DE661082C - Circuit arrangement for telephone systems with subscriber counters to be actuated during the conversation in the exchange - Google Patents

Description

Circuit arrangement for telephone systems with during the call to be operated subscriber counters in the exchange The invention relates on telephone systems in which subscriber counters are arranged in the exchange are operated during a call, and in particular on such systems, at which in relatively short time intervals, depending on the direction of traffic and thus, depending on the value of the connection, the Counter by a counter incremental device, for example a surge transmitter, Are influenced .. If in such systems subscriber stations with charge indicators are to be equipped, difficulties arise because it is not possible to operate this charge indicator at the same time as the meters; because the very frequent application of one actuating the fee display at the subscriber stations Potential during the conversation means a nuisance for the speaking participants.

The invention now aims to display fee indicators in such cases as well at the participant points in operationally safe, annoyance of the speaking participants to the greatest possible extent to allow. This is achieved by the fact that Switching devices are provided in the exchange, «-which after entry the charging of a connection influencing the billing displays at the subscriber stations at a different time and / or through power surges, the number of which is less than the number of the subscriber counter in the exchange actuating current surges.

According to the invention, the charge indicator of a connected subscriber station after the end of the conversation are advanced, then by the same or a lower number of power surges than that actuated during connection Counter in the exchange. Actuation by a reduced number of electrical surges allows faster release of the connection devices in the exchange, which must be kept set during the counting current surges. She can be practical but only apply if it does not matter that the fee displays displayed value completely exactly with the value displayed at the subscriber stations is, matches; because there for every 1o, 2o or more switching steps of the counter Exchange of the fee indicator is adjusted only by one step depending on when the criterion for updating the fee display is given will, at the beginning or at the end of a group of to, 2o or more counting current surges the one displayed on the charge indicator. Value may be higher or lower than the one on that date Value displayed to the participant counters.

If the charge indicator is incremented by a number from Power surges: occurs, which is less than the number of the counters in the exchange influencing power surges, the charge indicator can also be displayed during the connection away; to be switched off. The temporary application of the potential to the voice line is then noticeable for the speaking participants and is used with the fee indicator equipped participants as a control symbol for the progression of the fee display and the amount of the fee in question.

According to a further feature of the invention, one and the same counter forwarding device can both the subscriber counters in the exchange and the charge indicators press at the subscriber stations. Of course, two can also be used Counter incremental devices are provided. one for the subscriber counter and a second for the fee scoreboard.

In the drawings are some embodiments of the invention shown. All circuit details not absolutely necessary for an understanding of the invention have been omitted for the sake of clarity.

It has been assumed that reporting the called party is the point in time at which a connection becomes subject to charges. Of course the connection may be charged at any other point in time, for example already when the call incentive takes effect, when a Connection setup via the preselection level or preselection levels or when broadcasting the first @ .Tuminern surge series by the calling subscriber.

If, in the embodiment according to FIG t, winding 1I of T, 3, .4, relay C, 5 k, -i-. At 6 t and 7 t the voice wires are connected. At 8 t, the subscriber counter GZ is connected to the special switching arm g. Relays A and B are energized in the supply circuit. The tripping delay relay V1 is excited via ioa, holds relay C via ii v1 regardless of the contact 5 k that opens in any way with the first number current surge, prepares the current pulse output by the counter progression device for 12v1 and 13v1, tüng Zf before and at i4vi the Circuit for '' oil drive magnets D, -f the meter fort-.s-cia, lteinrichtung. The contact i 5 v1 iin the current circuit of the tripping agent Da of the counter incremental device is opened.

By the current impulses to be sent out by the calling subscriber station, which characterize the traffic direction and thus the value of the connection, the follower 17L is set, which closes the contact 16 kiizl in the first switching step and opens the contact 17 kaial. It is assumed that the connection leads into the second traffic zone, so that the switching arms 22 and 23 of 1.IL are set to the contacts 2-11 and 25: When the called subscriber arrives, in a manner not shown by applying - The relay Zi- energizes to the lower voice wire, which closes the contacts i8zr, igzi- and 2o1; -.

