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ITU-T Rec. V.250 (07/2003) Serial asynchronous automatic dialling and control
alarm reporting function
Resistibility of telecommunication equipment installed in a telecommunications centre to overvoltage
INTERNATIONALTELECOMMUNICATIONUNIONITU-TTELECOMMUNICATIONSTANDARDIZATIONSECTOROFITUG.826(12/2002)SER
Characteristicsofopticaltransportnetworkhierarchyequipmentfunctionalblocks
ITUG.9901窄带正交频分复用电力线通信收发器–功率频谱密度规范
Resistibilitytestsfortelecommunicationequipmentexposedtoovervoltagesandovercurrents–BasicRecommendat
以2048kbit/s系列为基础的数字网络内的抖动和漂移的控制2048kbit/s
这是ITU关于TUP的标准建议.最权威的标准
希望对你有帮助.....
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