V interfaces at the digital Local Exchange (LE); V5.1 interface for the support of Access Network (AN); Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network layer (LE side)
数字本地交换机(LE)的V接口;V5 1个支持接入网(AN)的接口;第6部分:网络层(LE端)抽象测试套件(ATS)和部分协议执行额外测试信息(PIXIT)形式规范
Abstract Test Suite specification (ATS in TTCN) and protocol implementation extra information for testing (PIXIT) proforma V5.1 interface for support of Access Network; 2048 kBit/s interface without concentration capability within the Access Network