DE1437546A1 - Circuit arrangement for a telephone self-connection system - Google Patents

Description

SiEMDiKD BEBEERIK IflHBiZ AG

Stuttgart-Zuffenhausen Hellnnith-Hirth-Str. 42

2867 A.J. Henquet - 53 F.Delettre - 1 R.Desplanques -1

Circuit arrangement for a lOrnaprech self-connection system

The priority of the application No. France of April 24, 1963 t taken.

932 ο 554 to complete

The invention relates to a circuit arrangement for a Pernspreoh self-access system, in particular for switching equipment with cross rail switches in City headquarters. It relates esp. ' on the switching operations with the area code, through which a calling line or a connection set for incoming traffic direction can be connected to a free register.

Such circuit arrangements in which the connection sets or lines with registers divided into groups via two selection stages - a preselection stage and a register isolation stage - are connected in one switching process are known. An overflow circuit offers a limited possibility of spilling over from one register group to another register group. Such arrangements work quite satisfactorily in networks without very heavy traffic. Since | them but only a partial Überlaufmb'gliohkeit is provided would be with them in gioÄsen plants where the traffic load is ₁ 9 Ärlang JJE line reach values of O, a much GroES

JUWa & l .ton enthusiasts are needed as if between - & - 'for # rfeä # 4u »gsi» gs and registers the full reach

»•« AS · -'- - ·· ■■■ ^!

ίν

809806/0315

ISE / Rego 2867 *

In the circuit arrangement according to the invention, anyone can Connection set can be connected to any register in various ways »Apart from the advantage that can be achieved through the full access option that the number of registers is reduced can, this circuit arrangement also increases the benefit of long-distance connections, which are often set up. depends on the economic conditions »

It is known that in switching systems with crossbar switches, one is forced to make temporary permanent connections via cable bundles of a fairly large number of lines between the members of the selection chain, such as connection sets, holder bridges, etc., and control circuits such as test circuits, markers, etc. establish connection circuits with relays "line such circuit with a trunk group is described for example in the double _o Patent 1,133,024 ,, such a circuit is not suitable for ®ein in a big area with a lot! pipelines _serve? because in such a large number of facilities must be connected to one another and the traffic to be handled by the system is very heavy ΐ _ο

The circuit arrangement according to the invention should be a V © j? » connection circuit, which is more adaptable, reliable and acting faster than previously known . which especially »works better than the circuit ax © inem Yerbin & ungsleitungbündeX and which as ^M Yert) incle2? ^ß laeseiGimet is »It is not restricted to you use in. ei ~ - aer telecommunications facility _? In & ev @ n hang them im. the following ■ described

Until SeHaItiiEgsaaorinuKg according to - the Ulff finding is

cup die-Yorauswaliliseti * © * die aio.-

■ 09308/0315

ISE / tleg. 2867 *

clauses for the incoming traffic direction or the lines connects to the registers, consists of three selection levels, which are set up in such a way that each connection set with each register via different possible connection paths. under control by a test stage connected to the first pre-selection stage and through a second test stage, which is connected to the second and the third pre-selection stage, and that the permanent connections from the test stages with the connection sets and the bridges through the connectors mentioned above.

In the Bind connectors as well as in the known similar ones Connection circuits connection relay groups, multi-contact relays provided that the desired fixed Establish connection and "controlled by selection circuits In a further embodiment of the invention, a selection circuit of a connector contains a selection relay arrangement two coordinates, one of which corresponds to the connection »the other of which is based on the test levels, and dti control circuit "of each of these relays for speaking and holding two branches of which

and / the one · a chain of precedence of contacts, - / the other Relay length of one coordinate and the other a supply chain of contacts of the other relay length of another coordinate. In a further embodiment of the Invention iet the circuit by the priority Umlaufeohaltung extended from a closed counting chain per unit in series and within a every open counting chain consists of a connecting link per unit in the other series connection.

The invention is explained in more detail on the basis of an exemplary embodiment e * i & hritten »that is shown in the drawings.

