SA7x Technical Description
2.6 SA7x Enclosure Internal Cabling
2.6 SA7x Enclosure Internal Cabling
Appendix A contains a complete listing of cable origins, destinations, and pinouts.
The subassemblies of the SA7x enclosure are linked through the power harness.
The power harness branches to each disk drive position, to TB2, to the fan, and
to the drive power switches.
Each disk drive position re5.1 Vdc, +12.1 Vdc, and ground from the power
supply. In addition, the power supply status line ACOK is monitored individually
by the disk drives through TB2. The fan assembly re12.6 Vdc and ground
for operation by way of TB2.
Separate cables connect the disk drive positions to the rear bulkhead of the
enclosure and provide SDI interface to Port A and Port B of each RA7x disk
drive.
Ribbon cables from the remote OCP connectors of each disk drive are routed to
TB2, combined into two 40-pin cables, and routed through TB1 to the OCP.
For further information about SA7x cabling, see Appendix A.
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