Below is a sample configuration for the WIC-1T interface card.
Note: There are no framing, clocking, or linecode parameters or commands being used here. The WIC-1T interface card does not have an integrated CSU/DSU. You need to use an external CSU/DSU.
Configure the serial interface just as you would any other serial interface. For example,
maui-soho-01(config)#interface Serial 0 maui-soho-01(config-if)#ip add 10.0.0.1 255.255.255.0 maui-soho-01(config-if)#encapsulation ppp maui-soho-01(config-if)#no shutdown
If your platform supports async, then use the physical-layer async command for async mode. Such an application is useful to connect an external modem to the router. Refer to the document 2 Port Async/Sync WAN Interface Card (WIC-2A/S) for an example