Cisco HWIC-2CE1T1-PRI 2 x Ports Channelized Switch Module
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The Cisco HWIC-2CE1T1-PRI is a hot-pluggable High-Speed WAN Interface Card designed for Cisco Integrated Services Routers, providing two channelized ports configurable for fractional or full T1 (1.544 Mbps) or E1 (2.048 Mbps) circuits, along with support for ISDN Primary Rate Interface (PRI). It features integrated CSU/DSU functionality, supports both balanced (120 Ω) and unbalanced (75 Ω) E1 termination, and fully complies with G.703/G.704 framing standards. Management is simplified through comprehensive troubleshooting features such as internal loopback modes (interface, controller, CSU), alarm detection (yellow, blue/AIS, red), and remote diagnostics via CiscoWorks or CNS 2100 . The module is supported on various ISR platforms including the 2800, 2900, 3800, and 3900 series and offers up to 64 DS-0 channels total (32 per port). With dimensions of approximately 0.75 × 3.08 × 4.74 inches and weighing just 0.19 lb, it’s compact, versatile, and cost-effective for deploying high-capacity TDM or PRI services in branch, enterprise, or carrier edge environments
