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WIC-2A/S and 1841 router

I was wondering whether I could use WIC-2A/S into my new 1841 router . Are they compatible .


  • WAN Routing and Switching

Re: WIC-2A/S and 1841 router

New Member

Re: WIC-2A/S and 1841 router

Hi samtiano2001

the router should be supported the WIC-2A/S


thanks & rEgards


Re: WIC-2A/S and 1841 router

Hi Samtiano,

WIC 2-port asynchronous/synchronous serial WAN interface card is listed for support the said platfrom. URL:

As per Cisco:

The dual-serial port WAN Interface Card (WIC-2A/S) provides higher levels of serial port density for a single WIC and is supported on the Cisco 1700, 2600, and 3600 series. The low serial speed WIC-2A/S supports up to 128 Kbps synchronous or 115.2 Kbps asynchronous serial links. 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). This WIC supports mixed asynchronous and synchronous operation on a single card as well.

These dual-serial port WICs feature Cisco's new, compact, Smart Serial connectors to support a wide variety of electrical interfaces when used with the appropriate transition cable. This includes: V.35, RS-232, RS-449, RS-530, RS-530A in male and female versions for both DTE and DCE devices. This feature provides easy configuration and reconfiguration as network requirements change, without the need of purchasing a different serial interface card.

But its not listed with URL:

Thanks Goutam

Re: WIC-2A/S and 1841 router


WIC-2A/S is supported on 1841 router.

Min. IOS requirement - 12.3(8)T4.

-> Sushil