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[Program doc] G0707 DL : 0: sdh 标准 itu G0707.rar-SDH standard itu G0707.rar
Date : 2025-12-25 Size : 973kb User : 陈小冲
[Program doc] G0709 DL : 0: sdh 标准 itu G0709.rar-SDH standard itu G0709.rar
Date : 2025-12-25 Size : 146kb User : 陈小冲
[Program doc] StratixGX DL : 0: Stratix GX器件在SDH宽带交换中的应用-Stratix SDH serdes
Date : 2025-12-25 Size : 28kb User : fnd
[Program doc] EnergisNotelTraningMX-4500N DL : 0: nortel sdh training excellent sdh info for telecoms engineers
Date : 2025-12-25 Size : 3.67mb User : ada
[Program doc] NortelS-DMSTN-64XDXBLSRAdvancedOpticsOverview DL : 0: nortel sdh training excellent sdh info for telecoms engineers
Date : 2025-12-25 Size : 7.49mb User : ada
[Program doc] G.707-Y.1322-200312-I.pdf DL : 0: SDH-G.707 SDH的标准文件，介绍了SDH的帧结构。-SDH-G.707 SDH full description
Date : 2025-12-25 Size : 2.6mb User : 丁一
[Program doc] SDH_ptr DL : 0: 此文档是学习SDH指针技术的文档，有需要的可以参考使用。-This document is to study SDH pointer technical documentation, there is a need that can be reference.
Date : 2025-12-25 Size : 150kb User : 何柳
[Program doc] SDHyuanlipeixunshouji DL : 0: SDH原理培训手册，私家珍藏，拿出来和大家共享一下，一起学习，一起进步。-SDH Principles of training manuals, private collection, look out and share, learn together and progress together.
Date : 2025-12-25 Size : 854kb User : 张海
[Program doc] gtxsheji DL : 0: 本论文在简要阐述了各种光纤数字传输系统技术及其原理的基础上，通过比选确定出了符合钦州至崇左路段的较先进的光纤数字传输系统方案，确定其光纤通信系统采用SDH传输方案。在SDH传送网分层模型的基础上，对SDH传送网各层功能、信号流程、网络配置作了详细的阐述，同时说明了SDH传送网特有的复用映射原理。根据钦州至崇左路段的实际情况计算确定了系统中的重要参数，选择出了网络拓扑结构，按最坏值设计法进行了中继段长度的计算，编制了网络组织图、通道组织图及通信系统总体框图等。所设计的的高速公路光纤数字传输系统达到了能够同时传输语音、数据及图像的要求，并且满足了容量要求，实现了与相邻高速公路通信系统的相互连接。-The article,through compared to elects to determine,has conformed to Qinzhou to the Chongzuo road section ,which advanced optical fiber digital transmission system plan, had determined the optical fiber communications system using the SDH transmission plan in the principle foundation.In the SDH transmission network model foundation, each function of SDH transmission network,the signal flow simultaneously explained the SDH transmission network which uniqued multiplying mapping inciple.The computation had determined the system important parameter,had carried the worst value design law,the channel drafted pattern and the communications system overall diagram and so on. The highway optical fiber digital transmission system, hadbeen designed had achieved simultaneously transmiting the pronunciation on,the data and the image requestion has satisfied the capacity which has realized neighboring highway communications system mutual connection. Keywords： Expressway communication system O
Date : 2025-12-25 Size : 832kb User : lsj
[Program doc] SDH DL : 0: 实现以太网的配置，都是源程序，可以运行。-Ethernet configuration, all source code, you can run
Date : 2025-12-25 Size : 3.05mb User : 马芳
[Program doc] data_communication4th-chap17 DL : 0: sdh ppt,you can use for your design
Date : 2025-12-25 Size : 3.79mb User : deepu
[Program doc] SDH-POCKET-GUIDE DL : 0: SDH Related Document containing SDH Details
Date : 2025-12-25 Size : 694kb User : Ahsan Shah
[Program doc] SDH-STUDY DL : 0: SDH培训内部资料---内容详尽，包括技术发展等-SDH study-SONET
Date : 2025-12-25 Size : 233kb User : xiaoli
[Program doc] SDH DL : 0: this document gives the basics of sdh concepts in gerat detail
Date : 2025-12-25 Size : 87kb User : Ashish Mishra
[Program doc] SDH-Intro-for-Engineers-Marconi DL : 0: marconi introduction sdh optics
Date : 2025-12-25 Size : 1.76mb User : amw
[Program doc] 01-SDH-Fundamentals DL : 0: Huawei SDH Tutorial, A tutorial about Synchronous Digital Hierarchy.
Date : 2025-12-25 Size : 4.83mb User : milad
[Program doc] zxj10-sdh-voip DL : 0: ZXJ10局用数字程控交换机具有长话、市话或长市合一功能。ZXJ10具有强大的组网功能，在电信交换网中可以作为端局、汇接局、长途局、关口局来使用，还可以作为独立的STP或综合的STP来使用，另外还可以作为PBX来使用。ZXJ10既可以建立单模块局，也可以建立多模块局。母局与各交换模块间可以采用高速光纤连接。可以采用多种速率的内外置式PDH和SDH设备进行组网。组成PDH、SDH或二者混合的各类环形网、链形网、树形网络及混合形的网络。传统的电话网紧电路交换方式传输语音，所要求的传输宽带为64kbit/s。而所谓的VoIP是以IP分组交换网络为传输平台，对模拟的语音信号进行压缩、打包等一系列的特殊处理，使之可以采用无连接的UDP协议（用户数据报协议）进行传输。为了在一个IP网络上传输语音信号，要求几个元素和功能。最简单形式的网络由两个或多个具有VoIP功能和设备组成，这一设备通过一个IP网络连接。由此可看出，实际生活要实现ZXJ10和VOIP互通，还需通过SDH来传输，并且要采取保护措施。而由于程控交换为电路交换，而VOIP为分组交换，故需要在传输时设置媒体网关转化，通过中继达到互连的目的。 -ZXJ10 Bureau digital PBX with long distance , local or long- City One feature. ZXJ10 with powerful networking functions in the telecommunications switching network can be used as end office , tandem , toll office , gateways to use, but also can be used as stand-alone or integrated STP STP use , also can be used as a PBX . ZXJ10 can either build a single module, the module can also create multi- bureau . Among female office switching module can be used with high-speed fiber-optic connections. You can use a variety of the external rate of PDH and SDH networking equipment . Composed of PDH, SDH , or a mixture of both types of ring network , chain mesh , tree-shaped networks and hybrid networks . Conventional circuit-switched telephone network tight voice, broadband transmission is required 64kbit/s. The so-called VoIP network based on IP packet-switched transmission platform , the analog voice signal compression , packing and a series of special treatment, so that the connection can be u
Date : 2025-12-25 Size : 1.08mb User :
[Program doc] ATM-(SDH-DWDM-Training-Material) DL : 0: ATM,SDH, DWDM Training Material. a very good documents for student and engeener to devlop and stady a differents telecommunication systems. for engeener there is a good chapter for equipments instatlation.
Date : 2025-12-25 Size : 7.5mb User : rach
[Program doc] Logic-Compos-SDH DL : 0: Logic composition of SDH Equipment in communication systems
Date : 2025-12-25 Size : 231kb User : Nkubito
[Program doc] ch03-SONET-SDH DL : 0: SONET-SDH in telecom network
Date : 2025-12-25 Size : 2.56mb User : Dan

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