DE846116C - Switching in an automatic telecommunication system for the numerical setting of a line selector under control by impulses - Google Patents

Description

(WiGBl. P. 175)

ISSUE ON 7th Al ¹ GUST 1952

X 3 / i-> ΙΊΙΙο I Ji a ^{: {} -

has been named as the inventor

The invention relates to a circuit in an automatic Eernmeldesystem, z. B. with eiiK'ni automatic telephone system, for numeri-ScIk ¹ H setting of a line selector with one direction of movement and a fixed position of rest under control by Inipulse:

Ks is already a mc circuit for setting one Known by the voter. Ικ-i of the voters two groups more individual, d. H. Marking contacts not connected to corresponding contacts of other voters contains and contacts of one group between contacts of the other group in the Contact bank are arranged. An impulse contact leads under control of the Xunimeni disk impulses an occasion criterion and a folding criterion for the contacts of one group and the contacts of the alternate to other group, while any further contacts have a starting criterion. ÜfxM- a test arm checks the control device the voter the type of criteria and stops the voter wemv the arm on a marking contact with 1 criterion, and lets the voter move on if the marking contact made has a starting criterion.

In the idle position of the selector, the idle marker contact has a hold criterion. At the When the first impulse is received, the criteria are swapped and the voter moves continue until a marker contact of the other group is found which now has a hold criterion. When the second pulse is received, the pulse contact swaps the criteria again,

whereby the contact at which the voter is stopped assumes a starting criterion and the The voter moves on until a contact from the other group is reached, which is now a stopping criterion having. The circuit acts like an electrical escapement.

The hold criterion can be, for. B. consist in that the marker contact is on voltage while a contact with the starting criterion dead, ίο in other words not with a voltage source connected is. Conversely, the hold criterion can be due to the absence of tension and the starting criterion can be indicated by the presence of voltage.

The method of electrical escapement has the advantage that switches with one direction of movement can be used ¹ , which are simpler and cheaper than Wäliler with two-dimensional movement; in addition, no registers or individual setting switches are required. Since the distances between the contacts at which the voter is stopped after a series of impulses can be regulated within wide limits as required, the numerical groups can have a very different size from one another.

The aforementioned principle is both about recruitment can be used by group dialers as well as for setting line dialers ^. In the However, he only finds a known circuit in the line selector for setting to a desired one Decade. (Group of Ten) Application. While adjusting to the desired output within the decade the selector is effective as a step switch, so that the circuit does not work together with any centrally operated voters can be used. Selector acting as a step switch with self-breaking contacts can be effective have the disadvantage that the speed is insufficient can be increased, whereby the reliability of the setting is very jeopardized.

The invention overcomes these disadvantages and provides a circuit in which both the decade setting as well as setting to the desired output with the help of an electrical Inhibition takes place. In principle, all outputs of this selector can be used with this circuit, and so there are no intermediate services Auxiliary marker contacts are required to which no output line can be connected. The circuit according to the invention is characterized in that the first contact is the odd Decades after every odd tens impulse the check criterion and after every even tens impulse has the starting criterion and the last contact of the even decades after every odd one Ten pulse has the hold criterion, while the other marker contacts during a ten pulse series show the starting criterion and the odd contacts every decade after every odd one Single pulse the stopping criterion and after each even single pulse the starting criterion and the even contacts of every decade after every odd single pulse the starting criterion and have the stopping criterion after every even single pulse.

The invention is explained in more detail with reference to the drawing explained, in which an exemplary embodiment of the circuit according to the invention is shown.

The figure represents in schematic and simplified Form a circuit for setting a line selector with the help of an electrical escapement in which the cause stop marking takes place by means of a so-called gap process, d. H. the Marking is checked directly by the rotary magnet of the switch, and the starting and that Holding criterion is formed by the fact that the relevant marker contacts are connected to the battery or are not connected to it.

The drawing represents only those elements that are necessary for a proper understanding of the invention are essential ·.

From the contact database of the voter only part of the test arm estrichenen T l> Inhibition "is shown with the contacts arc X, 11, 12 and so on. The other contacts and brushes of the selector, such as the contacts and brushes via which a speech connection is established or with the help of which the busy marking for the various outputs takes place, as well as the means for checking the busy marking are omitted in the drawing for the sake of simplicity.

