box separate from the
others.
2–2 Installation

Installation
Step One: Position the InfoTower.

Determining InfoTower Power Requirements
The InfoTower cabinet uses a standard switch selectable 110/220 V, 50/60 Hz,
ac power source. To protect the InfoTower and its internal components, you
should use an approved surge suppresser between the power source and the
cabinet.

Step Two: Verify InfoTower Cabinet Components.
After you have selected a proper location for the InfoTower cabinet and have
carefully unpacked the box contents, check that all components have been
included in the shipment. Verify that the number and types of SCSI drives
mounted in the cabinet correspond to the order number and types of drives
that were ordered.
Ensure that the accessories bag contains the following items:
•

Two keys

•

Four rubber feet

•

One power cord

•

Two external SCSI cables: BC56H-03, and BC19J-03

•

One terminator

•

One template (guide showing how to position the feet)

•

InfoTower Installation and Operating Information

•

RRD42 Disc Drive Owner’s Manual

•

Four or seven CD ROM caddies

Installation 2–3

Installation
Step Three: Prepare for the Installation.

Step Three: Prepare for the Installation.
To prepare for the installation of the InfoTower cabinet, perform the following
steps:
1. Make sure that all users terminate their sessions on the InfoServer system.
If there are users on the system, then lock out any subsequent accesses
by entering the SET SERVER STATE SHUT command at the InfoServer
system console.
Caution
Never install or remove SCSI drives if the power to either the
InfoTower cabinet or InfoServer system is on. Doing so can crash the
InfoServer system and cause damage to any attached devices, including
SCSI drives in the InfoTower cabinet.

2. Turn the power off on the InfoServer system.
3. Turn the power off on any connected external devices.
4. Move the InfoTower cabinet into the desktop or tower (vertical) position.
Warning
For the vertical installation of the InfoTower, use an enclosure
mounting stand.

Warnung
Bei der vertikalen installation des InfoTowers, verwenden Sie einen
Ständer für das Gehäuse.

Avertissement
Pour une installation veticale de l’InfoTower, utilisez un pied pour
soutenir le boitier.

2–4 Installation

Installation
Step Three: Prepare for the Installation.
Cuidado
Para instalación vertical de la InfoTower usa usted una plataforma
montada en un recinto.
For desktop orientation, use the template to attach the four rubber feet.
5. Unlock and open the cabinet door. Remove the protective insert. Save the
insert for future shipping.
Note
When setting up a desktop unit, remove the key after unlocking the
door so that it will open completely.

6. Visually inspect each SCSI drive to ensure that it is seated properly. See
Figure 3–2 and Figure 3–3.

Step Four: Connect the Power Cable.
Caution
Check the setting of the voltage select switch and ensure that it
matches your site requirements.

To connect the power cable:
1. Locate and remove the label over the power connector.
2. Check the power switch setting.
3. Plug in the power cable.

Installation 2–5

Installation
Step Five: Connect SCSI Cables for InfoServer 100 System.

Step Five: Connect SCSI Cables for InfoServer 100 System.
Note
If you have an InfoServer 150 system, proceed to Step Six: Connect
SCSI Cables for the InfoServer 150 system.

The InfoServer 100 system has one internal hard drive and up to two internal
CD-ROM drives. The internal hard disk and one of the CD-ROM drives reside
on the A bus. The second CD-ROM drive, if present, resides on the B bus.
Up to six additional SCSI devices can be added to the B bus. The six external
devices can be any one of the following combinations:
•

Six SCSI drives in the InfoTower cabinet

•

A combination of SCSI drives in the InfoTower cabinet and external SCSI
devices

Figure 2–1 shows the InfoServer 100 system with the InfoTower in the desktop
and tower configurations.
The InfoTower cabinet uses a BC19J-03 cable to connect to the InfoServer
100. You connect one end of the cable to the SCSI port on the back of the
InfoTower cabinet and the other end to the external SCSI port on the back of
the InfoServer 100.

2–6 Installation

Installation
Step Five: Connect SCSI Cables for InfoServer 100 System.
Figure 2–1 InfoServer 100 System with an InfoTower Cabinet

Tower Confi g u ra ti o n

SCALE = 3/16

Desktop Co n fi g u ra ti o n

1 3 /1 6 O R .8 1 2 5

LJ-02639-TI0

Installation 2–7

Installation
Step Five: Connect SCSI Cables for InfoServer 100 System.
Figure 2–2 shows the connections from an InfoTower cabinet to an InfoServer
100 system. The InfoServer 100 has two SCSI buses: A and B. The A bus
cannot be expanded. The B bus can be expanded using the external SCSI port.
When setting the SCSI address, refer to Table 2–1.
Note
You can use one of the two external SCSI connectors on the rear of the
InfoTower cabinet to connect the InfoTower to the InfoServer system.
The other connector can be used to connect external devices.

