BE406832A - - Google Patents
Info
- Publication number
- BE406832A BE406832A BE406832DA BE406832A BE 406832 A BE406832 A BE 406832A BE 406832D A BE406832D A BE 406832DA BE 406832 A BE406832 A BE 406832A
- Authority
- BE
- Belgium
- Prior art keywords
- line
- relay
- current
- circuit
- earth
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B23/00—Alarms responsive to unspecified undesired or abnormal conditions
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/02—Monitoring continuously signalling or alarm systems
- G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Alarm Systems (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE406832A true BE406832A (cs) |
Family
ID=71752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE406832D BE406832A (cs) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE406832A (cs) |
-
0
- BE BE406832D patent/BE406832A/fr unknown
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