Coupler verification test circuit

Details Coupler verification test circuit Coupler verification test circuit

H - Electricity

04

M

H04M 3/28 (2006.01) H04B 3/46 (2006.01) H04B 10/08 (2006.01) H04B 17/00 (2006.01)

Patent

CA 2065458

ABSTRACT OF THE DISCLOSURE A coupler verification test circuit includes first and second circuits one of which is disposed at a head end of an optical fiber network and the other of which is disposed at a subscriber interface unit to be attached to the network when the head end is not operational. The subscriber interface circuit transmits instructions to a transceiver board in the subscriber interface unit for transmission to the network head end whereat the circuit thereat generates either no return signal, an acknowledgement return signal, or a default return signal. The test circuit at the subscriber interface unit then analyzed the return signal and visually indicates to a craftsman whether or not the transceiver board and other components of the SIU are operating correctly, e.g. whether or not the acknowledgement signal was returned and detected.

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