CAN/CSA-ISO/IEC-7809-1995(R1999)

Information technology - Telecommunications and information exchange between systems - High-level data link control (HDLC) procedures - Classes of procedures

CAN/CSA-ISO/IEC-7809-1995(R1999) 发布历史

CAN/CSA-ISO/IEC-7809-1995(R1999)由SCC 发布于 1995-02-28。

CAN/CSA-ISO/IEC-7809-1995(R1999)在国际标准分类中归属于: 35.100.20 数据链路层。

CAN/CSA-ISO/IEC-7809-1995(R1999) 的最新版本是哪一版？

最新版本是 CAN/CSA-ISO/IEC-7809-1995(R1999) 。

CAN/CSA-ISO/IEC-7809-1995(R1999)的历代版本如下：

• 0000年 CAN/CSA-ISO/IEC-7809-1995(R1999)

The international community has decided to make this standard available only in the English language version. It has been adopted as a National Standard of Canada on this basis. This National Standard of Canada is equivalent to International Standard ISO/IEC 7809:1993. 1 Scope This International Standard describes the HDLC unbalanced classes of procedures, the HDLC balanced class of procedures, and the HDLC connectionless classes of procedures for synchronous or start/stop data transmission. Balanced operation is intended for use in circumstances which require equal control at either end of the data link, Operational requirements are covered in accordance with the overall HDLC architecture. The procedures use the HDLc frame structure defined in ISO/IEC 3309 and the HDLC elements of procedures described in ISO/IEC 4335. For the unbalanced classes, the data link consists of a primary station plus one or more secondary stations and operates in either the normal response mode or the asynchronous response mode in a point-to-point or multipoint configuration For the balanced class, the data link consists of two combined stations and operates in the asynchronous balanced mode in a point-to-point configuration. For the unbalanced connectionless class, the data link consists of a control station plus one or more tributary stations and operates in the unbalanced connectionless-mode in a point-to point or multipoint configuration. 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 each class, a basic repertoire of commands and responses is defined but the capability of the data link may be modified by the use of optional functions.

标准号

CAN/CSA-ISO/IEC-7809-1995(R1999)

发布

1995年

发布单位

SCC

当前最新

CAN/CSA-ISO/IEC-7809-1995(R1999)

 

 

代替标准

DATA ORGANIZATION, DATA PROCESSING, DATA TRANSMISSION CONTROL, COMMUNICATIONPROCEDURES, INFORMATION EXCHANGE, TELECOMMUNICATIONS, HIGH-LEVEL DATA LINKCONTROL, PROCEDURES, TELECOMMUNICATION TRANSMISSION METHODS

被代替标准

1999-01-01

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