Patent ID: 9577748
Date: 2017-02-21
CPC Classifications: G01M,H04B,H04Q

Claim:
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.