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HWIC-1DSU-T1 Serial Interface 

This is a great card for any lab kit.  Normal WIC cards will not work with the 1900 and 2900 series routers and they require HWIC cards instead.  However, WIC cards (with the same style port) are compatible across platforms.  For example, an 1841 or 2811 with a WIC-1DSU-T1v2 card can connect to a 1941 with a HWIC card.


These cards use our WIC-Crossover Cables to establish the connection:  https://shop.certificationkits.com/wic-1dsu-t1-crossover-cable/


Serial and asynchronous high-speed WAN interface cards (HWICs) provide highly flexible connections for Cisco ® 1800, 1900, 2800, 2900, 3800, and 3900 Series Integrated Services Routers. These HWICs help customers enable applications such as WAN access, legacy protocol transport, console server, and dial access server. You can mix and match HWICs 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.


• Cisco 1-Port T1/Fractional T1 DSU/CSU WAN Interface Card