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- digital trunk module 数字中继模块
- TETRA is a global digital trunk standard,its technology and market is growing rapidly. TETRA作为全球性数字集群标准,其技术和市场都在迅速发展。
- Digital trunking communicationsystem has developed as well. 数字集群通信网络建设初具规模。
- After discussing the trunking scheme of PABX,the paper intro- duces the design and implementation of Digital Trunk Module-DTM. The DTM is based on MH89780 (CETP Digital Trunk Interface Hybrid) and MT8980 (Digi- tal Time/space Crosspoint Switch) LSI chips. 本文史介绍一种程控用户交换机数字中继模块的实现方法。 它以加拿大 MITEL 公司的MH89780数字中继接口芯片(CEPT Digital Trunk Interface Hybrid)和 MT8980(8×32)时隙交换矩阵芯片(Digital Time/Space Crosspoint Switch)为基础来实现数字中继接口功能。
- This paper introduce the two popular Digital Trunking Mobile System(DTMS) in the world and discuss the DTMS developed by our country. 简要介绍了目前国际上两种主流数字集群通信系统体制以及我国自主研发的数字集群通信系统;
- A small scale digital trunking communication system based on the spread spectrum technology was presented. 介绍了一种基于扩频技术的全双工通信小型集群通信系统。
- The company has become a digital trunking operator total commercial telecommunications network operators. 公司已成为国内一家经营数字集群商业共网的电信运营商。
- In the area of communications, digital trunked 800M Chengtie using the telephone, wireless accessibility achieved. 在通信方面，城铁采用的是800M数字集群电话，实现了无障碍无线通信。
- The most popular digital Trunked systems are North-American APCO P25、iDEN and European TETRA. 目前，世界上应用最多的数字集群系统主要有北美的APCO P25、iDEN和欧洲的TETRA。
- Welcome the Era of Police Digital Trunk Communication 未雨绸缪迎接公安数字集群时代的到来
- As the group call is different to the common call,it is necessary to study the handover technology in TD-SCDMA digital trunking system. 由于组呼与传统的呼叫有很大的差异,所以有必要对它们的切换技术进行详尽地研究。
- Although digital trunking dispatch service is very important for GSM-R, it still has some problems in specification which spare description may not be ignored. 摘要集群调度通信是GSM-R系统的重要业务，因相关协议规范存在空白点，业务实现可能存在不确定因素。
- Design of sound prompt module in digital trunking system 数字集群通信系统中语音提示模块的设计
- trunk module 干线模型
- manual trunk module 人工中继模块
- Orientation of Navy's Digital Trunk System Communication System Development 海军数字集群通信系统发展取向
- board trunk module 交换台中继线模块
- The structure of radio-based dispatching system in Shenzhen Metro is introduced with elaboration on the composition and technical characteristics of NOKIA-TETRA digital trunking system and its application in Shenzhen Metro. 介绍深圳地铁无线调度系统结构,详细说明NOKIA-TETRA数字集群系统的构成、技术特性,以及数字集群系统在深圳地铁无线调度系统中的应用。
- analog trunk module 模拟中继模块
- In this thesis, the wireline telephone gateway interface will be researched for the interconnection between digital trunking communication system and wireline telephone systems (such as PABX, PSTN etc.) . 本文研究的电话网关接口就是要实现数字集群通信系统和有线电话系统(如PABX、PSTN等)互联的接口。
