Oracle T5140, Installation Manual, Page: 93 / 115

82 Sun SPARC Enterprise T5140 and T5240 Servers Installation Guide • December 2010
Related Information
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“DC Supply and Ground Conductor Requirements” on page 82
DC Supply and Ground Conductor
Requirements
The server must meet the following:
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Suitable conductor material: Use copper conductors only
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Power supply connections through the input connector: 12 AWG (between the
server and the source). There are three conductors:
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-48V or -60V (negative terminal)
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Chassis ground connection
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-48V or -60V Return (positive terminal)
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System ground conductor: 12 AWG (to be connected to the chassis)
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Cable insulation rating: Minimum of 75˚C (167˚F), low smoke fume (LSF), flame
retardant
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Provide a Wago Type 721-103/037-000 mating connector for proper connection to
the DC connectors supplied with the server (Wago Type 721)
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Branch circuit cable insulation color: According to applicable National Electrical
Codes
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Grounding cable insulation color: Green/yellow
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DC power source must meet TNV-2 requirements as defined by UL 60950-1 and
IEC 60950-1
Note – Depending on the DC power source, the -48V or -60V (negative terminal)
might be marked with a minus (-) symbol. The -48V or -60V Return (positive
terminal) might be marked with a positive (+) symbol.
When attaching DC cables, keep the following caution in mind:
Caution – You must restrict the connection of the server to the DC power source to
minimize the possibility that transient energy will appear on the main input to the
equipment. The DC battery power source must be in the same premises as the server.
The server cannot be in one building with the power source in another building.