Table8–13: Hardware Components Used to Create the Configuration
Shown in Figure 8–18
Callout Number Description
1BN38C or BN38D cablea
2BN37A cableb
3H8861-AA VHDCI trilink connector
4H8863-AA VHDCI terminator
5BN21W-0B Y cable
6H879-AA terminator
7328215-00X, BN21K, or BN21L cablec
aThemaximum length of theBN38C(or BN38D) cable on one SCSI bussegmentmust not exceed 25 meters.
bThemaximum length of theBN37Acable must notexceed25 meters.
cThemaximum combined length of these cables must notexceed25 meters.
8.11.2.2.2 Configuring a Base Unit as a Slave to the Expansion Unit
The TL881/TL891 base units are shipped configured as standalone systems.
When they are used in conjunctionwith the MiniLibrary expansion unit, the
expansion unit must control the robotics of each of the base units. Therefore,
the base units must be configured as slaves to the expansion unit.
After the hardware and cables are installed, but before you power up
the expansion unit in a MiniLibrary system for the first time, youmust
reconfigure each of the base units in the system as a slave. The expansion
unit will not have control over the base unit robotics when you power up the
MiniLibrary system, if you do not reconfigure the base unit as a slave.
Toreconfigure a TL881/TL891base unit as aslave to theMiniLibrary
expansion unit, perform the following procedure on each base unit in the
system:
1. Turn on the power switch on the TL881/TL891 base unit to be
reconfigured.
____________________ Note _____________________
Do not power on the expansion unit. Leave it powered off
until all base units have been reconfigured as slaves.
After a series of self-tests have executed, the default screen will be
displayed on the base module control panel:
Configuring a Shared SCSI Bus for Tape Drive Use 8–61