标准编号:DIN EN 300451-2002
标准名称:通路和终端(AT).普通质量音频带宽四线模拟租用专线(A4O).连接特...
英文名称:Access and Terminals (AT) - Ordinary quality voice bandwidth 4-wire analogue leased line (A4O) - Connection characteristics and network interface presentation (Endorsement of the English version EN 300451 V 1.2.1 (2001-07) as German Standard)
发布部门:
发布日期:2002-01-01
实施日期:
标准状态:现行
文件格式:PDF