8 0 9806/0315 had original

- 4-2867

Of these, FIG. 1 shows an overview circuit diagram based on whose general function of the circuit arrangement is explained according to the invention.

Figo 2 shows the relationship between the connection sets for incoming traffic direction, the crossbars switch the three preselection levels, the common test stages and the connectors in a single-pole circuit diagram.

Pig. 3 shows the essential switching elements of the selection circuit in a connector.

4 shows the most important switching elements necessary for understanding the function of the first stage of the preselection.

FIG. 5 shows the most important ones necessary for understanding the function of the second and third stages of the preselection Shifter elements.

Structure and mode of operation of the circuit arrangement according to the Invention will first be explained using the jf'igol ,, A every connection Sentence 1 for the incoming traffic direction is connected to a heat reducer 2. In the first Gate selection stage 5 is each Ixe ^ itter connector 2 with connected to a line of a single crossbar switch, the ^ backs of which with lines to different Switching elements of the second preselection stage 6 are connected

A call from an interconnection circuit is received by a connection set for seeding traffic signal ¹ connected to it, and then from the assigned ice gist server cinder, which calls a connector 3, us rr .to cones with a first test level 4 in 7- "tindun _e . I / er connector 3 selects one of the

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. 2867

Calling connection sentences and one of the free test levels and establishes a connection between these two β At the same time it establishes a connection between the same test level as that for the calling connection set and your relevant switch.

Call level 4 uses these connections to identify the calling connection set and to set the switching status of the press firmly in the switch in the first stage «About their direct connections to the second level 6 she calls in this one such free switch, access to the primary switch via a free bridge calling connection set and selects a switch of the second V / ahlstufe, whereby a bridge is determined in the switch 5 of the primary stage. In this or one At another appropriate time, it controls the adjustment of the rods of the two above-mentioned containers in the first and in the . second switching stage e ^ f «

The backs of switch 6 are of the second switching stage connected to various switches in the third selection level 8. In this they are with cables to crossbar switches η connected, each bridge of which leads to an iaegibter 9. Ler second switch, -the one from the first Test level 4 is occupied, a connector 3 'calls to r :: ib to be connected to a second test stage 7. The ver

2b binder 3 'wiiiilt a switch of the second switching stage; when he is called and one of the free second test levels and establishes a connection between the two. In contrast to connector 3, it does not establish a connection to any switch of the third selection stage 8, because each switch of the second selection stage is connected to individual switches of the third selection stage, within which a selection has not yet been made.

809806/0315

BATH

ISE / ELeg. 286?

Via the connection established up to now, the second test stage 7 identifies the occupied switch 6 of the second Wanl stage "through its -direct connection with the third". In the selection level, it determines which bridges lead to free hegisters and have access to the occupied switch of the second selection level and it selects one of these bridges, whereby a certain switch of the third selection level is determined, namely the one that contains the selected bridge . Then it calls another connector 3 ¹ ' ¹ «. 1-0 He or she selects one of the second test levels through which he can be called at the same time; and connects this with the. third link group, which is already established ', - _Λ .

Then the second test stage controls the adjustment of the rod in the switch of the third selection level, the one with the previously occupied switch of the second selection stage is connected, i.e. with a bridge in this switch that is determined by the switch level, ultimately controls the second test stage successively following bridges!

The bridge in the third switch stage, which leads to the register 9 in stage 8; then over the thereby produced Connection path is the bridge in the second "switch stage, that in stage 7 with the switch In the third Switch stage is connected j at the end controls it over the. up to then established connection path the bridge in the first switch level, the one in level 6 with the assigned Switch in the second switch stage is connected »So that ' is the connection path between the calling connection set in the incoming traffic direction and a free helicopter registered ο The previously occupied test levels and connectors can now, again. · be triggered and released »- ■. '■ -.- "-

