With communication technology and automatic control technology,the rapid development of intelligent building in developed countries.China has in recent years towards the information society,people's living and working with communication,information closer relations,the informational society is changing our way of life and work habits,but also to the traditional residence.People's living environment for improving,hope to have a safe,comfortable,convenient,intelligent community and so on all over China,and vigorous development has become the mainstream of development in the 21st century architecture.
The computer network technology is currently one of the most popular technology industry,we can is divided into two parts:the Internet backbone and access.That is the end user access and backbone network connection between parts.Along with the fast speed,the backbone of broadband access technology began to emerge.From the perspective of broadband access,especially,fiber optical access by wireless access method will dominate.This paper summarized the broadband access technology,analyzes its disadvantages.