DE1028167B - Circuit arrangement for multi-use cross-coil coordinate dialer with two coupling stages in telephone systems - Google Patents

Description

The invention relates to coordinate selector, in which by energizing two intersecting coils on the Crossing point of these two coils made of magnetic material existing coupling contacts are operated, that bring about the interconnection of an incoming line with an outgoing line (cross-coil coordinates voter).

The object on which the invention is based is to provide such cross-coil coordinate selectors in a simple manner and using as little control means as possible as a voter over which connections can be produced in different numbered traffic directions (group selector).

An immediate, optional setting of a cross-coil coordinate selector by power surges on the part of the calling station is not in the peculiarity of these voters or only possible with a great deal of auxiliary switching equipment. As the most economical arrangement it has been shown that the optional setting of such a multiple-use coordinate selector takes place by means of a voter's own setting device. This setting device must briefly be assigned to everyone Selector input switched on and switched off again after switching through from the output so that it is available for every incoming call on a different input.

The connection of a setting device to each selector input and the disconnection of this could be done by using a few relays for each input. That is uneconomical.

The invention shows another, more economical way, which is characterized by the fact that the voters own Setting device connected to each calling input via input coupling contacts of the selector will. This is achieved in that the coupling contact rows at the intersections in both coupling stages horizontal and vertical selector coils are divided that over a number of the first coupling stage each input has its own coupling contacts with a selector's own setting device when it is assigned is connected, after their control one of the then selected traffic direction own selector coil in the other rows of coupling contacts to interconnect the input with a free outgoing line prepared one of the intermediate lines between the two switching stages, and that this interconnection after energizing the selector coils assigned to this intermediate line in the two coupling stages will.

Since a selector coil is required for each entrance and for each traffic clearing, it is used for coupling the setting device, d. H. to operate the coupling contacts in the control contact row only required for all entrances and all traffic directions one each

Circuit arrangement

for multiple uses

Cross-coil coordinate selector with two coupling stages in telephone systems

Applicant:
Siemens & Halske Aktiengesellschaft,

Berlin and Munich,
Munich 2, Witteisbacherplatz 2

Kurt Laas, Munich,
has been named as the inventor

Provide input-own and the direction-specific selector coil crossing selector coil. For no entrance special relays need to be provided for connecting and disconnecting the setting device. According to a further embodiment of the invention, a call relay common to all inputs closes the Excitation circuits for a number of test relays corresponding to the number of inputs, whereby the occupied one Test relay assigned to the input activates the input selector coil and the row of control coupling contacts influencing second selector coil causes.

After marking the desired traffic direction and switching on the selector coil assigned to it set the selector test relays the free intermediate lines in the two-stage coordinate selector and then the free outgoing line to be used, accessible via one of these intermediate lines, is fixed.

According to a further embodiment of the invention, separate test purposes are not required for the various test purposes Test relay to be used. The same test relays can be used to determine an occupied input, a free intermediate line and also a free outgoing line of the selected traffic direction are used will.

The number of test relays can correspond to the number of inputs in the selector. Is the number of intermediate lines between the first and the second coupling stage is greater than the number of inputs (e.g. nineteen for ten entrances and ten accessible traffic directions), the intermediate lines are divided into groups. First the intermediate

709 960/123

3 4

lines of the first group and then dia between Koppslkontaktreihen, z. B. nineteen, become the enticements the next group checked, bonds made.

If the number of intermediate lines is in the range of The tested group of intermediate lines used to connect the setting device is less than the row of coupling contacts is dashed to the left of the vertical ^; Number of inputs so can be as shown in the invention further 5 dotted line. It is marked with KSt l / E in the shows that a coupling stage KSt 1 that is not required for this last test or with KSt 2 / E in the coupling stage test relays are used to ensure that all KSt 2 are blocked. The coupling contacts carry the outgoing drawing kl to AlO or kr 1 to kr 10 that can be reached via free intermediate lines. Connection lines for this busy case are recorded and a busy signal is transmitted to each horizontal selector coil X of the first coupler calling station, ίο stage KStI is assigned to an input, for example further details of the invention are from the after- the selector coil Xl the input El. This voter can be found in the description below. coil Xl is traversed by the current, it is shown at all by In the drawings, an embodiment dsr the dotted line starting from Xl specific invention is shown. It shows coupling points of the twenty vertical coupling contact fig. 1 prepared a coupling for the exemplary embodiment of the invention, not only in the cross-coil selector lying on the basis of the basic part, KSt 1 / E, but also in the part KSt l / V. Via FIG. 2, a transmission at the outgoing end of a coupling part KStl / V , the input El can be connected to each of the connecting lines leading from a group selector to nineteen intermediate lines ZLl to ZL 19 (input El) and some contacts of an optional combination.

