DE212644C - - Google Patents
Info
- Publication number
- DE212644C DE212644C DENDAT212644D DE212644DA DE212644C DE 212644 C DE212644 C DE 212644C DE NDAT212644 D DENDAT212644 D DE NDAT212644D DE 212644D A DE212644D A DE 212644DA DE 212644 C DE212644 C DE 212644C
- Authority
- DE
- Germany
- Prior art keywords
- relay
- assistant
- lamp
- current
- subscriber
- 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
- 230000011664 signaling Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 description 5
- 230000005284 excitation Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M5/00—Manual exchanges
- H04M5/04—Arrangements for indicating calls or supervising connections for calling or clearing
- H04M5/06—Arrangements for indicating calls or supervising connections for calling or clearing affording automatic call distribution
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE212644C true DE212644C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=474371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT212644D Active DE212644C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE212644C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
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0
- DE DENDAT212644D patent/DE212644C/de active Active