DE1009247B - Reversing or direction selector in telecommunication systems, in particular telephone systems, in which the lines of a bundle of cables in one direction can be distributed between the bundles of other directions in the contact bank of the selector - Google Patents

Description

GERMAN

There are reversing dials and directional selector in telephone systems known which when they are set On the line bundle to be tested, bundles of lines in other directions have to be crossed beforehand, without checking them (skip). You can only reach the trunk group to be tested by repeating Shutdown of the voter in each case on the latching or locking device arranged between the bundles of lines Marking positions. The repeated stopping and starting of the selector requires a considerable amount of time in the redirection and attitude of the voters, who in the break between two arriving Current surge series is often not available. In addition, the well-known reversing selectors have between the bundle of lines not only a single marking position, but several, z. B. for spin registration.

Above all, the invention aims to shorten the reversing and setting times of the voters as well as unconnected ones Avoid steps between the cable bundles that are lost for cable connections. Simultaneously is to be achieved compared to the known reversing selectors, a saving in relays.

From the German patent specification 692 572 a reversing selector is known whose identification selector (follower) itself serves as a direction selector for the secondary directions. With this selector, the series connection of two switching arms in the test and marking circuit and corresponding wiring of the contact banks assigned to these switching arms means that the lines of the bundle of wires in the different directions in the contact bank do not have to be connected one behind the other, but can also be distributed between other bundles of wires. Regardless of this, the voter is set to a free line of a bundle to be checked, even if the voter has to skip several line groups that are not to be checked, without repeatedly stopping each line group in an uninterrupted ("flying") run. The setting times of this voter are therefore already very low. The use of this known circuit in a modification, such that the two switching arms of the reversing selector do not lie one behind the other in the test circuit via their pivot points as in the known arrangement, but the contact bank swept by one selector arm is connected to the pivot point of the next selector, on fast current reversing selector, e.g. B. motor rotary selector, however, has the following disadvantage: The tolerances of the selector arms and the selector multiples add up as a result of the series connection, which results in a reduction in the testing time of the selector. This would be in the case of fast-moving voters, which in themselves already have a very short reversing or directional selector
in telecommunications, in particular telephone systems, in which the lines of a
Line bundle one direction in the
Voter contact bank distributed

between the bundles of others
Directions can be arranged

Applicant:
Siemens & Halske Aktiengesellschaft,

Berlin and Munich,
Munich 2, Witteisbacherplatz 4

Dipl.-Ing. Rudolf Hannig, Munich,
has been named as the inventor

Demanding testing time for your test relays is hardly to be accepted. Second is also the need disadvantageous that the existing multiple for the marker arm of a motor rotary selector on each Step must be cut and extensive for the summary of the individual cable bundles Wiring is required per voter step.

The invention therefore proceeds for reversing or direction selector, in which the lines of the line bundle one direction in the voter's contact bank distributed between the trunk groups of others Directions can be arranged and the voter in his setting on the subject to be examined Line bundle the existing line bundle runs over without stopping, another route. This exists that in each case a test arm of the voter tests the individual lines of the line bundle and without Switching of this test circuit via a further auxiliary arm of the selector one in each case from the position of the Selector-influenced marker relay without shutting down the selector on trunk groups that are not to be tested Identifies the beginning and end of each line bundle to be tested in the first test circle.

For direction selector it has already been proposed, in each case the beginning and end of the line bundle different directions through a marker relay

709 546/186

mark that sann about an auxiliary of the direction selector and two switching arms of the direction selector assigned marker selector is controlled. If the direction selector does not find a free line in the line bundle to be tested, it runs to the spin step at the end of the bundle, which is also the marking step for the next line bundle. on this step is temporarily stopped and then, in steady run, without checking, over all the following

The control of the test circuit by the marker relay can be done both by a normally open contact as a normally closed contact as well as a combination of both contacts take place. The windings of the Marking relays can be on the side of the pivot point of the selector arm as well as on the slat side of the arm and on both sides. A winding of the marker relay can also be used lie on the contact bank side of the test arm. The line bundle is switched off until the mark 10 Starting the marker relay · can either be done when overkierstellung before the initial step to be tested, a marking step or depending on the scarf, where it is temporarily stopped again to control when reversing by a locally generated then search the bundle again. This rush current occurs. The throwing off of the marker relay Arrangement does not allow completely uninterrupted can either when overflowing a marking step Run the selector from the marking of the bundle 15 by counter-excitation via a second winding or on until checking for a free line. Apart from a short circuit of the marker relay or underneath the arrangement requires a second circuit break of the hold circuit to take place, arm of the marker selector and an additional switching The flying marker can be used both for each

poor on the direction selector, which is used to release the Rieh selector circuit individually as well as when used device selector only the marked line group 20 of a common setting element for a group must check for their idle or busy status. of selector circuits (e.g. for a rack frame.)

By the German patent 619 336 it can be used. In the latter case, the snow protection is known, the test circuit of a reversing selector that of the multiple on the marking steps and the turning steps by a marking relay via a further auxiliary circuit, provided that these are not already identical to the (auxiliary arm) of the selector by means of counter-excitation to 25 of the marking steps, away. Besides the control that the remaining lines in a main direction between the individual Wähäer test circuit after receipt of the changeover indicator
interrupted by a reverse winding and only after
Setting the voter to the trunk group to be tested is closed again, with the voter 30
without shutdown in the line bundle to be tested
comes in. However, this reversing selector is only open
limited to two directions, as there is one in front of the
Line bundle to be tested lying bundle, not
but their multiple and also not according to this bundle of a main direction, usually a bundle lying out of the office, is able to pass over without examination, (overriding external direction, check. That jump thereupon). following, from a follower of the reversing voter

According to a further embodiment of the invention, the recorded code can only then determine whether the Marking relays are used to keep the selector connection in the external direction over trunk groups not to be checked with a greater than 40 or whether in other directions, mostly in the office of the speed to switch over as internal directions remaining beyond the callers, reversed the direction to be checked. This can be. Figures 19, 20 and 21, 22 show directionality in particular when skipping many or large voters, which initially do not have any Line bundles achieve time savings, which directions occupy, but their followers through If necessary, the incoming code number is set again to enlarge the bundle 45, initially one used can be. When changing from fast to correct direction marked on the direction selector. Of the running at the normal walking speed of the direction selector then turns to the marlers in the case of free choice, a marked direction may have to be entered. Doesn't he find any in this direction the marking step and the first free line to be searched, it runs to the one at the end of the account one step each lie, the main direction not lying with a line 50 clock bank, the so-called is connected and to reduce the kinetic key figure way over. Certain directions, e.g. B. those

circuits and the common setting element to control the test arms only a single marker relay and one line is required for each test arm.

The above and other features the invention will be explained in more detail with reference to FIGS.

FIGS. 1 to 14 show so-called reversing dials, which immediately have a free line in when they are occupied

Energy of the drive contributes to the extent necessary for the test. This braking step can
but also as a crazy step for this one
Bundles are used.

According to a further embodiment of the invention can
through a safe time sequence between actuation
of the test relay and the marking relay, the marking steps on the speech and test wires are also included

which lead to the calling subscriber's own office are from the overflow to the code path except.

55 Motor rotary selectors are known per se for both the reversing selector and the direction selector Assumed with two switch arm sets, which pass a total of 112 exits. The switch arms of the motor selector are spatially by 90 °

outgoing lines are wired. For this purpose, the actuating 60 offset field magnets EMI, EM2 transmission time of the marking relay must be driven by means of an armature mounted at the intersection of the coils which is on the one hand certainly larger than the maximum permissible axes. This will be the shortest step time due to the alternating response time of the test relay and, on the other hand, less exciting excitation of the field magnets in rotation. sets and drives the 65 selector arms through the use of the marking circuits via a gear transmission. The alternating excitation of the field coils when the selector is shut down by the test relay is additionally controlled by two marking steps from the selector shaft as »spin-controlled cam contacts eml, em2 . When gen «are used. In this way, both field magnets can be energized if the spin registration is "on the fly", ie stopped without the voter. During the setting movement shutdown of the selector, can be carried out. 70 are the speaking arms of the switching arm sets from the

Contacts lifted. After setting the selector to a free line, they are pressed against the bank contacts by pressure magnets Ado (upper switch arm set) and Adu (lower switch arm set). The voters each have a fast-responding test relay P and an auxiliary test relay PH assigned to it. The follower of the reversing selector or the marking selector of the direction selector is formed by a small selector relay WR ,

Sub-bundle R ext α in free choice a free line. If the motor selector already finds a free line in this sub-bundle, the test relay P responds:

+, el, d2, GL, Pl, Pll, kl, c-arm (C-relay),

Relay P stops the motor selector via its contact p 1 and places the low-resistance winding via its contact / »2 parallel to the high-resistance winding Pl, which is set by the code number. Its selector io winding of the auxiliary test relay PH. This speaks in the arm is denoted by wr. These switching elements like- test circuit also on. After the drop, it is repeated in all exemplary embodiments; they are therefore always identified in the test circuit of the relay D in the test circuit via its contact by the same reference numerals ge phi in series with the low-resistance winding P II. Likewise, in all exemplary embodiments, after the auxiliary test relay PH has responded, the marker relay is denoted by the letter K via contact ph2 of the pressure magnet, e.g. B. Adu, net, likewise the test arm of the voter with c, which is switched on and the speaking arms to the bank contacts marking arm of the voter with d. Pressed on via the switch arm.

of the selector relay are reversed in a known manner.

control relay U, Ul, U2 energized. Furthermore, there is no free line in the del of the external direction, so when reversing dialers are assigned a relay R on is initially switched to the marking position m 1 in front of the group, which overrides again from del R int 1 when reversing. On this one speaks about the marker

falls. For the sake of clarity, the exemplary embodiments only show the switching means mentioned above and the circuits that control them, which are required for understanding the invention. In particular, the speaking arms of the voters are not shown. In all the exemplary embodiments, the marking arms located in front of the contact steps of the various cable bundles are immediately the marking relay K on:

+, el, d2, d-Axm, ml, lulb, Kl, Wi2,

Relay K speaks before the voter has left step m 1 and, via its contact k2, remains independent of the further progress of the voter. By opening contact k 1, it immediately interrupts the test circuit via the c-arm of the reversing selector. Positions marked consecutively with ml, "2 ...". 30 As a result, the voter continues to run unchecked. The line bundle R int 1, the spin positions on which the selector spin step ddl, marking step w2, line when all lines in one direction are occupied, bundle R int 2 are also travels over the end of the line bundle, without checking , Turning step dd 2, marking step sets, with ddl, dd2 etc. and those above these positions «3. On this, the counter-actuated spin-registration relay with DDl, ₃₅ winding II of the relay K is switched on via the marking arm: DD 2. . . designated.

1 and 2 show a reversing selector with +, el, d2, d-arm, m3, k3, KIl, Wi2, -.

thirty lines for the external direction, divided

in three sub-bundles Rexta, Rextb, Rextc each with ten relay K comes during the overflow of the

Lines, which with eight lines of the internal ₄₀ step m 3 to the waste and closes at the contact kl line bundle R int 1 and six lines of the recently the test circuit via the c-arm. Now internal line bundle Rint2 each in the contact - more the voter checks from the next step on from the voter's bank for a contact sequence together - a free line in the external sub-bundle R ext b. are taken, which in the free election time of the voter can find no free line here either, it can be checked for. The wire bundle of the internal 45 of the marking position w4 via the d-arm of the selector directions are each after the outputs of the ex relay Kl, winding I, excited. This retains the internal sub-bundle through a parallel connection again locally and interrupts again at the contact repeatedly. Before each bundle there are marking steps ml, kl the test circuit. The voter continues to run over m2. . . w8 planned. After the bundling of the inter-internal directions 1 and 2, up to the marking step direction, turning _{steps cWl , 50 m} Q are also reached. In this I arm is about the How-dd2 <, after the external sub-beams Rextc is turned on, a counter winding KIL, relay K spin position dd ext provided. That on the fäjft and closes at contact k 1 in turn the contact bank side of the marker arm d of the reversing test circuit. The voter now checks the marker relay K ist located in the voter with an external sub-bundle R ext c for a free line, voice winding I and a counter winding II to the _55. If he finds one, the relays P, PH speak

Throwing provided. It controls the test circuit running over the c-arm of the selector with a break contact k 1.

