Within the scope of this Recommendation are bringing-into-service and maintenance of intemational SDH aths and multiplex sections and also SDH signals transported over PDH networks. For the case of PDH signals transported over SDH networks, Recommendation M.2100 applies to the PDH part, and this Recommendation applies to the SDH part. Further guidance is given in the main body of this Recommendation on how M.2100 and M.2101.1 relate. "International" in this Recommendation refers to SDH paths and multiplex sections which cross international boundaries with a change in jurisdictional responsibility. This Recommendation does not consider commissioning of SDH equipment into the network. The lowest bit-rate considered by this Recommendation is the SDH VC1 bit rate. It does not, therefore, consider 64 kbit/s circuits or sub-64 kbit/s which are dealt with by Recommendations M.2100 and M.1340, respectively.
ITU-T M.2101.1 FRENCH-1997由国际电信联盟 IX-ITU 发布于 1997-04-01。
ITU-T M.2101.1 FRENCH-1997 在中国标准分类中归属于: M15 通信网性能指标及测试。
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