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The large capacity DXC data cross Fuyongshebei design and research

Author: TangJingXiong
Tutor: ChenZhiGang
School: Central South University
Course: Applied Computer Technology
Keywords: DXC Non-blocking T-S-T network Synchronous clock
CLC: TN915.02
Type: Master's thesis
Year: 2005
Downloads: 37
Quote: 0
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Abstract


Effective use of network resources , the increasing complexity of circuit-switched , scheduling and management capacity , and to ensure the reliability of the network , invulnerability , etc. , are important issues that must be faced by each operator . The powerful technology of digital cross- connect (DXC) solutions automatically to the most flexible , efficient and reliable way , to the maximum extent possible the use of network capacity . DXC-128 data cross Fuyongshebei College of Information Science and Engineering was first introduced to the public and private networks based group access , data transmission and provides a set of state-of-the-art solutions . Authors design DXC system successfully used MT90820 composed of modular TST switch fabric , and lay a good foundation for future larger capacity DXC development ; solve any line clock extraction and synchronous clock distribution problems, any channel can be completed extracts a synchronous clock from the line , to complete the link networking needs . The solution can be used in future communication systems developed . DXC-128 data cross than traditional DXC Multiplexer application port configuration and the number , more flexibility . The n × m have nonblocking cross-connect function ( max nm ≤ 128 ) , bears a combiner function 31 E1 timeslot . DXC-128 the data cross Fuyongshebei overall structure of the main control board ( double hot spare ) in the form of the the common E1 interface board , all circuit supports hot-swappable . Around discussion of how to implement data cross Fuyongshebei DXC-128 , as well as issues that require their attention . The article first introduces the DXC-128 the data cross Fuyongshebei the concept and status quo . The second chapter describes the overall system design , the design of the main points and difficult , large-capacity the DXC data cross exchange structure . Chapter around the switch fabric design to introduce the principle of a digital exchange , basic connector types , further elaborated of MT90820 the project , TST -switched networks . Types of synchronization , and combined projects of the fourth chapter describes the system has been further elaborated on the clock extraction and distribution . The fifth chapter briefly describes several important issues in high-speed PCB layout and countermeasures . Chapter VI summarizes the characteristics and advantages of the system , talk the talk about the system to achieve the progress .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Communication network > General issues > Communication network structure and design
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