Adtran Gmbh

Nokia Siemens Networks Oy

Henrique Silva

Marek Hajduczenia

Paulo Miguel Monteiro

Silvia Pato

Nuno Borges

Pedro Inacio

An optical splitter for a passive optical network for telecommunication signal transmission with an optical line terminal includes a wavelength selective optical electrical converter, an AC/DC splitter, an energy reservoir and optical switches, where the splitter comprises also a data transmission processing module by which the optical switches can be controlled according to data signals transmitted from the optical line terminal.

Failsafe optical splitter and method to isolate faults in a passive optical network

The invention relates to a method to discover Optical Network Units (ONU) with different speed capabilities in an Ethernet Passive Optical Network (EPON) by an Optical Line Termination (OLT), where logical links in the network are identified by Logical Link IDs, and the OLT can transmit and receive data with 1 Gbit/s-speed (1 G) and 10 Gbit/s-speed (10 G), and the discovery process is handled in the OLT by a Multi Point Control Process (MPCP), which exchanges messages as Data Units (MPCPDU) with the ONUs. This is achieved by extending the standard MPCPDUs in a way, that backward compatability is assured.

Two and three-stroke discovery process for 10G-EPONs

Growing community of inventors

Coimbra, Portugal

Henrique Silva