nation-applying relay of a register, 20 Each horizontal selector coil Xr identifies in Fig. 3 two inputs in the multiple use current passage one traffic direction, so the voter coordinate dialers and switching means of the coupling stages XrI the traffic direction VRl and XrIQ the KSt l / E and KSt 2 / E, via which after a call to a traffic direction VR 10. Each of these selector inputs also switched on the setting device and spooled, e.g. B. XrIO, prepares a coupling in both parts of the coupling control, 25 field KSt 2. So when example Fig. 4 the coupling stage KSt l / V, via which inputs the traffic direction VR 10 assigned to free intermediate lines are connected, selector coil Xr 10 receives power, a coupling not only Fig. 5 the coupling stage KSt 2 / A, via which intermediate on the coupling contact krlO of the control coupling contact row lines with free, in a selected traffic direction KSt 2 / E, but also coupled to the coupling contacts of the outgoing connection lines, 30 nineteen rows of the coupling stage KSt 2 / A are prepared. Fig. 6 the circuit of the test relay and control relay In broad outline, the production of a Vers and the vertical selector coils Ya of the intermediate connection of the input El with a free line of the lines in the coupling stage KSt2 / A is wrapped. Traffic direction VR 10 as follows:;

Fig. 4 follows on to the right of Fig. 3, Fig. 5 After the input El is assigned, its selector closes at the bottom of Fig. 4 and Fig. 6 is switched on at the bottom of the coil Xl and thus a coupling through Fig. 5 at. the coupling contacts kl, kvljl to Ab 1/19, since nineteen. Only the intermediate lines ZL required for understanding the invention have been prepared. Circuits and switching means are illustrated. After switching on the selector coil Y is a selector It should be noted that windings of relays and their own setting device with the input El via contacts as well as cooperating selector coils, 40 connected to the coupling contact set kl , z. B. Xl with YvI to YwIO and XrIO with YaI to YaIO, after controlling the setting device are shown accordingly in several sheets of drawing. the number of the desired traffic direction VR 10

becomes the horizontal one assigned to this traffic direction

¹ ^ " voter coil Xr 10 energized and furthermore the vertical voter

A coordinate coil Yr that can be used multiple times is shown. At the intersection of the two dotted lines emanating from these coil ■ selector with two coupling stages KSt 1 and KSt 2. A so-called cross set ArIO is actuated for each coupling stage, via which control processes reel selector is used. be wrapped.

With these cross-coil selectors, the group is determined by the excitation of the selector coil XrIO in the part of a horizontal selector coil X and one of these 50 KSt 2 / A of the coupling stage KSt 2 , intersecting vertical selector coil Y at the intersection via which the connection is to be established. These two coils actuate a set of contact springs. As already mentioned, there are nineteen intermediate lines whose springs are made of magnetic material. Everyone accepted. Via each of these intermediate lines ZLl coupling contact of the first coupling stage, the coupling to ZL 19 is a line from each of the ten line bundles VR1 line that can be reached via an incoming line with an intermediate coordinate selector. Every coupling contact of the second voter level up to VR 10 can be reached. Thus, via the interconnection this intermediate line can be connected to an outgoing line in the desired line ZL 1 connections with the connecting lines th direction together FLl of the directions VR1 to VR 10, via the intermediate Each contact spring pair of a set is in line ZX 2 connections with the Connecting lines a protective tube. The contact closure between the 60 VL 2 in the directions VR 1 to VR 10, etc. produced by springs of each pair bringing about the magnetic field.

When the two intersecting voters are excited, after detection of a free connecting line, coils are generated in an oxygen-free atmosphere. (e.g. VL9) of the selected traffic direction takes place when it is assumed that the coordinate selector ten independent intermediate line ZL 9 and switching on the voter incoming lines, ten inputs El to ElO, spool Yv9 (coupling stage KSt IjV) and Ya9 ( switching stage is used. KSt 2 / A), since the selector coils Xl and XRIO from the electrical the coupling of both contact rows KStI switching stages are traversed, the actuation of the coupling contacts and KST2 are divided according to the invention. A coupling kvl / 9 and ka9 / 10.

contact row is used to connect a selector's own After switching the changeover contact el (there are

Setting device to the inputs. Using the other 70, more than one of the number of wires to be switched

5 6

speaking contacts are available) the input El with code number is excited

the connecting line VL 9 for traffic direction VR 10 * ,

coupled: ₂ a, B, -, -

1. El, el, kvlß, ZLV, £ «9/10, FI9 der Fi? 10. . 3 - ^ ^ ic '-

⁵ 4 c -

The two holding coils iJi> 9 and iia9 are under c V ' q

Power and maintain the connection. The voters- _fi ARC

coils Xl, Y, Yv9, XrIO, Yr, Ya9 are de-energized. _η _ ^ ' _Q ' _D

The coupling at the coupling points kl and Ar 10 is ο '' r 'η

canceled. ¹⁰ g A - CD

The coupling contact rows kl to k 10, kwl to Aze; 10 of the _n / T r 'r' η

Coupling stages KSi l / E or KSt2jE and fo> 1/1 to kv 10/1, '''

