Cisco 2Pt Ser Wan I/F Card

Cisco High-Speed - Expansion module - HWIC - RS-232, RS-530, X.21, V.35, RS-449, RS-530A - 2 ports - for Cisco 1841, 1841 ADSL2, 1921 4-pair, 1921 ADSL2+, 1921 T1, 19XX, 28XX, 29XX, 38XX, 39XX The high-speed WAN interface card (HWIC) provides highly flexible connections for Cisco 1800, 2800, and 3800 series integrated services routers. This HWIC helps customers enable applications such as WAN access, legacy protocol transport, console server, and dial access server. You can mix and match HWIC to tailor cost-effective solutions for common networking problems such as remote network management, external dial-modem access, low-density WAN aggregation, legacy protocol transport, and high-port-density support.