Technical data

Table 8–19: Hardware Components Used to Create the Configuration
Shown in Figure 8–18
Callout Number
Description
1
BN38C or BN38D cable
a
2
BN37A cable
b
3
H8861-AA VHDCI trilink connector
4
H8863-AA VHDCI terminator
5
BN21W-0B Y cable
6
H879-AA terminator
7
328215-00X, BN21K, or BN21L cable
c
a
The maximum length of the BN38C (or BN38D) cable on one SCSI bus segment must not exceed 25
meters (82 feet).
b
The maximum length of the BN37A cable must not exceed 25 meters (82 feet).
c
The maximum combined length of these cables must not exceed 25 meters (82 feet).
8.12.2.2 Preparing a TL881 or TL891 Rackmount MiniLibrary for Shared SCSI
Bus Usage
A TL881 or TL891 MiniLibrary base unit may also be used in a rackmount
configuration with an expansion unit, data units, and other base units, to
add tape drive and/or cartridge capacity to the configuration.
The expansion unit is installed above the TL881 or TL891 DLT MiniLibrary
base or data units in a SW500, SW800, or RETMA cabinet.
For complete hardware installation instructions, see the TL881 MiniLibrary
System User’s Guide or TL891 MiniLibrary System User’s Guide.
The topics in this section provide information on preparing the rackmount
TL881 or TL891 DLT MiniLibrary for use on a shared SCSI bus.
It is assumed that the expansion unit, base modules, and pass-through and
motor mechanism have been installed.
8.12.2.2.1 Cabling the Rackmount TL881 or TL891 DLT MiniLibrary
You must make the following connections to render the DLT MiniLibrary
system operational:
• Expansion unit to the pass-through motor mechanism: The motor
mechanism cable is about 1 meter (3.3 feet) long and has a DB-15
connector on each end. Connect it between the connector labeled Motor
on the expansion unit to the motor on the pass-through mechanism.
Configuring a Shared SCSI Bus for Tape Drive Use 8–67