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Peripheral Cables
This section provides information on peripheral cables and associated connections. See the
section, “Cable Routing and Pinouts,” in Chapter 5, “System Board,” for additional details.
Cable illustrations are not to scale. You can identify the cables and connectors using their
spacing as reference. Connectors for SCSI devices are spaced approximately 8 in (20 cm)
apart.
CAUTION
You should try to minimize cable flexing during handling. SCSI cables should not have any
creased bends. Take care when installing or replacing cables to insure that they do not
contact sharp metal surfaces or become excessively bent or twisted.
CAUTION
You must disable termination on any SCSI device you install internally. If you do not disable
termination, the system may fail to start or may behave erratically.
Channel A Internal Wide Ultra2 SCSI Cable Connection
Locations
The following illustration and table show the cable connectors and the locations to which they
attach. This cable (MCBL339) is approximately 46 inches long.
1
6
5
4
3
2
Connector
Connects To
1
J63, system board
2
System Disk at Location 1 (internal bay)
3
Disk at Location 2 (internal bay)
4
Device at Location 4 (external bay)
5
Device at Location 5 (external bay)
6
SCSI terminator
See “Device Locations” in Chapter 3, “Upgrading the System,” for details on standard
peripheral locations.
