System for providing power to a central office protector module with alarm indicator and including remote alarm indication
US4862314A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1988 |
| Grant date | Aug 29, 1989 |
| Priority date | — |
| Expiry date | Jun 3, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q1/116
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system for providing power to a central office protector module which has a visual indicator for indicating an alarm whenever one of the two lines protected by the module is shorted to ground by the module. The system includes at least one connector block which has a group of receptacles for receiving the module. The system includes a power supply which converts central office battery to a relatively low amplitude voltage to provide power to the alarm indicator. Current flows only when the module shorts the line to ground. The power supply also includes its own alarm indicator and also has provision to test that indicator and provide a remote alarm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.