Install and Connect SCC1 (Single-Carrier Cabinets)
Task List: Install a J58890CG DC Power Distribution Unit
SI Installation and Upgrades
379
June 2004
Figure 116: DC Power Cabinet Stack — Rear
Connect AC Power to DC Power Cabinet
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This procedure applies to both the Processor Port Networks (PPN) and Expansion Port Networks (EPN).
CAUTION:
Power is present in the cabinet even if the AC power cable is unplugged. Turn off the main
circuit breaker on the front of the cabinet when procedures require ALL power to be
removed from the cabinet.
1
Ensure the associated circuit breakers at the AC power panel are OFF.
2
Have an electrician connect AC power leads to the rectifiers using the instructions provided with
the rectifiers in the DC Power Cabinet. Each rectifier should have its own branch circuit.
Terminate leads on the AC INPUT terminal block of each rectifier.
Figure notes
1
DC Power Cabinet Stack
2
DC Power Cables Daisy Chained
Between DC Power Cabinets
3
Connect to -48 VDC Bus
4
Connect to -48 VDC Return Bus
5
Inset Applies to -48 VDC and -48
VDC Return Buses in All Three
DC Power Cabinets
pwrdist4 RBP 052896
