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What does CSU/DSU stand for?

CSU/DSU stands for Channel Service Unit/Data Service Unit

This definition appears very frequently and is found in the following Acronym Finder categories:

  • Information technology (IT) and computers

Samples in periodicals archive:

The Cisco 2620 and 2621 offer WAN-service flexibility and investment protection by supporting the same WAN interface cards available for the Cisco 1600 series, 2600 series, 3600 series and the recently announced Cisco 1720 VPN access router, supporting a variety of serial, Integrated Services Digital Network Basic Rate Interface (ISDN BRI), and integrated channel service unit/data service unit (CSU/DSU) options for primary and backup WAN connectivity.
Instead of filling a complete rack with standard traditional equipment like a fuse panel, test pack, Distributed Cross-connect System (DCS), four Channel Service Unit/Data Service Units (CSU/DSUs), routers, data telemetry and a patch panel, the Axxius 800 requires only two RUs or one-fifth of a 19- or 23-inch rack.
About the OnPrem(TM) 2400 MTU Concentrator The OnPrem 2400 is the first DSL concentrator for small- to medium-size MTUs to offer a fully integrated system, including routing, switching, bandwidth management and a dual-port or quad-port T1/E1 WAN interface with embedded channel service unit/data service unit (CSU/DSU).