Requirements for synchronous digital hierarchy (SDH) optical fiber cable line systems
中国通信标准化协会
本标准规定了线路速率为155 520 kbit/s、622 080 kbit/s、2 488 320 kbit/s和9 953 280 kbit/s的SDH光缆线路系统的进网要求。
本标准适用于公用电信网的SDH光缆线路系统。专用电信网也可参照使用。本标准发布之后进网的设备应当满足本标准的要求。
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