809806/0315

- 7 ISE / Reg. 2867 ■

From the above it can be seen that the selection in stages is applied twice one after the other: First, in the primary test level to connect a bridge of the second / second voter level with a calling connection set and then in the secondary test level to connect "To connect the register with the bridge in the second selector stage used in the first stage selection. These two selected options from several possible are connected to one another in the bridge of the second selector stage, in which the line connected to the pole is passed through the occupied bridge in the First ¥ ¥ ¥ ¥ ¥ ¥ ¥ ¥ level and the bridge is determined by the occupied bridge in the third ^T dialer level, as each link connects a bridge in one level to another bridge in the other level. Pig _o 2 shows the different connections between the various circuits of the preselection levels -Selection chain and common control devices in single-pole representation.

The connection sets YES for incoming traffic direction stand on the one hand with the primary Kegisterucher GEP on the other hand via a connector direction GS with a first test circuit ΪΡ in connection.

The first test circuit ¹ JIP is looking for a pole in the second register seekers GES who have access to free backs in the calling first switch stage «

The second level of maintenance calls up two test circuits via connector circuits CS in the same way and ".." as the connection set for initial traffic directions with regard to older test circuits - ¹ P has done «, '

The occupied other test circuit is looking for ax free btan ~ s in the third switch stage CÜ "P and CBSA, the I-aupt- and

809806 / 031G

- 143754a

■ .. '"Λ -8 -. ".': ■ '/ "iSE / ileg. 2867

Hi If s s cli alt err ahme η, 'attached to the selected bridges of the second switch stage are connected and access to have a free register, subject expiry of this switching- processes and after completing the selection in the IFaIl, whom If several register searchers offer the switching elements searched for, then the occupied second test circuit TS controls the operation of the bridges in the third * second and first switch level and thereby connects the connection set for incoming availability with a free register » . '■ ;. . '.; - ■

Selection circuit for the connector circuit • and connection relay «,

The selection circuit according to]? Ig, 3 and the relay sets of the connector circuit control the connections between the devices which request a common device and a common free device! These common devices are in order to ensure greater reliability up pen'zu each arranged three they j Icönnen with a v, ^r eeiiselnden number of to be controlled Siö'haltun ^ eri who connected to the eil old processes depends on the duration of the off-ζ ui watch end 6 and the reference to the prevailing traffic conditions in view of the number of warxing calls that are still sul-"" - part of warxing calls. "...

The selection circuit: öer connector port ^ iiEicii i''ig.3 is intended for the connection of "10 circuits with 5 common devices 001, O2 and; XC3, but is; it is not -". Limited to these numbers; It is also used for the connection of 20ν circuits with a group of -3 common devices: or of 2 groups of 10 circuits each with- 2 G groups of 5 common configurations each, y / oby these two'-i-groups- of each

. ^: . '. ; '■ ^■:; BMD ORiGSHAL - 9 -

809806/0315;

- g -

2867 "- '.'"

3 common institutions work together to create common To perform punctures ο

Any circuit requesting a common facility is - in the selection circuit after! ig »3 through three -. Relays 1E1, 132, "« "are shown, each of which is one which is assigned to three common facilities "

The response circuit of these three relays is through the Contacts px1, px2 or px3 controlled, which indicate the availability of the corresponding shared facility o

In I ¹ Ig ₀ 3 a contact arrangement is also shown, in which in the ijissprechstromkreis of a relay i'rennkontakte the other two relays are arranged; the relay IE1 can be held by its own contact 1e1 independently of the two isolating contacts 1e2 and 1e3. So if all three common 'devices are free, then all three relays TE1, 1132 and 1E3 respond when a request is made, but only the Seiais 111 can hold "- It has priority over the other two relays and the first requesting circuit is connected to the first common device ₀

The d-old Troia circle of the relay 1E2 is independent of the relay 1iü3j however, depends on a separating contact 1e1 so that this relay 1E2 can only be held when the ielais is not attracted 1ϋ1, d _o h ", only if the first common device is already occupied by a request ο according to a second priority, the first calling circuit is connected to the second common device, and finally the relay 11 ^ 3 can only respond if the other two relays

not; me;. ezo - s, ie are free d _o h when only the third i device alone is free ο