When the reversing selector is assigned, the assignment relay C ( not shown) responds. This prepares the test circuit and the marking circuit by closing its contact el. At the same time, relay R is energized through contact c2. Relay R switches the receiving relay to the incoming one in a known manner

and shut down the voter. If he does not find a free line here either, he turns to step dd ext. The test relay P responds to this:

+, el, d2, GL, Pl, Pll, kl, c-arm, dd ext (step 69), WiI, -.

The voter is shut down. The Prüfhilfsrelais PH gets through the relatively high resistance in the test circuit Wii not enough power,

α-wire, which corresponds to the code number 65 to address. Receives in the spin position

Has to include number current impulse series. After relay R has responded, relay D is energized via the zero position contact emO of the motor selector. Relay D switches on the EMI field coil at contact dl . The motor selector starts up and searches the external

the spin registration relay DD ext a current impulse:

+, el, d2, ii-arm (step 69), dd ext, DD ext,

This pulse is limited by the drop in relay D, the winding DII of which is short-circuited via contacts pl, eml, dl. After falling from. Relay Z) the calling subscriber receives dialing signals (not shown), regardless of whether the voter has found a free line in one of the bundles R ext a, R ext b or R ext c or if all external lines are busy in the spin position DD ext ran. In the latter case, will

The next marking position m 1 (when starting from the bundle R ext a) or w4 (when starting from the bundle R ext b) or w7 (when starting from the bundle R ext c or dd ext) is sufficient. As a result of the parallel connection of the marking steps emi, w4 and w7 in the contact bank of the (i-arm, the reversal processes are independent of whether the reversal takes place from the sub-bundle R ext a, R ext b or R ext c or from the spin step dd ext . The description is

with contact d 2 the relay P is de-energized and drops out, io is therefore limited to the last case that the

while in the first case relay P is held in series with relay PH via contact ph 1. This ends the setting of the selector in the external direction, which is inevitably associated with the assignment,

Voter reached the marking position m 7 in step 70. The further details apply analogously to the marking positions ml in step 11 and ot4 in step 40. In the marking position m7 , it is now immediately

and the subscriber can again drop relay K by dialing the number, as the following circuit

for the opposite winding KII is closed:

+, cl, d2, switch arm d (70 = marking step m 7), 6ulb, k3, KIl, Wi2

Relay K in turn closes the test circuit at contact kl so that the selector can search for a free line in the direction R int 1 in steps 71 to 78. If he finds one, the test relay P speaks and, depending on this, the auxiliary test

gentlemen.

It depends on the current surge series (s) that are now arriving whether an external or internal one
Direction is marked. If a series of current impulses occurs, which characterizes the external direction, 20
so the selector relay WR is set to a step to which no reversing relay is connected
is. Unless the voter occupies a free one
Conducting the sub-bundles R ext a, R ext b or R ext c
had been shut down, changes to the subscriber 25 relay PH . If he does not find anything free in this direction; if the voter, on the other hand, is on the spin line, then the voter runs on the spin step step DD ext , the calling ddl receives in position 79. In this, the c-arm participant speaks about the c-arm participant now after the termination of the and resistance Wi 1 again the test relay P to the selector relay busy signal. He hangs up his phone and silences the voter. The auxiliary test relay PH has and thus brings the occupancy relay C by around 30 fault current. During the d-arm, the control selector gets to waste. This causes the home dropout time of relay D to spin-register run-up of the reversing selector and the selector relay. lais DD1 an impulse. After the relay D has dropped

Is by the incoming code, z. B. by holding the calling party busy signal. He puts the code number "44", the internal direction 1 identified, on his receiver and thereby causes the home run to be recorded, so the switching arm wr of the selector relay 35 becomes the reversing selector and the follower WR. initially set to step 4; In this, the internal direction R int 2

Control relay Ul characterizing in a first stage of its winding I impulse series (here, for example, six energized. It prepares by its contact zuia a current surges), relay U2 is energized, which is present in the circuit for its winding II. This is overall the same manner as the Umsteuerrelais Ul ,, when the Wählerarm wr by the second 40 kierrelais Kl by a capacitor shock anwirft the march Lossen. Surge series is set to step 8. The other processes then proceed in the same way as with

the reversal by relay Ul in the internal direction R int 1. They can be easily followed on the basis of the circuit diagram.

45 FIGS. 3 and 4 show a reversing selector which, for example, has 3 * 8 lines in the external direction, which are distributed between the line bundles R int 1, R int 2, R int 3 for three internal directions. It differs from the reversing selector according to FIG. 1, inter alia, in that each marking step and spinning step are reduced to one step. So there is only one unconnected step between the cable bundles. The marker relay K on the Koneiner free line of the sub-bundle R ext a, R ext b 55 has the clock side of the cf arm of the reversing selector or R ext c was, or in the case of spinning in two windings, of which the second external direction Relay P had already dropped out after opening, but only for the creation of the test circuit in contact ö! 2. Relay t / l interrupts the spin case, while the first winding on contact 5ulb the circuit of relay R; Relay R triggered at the beginning of the line bundle to be tested drops out with a delay. During the fall time of the 60 and at the end of the same is thrown off again by short circuit.

When the reversing selector is occupied, occupancy relays C and then relays R and D (not shown) respond. The reversing selector relay D switches the drive of the 65 on contact dl when the relay D responds and searches for the motor again. The voter now runs away from his in the sub-bundle R ext α a free external current position in one of the sub-bundles. If he finds one, the test relay speaks P R ext a, R ext b or R ext c or of; the through-on and then the auxiliary test relay PH, whereby turning step dd ext loses, whereby the test wire is stopped because of the selector. If he finds the first open contact kl remains interrupted and the external sub-bundle does not have a free line, then it becomes

In this step, relay Ul is excited in the second stage via its two windings:

+, wr (S), Ulli, ZuIa, Uli, -.

The marker relay K is now triggered by the discharge surge of the capacitor Cp :

-, WHrKl, 2ulb, Cp, WiZ, -.

Relay K maintains its contact k 2. With contact k 1, the test circuit is interrupted, and relays P and PH drop out, provided that the selector is on

Relay R is switched on relay D : +, r, 4 »1 &, DI, -.

ίο

at the overflow of the sub-beam lying at the end of Markierschrittes m 1 relay K on the d-arm energized:

+, el, d2, d-Αττη, ml, IuI, Kl, Wi, -. Relay K is linked to the following circuit: +, c3, k2, Kl, Wi, -.

Relay K opens its normally closed contact k 1 and thereby interrupts the test circuit via the c-arm

Reversing relay energized. If the reversing dialer is already in the cranked position behind the last external sub-bundle, the calling subscriber receives 5 busy signals after the dialer relay has been set. He hangs up his receiver, this causes the occupancy relay C in the reversing selector to drop out, which causes the reversing selector and the selector relay to run home. If a free line in the external direction was occupied, it is not available

of the voter, so that the voter, without checking, the busy signal via io and there is also no change

the trunk group of the three internal directions can continue to run. If the marking step m4 behind the cable bundle R int 3 or in front of the external sub-bundle R ext b overflows, the marking relay K 1 is short-circuited via the d-arm:

+, el, d2, d- arm, mi, r3, Wi, -.

Steering.

If the calling subscriber selects the code for an internal direction, e.g. B. for the internal direction 1 the number 3, the selector arm wr is set to step 3 by the corresponding 15 current impulse series. In this the reversing relay Ul responds. Relay U1 interrupts in the usual way at Kon relay K drops out before the voter steps m 4 clock 5 m 1 the hold circuit of relay R, which has left. The test relay P and the high-impedance relays dropping out , and also switches the relay D a rotating relay DD3 can also after falling of the 20 (not shown), which does not respond with its contact dl the relay K via contact Al, since the motor circuit closes. Thereby the circuit after relay have fault current. Since contact k 1 is back to Fig. 2, the spin steps are closed with the marking steps, the continuing selection can now be combined, there is now a different ler over the c-arm of the sub-bundle R ext b on a sequence of the Reversal processes in the event that check if the line is free. If he also finds a free line in the external direction in this bundle 25 assignment, but not a free line, the voter continues to run. While in one of the bundles R ext a, R ext b or R ext c rend of the overflow of the marking step m 5 is found over was, compared to the case that the selector the d-arm in turn the marking relay K activated. into the spin position for the external direction, relay K holds itself independently via its own contact k2, ie on marking step m9 . For those who depend on the progress of the voter. The first case applies to the voter 30 that with the relay Ul, the relay K is started again immediately via the trunk group of the lais K:

three internal directions away to the marking position _ | _ _c % _r ^ iul Kl Wi ■

Ot 8 in front of the third external partial bundle. When this marking step overflows, the winding K I is again short-circuited via the d-arm. In contrast to FIGS. 1 and 2. Relay K 35 is released if not due to a capacitor surge. It is thrown by closing the contact kl , but receives a current pulse limited by relay contacts back to the test circuit via the c-arm of the selector. Relay K binds itself independently. The voter now checks the last external part of relay R via its own contact k2 and bundle R ext c. If he does not find a free line here either, the test wire is disconnected with contact k 1, so that the device runs to the marking step m 9 at the end of 40 relays P and PH can drop. After dropping out of this bundle of cables, continue. Here the selector is running via the relay P and the pick-up of relay D.

~ on And reaches the next marker without checking

step, which marks the beginning of the bundle R int 1, ie, depending on the start from the bundle Rexta, Rextb or Rextc , the marking position ml, «5 or w9 is reached. On these steps, which are on the con-

d-arm of the selector energizes relays K (via a second winding) and P (via a third winding):

+, el, d2, d-arm, ot9, w3, 2u2, 4wl, KIl, Pill, -.

The selector is stopped by closing contact p 1. Relay K with contact kl interrupts the circuit for the test relay P via the c-arm, but on the other hand, creates a circuit for the spin registration relay DD ext in parallel to the relay P via contact k3:

+, el, d2, p3, k3, c-arm, t »9, DD ext, -.

clock side of the d-arm are connected to each other (ot9 via the rectifier Gl2), relay K is activated by short-circuiting the winding Kl via the circuit

+, el, d2, d-arm, ml or w5 or ni9, GL2, 3ul, Wi, -

thrown off. Relay K drops out, so that the voter can now check a free line in the bundle R intl. This circuit is checked when relay D 55 drops. For the second case that the reopened, so that the turn-on relay only receives a short control in the direction R int 1 after the pulse. When relay D drops, it also falls
Relay P off, while Reilais K is above its own

Contact k2 continues.

turn in the external direction, i.e. from the marking position W9, the relay K does not pick up when the relay responds, i / l, because after the selector has been set in 60 selector immediately before the external direction to be checked is received the calling subscriber is in the direction of R int 1. The relay K , which is still the dialing character, regardless of whether a free one
Line in one of the sub-bundles R ext a, R ext b or
R ext c was found or whether the voter in the
Spin position for the external direction
Step ot9 has run.

The caller then dials a code
the external direction, the selector relay WR is set by the corresponding series of impulses. However, none of the 70 ways is passed over the voter arm wr, as in the first case. The same is also the case

709 546/186

from the spin registration in the external direction has held on via its own contact k 2, in this case after the relay D has been activated via the short-circuit 65

+, .el, d2, d-arm, m9, Gl2, 3wl, Wi, -

discarded and after the dialer starts looking for the lines of the bundle R int 1 in exactly the same

11 12

The process of spinning in the internal direction 1 runs to the next marking position at the end of the

the same for both cases. If the voter does not find a free bundle, i.e. at step m 3 or ml or mil,

Line, he arrives at the marking step w2 which is also the spin position for the

or w 6 or w10, depending on whether the associated through bundle R is int 2 . On this will now be back

rotary step is. On this the 5 relays K and P are switched on again: '

Relays K and P switched on _{:, Λ} , " , _Λ ", _, ΛΛ _ _

^& +, el, d2, d-arm, m3 or w7 or mil, 2w2,

. +, el, d2, d-arm, »2 or, m6 or w10, 2CII, PIII, -.

