High-speed Internet access and telecommunications network applications， which greatly promoted the development of access Telecom Access Network is an important component of the This paper provides an overview of the theoretical perspective of copper， fiber， wireless and other access network technologies and their At the same time， urban access network in accordance with the status quo， combined with fiber-optic access network hierarchical planning model for urban trunk optical fiber access network layer， distribution layer， such as planning and design are Also presented from a practical point of access layer， convergence layer， the core layer， such as xDSL access network systems should be designed six of the direction and focus of And to schools， hotels， family and other common examples of the current technology the most mature， most widely used of the ADSL
