ITU-T G.961-1993
综合业务数字网(ISDN)基本速率接入的本地金属线路数字传输系统

DIGITAL TRANSMISSION SYSTEM ON METALLIC LOCAL LINES FOR ISDN BASIC RATE ACCESS

标准号

ITU-T G.961-1993

发布日期

1993年03月01日

实施日期

废止日期

无

中国标准分类号

M11

发布单位

IX-ITU

适用范围

This Recommendation covers the characteristics and parameters of a digital transmission system at the network side of the NT1 to form part of the access digital section for the ISDN basic rate access. The specification of transmission system characteristics at the network side of the NT1 does not correspond to a reference point defined in the reference configuration for ISDN user-network interfaces in Recommendation I.411.The system will support the– full duplex;– bit sequence independenttransmission of two B-channels and one D-channel as defined in Recommendation I.412 and the supplementaryfunctions of the access digital section defined in Recommendation I.603 for operation and maintenance.This Recommendation describes 4 transmission systems using different line codes and transmission methods. They are given in Appendices I to IV as examples following the understanding that only one system should be recommended and,provided in an annex to this Recommendation when this is achieved in future.

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