目录简介 | Foreword 1. Scope 2. Normative References 3. Definition 4. Performance Requirements 4.1 Interface 4.2 Signal type 4.3 Ringing current and audible signal tome 4.4 Clock synchronization 4.5 Requirement of large traffic load 4.6 Transmission requirement 4.7 Reliability 4.8 Electromagnetic Compatibility 4.9 Excess-voltage protection 4.10 Power supply and grounding 4.11 Environmental requirement 5. Functional Requirement 5.1 Function of dispatching exchanger 5.2 Dispatching console 5.3 Extension function 5.4 Operator console function (Optional 5.5 Billing function (Optional) 5.6 Terminal maintenance function 6. Mark, Package and Transportation 6.1 Product mark 6.2 Package 6.3 Transportation 6.4 Storage 6.5 Self-contained document. |