The WIC-1T features the Cisco 5-in-1 connector which supports several serial protocols (V.35, X.21, RS-232, RS-449, RS-530) when used with the appropriate transition cable. This facilitates easy configuration and re-configuration as network requirements change without the need to purchase a different serial interface card.
Note: When used in Cisco 1720 and 1600 Series Routers, the WIC-1T may also be operated in asynchronous mode. The WIC-1T is not supported in asynchronous mode when used in Cisco 2600 and 3600 Series Routers.
Note: When used in Cisco 1720 and 1600 Series Routers, the WIC-1T may also be operated in asynchronous mode. The WIC-1T is not supported in asynchronous mode when used in Cisco 2600 and 3600 Series Routers.