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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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PDNIUS<br />

PDNL3<br />

PDNL44<br />

PDNLPD<br />

PDNMAS<br />

PDNMLP<br />

PDNMS<br />

PDNPAD<br />

PDNSVS<br />

Glossary<br />

The X.25 PSCS initialization procedure. This procedure is defined in X.25 PSCS element<br />

PDNIUS. When the first line configured for X.25 PSCS becomes enabled, this procedure<br />

examines all other configuration statements related to X.25 PSCS and builds internal data<br />

structures needed for the X.25 PSCS operation.<br />

Implements the X.25 packet-level protocol (level 3). This procedure is defined in both the<br />

nonfunctional <strong>Telcon</strong> element PDNL3 and in the X.25 PSCS element PDNL3. The<br />

nonfunctional procedure is present only when X.25 PSCS is not installed. This procedure<br />

provides an interface between the various level 4 programs using the Layer 3/4 Platform<br />

and the link level or multi link-level protocol.<br />

The transport protocol terminal interface for UTS 4000 Cluster Controllers running UTS<br />

X.25 PSCS software. This procedure is defined in X.25 PSCS element PDNL4. It provides<br />

an interface between the terminal interface in element PDNLPD and the X.25 packet-level<br />

protocol.<br />

The terminal virtualizer interface handler for UTS 4000 Cluster Controllers running UTS<br />

X.25 PSCS software. This procedure is defined in X.25 PSCS element PDNLPD. It<br />

provides an interface between the transport protocol in procedure PDNL44 and the <strong>Telcon</strong><br />

UTS virtualizer.<br />

The nonfunctional version of the interface handler for processing NMS command<br />

parameters defined for X.25 PSCS. This procedure is defined in <strong>Telcon</strong> and is present only<br />

when X.25 PSCS is not installed.<br />

See <strong>Public</strong> Data Network Multi Link-Level Protocol.<br />

The <strong>Telcon</strong> NMS interface handler for processing NMS command parameters defined for<br />

X.25 PSCS. This procedure validates the NMS command and its parameter values, invokes<br />

functions to other modules in X.25 PSCS for performing the NMS command, and generates<br />

output response and information messages to the NMS console.<br />

The handler for asynchronous terminals connected to an X.29 network PAD across an X.25<br />

network. This procedure is defined in X.25 PSCS element PDNPAF. It provides an<br />

interface between <strong>Telcon</strong>’s INT-1 protocol and the X.25 packet level protocol. When a<br />

terminal makes a packet level connection, the terminal operator uses standard <strong>Telcon</strong><br />

control commands, forming a session to an application.<br />

The X.25 line handler. This procedure is defined in both the nonfunctional <strong>Telcon</strong> element<br />

PDNSVS and the X.25 PSCS element PDNSVS. The nonfunctional procedure is present<br />

only if X.25 in not installed. This procedure processes line initialization and line<br />

termination commands.<br />

7436 0728–303 Glossary–13

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