ADC Telecommunications, Inc. Datasheets for Channel Service Units (CSU) and Data Service Units (DSU)

Channel service units (CSU) and data service units (DSU) are digital interface devices that connect end user data communications equipment to digital access lines. They also provide framing of sub-64 kbps customer access channels onto higher rate data circuits.
Channel Service Units (CSU) and Data Service Units (DSU): Learn more

Product Name Notes
Network interface module, flexible, rate selectable design