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Cisco ATM and Frame Relay Service expansion module
Model: MPSM-T3E3-155=
Cisco ATM and Frame Relay Service - Expansion module - ATM, Frame Relay, SONET/SDH - T-3/E-3
The main function of the MPSM-T3E3-155 is to provide simultaneous ATM and Frame Relay services over unchannelized, channelized and fractional (T1/E1) interfaces whose speed ranges from OC-3/STM-1 to a single DS0 (Fractional). The MPSM-T3E3-155 lets you configure individual physical ports for Frame Relay or ATM services.