Patent ID: 8391713

Claim:
A device comprising: a communication interface to communicate with an optical line terminal; and a processor to: set an optical path from the optical line terminal to an optical network terminal, the optical path including a combiner configured to receive output of the optical line terminal and a data device, the combiner combining the outputs to form a combined signal, a switch configured to switch to one or more optical network elements in the optical path, the switch receiving the combined signal from the combiner and outputting a signal attenuated by the one or more optical network elements, and an optical splitter configured to receive the attenuated signal, split the attenuated signal, and feed one of the split signals into the optical network terminal, obtain, from the optical line terminal, a status reading of the optical network terminal when the optical path is set, obtain, from the optical line terminal, a power reading at the optical network terminal when the optical path is set, and record the status reading and the power reading.