| 摘要 |
Methods, apparatus and systems for regenerating, monitoring and bridging optical signals through an optical cross-connect switch to provide increased reliability. A self testing method, apparatus and system for an optical cros s- connect switch. An optical-to-electrical-to-optical converter (O/E/O) is provided in an optical cross-connect switch to provide optical-electrical- optical conversion. I/O port cards having an optical-to-electrical-to-optica l converter are referred to as smart port cards while I/O port cards without a n optical-to-electrical-to-optical converter are referred to as passive port cards. Test port/monitor cards are also provided for testing optical cross- connect switches. Methods, apparatus and systems for performing bridging, te st access, and supporting redundant optical switch fabrics are also disclosed.< /SDOAB>
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