4 «1, 2CII, PIII ₁ -.

The voter is stopped by relay P;

Relay K switches the test relays P to 'contact kl io relay K is via contact k 3 and c-arm a clock from the C-arm from the other hand is represented by con- circuit for the spin-registration relay DD 2 k3 a Circuit for the spin recorder:

Relay DBl closed:. <jo _t o »o λ ο ν»,

^& +, el, d2, p 3, k3, c-arm, w3 or m7 or

+, el, d2, p3, k3, c-arm, wilO, DDl, -. mil, DD2, -.

At the same time, the selector with relay P becomes stylish

puts. The subscriber receives the busy signal. He terminated relay D. The calling subscriber hangs up his handset, causing the home run of the busy signal. He hangs up his phone and causes changeover selector and selector relay to be initiated. thereby the home run of the reversing dialer and the caller selects the code for the internal ₂ o follower WR. In a similar way as for direction 2, e.g. If, for example, the number 5 is used, the internal selector direction 2 is used to control the reversing relay! 72 when arm wr is in position 5. Identification of the internal direction 3 by the relay i72 again interrupts the reversing relay U3 at the contact Iw2 .

Holding circuit of relay R, which drops out with a delay. It is FIGS. 5 and 9 show a reversing selector

now to distinguish again, whether the voter of 25 with 2 · 10Leiteln for the external direction, whose one free. Line or from the spin step sub-bundle R ext α and R ext b, distributed between, which is reversed from the external direction. In the four first case, one behind the other in the contact bank, when relays [72] pick up, wire bundles are immediately arranged, each with six wires of the internal relays K via directions R int 1, R int 2, R int 3, R int 4

+. c 3 r4 4 u 2 KI, Wi, ³ ° ^{sm (} * · The ■ marking relay iC controls the test circuit

an arbaits contact kl. The incentive of the marker thrown and holds itself via its own Kon- relay K takes place immediately when the reversing cycle k 2 is occupied, independently of relay R. Relay K under selector, the marker relay drops out when the test circuit breaks with contact kl , which do not skip Cable bundle to be tested ent relays P and PH as well as the pressure magnet drop out. 35 neither by short circuit, as in Fig. Δ, 9 and 11, After also relay D, switched on by relay C72_, or by counter-excitation, as in Fig. 10 and 12, the selector starts and overflows, or when reversing by interrupting the without checking (contact kl open), first the remaining holding circuit. The marker relay also controls the borrowed steps of the line bundle in question insofar as the R ext a, R ext b or R ext c, the following ₄₀ selector over not to be tested line bundle with marking step ml or «5 or m9 , on which the higher speed is switched off than the already activated relay K, only one more over the line bundle to be tested, which receives the pick-up pulse, but which remains ineffective, and normal free selection speed is checked. When it overflows too - again without checking. - Transition from high speed to free choice; the subsequent bundle R intl. At the end of this 45, if necessary between the marking step and the bundle, the marking position m2 or ot6 or the first to be searched. Line lie one step each, m 10 is reached and when overflowing, this relay K which is not connected to a line and to reduce the kinetic energy of the selector by short-circuiting

+, el, d2, d-arm. w2 or m6 or mlO, 3m2, drive to the size required for the test

ffli 50 is used. This braking step can, but at the same time as

Turning step for the bundle in front

thrown off again. The test will be turned with contact k 1. The spin step is closed again in this circle via the c-arm, so that in contrast to the known arrangements, voters continuing to run are now in the bundle R int2 behind the marking step. One can look for a free line, the marking can. 55 steps finally also with outgoing For the second case, that the selector peeled off the lines, if the actuation time of the external spin position on step w9 by marking relay is greater than the highest permissible triggering, the starting process is different. Relay K is the talk time of the test relay, but on the other hand it is less than it was drawn from the spin registration! the shortest step time of the voter. It fell to this orphan and relay R. Relay K continues _to go on, despite the insertion of braking steps, only these are attracted, and the selector runs after the activation of for the connection with outgoing. Loose lines from relay D from step »9, this time only losing. In the case of the additional wiring of the bundle R intl, without checking, overflows. got to. Marking steps with outgoing lines takes place when step wlO is overrun at the end of reaching a marking step on which the bundle R intl is relay K, as described above, thrown 65 marking relays for the purpose of switching the test circuit, and enables after closing the con- from state » Check «for» not checking «activated clocks kl the check on the subsequent one, in chronological order first the evaluation of the bundle R int 2. checking process and then the evaluation of the The spinning process is again marking in both cases. With a free line on the marking match. If the voter does not find a free line, either the relevant marking current

circle interrupted, as in Fig. 11 and 12, or the marker contact that controls the test circuit, ineffective are made, as in Fig. 6 and 8. When the line is busy, the evaluation of the marking not disabled. For high-speed motor rotary selector, this results in the requirement for one Actuation time of the marking relay from 3 to 5 ms. Compliance with these relay times can easily by, appropriate relay types or other known means.

On the other hand, it must also be used for the wiring the marking steps with outgoing lines ensure that when the Marking relay for the purpose of switching over the test circuit

Approach voters. This is looking for a free line in the first, external sub-bundle R ext α in a free choice. In order to be able to check, the marking relay K 5 was already energized when the selector was occupied:

+, el, 2u, r &, An, K, Wi, -. Relay K maintains its own contact: +, k2, Iu, An, K, Wi, -.

the marking position j «1 short-circuited the marking relay K via the d-arm of the selector:

+, el, d2, d-arm, ml, 2ul, Ab, Wi, -.

Relay K drops out and, by opening its contact k 1, interrupts the test circuit via the c-arm of the selector. At the same time, the attenuator RC is switched off by opening the contact k 3;

Relay K closes the test circuit through its contact k 1 via the c-arm of the selector. The voter can therefore check the first external sub-bundle during his run. Relay K switches from the state »not checking« to »checking« the test 15 furthermore via contact k 3 an attenuator RC in the relay cannot respond subsequently, ie after actuation of the bridge between the power supply lines of the two marker relays, or at least field magnets EMI, EM2 , which a normal can no longer put the voter still on the marking step - the pace of the voter during free elections. The former can inevitably only entail at about 140 steps per second. a test time limit contact, which is controlled by the reversing selector in the external part of the motor shaft, as in Figs
can also be achieved by a time condition, where
the sum of the actuation time of the marking relay
+ Response time of the test relay greater than approx. 4 ms 25
have to be. Further security can also be achieved in that the wiring of the
Marking steps with outgoing lines and the
"Fast-slow-control" of the voter can be coupled with each other, so that the transition from the _{30th of} the voter thereby assumes an enlarged step-state "not checking" to "checking" always with the speed. He runs with it, without checking, the transition from higher to lower speed via the line bundle R mil, R int 2, R int 3, R int 4 speed is identical. As a result, the step time on the internal directions until it is shortened to that of the marking step, so that an undesired stopping step before the second external part is bundled on this step. The one connected to the ώ contact bank is. On the following braking step spin-down steps dd 1, dd2, dd3 and ddi there is no line or the spin- stop-locked spin relay DDl to DD 4 is interrupted, so that a. It is impossible to spin-on with such a short test relay engaged when these steps are overrun. pulse that they are not due to their dampening

When the current values can respond to the ₄₀ responding. The response time of the DD call relays and the relay connected in parallel is expediently at least five times as large as auxiliary test relays more together than with the known ones; Test circuit circuits, so is the so-called
Fault current safety for the auxiliary test relay with sufficient current and time safety for 45
the response of the test relay in the case of the shutdown of the selector on a spin step
to which only the test relay respond, but not the auxiliary test relay that switches on the response magnets

_{may no longer achieve a test resistor} that is non-resistive to free lines by means of a correspondingly high external sub- bundle R ext b (such as looking for. If he does not find a free line here either, see below)

how the overflow time of a step is chosen. When the step ra5 is passed, the marker relay K is energized again:

+, el, d2, J-arm, m5, r2, An, K, Wi, -.

Relay K maintains its own contact k 2. This closes the test circuit again via the c-arm, and the voter can now use the second

with the resistance WiI in Fig. 1). For this reason it is provided in FIGS. 5 and 9, in the shutdown circuit of the selector on the spin step, the test relay via the c-arm on one. To have capacitor ₅₅ checked, the amount of charging current is just sufficient to make the test relay respond, but it is too small to also respond to the auxiliary test relay connected in parallel.

he runs on the spin step dd 5. Here speaks via the, c-arm test relay P by a capacitor discharge surge:

+, el, al, GLl, GL 2, WiS, Pl, Pll, y, kl, x, c-arm, dd 5, 4m, CpA, +.

After the capacitor surge has subsided, relay P holds up via the high-ohmic resistor WH which is parallel to the capacitor Cp 4 and parallel to the capacitor. The test soft the required holding current for the auxiliary test relay PH parallel to the test relay P cannot respond in the relay after the condensation current has decayed in this circuit. The voter is limited to shock. Of course, this test can be stopped. Via the d-arm of the voter, in methode, the durohrotation position dd 5 also speaks in a corresponding manner, the breakthrough registration in the case of the others. Embodiments of the invention 65 relay DD ext to:

be used. , * _, _o j λ jjenr,

τ · 1 u - ^ ^ j TT -11 1 j +, d, "2, α-arm, ddo, DD ext, -.

In detail, the changeover voter works according to the '

Fig. 5 and 9 as follows: When assigning the reversing The current surge is limited by falling of the selector speak, one after the other the relays C (not let relay D. After completion of the shown with the assignment), R, D (not shown) on. Relay D leaves the 70 prompted voter setting is the voter

either on a free line in the direction of R ext a or R ext b or on the turning position of the external direction dd 5. In any case, after the relay D has dropped out, the calling subscriber receives the dialing signal as a request to start dialing. If he dials the code number of the external direction by which the selector relay WR is set, no changeover relay is energized via the switching arm wr , and the relay R drops out (not shown). If the voter found a free external line, the setting remains unchanged; If, on the other hand, he had run to the cranking position ddS , the calling subscriber receives the busy signal after relay R has dropped out. He puts down his phone

on, whereby the home run of the reversing selector and 15 direction 1 takes place as follows. Relay K, which is initiated by the voter relay. If the calling party dials the code of an internal direction after going crazy via subscriber, see above
the reversal takes place from a free line of the
Bundle R ext α or R ext b had held out in the same way, when relays U and Ul have picked up, like the reversal from the external cranking 20, through an interruption at contact 1 u , it becomes position dd 5. Only one exception is made The changeover after the relay D has picked up, which is switched from the external cranking position to the relay U or Ul
internal direction R int 1 as the lines of this
Follow the bundle immediately after step ddS.
If z. B. the number 6 for the internal direction 2 is 35
is selected, then come after setting the selector relay WR via its sixth. Step reversing relay UI and common relay U to respond.
Relay U interrupts the hold circuit at contact 1 u
the Markierrelais K. Relay K falls down and stops 30 may Meanwhile P relay, which after the contact Durcham the kl, test circuit. Furthermore, the rotation registration has dropped out, now relay U at contact 3 u relay R no longer switches off. Relay U1
switches the starter relay D on again (not shown).

dd2 or dd7. Here the test relay P responds via the c-arm:

+, el, d2, GLl, GL2, Wi5, Pl, Pll, y, kl, x, c-arm, dd2 or ddl, 2u2, Cp <i, +.

. The voter is shut down. The spin registration relay DD 2 responds via the cZ arm:

+, el, d2, d-arm, dd2 or dd7, DD2, -.

The calling subscriber receives a busy signal. He then hangs up his phone, whereupon the voter returns to the rest position together with the selector relay. The mentioned exception of turning around after turning in the external direction in the internal

+, k2, Iu, An, K, Wi, -

is switched on (not shown), brought back immediately via:

+, el, d2, ti-arm, dd5, Gl3, 5 m, ImI, An, K ₁

Wi, -

and lasts immediately about:

+, k2, d4, An, K, Wi, -.

