Nortel Networks 3500, NTRN10AN manual Shelves equipped with STX-192 circuit packs

Hardware feature descriptions 3-5

Shelves equipped with STX-192 circuit packs

On all types of shelves, slots 13 and 14 are double-width slots for the STX-192. Slots 11 and 12 are high-speed interface slots for the OC-48 STS or OC-192 optical interface circuit packs. Slots 13 and 14 are for the STX-192 circuit packs, which provide the STS cross-connect functions for all service slots. The STX-192 circuit pack interface as STS-192 or STS-48 with the optical interface slots 11 and 12 and interface as STS-3, STS-12 and STS-48 with the slots 3 through 10.

See Figure 3-1for an example of the OPTera Metro 3500 Shelf (NTN476DA) and Figure 3-3for an example of the OPTera Metro 3500 Universal Shelf (NTN476AH). For an example of the OPTera Metro 3500 Shelf (NTN476DA) equipped with replaceable I/O modules, see Figure 3-2. For an example of the OPTera Metro 3500 Universal Shelf (NTN476AH) equipped with fans and a replaceable I/O module, see Figure 3-4and Figure 3-5.

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