发明名称 |
Power feeding submarine telecommunications systems |
摘要 |
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.
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申请公布号 |
US4641372(A) |
申请公布日期 |
1987.02.03 |
申请号 |
US19840652467 |
申请日期 |
1984.09.20 |
申请人 |
STC PLC |
发明人 |
KELLY, PATRICK S.;OSWALD, THOMAS;JEAL, ALAN J.;HILL, STEPHEN E.;MURPHY, ROBERT |
分类号 |
H04B3/00;H04B3/44;(IPC1-7):H04B9/00 |
主分类号 |
H04B3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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