BE856239A - SUBSCRIBER LINE EQUIPMENT CIRCUIT - Google Patents
SUBSCRIBER LINE EQUIPMENT CIRCUITInfo
- Publication number
- BE856239A BE856239A BE178878A BE178878A BE856239A BE 856239 A BE856239 A BE 856239A BE 178878 A BE178878 A BE 178878A BE 178878 A BE178878 A BE 178878A BE 856239 A BE856239 A BE 856239A
- Authority
- BE
- Belgium
- Prior art keywords
- subscriber line
- line equipment
- equipment circuit
- circuit
- subscriber
- Prior art date
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
- H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7620093A FR2357131A1 (en) | 1976-07-01 | 1976-07-01 | Detection of telephone circuit loop state - employing Hall effect cell in magnetic circuit of detector coils |
Publications (1)
Publication Number | Publication Date |
---|---|
BE856239A true BE856239A (en) | 1977-10-17 |
Family
ID=9175113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE178878A BE856239A (en) | 1976-07-01 | 1977-06-29 | SUBSCRIBER LINE EQUIPMENT CIRCUIT |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE856239A (en) |
FR (1) | FR2357131A1 (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1029422B (en) * | 1955-09-30 | 1958-05-08 | Siemens Ag | Relayless subscriber circuit for telecommunication, especially telephone systems |
DE1158584B (en) * | 1962-08-16 | 1963-12-05 | Telefunken Patent | Circuit arrangement for checking the call and occupancy status of subscriber lines in telecommunication systems, in particular telephone switching systems, with the aid of Hall generators |
-
1976
- 1976-07-01 FR FR7620093A patent/FR2357131A1/en active Granted
-
1977
- 1977-06-29 BE BE178878A patent/BE856239A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR2357131B1 (en) | 1978-12-15 |
FR2357131A1 (en) | 1978-01-27 |
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