AT141022B - Circuit arrangement for telephone systems with dialer operation. - Google Patents
Circuit arrangement for telephone systems with dialer operation.Info
- Publication number
- AT141022B AT141022B AT141022DA AT141022B AT 141022 B AT141022 B AT 141022B AT 141022D A AT141022D A AT 141022DA AT 141022 B AT141022 B AT 141022B
- Authority
- AT
- Austria
- Prior art keywords
- circuit arrangement
- telephone systems
- dialer operation
- desc
- relay
- Prior art date
Links
Landscapes
- Interface Circuits In Exchanges (AREA)
Description
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SchaltungsanordnungfürFernsprechanlagenmitWählerbetrieb.
Vorliegende Erfindung bezieht sich auf eine Schaltungsanordnung zur Prüfung von Anschlussleitungen in Fernsprechanlagen mit Wählerbetrieb.
Sie bezweckt, unmittelbar nach Auswahl einer Anschlussstelle die Aussendung von Rufstrom (erster Ruf) vornehmen und gleichzeitig hiebei den Zustand der angerufenen Leitung feststellen zu müssen.
@ Bei Freisein der Anschlissleitnng braucht also nicht mehr das Wirksamwerden von den Zustand der Anschlussleitung feststellenden Schaltmitteln abgewartet zu werden, bevor der erste Ruf herausgeht.
Ferner können besondere Leitungen und Schaltmittel. die den Zustand der Anschlussleitungen kennzeichnen und diese Kennzeichnung bei Auswahl dieser Anschlussleitung weiterleiten, fortfallen.
Erreicht wird dies dadurch, dass nach Auswahl einer gewünschten Anschlussleitung ein unter dem Einfluss der Rufstromquelle stehendes und durch Rufstrom zu betätigendes Relais den Belegungszustand der ausgewählten. Ansehlussleitung feststellt.
Auf der Figur ist ein Ausführungsbeispiel der Erfindung dargestellt. auf welches diese jedoch nicht beschränkt ist. Es ist eine kleine Relaiszentrale zur Figur gelangt, bei der sich Verbindungen
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während die Haltewicklungen dieser Relais den Index A tragen. Die von diesen Wahlrelais betätigten Kontakte tragen die entsprechende Bezeichnung mit vorgesetzten arabischen Ziffern.
Hausverkehr.
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Relais V 1, Kontakt 21 @, Erde. Der Kontakt 22 i stellt einen Haltestromkreis für das Relais T 7 Wicklung 11 her. Dieser verläuft über : Erde. Batterie. Kontakt 22 i, Wicklung II des Relais T 1.
Kontakte 23 t1, 24 an 3, Erde. Das Relais T 7 hält sich während der Dauer des Gespräches über den Kontakt ; 23 t 1. Ferner schaltet es mit den Kontakten 1 t1 und. j t 1 den Teilnehmer auf die Hauslei-
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Circuit arrangement for telephone systems with dialer operation.
The present invention relates to a circuit arrangement for testing connection lines in telephone systems with dialer operation.
Its purpose is to transmit ringing current (first call) immediately after selecting a connection point and at the same time to have to determine the status of the called line.
When the connection line is free, it is no longer necessary to wait for the switching means determining the status of the connection line to take effect before the first call is made.
Furthermore, special lines and switching means. which mark the condition of the connection cables and forward this marking when selecting this connection cable, are omitted.
This is achieved by the fact that after a desired connection line has been selected, a relay which is under the influence of the ringing current source and can be actuated by ringing current indicates the occupancy of the selected. Affiliate management determines.
In the figure, an embodiment of the invention is shown. however, to which this is not limited. A small relay center has reached the figure with connections
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while the holding windings of these relays have the index A. The contacts operated by these selection relays have the appropriate designation with Arabic numerals in front of them.
Home traffic.
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Relay V 1, contact 21 @, earth. The contact 22 i provides a holding circuit for the relay T 7 winding 11. This runs over: Earth. Battery. Contact 22 i, winding II of relay T 1.
Contacts 23 t1, 24 to 3, earth. The relay T 7 remains on the contact for the duration of the conversation; 23 t 1. It also switches with contacts 1 t1 and. j t 1 take the participant to the house
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Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE141022T | 1932-06-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT141022B true AT141022B (en) | 1935-03-11 |
Family
ID=34257338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT141022D AT141022B (en) | 1932-06-03 | 1933-06-01 | Circuit arrangement for telephone systems with dialer operation. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT141022B (en) |
-
1933
- 1933-06-01 AT AT141022D patent/AT141022B/en active
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