ES181908A1 - IMPROVEMENTS IN AUTOMATIC TELEPHONE CENTRAL SYSTEMS - Google Patents
IMPROVEMENTS IN AUTOMATIC TELEPHONE CENTRAL SYSTEMSInfo
- Publication number
- ES181908A1 ES181908A1 ES0181908A ES181908A ES181908A1 ES 181908 A1 ES181908 A1 ES 181908A1 ES 0181908 A ES0181908 A ES 0181908A ES 181908 A ES181908 A ES 181908A ES 181908 A1 ES181908 A1 ES 181908A1
- Authority
- ES
- Spain
- Prior art keywords
- automatic telephone
- class
- lines
- telephone central
- central systems
- 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.)
- Expired
Links
Abstract
Mejoras en sistemas de centrales telefónicas automáticas, del tipo gobernado a registrador y en las cuales la clase de servicio de las líneas está designada por un potencial característico aplicado a un conductor de prueba, caracterizado por el hecho de que al conectarse las líneas que llaman y/o las líneas llamada con el registrador, un conmutador del registrador, que tiene una posición para cada clase de servicio, comienza a moverse desde una posición a la siguiente, hasta alcanzar la posición correspondiente a la clase de línea conectada.Improvements in automatic telephone exchange systems, of the type governed by recorder and in which the class of service of the lines is designated by a characteristic potential applied to a test conductor, characterized by the fact that when connecting the lines that call and / or the lines called with the register, a switch of the register, having a position for each class of service, begins to move from one position to the next, until reaching the position corresponding to the class of connected line.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR497680 | 1945-03-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES181908A1 true ES181908A1 (en) | 1948-03-01 |
Family
ID=38463610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0181908A Expired ES181908A1 (en) | 1945-03-27 | 1948-01-29 | IMPROVEMENTS IN AUTOMATIC TELEPHONE CENTRAL SYSTEMS |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES181908A1 (en) |
-
1948
- 1948-01-29 ES ES0181908A patent/ES181908A1/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR881535A (en) | Electrical signaling systems | |
FR881538A (en) | Electrical signaling systems | |
CH291949A (en) | Circuit for telephone systems for receiving signals. | |
CH252653A (en) | Circuit arrangement in telecommunications systems. | |
ES181908A1 (en) | IMPROVEMENTS IN AUTOMATIC TELEPHONE CENTRAL SYSTEMS | |
CH339258A (en) | Circuit arrangement for switching systems | |
CH283265A (en) | Automatic telephone switchboard. | |
ES174626A1 (en) | IMPROVEMENTS IN TELEPHONE CENTRAL SYSTEMS. | |
FR950997A (en) | Secret signaling systems | |
CH223854A (en) | Terminal for electrical lines. | |
NL172387B (en) | TELECOMMUNICATIONS SYSTEM. | |
CH295849A (en) | Telecommunications installation. | |
CH266244A (en) | Two-way circuit for telephone systems. | |
CH262449A (en) | Automatic telephone system. | |
CH283934A (en) | Telephone installation. | |
CH308119A (en) | Metal sleeve for an electrical device. | |
DK79410C (en) | Test circuit for remote signaling systems. | |
DK75511C (en) | Signaling connection for telephone systems. | |
CH307140A (en) | Telecommunications installation. | |
CH231156A (en) | Circuit arrangement in telephone systems with connecting lines equipped with several branch points. | |
CH226574A (en) | Circuit arrangement for telephone systems with dialer operation. | |
CH302751A (en) | Circuit arrangement for telephone systems with community connections. | |
CH247354A (en) | Telecommunication system voters. | |
FR883649A (en) | Electrical signaling systems | |
FR885530A (en) | Electrical signaling systems |