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DCP Series Telcon Message Manual - Public Support Login - Unisys

DCP Series Telcon Message Manual - Public Support Login - Unisys

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Glossary<br />

X<br />

XEU<br />

X.21<br />

See external end user.<br />

The CCITT Recommendation that defines a protocol for communication between user<br />

devices and a circuit-switched network.<br />

X.21 Circuit-Switched Communications Software (CSCS)<br />

A <strong>Unisys</strong> product that enables <strong>Telcon</strong> to communicate over an X.21 circuit-switched<br />

public data network (PDN).<br />

X.25 Packet-Switched Communications Software (PSCS)<br />

See Packet-Switched Communications Software.<br />

Glossary–20 7436 0728–303

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