card transceiver 中文意思是什麼
card transceiver
解釋
卡片讀出穿孔機- card : n 1 紙牌；〈pl 〉紙牌機。2 卡片（紙）；明信片；請柬；入場券；名片。3 節目單；程序單；戲單；菜單；...
- transceiver : n. 【無線電】收發兩用機。
-
This card largely depends on three integrate chips to fulfill its function : 1 ) nic control main chip, corresponding the mac sublayer of ethernet, to realize csma / cd media access protocol, manage the sending and receiving buffers integrated on the chip and provide motherboard pci interface. 2 ) serdes ( serializing and deserializing ) chip, corresponding pcs and pma sublayers in ethernet, mainly to complete 8b / 10b coding and convert 10 bits parallel data to serial data, and convert them again at the receiving end. 3 ) fibre transceiver unit, completing light - electrical conversion of seri
該網卡主要由3塊集成的晶元完成其功能，分別是i ）網路控制主晶元，對應于以太網的mac子層，主要完成csmaicd介質訪問協議，管理片上集成的發送和接收緩沖區，並提供和主板p0總線的介面： b ） s rd s （串列解串列化器）晶元，對應于以太同的pcs和pma子層，主要完成sb lob編碼並將10位并行的數據轉換為串列數據，在接收端完成相反的功能：涌）光纖收發器，完成串列數據的光電轉換功能。 -
In order to expand the transceiver channel so as to solve the restrains of card slot number in data loop system, the quad el transceiver is designed, which enlarge the band breadth of data channel from 2mbps to 8mbps, and enables 120 clients simultaneously to communicate
該四路e1收發器能夠提供四條e1鏈路，把帶寬從2mbps提高到8mbps ，能夠同時負載120個用戶的通信，解決了數字環路系統中卡槽數目限制的問題。 -
Then the author presents the structure and the working principle of digital loop carrier system, in other word, the application environment of quad el transceiver, and then the author highlights the role that quad el card plays in the whole system, consequently, the author introduces the systematical structure and features of arm embedded processor. concerning about the restrict requirement of time during data transmission, the author of this paper also introduces the fpga technology, which is used mainly for providing the system with accurate time
接著敘述了數字環路系統的結構和工作原理，即四路e1收發器的應用環境，著重介紹了四路e1板卡在整個系統中所扮演的角色和嵌入式處理器arm的體系結構和特點，鑒于數據傳輸中對時鐘的要求比較嚴格，本文還介紹了fpga技術，應用它主要是為系統提供各個精確的時鐘。
分享友人