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Four-Feed PDU
Figure 41
Standard two-feed wiring
Cable-tie saddle
The Four-Feed PDU (NT4N49AA) supports independent power feeds to each
of four modules in a stack if required. However, in a typical installation where
independent power feeds are not required, two jumper wires are provided to
jumper adjacent battery leads. When the jumper wires are used, the four-wire
PDU effectively provides the same "shared" power configuration provided
by the existing DC PDU. Therefore, the new PDU is backward compatible
and can replace an existing PDU unit in a stack, if required.
The NT4N49AA DC PDU:
•
supports four input circuits, implemented through the following terminal
configuration: four (negative) battery leads, four return leads, and logic
return lead
•
is fully backward compatible with the existing PDU it is replacing
•
supports independent power feeds to each of four modules
Installing DC power
Cable restraint bar
Large System Installation and Commissioning
Page 121 of 436
Cable-tie saddle
553-AAA0467
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