ΑλΙ / 1 to Äal / 10 etc. of the coupling stages KSt l / V or Since the code number 0 is selected, the contacts close

KSt2! A can both vertically, as shown, as 30 ", 31a, 32b, 33c, 34ά \ contact 35a opens. After that also be arranged horizontally. ¹ S Close the open con

clocks 36 v, 37 v, which are delayed by a control relay

Fig. 2 to 6 anchor drop are actuated, the test speaks first

relay Pl on:

As in the description of FIG. 1, it is assumed that c "i 7 λ q

men that the input El is occupied and a connection 20 6. + (Fig. 6), 2Br, IPl, 4 (Fig. 3),

in the traffic direction VR 10 6s 1, 8el, 10

^{36 30 G1 ZÄ}

g g g

target. / _Fi 2) ³⁶ⁱ⁾ '"""'^{30ä> Gm1} '

The two speech wires of each input are in the ^5- 37 ^ _; 33 c, Gw3, 31a, 39, -

Idle state of the coordinate selector through a too

P-relay for other purposes on operational 25 In this circuit, relay Zh has monitored fault current, readiness. It is z. B. the test relay Pl Should a connection in a different traffic direction,

via the following route to the speech wires of the entrance El: e.g. VR 2 or Fi? 8, then in the register, apart from the relays B and D, only the re-

9 _ (~ Ρΐσ fti 1 2 <; 1 ^ r T Pi 4 (¥ \ p 1 \ '7cl, 9 i _a j _s ^ 4 _{0 (} j _er (j _as relay C energized. Closed is then de-

£. ( ng.dj, 1, * ii, or, li-x, _l g. o _h ^ _g ^^ ^, ^ ^^ ^ _{contact 3Qii or the contact 33c} _ _{the he} _

pjg_ 2, ... excitation circuit for the relay Pl then only runs over

wire 9 or over wire 10.

If an earth fault occurs on one of the speech wires 9 or 10, relay S1 (Fig. 6) responds:

on, the test relay Pl responds. A holding circuit ₇ ,,. _f . _{τςι 9} , 9 ^ 1 ττ pi _

via the winding HPl, 35 "*"''''' ^p ''' is not applied to contact 23p 1

closed because the call relay Rl is not energized and the contact 2s 1 (Fig. 6) opens relay 51 is in a

Contact 24r is not closed. With the contact holding circuit:

llpl the following circuit is established: g , γ- ^, ^ q ^ ^ _g ^ jj _jj _

3. + (Fig. 6), Ar, 12r, 13fh, Uu, tipi, YaI, -. _ .. ... "'. '. ^ ',. ,. _. ,,. _A

^{x b} "'''■ f 40 relay Sl also opens the operational readiness

The alarm relay Ar responds. The selector coil YaI shaft all inputs monitoring circuits to the

has fault current. The contacts ISpI and 16ar open the contacts 5sl, 6sl (with input £ 1), 42sl, 43sl (with

when the transmission UeI is assigned via wire 17 to input £ 10). It should be mentioned here that the relay Sl

closing circuit. as well as other relays are multi-contact relays, or

If the transmission UeI from an upstream 45 there are z. B. two relays energized at the same time when one

Connection device occupied, a failure relay does not close with the required number of contacts

The relay shown is contact 22cMß. Can be loaded by the connection. By closing the contacts

of the plus potential to the assignment core 17 speaks in 44sl, 45sl to 46sl, 47sl is the connection of all

Coordinate selector the common call relay R (Fig. 3) inputs to the selector's own setting device.

an: 50 rides.

15 ^, 1 Since the coordinate selector occupies input E1

⁴ · + (Fig-2), 22cue, 17 (Fig. 3), 18cl, ----, only this is provided with the setting device

^ar bound. This is caused by the relay S1. With the

' _# Contact 48si becomes the vertical selector coil Y der

GrI, 20sl, Ii ?, - 55 coupling stage KStIjE switched on. The horizontal one

Selector coil Xl of input El receives power: relay i? lies in a holding circuit:

Hi? 9. +, 5Or, 51sl, Slfh, S3plQ, chain of contacts

5. +, 25sl, 26r, -, -. the relays P9 - P2, 54 /> l, Xl, -. Ko 2, 27 _6o

By contact 28 r (Fig. 6), the windings Da are now the selector coils Y and Xl under current

of all test relays Pl to PlO are from the negative pole of the battery, close those at the intersection of these two

switched to the positive pole. The relay Pl responds to coils (see dotted lines in Fig. 1) arranged

if in the transmission UeI or in one of these coupling contacts 55 & 1, 56Al, 57Al and 58ßl (Fig. 3).

