HP 28642A manual Connect Your Peripheral Devices, Connect Your Single-Ended Scsi Devices

Connect Your Peripheral Device(s)

You can connect SCSI devices(single-ended devicesonly) to the SCSI port, and a parallel communication device to the parallel port. (The parallel port is not supported for useon MPE XL systems.) The following stepsare describedbelow:

1.Connect your single-ended SCSI devices.

2.Terminate the SCSI bus.

3.Connect your parallel device (ii applicable).

4.Reassembleyour computer.

Connect Your Single-Ended SCSI Device(s)

When connecting SCSI devices,follow theseguidelines:

nVerily that the host systemis shut down. There should be no data transfer activity on the SCSI bus.

mVerify that power is off to the peripheral devicebefore connecting it to the SCSI bus.

nVerify that your peripheral devicesusesingle-endedSCSIbus signalsonly.

8Check whether your device contains internal SCSIbus terminators, or requires special terminators. If so, refer to your devicemanualsfor instructions on how to prevent excessiveor improper SCSIbus termination.

CAUTION	Only the two endsof a SCSIbus should be terminated. Excessiveor
	improper termination may overload the SCSI port’s termination power
	(“TERMPWR”) circuitry. This mayresult in blowing the TERMPWR
	fuse on the adapter, or damagingtransceiverson any attached device
	(including the adapter). Refer to device manualsto ensurethey operate
	properly on the SCSIbus.

Installing the Adapter l-19