Power feeding submarine telecommunications systems
US4641372A · kind A · utility
7Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1984 |
| Grant date | Feb 3, 1987 |
| Priority date | — |
| Expiry date | Sep 20, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/44
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical undersea telecommunications system has a main cable (1) which branches (BU1) near a landfall to two separate stations. Each branch (71,81) supplies half the current of the main cable (1) for powering the regenerators. In the event of a fault in a branch (e.g. 81) caused by an anchor or fishing gear, the operations branch (71) regenerator (e.g 11) can supply the full current (I) via a zener diode power feed and bypass circuit and high voltage diodes (D1,D2) automatically prevent leakage of current back to the fault.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.