This causes the voter to start up because, in

respond via the c-arm, because when contact 4 m opened, the circuit was separated before relay D picked up. Relay P remains released and

between after interruption of the test circuit at 35 enables the motor to start after activation of

Contact kl test relay P has dropped out. The selector relay D, Da relay K picked up and the test circuit

runs, without checking, first over the remaining lines of the external bundle R ext α or R ext b, then over the marking step m 1 or «6, on the

driving from to 2 resp.
Relay K energized:

to 8 is via the d-arm

with contact k 1 is closed, the voter begins the next step with checking the lines from Rintl. If he does not find a free line, so the relay K cannot respond, then via the 40 it is stopped at the spin position dd 6, step to 1 or dd5 and continues overflowing the line _unc j, the relay DD1 receives, as described, a line of the bundle R int 1, also without checking, registration pulse.

and reaches the marking position «2 or m8, which the calling subscriber dials the code number

the beginning of internal direction 2 on top of another internal direction, so control the next step marks. During the over 45 control relay t / 2, [73, i / 4 together with the common relay U in a corresponding manner the marker relay K. The current flows can easily be followed in the figure.

As Fig. 10 shows, relay K can instead of 50 short-circuit in the. Marking positions in front of the lines not to be tested are thrown off by a counter-winding Ä'II, which is to be connected to the switching point Ab via a normally open contact k 3. The marking steps ml to to8 on the 55 speech and test wires can also be wired with outgoing lines, if you ensure that the test relay responds faster than the marker relay and the test relay then prevents the marker relay from dropping out. This can be done by circuit leaders. internal direction dd 1 or dd6 overrun, 60 variants, as shown in FIGS. 11 and 12, achieved by the arrangement behind the marking. Assuming that the voter at steps m 2 or to 7 contributes to the fact that the searches of the first external sub-bundle R ext α for the speed of the voter for the marking step m 1 required for testing still have a free, manoeuvrable amount can go down. Since a line has been found in the test circuit, the contact k 1 is now closed via the c-arm, the selector 65 test relay P can respond. Relay P then interrupts the bundle R int 2 via the as it continues
Check c-arm, he finds a free one in the bundle
Line, so <responds to test relay P and sets the
Voters silent. If the voter does not find a free line

+, el, d2, d-arm, w2 or to7, 1u2, An, K, Wi, -.

Relay K maintains its own contact: +, k2, r3, ri, An, K, Wi, -

and with its contact k 3 switches on the attenuator RC in the motor circuit, so that the selector changes from high to low speed. On the next. Step is still the spin position of the

in the bundle, it runs to spin step 70 is retained.

Fig. 11 at contact /; 3 (at switching point Ab) immediately the short circuit for relay K, which would otherwise be closed at this step. Relay K comes, not to waste. The test circle over the c-arm

247

The same thing happens in the case of the relay K not having two make contacts k 1 des connected in parallel

by short circuit, but, as shown in Fig. 12, marker relays and p 3 of the test relay in the test credit.

by counter-excitation via a second winding K II That the voter should be thrown off when relays if and are activated. By opening the Kon relay P one after the other on the marking direction min-

takts /> 3, which is at least no longer stopped in series with a normally open contact k 3 5, in which

before the counter winding KIl is connected, the motor rotary selector is also activated by a Zedtbadingang

When the test relay triggers an excitation of the counterpart, the sum of the actuation time

winding and thus a drop in relay K prevents marking relay + response time of the test relay

changes. If the voter now finds the marker, it must be greater than about 4 ms. An additional

step ml no free line, the test relay P io speaks for security can be achieved by the

not on. This means that in this step, the marking steps are not connected to, outgoing

prevents the marker relay K from being thrown off and lines and the "fast-slow control" of the

switches the voter's test circuit to “do not test”. Voter drive coupled with each other in the way

Another possibility for the marking steps is that the transition from the state "Do not always cover with outgoing lines, 15 check" to "Check" is always shown with the transition from FIG. 6, which in conjunction with FIGS. 9 and higher is identical to lower speed. 10 is to be considered. This is where the required steps lie. The step time on the switching means marking step is not shortened on the marking relay side, so that an undesired shutdown occurs on the test relay, but on that of the test relay. The circuit according to this step is excluded. On the after-Fig. 6 lets when the voter z. B. on the marking 20 following braking step but no line or step ml finds a free line, the discarding is the spin-stop circuit interrupted, so that the marker relay K via the d-wire prevents the An interruption of the test circuit via the circuit with the test relay activated is impossible. c-arm characterized in that between the, switching points χ FIGS. 13 and 14 show a Umsteuerwähler and y parallel to the normally open contact k 1 of the marking 25 again with 3 x 10 externen- lines and two relay. Normally open contact p 3 of the test relay is internal directions, the internal direction 1 with eight which is closed immediately after test lines and the internal direction 2 with six Leir relays P has responded. The sub-bundles of the external directions are

Since now it is not only necessary to prevent this from being interspersed in the voter contact bank between the marker relays after the voter has been checked for 30 internal directions. The marking relay K, the marking steps, if these are provided with outgoing winding, is on the side of the lines are wired, drops out and the test circuit rf arm of the reversing selector. The Prüfkreds switches to »not checking«, but also that the c-arm of the selector is controlled by a break contact k 1 test relay on the marking steps on which the marking selector is controlled. The marking relay is switched the test circuit from "Do not test" to 35 via the cf arm and the marking steps for which "Test" is not to be switched after the person to be tested has been addressed. Bundle excited and via the d-arm and kierrelais K and the production caused by it, the marking steps can address before the bundles to be tested of the test circuit or at least thrown off by short circuit. If the selector is reversed, the marking relay will no longer stop at the marking step. through, a common Umkann. The former can be prepared by the circuits of control relay 40 U cranked and Markierschritte Figs. 7 and 8 can be achieved, The Fig. 7 is in the _un Umsteuerrelaiis d Ul, U2 .. dropped. Connection with Figs. 11 and 12, Fig. 8 in conjunction In the assignment to cycle through the relay C, tying with FIGS. 5, 9 or 10 to consider. R and D energized. Relay D allows the motor selector to

According to Fig. 7 is on the side of the test relay running. He searches in the first external sub-bundle

Test circuit in series with the normally open contact k 1 of the 45 a free line. Assume he finds here

Marking relay a briefly activated test time - such, then the test relay P responds:

limitation contact mb, the z. B. from the motor shaft _Λ , _{o ΓΊ Λ στ PTT fc1} ._

can be controlled. This interrupts.

dependent on the response of the marker relay K ₁ parallel to the high-resistance winding I of the test switch is held locally, briefly the test circuit and 50 relay is then, via contact p2 , the auxiliary test prevents in this way ■ during the overflow relay PH in the test circuit> excited. Relay P stops the subsequent selector via the marking step. The calling subscriber now receives speaking of the test relay P in the test circuit. The actuation - more dial characters than request with the selection of the contact mb will begin with constructive dimensions. If the subscriber selects the code number of the accepted ones so that contact mb is directed to an external direction, the voter remains on the line that has already been found free for the activation of the test relay. After sufficient time, after the test arm hits the participant, dials the code number > an internal one. Direction, a lamella opened and only when the _z . B. the number 18 for the internal direction 1, represents the slat is closed again, expediently _s ; _c h the follower WR . on step 1, over the actuation time of the relay K , which the stage relay Ul selects via its winding I in for a little longer than that of the relay P, which is permissible because the first stage is energized. Relay U1 triggered by the motor is not stopped with relay K. This closes his contact .3 u 10 the. Excitation in can be achieved that the test circuit in front of the second stage. With the second series of impulses overflowing via a marking step, the eight current surges, the selector relay is set to step 9 to switch relay K from "not checking" to "checking" 65. About this position speaks after falling has not closed at all, since contact k 1 of the pulse relay A, not shown, is not closed until the delay relay V relay Ul in series has already opened via its contact mb. Winding towards the second stage. A similar solution is shown in Fig. 8. Here the common relay U is also energized. After the end of the test time limit contact mb in series with the supply of these two series of current impulses, relay R falls

delayed from. After relay U responds, relay K is switched on:

+, .el, GLZ, K, Iu, rl, WiZ, -.

Relay K maintains its own contact after relay R has dropped out:

+, el, GLZ, K, k2, Wil ·, -.

Relay Kl interrupts the test circuit via the c-veins by opening its contact kl. This causes the relays P and PH to drop out. Closing contact kZ prepares the circuit for the spin registration relay for this direction. After relay U has responded, starting relay D is switched on again during the release time of relay R:

+, el, rl, tu, Dl, -.

does not stop. Relay K maintains its own contact k2 regardless of the continuation of the selector. Relay K in turn opens the test circuit at contact kl via the c-arm. The voter then runs over the bundles of internal directions until he comes to the marking position mZ. Here the marker relay is thrown off again by a short circuit via the d-arm:

+, el, GLZ, K, d-arm, w3, 2 m, Ab, +.

The relay / C drops out and re-establishes the test circuit via contact k 1. The voter continues and searches for the second external sub-bundle. If he does not find a free line here either, the marking relay responds via the egg arm and marking position «4. The test circuit via the c-arm is opened again. The voter continues to run over the bundles of the two internal directions to position w6. In this, the marking relay is activated again via the d-arm

at. As soon as he comes to the marking step ml , 20 short-circuited. The marker relay K drops out, the

Voter is now looking for the third external sub-bundle during his run. If he finds a free line, the c-core test relay P and auxiliary test relay PH will activate and shut down the selector. The calling subscriber now receives dialing characters as

voters who continue to run are now looking for a free line in the trunk group Rintl. If he finds one, then speak: the relays P and PH on again and shut down the voter. If he does not find a free line in this bundle, he runs on marking step ml. Here, the following circuit for relay K is closed via the d-arm:

After the relay D has picked up, the selector runs again 1. As soon as it clicks on the marking step ml ko: relay K is short-circuited via the egg arm .:

+, el, GLZ, K, d-arm, ml, ZuIb, Ab, +.

Relay K drops out. This re-establishes the test circuit via the c-arm via contact k 1. Of the

+, el, GLZ, K, d-arm, m2,2ulb, DD, Wi2, -.

Relay K interrupts the. Priifkrais on contact k 1 and prepares spin registration on contact kZ . At the same time, the following test circuit is established via the d-arm, which is coupled to the c-wire via a relatively high resistance Wi5:

+, el, dl, GLl, Pl, Pll, GL2, WiS, d-arm, ml, lulb, Wi2, -.

( Resistor Wi2 is low-resistance and serves as contact protection.)

In this circuit, only the test relay P responds while the Prüfhilfsrelais PH via the resistor Wi 5 in this circuit has fault current. After the test relay P has responded, direct earth is applied to the marking step ra2 via the c-arm, so that the spin registration relay DD1 can respond:

- (-, el, d2, pZ, kZ, c-arm, m2, DDl, -.

The calling subscriber then receives. Busy signal, he puts down his. Listener and thereby causes the reversal selector and the follower WR to run home.

Let us now consider the case that the changeover selector did not find a free line when it was occupied in the first external sub-bundle. As soon as it passes the marking position m 1 , the following excitation circuit for the marking relay is closed via the d-arm:

Request to start voting. He also finds in the bundle Rexte no free line), the selector passes into the through rotational position for external direction to step ml. Here, the suit is of the 30 relays K as well as the stopping with the plane parallel to relay K relay P over the D -Arm in the same way as was already described in the case of the spin process for internal direction 1. The registration pulse of the duration of the release time of the relay D is given via the c-arm to the relay DD ext , and the subscriber also receives dialing signals after the relay D has released. It is now assumed that the selector is to be reversed from the external spin position to ml in the internal direction 1. The subscriber dials the code number 18 again. After setting the follower WR , the second digit of the code number speaks, as already described :, in step 9 the common. Relay U and in series with it the relay Ul, this in the second stage. Relay K, which was held by its own contact k2 after turning in an external direction, is short-circuited over

+, el, GL Z, K, d-arm, ml, 5 m, ZuIb, Ab, +

thrown off. Relay K drops out and closes the contact kl in the test circuit. Furthermore, when relay U picks up, relay D is switched on via:

+, c2, rl, 4: 1t, Dl, -,

which closes the motor circuit with contact d 1. The test circuit is also closed with contact d2 via:

-K el, d2, GLl, Pl and PII, kl, c-arm, ml, DD ext, -.

