Cisco 2 Port Serial WAN Interface Card. Host interface: Serial, Output interface: Serial, Serial interface type: RS-232. Width: 79 mm, Depth: 142 mm, Height: 21 mm. Data link protocols: Frame Relay, PPP, DTE/DCE, Connectivity technology: Wired, Compatibility: Cisco 1700, 2600, 3600 series

The dual-serial port WAN interface cards (WICs) for the Cisco 2600 and 1700 series feature Cisco`s new, compact, high-density Smart Serial connector to support a wide variety of electrical interfaces when used with the appropriate transition cable. Two cables are required to support the two ports on the WIC. Each port on a WIC 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).