Quantum acl 4 安装指导

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).

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.

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.