809806/031 5

ISE / keg. 2867 \, _

The TO β circuit according to i ⁿ igo3 is switched in a modified priority level so that it can be connected first to the third common device, then to the first and finally to the second, depending on the priority. This cyclical interchanging - the order of precedence allows a better, even wedging of the traffic on the common facilities. It is known that a counter can be arranged in each shared facility To plague a bug in one of the institutions »

If requests by two or more circuits with priority with respect to the same common device occur at the same time, then a selection of the shell connections is made by the string contact chain of the relays 1E1, _OO o etc. in such a way that each actuated relay has the holding circuits the other relay disconnects. Finally, to prevent the first circuits in the chain always having priority over the following, a priority distribution circuit changes the beginning of the holding contact chain each time the shared facility is occupied »

In order to simplify the representation in the visual plan according to Figo3 are in the priority distribution circuits distributor 1, 2,3 only the contacts of the relays of the distribution chain shown, however, another arrangement can also be used. the"

When a request in two circuits with priority with respect to the same common device occurs at the same time, or in two, circuits if swei .30 common facilities, such as the first and the third, are already occupied, so that access can only be made to the last free shared link

. ; 80 98 0 6/0 315 ■: '

- 11 ISE / Reg. 2867 '

direction exists, then the two relays 1iu2 and " 10E2 only one can be held and thus a connection to the one common input that can still be occupied. direction, namely the relay 112 "

• 5 The reason for this is that relay 1E2 is dependent on is held by the arrangement of the contacts in the priority distribution chain 2p1, "οo2pn * ο co2p9, 2p10, if the contact 2pl is closed at the time of the request, or the relay 10E2 is held if a other contact in the chain is closed "

But it is also possible to use the Ealtestromkreise several other "E" -R.elais that connect to the same common Establish facility to switch over a single contact in the priority distribution chain and for example to provide only four or five distribution relays for 20 "E" relays,

A shared facility that was last set remains in the occupied state as long as "like the the other two bodies in the same group are free to better distribute the cases over to achieve all common facilities of the o-group » In Fig.3 only the holding relay contacts r ^: 1, rx2 and rx3 shown. With this arrangement it is avoided that in times of low traffic a disrupted common entrance * Direction always revived by the same requesting circuit v.ira, if at a previous occupancy the malfunction of this common Uineinrichtung found has been.

Has the identity identifier of a circuit that requests a: e- - common Linrich'cun ^, irc. except for jreireinsa-, ir.en I-Jinrichtuni; surpassed, τ / ο by this «equali ^ t, the Yerbiiiäun s:. 'elais zn actuate the correct T'rr-

- 12 -

809806/0315.

ISE / Reg. 2867 '-:, V

binding from the requesting entity to the common one Establishment manufactures. This identity identifier is used by the common circuits for controlling the Evaluation of switching processes for executing the level selection.

In Jigο4 an application example 1 for the circuit described above is shown, in which the connection of a register connector to the test circuit which controls the first stage selection is shown in Pig.5 the control device for the second and third stage selection by the second test circuit is shown. These devices form a ¹ I ¹ eil of the chain of circuits for producing a compound of a compound set .for anko ^ sr mmende traffic ichtun «^ with a UE-gister is used and which is referred to as" pre-Auswaiilkette ".

A primary operator stage serves two groups of 28 connection sets for incoming traffic guidance, as shown in j? Ig “2, _- is shown. This connection sets are _r divided into four groups of seven facilitate au oils to choose from.

