Channel Service Units (CSUs) and Data Service Units (DSUs) are digital interface devices that connect end user data communications equipment to digital access lines and provides framing of sub-64 kbps ...
Frame Relay Frame relay is a packet switching protocol for connecting devices on a Wide Area Network (WAN). Frame relay networks in the U.S. support data transfer rates at T11 (1.544 Mbps) and T3 (43 ...
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