公开(公告)号：US20040156635A1

公开(公告)日：2004-08-12

申请号：US10600713

申请日：2003-06-23

Applicant: Nortel Networks Limited

Inventor： Kent Evans Felske ,  Richard Brand ,  Eric Bernier

IPC: H04J014/00

CPC classification number: H04J14/0258 ,  H04B10/0779 ,  H04B2210/08 ,  H04J14/0227 ,  H04J14/0232 ,  H04J14/0245 ,  H04J14/0249 ,  H04J14/0282 ,  H04J14/0298 ,  H04Q11/0067 ,  H04Q2011/0083

Abstract: An optical network unit (ONU) interconnected by passive optical network (PON) equipment to an optical line terminal (OLT) is identified using secondary modulation of the optical carrier to impress an identifier of the ONU onto the carrier. This resolves a recurring ONU failure mode detection problem caused by failure of a laser driver that causes the ONU to be stuck in an on state.

Abstract translation: 通过无线光网络（PON）设备与光线路终端（OLT）互连的光网络单元（ONU），使用光载波的二次调制来识别ONU的标识符。 这解决了导致ONU被卡在导通状态的激光驱动器的故障引起的重复的ONU故障模式检测问题。