Customer premises cabling for information technology - part 1 : isdn basic access 信息技術(shù)用引入用戶建筑內(nèi)的電纜敷設(shè).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 信息技術(shù)用用戶房屋電纜線路. 2048kbit s isdn基本存取和租用專用通信網(wǎng)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 綜合業(yè)務(wù)數(shù)字網(wǎng)絡(luò).用isdn基本存取接觸isdn的終端設(shè)備