DE219571C - - Google Patents
Info
- Publication number
- DE219571C DE219571C DENDAT219571D DE219571DA DE219571C DE 219571 C DE219571 C DE 219571C DE NDAT219571 D DENDAT219571 D DE NDAT219571D DE 219571D A DE219571D A DE 219571DA DE 219571 C DE219571 C DE 219571C
- Authority
- DE
- Germany
- Prior art keywords
- office
- relay
- plug
- monitoring
- armature
- 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
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000005284 excitation Effects 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 description 18
- 230000009699 differential effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M5/00—Manual exchanges
- H04M5/08—Manual exchanges using connecting means other than cords
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE219571C true DE219571C (https=) |
Family
ID=480693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT219571D Active DE219571C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE219571C (https=) |
-
0
- DE DENDAT219571D patent/DE219571C/de active Active
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