DE112198C - - Google Patents
Info
- Publication number
- DE112198C DE112198C DENDAT112198D DE112198DA DE112198C DE 112198 C DE112198 C DE 112198C DE NDAT112198 D DENDAT112198 D DE NDAT112198D DE 112198D A DE112198D A DE 112198DA DE 112198 C DE112198 C DE 112198C
- Authority
- DE
- Germany
- Prior art keywords
- line
- monitoring
- plug
- telephone
- lamps
- 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 29
- 230000000994 depressogenic effect Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE112198C true DE112198C (https=) |
Family
ID=381875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT112198D Active DE112198C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE112198C (https=) |
-
0
- DE DENDAT112198D patent/DE112198C/de active Active
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