1977-11-18
1979-07-24
Corbin, John K.
G02B 514
Patent
active
041621190
ABSTRACT:
A fiber optic device for providing a visual indication when a subassembly, such as an electronic "ATR box", is in place in a rack mounting arrangement with its electrical connections firmly mated with the corresponding rack connections within a small predetermined tolerance. A special fiber optic connector has first and second parts, one of which is attached to the ATR box and the other mounting in the rack for mating concurrently with the mating of the electrical connections. A number of such devices may be provided in a rack of equipment, each fixed rack mounted connector being supplied with a light signal via a length of fiber optic conductor, preferably from a common light source. Within the ATR box unit itself, another length of fiber optic conductor connects the fiber optic connector to the front panel or some other location for convenient observation. In one of the mating connector parts, a slit diaphragm prevents any appreciable transfer of light between the optical fibers of the connector parts until said diaphragm is penetrated and deflected by the opposing optical fiber during the last relatively small increment of movement into the mating operation.
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Bedgood et al., Electrical Communication, vol. 51, No. 2, Feb. 1976, Demountable Connectors for Optical Fiber Systems.
Corbin John K.
International Telephone and Telegraph Corporation
Levy Stewart
O'Neil William T.
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