In contrast to the contacts of other sheets, the marking contacts of the inhibition sheet are not connected several times with corresponding contacts of other line selectors.

In the rest position of the selector, the test arm T is in contact with the normally closed contact Λ '. When the rotary magnet D is excited, the arm 7 "strokes in the direction of the arrow 'along the marker contacts.

The contacts 11, 21 etc. correspond to the. Exits of the voter who are assigned the same ones digit. Contacts 11, 12, 13, 14, 15, 16, 17, 18, 19 and 10 correspond to outputs of the first Decade, contacts 21 to 20 correspond to outputs of the second decade, etc.

The normally closed contact N and the last contacts (10, 30, 50, 70, 90) of the odd decades are connected to the line L ₃ . The normally open contact q _{2 of} a relay Q is connected between L _{: i and earth.}

The first contacts (11, 31, 51, 71, 91) of the odd decades are connected to the line L ₄ . The normally closed contact q .-> is connected between L _{4 and earth.}

Of the remaining contacts of the llemmungsbogens the contacts whose bucket number is odd, for example the contacts 13, 15, 17, 19, 21, etc., are connected to the line L ₅ , while the contacts whose ones digit is even, such as. B. 12, 14, etc., are connected to the line L ₆ . Contacts of any non-numeric outputs, e.g. B. contacts which correspond to a line associated with a Neiienstelle and which are not shown in the drawing are directly connected to earth.

In the de-energized position of this relay R , the lines L ₅ and L _{6 are} connected to earth via the normally closed contacts C ₁ and c _{: i of} this relay. 1st the relay E

When excited, the line / .. üIkt is connected to the normally open contact c, with /., and it is the Lei-HiniT /.,. tiIx-r den ArlK'itskontakt f., init / ", ver

'Ι »> ί ο

hu η den.

The mode of operation of the circuit is as follows: If the line switch is occupied by a group selector in a preceding stage, the occupancy relay C ', the line L _{x is} energized. Relay C prepares its work contact C ₁

ίο 1 · 'negative circuit for the rotary magnet /). By closing the Arlx'itskontaktes c, an excitation circuit for the relay /; in series with the normally closed contact />., the relay II and the ArlK'itskontakt Ic _x <h '> switch prepared. The relay /: is not energized in this circuit because the contact Ic ₁ is open when the probe is in the rest position.

The dialing pulses are fed to the line L., in the form of Vim Frdinipiilsen, to the pulse receiving relay. Home reception of the first decade pulse at the relay. / by closing the ArlK'itskontakte U ₁ and </., this relay becomes the relay (J in the circle of FnU 'via the Arlx-itscontact </,. the normally closed contact p _x <k-> relay /', the ArlK 'itskontakt a., of the relay .7, the normally closed contact />., of the relay /', the winding of the * relay (J and ülx-r energizes the battery Ha to FnIe back.

J) The relay (J closes with its work contact </, an I circuit for itself in series with a winding of the relay / '. As a result, however, the relay /' is not energized because its winding is over the ArlK'itskontakt q _v the normally closed contact />. ,, the ArlK'itskontakt a., and the normally closed contact P _{1 is} short-circuited.

Aul.ieivlem is c by tightening of the relay, the relay Q Il over the working contact of the relay C, the ArlK'itskontakt r /., Of the relay (J and ArlK'itskontakt ". Excites the Relais./. The relay / ) picks up later than the relay (J. which is important from the following (! rounds. Naturally, this effect can also be achieved directly by raising the relay II with a delay in relation to the relay (J ). The relay // closes its alarm contact />, parallel to the alarm contact (Z _{1 of} the relay./ and its alarm contact />., parallel to the alarm contact </. _t dv> relay 0.

The relay II drops out with a delay. so that it remains held for a period between two pulses of the same series and is re-excited by the next pulse.

At the end of the first pulse, the relay Λ drops out. so that by () opening the ArlK'it-skontaktes </., the mentioned short circuit for the relay / 'is interrupted, and the relay /' picks up in a circuit of Irde, the ArlK'itskontakt Z) ₁ . the winding of the relay / '. the working contact q _x . the 'winding of the relay (J to I battery Ba.

The relay / 'sets the armature of the changeover contacts p _x and ρ., Λη the ArlK'itslage.

