Nortel Networks NTRN10AN, 3500 manual Universal power module NTN451HA

3-42Hardware feature descriptions

20 A (Universal) power module (NTN451HA)

The OPTera Metro 3500 Universal Shelf supports the Universal power module (NTN451HA).

The power modules in slots 1b and 1c provide the required -48 V dc interface to power the shelf. The power module in slot 1b is called Power A and the power module in slot 1c is called Power B. The interfaces have circuit breakers to protect the A and B power rails.

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

Figure 3-25

Universal power module (NTN451HA)

EX0781

Cooling fan

power connector

Shelf power

connector

Return

-48 V

Power switch

OPTera Metro 3000 breaker interface panel (BIP) (NTN458RA)

The breaker interface panel (BIP) NTN458RA is mounted at the top of the OPTera Metro 3500 equipment frame and supports four breakers at 20 A, three breakers at 5 A, and one breaker at 15 A. NTN458RA is rated for operation in the temperature range of -10°C to +60°C. The BIP can accommodate four OPTera Metro 3500 shelves, eight DSMs or any combination of OPTera Metro 3500 and DSMs which does not exceeding 80 A.

OPTera Metro 3500 Multiservice Platform NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004