switched registers the desired traffic 65 switching processes via the coupling contacts 55Al and 58Al

direction VR 10 corresponding series of current impulses or only in the further course of the connection establishment

Elective combination has been included. effective. Via the coupling contacts 56Ä1 and 57 & 1 are

Four relays A, B, C, D, not shown, which, for example, the evaluation relays Al, Bl, Cl, Dl of the setting

are arranged in a register, when the direction is selected, they are influenced by the UeI in the transmission

Key figures 1 to 0 excited as follows: 70 (Fig. 2) created dialing combination brought. There on

7 8

all two input wires 9 and 10 negative potential to the shown intermediate lines ZLl and ZLlO free, so is, both relays Al and Cl respond: if the test relays Pl and PlO respond:

10. (Fig. 2) -, Zh, GuI, 30 «, ..., Z6v, ..., 9, (Fig. 3) 18. + (Fig. 6), 28r, I Pl, 107g, 108 (Fig. 5), 109m, 110, 7cl, 44sl, S6A1, GOf.h, 61f, IAl, +. ₅ shark -

11. (Fig. 2) -, 39, 31a, Gm3, 33c, ..., 37 », ..., 10, 111 (Fig 4) HvI '~' (Fig. 3) 8cl, 45sl, S7kl, 62fh, 63f, ICl, +. ^vs '"

19. + (Fig. 6), 28? -, IPlO, 112m, 114g, 115 (Fig. 5), The holding windings II of the selector relays A1 and C1 Ha 10, -

are connected via the contacts 48sl and 64 # 1 or 65cl io iifi / F '4Ί Ή 10' ~ "'

switched. There are also contacts in the right * S- I>

HvI and Hal, HvIO and # «10 shown at the bottom in FIG. 3 and at the bottom right in FIG. 6 are the holding coils

Contact pyramids folded down. of the intermediate lines ZL1 or ZL 10, which are the coupling of the rest position of the setting device after switching off the various, during the

capacitor KoI charged: 15 connection setup energized voter

12. +, 66 / ·, KoI, 67f, 68cl, 69 «1.70, -. ^{s Maintain} P ^{ules x and Y.}

The P relay applied to busy intermediate lines

The relay F (Fig. 6) is switched on: are short-circuited because of the transmissions with

F ₁ 74 these intermediate lines connected inputs plus

13. +, 72c 1, 73A2,. - 20 potential is switched on, as can be seen from the later description

exercise is evident.

When contact 75 f is opened, relay G speaks in the coupling stage KSi 2 / E , as explained above,

parallel to relay F. Via contact 79 g, the selector coils Yr and ZrIO receive current flowing through them, what

Winding II of the relay R (Fig. 3) continues current. In Fig. ₃ has r consequence that at the coupling point krlo the contacts has the relay F f by opening the contacts 61 are closed 63 F 35. There is only one of these contacts

the circuits 10 and 11 are interrupted and the contact is shown because the others are not interested in

Windings I Al and ICl switched off. Over which the Konende switching processes are used. By closing,

clocks 80f and 81f are the windings I Bl and I Dl of this contact 117 shown in FIG. 6 is that

turned on. Furthermore, relay G is short-circuited by opening the contacts and releases with a delay. To

66 f and 67 f as well as the closing of the contacts 82 f and 83 f 30 the opening of the contacts 107g and 114g, the test

the charged capacitor KoI as an additional power source from the relays Pl and PlO again. One holding circuit across

Relay windings IBl and IDl connected upstream, so that their windings II could not come about because

Also this relay is open to a discharge current of the condenser contact 41 fh. At contact 79g (Fig. 3)

Sators KoI respond, because the relays Al and Cl are, the winding II of the relay R is switched off. Relay R

energized, and contacts 85al and 84c 1 are closed: 35 drops out with a delay. The relay Hl

and H2 (Fig. 6) switched on:

14. - (Fig. 2), 38, Gu2, 32b, ..., 36 «, ..., 9, (Fig. 3) ^{{ g; s}

7cl, 4AsI, 56Al, 6Ofh, 8Of ₁ IBl, 83f KoI, 82f, ₂ Q + 28r ' ^{l P} 120? 121fh, if ^ fi ^ i _. 85al, 70, -. 119m H2

15. - (Fig. 2), 40, Gm4, 34 ^, ..., 37ü, ..., 10, (Fig. 3) 4o relay Hl opens, among other things, the contact 123M. 8cl, 45sl, 57 £ 1, 62fh, 81 f, I Dl, 83f, KoI, 82f, relay H2 has pick-up delay. Via contact 135A2 85al, 70, -. (Fig. 3) and the coupling contact 55Al, the selector coil Xl is kept switched on. Contact 122Ä2 opens.