As is assumed in the present exemplary embodiment, the counter incrementing device Zf consists of a rotary selector with a larger number of contacts. Two switching arms zfi and zfii, 1f2 and 1f14, etc. are provided for each traffic direction and thus for each value present in the system. The switching arms zfi and 42 and the contact banks marked by them are used to actuate the subscriber counters in the exchange, while the switching arms zf 1i and zf, etc. are provided for controlling charge displays at the subscriber stations. It is also assumed that for every ten current impulses to be sent to the subscriber meter, a current impulse is to be given on the charge indicator, such that when the i the speech connection can be influenced.

When the fee is charged, as assumed when the desired participant reports, the circuit of the Dzf magnet is closed at 2ozr: -, 2ozr. i.Ivi, 16kisal, Dfz, breaker 21, - [-. All switching arms of the counting incremental device (count current impulse transmitter) are incremented at time intervals determined by the interrupter 21. If the switching arms of the counting current impulse transmitter reach the i. Contact, the subscriber counter of the exchange and the charge indicator are operated at the same time. The circuit for the subscriber counter is as follows: 26, 2 # f2, 24, 22, iszr, 12v1, g, GZ, 8t, 1, -. To influence the charge indicator GA, the relay Z_ is excited by connecting + to the blocking and 1-Ialteaders via a low resistance VR .: -; -, 28 v2-, 1'R, .27. zf 1_, 25, 2, i, 19 z2-, i 3 v ,,: 4, 3, relay Z, 2t, i, - lying parallel to TII. The relay Z closes its contacts 29z, 30z and 31 w. Via 29 z and 30 z, alternating current is applied simultaneously to both speech wires, thereby actuating the charge indicator GA at the subscriber station. Via contact 32-; a control counter KZ is energized.

Since the switch arm -i ,. until the next excitation (los', \ ilagneten Dzf remains on contact 27 through the interrupter 21, an excitation of the relay Z that interrupts the speech wires at the contacts 322 and 33z for a longer period of time is prevented by the delayed response relay UR The excitation circuit of relay Z at contact 28v2-interrupted and at 68v2- a resistor 69z seeking the drop in Z is applied. VR stays aroused over 69.

Instead of the speech wires when the relay is energized? to interrupt, the arrangement can of course also be made in such a way that the @@ alternating current is only applied to both speech lines simultaneously.

By connecting the alternating current to the speech wires, be it now with or without their interruption, there is a certain annoyance of the speaking participant. 1) this, however, is more irreversible only at longer intervals takes place, is assumed for every ten power surges on the subscriber counter GZ me once, this annoyance can be accepted, especially the one with the fee indicator Equipped participants can see how often his charge indicator is operated will. So it is in hand, by shortening the conversation time, the costs to reduce the bond.

Since the connection to the second traffic zone is established, -1- at every second contact in the contact bank of the counting current pulse transmitter, which is marked by the switching armzf connected and on every 2o. Contact in the contact bank of the switch arm -f, 2.

After termination of the connection and hanging up the receiver at subscriber T, 1a, the relays A and B drop out and switch off the relay I '. At i2v and 13v1 the wires for the counting current impulse transmission are opened, at 14 v the drive magnet Dzf is switched off. At i5v, the trigger magnet of the counting current impulse transmitter is switched on: -, 15v1, 171z, 1u1, Da, 34kzf, +. The counting current impulse transmitter Zf is returned to the rest position.

The follower.; IIL and the preselector THW are also triggered in some known manner. In the further exemplary embodiments (FIGS. 2 to 4) the switching elements which correspond to those in FIG. I have the reference symbols used in this.

