DE965787C - Circuit arrangement for telephone extension systems with dialer operation and participants with different traffic authorization - Google Patents

Description

ISSUED JUNE 19, 1957

D 15803 VIII α f 21a *

has been named as the inventor

Traffic authorization

The invention relates to a circuit arrangement for telephone private branch exchanges Voters and participants with different traffic authorization, according to their authorization through various potentials in their preselection organs on an ovarian artery Marked are.

If the requirement must be met, individually to the calling extension subscriber assigned call character in the exchange depending on the setting of a to bring the connecting device following the preselection element into effect differently; are special transmission measures and facilities required. .

In known arrangements of this type that use call seekers as preselection organs, these are equipped with so many switching arms that the procedures to determine the authorization of the calling Participants and to involve various

709 551/13

Signals in the exchange are carried out via separate switching arms.

Another known arrangement with call seekers uses the one for transmitting the Be-S Authorization markings available © Help sadar also to control the switching on of the lamps, however is the implementation of these switching processes · not without providing another special one of their own or central auxiliary sader possible. The present (o invention provides a way of determining the authorization of the calling extension and the transmission of the required characters the processes required by the exchange workstation via the normal network station selection to control without the provision of special auxiliary wires, which is advantageous and expedient Way is achieved that during, the Abfaillzeit of the Anrafreluis in the selection and the response time of the activation relay in the group selector the authorization identifier via the pilot wire transferred to the group selector and saved there unid after the call relay in the selection has dropped out the subscriber-specific call lamp and after addressing the occupancy & relay in the group selector the circuits provided for differently influencing the call lamp are switched on will.

In the drawing, an embodiment of the invention is shown, and only those switching means of a preselector designed according to the invention and a group selector are shown which are necessary for understanding the invention. In the preselector, the connection shown in dashed lines is provided between terminals K 1 and K 2 for extension participants who are not authorized to officiate. In the case of subscribers with partial office authorization who receive an exchange line only through the operator after dialing the exchange code, the dotted connection between terminals Ki and K 3 exists, and for subscribers with authorized office who can set up office connections automatically, the connection is neither Ki-K2 nor the connection K iK 3 exists.

The following explains the switching processes that occur when the extension subscribers have the various authorizations mentioned dial the outside line code »o«.

If a subscriber picks up his handset, the relay R is energized via a subscriber loop, which sets the preselector in gear in a known manner, as can be seen from the drawing. If he has found a free group selector, the relays T and A respond via minus, e-arm of the preselector, contact 8 r, windings II and I of the relay T, c-arm of the preselector, c-wire, resistance Wi ¹ Sj Contacts 29 α, 28 k, 26 h, winding III of relay A, earth. By contact 29 α the short circuit for relay C is canceled so that it responds. Relay T opens the call circuit at contacts 2 1 and 4i, thus creating the circuit for relay R and switches the speech wires through to contacts 3 i and 5 1 , whereupon relay A is also excited via windings I and II. Relay X as Differential relay remains inactive.

If the calling subscriber is not authorized to officiate, i.e. a subscriber in the house, speak to relays Y and Z in the group selector during the drop-out time of relay R before relay C responds via: Earth, connection Kz-K 1, contacts 12 r, ιοί, if arm of the selection, rf wire, contacts 142, 16 c, windings I of relays Y j and Z, minus. This circuit is interrupted again shortly afterwards by contacts 12 r, 16 c and 142. Relay Z is held by minus, windings I and II of relay H, contacts 39 x, 41 z, winding II of relay Z, contact 43 c, earth. Relay Y, on the other hand, drops out, since no holding circuit is established via winding II when contact 402 is opened. Relay H does not pick up in the circuit just mentioned because its windings I and II are connected to one another. With contact 53 ζ the subscriber is identified in the group selector with regard to his authorization. The call lamp AL is switched on by contact 13 ζ : Minus, lamp AL, contacts iir, 10 i, rf arm of the preselector, rf wire, contact 13 z, earth.

If the calling subscriber has half-office authorization, only relay Y responds after setting the preselector via earth, resistance Wi 2, connection K ¹ T ₁ -Ki, contacts 12 r, 10 1, rf arm of the preselector, J wire, contacts 142 , 16c, windings. I of relays Y and Z, minus. Relay Y is held by minus, windings I and II of relay H, contacts 39 x, 402, 423 /, · winding II of relay Y, contact 43 c, earth. The subscriber's authorization is now through contact 523; marked in the group selector. The lamp AL lights up in the circuit: Minus, lamp Au, contacts 11 r, ιοί, J-arm of the preselector, rf wire, contacts 14z or 153 ;, 17 c, 18 b, earth.

