CISCO HWIC-2T Router Module
2-Port Serial WAN Interface Card (HWICs) for the Cisco 2600 and 1700 series
feature Cisco`s new, compact, high-density Smart Serial connector to support awide variety of electrical interfaces when used with the appropriate transitioncable.
Using for Cisco 1800, 1900, 2800, 2900, 3800, and 3900 Series Integrated Services Routers, Cisco offers these four new serial HWICs:
• Cisco 1-Port T1/Fractional T1 DSU/CSU WAN Interface Card (HWIC-1DSU-T1)
• Cisco 1-Port Serial WAN Interface Card (HWIC-1T)
• Cisco 2-Port Serial WAN Interface Card (HWIC-2T)
• Cisco 2-Port Asynchronous/Synchronous Serial WAN Interface Card (HWIC-2A/S)
Two cables are required to support the two ports on the HWIC.
Each port on a HWIC is a different physical interface and can support different protocols such
as Point-to-Point protocol (PPP) or Frame Relay and Data Terminal Equipment/Data
Communications Equipment (DTE/DCE).