DE2058489C - Circuit arrangement for telecommunications switching systems, in particular telephone switching systems, with reverse grouping - Google Patents

Description

old-

Establishing a connection via Kurzweiie unbe ^ clK ti ·· -, Koppeh ielf .-. For the invention there is the task. ■ ■ :. a reporting system. their switching matrix according to

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relay, π

HC ^ '. OÜI! "

J Ί1 principle

l'return grouping

DiewegeHiclK find the right ones

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and

necessary

. ir. 1 11. ■ * G.:be

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on-len Ko'.ipelscha.tmiuel, z. B. coupling ■ '^ ■ indc · can be connected. A central - ", κ-"! -, r ^ hmniz / serves for the connection η. the one W, ^ search facility H., •; ₍ ! "^ \ 1, rkier? R M belong. These facilities. '.;"; ,, K .. _r ST-u-'s: rom circles ν with not shown, hm-.iellV.nrichsunüen of the coupling units K 1 up to λ lh ^ ηΓίΚτ-! unit of the switching network are jcweiN _r .; _n iicb- ^ Mo grouped: that is, from each of the im- ■ ■■: - _{1> v} , .. <.. _{r of} the coupling unit their Λιι- ^ ■ n "e 'icwe.N only one way to reach rfe'4-n Re. Bele _B une of an entrance of a Koppe, - ■■ \ S .- \ - -nd emes ^ certain of its exits is aK-

> ■ - b- die Koppe! Einhe ^: t \ Seg. ^ - ieHeiK a ten of one to be looked through

vrduiic represents, clearly defined. This Ρπηζψ Erk-entert essentially di- measures the Aece

^SU DiV finals of the coupling field are partly with two-wire and partly with four-wire lines and switching elements, e.g. B. λ 3 and λ4 or * 1 and kl. K-switches under which subscriber line «!. Local conditions -... training measures. Trunk lines. Connection sat / e

• · ..iauseäneen a selection to the effect trirTt.'daß ^ 5 voting reception registers. ^N. ^^ "^""", f _and ^ \ or. The unswitched or '.on Jri ": ni _C : n have passed. The two-wire lines and multi-channel outputs. . ,, i ^ \ - switching elements such as small and * 4 sina d. - htieen or vierdfäh'.iiien Koppehielfachausgjn- the Koppelemheiten K \ to KH ■ ·, leading between lines beschältet s.nd. r.No four-wire lines and ■ ~ Ver Auslassune the proposed 3 <> with mifGabelschaltung and small. ·· η Koppelsiel- K9 to K \ are beschall to the inputs of ■ "Henen intermediate lines connected. 6 The these ■] houses. a free one is chosen. with the numbers given

The invention wi "d ie under bunder that total eight Koppeleinneiten ^ l in the production of four-wire VicrdrahtAcibindun- drähtige Verbindungsdurc, · η over short paths -. Thus, by connecting the JE 35 peleinheiten K9 to K 16 vJeils respective two four-wire Koppelfeld- dung by circuit Inputs with two inputs one and the same switching matrix and by interconnecting these two switching matrix inputs with the aid of a single switching matrix output connected to a further intermediate line - such intermediate lines are used which n ·, »; Hybrid circuits are equipped. This not only makes a useless use of it

■: · ;. ;; aeh whom the Durctwha ".'erbindun-ie :! I / ■■■> ■ eidraht- and ; e! i m :: and '.ihne Embe / iehune ■ en) is realizable.

lie * - · task becomes iie! »'e! d in well-known ^v Λ ■ e; ^ e: iir ihtiiie and one for vierdra!» .iivclialtuns: applied part of al- ^ pelfeldteile connecting Ζ \ ·.: - ι

chaltuncen up ^ 'st and that when producing \ mi \. "biP.dunsen within the ^for / wcidr ^; ihv.ge%' e ·" r-.rJunt! s through> .hal: ung laid out K.ipp.lfeldteilc! . ·, "v, de for vierdrahtisie Verbindunc ^ by J ¹ x '"!.. ni is> .l _"ijlti; .legten Koppolfeldteiles jewe: K through .Nr.-e ¹ - ·..' ·. Ι of the relevant two coupling fields demgar.ge ■ - •.; I ".- jm to a single coupling field ¹ -.! "!? a. W w per search facility under the relevant headers'

