Digital Equipment SZ106 Manual

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SZ106 Storage Subsystem
User and Installation Guide
EK–SZ106–IN–001
Digital Equipment Corporation

First Edition, July 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.
Copyright © Digital Equipment Corporation 1992
All Rights Reserved.
Printed in U.S.A.
FCC NOTICE: The equipment described in this manual 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 when operated in a commercial environment. Operation of this equipment in
a residential area may cause interference, in which case the user at his own expense may
be required to take measures to correct the interference.
The following are trademarks of Digital Equipment Corporation: CompacTape, TK, TZ,
VAX, VMS, and the DIGITAL logo.

Contents
Preface v
1 User Information
1.1 Introduction...................................... 1–1
1.2 Specifications..................................... 1–3
1.3 Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
2 Physical Installation
2.1 SitePlanning..................................... 2–1
2.1.1 Space Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
2.1.2 Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
2.1.3 Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . 2–1
2.2 Setting the SCSI ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
2.2.1 Connecting the SCSI Signal Cable . . . . . . . . . . . . . . . . . . . 2–4
2.2.2 Terminating the SCSI Bus . . . . . . . . . . . . . . . . . . . . . . . . . 2–4
2.2.3 Connecting the Power Cord . . . . . . . . . . . . . . . . . . . . . . . . 2–4
3 Acceptance Testing
3.1 Power-on Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–1
4 Operation
4.1 Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1
iii

iv Contents
Figures
1–1 SZ106 Storage Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
2–1 SZ106RearView .................................. 2–5
Tables
1–1 Specifications..................................... 1–3
2–1 ............................................... 2–3

Preface
Manual Structure
This guide includes four chapters that provide the following information
about the SZ106 Storage Subsystem.
• User Information
• Physical Installation
• Acceptance Testing
• Operation
v

1
UserInformation
1.1 Introduction
The SZ106 storage subsystem (Figure 1–1):
• Can be added to any installation that uses conventional ac power
• Does not require any special site preparation
1–1

1–2 User Information
Figure 1–1 SZ106 Storage Subsystem
SHR-X0177A_91-DG

User Information 1–3
1.2 Specifications
The following table lists the specifications of the SZ106 storage
subsystem.
Table 1–1 Specifications
Characteristic SZ106 Storage Subsystem
Data backup
capacity 42.0 GB
Performance 800 KB/s sustained data rate
Power requirements 100-120/220-240 Vac (50/60 Hz)
Weight 90 kg (170 lb)
Height 71.12 cm (28 in)
Width 43.18 cm (17 in)
Length 86.36 cm (34 in)
Communications
interface SCSI bus
Environmental
standard (operating) 10°C to 40°C (50°F to 104°F)
20 to 80% RH
Environmental
standard
(nonoperating)
–40°C to 66°C (–40°F to 150.8°F)
10 to 90% RH
EMI certification Meets applicable FCC standards for Class A devices
Safety certification Meets UL, CSA, and IEC standards
Power consumption 100 W
1.3 Related Documentation
See the Tx867 Series Magazine Tape Subsystem Owner’s Manual (EK-
TX867-OM) for information on the TZ867 magazine tape subsystem
contained in the SZ106 subsystem.

2
PhysicalInstallation
2.1 Site Planning
Follow the requirements in this section to prepare a site for the SZ106
subsystem.
2.1.1 Space Requirements
Leave enough space to remove the magazine tape subsystem from the
front of the cabinet (about 1 meter).
2.1.2 Power Requirements
The subsystem can operate from 100 to 120 Vac at 60 Hz, or from 220 to
240 Vac at 50 Hz.
2.1.3 Environmental Requirements
The SZ106 conforms to a modified class A environment (general offices
and workstations).
When the SZ106 is:
• Operating, the temperature should range from 10°C to 40°C with
relative humidity of 20 to 80% noncondensing
• Not operating, the temperature should range from –40°C to 66°C with
relative humidity of 10 to 90%
2–1