If the calling subscriber is authorized to act, neither relay Y nor relay Z is energized. There is no identification of the trunk authorization in the group dialer. The call lamp AL lights up in the circuit: Minus, lamp AL, contacts iir, 10 i, rf arm of the preselector, rf wire, contacts 14 ^, 17 c, 18 b, earth.

Let us now consider the processes that occur; if the subscribers have the outside line code »o« Select.'

If the connection originates from a subscriber in the house, i.e. if relay Z is energized, then when the ninth step is reached in the group selector - over this decade subscribers with official and semi-official authority, but not house points, can reach an inquiry point - and after closing the Decade contact 45 dk 9 relay B energized: minus, relay B, contacts 45 dkg, 53 <2. AZ ^c > earth. The test arm of the group selector is switched off at contact 36 fr.

Relay H is energized via contact 49 &: Minus, winding III of relay H, contacts 49 b, 47 x, c, earth. Relay H holds itself above minus, winding III of relay H, contacts 5 ο h, 51 w, 53c

Earth. It prevents the group selector from turning in a manner not shown and closes the contact 2jh. As a result, the busy signal Bs is applied to the winding III of the relay A via contacts 2.Jh, 25 y, 24.2 , which is transmitted inductively to the subscriber. By opening the contacts 56 h and 58 h and closing the contacts 57 h and 59 h , the polarity of the speech wires is reversed, but this is of no significance here.

If the participant has half-office authorization, i.e. if relay Y is energized, when the tenth lifting step is reached and the decade contact 46 dk ο relay B is energized via contacts 46 dk ο and 52 y in the group selector. As before, it switches on relay H with a hold circuit. After closing the contacts igb and 213 / the call lamp flickers in the circuit: Minus, lamp AL, contacts iir, ιοί, tf-arm of the preselector, <i-wire, contacts 14 ζ or ^τ 5 Vj 17 ^c > ¹ Q ^ . 213 /, flicker FL.

If the operator now puts his or her interrogation plug into the latch marked by the lamp AL and flips the interrogation switch, relay X responds via minus, windings I of relays A and X, contacts 59 h, 60 p, fr-wire, fr- Arm of the selection, not shown fr-vein to the. Switch cabinet, earth. Relay C is short-circuited through contacts 30 χ and 31 h , so that it drops out. The c wire is interrupted at contact 43 c and the identification and auxiliary relays are brought to waste. The partially set group selector and the preselection are triggered. The latter is occupied again, which is not shown, when the rest position is reached via the c-branch of the interrogation plug. The operator can now query the subscriber and assign him an exchange line.

If the calling subscriber is authorized to use the exchange, the automatic establishment of the exchange connection by the relays Y, Z, B, H is not hindered after dialing the code number »0«. After the test relay P has responded, the speech wires are switched through to contacts 55 /> and 61 p . Relay A drops out and short-circuits relay C to drop out. Via contact 33 p earth is placed on the c wire, so that relay Z responds via its winding III and with contact 13 s the call lamp AL turns on steadily. In addition, the control relay V is kept energized via contact 33 p for the duration of the connection via the c wire (shaft contact 32 w open).

Claims (2)

PATENT CLAIMS: ι. Circuit arrangement for telephone extensions systems with dialer operation and subscriber stations, which are characterized in the preselectors according to their authorization by different potentials applied to an auxiliary wire, characterized in that during the fall time of the call relay (R) in the preselector and the response time of the occupancy relay (C) in Group dialer the authorization code is transmitted to the group dialer via the auxiliary loader and stored there (by relays Y and Z) and after the call relay has dropped out in the preselector, the subscriber-specific call lamp (AL) and, after the occupancy relay in the group dialer has responded, the call lamp provided for differently influencing the call lamp Circuits are switched on. 2. Circuit arrangement according to claim 1, characterized in that the Signalisienmgestramkreise of the authorization determining switching means (Y, Z) and influenced by them. Auxiliary switchgear (B, H) can be used . Considered publications:
German patent application p-55329
VIIIa / 2ia3D. For this 1 sheet of drawings! © 609 528/217 5.56 (709'551 / 13 6.57)