MONITORING OF A PASSIVE OPTICAL NETWORK (PON)

摘要

A Passive Optical Network, PON, comprising an Optical Line Termination, OLT, connected to one or more Optical Network Terminals, ONT, over an Optical Distribution Network, ODN, is monitored by a monitoring device. The monitoring device comprises an Optical Frequency Domain Reflectometer, OFDR, and is arranged to monitor the optical power received by the OLT and the ONTs of the PON, and to perform transceiver analysis of the OLT and the ONTs, combined with an OFDR analysis of the ODN, based on the monitored optical power violating a threshold.

主权项

1. A method of monitoring a Passive Optical Network, PON, comprising an Optical Line Termination, OLT, connected to one or more Optical Network Terminals, ONT, over an Optical Distribution Network, ODN, wherein the method comprises:
monitoring optical power received by at least one ONT from the OLT, and optical power received by the OLT from each of said at least one ONT; measuring one or more transceiver parameters of the OLT and an ONT, based on the optical power received by the ONT and/or by the OLT violating a defined threshold for received optical power, and performing Optical Frequency Domain Reflectometry, OFDR, for locating a fault in the ODN.