前 言 ................................................................... II
1. 范围 ................................................................... 1
2. 规范性引用文件 ......................................................... 1
3. 术语、定义和缩略语...................................................... 1
4. 概述 ................................................................... 1
5. 基于1PPS+TOD方式的时间同步功能要求 ..................................... 2
6. 1PPS+TOD接口中TOD的协议规范 ........................................... 3
6.1 TOD帧定义 .......................................................... 3
6.2 TOD消息定义 ........................................................ 4
6.2.2 时间信息消息...................................................... 5
6.2.3 时间状态消息...................................................... 6
7. 编制历史 ............................................................... 7
附录A (TOD状态信息和1588v2等级对应关系 附录) ............................ 7
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