DE2523476A1 - - Google Patents
Info
- Publication number
- DE2523476A1 DE2523476A1 DE19752523476 DE2523476A DE2523476A1 DE 2523476 A1 DE2523476 A1 DE 2523476A1 DE 19752523476 DE19752523476 DE 19752523476 DE 2523476 A DE2523476 A DE 2523476A DE 2523476 A1 DE2523476 A1 DE 2523476A1
- Authority
- DE
- Germany
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/32—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Alarm Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752523476 DE2523476C2 (de) | 1975-05-27 | 1975-05-27 | Verfahren für eine Fernmelde-, insbesondere Fernsprechanlage, zur Überwachung von Verbindungswegen und Umschaltung auf Notbetrieb |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752523476 DE2523476C2 (de) | 1975-05-27 | 1975-05-27 | Verfahren für eine Fernmelde-, insbesondere Fernsprechanlage, zur Überwachung von Verbindungswegen und Umschaltung auf Notbetrieb |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2523476A1 true DE2523476A1 (de) | 1976-07-08 |
DE2523476B1 DE2523476B1 (de) | 1976-07-08 |
DE2523476C2 DE2523476C2 (de) | 1978-04-20 |
Family
ID=5947551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19752523476 Expired DE2523476C2 (de) | 1975-05-27 | 1975-05-27 | Verfahren für eine Fernmelde-, insbesondere Fernsprechanlage, zur Überwachung von Verbindungswegen und Umschaltung auf Notbetrieb |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2523476C2 (de) |
-
1975
- 1975-05-27 DE DE19752523476 patent/DE2523476C2/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2523476C2 (de) | 1978-04-20 |
DE2523476B1 (de) | 1976-07-08 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8339 | Ceased/non-payment of the annual fee |