The holding contacts 124 & 2 are closed at the contacts 86 & 1 or 87iZl. However, windings II Bl or II Dl can be switched on via wire 125. 45 only after the relay Hl has dropped, which is now

The switched after the response of the relay F _se i _n winding he upstream Kondensatorwiderstands-

Relay G (Fig. 6) prepares the termination of the evaluation arrangement Ko3, 126 drop-out delay has a switching

before. The delayed relay Fh switches and the process is carried out.

Selector coil Yr of the second coupling stage KSt2jE on : The test relays Pl and PlO have on the contacts

ixr ^ on ⁹² A ¹⁰ Qo ^Fh 50 11 ^, 1 or 127 ^ 10 which connect the intermediate lines ZLl and

lo. (JMg. Ά) +, Wr, - ^ -—, \) ag, ~ ^ p ^ r> ~ - ZI20 in the coupling stage KSt 2 / A assigned lower

Right selector coils YaI and YaIO switched on: By opening the contacts 52fh and closing the

Contact 95fh , relay Fh is placed parallel to winding ₂ \ + 128fh 14m II Sl and further 55 '''via contacts 51 si and 5Or

held. The contacts 6Of h and 62fh open. Contacts 96f h and 97 fh close. Via the contact pyramid shown below on the right at the crosspoints £ «1/10 and £« 10/10 (Fig. 5), the horizontal connection is made, since the traffic direction direction coil ZrIO is via the horizontal right direction selector coil JFrIO Electricity flows. This through-switching VR 10 switched on, since all four selection relays A 1, Bl, Cl, 60 f _o i _{gt eme} testing of the connecting lines FLl and JOQ ^ - FL10 reachable via the intermediate lines ZLl Dl are addressed: _and ^ L 10 of the traffic direction VR 10 in the time in which the

17. +, -, 102fÄ, 103 «1, 104cl, 105 & 1, 106il, relay H1 is still addressed. Are both outgoing

IQIu connecting lines free, that's how the test relays Pl

XrIO, -. ⁵ S and PlO to:

Simultaneously with the last described switching processes 22. + (Fig. 6), 28r, IPl, 130g, 131 & 1, 132 (Fig. 5),

The intermediate lines are checked. With 133m, 134 £ «l / 10 after - at the incoming end

Contact 41 fh is the circuit 7 via the winding of the connecting line FLl of the traffic direction

Sl and II Pl separated. Relay Pl drops out. Sindz. B. 70 VR 10.

23. -f- (Fig. 6), 28r, I P10, 112 #, 136g, 137A1, 138 (Fig. 5), 139ka 10/10 to - at the incoming end of the connecting line TX10 of the traffic direction Fi? 10.

Via the contacts UOpI and UIp 10 the involvement of voters coils Yz is; 1 and YwIO (Fig. 4) of the coupling stage KSt 1 V prepared. As a result of a chain connection of the contacts, since the contact U2pl opens, only the selector coil Yv 1 can receive power when the relay Hl has dropped out and the contact 123Al has closed. The voter coil Yi'l receives power in the following way:

24. (Fig. 6) -, 28) -, 119 «/ · {118p 10 is open), 120g, 121 fh, 124Λ2, 123Al .. 125 (Fig. 4), 143? /, UOpI, YvI, - .

The selector coils A'l and Yz are now traversed by the current; 1 of the coupling stage KSt 1 as well as AVlO and YaI of the coupling stage KSt 2, so that the following circuit is closed for the auxiliary test relay PA:

25. - (Fig. 3), I Ph, II Ph, 58 * 1.150 (Fig. 4), 151 * 1) 1/1, 152 (Fig. 5), 134 * «110 to - at the incoming end of the connection line TXl of traffic direction Fi? 10.

Relay PA blocks the busy connection line for traffic direction Fi by shorting its winding I at contact 153ph. 10. Relay PA has established holding circuits at contact 162ph via relays Fh and II Sl.

By closing the contact 154 /> A, plus potential is immediately applied to both speech wires 9 and 10 of the input El. In the transmission UeI (Fig. 2) responds to the strong current via the wire 9, the relay ZA and indicates the connection of the connection path via the coordinate group selector. The selection combination required for setting the next connection dialer is created in the register.

If in effect of the relay dropping out i? the contact 28 / - opens and the circuit 20 for relay ff 2 interrupts, this falls off. Contact 135A2 removes the short circuit of the winding ICl (Fig. 3), so that this Relay responds:

26. +, ISSfh, I Cl, 55 * 1, A * 1, -.

