现行 QB/T 1042-2014
数字式世界钟 数字式世界钟 Digital world time clocks
发布日期:2014-07-09
实施日期:2014-11-01
分类信息
研制信息

归口单位: 全国钟表标准化技术委员会

起草单位: 福建瑞达精工股份有限公司、 烟台北极星股份有限公司

起草人: 李霞、 蒋维

标准简介

本标准规定了数字式世界钟的要求、试验方法、检验规则、标志、包装、运输和贮存。本标准适用于LED或LCD显示的数字式世界钟

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传输和多路复用(TM);同步网络的一般要求;第5-1部分:适用于同步数字体系(SDH)设备的从时钟的定时特性
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传输和多路复用(TM);同步网络的一般要求;第4-1部分:适用于同步数字体系(SDH)和准同步数字体系(PDH)设备同步供应的从时钟的定时特性
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Transmission and Multiplexing (TM); Generic requirements for synchronization networks; Part 4-2: Timing characteristics of slave clocks suitable for synchronization supply to Synchronous Digital Hierarchy (SDH) and Plesiochronous Digital Hierarchy (PDH) equipment; Implementation Conformance Statemen
传输和多路复用(TM);同步网络的一般要求;第4-2部分:适用于同步数字体系(SDH)和准同步数字体系(PDH)设备同步供应的从时钟的定时特性;实现一致性政治家
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传输和多路复用(TM).同步网络的一般要求.第4-1部分:适用于同步数字体系(SDH)和准同步数字体系(PDH)设备同步供应的从时钟的定时特性
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传输和多路复用(TM).同步网络的一般要求.第5-1部分:适合在同步数字体系(SDH)设备中运行的从时钟的定时特性(认可英语版EN 300462-5-1 V 1.1.2(1998-05)为德国标准)
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传输和多路复用(TM).同步网络的一般要求.第4-2部分:适用于同步数字体系(SDH)和准同步数字体系(PDH)设备同步供应的从时钟的定时特性;实现一致性状态
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世界

最后更新时间 2025-09-02