Termination Requirements
Termination Requirements
Both ends of the SCSI cable must be terminated.
Install SCSI devices starting at the ends of the internal and external
SCSI cables.
The SCSI device, at the end of the SCSI cable, should
be terminated, otherwise a special connector, called a terminator,
must be used to terminate the end of the SCSI cable.
If you have only internal SCSI devices connected to the internal
SCSI connector and the bulkhead cable has not been
installed, the SCSI controller becomes the termination for the
external SCSI connector.
If internal SCSI devices are attached to the SCSI controller,
the last internal device on the bus (cable) must be terminated,
and the termination must be disabled on the other
devices connected to the SCSI connector.
The SCSI bus on the system board is already terminated.
If you use the internal SCSI connector and the external
SCSI connector on the system board, both internal and external
ends of the cable must be terminated.
Refer to the instructions that come with the SCSI device
for more information about termination.
Refer to the instructions that come with the SCSI devices
for information about setting a SCSI ID.
System board jumper J29 must also be jumpered as follows:
- If an 8-bit device is connected to the external
SCSI cable, J29 pins 1-2 must be jumpered.
- For any other combination of SCSI devices attached to the SCSI
external or internal cables, J29 pins 2-3 can be jumpered.
See 'Processor / System - Board'
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