Cisco HWIC-1CE1T1-PRI High-Speed Wan Interface Card
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The Cisco HWIC-1CE1T1-PRI is a hot-pluggable High-Speed WAN Interface Card (HWIC) tailored for Cisco Integrated Services Routers, combining channelized T1/E1 and ISDN PRI capabilities in a compact module. It offers a single RJ-48C port capable of supporting fractional or full T1 (1.544 Mbps) or E1 (2.048 Mbps) links, and includes integrated CSU/DSU functionality to reduce external hardware. The card is software-configurable for T1 or E1 operation—supporting both balanced (120 Ω) and unbalanced (75 Ω) E1 termination, and compliant with ITU-T G.703/G.704 standards. It provides extensive diagnostics, including multiple loopback modes, alarm detection, ISDN Q.921/Q.931 signaling logging, and MIB-based monitoring, making it ideal for resilient WAN connectivity, dial-access aggregation, or PRI-based primary or backup links. Supported on Cisco 2800, 2900, 3800, and 3900 series routers, it enables full integration with IOS-based routing, security, voice, and wireless capabilities.
