FR2395655A1 - Circuit d'appel et de boucle - Google Patents
Circuit d'appel et de boucleInfo
- Publication number
- FR2395655A1 FR2395655A1 FR7719401A FR7719401A FR2395655A1 FR 2395655 A1 FR2395655 A1 FR 2395655A1 FR 7719401 A FR7719401 A FR 7719401A FR 7719401 A FR7719401 A FR 7719401A FR 2395655 A1 FR2395655 A1 FR 2395655A1
- Authority
- FR
- France
- Prior art keywords
- ringing
- loop
- semiconductor switch
- signal source
- telephone system
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/026—Arrangements for interrupting the ringing current
Abstract
Circuit d'appel et de boucle pour l'envoi d'un courant d'appel vers un poste d'abonné relie à un central de télécommunication. Il comporte un transformateur d'appel dont le primaire est relié en série avec une génératrice d'appel et dont le secondaire est relié d'une part à la ligne d'abonné et d'autre part au circuit d'alimentation à tension continue du poste d'abonné. Application : télécommunications.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7719401A FR2395655A1 (fr) | 1977-06-24 | 1977-06-24 | Circuit d'appel et de boucle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7719401A FR2395655A1 (fr) | 1977-06-24 | 1977-06-24 | Circuit d'appel et de boucle |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2395655A1 true FR2395655A1 (fr) | 1979-01-19 |
FR2395655B1 FR2395655B1 (fr) | 1980-02-15 |
Family
ID=9192531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7719401A Granted FR2395655A1 (fr) | 1977-06-24 | 1977-06-24 | Circuit d'appel et de boucle |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2395655A1 (fr) |
-
1977
- 1977-06-24 FR FR7719401A patent/FR2395655A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2395655B1 (fr) | 1980-02-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |