Used Cisco 1600 / 1700 / 1800 / 2600 / 2600XM / 2800 / 3600 / 3700 Series Router  WAN Interface Card

Part # WIC-1DSU-56K4

Product Description: 1-Port Serial w/4-Wire 56 Kbps DSU/CSU WAN Interface Card - The four-wire 56k Channel Service Unit/Data Service Unit (CSU/DSU) implements switched 56k and Digital Data Storage (DDS or leased line) operation, and also: supports DDS loop rates 2.4, 4.8, 9.6, 19.2, 38.4, 56, and 64 kbps; and supports Switched 56 operation at 56 kbps (AT&T Pub. 41458, Sprint TS-0046). It has receiver sensitivity of -45db at all loop rates and these diagnostic functions: Self Test Function (at power on and user initiated) Network line, and data terminal equipment (DTE) loopbacks, user initiated DTE, line, and remote V.54 loopbacks.

 

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