Figure 2–2 Connecting InfoTower to an InfoServer 100 System

115

S c a le d 5 /3 2
Re d u ce d Ag a in 9 0 %

LJ-02644-TI0

2–8 Installation

Installation
Step Five: Connect SCSI Cables for InfoServer 100 System.
Table 2–1 lists the drive switch settings for the InfoServer 100 system.
Table 2–1 Drive Switch Settings for the InfoServer 100 System
Device

Bus

SCSI
Address

Description

DK0:

Not available

DK1:

Hard disk

DK2:

Internal CD ROM drive

DK3:

Not available

DK4:

Not available

DK5:

Not available

DK6:

SCSI controller

DK7:

Not available

DK0:

Available

DK1:

Available

DK2:

Available

DK3:

Available

DK4:

Available

DK5:

Internal CD ROM drive

DK6:

SCSI controller

DK7:

Available

Installation 2–9

Installation
Step Six: Connect SCSI Cables for InfoServer 150 System.

Step Six: Connect SCSI Cables for InfoServer 150 System.
The InfoServer 150 system contains an internal hard disk and one CD-ROM.
Figure 2–3 shows the InfoServer 150 system with the InfoTower in the desktop
and tower configurations.
Figure 2–3 InfoServer 150 System with an InfoTower Cabinet

T ower C onf i gurat i on
SCALE = 3/16

Desktop C onf i gurat i on

2–10 Installation

1 3 /16 OR .8125

LJ-02638-TI0

Installation
Step Six: Connect SCSI Cables for InfoServer 150 System.
The InfoTower cabinet uses a BC56H-03 cable to connect to an InfoServer
150 system. You can connect the cabinet to either the A or B SCSI bus of the
InfoServer system. You can connect a maximum of five external devices to
the InfoServer system A bus and a maximum of seven external devices to the
InfoServer system B bus. Facing the rear of the InfoServer 150 system, the A
port is on the left and the B port on the right. Figure 2–4 shows the connection
from port B of the InfoServer 150 system to the InfoTower cabinet.
Figure 2–4 Connecting InfoTower to an InfoServer 150 System

115

S c a le d 5 /3 2
RE DUCE D AGAIN 90%

LJ-02643-TI0

Note
You can use one of the two external SCSI connectors on the rear of the
InfoTower cabinet to connect the InfoTower to the InfoServer system.
The other connector can be used to connect external devices.

Installation 2–11

Installation
Step Six: Connect SCSI Cables for InfoServer 150 System.
When setting the SCSI addresses, refer to Table 2–2.
Table 2–2 Drive Switch Settings for the InfoServer 150 System
Device

Bus

SCSI
Address

Description

DK0:

Available

DK1:

Internal hard disk

DK2:

Internal CD ROM drive

DK3:

Available

DK4:

Available

DK5:

Available

DK6:

SCSI controller

DK7:

Available

DK0:

Available

DK1:

Available

DK2:

Available

DK3:

Available

DK4:

Available

DK5:

Available

DK6:

SCSI controller

DK7:

Available

2–12 Installation

Installation
Step Six: Connect SCSI Cables for InfoServer 150 System.
Figure 2–5 shows two InfoTower cabinets connected to the InfoServer 150
system.
Figure 2–5 Connecting Two InfoTowers to an InfoServer 150 System

Sc a l e d 5 / 3 2

115

Sc a l e d a g a i n 6 8 %

LJ-02645-TI0

Step Seven: Connect other External Devices.
Note
You can use one of the two external SCSI connectors on the rear of the
InfoTower cabinet to connect the InfoTower to the InfoServer system.
The other connector can be used to connect external devices.

Figure 2–6 shows the external SCSI connectors on the InfoTower cabinets.
Connect the InfoTower cabinets directly to the InfoServer system. Connect the
external devices to the InfoTower cabinets. You must assign a unique SCSI ID
address to each device on the SCSI bus. The order of devices does not matter,
except with a tape drive, which should be the last device in the chain. You
must terminate the last device on the bus.

