Terminate the SCSI Bus

Unless the SCSIbus is properly terminated, the bus will not operate properly. Terminators provide matching impedance on SCSIbus signal lines.

This product includes an external SCSIbus terminator to terminate the peripheral end of a differential SCSIbus. The terminator consists of a 68-pin, high density male connector with thumb screws.

Install the external terminator on the end of the SCSI bus (opposite the SCSI host adapter). If an intermediate device has internal terminations installed, remove them before attaching the external terminator.

CATJTION

Only the two ends of a SCSI bus should be terminated.

 

Excessive or improper termination may overload the adapter’s

 

termination power circuitry. Refer to device manuals for their

 

proper operation on the SCSI bus.

Seefigure 1 on page 12for an example of SCSIbus termination.

32 Instcrllation Rocedures

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Image 32
HP A3644A Terminate the Scsi Bus, Only the two ends of a Scsi bus should be terminated, Proper operation on the Scsi bus