1.Information technology - Office equipment; Facsimile equipment - Part 8: Rules for facsimile information signals
信息技术.办公室设备.传真设备.第8部分:传真信息信号规则
2.Office machines - Facsimile equipment - Part 2: Basic requirements
办公室和数据技术.传真复印机.第2部分:基本要求