nir z. J ^ern

propagation ^ f; j but len have no meaning

yourself. ..... ^ _1. , ":". _Λ . _{A Ρ} rt and manner of

The coupling unit Kl cip «·« ^ "" * ™ ; "" Wiring of the coupling unit multiple output of the ^ rs, η

up to the penultimate coupling stage [* ™ «Jl ™ \ £ went to the second _b, s the latter '
Within the two ^K "PP" ^l coupling groups gebädet l
h lh Ke

acceptance of coupling group gl ^

Hybrid switching prevents, but one un- 45 such coupling groups. ■ “nschter effect prevented, the way under privation are the ^ '^ di büd dß di Gblhl

are ate

of the invention would be that the fork scarf combined in coupling rows. From <»look \ on

connections that only in this special case the connec- tion difference between two-wire and

production via short routes two-wire viiig ivch? Execution of the coupling units on the one hand

would be completed, on the four-wire side a coupling 5 <> K 8 and on the other hand the Γ · - · - · -: - να

of the two two-wire branches of the switched through are the coupling units

Establish a four-wire-four-wire connection. The outputs of the

the. This undesirable effect is invented intermediate lines (D. E, .., -...

measured in a simple manner by appropriate testers outputs of each coupling unit are systcma-

Obstruction of the route search eliminated 55 table with outputs of every other coupling unit

In the drawing is an exemplary embodiment of the bound. Each coupling unit has with each other

Invention shown. direct connection options The drawing shows essentially one after the other via a bevy of intermediate lines. Here- Principle of the reverse grouping designed coupling of are only a few "» "" "I" repeated

field. The switching matrix consists of coupling units KX ⁶ ° Any of those at D, E and G

to K 16. Of these, only the coupling unit """is acntiprt iewe

Kl reproduced in more details. The coupling unit K \ shows that the switching network is made up of the three switching stages A, B and C. As is well known, the strongly drawn out vertical lines represent coupling matrices constructed in the form of coordinates, each with several inputs and several outputs each, which can be selected via the

tung ^^ connections. The at

8 ^ n output ^ ner of the pp ^^^ connected Likewise, each of these intermediate lines at G mt is each emem

wired output of the coupling units K 9 to K 16 connected. The coupling network thus has both a part designed for two-wire and a four-wire connection through-connection (coupling units K 1 to K 8 or K 9 to K 16) and hybrid circuits GX to G 3. which lie in the intermediate lines (at G) running between the two coupling field parts.

The manner in which the connection is switched through in telephone communication systems with coupling fields grouped in this way can be assumed to be absolutely known. For a better understanding, however, it should be remembered that every connection through-connection consists in two switching network inputs being switched through via two partial connections up to one of the switching circuits and interconnected in this. Fine connection between an input of the coupling unit Kl. E.g. Ki. and one input of the coupling unit K 8 runs in each of the coupling units over all three coupling stages and over an intermediate line connecting the two coupling units with one another, as shown at D. The same applies to a connection between an input of the coupling unit K9 and an input of the coupling unit K16. whereby one of the intermediate lines is used which run between these two coping units and w? it is shown at E. For the purpose of switching through four-wire-four-wire connections, the inputs of the coupling units K 9 to K 16 each have an intersection relay serving to cross wire pairs in the manner already proposed in accordance with patent application P 20 38 213.2-21 a3. With each four-wire / four-wire connection through-connection, one of the two crossover relays assigned to the relevant two coupling circuit inputs is actuated.

Connections between one of the switching network inputs of the switching network units K 1 to K 8 and one of the coupling field inputs of the coupling units K 9 to K 16 run via one of the intermediate lines shown at G. Each of these last-mentioned intermediate lines is partly single-wire and partly four-wire and accordingly comprises a hybrid circuit (71 to G 3.

All these connections described above are established in the same way by the central control device Z with the aid of its route search device W and its marking M. The route searcher direction W is essentially implemented by a central route search memory and an associated logic circuit, which are not shown in detail. The route search method using a route search memory is known from the following literature sources, among others:

German Patent 1190518; German Ausleeeschriften 1251816, 1252 270, 1252 754, 1253769. 1,254,196, 1,254,703, 1,254,704, 1,256,267; German Patent 1,275,149; German Offenlegungsschrift 1487929.

