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It is used to select a pair of operational link addresses when preassigned, system designated addresses are not known on an a priori basis; iso iec 13239. In each class, a basic repertoire of commands and responses is defined, but the capability of the data idc may be modified by the use of optional functions.

Standard: ISO/IEC 13239

However, the frame as an entirety may be constructed from octet-oriented units e. Speed up research, capture and reuse expertise For additional product information, visit the IHS Standards Expert page.

These HDLC iso iec 13239 of procedures are defined specifically in terms of the actions that occur on receipt of commands at a secondary station, a tributary station, a peer station, or a combined station. For the balanced connectionless class, the data link consists of two peer stations and operates in the balanced connectionless-mode in a point-to-point configuration. In addition, three frame checking sequences FCS are iso iec 13239 the rules for address field extension are defined; and the addressing conventions available are described.

This Standard References Showing 6 of 6.

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iso iec 13239 Mechanisms are provided to permit the general purpose XID frame information field to be used to negotiate private parameters in a single 31239 exchange simultaneously with negotiation of the defined basic parameters. Top Categories Terms of Use. This International Standard does not limit or restrict the use of the XID frame information field from defining other standard formats for use in specific applications. It defines encoding for information iso iec 13239 to the basic HDLC standards only.


Balanced operation is intended for use in circumstances which require equal control at either end of the data link. For the balanced class, the data link consists of two combined stations and operates in the asynchronous balanced mode in a point-topoint configuration.

IHS Standards Expert subscription, simplifies and expedites the process 132339 finding and managing standards by giving you access to standards from over standards developing organizations SDOs. This International Standard defines a iso iec 13239 negotiation procedure for establishing operational characteristics when either one or more stations are capable of providing multiple selections.

ISO/IEC 13239:2002

For the unbalanced connectionless class, the data link consists of a control station 13329 one or more tributary stations and operates in the unbalanced connectionless-mode in a point-to-point or multipoint configuration. Not all of iso iec 13239 commands or responses are required for any particular system implementation.

Price and Buy this Standard View Pricing. It describes a general purpose XID frame information field content and format for that purpose.

ixo This standard is available for individual purchase. The mechanisms used to achieve bit pattern independence transparencywhere and when required, within iso iec 13239 frame are also defined. NOTE — Address resolution procedures for situations where the remote DTE does not support XID frames, the “all-station” address, or complete address support capabilities as defined in clause 8 below are not within the scope of this International Standard.


This International Standard provides a means for exchanging the necessary information to establish, at a minimum, a data iso iec 13239 connection between two correspondents wishing to communicate.

This International Standard does not define any single system and should not be regarded as a specification for a data communication system. Mitigate liability and better understand compliance regulations Boost efficiency: The frame structure portion defines the iso iec 13239 positions of the various components of the basic frame format and the nonbasic frame format.

For the unbalanced classes, the data link consists of a primary station plus one or more secondary stations and operates iso iec 13239 either the normal response ie or the asynchronous response mode in a point-to-point or multipoint configuration. Identify unmet needs and discover next-generation technologies Improve quality by leveraging consistent standards to meet customer and market requirements Minimize risk: Click here to skip or ad will close in 15 seconds. Operational requirements are covered in accordance with the overall HDLC architecture.

The defined elements of procedures are to be considered as a common basis for iso iec 13239 different types of data link control procedures.