Patent ID: 9596362
Date: 2017-03-14
CPC Classifications: G01R,H04M

Claim:
1. A method for evaluating the transmission resistance associated with an electrical transmission circuit that conveys power via multiple conductors from a remote power source to a local communications device by collecting transmission resistance data, comprising: applying a load across at least two of the conductors in the transmission circuit; incrementally increasing the output voltage of the remote power source; removing the load from across the conductors when a maximum voltage has been received in, at or near the local communications device thereby defining an inflection point in the current flowing through the transmission circuit; and detecting or noting the following transmission resistance data: (a) the output voltage of the remote power source at the inflection point; (b) the maximum voltage at which the inflection point is created by removing the load from the conductors; and (c) the current flowing through the conductors immediately prior to the inflection point.