In the embodiment according to FIG. 2, the charge indicator is influenced at the end of the connection. For this purpose, the counting current impulse transmitter is designed in such a way that it is moved step by step in one direction by a drive magnet Dzf and is gradually returned to the rest position by a second drive magnet Dzf2. It is also a relay t '. provided, «-which maintains the connection path with the calling station as long as the meter progression device Zf is in the working position. The relay 1 'is activated via a contact 3q which closes during the first switching step of the electronic counting transmitter. bz f switched on. It holds the relay C, which controls the final triggering of the connection path, and also the isolating relay T of the subscriber line via the contact 35 v, and also energizes the relay Zr in a manner not shown, independently of the downstream connection devices. Since during the progression of the counter current impulse transmitter in the course of the connection there should be no current impulse to the charge indicator, the connection between the blocking and holding wire 4. and the switching arm 23 of the follower at contact 362 'is not possible during the conversation (iclieii. After Sclau13 the conversation and relays .3, ß and h drop out, horitakte 36v, and 37V1 are closed. Via contact 32-v, the magnet Dz f, which returns the counter current sender to the rest position, is excited: -, 20z, 1 #, 16 hm1 , 37v ,, Dz f2, interrupter 38, - @ -. The interrupter 38 gives current impulses in quicker succession than the interrupter 21, which advances the counter current impulse transmitter in precisely defined time units corresponding to the tariff long on a contact than is necessary to ensure proper actuation of the charge indicator by the relay applying the actuating current is.

Anyone), if the switched on by the -'1 -IitläuferlWL, the Actuation of the charge indicator serving switching arm on a grounded contact comes, is applied to wire 4 via 23, i9zr, 36v, + and thus the relay Z energized on the subscriber line, which in the manner described in Fig. I transmits the metering current surges to the charge indicator.

In this embodiment, the relay VR shown in Fig. I can be omitted. A low-level resistance would then take its place.

Should the charge indicator be actuated by the same number of counting current surges like the counter in the exchange, the switching arms zf11, zf12 etc. (Feg. i) not required. When the counter current impulse transmitter runs back, the relay Z via the dis influencing the subscriber counter during the forward movement in the exchange bringing about contacts, z. B. the stroked by zf2 Contacts, excited. In such an embodiment, the relay hl is the this contact bank wiping arm over the switch arms? 2 of the follower and the Contact 39 v1, as if dotted, to the vein. created. The branch of 4 over the Contacts 36v1, igzr, etc. then also continue to fill in.

In the arrangement according to FIG. 3, a special relay GAr which characterizes the connection of a subscriber station with a charge indicator is provided. This is excited after the contact 4o c is closed. It closes its contacts 4.i even, 42gar and 43 even. By providing the relay GAr it is achieved that both the maintenance of the connection path to the calling subscriber through the relay TV = and the switching through of the branch from the wire 4 which enables the actuation of the relay Z on the subscriber line takes place only when a subscriber station with charge indicator has connected to the subscribers with and without charge indicators common connection device.

Also -in your embodiment of Fig. I, a relay GAr be provided. His excitement would then switch the branch through depend on the wire -t to the arm 23 of the follower at contact 44.

In the embodiment according to FIG. 4, two counting current impulse transmitters Zf I and Zf II are provided, one for operating the subscriber counters and the second for operating the charge indicators. The subscriber counters are influenced in the manner already described. With the first counting current impulse, the relay G corresponding to the traffic direction, i.e. the skill of the connection, is excited in the counting circuit, which runs over the switching arms of the follower and the counting current impulse transmitter. Since it is assumed again that the connection runs in the second traffic direction, according to which the switch arm 22 from! UL is on contact 24, the relay G2 is excited via its winding I at the first counting current surge. It switches itself on via the head contact 5o k .-, f I, its contact 5 ig = and its winding 1I in a holding circuit. Assume five different traffic zones. For connections to zone i, a charge indicator should be actuated for each time unit by one, for connections to zone 2 by two, etc. current impulses. Accordingly, the 1st, 6th, 11th etc. contact in the contact bank of the switching arm zf IIl of the counting current impulse transmitter Zf 1I is connected through the relay G1 (first zone), the 2nd, 7th etc. contact in through contacts of the relay G2 the same contact bank. In order to ensure that two current impulses are emitted for each time unit in the case of connections in the zone -a, the relay G. =, when it was switched on, via the contact 52 g, also the relay G the zone: 2 contacts 53g_ and 54g1 closed, so (1 <i13 when the counting impulse transmitter Zf II is running, current surges when the i., 2., 6., 7., 11., 12. etc. contact to excite the relay Z be sent out at the subscriber station.

