Title:
【発明の名称】挿入/分岐ノードの接続
Document Type and Number:
Japanese Patent JP2003510961
Kind Code:
A
Abstract:
An add/drop node of an optical WDN-network which has two fiber paths for light of a plurality of channels propagating in opposite directions comprises two add/drop modules ( 231, 23 r) for each of the channels. All the modules are identically constructed. Each module comprises an add device ( 251, 25 r) for adding light to one of the paths and a drop device ( 27 r, 271 ) for deflecting a portion of light from a second one of the paths. A module comprises a house ( 41 ) enclosing the add device and the drop device. A first fixed connector ( 53, 73 ) is attached to the house for connection in the first path and to a an optical fiber ( 45, 65 ) which extends freely from the house and has a first free connector ( 43, 63 ) at its free end to be attached to the fixed connector of a neighboring add/drop module for continuing the first path through the considered add/drop module to the neighboring module. In the same way a second fixed connector is attached to the house for connection in the second path and to a second optical fiber which extends freely from the house and has a second free connector at its free end to be attached to the fixed second connector of a neighboring add/drop module for continuing the second path through the considered add/drop module to the neighboring module.
Inventors:
Egner, Lars
Venct, johansson
Freden, Redden
Lindgren, Fredrik
Bonnedal, Doug
Furten, Ola
Venct, johansson
Freden, Redden
Lindgren, Fredrik
Bonnedal, Doug
Furten, Ola
Application Number:
JP2001527493A
Publication Date:
March 18, 2003
Filing Date:
September 27, 2000
Export Citation:
Assignee:
Cisco Systems (Sweden) AB
International Classes:
H04B10/27; G02B6/44; H04B10/00; H04B10/275; H04B10/29; H04J14/00; H04J14/02; G02B6/34; (IPC1-7): H04B10/20; H04J14/00; H04J14/02
Domestic Patent References:
| JPH1041920A | 1998-02-13 | |||
| JPH1068828A | 1998-03-10 | |||
| JPH10186142A | 1998-07-14 | |||
| JPH10227919A | 1998-08-25 | |||
| JPH0444439A | 1992-02-14 | |||
| JPH0943450A | 1997-02-14 | |||
| JPH11503584A | 1999-03-26 | |||
| JPH11331224A | 1999-11-30 | |||
| JPH08237215A | 1996-09-13 |
Foreign References:
| EP0905936A2 | 1999-03-31 |
Attorney, Agent or Firm:
Yoshitaka Sonoda (1 outside)