2–2 Physical Installation
2.2 Setting the SCSI ID
Your system uses the SCSI ID to identify, or address, the SZ106
subsystem. Use these guidelines when configuring the SZ106 for use
on your system:
If you are installing the
SZ106 as. . . Then. . .
The only SCSI device on the
bus You can leave the SCSI ID factory setting as is.
One of multiple SCSI devices
on the bus Be sure to use a SCSI ID that is unique from
any other device or system ID on the SCSI bus.
The last or only device on the
SCSI bus You must terminate the bus by installing a
terminator.
1. If you need to change the SCSI ID for the SZ106, be sure to choose a
unique ID number between 0 and 7.
NOTE
Refer to the remote ID label next to the remote ID switch on
the SZ106 rear panel to see what each switch does.

Physical Installation 2–3
Use Table 2–1 to determine the SCSI ID switch settings. Switch 2 is
the most significant bit (MSB) and switch 4 is the least significant bit
(LSB):
Table 2–1
SCSI ID Switch 2 Switch 3 Switch 4
0 Off Off Off
1 Off Off On
2 Off On Off
3 Off On On
4 On Off Off
5 On Off On
6 On On Off
7 On On On
2. To set the SCSI ID: Use a pen to push on the the three rightmost
switches of the remote ID switch (top rear panel of the SZ106).
Keep in mind:
• If a setting is 1 (ON), make sure the upper side of the switch is
pressed in.
• If a setting is 0 (OFF or OPEN), ensure the lower side of the
switch is pressed in.
CAUTION
Never use a pencil to press the switches on the remote ID
switch. Use only a pen.
3. If your system:
• Generates parity, the SZ106 can check for correct parity on the
SCSI bus.
• Does not generate parity, you can disable parity checking on the
SZ106 subsystem. To do so, set the DISABLE PARITY switch to
ON by pressing down on the upper side of the switch with a pen.

2–4 Physical Installation
4. Place a decal identifying the SCSI ID number on the front of the
SZ106 subsystem just below the loader fault indicator.
2.2.1 Connecting the SCSI Signal Cable
The SZ106 storage subsystem contains one, 9-foot SSCI cable (PN:
BC56H-09).
To connect the SCSI signal cable:
1. Connect one end of the SCSI cable to the upper SCSI signal connector
on the SZ106 rear panel (Figure 2–1).
2. Snap the wire cable clamps into place to secure the cable.
3. Connect the other end of the SCSI signal cable to the SCSI connector
on your system.
See your system documentation for system SCSI connections.
2.2.2 Terminating the SCSI Bus
If the SZ106 is the last or only device on the SCSI bus, follow these steps
to install the terminator:
1. Connect the SCSI terminator to the lower SCSI signal connector on
the SZ106 rear panel (Figure 2–1).
2. Snap the wire cable clamps into place to secure the terminator.
If the SZ106 is not the last or only device on the SCSI bus, be sure to
install the terminator at the end of the bus.
2.2.3 Connecting the Power Cord
To connect the power cord:
1. Be sure the SZ106 power switch (Figure 2–1) is set to 0.
2. Connect the power cord to the SZ106 power connector on the rear
panel. Make sure the connector is fully seated.
3. Connect the other end of the power cord to a nearby ac outlet.

Physical Installation 2–5
Figure 2–1 SZ106 Rear View
TERMINATOR
SHR-X0172A_91-DG
CABLE

3
AcceptanceTesting
3.1 Power-on Self-test
See the Tx867 Series Magazine Tape Subsystem Owners Manual (EK–
TX867–OM) for information on power-on self-test (POST) for the magazine
tape subsystem.
3–1

4
Operation
4.1 Controls and Indicators
Once you have verified a successful installation, see the Tx867 Series
Magazine Tape Subsystem Owners Manual (EK–TX867–OM) for
information on:
• Operating the subsystem
• Controls and indicators of the TZ867 magazine tape subsystem
4–1