ETSI EN 301 005-1-1998 数字业务节点(SN)处的V接口.支持宽带或混合窄带与宽带接入网(Ans)的VB5.1参考点接口.第1部分:接口规范(版本1.1.4)
V Interfaces at the Digital Service Node (SN); Interfaces at the VB5.1 Reference Point for the Support of Broadband or Combined Narrowband and Broadband Access Networks (ANs); Part 1: Interface Specification (Version 1.1.4)