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Cisco Metro 1500 Series Hardware Installation Guide
78-10588-03
Chapter1 Product Overview System Modules
The BSM is installed in chassis A to avoid service interruption on upgrading the
unit to more than 16-channel WCM or 8-channel TDM4E, respectively.This also
means that if you only have the primary chassis, you need a chassis A to install a
BSM.
Optical Connectors of the BSM
The BSM has up to 10 optical connectors:
One input connector (M1 to M4) for each of the four MUX modules
One output connector (D1 to D4) for each of the four DMX modules
One common input (D) or common output (M)
All connectors are of the MiniSC type. Figure 1-12 shows the front panel of the
BSM. Connecting the BSM is described in the “Connecting BSMs with MUX and
DMX Modules” section on page 5-4 and in the “Connecting a BSM to an RSM”
section on page 5-6.