-K el, GL 3, K, d-arm, ml, IuI b, An, WiI ₁ -.

The resistance WiI is so high that the test relay P lying parallel to relay K via the rectifier GL1, GL 2 and resistor Wi 5 received ext via the test relay P and the registration relay DD ; However, fault current in this circuit and do not respond, so that the voter can start up and search the cable bundle Rintl for a free line. If he finds one, speak again to the relays P and PH via the c-arm of the voter and stop the voter. If he cannot find a free line, the voter continues to the marking

Resistance WiI fault current receives and the selector 70 position m%, which at the same time rotation division

21 22

for the internal bundle of cables is 1. The c-arm will be closed again when the voter is at his

Registration on this step takes place in the already nem run a free line in the one to be tested

described. Way. Bundle R int 1 finds:

If the calling subscriber selects the code for, _Λ , .. _{rT pf pTT 1 o} „. , _. ... _n . ,, _o , ..ι j TiT-Vi _ '> ^c * -, al, LrL, Jr 1, Jr Ii, ImZ, 2m1, kä, c-Arm, the internal direction 2, so speak about the Wahler- 5 >>>><> ,,,

arm wr the reversing relays U2 (in the second stage) and

common relay U on. It can be said that if the voter finds no free leadership in this

Circuit easily keep track of that two. Relay the bundle, it continues to the marker position marker relay K in front of the bundle of cables to be tested m2, which at the same time discard the twisted position of its R int2 at step m2 or mS and, if it can. Here the reverse winding of the marker relay is activated, all lines of R int2 are occupied, the shutdown is switched on:

and spin registration on step m3 or m 6 _{+> Rn Ab>3ul>m2>} ^ _ _{Arm) k2} , Wi2, -.

cause. The circuits are analogous to the

from the circuits controlled by the control relay Ul .. Relay K drops out, the selector is shut down, where-

In. FIG. 15 is a circuit for a diverter 15 when a spin registration takes place, which is not

Selector with multiple trunk groups, for which external is shown. The calling subscriber receives the busy direction and two internal directions indicated, sign. He hangs up his phone, which initiates the Ausweise, marker relay K, a winding on the side of the reversing selector.

of the d-arm and a reverse winding on the side of the Will z. B. from the same sub-bundle R ext a in

d-Kon, tact bank owns. The test circuit reverses the internal direction 2 via the c-arm 20, so this is addressed when testing in the external direction by a reversing relay t / 2. In doing so, the normally closed contact of the marker relay K interrupts the testing in a 1 «2, on the other hand, the testing of the internal directions via the external direction, by a working group. The test relay drops out, the voter starts up. He contacts the relay K controlled. The circuits for now run over, without checking, first the external motor drive of the selector and for the reversing lines, then marking position ml, on which relays are not shown. You can, however, the marker relay K cannot be energized beforehand,

going. Embodiment taken, are .. because its incentive circuit is interrupted at contact 4m2

The reversing selector is closed when it is occupied; then he runs over, still without checking,

next set again to a free external line. the bundle R int 1. When driving over the marking, thereby speaking test relay and auxiliary test relay P // an: 30 position m2, the marking relay if, +, el, d2, GL, Pl, PU, Iu2, IuI, kl, is ^thrown :

c-arm, -. +, Kl, d-arm, m2, 3u2, An, Wi, -.

+, el, Λ2, GL, p2, PH, Pll, Iu2, IuI, kl, relay K II maintains its own contact. So-

c-arm, -; 35 more is the test circle over the c-arm again.

Relay PH maintains its own contact ph. rode. This will be closed when the voter closes

Relay P sets the voter in the usual. Let it continue in the bundle that now follows

quiet. If the external R int 2 finds a free line in the first sub-bundle:

Direction R ext α no free line is available, + μ jo rf Pi ρπ 9./9 ». i ™

. * -r \ *. tr r 1 c * 1 ·., λ r '> k * · j » CLL, KtJU, Γ 1, Γ 11, äMä, / c O, t-ΛΓΠΙ,.

the relay K is activated on step ml 40

about: If the voter does not find a free one in this bundle

+ Kl d-arm ml 4m2 At WiI, line, so he continues on the marking step m 3,

where the reverse winding of the marker relay is switched on and is maintained via its own contact k2, during which is:

Voters the following bundles Rintl and 45, _{νΛΛ ,,,} ,, ι ο wi

R mt 2 overflows without checking. Before the second

external sub- bundle Rextb becomes relay K on step.

«3 by counter-excitation of its winding II via: registration. The voter is shut down

+ XII From m3 d-arm k2 Wi2 ^un ^ ^ ^{he anru} f ^{s e} d participant will receive a busy tone.

'' · '' 50 He hangs up his phone and thereby causes the discarded. The voter can use the lines of the Bün- triggering the reversing selector. Check dels Rextb. If any of the following further Umsteuerwählers The circuit of Figure 15 sub-beams of the external direction of Fig. Repeats is characterized by a very low number of contacts of the relay K shedding at the start or the arrival Umsteuerrelais in the incentive and Abwerfkreisen the throw relay K at the end of the partial bundle up to the 55 marker relay on the side of the d-contact bank. Reaching the external spin position in which the FIGS. 16 and 18 show a reversing selector shutdown and registration takes place (not shown in FIG. 15 for an external direction with several sub-bundles). R ext a, R ext b and several internal directions When reversing to an internal direction, R int 6, R int 7, R int 114, R int 115, R int 11b, e.g. B. from the sub-bundle R ext α in the direction 60 R int 117. The line bundle for the internal direction R int 1, the reversing relay Ul responds and sub-bundles 6 and 7 are broken between the external sub-bundle by opening its contact ImI interspersed with the test and by connecting them in parallel to their outcirculation via the c-arm. The relays P and PH drop out, each time repeated. The total number of unfortunately voters is starting again. When the markings of the external sub-bundle and the internal Bünkierposition ml overflow, the marker 65 del R int 6 and R int 7 is maximally so large, relay K is activated. that the combined contact group within

+, Kl, d-arm, ml, 4μ2, An, WiI ₁ -. <? ^e , ^{r free} choice time of the voter with certainty over-

can be driven. Namhch it is with the

Relay K maintains its own contact k 2 and bundles R int 6 and R int 7 around internal directions, resistance Wi2. As a result, the test circuit over the 70 z. B. Cross-connections within one's own node

office or main office, after which further series of current impulses are required to establish the connection. On the other hand, the bundles R int 114 to R int 117 are supposed to be trunk groups which, for. B. to the so-called "services" such as B. time announcement, weather announcement, toto announcement, etc., lead. After reaching these end points, no further series of current impulses are to be sent via the cable bundle. For this reason, the grouping of the bundles in the voter contact bank is carried out in such a way that the trunk groups in the directions R int 6 and R int 7 are followed by the trunk groups in the directions R int 114 to R int 117. The former trunk groups are reached with single-digit codes 6 and 7, the latter trunk groups with three-digit codes 114 to 117. The selector relays WR1, WR 2 are provided as followers to record the three-digit key figures. The first selector relay accepts the single-digit code or the first two digits of the three-digit code, while the selector relay WR 2 has to accept the last position of the three-digit code. In contrast to the reversing selector shown in FIG. 15, the selected directions are marked in the selector's marking counter bank d not with the help of special reversing relays, which are switched on via the followers, but directly by the switching arms of the selector relays themselves. The marking relay K of the reversing selector works in a manner similar to that of the reversing selector according to FIG. 15. It has two windings, a pull-in winding on the d-arm side and a counter-winding on the d-contact bank side. The control of the test circuit via the selector's c-arm takes place in the external direction via a normally closed contact £ 3 and in the internal directions via a normally open contact k 2. The control of the marking relay windings is carried out using special marking steps ml to m9 in front of each line bundle.

The spin-off registration of the busy case of all lines in a bundle takes place in separate spin-off steps at the end of each bundle, the selector is stopped via the test arm c while the registration impulses are given to the spin registration relay via the d-arm of the selector will.

When the reversing selector is occupied, an occupancy relay C ( not shown) is again energized. This switches on starter relay D for the selector motor:

+, c2, emol (zero position contact ), D ₁ -. Relay R is also switched on:

+, c4, emoZ (zero position contact ), Pv, -.

Relay D switches on the field coils EM1, EM 2 of the reversing selector in the usual way through its contact d 1. The voter runs up. Relay R prepares the test circuit by closing its contact r4. The voter now checks the external sub-bundle P. ext a. If he finds a free line, the test relay P responds in the test circuit:

55

+, el, d2, GL, PI, PII, r4, kZ, c-arm, line ex, -.

65

As already described many times, it puts the voter to a standstill. The auxiliary test relay PH in the test circuit is energized parallel to the winding P I. At the same time the pressure magnet of the selector is switched on by the test relay PiT and the speaking arms are pressed against the contact bank, whereby the speech lines are switched through.

If the voter cannot find a free line in the external sub-bundle, the marker relay K is switched on in step «1:

. +, rl, ml, d-Ατπι, dZ, phZ, Kl, -.

Relay K maintains its own contact +, c6, kl, phZ, KI, -.

After the marker relay has responded, the test circuit at contact k 3 is interrupted. The voter overflows the bundles R int 6, R int7 without checking. At step m 3, the marker relay K is brought to drop out again by switching on a reverse winding:

+, c6, kl, dZ, d-arm, mZ, KII, -.

As a result of the relay K dropping out, the test circuit is closed again at contact k 3 via the c-arm of the selector. The voter checks the lines of the second sub-bundle R ext b . If these are also all occupied, the selector is stopped at the spin step dd ext:

+, el, d2, GL, PI, PII, νΊ, kZ, c-arm, dd ext, WiI, --._

The test relay P responds, but the auxiliary test relay PH has fault current through the resistor WiI. The registration pulse is transmitted during the release time of relay D to relay DD ext via the c-arm of the selector:

+, DD ext, dd ext, d- arm, dZ, phZ, KI, -.

The winding A'I has fault current in this circuit, since the relay DD ext is relatively high-resistance.

The calling subscriber now receives dialing signals regardless of whether a free line was found in the external sub-bundle or whether the dialer was shut down on the spin step dd ext . The calling subscriber can now start dialing.

In contrast to the other exemplary embodiments, the identification that a reversing direction has been selected is not made with additional reversing relays in connection with an auxiliary relay R, but rather directly by the relay R. "Holding" of relay R means "not reversing" the selector and releasing relay R "reversing". As soon as it is clearly established that reversing can no longer take place, relay R, in contrast to the other reversing selectors, no longer drops out, but remains on hold.

Is z. If, for example, a "4" is selected as the first digit, the selector relay WR 1 is set to the fourth step. During the pulse train, a delay relay V (not shown) dependent on the receiving relay is excited in the usual way; the relay R therefore remains in the following circuit during the series of pulses:

+, c4:, vl, r7, R, -.

After relay V drops out, auxiliary relay H is switched on via step 4 of selector relay WRl :

+, c 4, ν 2, wrl (contact of the voter magnate WR1), switch arm wr I ₁ step 4, H, -.

10

Relay H is linked via its own contact h 1.Depending on relay H , relay R is held in the following circuit:

+, c4, A 2, R, -.

Relay R, whose release time must be longer than the pick-up time of relay H, therefore does not release after the series of pulses. By opening the contact A3, the circuit for the selector relay WR 1 is interrupted, so that further current surges given by the contact α of the surge receiving relay remain ineffective. This prevents any further setting of the selector relay.

Is z. If, for example, the code number "6" is selected as the first digit, relay R can no longer hold after this series of pulses, since the selector arm wrl interrupts the hold circuit in position 6 after relay V has dropped. The drop in relay R results in the opening of contact r4 and thus the interruption of the test circuit via the c-arm of the selector. The test relay P drops out. When relay R drops out, starting relay D is switched on via contact r3. Relay D starts the reversing selector. Since the marker relay K is still free to dial in the external digits 114, 115, 116, 117. The bundles of the internal directions R int 114 to R int 117 only follow the sub-bundles of the external direction and the internal directions in the contact bank of the reversing selector 6 and 7, since the calling subscriber does not have to dial any further digits on the code numbers of these directions, so the reversing dialer has enough time for the reversal.

