Method and device for preventing signal loss in unterminated...

Details Method and device for preventing signal loss in unterminated... Method and device for preventing signal loss in unterminated...

H - Electricity

04

M

H04M 1/74 (2006.01) H04M 1/72 (2006.01) H04M 1/76 (2006.01) H04M 11/06 (2006.01)

Patent

CA 2358379

A method and device for avoiding signal cancellation caused by a unterminated bridge taps, provides a cable extension, preferably in the form of a pair of coils having an impedance matching the impedance of the telephone wire, respectively coupling the conductors in each bridge tap to the incoming ring and tip conductors. The cable extension increases the effective length of the bridge tap, thereby eliminating destructive interference between the incoming telecommunications signal and the signal reflected from the unterminated end. In the preferred embodiment the cable extension is adaptable to various lengths by a switching network.

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