IBM H Series, Installation And Service Manual

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Appendix B. -48 Volt DC Applications
The RS/6000 Enterprise Server Model H Series -48 Volt DC CPU Drawer is a
RS/6000 Enterprise Server Model H Series that operates on -48 volts direct current.
This book provides information specific to the -48 volt RS/6000 Enterprise Server
Model H Series that is not found in the RS/6000 Enterprise Server Model H Series
Installation and Service Guide or the 7014 Model S00 Rack Installation and Service
Guide.
Cable Routing
All cables must be organized and routed at least 2 inches away from the rear sur-
faces of the RS/6000 Enterprise Server Model H Series system. This will help opti-
mize the system cooling and EMC performance. No labels or other objects should
be added where they will obstruct air flow though the rear chassis ventilation holes.
The following diagram shows one example of how to route the cables at the rear of
the drawer.
1P 2P 3P 4P 5P 6P 7P 8P/I 9P/I 1P 2P 3P 4P 5P 6P 7P 8P/I 9P/I
Power Cables To
Power Distribution Panel
Adapter Cables
To External Devices
Route Cables Away
From This Location
Appendix B. -48 Volt DC Applications
B-1