Open contacts 7el, 8el, 18cl. The contacts Close 156cl, 157cl, 158cl and 159cl. A circuit across the winding II Cl is established:

27. + (Fig. 2), 22cmc, ..., 17, (Fig. 3) 159cl, II Cl, -.

Relay PA is short-circuited via contact 158el and drops out. The positive potential applied to the contact 22cMe also has the effect that the holding coils HvI (Fig. 4) and Hai (Fig. 5) are energized for the duration of the connection and that the intermediate line ZLl for the test relay Pl is also marked as occupied is. The holding circuit for the holding coils ffz; l and ffal runs in the following way:

28. + (Fig. 2), 22cue, ..., 17, (Fig. 3) 159cl, 160,

HvI, - of the relay Ph short-circuited at contact 158el, the setting device E is enabled.

If all intermediate lines ZL 1 to ZL 10 tested at the same time are blocked, relay F (Fig. 6) is short-circuited via the following path after relay H 2 (circuit 20) has responded:

29. F upper winding end, 78f, 163A2, 24r, 164 /> 1, ..., 165 /> 9, 166 ", 167 /) 10, 168/7", F lower winding end.

After relay F has dropped out, relay U (Fig. 3) is switched on:

30th

91 u

^0, 93 g, 169 f, It /, -.

By opening the contact 101 u , since the parallel contact lOOf is already open, the circuit 17 via the selector coil AV10 is interrupted. The coupling contact 117 *) - 10 (Fig. 6) opens. Relay U switches the test relays Pl to P 9 to test the intermediate lines ZLIl to ZL 19 and at the same time short-circuits the winding I of the relay PlO. Relay PIO is no longer required when testing the second group, which comprises only nine intermediate lines. The switching of the test relays Pl and P9 shown to the test leads of the shown intermediate lines ZLIl and ZL 19 takes place by the changeover contacts 109k / 170w, 133m, / 171m, 172m / 173m, 174m / 175m shown in FIG. At the same time, the relay U switches on its holding winding II shown in Fig. 6:

31. -K 28) -, 176m, 177 ^ 10, II U, -.

The winding I PlO is short-circuited via the contacts 176m, 177 /> 10, 178m. By moving the changeover contact 14m / 180m, the connection of selector coils YaIl to Ya 19 of the second intermediate line group ZLIl to ZL19 is prepared.

Since the coupling contact 117 * rlO is open, relay G responds again:

32. +, 72c 1, G, 77, -.

Relay G interrupts circuit 20 at contact 120g for relay ff 2, which drops out. After contact 73A2 closes, relay F responds via circuit 13. Since the relay Fh is still energized, circuit 17 for the selector coil AV10 is closed again. If the intermediate lines ZLIl and ZL19 are free, the relays Pl and P9 respond:

33.28r, IPl, 107g, 108, (Fig. 5) 170m, 185,

ff «11, 186, (Fig. 4) HvIl, -

34. +, 28r, I P9, 181g, 182, (Fig. 5) 173m, 183, ff α 19, -

184, (Fig. 4) ff ν 19, - '

The selector coils YaIl or Ya 19 are switched on at contacts 187p 1 or 188 /) 9: 187 /) 1, YaIl, -

(Fig. 4) 161Az; 1/1,

35. +, 128 fh, 180m,

111, (Fig. 5) Hai, 188 /> 9, Ya 19, -

When establishing a further connection via the coordinate selector, the intermediate line ZL1 is marked as busy, because the positive potential on wire 111 is via 110, (Fig. 5) 109 '' also on 108 (Fig. 6). If the contact 107g closes when a further connection is established via the coordinate selector, the winding IP1 is short-circuited. After the drop at the coupling points ka 11/10 and kal9j10 (FIG. 5), a through-connection takes place, since the horizontal selector coil XrIO is also live.

As described above, the relay G drops out, because it is short-circuited via the coupling contact 117 Ar 10. Circuit 20 is established again. After the relay ffl has responded and contacts 131Al and 190Al have closed, the traffic

709 960/123

direction Fi? 10 outgoing connection lines FiI and FL 9 through the relays Pl and P9, which drop in the time between the drop of the relay G (closing of the contacts 130 g, 189 g) and the response of the relay Hl (closing of the contacts 131Al and 190Al).

Both connecting lines going out via the intermediate lines ZLIl and 2X19 are free. The test relays Pl and P9 respond in the following ways:

36. -h (Fig. 6) 28r, I Pl, 130g, 131Al, 132, (Fig. 5) 171 u, 192 ka 1110, to - at the incoming end of the connecting line Fill of the traffic direction VR 10.

37. _μ (Fig. 6), 28; -, I P9, 189g, 190Ä1, 193, (Fig. 5) 175u, 194 ka 19/10, to - at the incoming end * 5 of the connecting line FZ. 19 of the traffic direction P ⁷ T? 10.

