Home / Standards / GB/T 7436-1987 GB/T 7436-1987 Active Specifications of TDM equipment operating on an analog telephone-type circuit for telegraph and lower-speed data 在模拟电话电路上开放电报及低速数据的时分复用设备技术要求 Standard Type GBT ICS 33.040.40 CCS M32 Status 现行 Issue Date 1987-03-16 Implementation 1987-11-01 Responsible Dept 工业和信息化部（通信） Drafting Unit 工业和信息化部（通信）