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2-port E3 Serial Port Adapter with E3 DSUs
Model: PA-2E3
Cisco - Expansion module - ATM, HDLC, Frame Relay - network - 2 ports - E-3
Cisco offers a variety of connectivity, expansion and upgrade modules and cards to accommodate the customer specific needs. Cisco's components are easily and inexpensively upgradeable as customer requirements change.The PA-E3 is a single-width, one-port or two-port module that integrates data service unit (DSU) functionality into the Cisco router. The module provides one or two high-speed serial E3 interfaces.