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Hardware feature descriptions 3-41
Planning and Ordering Guide—Part 1 of 2 NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004
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 3-6 for 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
Front view
Cooling unit fan modules