Installation 2–13

Installation
Step Seven: Connect other External Devices.
Figure 2–6 Connecting External Devices to the InfoTower Cabinets

115

T o E xte rn a l
D evice

T o Info S e rv e r
S ystem

LJ-02647-TI0

To connect other external devices, perform the following steps:
1. Make sure that the SCSI addresses of the external devices do not conflict
with the labeled addresses of the SCSI drives contained in the InfoTower
cabinet.
2. Remove the terminator from the SCSI port on the back of the InfoTower
cabinet that is not connected to the InfoServer system.
3. Connect the SCSI cable attached to the first external device in the chain to
the SCSI port on the InfoTower cabinet.
4. Check other connections in the chain to ensure the connections are secure
and that the last device in the chain is terminated.

2–14 Installation

Installation
Step Eight: Turn on the Power to the InfoTower Cabinet.

Step Eight: Turn on the Power to the InfoTower Cabinet.
Turn the power on to the cabinet. The power switch is located near the fan
at the rear of the cabinet. Turn the power on to any attached external SCSI
devices.

Step Nine: Turn on the Power to the InfoServer System.
Turn on the power to the InfoServer system. Example 2–1 shows the
InfoServer system console displays. When booting is complete, a password
prompt will appear on the console. Refer to Chapter 4 if the system fails to
boot.
Example 2–1 Display for InfoServer System
KA41-2 V1.0
F_..E...D...C...B...A...9_..8...7...6...5...4_..3_..2_..1...
? E 0040 0000.0005
? C 0080 0000.4001
83 BOOT SYS
-DKA100
DEC InfoServer 150
Copyright (c) 1991 Digital Equipment Corporation
%ESS-I-INITDisc, Disc Initialization complete, 14 devices found

Step Ten: Verify Drive Access.
At the InfoServer system console, enter the SHOW DEVICE command to
ensure that all of the connected drives are accessible by the InfoServer system.
Example 2–2 shows the SHOW DEVICE command display.

Installation 2–15

Installation
Step Ten: Verify Drive Access.
Example 2–2 SHOW DEVICE Display
InfoServer> show device
Device
Name

Device
State

Device
Type

Device
Address

Dev. Size/
Record Num.

Volume
Label

DK1:
DK2:
DK8:
DK9:
DK10:
DK11:
DK12:
DK13:
DK15:

On
On
On
On
On
On
On
On
On

Hard Disk
Compact Disc
Compact Disc
Compact Disc
Compact Disc
Compact Disc
Compact Disc
Compact Disc
Compact Disc

A/001
A/002
B/000
B/001
B/002
B/003
B/004
B/005
B/007

237588
0
891672
1218000
400780
891680
1218000
0
1171212

UNKNOWN
OPTMOD
CDDOC04MAR21
SMC
CD_DOC_82861
CDDOC04MAR22
UNKNOWN

If all the devices are displayed, then there are no SCSI ID conflicts. Refer to
Chapter 4 if any of the the SCSI drives are not displayed.
The InfoTower is manufactured with device addresses starting at address
000. The address 000 unit is always placed either in the front bottom slot, if
positioned in the tower orientation, or in the front right most slot, if positioned
in the desktop orientation.
Device addresses increment by one, up to the maximum number of devices in
the enclosure. Address 006 does not increment by one, because it is reserved
for the system controller.

2–16 Installation

3
Adding Additional SCSI Drives
This chapter describes how to add additional drives to the InfoServer system
and InfoTower cabinet. (The H056-drive mounting bracket option is purchased
separately.)
Note
The power supply used in the InfoTower requires a minimum load of
3A on the +5V source for proper regulation. Ensure that the devices
installed in the cabinet present a load to satisfy this requirement.

Configuring Drives
When configuring a drive, refer to the configuration information provided
with the drive. SCSI device addresses are generally set in accordance with
Table 3–1. Always turn the power off before installing the drive. Always check
to see which device addresses are in use before adding devices.
Table 3–1 Drive Switch/Jumper Settings
Device
Address

ID1

ID2

ID3

1 = On/In
0 = Off/Out

(continued on next page)

Adding Additional SCSI Drives 3–1

Adding Additional SCSI Drives
Configuring Drives
Table 3–1 (Cont.) Drive Switch/Jumper Settings
Device
Address

ID1

ID2

ID3

N/A

1 = On/In
0 = Off/Out

Inserting Drives
With the power off to both the InfoServer system and InfoTower cabinet,
perform the following steps to insert a drive into the InfoTower cabinet:
1. Check that the SCSI ID jumper/switches are set correctly.
2. Mount the SCSI device into the drive mounting bracket as follows:
a. Position the SCSI device into the drive mounting bracket as shown in
Figure 3–1.