If a connection was established in zone 3, a would not illustrated, this traffic direction characterizing relay G3 via the contact 55 g, the relay G., and this via the contact 52 g = energize the relay G1. It the contact 56g3 would then also be closed, thus current surges when being driven over of contacts i, 2. 3, 6,;, 8, etc. of the contact bank given by the switching arenas zf IIl will. .

In the branch from wire .4 and in the circuit of relay b '., Like @ lor contacts 42 or 41 can be switched on or not. After termination of a connection in a system with the counter incremental device according to FIG. 4, the de-energization of the relay V1 opens the contacts 12v1, i4v1 and closes the contacts 36 v1 and 37 v1. The - Impulse transmitter Zf II starts: -, 37v1, 2ozr, head contact 571zzfI, Dzf II, 59w, 38, + .. Each time the switching arm zf IIl hits a contact on which one of the contacts 54g1, 53 92 etc. + is applied, the relay Z is energized and sends a current impulse to the charge indicator. If the counter indexing device Zf II reaches the same position as the counter indexing device Zf I, the relay is energized via the connected special contact banks marked by the switching arms zf I3 and zf II = whose circuit at the head contact 58hzf II is activated in the first step of the counting current impulse transmitter Z / II is prepared. It interrupts the further transmission of current surges to relay Z by opening the circuit for the drive magnet Dz f II at contact 59 w and the branch from wire 4. at contact 6o «o. At 6 i closed the relay h '.> Is switched off, which drops out and triggers the connection path with the calling station. Via 62w, head contact 63 kzf, the tripping magnet Da, of the counting current impulse transmitter Z f I and via 64. kz f II the tripping magnet Da. of the counting current impulse transmitter Zf II switched on. Both counter incremental devices are returned to the rest position. When they reach this, all head contacts have returned to their rest position. The excited traffic direction marking relays G ,, G2 etc. have fallen off, as have the release magnets.

If in the embodiment of Fig. Q. also the connection of one Subscriber with charge indicator identifying relays GAr are provided, so can how is indicated by dotted lines, the activation of the drive magnet Dzf, also from the Be dependent on excitation of this relay. The counter incremental device Zf II would then do not start at all when a subscriber is connected without a charge indicator. The triggering of the counting current impulse transmitter Zf, which is only activated in such connections I would then take place immediately when relay Z 'drops, regardless of relay W.

The counting current impulse transmitter Zf II can now do the same for each connection or send out a lower number of current impulses than the counting current impulse transmitter Zf I. In the latter case, of course, a switching mechanism can be used for the counting current impulse transmitter Zf II be used with a smaller number of switching positions than for the counter current impulse transmitter Zf I.

By wiring the two of the switching arms zf 13 and zf II2 painted contact banks and corresponding connection of the potential Continuation of the charge indicator can be sent to the contact bank marked by zf III also always be adapted to the currently valid tariff. Even with the embodiment According to FIG. i, by changing the potential connections to that of the switching arms of the counting current impulse transmitter Z f painted contact banks of the counting current impulse transmitter each applicable tariff can be adjusted. Instead of shorter or longer periods of time to send out a counting current surge to the subscriber counter GZ, as shown in FIG. in the case of connections to traffic zone i after every third switching step and for connections to traffic zone a after every second switching step the current impulse transmitter, which is switched on at certain time intervals, emits a current impulse is, the arrangement can for example also be made such that at the beginning every time unit, which is used for all connections regardless of the traffic zone always has one and the same length, depending on the traffic zone, a different one Number of counting current surges sent out one after the other «earth.

