PairGain HIGAIN HLU-231 Manual page 45

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Revision 02

2.5

The thermal loading limitations imposed when using the HLU-231 List 7B in Controlled

Environmental Vaults (CEV) or other enclosures are determined by applying the HLU-231 List 7B

power parameters to the manufacturer requirements for each specific housing.

2.6

The power consumption listed in Table 12 is the total power that the HLU-231 List 7B consumes or

draws from its -48 VDC shelf power source. This parameter is needed when the HLU-231 List 7B is

located remote to its serving CO. It determines the battery capacity required to maintain an 8-hour

stand-by battery reserve for emergency situations. It thus limits the maximum number of plugs per

remote enclosure. Use this data to perform this analysis on a case by case basis.

HiGain Line Unit HLU-231

January 31, 1997

PairGain Engineering - Plant Series

Section 150-231-172

Page 43

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