小型化SDH綜合設(shè)備的研制

摘 要:隨著信息產(chǎn)業(yè)技術(shù)的發(fā)展，多元化的業(yè)務(wù)需求與日俱增，特別是多業(yè)務(wù)接入與低成本投入、簡單維護之間的矛盾越來越突出。該方案研制的小型化SDH綜合業(yè)務(wù)設(shè)備較好地解決了這一矛盾。該設(shè)備集語音、數(shù)據(jù)、SDH傳輸和以太網(wǎng)技術(shù)于一身，采用國際先進的集成電路、可編程邏輯電路和高速微處理器研制而成，完成光口、E1接口、用戶接口的信號處理，并具有安全可靠、性能穩(wěn)定、價格低廉、攜帶方便，有較強的移動性、靈活性等特點。該設(shè)備已部分應(yīng)用于電力、高速公路、智能小區(qū)等領(lǐng)域，滿足了用戶需要。

關(guān)鍵詞:小型化設(shè)備; SDH綜合設(shè)備; 模塊技術(shù); 單光口STM1模塊; 雙光口STM1模塊

中圖分類號:TN919; TP391文獻標(biāo)識碼:A

文章編號:1004-373X(2010)15-0128-04

Development of Miniaturized SDH Comprehensive Equipments

LIU Xiao-yun

(Xi’an Railway Vocational and Technical Institute， Xi’an 710014，China)

Abstract: Along with the development of information technology， the diversification business demands keep increasing with each passing day， especially the contradictions between multi-service access and low-cost investment， and multi-service access and simple maintenance are increasingly obvious. However， the contradiction has been solved by the miniaturization SDH comprehensive equipment developed with the scheme. The equipment developed with international advanced integrated circuits， programmable logic circuits and high-speed microprocessors involves voice， data， SDH and Ethernet technology， can complete the signal processing of optical port， E1 interface and user interface， and has such characters as safe， reliable and stable performance， low price， stronger mobility and flexibility. The equipments were applied to power systems， super highways， intelligent community and other fields， and satisfied all the customers.

Keywords: miniaturization equipment; SDH comprehensive device; module technology; single light mouth STM1 module; double light mouth STM1 module

0 引 言

本項目研制的SDH STM1模塊，是一個功能完整、可以獨立工作的小型化SDH綜合設(shè)備。該模塊插入現(xiàn)有的電路交換子框中，為子框其他模塊提供E1中繼傳輸電路，同時也為外部系統(tǒng)或設(shè)備提供2 Mb/s透明傳輸電路和以太網(wǎng)數(shù)據(jù)的傳輸，并與在網(wǎng)的主流SDH設(shè)備有很好的兼容性。

1 研制目標(biāo)

1.1 設(shè)備功能

(1) 提供16個2 Mb/s電路的透明傳輸，擴展一塊電路板后，可提供32個2 Mb/s電路的透明傳輸;

(2) 提供10M/100M以太網(wǎng)接口，實現(xiàn)以太網(wǎng)數(shù)據(jù)的傳輸;

(3) 單光口工作在TM模式，雙光口可工作在TM模式或ADM模式;

(4) 可組成環(huán)型網(wǎng)、鏈型網(wǎng)，或點對點工作;

(5) 本地振蕩、線路時鐘、2 MHz支路時鐘三種時鐘同步方式。

1.2 兼容性要求

(1) 遵循ITU-T 相關(guān)建議;

(2) 采用國際主流供應(yīng)商提供的專用芯片設(shè)計;

(3) 在網(wǎng)絡(luò)接口上與在網(wǎng)的主流設(shè)備兼容。……