DE966991C - Circuit arrangement for connection devices consisting of speech and setting dials - Google Patents

Description

ISSUED SEPTEMBER 26, 1957

S 34066 VIII aj 2i a ³

The invention relates directly to one of voice selectors and a plurality of voice selectors Existing connection device via a multiple line jointly assigned setting selector, in which the common setting selector by means of the rush receiving relay of a voice selector by the first setting rush current the first incoming numbered surge series is occupied, in telecommunications, especially telephone systems.

Arrangements are already known (e.g. from German patents 565 678 and 623 363), where several speech selectors are assigned jointly setting selectors. The setting selector are directly via a line manifold,

d. H. without the interposition of switch-on selectors between speech and setting selectors, with the Speech voters coupled by a common test circuit. These known arrangements have the Disadvantage that the setting selector is occupied at the same time as the speech selector and against others Occupancy is blocked. This has the consequence that a calling subscriber who does not continue dialing Keep the selector out of traffic for an unnecessarily long time. Also those assigned to the setting selector other speech selectors are withdrawn from traffic until the setting selector is in the rest position has returned. In addition, some of the voice dialers, some of the setting dials, require a proportionate large expenditure on switching means.

709 691/5

For this reason, the arrangement of arrangements on which the invention is based is based type mentioned above. It is aimed at speech selectors with shared setting selectors, in which the common setting selector is only activated by the first current surge of the first one Number burst series is occupied. This ensures that the setting selector and speech selector not on the part of the calling subscriber

ίο be withdrawn from traffic for an unnecessarily long time can.

It is already known per se (USA.-Patent ι 664 943), a common several feed bridges Register only with the first power surge of the

to occupy the first numbered current impulse series and also the occupancy circuit of the feed bridge of the To separate the occupancy circuit of the register. In this way, the calling subscriber can also who does not continue to dial, the register does not

Withdraw from traffic for an unnecessarily long time. The known arrangement only achieves this through Interconnection of switch-on selectors between the feed bridges and the common ones Register. The switch-on selector must always be on

preset a free register. By interposing switch-on selectors, the The advantage of centralizing the registers or setting selectors compared to direct connection the setting selector only via a cable

often lost to the voice dialer again because of the setting of the switch-on dialer in the case of a pending connection, a certain amount of time can elapse before a connection is free Register is found. Besides, that means

Controlling the switch-on selector an undesirable complication of the circuit with an additional Expenditure on switching means. After all, due to their frequent use, the switch-on selectors are one subject to rapid wear and tear.

For this reason, the invention seeks to have arrangements with a switch-on dialer on the voice dialer Avoid attachable setting selectors. It is made possible by setting selectors that only have one Line multiple directly without intermediate selector

are coupled to the voice dialers. In order to achieve the advantages of the occupancy of the common setting selector by the first impulse of the first impulse series and on the other hand the effort

not only to hold the switching means at the same height, but to push them down even further, the invention proposes the occupancy and test circles of the speech and setting selector in itself separate in a known manner and the same test

relay of the speech selector for the test and occupancy circuit for the setting selector as well as for the the group selection of the speech selector controlling the marking test circuit between setting selector and Voice selector as well as for the single line test

use the voice selector's circle.

The figure in which only the circuit details essential for understanding the concept of the invention are shown shows in the form of a group selector with an individual motor drive an embodiment of the invention.

The group selector (voice selector GW) is driven motor formed by one of the two by 90 ⁰ staggered motor magnets M 1 and M 2, and an armature, not shown, by the magnets M τ and M 2 m by dependent from the anchor position of actuation of the motor contacts 1 and B2 are switched on alternately. The switch arms of the selector are labeled wl to w IV. The contacts 1 wo to 7 where are selector contacts which only assume their position shown in the figure in the rest position of the selector and which are actuated as soon as the voter leaves this position.

The setting selector AEH ^ contains a switching mechanism D whose switching arm ώί identifies the contact groups on the contact bank swept over by the switching arm w II of the group selector during group selection. With 33do and 34 do contacts of the switching mechanism are referred to, which assume their position shown in the figure only in the rest position of the switching mechanism and which are actuated as soon as • the switching mechanism leaves it. The contacts 35 d and 36 d are actuated as often as the switching mechanism magnet D is excited.

The group selector (speech selector GW) is occupied by switching on the occupancy relay C via line 3. Relay C brings its contacts 8 c to 12 c into the working position. Contact 8 c closes the occupancy and trip circuit for the voice selector GW. The changeover contact 9 c prepares with its working side the test circuit for the assignment of the setting selector BW . Both circles are independent of each other. All speech dialers connected to the same setting dial can be assigned at the same time without influencing each other.