3–2 Adding Additional SCSI Drives

Adding Additional SCSI Drives
Inserting Drives
Figure 3–1 Drive Mounting Bracket

LJ-02598-TI0

Note
The installation of non-Digital or Digital qualified devices in
combinations not tested by Digital, may result in configurations that do
not comply with EMC regulations or product safety requirements.

b. Connect the 50-pin SCSI cable to the SCSI device.
c.

Plug the dc power connector into the SCSI device.

d. Position the SCSI device such that the screw holes of the device and
the bracket line up. Use the appropriate screws to attach the drive
mounting bracket to the SCSI device.
3. Unlock and open the InfoTower cabinet door.
4. Remove a bezel, if necessary, and align the drive mounting frame with any
vacant drive slot within the InfoTower cabinet.

Adding Additional SCSI Drives 3–3

Adding Additional SCSI Drives
Inserting Drives
5. Gently push the drive into the vacant slot until its front face is flush with
all other drives in the InfoTower cabinet as shown in Figure 3–2.
Figure 3–2 Properly Seating Drives

S CAL E=9/32

LJ-02642-TI0

6. To ensure proper SCSI bus and power connectivity, check to see that the
drive frame lever is in position and that the drive is locked into its slot as
shown in Figure 3–3.

3–4 Adding Additional SCSI Drives

Adding Additional SCSI Drives
Inserting Drives
Figure 3–3 Driver Frame Lever

T o Rel eas e

LJ-02641-TI0

7. Turn the power on for both the InfoServer system and the InfoTower.

Removing Drives
Note
Eject any removable media from the drive before performing the
following procedures.

With the power off to both the InfoServer system and InfoTower cabinet,
perform the following steps to remove a drive from the InfoTower cabinet:
1. Unlock and fully open the InfoTower cabinet front door.
2. To release and remove the SCSI device, move the drive frame lever to the
left (Figure 3–3).
3. Hold onto the lever and the exterior of the drive and gently pull the drive
out of the InfoTower cabinet.

Adding Additional SCSI Drives 3–5

Adding Additional SCSI Drives
Removing Drives
4. To remove the SCSI device from the drive mounting bracket, perform the
following steps:
a. Remove the screws on the sides of the bracket holding the SCSI device
in place.
b. Disconnect the 50-pin SCSI cable and unplug the dc power connector
as shown in Figure 3–1.

3–6 Adding Additional SCSI Drives

4
Troubleshooting
This chapter describes how to troubleshoot the InfoTower cabinet.

Problems and Suggested Solutions
Table 4–1 lists problems and suggested solutions when troubleshooting an
InfoTower cabinet:
Table 4–1 Problems and Suggested Solutions
Problem

Solution

InfoTower does not
power on (fan is not
turning).

Check the following:
•
•

Power connections to InfoTower cabinet and power
source.
Power outlet at power source with another device.
If the problem still exists, then perform the following:
•

Replace ac power cable.

•

Replace power supply unit.

InfoServer system
boot process does not
recognize an installed
SCSI drive.

Check the SCSI ID jumper settings. If the problem still
exists, then power up the InfoTower and InfoServer system
and reboot the system.

InfoServer system does
not recognize the bus.

Check the following:
•

Bus termination.

•

SCSI cable connection.

•

Power to InfoTower cabinet.
(continued on next page)

Troubleshooting 4–1

Troubleshooting
Problems and Suggested Solutions
Table 4–1 (Cont.) Problems and Suggested Solutions
Problem

Solution

InfoServer system does
not boot fully.

Follow suggestions for when the InfoServer system does not
recognize an installed SCSI drive.

CD ROM drive does not
accept a disc.

Check for the following conditions:

CD ROM drive does not
return a disc.

4–2 Troubleshooting

•

Power to the drive is present.

•

Drive is empty.

•

Drive is seated properly.

•

Disc is properly inserted into a CD disc caddy.

Depress the ejection button longer. Check for the following
conditions:
•

Drive is not empty.

•

Drive is seated properly.

