Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1999-05-14
2000-08-01
Chan, Jason
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359117, 359125, 359164, 359110, H04B 1020, H04B 1000, H04J 1400, H04J 1402
Patent
active
060975156
ABSTRACT:
A switch in an optical network unit selectively couples line side ports of the line cards of the unit to individual line circuits in drop cable wiring extending to the customer premises served by the unit. The switchable optical network unit (SONU) permits rapid automated upgrades of service. For example, automatic switching of a line circuit to a line card offering an upgraded service together with automatic provisioning of the SONU to activate service through that line card provides the new upgraded service over the existing line circuit, without requiring a technician to install a new line card or manually connect the line card to the line circuit. If the drop cable to the customer premises includes a primary line circuit and an auxiliary line circuit, the line port can be switched over from the primary line circuit to the auxiliary line circuit to automatically restore service in the event of a failure of the primary line circuit. Alternatively, the SONU can automatically connect a line card for a new service to the auxiliary line circuit to provide second line service to the customer premise.
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Blake John
Highley Patricia
Mullally John
Pomp Steve
Ragg Walter
Bell Atlantic Network Services Inc.
Chan Jason
Sedighian Mohammad
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