Apparatus for switching optical channel overhead in optical...

Details Apparatus for switching optical channel overhead in optical... Apparatus for switching optical channel overhead in optical...

2008-01-01

2008-01-01

Leung, Christina (Department: 2613)

Optical communications

Multiplex

Optical switching

C398S033000, C398S045000

Reexamination Certificate

active

10903548

ABSTRACT:
A switching apparatus for switching an optical channel overhead in an optical supervisory channel is disclosed. The switching apparatus can suppress a terminated optical channel defect occurred by a defect of upper layers of the optical channel or a defect of the optical channel transmitter and also can maintain the corresponding optical channel at the wavelength converted optical transport network system. Furthermore, an apparatus for forwarding an optical channel maintenance signal is disclosed too. The apparatus includes the switching apparatus and transmits only an add and drop optical channel maintenance signal information to the CPU and generate the LOS suppression signal with respect to the optical channel according to the occurrence of malfunction, thus directly transmitting the suppression signal to the corresponding optical channel unit.

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Switching circuit of optical channel overheads in optical supervisory channel, 3 pages.

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