US 2010/0166429 A1Published application

Customer premises optical network unit

AssigneeFurukawa Electric Co., Ltd.

InventorsKunio Odaka, Katsuya Aboshi, Kazutaka Simoosako

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Abstract

There is provided a customer premises optical network unit (ONU) capable of reading management signals and of outputting data through an external node by using I2C serial interfaces. In the ONU, an ONU functioning section has another serial signal terminal and is connected with a first management processing section through a sub-serial transmission path. The first management processing section is also connected with a MSA interface module through an additional monitoring signal transmission path and a monitoring signal transmission path. The monitoring signal transmission path on the side of the MSA interface module is connected with a sub-I/F section. A part of management signals set in an OAM layer of a signal transmitted between an OLT and the ONU may be outputted to an external node by using the first management processing section, the additional monitoring signal transmission path and the monitoring signal transmission path.

Claims7

Dependent claims

A customer premises optical network unit connected with a center-side optical line termination through optical transmission paths and with an external node through a MSA (Multi-source Agreement) interface to perform termination processes, comprising:

an electrical/optical converting section connected with said center-side optical line termination to perform optical/electrical conversion and electrical/optical conversion of signals;
an optical network unit functioning section connected with said electrical/optical converting section to terminate said signals;
a serial/parallel converting section connected with said optical network unit functioning section to perform serial/parallel conversion and parallel/serial conversion of said signals;
a MSA interface module having a main I/F (interface) section connected with said serial/parallel converting section to input/output said signals to/from said external node and a sub-I/F section for inputting/outputting serial signals;
a first management processing section connected with said optical network unit functioning section through a serial signal line or parallel signal line to receive part of said terminated signals and to convert the part of said signals into a serial signal;
a monitoring signal transmission path for transmitting said serial signal from said first management processing section to said sub-I/F section;
a second management processing section connected with said electrical/optical converting section to receive predetermined physical data and to output the physical data by converting into a serial signal;
and
another monitoring signal transmission path for connecting said second management processing section with said sub-I/F section;
wherein said monitoring signal transmission path is connected with said sub-I/F section through said other monitoring signal transmission path.

7 more elements

an electrical/optical converting section connected with said center-side optical line termination to perform optical/electrical conversion and electrical/optical conversion of signals;
an optical network unit functioning section connected with said electrical/optical converting section to terminate said signals;
a serial/parallel converting section connected with said optical network unit functioning section to perform serial/parallel conversion and parallel/serial conversion of said signals;
a MSA interface module having a main I/F (interface) section connected with said serial/parallel converting section to input/output said signals to/from said external node and a sub-I/F section for inputting/outputting serial signals;
a first management processing section connected with said optical network unit functioning section through a serial signal line or parallel signal line to receive part of said terminated signals and to convert the part of said signals into a serial signal;
and
a monitoring signal transmission path for transmitting said serial signal from said first management processing section to said sub-I/F section;
wherein said first management processing section is connected further with said electrical/optical converting section to receive certain physical data and converts the physical data or part of said signals inputted from said optical network unit functioning section into a serial signal to transmit to said sub-I/F section through said monitoring signal transmission path.

5 more elements

Dependencies are inferred from the claim text.