H - Electricity – 04 – B
Patent
H - Electricity
04
B
325/1
H04B 10/12 (2006.01) H04B 10/00 (2006.01)
Patent
CA 2015926
F20707CA ABSTRACT Optical Transmission Apparatus The apparatus comprises at least one standby optical fibre transmission path and at least one worker optical fibre transmission path. Each end of the paths is terminated by an associated transmit and receive electro-optic converters. The converters are connected to respective electrical protection switching devices. At least one optical switching means interfaces the electro-optic converters with the optical fibres at one end of the transmission paths and is arranged to switch the optical transmission between worker and standby fibres when a fault is detected.
Borden Ladner Gervais Llp
Gec Plessey Telecommunications Limited
Hardwick David William
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