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Title:
JUNCTION DEVICE AND UNDERSEA CABLE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/261924
Kind Code:
A1
Abstract:
Provided are a junction device and an undersea cable system capable of saving a branch line when a problem involving ground fault occurs in a power feed line on a branch station side. This junction device is inserted into a power feed line and a transmission line connecting first and second trunk stations and a branch station, and includes a switching means for controlling a switch so as to connect the transmission line between the branch station and the first or second trunk station when a current detection means detects that there is no longer current flowing through the power feed line between a junction unit and the branch station and when a first optical signal detection means detects an optical signal in the transmission line connecting the junction unit and the branch station.

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Inventors:
TAKIGAWA YOSHINARI (JP)
Application Number:
PCT/JP2020/022172
Publication Date:
December 30, 2020
Filing Date:
June 04, 2020
Export Citation:
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Assignee:
NEC CORP (JP)
International Classes:
H04B10/03; H04B3/44; H04J14/02
Domestic Patent References:
WO2016147610A12016-09-22
WO2014106575A12014-07-10
WO2014115517A12014-07-31
Foreign References:
US20160149663A12016-05-26
JP2019116239A2019-07-18
Other References:
See also references of EP 3989461A4
Attorney, Agent or Firm:
SHIMOSAKA Naoki (JP)
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