ITU-T V.24-2000
数据终端设备(DTE)和数据电路终接设备(DCE)之间的交换电路定义表-系列V
List of Definitions for Interchange Circuits between Data Terminal Equipment (DTE) and Data Circuit-Terminating Equipment (DCE) Series V: Data Communication over the Telephone Network Interfaces and Voiceband Modems Study Group 16