Switchable optical network unit

Optical: systems and elements – Deflection using a moving element – Using a periodically moving element

Patent

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Details

359125, 359164, H04B 1020

Patent

active

060025026

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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