Optical Access Network, Secondary Network Side Termination Node of an Optical Access Network, and Method for Operating a Network Side Termination Node

摘要

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.