The setting current impulses excite the winding I of the current impulse receiving relay A coming via the speech core A. Relay A closes the test circuit for the assignment of the setting selector EW when it is triggered for the first time with contact 14 a. It is assumed that this is not already occupied. Then contact 34 do is closed and there is free potential at the branch point of the test leads in the setting selector. In the test circuit, therefore, the fast switching test relay P1 responds and, by short-circuiting its high-resistance winding II with contact 15 ^ 1, immediately blocks the selector against further assignments. With its contact 16 p χ the relay closes a brake circuit for the selector motor, which is switched on via contact i "jn of relay y4, but is not set in motion as long as both motor magnets Mx and M 2 are energized at the same time, so that the torques exerted by them on the motor armature cancel each other out.

After short-circuiting (through contact 15 ^ 1) of the high-resistance winding of the relay P 1 in the test circuit for the assignment of the setting selector, the control relay 17 located in this circuit responds. Of the

The winding resistance of the relay U corresponds to that of the low-resistance winding I of the relay Pi. Relay U takes over the assignment of the setting selector by bringing its contact i8u into the working position. This contact at the same time short-circuits the relay P ι so that this relay returns its contacts to the rest position. Contact 19 μ closes the circuit for setting the switching mechanism D, which is now set according to the current surges transmitted with contact 20 α of the surge receiving relay A. In this circuit, the relay V responds first, which switches the circuit to low resistance by shorting its high-resistance winding I at contact 21 ν , whereupon the switching mechanism magnet D is fully excited and brings the switching arm d I into the switching position ι, in which the latching contact I. the contact bank wanted by the selector switch arm is marked the first contact group of the group selector according to the selection of the number »1«. Further setting current surges cause the switching arm d I to move into a corresponding switching position. Relay V now remains energized via its winding II by being switched on directly via the contacts 22 ν and 35 d or during the opening times of the contact 35 d by the charging current of the capacitor Co 1. Its contact 23 1 maintains the assignment of the setting selector after the contact 34 do has opened. Contact 24 ν switches the identification potential to the switch arm rfI. Contact 25 ν takes over the activation of the selector motor via the contact 26 w of the relay U, which is continuously closed during group selection, in contrast to contact 17 a.

The selector motor is released as soon as the relay U causes the relay P1 to drop out and this opens its contact 16 pi , so that now controlled via the motor contacts m 1 and W2, only one of the drive magnets M 1 and M 2 is switched on at the same time . The speech selector starts moving immediately and follows the group identification given by the setting selector. Relay U has switched the relay P 1 into the identification circuit with its contact iju. As soon as the speech selector reaches the contact group identified by the selector, be it during the group setting or after its termination, the relay P ι responds and sets the selector - in the first case only temporarily - by closing its contact 16 ρ ι still.

Assume that the number "2" has been chosen. When the selection is complete, the switch arm d \ of the selector is in switch position 2. In this position, if the switch arm wants to pass over the contact bank of the group selector, a circuit running over the line 6 and the latching contact II located in front of the second contact group is closed, in which the relay P 1 responds and stops the group selector. In the setting selector, the relay V drops out after the series of current impulses that determine the line group have ended. Contact 25 ν switches off the selector motor. Contact 23 ν interrupts the occupancy circuit. Contact 21 ν closes the circuit prepared with contact 33 do between the switching mechanism magnet D and the common relay interrupter RU, under whose influence the switching mechanism now runs home. Contact 36 ei secures the last switching step when returning to the basic position, in which contact 33 do opens and contact 34 do closes again, so that the selector can be occupied again.

After relay V in the setting selector, relay U in the group selector has dropped out. Contact 18 ti closes a circuit prepared by contact 6 where, in which winding III of relay A is excited by the charging current of capacitor Co 2. Relay A binds itself via its winding I with its contact 29 a in a prepared by contact 3 where and via contacts 28 u and 30 p2. trending circuit. It should nachgetragen here that remained when turned on through the contact 28 and further to the call wire 1 during the group selection, the winding I of the relays A, after opening of the contact 2, while its winding was shut II through contact 31 and from the opening vein. 2 Contact 17 a switches the selector motor on again. Since the relay Pi, which was switched from the group identification circuit to the individual line test circuit by the contact 27 u , is not energized at this moment and has opened its contact 16 p 1, the group selector switched on by the contact 17 a immediately starts to move to in Free choice to search for a free individual line within the designated line group. When a free individual line is found, the test relay Pi responds in a circuit running, for example, via line 7, and sets the group selector by closing its contact

16 p ι immediately shut down and blocks the line found by short-circuiting the high-resistance winding II of the relay Pi via contact 15 pi. The additional low-resistance auxiliary test relay P 2 in the test circuit, which responds after the contact 15 p ι closes, is not involved in the test process, but is only intended to take over part of the switching work of the test relay P ι. Relay P 2 switches off the jjo relay A with its contact 30 ^ 2, because in turn with its contact

17 a switches off the selector motor. Contact 31 / »2 switches the magnet Ad into the occupancy circuit of the group selector. The magnet Ad switches the incoming speech wires 1 and 2 through to the outgoing speech wires 4 and 5 of the individual line by pressing the selector switch arms w I and wll against the corresponding bank contacts.

