[国际电信联盟] 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

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标准号:ITU-T G.961-1993
实施状态:现行
中文名称: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
英文名称:DIGITAL TRANSMISSION SYSTEM ON METALLIC LOCAL LINES FOR ISDN BASIC RATE ACCESS
发布日期:1993-03-01
代替标准:ITU-T G.961-1988
标准简介: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.
文件格式:PDF
文件大小:913.65KB
文件页数:139
(以上信息更新时间为:2019-11-27)

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.pdf (913.65 KB)
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