Raynet Corporation

Ralph A Narciso

Thomas E Giles

Paulmer M Soderberg

Donald J Martin

David T Lowe

Kristin K Foss

Clifford H Greenman

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 acknowledgment return signal, or a default return signal. The test circuit at the subscriber interface unit then analyzes 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.

Coupler verification test circuit

A method of providing optical signal transmission past an optical fiber section in need of repair includes withdrawing an optical signal from the fiber upstream of the section and injecting the signal into the fiber downstream of the section in a passive manner while the section is being repaired.

Method of repairing an optical fiber

Growing community of inventors

Woodside, CA, United States of America

Ralph A Narciso