宽带接入技术应用发展趋向

Broadband Access Application Technology Developing Trend

光纤接入到用户是实现用户宽带接入的最终目标,光纤到路边(FTTC+LAN)、光纤到大楼(FTTB+LAN)、光纤到小区(FTTD+LAN)以及光纤到楼层(FTTF+LAN)是中、近期比较现实的目标,通过巨大的铜线资源实现宽带接入的ADSL也是最重要的接入手段,本文重点介绍ADSL和FTTx+LAN两种宽带接入技术。实现宽带接入可以采用多种接入技术,由于目前尚无一种主导型技术可适用于任何场合和应用,接入技术的多元化也将是一个长期的态势。

Optical fiber access is the final way toenable users to broadband access Internet network in thefuture. As a transitional access technology, it is realistic waysfor people to finish this broadband access by the twistedcopper pair line through ADSL, or by user's local areanetwork through FTTB, FTTD, FTTC, FTTF etc. In this paper,we introduce these two kinds access technology: ADSL andFTTx+LAN, in detail. In the fact, as no one mainly accesstechnology predominates over others; the various broadbandaccess technology will co-exist in a rather long time.