YD∕T 2375-2019 高精度时间同步技术要求.pdf

ICS33.040.20

M33YD

中华人民共和国通信行业标准

YD/T2375-2019

代替YD厅2375一却11

高精度时间同步技术要求

Technicalrequirementsforhighaccuracytimesynchronization

2019-11-11发布2020-01-01实施

中华人民共和国工业和信息化部发布

YD厅237步－2019

自次

前言·······……················…………..….…．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．四

1范围··································………………··········································…l

2规范性JI川文件…·………………I

3缩略语．．．．．………………...……········……2

4时间同步要求及精度等级划分…................…….3

4.1时间同步精度等级划分……………3

4.2高精度时间同步要求……..4

s高精度时问同步组间要求………………·…..4

5.1高精度时间同步网等级结构………………..…4

5.2时问11~步设备组成及基本功自~……··……4

5.3时间同步组网原则．．．．．．

6高精度时间同步性能指标要求…··……………········…………..7

6.1概述………...7

62卫星授时可用情况下时间同步间的性能指标分配...…·························……………..7

6.3卫县授时不可用情况下时问同步网的性能指标分配8

7高精度时间同步传送技术……··……··……………9

7.1高精度时间同步实现技术………10

7.2周间传送技术································……······························………10

7.31司内分配技术．．．．….........…..........….….......….......…10

8高精度时间同步接口要求．．．．………·………10

8.1概述…………………10

8.2PTP时问接口要求……...……··…···········································································10

8.31附加ToD时间接口.....12

9高精度时间同步网络可靠性要求·········································