If, for example, the code »115« is selected, the selector relay WR1, which accepts the first number »1«, sets itself to the first step. After the control relay V drops out, the step relay U is energized in the first stage:

+, ei, v2, wrl, wrl (1), Ua, -.

Relay U maintains its own contact: +, lua, lub, Ua, -.

It is also prevented that relay R drops: +, lua, lub, GLa, rl, R ₁ -.

Any other number chosen first, with the exception of the codes 1, 6 and 7, means that the auxiliary relay H was switched on via switching arm wvl direction was de-energized, so is despite the closure of 25, which binds and the relay drops R.

Contact r5 in the test circuit as a result of the opening of contact k 2, the test circuit interrupted via the c-arm. The voter therefore runs through the remaining steps of the external bundle R ext α or R ext b , without checking, until it reaches the marking position m 1 or m4, to which marking relay K responds:

+, 4, c4, v2, wrl, wrl (6), ml, d-arm, d3, ph3, Kl, -.

and further impulses on the selector relay are prevented, as already described. If the reversing dialer has reached the spin position DD ext during free dialing in an external bundle, the calling subscriber first receives dialing signals, as already described. If the number subsequently dialed by the subscriber does not indicate a direction of reversal, the auxiliary relay H is switched on again via the selector relay WR 1, which an identification relay K again uses its own indicator to indicate that no reversal is in question

clock kl. This opens contact k3 and makes contact. After relay H has responded , the other

bar £ 2 closed. The opening of contact k3 is irrelevant in this case, but contact k 2 switches the test circuit through so that the voter can now test the bundle of direction R int 6. If the voter finds a free line in this bundle, the speech wires are shut down and switched through using the test relays P and PH in the normal way. In addition, when the caller opens, the busy signal is:

+, BZ, A4, r 6, emo4t, d4, AIII, +.

If the calling subscriber dials "1" after the first digit, corresponding to the code "115", and again a "Γ" as the second digit, the selector relay WR1 goes to step "2". Here, by energizing the relay U , the first stage was via contact

of contact ph3 the circuit for winding 45 3ua the circuit for picking up relay U in the second

Kl switched to high resistance via resistor Wi2. If no free line is found in the bundle, then in the last step dd6 of the bundle, the selector in which the test circuit is closed via the resistor WiI is shut down. The regi- 50 holds:

Level prepared. This will now be closed:

+, c4, v2, wrl, wrl (2), 3ua, GLb, Ub, -. Relay U responds in the second stage and

Strierimpuls on the spin registration relay DD 6 is in the following circuit via the d-arm transfer:

+, c 6, kl, d 3, d-arm, dd6, DD6, -.

Since relay R has dropped out, the calling subscriber receives a busy signal inductively via the winding ^ iIII of the receiving relay:

+, BZ, ρΗΊ, rS, emo <i, d4, AIII, +.

55

6ο

The participant then hangs up and triggers the reversing dialer.

The reversal in the internal direction 7 takes place in the same way as in the internal direction 6.

While the reversal in directions 6 and 7 only takes place with a single-digit code, the reversal in the other internal directions, which lead to so-called "announcement and service connections", only takes place after the third digit of +, 3ub, Ub, -.

The holding circuit for the relay R is now opened at the contact lub . At the same time, however, a new holding circuit for relay R has been created depending on the switching arm wr II of the selector relay WR II:

+, c \, v2, wrl, wrl (2), 3ua, GLc, wr2, wrll (0), r7, R, -.

The pulse transmission circuit is switched to the selector magnet WR 2 by closing the contact 4 via.

If any number other than "1" had been selected as the second position, relay R could not drop out, because it is held in the following way:

+, lua, lub, GLa, rl, R, - ..

This hold circuit is only interrupted when relay U is moved from the first to the second stage

Identification number. These key figures are, for example, the 70 becomes, i.e. when dialing the sequence of digits "11".

709 546/186

If »5« is selected as the third digit, the selector relay WR 2 is set to step »5«. Relay R can no longer hold itself at this step. It drops out after relay V drops. and interrupts the call circuit at contact r4. This means that the test relay P also drops out. After the relay R drops out, the starter relay D is switched on, which causes the reversing selector to start. Stand of the voters z. B. on a free line of the sub-bundle R ext a,

overflows the key figure path. This comes e.g. B. in question with directions in the own office of the calling Lead participant.

As is known, a direction selector differs from a reversing selector in that it is at the assignment does not initially seek to set a free line in a main direction immediately, but rather only waits for the directional code to be recorded. This is controlled by a marker, a small one

so, without checking, it first overflows the remaining selector relay, included, its switching arm

union lines of this bundle and the following bundles R int 6 and Rintl ', R ext b, R int6 and R int7, R int 114, until it has reached step w7. Marking relay K is switched on while this step is overflowing:

+, ei, ν 2, wrl, wrl (2), 3 ua, GLc, wrll (5), m7, rf-arm, d3, ph3, Kl, -.

its position on a marker arm of the direction selector indicates the desired direction. After setting the marker selector, the direction selector then adjusts itself to the marked direction, 15 whereby it may have to drive over a larger number of trunk groups without checking. He then only looks for a free line in the highlighted trunk group. If he does not find a free line, he turns to a twisted position at the end of the line. The marker relay stays above its own contact bundle, where the busy state of the entire clock and closes with its contact K2 again bundle is registered. The invention reaches the voter's test circuit via his c-arm, so that this voter not only searches for a "flying marking", the voter searches the lines in the following steps, ie a marking without stopping the voter, in the direction of R int 115 in free choice can. but also an on-the-fly registration on the shutdown and connection to a free 25 spin step. Instead of the hitherto usual still line or the spinning registration when occupied, the dialer runs on the spinning step

when registering beyond this step. The response time of a registration relay must therefore not exceed be as long as the duration of a selector step, about 7 ms, but for which suitable relay types are known. A contact of the marking relay ensures that only on the spin step the unsuccessful searched direction of the registration pulse given to the rotation relay

system trunk group and transmission of the busy signal take place as already described.

The reversal in the directions RIU, R116 and i? 117 takes place in the same way.

If, on the other hand, a number other than 4, 5, 6, 7 is selected in the third place, the auxiliary relay H responds again via the switching arm wrll in steps 1 to 3 or 8 to 0:

+ C 4 ν2 wrl wrl (2) 3UA GLc wr2 ^{is 35} · ^The S ^ezei g ^th direction selector are the

wrll (2) H '■''' Spin steps between the last step

'' a trunk group and the next marker

This indicates that there is no reversal step. The registration pulse can be made via the test arm c. The relay R is given to the registration relay in the following way. These relays must

be high enough to provide fault current to the test relay.

If there is to be no overflow onto the code path in certain directions, the voter will

G
held:

4-, c4, h2, R, -.

after the on-the-fly registration of the spinning case

payment direction goes crazy. A third winding is used to stop the selector when it is spinning of the test relay that is used with the high-resistance

The following series of current impulses can no longer change the setting of the selector relays because
the pulse transmission circuit at contact h 3 opened 45 on the next, marking step stopped. That is. If a reversing direction is marked, the same will occur if the selector is also in the characteristic of the pulse transmission circuit after the relay R has dropped out
interrupted at contact r 2.

The reversing selector is triggered by
Placing the handset on the calling part 50 second winding has a common tap point. takers. This has the advantage that the otherwise relay C between these relay switches to drop. Depending on this, the required intermediate paper layer for both windings, the holding circuits of the relays R, K, U and H can be omitted. In addition, that has broken in series with the. As a result, the test auxiliary relay via test relays is also activated after the c-arm of the selector has picked up, as is the marking current relay P due to the high series resistance of the second circuits via the d-wire during the home run of the
Reversing selector interrupted. The home run of the
Selector relay, which is also dependent on the drop in occupancy relay C, is for the sake of clarity
also not shown because of.

19, 20 show a direction selector for ten directions and an eleventh direction at the end of the

Winding of the test relay safe fault current in the spinning test circuit, which runs over the d-arm of the selector.

The marker relay K is located with two windings switched in opposite directions on the contact bank side of the rf arm of the selector and controls the test circuit via the c arm through a normally open contact.

Contact bank to which the voter overflows when on the marking steps behind directions without

in the desired line group of the other Rieh overflow to the. KPI channels on which the no exit is free. The marking path must be stopped over this latter 65 voter the full code must then be sent out, which is why relays are not thrown off because the test Direction is also called the key figure path. relay via the normally open contact of the marker relay Must hold some of the achievable by the direction selector. This is indicated by appropriate di-directions can, however, be excluded from the dimensioning of a bridge circuit in the test circuit that when all exits are busy, the dialer reaches 70, which will be explained in more detail later.

1,000

The direction selector shown runs in all directions, with the exception of directions 1 and 3, over to the code path under spin registration when all lines of the bundle marked are busy. In directions 1 and 3, after spinning registration, the selector stops on the marking step following the spinning step. The calling subscriber receives a busy signal.

Let us now consider the case that direction 2 "Rtg2" has been marked by the marking selector of the direction selector. The Wählerarm wr is therefore to step 2. The direction selector then passes to and through first moves without checking the trunk group the direction 1. As soon as it arrives on the marking step w2 which the Markierwählers is wired to step 2, the Markierrelais K is energized:

+, Kl, Gill, wr (2), m2, d-hxva, WiI, -.

In this circuit, the rectifier GLIl has the task of preventing the pull-in delay that would occur without this rectifier by balancing the voltage induced in the winding KIl via rectifier GL 2 (in the forward direction ) and the arm of the selector relay wr (2). Relay K maintains its own contact and the high-resistance Wi2:

+, Kl, k2, Wi2, -.

The test circuit via the c-arm is now prepared by closing contact k 1 . The voter continues to run and looks for a free line in the bundle of direction 2.If he finds one, the test relay P responds:

+, el, d2, kl, GLa, GLb, WiZ, Pll, Pl, c- arm, -.

Relay / ³ stops the voter. The low-resistance auxiliary test relay PH is switched via contact /; 2 in parallel to the high-resistance winding P II and the high-resistance resistor Wi 3. It also responds and then stays in series with the low-resistance winding P I via its own contact, since relay D drops out after the selector is shut down and the original test circuit interrupts at contact d2.

If the voter does not find a free line in the bundle Rtg2, the voter continues to spin step dd2. If this step is exceeded, the drive relay DD2 responds via the test circuit :

+, cl, d2, kl, GLa, GLb, Wi3, Pll, Pl, c-arm, dd2, DD2, -.

The relay DD 2 has such a high resistance that the test relay P has fault current. The voter therefore continues to run. As soon as it reaches the marking position m 3, a counter-winding Kl I of the marking relay is switched on:

+, Kl, KIl, GL3, m3, d-Krra, WiI, -.

The rectifier GL 2, which is in series with the switching arm wr (2) and the rectifier GLIl parallel to the winding Kl I, prevents a short circuit for winding KIl through its blocking direction, so that this is fully effective and the relay K by counter-excitation to drop brings. Following this, the residual excitation of the relay K _1, which remains via the circuit described above after the contact k 2 has been opened , must be below the fault current limit.

The individual steps of the selector relay wr (1) to wr (10) or the marking steps ml to m 10 of the selector's contact bank d directly connected to them are decoupled from one another by the rectifiers GLl to GLlO. This saves you a second arm of the WR selector relay. Relay K interrupts the test circuit on contact arm k 1 via the c-arm. The voter continues to run and now runs over the trunk group of the other directions without checking, until he comes to step m 11; Here the marker relay K is re-energized via the rf arm:

+, Kl, mil, d-Arrn, WiI, -,

Relay K binds itself via its own contact and switches the test circuit through again via the c-arm. The voter continues to run and now checks the code path. If he finds a free line, the test relay P responds via the c-arm of the voter and stops the voter. In parallel to relay P , the auxiliary test relay PH also responds. If the voter does not find a free line, he continues to the marking position m 12. While he is passing the spin step ddk before this marking step, the spin relay DDk is energized via the c-arm of the voter and the registration takes place in the same way as above for the direction Rtg 2 described. The following test circuit is closed on the marking step m 12:

+, el, d2, kl, GLa, GLb, Wi3, Pill, ml2, d-Κτνα, WiI, -.

