Method of monitoring a connectivity of an optical access terminal in an optical access network

摘要

Proposed is a method of monitoring a connectivity of an optical network terminal to an optical output port of a remote node in an optical access network. A network analyzer transmits a control signal that indicates a request for modulating a power level of an optical downstream signal at a dedicated optical output port of a remote node. A controller receives the control signal from the network analyzer and transmits an output control signal indicating the output port to said remote node. The remote node receives the output control signal and activates an optical modulation device present at the output port. An optical network terminal indicates reception levels of a received downstream signal for successive time instances. The network analyzer retrieves reception level data and furthermore derives a potential connection of the optical network terminal to the dedicated output port.