ISeim liegiim Λ <· <the following ¹ impulse the relay (J. Because its winding is intact by closing the ΑγΙκί tski. · - (Λ, <k'S relay .- / via the working contacts <i _x . Ρ. ,, a. , and P _1. The relay / 'remains every <x ^- h in the circuit of earth via the ArlK'itskomtakt /> _r the winding of the relay P, the ArlK'itskontakt />.,. the Arlx? itskoivtakt a . ,, the normally open contact P ₁ to the battery Ba is held until this circuit is interrupted by the relay A dropping out at the end of the second impulse in the case of type> eitskontakt a .

The relay circuit P, Q is therefore back in the initial position after two pulses. The screeching mutual effect is repeated when the following impulses of the same series are received. At the beginning of every odd impulse the relay Q is energized, and at the beginning of every even impulse the relay (J drops out again. The relay circuit P, Q acts like a pulse halving circuit. As Ix-notices, the relays Q and II pull

Ix 'at the beginning of the first pulse of the series of ten'. As a result, the rotary magnet I) in the circle of earth ιιΐκ-r den- ArlK'itskontakt c /., the relay Q, j the line L _v the break contact Λ, the brush T, 'the ArlK'itskontakt / ■>., des Relay B, the Ar1x? Its-ι contact C ₁ , the winding of the rotary magnet /) to liatterie Ha energized.

The voter is set in motion and the J brush T leaves the rest position A '. The voter j closes his ArlK'itskontakte Ic ₁ uiwl Ic.,. The relay Ji is not energized because the normally closed contact Ik _{1 is} open.

The brush T stops Ικ'ίπι reaching ^{1 of} the marker contact 11, since this contact is not connected to earth at this moment and the excitation circuit of the rotary contact D is thus interrupted. Contact 11 is the first contact of the first ¹ decade.

When the second pulse of the series of ten is received, the relay Q drops out, as IK'reits mentioned, and closes its break contact q. ,, whereby the rotary magnet /) is again excited, namely in a circuit from earth üIkt the break contact q.,. the line L ₄ . the marker contact 11, the brush T, the ArlK'itskontakte b., and C _x . the winding of the rotary magnet I) and further via the battery Ba back to Ii never.

The selector moves on and controls the outputs \ 2 to 19 of the first decade, the marking contacts of which are 'grounded' via the normally closed contact c or the normally closed contact c. The voter keeps Ικ-in reaching the exit ίο, which is the last of the first decade. whose marker contact is not grounded. since the ArlK'its contact £ /., is open.

It is now assumed that the output to be rooted has number 23.

After the second pulse of the series of ten there are no further pulses in this series, and the working contact remains a. _t open for a time longer than the release time of relay B. The relay B drops out and opens its working contacts Z) ₁ and b. " Which in this case has no immediate consequences ¹ , since both the rotary magnet /) and the relays / ■ * and Q are demagnetized. By closing the normally closed contact />., The

>., the relay /: in a circle of earth üIxt the Arlieit.s-

contact C ₂ , the normally closed contact b ₃ , the normally open contact k _v energizes the winding of the relay E to the battery.

The relay E closes a hold circuit for itself via the normally open contact e _x , independently of the normally closed contact b _s , and puts the armature of the changeover contacts e ₂ and e ₃ into the working position.

When the first pulse of the series of units is received, relays A, Q and B are energized in exactly the same way as 1> e at the beginning of the series of tens of pulses.

Relay B holds during the unit series. The working contact q ₂ closes, whereby the rotary magnet D is excited via the working contact q ₂ , the line L ₃ , the marking contact io, the brush T, the working contacts b ₂ and C ₁ .

The voter now moves * to exit 21, d. i. the first output of the second decade.

At the second unit pulse the relay Q drops out, the contact 21 is connected to earth via the normally closed contact q ₂ , the normally open contact e ₂ and the line L ₅ , and the selector moves to the output 22.

With the third unit pulse the relay Q is energized again, the marking contact 22 is earthed via ^a 5 , the normally open contacts q ₂ and e _s and the line L ₆ , and the selector moves to the desired output 23.

Since no further unit pulses follow thereafter, the relay B drops out and means, not shown, are actuated which check the occupancy status of the desired output.