If the group selector does not find a free individual line, its switching arms w III and w IV finally reach the bank contacts designated in the figure with 11 at the end of the set contact group. A circuit is then closed which runs via the contacts 20 a, igu, nc, the switching arm and, for example, the line 8, in which the relays P 1 and P 2 continue for so long

respond until the relay, switched off at contact 30 ^ 2, drops out. The tone-frequency busy signal BZ is applied to winding III of relay A via contacts 6wo and 33 p 2. It is transmitted inductively to the calling subscriber via windings I and II of this relay, of which the former via contacts 28 «, 20 p 2, 3 wo and 29 a to voice vein 1 and the latter via contacts 31 u, 32 p 2. and J where is connected to voice vein 2.

In line 8, a counter ZII can be switched, which is incremented during the release time of relay A and registers the spinning occupied cases for line group II. The same measure can, as indicated in the figure by the counters ZI and ZX , be taken for the other line groups.

If the setting selector is already occupied when the speech selector picks up the first setting current impulse, relay P1 and subsequently relay U cannot respond. The selector motor switched on at contact 17 a is not stopped via contact 16/11. The voter therefore starts moving. The relays P1 and P 2 speak in a circuit running via the contacts 20σ, igu, lic, the switching arm w III, the bank contacts e connected by the line 9 and upstream of the first contact group, the switching arm w IV and the contacts 27 ″, gc until loading

end of the first set current surge temporarily. Contact 16 pi stops the voter until contact 17 a switches off the voter motor again. The impulse receiving relay A does not accept any further setting current impulses, since its winding I is separated from the speech core 1 by the contacts 2 wo (in the working position) and 28 ″ (in the rest position). After the relay P 2 drops out, the busy signal BZ is transmitted to the calling subscriber, as it is now the same switching state

occurred, which was shown above for the spinning occupied case. A counter ZE can be switched into line 9, which is incremented during the release time of the relay ^ and registers the number of cases in which the setting

Ί5 dialer is found busy.

The triggering of the group selector is initiated by switching off the occupancy relay C. At the same time, the magnet Ad comes to waste and removes the connection of the speech wires. Via the contacts 9 c and 2 where the relay A responds again and switches on the selector motor with its contact 17 a. The voter turns home and is when the basic position is reached by simultaneous excitation of the drive magnets M 1 and M 2

stopped via contacts 10 c and 4 where. Relay A drops out again at contact 2 where it is switched off. The closing contacts 1 wo and 20 α prepare a new assignment.

Claims (4)

PATENT CLAIMS: i. From voice dialers and one of several voice dialers directly via a multiple line jointly assigned setting selector existing connection device in which the common setting selector by means of the impulse receiving relay of the speech selector the first set current impulse of the first incoming numbered current impulse series is assigned, in telecommunications, in particular telephone systems, characterized in that the occupancy and test circuits of the speech selector and setting selector are separated in a manner known per se and the same test relay (Pi) of the voice selector for both the test and occupancy circuit of the voice dialer to the setting selector as also for the. Group selection of the speech selector controlling marking test circle between Setting selector and speech selector as well as for the single line test circuit of the speech selector is used. 2. Connecting device according to claim 1, characterized in that a control relay (U) of the Sprecliwählers, which is connected to the occupancy circuit between the speech dialer and setting selector, which is used to switch from group to individual line selection, maintains the occupancy of the selector regardless of the interruption of the original occupancy circuit and at the same time the test relay (P 1) switches one after the other first into the test circuit characterizing the selected line group and then into the test circuit for the individual line selection. 3. Connecting device according to claim 2, characterized in that the control relay (? 7) is dependent on a relay (V) of the setting selector which characterizes the end of the line group-determining current impulse series 4. Connecting device according to claim 1, characterized in that when the is occupied Setting selector the non-responding test relay (P 1) of the speech selector to run it releases, but the voter means on a step before the first contact group one running over this selector position, closed by the surge receiving relay Test circuit is shut down with busy signaling to the calling subscriber. Considered publications: German Patent Nos. 565 678, 623 363; U.S. Patent No. 1,664,943. 1 sheet of drawings © 509554/65 9.55 (7096910 9.57)