device
In this manual, refers to the peripheral units that are attachedto the SCSI/parallel adapter card.
device adapter
Seeadapter.
differential signal
Also referred to as“balancedsignal”. During electrical transmissionand reception, signalsare detemined by the difference betweentwo lines that are both at different voltagesrelative to ground. Differential SCSIsignalscanbe usedover longer distancesand at higher data rates. A differential SCSIbus is incompatible with a
filler card
In
FRU
Field Replaceable Unit. The lowest level of hardwaresupported for field replacement, such as to effect repair.
hardware path
The collection of hardware addressesthat uniquely identify hardware elements (such asadapter cards and peripheral devices) to the computer system.
In reference to the adapter card’s SCSI port, a
host
In this manual, the computer in which the adapter card is installed.
2 Glossary