Relay P responds and stops the voter. Relay PH, which is connected in series with winding PII and parallel to resistor Wi3 , has fault current in this circuit. The calling subscriber receives a busy signal, he hangs up his receiver and thereby triggers the direction selector including the marker dial.

Let us now consider the case that direction 3 has been marked by the marking selector WR , from which the direction selector does not overflow onto the code path. Correspondingly, the selector arm wr is in position 3. The direction selector then starts up and, without being able to check, passes over the trunk groups of the directions Rtg 1 and Rtg2. As soon as the direction selector overflows the marking step m 3 indicated by the marking selector, the marking relay K responds:

+, Kl, GLU, wr (3), m3, d-Krm, WiI, -.

Relay content is via its own contact. The voter continues to run and checks the bundle of direction 3. If he finds a free line, the relays P and PH respond via the c-arm of the voter. Relay P stops the voter. Relay PH switches on the pressure magnet. If the voter does not find a free line, he continues to run until the end of the bundle. As soon as he passes the spin step dd 3, the spin registration relay DD 3 responds via the c-arm, as already described. At the marking step m 4, the test relay P is excited via the d-arm:

+, el, d2, kl, GLa, GLb, Wi3, Pill, GL13, W4, d-arm, WiI, ■ -.

The auxiliary test relay PH connected in parallel to the resistor Wi 3 via contact p2 in series with the winding P III has fault current in this circuit. By appropriately dimensioning the bridge consisting of the relay windings of the relays K, P, PH, the resistors WiI, Wi2 and Wi3

as well as the rectifiers GLa, GLb, GL 4 and GL 13 is prevented that the counter-winding K II of the marker relay can become effective, whereby the test circuit at contact k 1 would open, the relay P would drop out and the selector would continue to rotate. The bridge circuit is shown in detail in FIG. The resistance values of the relay windings and the resistors are dimensioned so that there is a positive potential at branch point χ

Marker arm and a winding on the contact bank side of the test arm. The test circuit is controlled by a normally open contact on the marker relay. The windings K II and KIII of the marker relay are connected in opposite directions to the winding K I. To identify a direction without overflow into the code path, the marking step in front of the code direction is connected to the relevant step of the selector relay via a rectifier and through

the branch point y arises. As a result, io blocks excitation of two windings in the opposite direction

the rectifier GL 4 prevents the current through the counter-marker relay from responding,

winding K II. The rectifiers GL 12 and GL 13 It is assumed that the marker selector of the

serve for the mutual decoupling of the steps direction selector marked direction 1. Of the

of selector relay wr (2) and wr (4) or the switching arm wr with them is accordingly in position 1.

connected marking steps m2 and w4. The mar- 15 As soon as the direction selector is set, the with

kierrelais is thus held on via its winding KI and its own contact k 2 . The resistance values of the bridge circuit are z. B. dimensioned so that with an operating voltage of 60 V at point χ a voltage of -12 V and at point y a voltage of ■ -20 V occurs.

The calling subscriber receives a busy signal in this position. He hangs up his phone and takes the initiative the triggering of the direction selector including the marking selector.

The "flying" spin registration shown in FIGS. 19, 20 can be improved by saving special spin steps and the registration is done on steps which

has reached the wired marking position m 1 of position 1 of the selector relay, the marking relay is energized via the d-arm:

+, Kl, wr (1), ml, d-arm, WiI, -.

Relay K stays in the following circuit: +, KI, k2, KH, -.

-In this circuit, the relay KH also responds. Relay KH prepares through his. Contact khl a circuit for the counter-winding K III via the c- arm, in addition, via its contact kh 2, the spin-registration via the d-arm. By closing the contact k 1, the test circuit is

gg g

are wired with lines. Such an arrangement 30 has been prepared. The voter now checks FIGS. 21 and 22 when he is shown. The Riehlauf shown here off the line bundle Rtgl . Does he find one

h free line, test relay P, which shuts down the selector, and test auxiliary relay PH speak in parallel

The option selector gives access to ten directions and a key figure path at the end of the contact bank. The direction selector is different from
16, 18 also in that the voter in 35 of the voters does not bundle any free line in the line spinning case over all remaining directions, so he runs to the marking position m 2. Here continues. For directions for which an overflow
is provided in the key figure path, then takes place
an examination of the key figure path. For directions
for which no overflow is provided, the 40th runs
Voters also across the key figure path, without
to consider. The voter is then only on the last

which switches on the pressure magnet. Finds

the reverse winding K III is switched on via the c-arm:

+, el, d2, GL, Pll, PI, kl, c-arm, w2, khl, KIII, -.

Steps either via a special shutdown circuit or via one controlled by the selector shaft

The test relay P has fault current in this circuit. Relay K drops out. This also interrupts the holding circuit of the auxiliary relay KH at contact k 2 . Of the

Cam contact stopped. The contact k1 also disconnects the spinning test circuit. Re-

steps, the voter is not stopped. To identify a spinning case that only opens one step of the next bundle in the (f-contact bank may come to registration if a

lais KH drops out somewhat after relay K , in such a way that relay K has already switched the test circuit from the state "testing" to "not testing" before relay KH drops out. This way it is now on

If a special spin step is to be saved, 50 is the spin step dd 1 and the associated with it

the following steps of the spin registration relay DD 1 excited via the d-arm:

+, kh2, kZ, d-arm, ddl, DDl, -.

Any subsequent steps can be combined with the spin step ddl , as a result of which the registration pulse is of different lengths. The voter continues through these steps and the remaining directions until he clicks on the marker becomes the marker relay

In addition to the marking relay K , an auxiliary marking relay KH is required. The registration takes place when the marking relay has already switched back from the state »checking« to »not checking«, but the auxiliary relay has not yet dropped out, via one or more successive steps of the marking arm. This makes it possible to make the registration pulse of different lengths. It can optionally be limited to the duration of the overflow time of

one, two or even more steps (a 60 step m 11 comes. Here step = 7 ms at 140 steps per second one switched on again:

Motor selector) and thus the relay type for the, ^ _{71 A ΛΛ} , _Ä _

τ \ ι j -ι -ι · ο ι τ- »· A-Lr ii · ■ ι +, / CIl, mil, d-arm,

Rotating relay can be adapted. The fall time of the

Auxiliary relay must on the one hand be longer than the Re- The marker relay holds itself over its winding / CI

registration pulse, on the other hand shorter than the overflow 65 and own contact k2 in series with the auxiliary

time over the smallest cable bundle. The radio relays KH. The test circuit is again through contact k 1

tion of the auxiliary relay during the free selection time can be prepared. The ongoing voter now checks the

also from another relay in the circuit. If he doesn't find a free line here,

Hch to be taken over. The marking relay has so it runs on the marking step m 12. Here is

two windings on the contact bank side of the 70 via the switching arm c the counter winding K III of the

Marking relay switched on. The test relay P has fault current in this circuit. Relay K drops out, and then relay KH drops out with a delay. The selector now runs further on the spin step ddk and the following steps wired to it. Here, the spin registration relay DDk is switched on during the fall time of the auxiliary relay KH the selector reaches step m 13, the marker relay is switched on again via the d-arm (dashed circuits)

+, Kl, m 13, d-arm, WiI, -.

Relays K and KH hold. The P-check circuit is prepared again by contact k 1, so that the voter can now check on step 111:

+, el, d2, GL, Pll, PI, kl, c-arm (111), Wi2, - .

20th

Relay / ⁵ // has fault current. The voter is shut down; the calling subscriber receives a busy signal, he hangs up and thereby initiates the triggering of the direction selector including the marker dialer.

Instead of the shutdown circuit of the voter on the last step of the voter, a nook contact nk controlled by the voter shaft can, as indicated by dotted lines, energize the two field magnets FM1, FM2 of the voter and thereby stop the voter.

Let us now consider the case that the marker selector marks a direction from which the selector should continue to run but not check on the code path. In the figures, the directions Rt g 2, .Rig · 3, J ^ ig-10 are provided as such directions. The marking positions in front of these directions are connected via rectifiers GL 2, GL 3, GL10 with the marking position mil in front of the code path.

Assume that the marker has marked direction 2. The selector arm is therefore in position 2. As soon as the following direction selector has reached the marking position m2, the marking relay K responds via the d-arm:

45 +, KI, wr (2), «2, d-arm, WiI, -.

Relay KI stays in series with the auxiliary relay KH. The voter can now look for a free line via the c-arm in direction 2. If it does not find a free line, it continues to run after the marking position m 3. Here, the counter- winding KIII is switched on via the c-arm:

+, el, df 2, GL, Pll, PI, kl, c-arm, w3, kkl, Kill, -, ....

55

Relay P. Has fault current. Relay K drops out. Then relay KH drops out with a delay. The selector continues to run on the rotary step dd2, via which the registration relay DD2 is excited:

+, kh2, k3, d-arm, dd2, DD2, -.

The voter now runs through the bundles of directions 3 to 10 without checking. In order to prevent the voter from checking via the code number path when the direction selector reaches the marking position mil in front of the code number path, the following two circuits are formed for winding KI and counter winding K II, which are closed simultaneously by the d-arm of the selector:

a) +, KII, mil, d-arm, WiI, -,

b) +, KI, wr (2), GL2, - line s _f GLlO, mil, d-arm, WiI, -.

This prevents the marking relay K from responding. As a result, the test circuit is not closed via the c-arm. The voter continues to run until the voter, as described, is stopped either after relay K has been activated in step w * 13 with the test relay in step 111 or by a cam contact. The calling subscriber receives a busy signal, he hangs up his receiver, which triggers the direction selector including the marker dial.

Claims (49)

