Quantum atl 7100 Installation Instruction

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Appendix A  SCSI Cabling Options
Four-Wire SCSI Configuration
Quantum|ATL 7100 Series Facilities Planning and Installation Guide
39
Four-Wire SCSI Configuration
1
This configuration connects the robotics controller and drive 0 on 
one SCSI channel from the host controller, and the remaining 
drives in the system are individually connected to separate SCSI 
channels to the host (see 
The first channel from the host connects to the rear panel connector 
labeled 
SCSI PORT 1
 and terminates internally at the drive 
interface PWA for Drive 0
. 
The second channel from host 
controller connects to the rear panel connector labeled 
SCSI PORT 
2
 and terminates internally at the drive interface PWA for Drive 1. 
The third channel from the host controller connects to the 
connector labeled 
SCSI PORT 3
 and terminates internally at the 
drive interface PWA for Drive 2. The fourth channel from the host 
controller connects to the connector labeled 
SCSI PORT 4
 and 
terminates internally at the drive interface PWA for Drive 3. 
Note:
This configuration of the library requires two additional 
SCSI terminators. The accessories kit includes two 
terminators that can be used internally or externally with 
the library.