The requesting connection set YES for incoming / outgoing traffic direction ' -JiQ. the ".te gist erverbinder- JV, bring that for the 7 connection sets f-.Ir ar: k ο erring traffic sr ichtun ^ _e ^ einöame Eich do, ^ relais AP» '.,' ie in cer .e ^ ciareibunr; the off-Y; ahlscn £ .ltun-3 in a connector circuit CO already auseinandergesetat speaks a Helais 2io and occupies a Primärprüfschaltung ϊΡ; in eggs off .. ^r ab-le-cn & ltung speaks the l-.elais PX and zei _t - t on the fact that the test circuit -istο the free Heiais IDs in .eihe ^ », CEIR tit, Ilich--" üun ^ 'srelsls PO "elaaltsn that the test scarf turii.". .bele · - "t,.

\ xnd, ■■ ■ -. CZ.S _.elais ^ G Hxr ^ iert'you .jexegun ^ ei es er .; Prüfscaal-

» '1> s .jtroi. / irtQT .im, ji'elais' JL. speaks n, let ^ tic-t

809806/0315

-13 - lüüs / feeg. 286?

his contact oil and controls the power supply for everyone Relay in the test circuit. This arrangement makes it easier the lielais contacts against damage by sparks " Protect interruptions as the power supply of the'most Itelöis in the circuit not through a Jielais contact is interrupted, but by a Seiais with contacts, which are sized for the interruption of stronger currents are.

Bas .utelais λ a in! Pig «4 talks about Srde, contact pci, a contact chain formed from IContacts of the ..-. Elais ES, of which only one relay DS is addressed, and about an individual contact es of the actuated relay ES, RS against voltage at "S" for each switch sub-stage there is a " HS " relay and this is an identification code for the test circuit for the order numbers of the switch sub-stage to which it is connected, or, differently expressed which Yeruinrlungsrelais 0 in the. Yerbindungsrahmen the Yerbindungsschaltuiig G ¹ C should be operated.

as soon as the connection relay is 0 actuated speaks a -telais öjJ and zei _o -t characterized in that from the from. per Y Yerbindiaigdätzei) x for the incoming direction of traffic existing 'i group under the u o-ru,: - pen of the first counter level caused all request

The _i.elais SÜ determines in which OK level from the 28th ü5 connection sentences contain the requesting connection sentence is, and this is indicated by the response of the relay SZ or α es = · lic lsi s SY "

The: telais .dX and SY l / egen, in each subgroup of the multiple, right or left, a free bridge in the '50 first Yor selection tux SP is to be looked for _o

: uor: iu. rixfsizl-lhi ^ e switching state of the .press is thereby

, d as the: ju, Ehorigen JÄelais Y are addressedj

809806/0315

- 14 -

- 14 ISS / feeg. 2867 '.

in the multiple, at least one bridge in the first stage leads to a sub-stage SS in the second [sub-stage. fe "· '· .- ■". ■

All "actuated T-II relays" corresponding to a free bridge they close one. Request circuit to those second Switch subgroups to which these bridges are assigned ο The relay T of the second level of maintenance safeguard the Selection of a requesting test circuit to a second, Sehaltteilstufe if other test circuits at the same time make a request to the same second retainer sub-level «*. . ,

If several free second switches establish a connection to the same requesting test circuit, then the relay SS of the test circuit select a second connection group; only a single "relay SS can ^{keep itself in; be} with the Selais.PS ,, - After the Heiais PS'in the test circuit has picked up, the relay ¹ SPX drops out and. interrupts those circuits via the second - switch stages of a test circuit can be requested, with the exception of the one belonging to the Seiais SS, which is continued wirclo .. - ■■ .- ■ - ■ · ■■■ -

".- The bridge which belongs to the · second switch in the selected Sehaltteilstufe, .is actuated by a contact · -the relay SS and a contact of one of the two Helais"5'GZ or 5 ¹ CT ^; V

From.]? Igo, 5 it emerges that a contact with this wracke causes a second test circuit I ¹ S to be requested. The test circuit is selected in the manner described above; lin Heiais ES in the. Selection circuit GC responds and a Zelais ES shows the Prüfschs, ltimg, the. Serial number 'of the second switch sub-level / to the. be operated _; should »· ■. __ ■. '. .

