Installation Guide

Chapter 3 Installing the Library
Connecting the Host Computer
26 ACL 4/52 Facilities Planning and Installation Guide
Connecting the Host Computer
3
This section explains how to connect the library to the Sun system
acting as host computer. The library is shipped with the internal
cabling configured for one host SCSI connection (single-wire).
Note: To support a SCSI configuration other than single-wire, the library’s
internal SCSI cabling must be changed. Additional SCSI cables are
provided in the library accessories kit. The accessories kit also includes
SCSI cables and terminator for connecting the library to the host
computer.
To perform this procedure:
1 Turn off the library as follows:
a Press the STANDBY button on the control panel. Make sure
that “System Offline” appears in the display and the STANDBY
indicator is on.
b Press the STOP button on the control panel. Make sure that the
STOP indicator is on.
c At the back panel, set the power switch to the O (off) position.
2 Turn off all SCSI devices that will be connected to the same SCSI
bus as the library.
Note: The library uses differential (Diff) SCSI connections. If your
host adapter is single-ended (SE) SCSI, you must use an SE-to-
Diff converter for proper SCSI communication.
3 Connect a SCSI cable from the host computer’s SCSI adapter to
SCSI PORT 1 on the back panel of the library (figure 14 on
page 27).
4 Install the SCSI jumper cable between SCSI PORT 2 and SCSI
PORT 3 on the back panel of the library.
5 Install the SCSI terminator to SCSI PORT 4 on the back panel of the
library.