IBM PS/2 90 XP 486 Hardware Maintenance Reference page 43

3.4.1 SCSI Device Cabling and Terminators
Internal SCSI Devices:
through a flat ribbon cable 1 .
SCSI devices and uses a cable with multiple connectors.
one internal SCSI hard disk drive installed, it is connected to the last
connector on the cable.
SCSI chain, it is the only internal SCSI device that requires a
terminator 2 .
Note: Terminators vary depending on the device.
in-line cable terminator, one or more resistor terminators (in
various sizes) on the circuit board of the device, or a pin-jumper
on the circuit board.
any extra terminators with the system in case they are needed in
the future.
External SCSI Devices:
series of cables outside of the system.
attaches to the SCSI adapter port through a 60-pin to 50-pin cable 3 .
Additional external SCSI devices link together through a 50-pin to 50-pin
cable 4 . The last device in the chain requires a 50-pin block
terminator 5 (in the lower connector).
IBM PS/2 Model 90 XP 486 and 95 XP 486 HMR
SCSI Device Cabling and Terminators
Internal SCSI devices attach to a SCSI adapter
The system supports multiple internal
Because that device is the last device in the
All terminators are labeled T-RES.
External SCSI devices are attached through a
The first external device
PICTURE 8
¦ Copyright IBM Corp. 1990, 1992
3.4.1 - 1
If there is only
You might see a single
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