Claims (1)

PATENT CLAIMS: i. Circuit arrangement for telephone systems with subscriber counters to be operated during the call in the exchange, characterized in that switching devices (zfii, zf, 2, Dzf2 etc.) are provided in the exchange which, after a connection becomes subject to charges, influence the charge indicators arranged at subscriber stations (GA) at a different time (after the end of the call) and / or through power surges, the number of which is less than the number of the subscriber counter (GZ) actuating power surges in the exchange. a. Circuit arrangement according to Claim i, characterized in that the same counter incremental device (Z f) influences counters (GZ) in the switching center during the connection and charge displays (GA) at the subscriber stations after the connection is terminated. 3. Circuit arrangement according to claim i, characterized in that the counter incremental device (Zf), which influences the counter in the exchange, controls charge indicators at the subscriber stations by current surges, the number of which is less than the number of current surges required for the same connection to the counter be sent out in the exchange. . Circuit arrangement according to Claim a, characterized in that the counters in the exchange are influenced by the incrementation of the counter incremental device in one direction of movement and the charge indicators at the subscriber stations are influenced during the return movement of the counter incremental device to the rest position. 5. Circuit arrangement according to claim i, characterized in that a counter incremental device (Zf I) controls the counters in the exchange and a second counter incremental device (Zf II) controls the meter. 6. Circuit arrangement according to claim 5, characterized in that the number of the second counter incremental device (Z f II) to be emitted current surges is determined by the first counter incremental device (Zf I). . Circuit arrangement according to Claim 5, characterized in that the second counter incremental device (Zf II) sends out counting current surges to the charge indicator, the number of which is equal to the current surges sent by the first counter incremental device (Zf I) to the meter in the exchange. B. Circuit arrangement according to claim 5, characterized in that the second counter incremental device (Zf II) sends out counting current surges to the charge indicator, the number of which is lower than the counting current surges sent by the first counter incremental device (Z f I) to the counter in the exchange. G. Circuit arrangement according to Claim 5, characterized in that the second meter incremental device sends out current impulses to the charge indicator after the connection has been terminated. 1o. Circuit arrangement according to claim a or g, characterized in that switching means (h.) Under the influence of the meter incrementing device maintain the connection path between the calling subscriber station (Tn) and the meter incrementing device sending the current impulses to the charge indicator during the current impulse. 11. Circuit arrangement according to claim 5, characterized in that the relays (GI, G.) characterizing the traffic direction determine the number of current surges to be sent out for each time unit through the second meter incremental device to the charge indicator. 1a. Circuit arrangement. according to claim 11, characterized in that the traffic direction relays (G1, G2) are switched on when the first counter incremental device which sends out the current impulses to the counter becomes effective. 13, circuit arrangement according to claim 11, characterized in that each energized traffic direction relay (G =) switches on the relay (GI) which characterizes the traffic direction of the next lower valence. 1.4. Circuit arrangement according to Claim r for systems in which subscriber stations with and without charge displays reach the same connection devices, characterized in that switching means (GAr) which identify a subscriber station with charge display switch on the switching means (h2, 23 etc.) which enable a current impulse to be sent to the charge display. 15. Circuit arrangement according to Claim 2 or 13 and 14, characterized in that the relay (GAr) which characterizes the connection of a subscriber station with charge indicator switches on the second counter incremental device. 16. Circuit arrangement according to claim 1, characterized in that the current impulses for the subscriber counters and the charge indicators are given via various auxiliary wires to counting devices (subscriber counter GZ or counting relay Z) arranged on the subscriber's connection line. 17. Circuit arrangement according to claim 16, characterized in that the current impulses for the subscriber counter are given via a special auxiliary wire, for the charge indicator via the test and holding wires. 18. Circuit arrangement according to claim 1, characterized in that a control counter (KZ) is provided in the exchange, which is influenced by the actuation of the charge indicator causing current surges. 1g. Circuit arrangement according to. Claim 18, characterized in that the control counter is actuated by the relay (Z) which brings about the current impulse via the subscriber line and is arranged on the subscriber's connection line in the exchange.