DE381872C - Circuit arrangement for telephone systems with separate adjustment and speech paths - Google Patents

Description

Circuit arrangement for telephone systems with separate setting and speech channels. The main patent is a circuit arrangement for telephone systems with separate setting and speech paths, in which the speech path closing dialer is forcibly discontinued by power surges from a special current impulse transmitters arranged in the adjustment path are emitted.

The present invention aims to simplify such systems, which is achieved by the fact that a selector used in setting up the adjustment path serves as a surge transmitter for setting the selector closing the speech path. This avoids the use of a special impulse transmitter.

In the drawing, an embodiment of the invention is shown. Fig. 5 to io of the chief patent are attached to the drawing. For the sake of simplicity, only those devices and switching means are shown which have been changed compared to the arrangement according to the main patent. For a better understanding of the drawing, the relays and relay contacts that have not been changed are labeled with the same letters or numbers as in the main patent.

The production of a setting path and the setting of the selector AS on the selected subscriber line and the selector VW on a selector RW closing the speech path takes place in the manner indicated in the main patent. If the selector RW is occupied, the control switch is in 1 - # 'ilistell ## - eg in position 7. In this position, the control switch contact Z' is open. so that the relay P, its Er-Z 'loses its excitation. At the same time, a control switch contact 2oi is opened, sa (let (read relay P., can no longer be excited via its excitation winding. The relay P closes its contact 38 and thereby switches the rotary magnet D "of the caller S on as follows - 'earth contact 38, solenoid Z, D., "Stetierschalterkontakt 2o2, contact: 203 of the non-energized test relay P" breaker, battery, earth the call detector S, the .len the construction of the adjustment path first number impulse receiver IGW 7III the collection point A. on ', the magnet D "is now switched to the rest position.

When the control switch reached position 7 , the relay J " de, # selector RW was reached in the following way: -earth, contact 204, control switch contact 205, switching arm of the first group selector I GW, switching arm of the second group selector I [GW, line gil Switching arm of the line selector LW, line 92, switching arm of the caller AS " relay V, contact 25, switching arm of the selector VIF" line 97, contact 98, relay J ", battery, earth. This circuit is magnetized each time Ies respond D, during the forwarding (les call seeker in the idle position at contact 204 interrupted.

The collection points A are connected in the opposite order to the contact field of the selector RW than in the l #, '- contact field,! Es call seeker S. If, for example, 25-part voters are used, the collection point that is connected to the tenth contact in the contact field of the voter S is , can be reached in voter RW via the fifteenth contact. If the selector S, after -, [a he is set to this collection point, is switched to the rest position, 15 current surges are still sent out, which set the selector RW to the fifteenth contact. This occupies the collection point to which the voter S was interested.

The setting of the selector RW is effected as follows: The relay 1 "has switched on the relay V" via the contact 103, which prepares the circuit for the - # l £ ntriebsrnagnet D "of the selector RX 'at its contact 113. this circuit is closed at each fall of the relay J "on the contact i 1 5, so that the selector RTY continue (is switched. at the same time when Schließeil of the above circuit is the anchor equipped with delayed drop V relay energized, 7.

After setting the selector RW to the Saninielstelle A, the control relay V, -, prevents speech in a known manner. Is in the setting, ve when 11 ZD voter S reaches its rest position, the re! The Schaltarn1 207, contact 208 and resistance 2o9 excited ais P "ahout the control switch contact 2O6 and opens the contact 56 and causes. Thereby a The control switch is switched to the rest position, which enables the adjustment path.

At . The embodiment shown .st assumed that the selectors S and RW have only one direction of movement. It goes without saying that selectors with several directions of movement can also be used. The selector S would then z-, tisseiirlen two series of currents, namely the first when passing over the remaining contacts in the contact group to which it is set, and the second when moving to the rest position (e.g. moving the switching arms downwards).

Claims (1)

PATENT CLAIMS: i. Circuit arrangement for telephone systems with separate adjustment and speech paths according to patent: 271128, characterized in that a selector (S) building up the adjustment path serves as a current impulse transmitter for setting the selector (RTY) closing the speech path. 2. Circuit arrangement according to claim i, characterized in that the call seeker (S) switching on the first number current surge receiver (I GW) of the adjustment path is used as the surge transmitter. 3 Circuit arrangement according to Claim 2, characterized in that the strobe impulses for setting the selector (RIT .--) closing the speech path are produced when the call seeker (S) is moved to the rest position. - [. Circuit arrangement according to Claim 3, characterized in that the collecting points (A) at which the adjustment paths are separated from the speech paths are connected in the contact field of the selector (RTY) closing the speech path in the opposite order to that in the contact field of the number surge receiver (I GW) a selector (S) that switches on the adjustment path.