This Recommendation outlines minimum requirements for timing devices used as node clocks in synchronization networks. The function of a node clock is to select one of the external synchronization links coming into a telecommunication station as the active synchronization reference, to attenuate its jitter and wander and subsequently to distribute the reference to the telecommunication equipment in the station. The requirements in this Recommendation apply under the normal environmental conditions specified for telecommunications equipment.
ITU-T G.812 SPANISH-2004由国际电信联盟 IX-ITU 发布于 2004-06-01。
ITU-T G.812 SPANISH-2004 在中国标准分类中归属于: M30 通信设备综合。
* 在 ITU-T G.812 SPANISH-2004 发布之后有更新,请注意新发布标准的变化。
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