Via the contacts 194 ^ 1 and 195 /> 9, since the contact 196 u is closed, the switching on of the selector coils YvIl and Yv 19 (Fig. 4) of the coupling stage KStIjV is prepared. As a result of the chain connection of the ^ contacts, since the contact 197 /> 1 is open, only the selector coil YvIl receives current when the relay Hl has dropped out and the contact 123Al (FIG. 6) has closed. The selector coil FwIl is then switched on:

38. + (Fig. 6), 28r, 118 ^ 10 (119 "is open), 120g, 12IfA, 124A2, 123Al, 125, (Fig. 4) 196m, 194 ^ 1, YvIl, -.

The following selector coils are now energized: Xl and YvIl of the coupling stage KStI, XrIQ and YaIl of the coupling stage KSt 2. All coupling contacts kvljll and ka 11/10 are closed, so that for the auxiliary check relay PA a circuit 25 similar to the holding wire the connecting line VLIl running excitation circuit is closed.

The further establishment of the connection takes place in the manner described.

The intermediate lines ZL1 and ZL 10 were tested freely as described above. The connecting lines for traffic direction Fi? 10 are blocked by a c contact corresponding to contact 158el at the inputs connected to these connecting lines. During the line test, none of the test relays Pl and PlO respond. The switchover takes place in the manner described by the relay U, so that the free intermediate lines from the group ZL 11 to ZL 19 are then determined. The free connection line to be used for the connection is then determined.

If all outgoing connecting lines in the traffic direction VR 10 are busy, this busy state is identified without the use of special coupling contacts in the coordinate selector.

When testing the connecting lines VL 11 to VL 19 that can be reached via the second group of intermediate lines, none of the test relays P1 to P9 respond. None of the contacts 164 ^> 1 to 165 ^> 9 opens. The relays U and F are addressed. Contacts 201 u and 202f are closed. The relay PlO, which has no function when testing the second group of connecting lines, responds to:

39. + (Fig. 6), 72cl, 163A2, 2Ar, 164 /. 1, ..., 165 / .9, ^6s 201 «, 202 f, II PlO, -.

By closing the contact 203 /> 10, since all the selector relays Al, Bl, Cl, Dl are energized when the code number of the traffic direction FPlO is selected, a device, not shown, indicating that all lines of the traffic direction VR 10 are busy, e.g. B. a lamp or a registration device (counter), switched on via a contact pyramid dominated by the contacts of the selector relay. The display device is operated via the following circuit:

40. +, 28r, 176m, 203 ^ 10, Gk, 204al, 205el, 20661,

207 dl, 208 after - via the monitoring device.

After the relay H2 drops out, which has short-circuited the relay Cl of the input El with its contact 135A2 (Fig. 3), the relay Cl responds:

41.4- , (Fig. 6) _{2Sr 1} 17Qu ₁ 203 /> 10, Gc, 210 (Fig. 3), I Cl, SSkI, Xl, -,

The c-contacts are transferred. Relay Cl holds itself with its winding II over circuit 27. The relay PA is not addressed. The circuit for the relay Zh of the register via the voice wires 9 and 10 was therefore not established either. The non-response of the relay Zh now causes the delivery of a busy signal to the calling subscriber in a manner that is not of interest here.

The setting device of the coordinate selector is enabled after the relay Cl has responded.

If after switching through the entrance to El to be free found interconnector for. B. VLl, the auxiliary test relay PA does not respond, because in the time between ■ see the free test of this connection line and the completion of the connection to the coupling contacts 151Ä »1/1 (Fig. 4) and 134/5: 1/10 (Fig 5) the connection line VLl has been seized by another line selector, the signal for the termination of the connection is not given. The result is that all relays still holding their armature attracted during the coupling, such as RS1, the selector relay, etc., drop out. After the contacts 5s 1, 6s 1 have been closed, the switching processes described are repeated: determining the occupied input, switching on the setting device and its control, and selecting a free intermediate line and a free outgoing line.

