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HP C100/110 User Manual

Page 178

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SCSI Connections

SCSI Restrictions

If you are daisy-chaining single-ended standard SCSI-2 devices together,
use the following cables:

92222A cable with 0.5 meter (1.6 feet) length

92222B cable with 1.0 meter (3.2 feet) length

92222C cable with 2.0 meter (6.6 feet) length

If you are daisy-chaining fast, wide differential SCSI devices together, use
the following cables:

C2911A cable with 0.9 meter (3 feet) length

C2924A cable with 2.5 meter (8.2 feet) length

C2925A cable with 10.0 meter (32.8 feet) length

C2926A cable with 20.0 meter (65.6 feet) length

NOTICE

See “Determining SCSI Bus Length” later in this Appendix to determine
the total length of your cables.

Connectors and Terminators

Any standard single-ended SCSI device connecting to the system board
must use a 50-pin high-density thumb screw connector on the end connect-
ing to the system board.

Any fast, wide differential SCSI device connecting to the system board must
use a 68-pin high-density thumb screw connector on both ends.

It is not necessary to put a terminator on empty SCSI connectors on the back
panel. However, a SCSI device attached to the SCSI bus or the last device
connected to the SCSI bus must be terminated with a SCSI terminator. All of
the devices listed ship without terminators. If you do not already have a
SCSI terminator, you must order terminator C2904A (for 50-pin connectors)
or C2905A (for 68-pin connectors) from Hewlett-Packard.

SCSI Configuration Constraints

You are limited to the number of same-type SCSI devices per system. Before
adding another SCSI device, determine if the system can support the addi-
tional device.