OPTICAL MULTIPLEX NETWORK SYSTEM

Title:

OPTICAL MULTIPLEX NETWORK SYSTEM

Document Type and Number:

Japanese Patent JP2003069497

Kind Code:

A

Abstract:

To provide an optical multiplex network system that can realize redundancy configuration for transmission line on an optical network placed between optical transmitters terminating the optical fiber transmission line and facilitate change of the optical transmitters opposite to each other.

The SONET/SDH optical transmitter being the optical transmitter having optical fiber transmission line interfaces for active and standby systems and performing electro/optic, photo/electric conversion for the signal and terminating the optical fiber transmission lines are configured to have the same transmission wavelength of the standby system transmitter as the transmission wavelength of the active system transmitter. The optical network comprises Add-Drop-Mux wavelength multiplexers not performing the electro/ optic, photo/electric conversion for the signal and wavelength multiplex switches SW and realizes the transmission lines between the SONET/SDH optical transmitters with the redundancy configuration.

Inventors:

NOGUCHI MASAZUMI
KAWASAKI KAZUHIRO
KATAYAMA MASAAKI
TAKAYAMA YUJI
TARUKI RYOSUKE

Application Number:

JP2001258183A

Publication Date:

March 07, 2003

Filing Date:

August 28, 2001

Export Citation:

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Assignee:

HITACHI LTD

International Classes:

H04B10/03; H04B10/032; H04B10/07; H04B10/27; H04B10/291; H04J3/00; H04J14/00; H04J14/02; (IPC1-7): H04B10/02; H04B10/20; H04J3/00; H04J14/00; H04J14/02

Attorney, Agent or Firm:

Ichiro Suzuki (1 person outside)

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