Claims (16)

Patent claims: 1. Circuit arrangement for multi-use cross-coil coordinate selector with two coupling stages in telephone systems, characterized in that the coupling contact rows at the intersections of horizontal (X) and vertical selector coils (Y) are divided into two coupling stages, that over a row (Al to AlO) of first coupling stage (KStIjE) each input (El) when it is occupied is connected via its own coupling contacts (kl) to a selector's own setting device, after which control one of the then selected traffic direction (VR 10) own selector coil (ZrIO) in the other coupling contact rows (kai bis ka 19) the interconnection of the input (El) with a free outgoing line (FLl / Fi? 10) via one of the intermediate lines (ZL) between the two coupling stages (KSt IjV, KSt IjA) prepared and that this interconnection after energizing this intermediate line (ZLl) in both coupling stages associated selector coils (YaI, YvI) is carried out. 2. Circuit arrangement according to claim 1, characterized in that after occupancy of an input (El) a call relay (R) common to all inputs, the excitation circuits for one of the number (ten) of inputs corresponding number of test relays (Pl to PlO) - closes (28r) and the test relay (Pl) corresponding to the assigned input (El) causes the switching on of the input selector coil (Xl) and the second selector coil (Y) influencing the control coupling contact row. 3. Circuit arrangement according to claim 2, characterized in that the excitation circuit of the test relay (Pl) runs over one or both speech wires (9, 10) of the input and at an upstream point of the connection path (z. B. in a register) after receiving the Indicator of the desired traffic direction (VR 10) is closed. 4. Circuit arrangement according to claim 1, characterized in that after marking the desired traffic direction (VR 10) and switching on the selector coil assigned to this (XrIO) test relay (Pl to PlO) of the selector, the free intermediate lines (ZLl, ZLlO) and then the to be - ·-use, accessible via one of these intermediate lines (Z-LL) free outgoing line (FLl'FKlO) fixed ^{2 <>} ask. 5. Circuit arrangement according to claim 4, characterized in that the excitation circuits of the test relays connected to free intermediate lines (z. B. Pl) run over the holding coils (HvI, Hai) , ² S which during a connection the coupling of these intermediate lines with inputs or Maintain outgoing connection lines. 6. Circuit arrangement according to claim 2 and 4, characterized in that test relays (Pl to PlO), which initiate the connection of an occupied input (E 1) via its control coupling contact set (Al) to the selector's own setting device, including the free ones from the occupied input Determine reachable intermediate lines and determine the first to be used free connection line of the selected traffic direction that can be coupled to one of the free intermediate lines. 7. Circuit arrangement according to claim 4, characterized in that after actuation of the at the intersection of the input (El) with the intermediate line to be used (ZLlO) and at the intersection of this intermediate line (ZL 10) with the free outgoing connecting line (VLl j V RIO) arranged coupling contacts an auxiliary test relay (Ph) of the selector sends out a sign indicating the connection in the selector (+ at 9 and 10) to the register. 8. Circuit arrangement according to claim 7, characterized in that the character by immediate Connection of a potential (+) to both speech 5 <> äder (9, 10) is given. 9. Circuit arrangement according to x \ nspruch 7, characterized in that the auxiliary test relay (Ph) a relay (Cl) assigned to the input (El) to be switched on switches on which this input from its contact set (kl) in the control coupling contact row (KStIjE) to switches the coupling contacts (kvljl to kvljl9) of all intermediate lines (ZLl to ZL19) leading wires. 10. Circuit arrangement according to claim 4, characterized in that with a larger number of intermediate lines (nineteen) as inputs (ten) the intermediate lines in several (e.g. two) groups in this way are subdivided so that the number of intermediate lines in each group is not greater than the number of inputs. 11. Circuit arrangement according to claim 10, characterized in that the intermediate lines of the individual groups by the number of inputs (ten) corresponding number of test relays (Pl to PlO) are successively checked for being free by after a test required to test a group time a changeover relay (U) is switched on, which switches the test relays (Pl to PlO) to the next group of intermediate lines. 12. Circuit arrangement according to claim 11, characterized in that the last group of intermediate lines to be tested (ZLIl to ZL19) comprises a number (nine) of intermediate lines which is less than the number of inputs (ten) and one when testing this intermediate line group unused test relay (PlO) initiates the identification of this busy state when all connecting lines of the selected direction that can be reached via free intermediate lines are blocked. 13. Circuit arrangement according to claim 12, characterized in that a contact pyramid (Fig. 6) controlled by selection relays (A 1 to D1) of the setting device is used to switch on a monitoring means assigned to the selected traffic direction (lamp or recording device, e.g. counter) (over 208). 14. Circuit arrangement according to claim 9 and 13, characterized in that at the same time as the monitoring means is switched on, the relay (Cl) assigned to the input is switched on and the input (El) of its control coupling contact set (kl) is switched off. 15. Circuit arrangement according to claim 2, characterized in that each test relay (Pl) is connected to the input (El) controlled by it when the coordinate selector is free, so that it responds to the speech wires (9, 10) when a fault occurs (earth fault) and an alarm relay (Ar) switches on. 16. Circuit arrangement according to claim 15, characterized in that contacts (15 pl, 16 ar) of the relay (Pl, Ar) responding in the event of a malfunction switch off free potential from the incoming occupancy wire (17) of the input (El). Documents considered: German Patent No. 927 574. In addition 5 sheets of drawings © 70.9950 / 123 4. 5 «