Optical access network, secondary network side termination node of an optical access network, and method for operating a network side termination node

US8705955B2 · kind B2 · utility

Assignee

• ADVA AG Optical Networking · DE

Inventors

• Klaus Grobe · Planegg, DE
• Joerg-Peters Elbers · Fürstenfeldbruck, DE

Key dates

• Filing date: May 11, 2011
• Grant date: Apr 22, 2014
• Expiry date: Oct 5, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04J2014/0253
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

An optical access network has a first and a second network-side termination node, the first including a first transceiver arrangement connected to a first optical link, configured to send a first signal to a customer side termination node including a transceiver for receiving the first signal, and the second including a second transceiver arrangement connected to a second optical link and configured for sending a second signal to a transceiver of a customer-side termination node via the second link. The transceiver of the customer side termination node has a loopback element emitting a monitoring signal back to the network side termination nodes. Both network-side termination nodes have a link failure detector receiving the monitoring signal.