HP 28642A manual Turn Power On to Peripherals, Then to the Computer

Turn Power On to Peripherals, Then to the Computer

Before turning power on, follow thesesteps:

1.Verify that a11cablesare connected and securely fastened.

2.Turn power on to your peripheral devicesbeforeyour computer.

Refer to your peripheral and computer installation manuals for information on turning power on. In general, plug your power cords first into the load (your peripheral or computer), then into the power source (such asthe electrical wall outlet). Then turn on your computer power switches as appropriate.

When the computer’s power is switched on, power is supplied to the SCSI/parallel adapter through the HP-PB backplane. For operation of the light emitting diodes (LEDs) on the card, refer to chapter 3,Servicebtfonnation.

CAUTION	After power is switched on, termination power (“TERMPWR”) is
	supplied to the SCSI bus. Do not switch power on or off any device
	connected to an active SCSI bus. Similarly, devices should not be added
	to, or removed from, an active SCSIbus. Failure to comply mayresult in
	data corruption or loss,or damageto hardware.

1-26 Installing the Adapter