Claims = 1. Circuit arrangement for reversing or direction selector in telecommunications, in particular telephone systems, in which the lines of a bundle of lines in one direction in the contact bank of the selector, distributed between the. Line bundles can be arranged in other directions and the voter adjusts himself to a free line of the line bundle to be tested without stopping existing line bundles, characterized in that in each case a test arm (c) of the voter checks the individual lines of the line bundle while without switching this test circuit via a further auxiliary arm (d) of the selector and its contact bank wired with the direction-determining contacts, a marker relay (K), which is only influenced by the position of the selector, identifies the beginning and end of the bundle of wires to be tested in the first test circuit. 2. Circuit arrangement according to claim 1, characterized in that the marking of the beginning and end of the line bundle to be tested is recorded by the marker relay (K) during the overflow time of the selector via the marking positions between the line bundles without stopping the selector. 3. Circuit arrangement according to claim 2, characterized in that there is only one marking step between the last line of a bundle and the first line of the following bundle, which is utilized via the one selector (d) for marking the bundle. 4. Circuit arrangement: according to claim 3, characterized in that the marking steps are also used as DuTch rotation positions and the shutdown via the test arm (c) of the selector and the output of a registration pulse via a further auxiliary arm (d) takes place (Fig. 1, 2 and 5, 9) or vice versa (Fig. 3, 4 and 13, 14). ': 5. Circuit arrangement according to claim 4, characterized in that the test relay of the selector checks on the spin steps via its c-arm for a capacitor (Cp 4) whose charging or discharging current is sufficient to operate the test relay, but not to operate the auxiliary test relay connected in parallel . (Figures 5, 9). 6. Circuit arrangement according to claim 5, characterized in that a high-ohmic resistor (Wi4c) is connected to the voltage parallel to the capacitor lying against ground, over which the test relay holds itself after the capacitor surge has subsided .:. · '. 709 546/186 7. Circuit arrangement according to claim 1, characterized in that the marker relay for the purpose of marking the beginning and end of a bundle to be tested using appropriate marking positions or by locally generated current surges depending on the drop in the reversal criterion is stimulated, then remains locally independent of the incentive circle and via counter-windings, Short circuits or interruptions in the holding circuit, which also have corresponding Marking positions of the voter are controlled, is thrown off. 8. Circuit arrangement according to claim 7, characterized in that the marker relay the Test circuit of the voter by working or normally closed contacts or a combination of working and NC contacts controls. 9. Circuit arrangement according to claim 7, characterized in that the stimulus windings of the marker relay on the d-arm of the selector, the counter-windings or short-circuit circuits of the marker relay on the. d or c arm of the selector can be controlled. 10. Circuit arrangement according to claim 7, characterized in that the response of the Marking relay is prevented by having two windings on certain marking steps of the marking relay are excited in parallel or in series in opposite directions and the difference between the two Excitations result in fault current (Fig. 19, 20 and 21,22). 11. Circuit arrangement according to claim 7, characterized in that the connection of the marking steps on the rf bank of the selector with the switching points (on, off, DD) of the marker relay (K) for incentive, release or spin registration via contacts of the external direction identifying relay or the relays characterizing the individual reversing directions are connected. 12. Circuit arrangement according to claim 11, characterized in that multi-digit for evaluation Step relay code numbers are used (Fig. 13 and 14). 13. Circuit arrangement according to claim 11, characterized in that the connection of the Marking steps are carried out with the marking relay via one or more arms of a selector relay (Figures 19, 20 and 21, 22). 14. Circuit arrangement according to claim 9, characterized in that the stimulus and counter windings of the marker relay on the contact bank side and on the side of the d-arm of the Voter lie (Fig. 15 and 16, 18). 15. Circuit arrangement according to claim 9, characterized in that the stimulus and counter windings of the marker relay exclusively on the contact bank side of the rf arm of the selector lie, (Figs. 19, 20; 1, 2; 3, 4; 5, 9). 16. Circuit arrangement according to claim 14 for reversing selectors, which are set to a main direction after their occupancy and then reversed to another direction by the reversing criterion, characterized in that the identification of the reversal from the main direction to one of the internal directions by a single auxiliary relay ( R) takes place (Fig. 16, 18). 17. Circuit arrangement according to claim 16, characterized in that both the marker relay (K) and the auxiliary relay (R) control the test circuit of the selector in such a way that excitation of the auxiliary relay (R) and de-excitation of the marker relay (K) the state » Not reversing ”, on the other hand de-energizing the auxiliary relay and. De-energization of the marker relay indicates the status »reversing«. 18. Circuit arrangement according to claim 17, characterized in that the auxiliary relay (R) during the recording of the code via contacts (vl) of a control relay (V) and its own contact (rl) kept excited during the number current surge series, on the other hand after the arrival of numbers., which do not indicate a reversal of the selector, the auxiliary relay (H) controlled by switching arms (wrl, wrll) is kept energized. 19. Circuit arrangement according to claim 14, characterized in that in the contact bank of the selector line bundles for external (R ext a, R ext b) and internal directions (R int 6, R int 7) are combined into contact groups, the overflow of which the free selection time of the Voter does not exceed the series of numbers to be transmitted subsequently and then connected to these contact groups in bundles of further directions (R int 114 ... R int 117) via which terminals, e.g. B. Announcement services and the like., Can be achieved. 20. Circuit arrangement according to claim 19, characterized in that the reversal to the bundle of lines to the terminals is characterized by multi-digit, preferably three-digit codes (e.g. 114 ... 117) and the first two digits of the codes by a follower (WRl) , the last digit of the key figures is recorded by a second follower (WR 2) and the evaluation of the key figures (drop in relay R ) is ensured by a step relay (U) that monitors the value of the first two digits (e.g. "11") will. 21. Circuit arrangement according to claim 20, characterized in that the step relay (U) by the first digit of the code ("1") via the first. Follower (WR 1) in the first stage excites a holding circuit of the auxiliary relay via a contact (1 na) first stage, contact (lub) second stage and its own contact (r7) of the auxiliary relay, which only depends on after excitation of the stage relay in the second stage the value of the second digit of the key figure is interrupted in preparation, but only finally via the second. Follower (wrll) is interrupted when the third digit of the code (»5«) is added. 22. Circuit arrangement according to claim 14, characterized in that the marking of the internal directions determined by the codes in the marking bank (d) of the reversing selector via a contactless wiring of this bank with the contact banks of the switching arms (wrl, wrll) of the followers set by the codes (WRl, WRZ) takes place. 23. Circuit arrangement according to claim 14, characterized in that the shutdown of the reversing selector in the spin positions of the individual bundles via the c-arm of the selector, on the other hand the influencing of the spin-registration relay takes place via the d-arm of the selector. 24. Circuit arrangement according to claim 23, characterized in that the spin registration relay (DD ext) for the external Rieh- device in series with the pick-up winding of the marker relay (Kl) is excited via the d- arm of the selector, but the marker relay in this circuit has fault current. 25. Circuit arrangement according to claim 23, characterized in that the spin-registration relays of the internal directions are switched on via the d-arm of the selector through the holding earth for the marker relay. 26. Circuit arrangement according to claim 3 for reversing selectors, which are set according to their occupancy to a «main food and then reversed by the reversing criterion to a different direction, characterized in that in the spin positions of the selector via its d-arm each an additional winding of the test - and marker relays (Fill, if II) are excited, which interrupt the high-resistance test circuit and create a low-resistance response (k 4, p3) for the spin registration relay via the c-arm of the selector (Fig. 3, 4). 27. Circuit arrangement according to claim 26, characterized in that the excitation current surge for the spin registration relay is limited by the drop in the selector starting relay (D). 28. Circuit arrangement according to claim 7, characterized in that the marker relay (K) is already activated when the selector is occupied, regardless of a selector setting (Fig. S, 9). 29. Circuit arrangement according to claim 1 or 28, characterized in that the marker relay (K) also switches the drive of the selector from lower to higher speed when the test circuit running over the c-arm is switched from the state “testable” to “non-testable” vice versa. 30. Circuit arrangement according to claim 29, characterized in that between the bundle of lines in addition to the marking steps Braking steps, preferably a braking step, are inserted in the voter bank over which expediently in the d-bank of the voter the Durohidrehfalls the line bundle in front of it be registered. 4-5 31. Circuit arrangement according to claim 3, characterized in that for the purpose of sound reinforcement the voter bank with outgoing test and speech lines on the marking positions das Marikier relay has a longer response time than the test relay, but a shorter response time than that each step time of the voter owns. 32. Circuit arrangement according to claim 31, characterized in that the test relay according to its response a further influence of the marking relay on the marking steps on the d contact bank side prevented; z. B. short circuit (Fig. 11) or counter excitation (Fig. 12). 33. Circuit arrangement according to claim 30, characterized in that for the purpose of sonication of the marking steps with outgoing test and speech lines, the influencing of the test wire on the test arm side by the marking relay (at contact k 1) is rendered ineffective by the test relay (at contact /> 5) (Fig. 6). 34. Circuit arrangement according to claim 3, characterized in that after influencing the marker relay for the purpose of switching the test circuit from the state "non-testable" to "testable" a subsequent response of the test relay (F) via the c-arm of the selector by briefly interrupting the test circuit by means of a z. B. controlled by the selector shaft test time limit contact (mb) is prevented (Fig. 7, 8). 35. Circuit arrangement according to claims 1, 3 or 14, characterized in that the marker relay (K) located on the side of the d-arm, stimulated by a reversing indicator, is held locally and thrown off by a short circuit in a marking position in front of the bundle to be tested is, while in the case of spinning over the bundle to be tested in the next marking position of the selector, which at the same time forms the spinning position , is stimulated again via the d-arm and at the same time the test relay is coupled to the d-arm via a high resistance (WiS), responds via this (Fig. 13, 14). 36. Circuit arrangement according to claim 35, characterized in that, in the case of rotation, a low-resistance circuit for exciting a high-resistance rotation relay is established via the c-arm and the excited · marking relay (K) and the excited test relay · (F). 37. Circuit arrangement according to claims 1, 3 and 14 for direction selectors, which only adjust to this after marking a direction and, when all lines of the line bundle to be tested are occupied, overflow to a direction (code path) at the end of the contact bank, each with a special step for the spin registration and for the marking of the bundle to be tested in the selector contact bank, characterized in that the stimulus winding of the marking relay (KT) is switched on via the wiring between the contact bank of the marking selector and the marking step of the marking relay (KT) and the counter winding (K II) is connected to the Marking steps of the direction selector is switched on and is influenced via the d-arm parallel to the holding circuit of the marking relay via its stimulus winding (Fig. 19, 20). 38. Circuit arrangement according to claim 37, characterized in that the steps of the selector relay for the purpose of preventing incorrect influencing of the counter-winding of the marker relay by the rectifier (GLl, GL 2 to GLlO) and for the purpose of preventing incorrect influencing of the test relay (FIII) by the rectifier (GL 12 and GL 13) are decoupled. 39. Circuit arrangement according to claim 37, characterized in that the slip-through relays (DDl, DD2 ...) when all lines of the bundle to be tested are occupied when driving over the spinning positions before the marking steps are energized via the c-arm of the selector without the To make the voter's test relay (F) respond and to shut down the voter. 40. Circuit arrangement according to claim 37, characterized in that a step (m 12) in the d-bank of the selector after the spin position (ddk) of the line bundle (code path) lying at the end of the contact bank is connected to the test relay (F) and this in this circuit via an additional winding (FIII) to respond to shutdown the selector. 41. Circuit arrangement according to claims 6, 26 or 40, characterized in that the auxiliary test relay (JPH) which switches on the pressure magnet for the speaking arms of the selector and which is connected in parallel to the test relay has fault current in the test circuits running over the test arm of the selector in spinning positions. 42. Circuit arrangement according to claim 40, characterized in that a bridge at the marking steps (e.g. w 4) is formed after these bundles for the line bundle in the direction from which the selector does not overflow onto the code path when all lines are busy, One pair of bridge branches of which is formed by the call circuit, which consists on the one hand of the test relays (P, PH) and on the other hand of a resistor (WiV) coupled via the d-arm and a rectifier (GL 13), while the other pair is formed by bridge branches through the holding circuit of the marker relay, which on the one hand contains a winding of the marker relay (KI) and on the other hand a resistor (Wi2) , and the bridge diagonal between the two pairs of bridge branches the reverse winding of the marker relay (K II) and a rectifier (GL 4) contains. 43. Circuit arrangement according to claim 42, characterized in that the bridge branches are dimensioned so that a potential difference occurs at the diagonal points (x, y) of the bridge in the reverse direction of the rectifier (e.g. GL 4) located in front of the counter-winding the reverse winding (K II) makes ineffective. 44. Circuit arrangement according to claims 1, 3 or 14 for direction selectors which only adjust to this after marking a direction and, when all lines of the bundle to be tested are occupied, overflow to a direction (code path) at the end of the contact bank, characterized in that, that between the wire bundles connected to outgoing test and speech lines there is only one marking position via which the marker relay is activated in the d-bank and triggered via the c-bank by a counter-winding and via the twisted position in the ίί-bank, which is between the steps are Markierschritten on which are wired to outgoing lines is energized the respective spin relay during cranking by means of a case controlled by the Markierrelais (K) auxiliary relay (KH). 45. Circuit arrangement according to claim 44, characterized in that the excitation duration the spin registration relay by combining several consecutive spin steps can be changed in the voter's d! 46. Circuit arrangement according to claim 44, characterized in that for individual directions, for. B. Direction 2, 3, 10, in the ci-bank of the selector circuits via rectifiers (GL2, GL3, GL10) are formed, which allow an overflow from these bundles on the code path, but prevent a check in the code bundle. 47. Circuit arrangement according to claim 46, characterized in that in the iZ bank of the selector to the marking position (m 11) in front of the code ^{path 1} on the one hand an additional counter-winding (KII) of the marking relay is connected to the stimulus winding (IC I) and on the other hand the Incentive winding (K I) is coupled to this step after setting the marker selector to a wiring between the direction selector and marker selector via rectifiers (e.g. GL2, GL3, GL10) , which are each switched on between a wiring and this marking step. 48. Circuit arrangement according to claim 44, characterized in that the selector in the spin case always rotates to the end of the contact bank and here through a special test circuit or is stopped by cam-controlled switching means. 49. Circuit arrangement according to claims 1, 2 and 3, characterized in that the marker relays not individually for each selector circuit, but through a central setting device shared for a group of voters and the multiplexed Contact banks on the marking steps are not electrically separated from one another, as is the case with the individual control of each selector need to become. Considered publications: German Patent Specifications No. 692 572, 619 336. In addition 5 sheets of drawings © 709546/186 5.57