DE222698C - - Google Patents
Info
- Publication number
- DE222698C DE222698C DENDAT222698D DE222698DA DE222698C DE 222698 C DE222698 C DE 222698C DE NDAT222698 D DENDAT222698 D DE NDAT222698D DE 222698D A DE222698D A DE 222698DA DE 222698 C DE222698 C DE 222698C
- Authority
- DE
- Germany
- Prior art keywords
- detector
- line
- contact
- message
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 claims description 6
- 230000003111 delayed Effects 0.000 claims 1
- 230000001960 triggered Effects 0.000 description 6
- 230000011664 signaling Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 3
- 241001507636 Yersinia phage Berlin Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking Effects 0.000 description 1
- 230000001427 coherent Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/04—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE222698C true DE222698C (ja) |
Family
ID=483566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT222698D Active DE222698C (ja) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE222698C (ja) |
-
0
- DE DENDAT222698D patent/DE222698C/de active Active
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