公开(公告)号：US11018771B2

公开(公告)日：2021-05-25

申请号：US14771998

申请日：2014-03-04

申请人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

发明人： Albert Rafel Porti ,  Neil James Parkin ,  Stephen Charles Beaumont

IPC分类号： H04B10/032 ,  H04B10/27 ,  H04J14/02 ,  H04Q11/00 ,  H04L12/28 ,  H04M11/06 ,  H04L12/24 ,  H04B10/038

摘要： Embodiments disclosed herein provide a hybrid fiber-copper access network in which a main OLT sends data to the DSLAMs via a plurality of point-to-point optical fiber connections. A standby OLT is provided which has a plurality of point-to-multi-point optical fiber connections to the DSLAMs. In the event of a failure, data can be sent to some of the DSLAMs via the standby OLT and the point-to-multi-point optical fiber connections. Following the rectification of the fault, the network can revert to its normal state and transmit data to the DSLAMs via the main OLT and the plurality of point-to-point optical fiber connections.