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204 AppendixB
SCSI Connections
SCSI Restrictions
SCSI Restrictions
This section describes the SCSI restrictions that apply to your workstation in the following
areas:
• Cables
• Terminators
• Number of Devices Per SCSI Bus
• Considerations for Selecting SCSI Devices
NOTE
The Ultra Narrow, single-ended SCSI bus supports only 7 devices because
address 7 is reserved by the system. The Ultra2 Wide, Low-Voltage
Differential SCSI bus supports 15 devices because address 7 is reserved by
the system.
Cables
Only SCSI cables approved by HP can be used to connect your workstation and any SCSI
devices. HP offers the following SCSI cables for Ultra Narrow single-ended SCSI devices:
Table B-2. Ultra Narrow Single-Ended SCSI Cables
Cable Number Cable
Length
Description
C2955A 0.5m
50-pin HDTS
1
to 50-pin HDTS
1. High Density Thumb Screw (HDTS)
C2908A 1.0m
C2956A 1.5m
C2957A 2.0m