Telefonaktiebolaget Lm Ericsson (publ)

Stefano Parodi

Roberto Magri

Riccardo Ceccatelli

Stefano Orsi

Annamaria Fulignoli

Alberto Mari

Giorgio Andreoli Armanni

A system () is disclosed comprising an optical transceiver () and a portable device (). The optical transceiver comprises a laser () configured to generate an optical signal and a port () operable to transmit an optical signal generated by the laser over an optical fiber connected to the port. The portable device comprises a video camera () and an optical display (). The optical transceiver () is configured to transmit an optical signal containing connectivity information for an optical fiber connected to the port of the optical transceiver via the optical fiber. The portable device () is configured to receive the optical signal transmitted via the optical fiber using the portable device video camera, and to display the connectivity information contained in the optical signal on the portable device optical display. Also disclosed are a controller () for an optical transceiver, a portable device (), and methods performed by a controller and a portable device.

Operation of an optical transceiver

A communications network remote node having a downstream optical circuit configured to receive downstream, DS, optical signals from an active main node and from a standby main node, the downstream optical circuit switchable between a working mode and a protection mode. Optical receivers are configured to receive the demultiplexed downstream optical signals and output encapsulated downstream client signals. Optical transmitters are configured to receive encapsulated upstream client signals and to transmit upstream, US, optical signals at upstream wavelengths carrying the encapsulated upstream client signals. An upstream optical circuit is configured to multiplex the upstream optical signals carrying the encapsulated upstream client signals and to send the upstream optical signals to both main nodes. Processing circuitry is configured to extract downstream client signals and alignment data from encapsulated downstream client signals and form encapsulated upstream client signals by encapsulating upstream client signals and alignment data.

Optical transport network protection architecture, nodes and method

Growing community of inventors

Genoa, Italy

Stefano Parodi