BAD ORiGiNAL

"■": .. 800806/03 1 5 '

- 15 ISE / Reg. 2867. '

After connecting the other switch sub-stage SS with. the second test circuit TS through the relay GS in the The connector circuit GO addresses the relay D in the second selection stage, whereupon the relays PX and P2 in the second Test circuit also respond. Relay P2, which responds "when the test circuit is occupied, checks for one free third switch sub-stage ST, which gives access to a EWC has free register »

A relay T in the third switch part stage ST responds and indicates the second test circuit by means of a relay ST, the order number of the "occupied third switch% substep of, the connection relay GT addresses, connecting the second test circuit with the third switch part stage ST.

As soon as the second test circuit with a third switch sub-stage ST is connected, which has access to a free accessible register -LER, this is through_die Eelais G- and OV identified in the second i-na circuit, or / i if several registers from this third switch sub-stage are reachable from <es \ vird> one of these Registers selected.

The relay I ¹ G brings jJrde via a contact of the relay PGV (to the relay PX. The ReL ais CV are connected via a contact px and a changeover contact cvx to the contacts indicating the price status of the registers. To facilitate identification, the 28 Register connected to a third switch sub-stage, divided into 4 groups of 7 registers each, üin relay CY selects a free register in a seventh _t _.ruepe. Then a relay CVX speaks via an open contact of the activated CV- Relay on and then a relay G ^ determines in which of the four -irupoen the register selected by the relay OV a # s ^ e is arranged.

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809806/03 10

ISE / Reg "2867

A combination of contacts of relays CY and G- actuated then the bridge in the third switch sub-stage, the leads to the selected register.

The bridges of the first and the second register finder are operated one after the other via the line T.

The relay JD in the register connection circuit JjS, speaks and switches on the shared facilities by interrupting the holding circuit of the relay AP free The common circuits for the control the establishment of a connection from a requesting connection record to a register -were needed are,. trigger thereby. .- ■ "-.." ■

6 claims

5 l - io ■ Drawings Tit

i ".4.1. > -Λ ■. ■ :

809 8 0 6 / Ü3 10

Claims (1)

- 17 - ISB / feeg. 2867 '143J546 ■ Claims ο Circuit arrangement for a telephone system with crossbar switches as hold-through organs and with registers, with holding relay according to two coordinates with several relays, of which two relays with a common coordinate cannot respond together in stable combination, characterized in that each of the same Coordinate assigned relay etch in one direction has a hold circuit that excludes an actuated relay of the other associated relay holds, and that "contacts the other relay of the same coordinate in the the other direction the relay with. common coordinate press in the other direction « 2ο circuit arrangement according to claim 1, characterized in that each relay set with a common coordinate in one "direction is assigned a common relay relay and is switched in such a way that it responds after one of the coordinate relays assigned to it responds and thereby the _Ä nsprechstromkreise the associated iuelais blocks, only one of which is held in the holding circuit _o Ο 3 ö 0haltun _o ^- 3anordnung according to claim 1 or 2, characterized in that the holding circuit composed by an associated contacts from the one direction Torrang relay contact chain formed " 4ο switching arrangement according to claim 1, 2 or 3, characterized in that that the relays have the same coordinate in the. · Aadt-ren direction through contact sets of the priority contact chains can be activated » - 18 - 809806/0315 - ■■; ■■■ '■■■ - is -' · _-. "■ .. ■.. \. - 2867 Circuit arrangement according to Claim 2, 3 or 4, characterized in that switching means are provided for connecting the common relays to a common point of the holding circuit, and that the priority can be changed in one direction _{or the like} Circuit arrangement according to Claims 1 to 5, characterized in that that switching means are provided that prevent a relay after it has dropped out after successful Actuation of the same or another assigned relay with the same coordinate in this direction • can respond again, before another relay is addressed with a different coordinate in this direction if none of the relays has the other coordinate actuated 15-4.1964 -. sta / ¥ p; gap ORIGINAL 803806/03 15