The route search memory W contains for all parts of the Coupling network (inputs, outputs and intermediate lines and / or crosspoints) each have a storage element. Based on these storage elements, in can be read at any moment from the route search memory, such as the status (free or occupied) of all parts of the Koppelfc'tdes is in each case with the help of the route search memory and the logic circuit assigned to it, preparatory for any desired prevention switching through determines the path through which a through-connection can be implemented in the switching network. The corresponding result of this is via the marker Λί of the central control device and the S Stcucrstromkreise 5 transferred to the setting devices of the relevant coupling unit, which then make an adjustment of the relevant parts of the coupling units. As already stated, connections can genes can also be produced via so-called short routes. This is illustrated by an example. Let it be the uppermost input of the uppermost coupling multiple of the coupling stage A of the uppermost coupling group of the coupling unit K1 with the lowermost one of the

The lowest coupling compartment of the coupling stage A of the lowest coupling group is also to be connected to the coupling unit Ki . The central route search device H determines a switchable route for this purpose. which has two different switching matrices of the head pclstufe B and one and the same switching matrix in the coupling stage C. It is assumed that this path should run via the uppermost switching matrix of the uppermost Ko "pclrcihc of the coupling stage C of the coupling link K 1. This path thus runs over

a $ two inputs of this coupling multiple. The corresponding two coordinate multiple lines within this coupling multiple are connected to one and the same output iiicx.5 KoppclvieHache *. It is assumed that this is one of the intermediate lines shown at P. This intermediate line is therefore occupied blindly in the short connection described. This short connection therefore runs over only five coupling multiples instead of six switching matrices. Short connections can also be used fertilizing exercises a total of only three switching matrices or can be produced using only a single switching matrix. A short connection over three switching matrices runs z. B. as follows: Top and bottom switching matrix of switching stage A in the top switching the coupling unit K1 and top switching matrix of the switching stage B also group the top coupling group of the coupling unit Kl. In through-connection of such a compound is one of the short between the switching stages B and C extending intermediate

♦ 5 lines blindly assigned. The same applies to a short connection via only a single coupling multiple of the switching stage A.

It is possible to use unconnected matrix outputs, e.g. B. u. To be provided. In this case, the

δ »central path search device W when making short connections instead of blindly assigned intermediate lines with preference unconnected coupling multiple outputs to enable the described interconnection of two coupling matrices inputs to accomplish the same coupling multiple. It is possible to provide such unconnected switching matrix outputs in coupling stages A and B. In contrast to this, however, the shading of all coupling multiple outputs with intermediate

βο interconnections have the advantage that the path search and Adjustment processes are more uniform.

Similar to what has been described, short connections are also established within the other coupling units. From the coupling unit K 9 are individual

⁶ S switching matrices and the intermediate lines hl, ft 2. 3 and / i4 running between them.

should be switched. This route is selected by the route search device W. For the interconnection of the two sub-connections Λ1 / Λ3 and / i2 // i4 within the relevant coupling vieN fojhes of the coupling stage C, one of the intermediate lines connected to the outputs of the relevant coupling multiple of the coupling stage C is selected by the route search device W. The intermediate lines / 15 and Λ6 and the non-shaded switching matrix output kl are available for this. The route search device W makes this selection from the outputs of the relevant coupling matrix of the coupling stage C in such a way that only of the unconnected coupling matrix outputs, e.g. B. * 7, or only from those switching matrix outputs, which lead to other four-wire switching matrix outputs intermediate lines. e.g. Λ5, are connected, a free one is selected. The route search device W excludes those switching matrix outputs of the relevant switching matrix of the switching stage C from the selection from the outset. to which an intermediate line containing a hybrid circuit (e.g. Gl), L. B. / i6, is connected. This avoids that intermediate lines are blindly occupied with hybrid circuits for the connection of short connections, with these hybrid circuits thus being used without benefit. This also applies accordingly to short connections within the two-wire part (coupling units K 1 to ff 8) of the coupling field.

ίο The functionally trained in the manner described path search device W has its main advantage that in the production of four-wire-four-wire connections via short paths is prevented that the two two-wire branches one

«5 such a connection via a hybrid connection with each other are coupled, which is only in this case two-wire not terminated and therefore also only in this case, if the invention is dispensed with, such a coupling of the two two-wire branches

* e would bring about. However, this undesirable effect is eliminated by the route search device W.

