北京市海淀區清河大樓戊44號 100085
摘要 隨著當代通信和網絡的進一步發展，話音、數據和圖像等多媒體通信成為當前研究的熱點，數據傳輸量以指數形式增加，這對通信傳輸系統的處理能力和吞吐能力提出了更高的要求，使同步數字體系(SDH)網絡趨于復雜，容量也越來越大。SDH是一種將復接、線路傳輸及交換功能融為一體，可實現網絡保護管理、實時業務監控等多項功能，能大大提高網絡資源利用率、實現靈活可靠和高效的網絡運行與維護，成為當今世界信息領域在傳輸技術方面的發展和應用的熱點。SDH數字交叉連接設備(DXC)作為SDH傳輸系統的重要組成部分，是一種兼有復用、配線、保護/恢復、監控和網管的多功能傳輸設備，對整個光纖系統的傳輸能力有著直接的影響，已經成為評價SDH系統傳輸能力的一個重要指標。
關鍵詞 同步數字體系 數字交叉連接 光纖傳輸系統 FPGA
The design of optic date cross connect module
Wang Yongai
Beijing haidian district,Qinghe building Wu-44 100085
Abstract
These years，with the further development of communication and network technologies，multimedia communication，such as the transmission of vioce，data and pictures，has becomes a research hot spot．The through put of data transmission service increases exponentially,so it requires the communication transmission systems providing much enhanced data progressing ability and capacity．At the same time,SDH network has to accommodate its complexity and performance to data transmission service．As one of the most key parts of SDH transmission system，SDH digital cross connect equipment have multiple functions，such as multiplexing connection layout，protection,recovery,real-time check and control and network management．The performance of SDH system DXC has great effect on the whole optic communication，and is considered as an important performance guidline of SDH transmission equipment capabilities．
Keywords Synchrounous Digital Hierarchy；Date Cross connect；
optic-fibre transimission system； FPGA
參考文獻
【1】黃光霞、閻鴻森．同步數字交叉連接系統的設計與實現．西安交通大學，2002.
【2】Donald E．Thomas；Philip R．Moorby．The Verilog(r)Hardware Description Language．Kluwer Academic Publishers，2002.
【3】尤克主編．現代交換技術．北京：機械工業出版社，2004.
作者簡介：汪永愛（1980-），女，漢族，安徽人，碩士；