When the call is over, relay C drops out, which means that relay E also drops out. The rotary magnet D is now excited in a circle from earth via the normally open contact k _{2 of} the selector and the normally closed contact C _{1 of} the relay C, the winding of the rotary magnet D to the battery. The selector now moves on until the ArixMtkontakt k., When it reaches the rest position, opens and the rotary magnet D is demagnetized.

It is now assumed that the voter is on

output 33 is to be set. In this case, the series of ten consists of three pulses.

As mentioned before, the voter moves after

♦ 5 the second tens pulse to output 10. The relays Q and E are then de-energized and the marker contact 10 is not earthed.

With the third ten pulse, the relay Q picks up, and the marker contact 10 is grounded via the normally open contact q ₂ and the line L ₃ .

The voter then leaves the exit 10, moves over all the exits of the second Decade and remains when the first output 31 of the third decade is reached.

In general, if the number of pulses If the decade series is odd, the voter ends up on the first contact of the corresponding Decade, and if this number is even, on the last contact the one preceding the desired decade Will last for a decade.

Since in the present case no further decade pulses occur after the third decade pulse, the relay B drops out, whereby the j relay E is again excited via the normally open contact C ₂ , the normally closed contact b ₃ and the _{normally open contact ^ 1.}

In addition, relays P and Q drop when the normally open contact ^ ₁ opens. The normally open contact b ₂ is open before the normally closed contact q ₂ closes, so that the rotary magnet D is not excited.

With the first pulse of the following series of units, first the relay Q and then the relay B are energized by pulling in the relay A in the manner already described. The normally closed contact q ₂ is therefore open before the normally open contact b ₂ closes. The rotary magnet D is therefore not excited and the selector stops at output 31 after the first unit pulse.

At the second unit pulse the relay Q drops out, and) the marker contact 31 is grounded via the normally closed contact q ₂ and the line L ₄ . The voter moves to exit 32.

At the third unit pulse the relay Q picks up again and connects the marker contact 32 to earth via the make contact q ₂ , the make contact e ₃ and the line L ₆ . The selector now moves to the desired output 33, whereupon the relay B drops out and the busy marking of the output is checked via a test arm of the switch, not shown in the drawing.

The circuit can be changed in various ways within the scope of the invention.

It can e.g. B. the holding criterion by connecting the relevant marker contacts to earth or indicated with the battery; in this case the event stop marker should be marked with a separate Test relays are tested with the rotary solenoid instead of directly; this test relay then controls in turn the rotary contact in a circle, the one break contact of the relay and one Contains contact that is closed after the criteria for at the beginning of a pulse series exchanged for the first time.

The pulse halving circuit with the relays P and Q can also advantageously be accommodated in the connection circuit or in a register instead of in the selector, so that this circuit can be used both for controlling the group selector and for controlling the line selector.

In addition, instead of the pulse halving circuit described any circuit suitable for the intended purpose can also be used.

Claims (2)

PATENT CLAIMS: i. Circuit arrangement Ix ¹ I an automatic telecommunications system, ζ. Β. a telephone system, for the numerical setting of a line selector with a fixed position of rest and an ISewegungsrichtuog under control of a decade and a unit pulse series, in which the marker contacts of the selector marked by a certain test arm are not connected several times to corresponding contacts of other voters and those of these marker contacts to which after the voters a ZvbnerimpulsreilK ¹ can set, are divided into two groups and the contacts of one group are included between contacts of the other group, means are provided that the contacts of one group a stop criterion and the contacts of the other group an alarm during a decade pulse series. Apply the criterion and swap the criteria once for every ten-pulse, while the starting criterion is applied to any intermediate contacts during a ten-pulse series, if a control device is also present. the deti voter stops when the I test arm makes a marking contact with the I laltkriterion, and passes the voter on when a marked contact has the has the starting criterion after every even tens pulse and the last contact of the even decades has the starting criterion after every odd tens pulse and the holding criterion after every even tens pulse, while the other marking contacts during a tens pulse series have the starting criterion and the odd contacts every decade after each odd single impulse have the stop criterion and after every even single impulse the starting criterion and the even contacts of every decade show the starting criterion after every odd single impulse and the stop criterion after every even single impulse. 2. A circuit according to claim 1, characterized in that the excitation circuit of the rotary magnet of the selector contains a contact (b,) which is closed only after the start of a series of pulses. 1 sheet of drawings © 5282 7. 52