A
Specifications
Functional
Table A–1 lists the functional specifications for the InfoTower cabinet.
Table A–1 Functional Specifications
Specification

Value or Description

System enclosure

Desktop and Tower

Storage capability

Seven 5.25" half-height SCSI devices

Interface

SCSI

Nominal ac voltage

120/240 switch selectable

Power source phasing

Single phase

Nominal frequency

50 Hz - 60 Hz

Voltage ranges

90 V - 135 V
180 V - 265 V

Line frequency tolerance

47 Hz - 63 Hz

Maximum ac running
current

5 A @ 115 V
3 A @ 230 V

Maximum power
consumption

307 W

Height

17.78 cm (7.0 in)

Width

43.18 cm (17.0 in)

Depth

43.18 cm (17.0 in)

Weight

25.45 kg (56 lbs) with 7 CD ROMs; 15.45 kg (34 lbs) without
CD ROMs
(continued on next page)

Specifications A–1

Specifications
Functional
Table A–1 (Cont.) Functional Specifications
Specification

Value or Description

Non-condensing
maximum operating
altitude

2.4 KM (8000 feet)

Physical
Table A–2 lists the physical specifications for the InfoTower cabinet.
Table A–2 Physical Specifications
Specification

Operating

Non-Operating

Ambient temperature

10 - 35 degrees C

-40 - 66 degrees C

Relative humidity

10% - 85%

10% - 95% (packaged)
non-condensing

Maximum wet bulb

28 degrees C (82 degrees F) 32 degrees C (90 degrees F)
(non-condensing)
(packaged) (non-condensing)

Altitude

8,000 feet

16,000 feet

Heat dissipation

1,050 BTU/h

N/A

Temperature gradient

11 degrees C/hr (20
degrees F/hr)

20 degrees C/hr (36 degrees F/hr)

Input Electrical
Table A–3 lists the input electrical specifications for the InfoTower cabinet.
Table A–3 Input Characteristics - Electrical Specifications
Specification

Value or Description

Line voltage

90 - 135 V ac, 179 - 265 V ac (switch selectable)

Line frequency

47 - 63 Hz

Line current

8 A max. @ 90 V ac including 3A auxiliary
6 A max. @ 180 V ac including 2A auxiliary

Power consumption

60 W @ min. load
(continued on next page)

A–2 Specifications

Specifications
Input Electrical
Table A–3 (Cont.) Input Characteristics - Electrical Specifications
Specification

Value or Description

Apparent power

462 VA @ max. load, 120 V ac range
507 VA @ max. load, 220 V ac range

Power factor

Inrush current

13.6 A @ 120 V ac, 9.9 A @ 220 V ac

Efficiency

65%

Output Electrical
Table A–4 lists the output electrical specifications for the InfoTower cabinet.
Table A–4 Output Characteristics - Electrical Specifications
Nominal

Load Current

Regulation Tolerance

Output Voltage

Max./Min.

5 V dc

20 A / 3 A

5.25 V / 4.8 V

12 V dc

8A/0A

12.72 V / 11.40 V

-5 V dc

0.5 A / 0 A

-5.50 V / -4.50 V

-12 V dc

0.5 A / 0 A

-13.20 V / -10.80 V

Specifications A–3

Specifications
Acoustic Values

Acoustic Values
Table A–5 and Table A–6 list the acoustic values for the InfoTower cabinet.
Table A–5 Acoustic Values1 (Declared Values per ISO 9296 and ISO 7779)
Sound Power Level

Sound Pressure Level

LWAd , B

LpAm , dBA
Bystander Positions

Idle

Operate

Idle

Operate

SZ18Z-AA with 0 x
RRD42

4.7

SZ18A-CA/3 with 4 x
RRD42

4.7

4.8

SZ18A-DA/3 with 7 x
RRD42

4.7

4.8

Table A–6 Schallemissionswerte1 (Werteangaben nach ISO 9296 und ISO
7779/DIN EN27779)
Schalleistungspegel

Schalldruckpegel

LWAd , B

LpAm , dBA
Zuschauerpositionen

Leerlauf

Betrieb

Leerlauf

Betrieb

SZ18Z-AA mit 0 x
RRD42

4,7

SZ18A-CA/3 mit 4 x
RRD42

4,7

4,8

SZ18A-DA/3 mit 7 x
RRD42

4,7

4,8

1
1

Current values for specific configurations are available from Digital representatives.
1 B = 10 dBA.
Aktuelle Werte für spezielle Ausrüstungsstufen sind über die Digital Equipment
Vertretungen erhältlich. 1 B = 10 dBA.

A–4 Specifications

B
Related Documentation
Consult your Digital Sales representative for information on obtaining the
documents listed in Table B–1.
Table B–1 Related Documents
Title

Order Number

InfoServer System Operations Guide

AA-PJXJA-TE

InfoServer 150 Installation and Owner’s Guide

EK-INFSV-OM

InfoServer 100 Installation and Owner’s Guide

EK-DIS1K-IN

RRD42 Disc Drive Owner’s Manual

EK-RRD42-OM