Customer premises cabling for information technology - part 1 : isdn basic access 信息技术用引入用户建筑内的电缆敷设.第1部分: isdn基本存取
Customer premises cabling for information technology - 2048 kbit s isdn primary access and leased line network interface 信息技术用用户房屋电缆线路. 2048kbit s isdn基本存取和租用专用通信网接口
Integrated services digital network ; attachment requirements for terminal equipment to connect to an isdn using isdn basic access ; layer 3 aspects ; english version ets 300104 : 1991 综合业务数字网络.用isdn基本存取接触isdn的终端设备
Information technology - telecommunications and information exchange between systems - interface connector and contact assignments for isdn basic access interface located at reference points s and t 信息技术.电信和系统间信息互换.位于参照点s和t的isdn基本存取接口用连接器及触点排列
Information technology . telecommunications and information exchange between systems . interface connector and contact assignments for isdn basic access interface located at reference points s and t . european standard en 28877 信息技术.系统间通信和信息交换.位于基点s和t上综合服务网络isdn基本存取接口用接口连接器和触点分配