Nortel Networks NTRN10AN manual OPTera Metro 3500 Universal cooling unit assembly NTN458QH

Models: 3500 NTRN10AN

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Hardware feature descriptions 3-41

Universal cooling unit assembly and cooling unit fan modules for extended temperature applications

(NTN458QH)

The OPTera Metro 3500 Universal cooling unit assembly (NTN458QH) contains three cooling unit fan modules (NTN458HH) and environmental sensors. This fan unit is effective for extended temperature applications.

See Table 3-3 on page 3-6for operational temperature ranges.

Note 1: The Universal shelf cooling unit assembly (NTN458QH) is only supported on the OPTera Metro 3500 Universal Shelf Assembly (NTN476AH).

Note 2: The Cooling unit assembly (NTN458QA) is only supported on the OPTera Metro 3500 Shelf Assembly (NTN476DA and NTN476AA).

Note 3: The Fan kit (NTN458GA) is only supported on the OPTera Metro 3500 Shelf Assembly (NTN476AA).

Figure 3-24

OPTera Metro 3500 Universal cooling unit assembly (NTN458QH)

EX1156p

Cooling unit fan modules

Front view

Planning and Ordering Guide—Part 1 of 2 NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004

Page 269
Image 269
Nortel Networks NTRN10AN manual OPTera Metro 3500 Universal cooling unit assembly NTN458QH