公开(公告)号：US10057668B2

公开(公告)日：2018-08-21

申请号：US15075270

申请日：2016-03-21

申请人： AT&T INTELLECTUAL PROPERTY I, LP

发明人： William E. Rollins ,  Eric S. Forbes ,  Arvind Ramdas Mallya

IPC分类号： H04J14/00 ,  H04Q11/00 ,  H04B10/80 ,  H04B10/2581 ,  H04B10/272

CPC分类号： H04Q11/0071 ,  H04B10/2581 ,  H04B10/272 ,  H04B10/808

摘要： A network interface device (NID) demarcates an access network and a premises network. The NID receives a broadband signal via an access network and transmits optical device signals to pieces of premises equipment. The broadband signal may be a single-mode fiber (SMF) optical signal transmitted over an SMF cable. In these embodiments, the NID may include a transponder including a first stage to convert the SMF signal to an intermediate electrical signal and a second stage to convert the intermediate electrical signal to a premises optical signal. In other embodiments, the broadband signal may be a very high bit rate digital subscriber line (VDSL) or other type of electrical signal and the NID's transponder may convert the VDSL signal to the premises optical signal. The NID may further include a multiplexer to multiplex the premises optical signal into the optical device signals for delivery to premises devices via corresponding premises device ports and plastic optical fiber cables.