Intrusion alarm test system
US4024519A · kind A · utility
6Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1975 |
| Grant date | May 17, 1977 |
| Priority date | — |
| Expiry date | Oct 6, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B29/14
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
For use in a multiple zone intrusion alarm system having a central control unit and a plurality of remote transceivers or other sensors, apparatus for testing the operability of the transceivers wherein the control unit includes means for deactivating all of the transceivers, and each transceiver includes means by which that transceiver can be reactivated by connection of a test circuit thereto. The test circuit is operative to measure background noise levels and alarm levels for the associated area being tested.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.