Channel Service Units (CSU) and Data Service Units (DSU) Data Sheets From:
Headquarters
Eden Prairie, MN
Hillsboro, OR
Gaithersburg, MD
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.
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