摘 要
隨著信息化建設(shè)的快速發(fā)展，作為光電介質(zhì)轉(zhuǎn)換的關(guān)鍵設(shè)備，光纖收發(fā)器越來越受到人們的重視，同時人們對光纖收發(fā)器的要求越來越高，具體表現(xiàn)在智能化、穩(wěn)定行和網(wǎng)管控制等方面。智能化方面，要支持鏈路狀態(tài)故障轉(zhuǎn)移、流量控制、端口自協(xié)商等功能。穩(wěn)定性方面，光纖收發(fā)器應(yīng)能更好地適應(yīng)實(shí)際的網(wǎng)絡(luò)環(huán)境。網(wǎng)管控制方面，要求管理者能夠很容易的監(jiān)控本地和遠(yuǎn)端光纖收發(fā)器，能夠降低網(wǎng)絡(luò)維護(hù)的成本。本文通過對國內(nèi)外光纖收發(fā)器的分析和研究，設(shè)計出一種智能光纖收發(fā)器系統(tǒng)。
所設(shè)計的智能光纖收發(fā)器系統(tǒng)主要包括客戶端、網(wǎng)絡(luò)管理單元、光電轉(zhuǎn)換單元和電源電路四部分。系統(tǒng)采用ARM7TDMI-S微控制器LPC2210為硬件核心，μCLinux操作系統(tǒng)為軟件平臺。通過對光纖收發(fā)器的功能以及工作原理研究，硬件設(shè)計了以ARM處理器（LPC2210）為核心的網(wǎng)絡(luò)管理單元；以IP113S光電介質(zhì)轉(zhuǎn)換芯片為核心的光電轉(zhuǎn)換單元；以及系統(tǒng)電源電路。
整個系統(tǒng)是基于B/S和C/S架構(gòu)設(shè)計的，B/S架構(gòu)是客戶端可以是任何一臺連入因特網(wǎng)的PC機(jī)，并且不需要安裝任何專用的軟件就可以查看智能光纖收發(fā)器系統(tǒng)的監(jiān)控畫面。C/S架構(gòu)則需要在客戶端安裝相關(guān)網(wǎng)絡(luò)管理軟件（SNMPc V6）以及基于MiniGUI的液晶顯示。系統(tǒng)的進(jìn)行了μCLinux操作系統(tǒng)的移植；內(nèi)嵌Web服務(wù)器；移植CMU-SUNP（Camegie Mellon University-Simple Network Management protocol）數(shù)據(jù)包；驅(qū)動程序與應(yīng)用程序的開發(fā)。本設(shè)計從硬件和軟件上均遵循了低功耗的設(shè)計思想。
對設(shè)計出來的整個系統(tǒng)進(jìn)行測試，能實(shí)現(xiàn)對光電轉(zhuǎn)換單元進(jìn)行參數(shù)的自動檢測、控制調(diào)節(jié)功能，整個系統(tǒng)運(yùn)行穩(wěn)定，達(dá)到了預(yù)期的目標(biāo)。并開展了智能收發(fā)器系統(tǒng)實(shí)驗(yàn)研究。論文所研制的智能光纖收發(fā)器系統(tǒng)，在實(shí)驗(yàn)中取得了較好的效果，可以用于實(shí)際運(yùn)行中，為下一代光纖收發(fā)器系統(tǒng)奠定了基礎(chǔ)。

關(guān)鍵詞 光纖收發(fā)器；網(wǎng)絡(luò)管理；嵌入式系統(tǒng)；ARM


Abstract
With the rapid development of information technology, as a key equipment for optical media conversion, Fiber optical transceivers attracts more and more people’s attention, at the same time, people’s demand for fiber optical transceivers become increasing too. Embodied in intelligent, stable and network management and so on. Intelligent, it should support link fault pass-through, flow-control, port auto-negotiation function and so on. Stability, the fiber optical transceiver should be able to better adapt to the actual network environment. Network management, requires management to easily monitor local and remote fiber optical transceivers, reduce network maintenanace costs. Based on the analysis and research of domestic and international fiber optical transceivers, designed an intelligent optical transceiver systems.
The intelligent fiber optical transceivers system designed includes client, network management unit, photoelectric conversion unit, the system power supply circuit diagram four parts. The system uses ARM7TDMI-S microcontroller LPC2210 as the core of hardware, and the μCLinux operating system as the platform of software. Through the studying of fiber optical transceiver functions and working principle. It takes the ARM processor (LPC2210) as the core of network management unit and the IP113S optical media converter chip as the core of photoelectric conversion unit. And power circuit diagram of the system.
The whole system is based on B/S and C/S structure, B/S structure is that the client computer can be any PC which is connected to the Internet, and you can view the monitor picture of the intelligent fiber optical transceivers system, not needing to install any special software. C/S structure is that the client computer need to install related network management software (SNMPc V6) and LCD interface based on MiniGUI. The design has completed the transplanting of µCLinux operating system; the embedding of Web server; the transplanting of CMU-SNMP (Camegie Mellon University-Simple Network Management protocol) packet; the developing of driver and application program. This design follows to the idea of low power from hardware and software.
We have tested the whole system after it was designed. The system can achieve the function of detecting and regulating the photoelectric conversion unit. The system works stable, and it reaches the desired goal. Experiments based on the intelligent fiber optical transceivers system have been done.
The intelligent fiber optical transceiver system has achieved good results in the experiment, It can be used in the actual operation, and it lays the foundation for the next generation of fiber optical transceiver system

Key Words fiber optical transceivers; network management; embedded systems; ARM

目 錄
摘 要 I
Abstract III
第1章 緒論 1
1.1 課題背景及意義 1
1.1.1 課題背景 1
1.1.2 課題研究的意義 1
1.1.3 光纖收發(fā)器分類以及應(yīng)用 2
1.2 國內(nèi)外研究現(xiàn)狀與發(fā)展趨勢 4
1.2.1 國內(nèi)外研究現(xiàn)狀 4
1.2.2 光纖收發(fā)器的發(fā)展趨勢 6
1.3 論文的研究內(nèi)容與主要工作 7
1.4 本章小結(jié) 8
第2章 光網(wǎng)絡(luò)通信技術(shù)概況 9
2.1 引言 9
2.2 光纖的傳輸特性 9
2.2.1 衰減特性 9
2.2.2 色散特性 10
2.3 光纖信道中的線路編碼 11
2.4 激光二極管的頻率穩(wěn)定性 12
2.5 本章小節(jié) 13
第3章 智能光纖收發(fā)器系統(tǒng)總體方案設(shè)計 14
3.1 引言 14
3.2 系統(tǒng)整體結(jié)構(gòu)設(shè)計 14
3.2.1 遠(yuǎn)程網(wǎng)管的設(shè)計思想與研究方向 15-b..