H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/12 (2006.01) H04B 10/00 (2006.01)
Patent
CA 2054443
A system for optical communication between first and second optical terminal stations, containing a plurality of working optical transmission lines each for connecting between the first and second optical terminal stations, a protection optical transmission line. Each of the first and second optical terminal stations contains a plurality of working pieces of optical terminal equipment, connected to the respective working optical transmission lines, a protection piece of optical terminal equipment connected to the protection optical transmission line, and a plurality of bidirectional optical signal paths, provided corresponding to the respective working pieces of optical terminal equipment, and each operative to connect the corresponding working piece of optical terminal equipment to the protection piece of optical terminal equipment. Each of the plurality of working pieces of optical terminal equipment comprises, first and second bidirectional optical ports one of the working optical transmission lines corresponding to the working piece of optical terminal equipment, and to one of the bidirectional optical signal paths corresponding to the working piece of optical terminal equipment. The protection piece of optical terminal equipment comprises third and fourth bidirectional optical ports respectively connected to the protection optical transmission line and to at least one of the plurality of bidirectional optical signal paths.
Fujimoto Naonobu
Fukushima Takeo
Iino Hatsumi
Kihara Takashi
Nishimura Koichi
Fujitsu Limited
Mcfadden Fincham
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