CISCO - 1-PORT SERIAL WAN INTERFACE CARD REMANUFACTURED

A professionally remanufactured single-port serial WAN interface card designed for Cisco 4000 Series Integrated Services Routers, featuring built-in T1 CSU/DSU functionality supporting T1 (1.544 Mbps) and fractional T1 speeds. Smart serial interface supports multiple WAN protocols including PPP, HDLC, Frame Relay, and MLPPP for flexible connectivity options.

Single T1/E1 serial WAN port Integrated CSU/DSU functionality T1 support up to 1.544 Mbps Multiple WAN protocol support (PPP, HDLC, Frame Relay, MLPPP) Hot-swappable installation QoS-capable Compatible with ISR 4000 Series routers Plug-in module form factor Supports synchronous serial speeds up to 8 Mbps Serial protocols: EIA-232, EIA-449, EIA-530, EIA-530A, V.35, X.21