1 sheet of drawings

309630 /

Claims (2)

ι 2 circuits are partly each with their two claims: wire side individually to the outputs of input coupling groups of the switching network and each nut their 1.Circuit arrangement for the remote switchboard side to the inputs of the output coupling ! ung ^ start. in particular Fernspreehvermitt- 5 groups of the switching network via the relevant entlungsanlaeen. with a coupling field connected to the intermediate line divided from head-to-head, multiples in several over Zwischenleituneen The same applies to the wired input ir.with one another connected Koppeisiufen built koppelgrupren and two-wire Ausrangkoppelist and at the entrances of my first coupling groups of the Koppeiteide: .. level all lines (Teiinehmerleitunaen. Orts- io "Independent of it is known by the German patent and long-distance connection lines) and all" input: script I 235 374 the principle of reverse grouping and outputs from to establish connection. The invention is based on this. The invention and connection monitoring per connection Jung accordingly relates to a circuit arrangement for necessary sound elements (dial receivers, communication switching systems, in particular remote connection sets and the like) connected in the same way 15 voice switching systems. with a switching matrix, are and in which outputs the Koppehiel- is built up from switching matrices in several Koppekiu-Emgänge interconnected via Zw 1-iache of the first to last switching stage to the interconnection of the switching matrices of each nachfen and at its inputs its ei Ordered switching stage connected i: rsd all lines (subscriber lines. They can be interconnected in pairs by 20 local and long-distance connection lines) and all fingers indicate that the switching network has both inputs and outputs in a manner known to establish a connection ■ zweidräh- and "connection monitoring nottige per connection and a manoeuvrable for vierd shtige Verbindungsdurch- switching elements (Wahl receiver Verbinschaltung designed Tei'iX'l his A'8 ür.v. K9 dung rates, etc..) are turned on similarly to ¹ to K 16) as well as in the two switching matrix parts 25 in which Ai.> Gears of the switching multiples of the first connect nden intermediate lines (G) fork% «. half to last coupling stage to the inputs of the couplings (Gl to G3i and datt with multiples of the respective downstream coupling stage making connections within the two-connected and in this paired together! · wiry '. connection throughput are designed to be bar. Coupling field part (Kl to ^l .'8) b / w. In a switching network designed according to this principle of reverse group through-connection, a connection of the switching network part (A'9 to K'o ) runs through at most twice over all switching stages, i.e. switching on the relevant two coupling fields once over all Koppeistufen out. then via a / we: gears (A. 3. k4 or k 1. k 2) jointly to an output of the last coupling stage interconnecting coupling network output (m or k5 or k 7) 35 the intermediate line and then again over all a path search device (W ') back under the relevant coupling stages. Such switching matrices offer fenden switching matrix outputs a selection, as is well known, the possibility of making connections via pathways that only switch through from the unconnected niger than all switching stages. With to or from those coupling multiple outputs (1 / speaking position of two to each other or kl or A: 5). those with coupling field inputs that are linked to other two-wire * ° can also be switched through via a coupling stage that is shorter in terms of the number of interconnecting lines (D or F), i.e. omitting the with Fork- connect with each other. If these two switching matrix circuits (G1 to G3) provided intermediate inputs can be connected to one and the same coupling manifold. a free one is chosen. via two partial connections with two inputs 2. Circuit arrangement according to claim 1, that coupling multiple is connected and characterized by the fact that the path search device is connected to a single output of this coupling * 'line (W), a logic circuit and a multiple. is therefore blind is in this case, central routing memory comprises whose storage connected 5 ° with one another. For this purpose, it is known, among other things, the status (free or occupied) of all, for this purpose some of the head parts (coupling field inputs, coupling field lengths, multiple outputs of the switching network, and that the link-standardization of the path search conditions in all connection circuitry before every connection through-switching 55 coupling stages makes all switching matrix outputs with switching a path selection, the result of which is connected to the interconnection. Formation of switching matrix setting information When connecting connections via so-called serves. called short routes, d. H. over less than twice all Coupling levels, is in the last addressed ^6o case, at the same time as the relevant switching matrix output, an intermediate line is also blindly occupied. the By the German Auslegeschrift 1 298 148 it is associated - in itself avoidable - already known, in a switching network one for four-reduction of the load on the intermediate lines under wired connection through-connection and one for the use of the ⁶ S pation made possible by the principle of reverse group two-wire connection through-connection Part to be provided and in which both switching matrix parts are shortened by the already mentioned connecting party Intermediate lines in a corresponding standardization of the conditions for the route search Way to provide hybrid circuits. This fork- (no difference between wired and for purpose