CS242403B1 - Connection of transmission fields on the switching stage of the telephone exchange - Google Patents

Abstract

The invention solves the connection of transmission fields on the connection stage of a telephone exchange, consisting of racks with selectors, the rotary steps of which are connected to the outputs from the rack so that the rack has fifteen outputs. The basic connection of the transmission fields according to the invention is the connection of the transmission field to the outgoing bundle with the number of lines equal to the number of racks in the transmission field. In the basic connection, the lines of the outgoing bundle are connected to the first output of all racks and the other outputs are connected to these lines in cyclic tandems with the fifteenth output and fourteen jumpers. The connection of transmission fields with the same number of racks, but with a larger number of lines in the outgoing bundle is derived from the basic connection. With an increasing number of lines connected to the transmission field, the jumpers in the tandems are gradually omitted from the basic connection and the output, which is the beginning of the separate part of the tandem, is connected to the line of the outgoing bundle.

Description

Výnálex. is related to the connection of transmission fields at the switching stage of a telephone exchange, comprising a group of at least thirteen selector racks in which a free exit is sought from the rack from a rest position v; ten rotational steps are cast and whose rotational steps are associated with fifteen exits from the stand so that the selectors in the stand are divided into two mutually exclusive groups and the first rotational step through the fifth rotational step of the first group of selectors is connected to the first exit to the fifth exit of the stand , the first pivot step to the fifth pivot step of the second group of selectors are associated with the eleventh exit to the fifteenth exit of the rack, and the sixth rotation step to the tenth rotation step of all selectors in the rack are associated with the sixth exit to the tenth exit of the rack.

The telephone connection between the two subscribers of the telephone network is established from the calling subscriber to the called subscriber, as a rule, via the connection stages located in the telephone exchanges. The connecting stage is formed, for example, by a group of racks with selectors. The connecting stage has entrances and exits. The incoming lines are permanently connected to the inputs of the switching stage, after which the telephone connection is extended to the * switching stage. Outgoing lines are permanently connected to the exits of the connection stage, after which the telephone connection continues to other connection stages of the telephone network. * The connection stage connects the incoming line with a suitable outgoing line, thus connecting the input with a suitable exit.

The outgoing links of the coupling stage are grouped into outgoing bundles, each outgoing bundle extending from the coupling stage to the inputs of the next coupling stage. The number of exits of the coupling stage connected to the uplink bundle is generally greater than the number of lines of the uplink bundle. Therefore, an average of several exits of the connection stage is permanently connected to one outgoing beam line. This connection takes place in the gearbox.

The transmission field to the outgoing bundle comprises the exits of the coupling stage, the number of which is, for example, fifteen times the number of racks in the transmission field, and the lines between these exits. The jumper is the wire connection of the two exits of the transmission field. If more than two transmission field exits are connected in series by jumpers, a tandem is created. 'The tandem begins at the exit to which the outgoing beam line is connected. The gearbox is mounted on the side of the intermediate distributor fitted with vertical pointed tapes. Exits of the connecting stage are connected to the tips.

-2242 403

Gearbox jumpers are mounted between the tips. The outgoing beam line is permanently connected to some of these peaks.

The following requirements are placed on a good transmission field:

- good throughput for telephone calls,

- easy design in projection,

- regular involvement,

- economy in material consumption,

- the possibility of making relatively simple changes to the transmission field without impairing its good throughput,

- great crosstalk attenuation.

Good throughput is the most important feature of the transmission field. In the gearbox with the selector racks, the individual exits are not equally operationally loaded. Exits which are associated with rotating steps with a smaller sequence number in voters are preferably occupied over exits that are associated with rotating steps with a larger sequence number in voters. In such transmission fields, a suitable escalation is a decisive factor in their good throughput, in that multiple traffic exits are connected to the outgoing beam line either individually or fewer per circuit than less exits. The operational throughput of the transmission field also improves the uniformity in the interconnection of the individual racks in the transmission field. The gear box is easier proposes, if developed poison ^x clarity, simple design methodology and, if there are various graphical tools. Regular wiring of the transmission field is advantageous for installation and maintenance work, as it facilitates schematic orientation and realization of the transmission field. Workers remember the engagement and do not often need to consult the documentation. The transmission field is economical in material consumption if the sum of the lengths of all jumpers in the transmission field is as small as possible. Easily making changes to the transmission field is a very important requirement for the transmission field, since these changes are made quite often due to changes in the telephone network. It is desirable that as many jumpers remain as possible when changing the transmission field. However, its throughput shall not be reduced. These requirements for the transmission field contradict each other, so the design of the transmission field is always a compromise.

The main disadvantages of the prior art transmission fields are that they were designed individually only according to their 3242,403 rr parameters - according to the number of racks and the number of outgoing beam lines. The transmission fields of similar or even identical parameters often had significantly different connections. In order to ensure good operational throughput of the transmission field, the design principles should respect the grading and uniformity of interconnection of the individual racks with each other. However, the design was not examined by computer modeling, so the actual throughput of the proposed transmission field was only hypothetical. Gearbox design was laborious. Although designers were careful about the wiring of the gearbox, the design was relatively easy to make in the future, as the design field was not up to date. It was difficult to control the economy in material consumption. The mounting of the gearbox on the intermediate distributor was complicated by the fact that each gearbox had a different connection. Similar difficulties were encountered in the maintenance of operated transmission fields in the control panel. Repeated changes in the operated transmission field generally led to a gradual deterioration in its throughput, as it was not viable to remodel the entire transmission field due to a small change in the telephone network.

The above-mentioned disadvantages are overcome by the connection of the transmission fields according to the invention, which consists in that in the transmission field to the outgoing bundle with a number of lines equal to the number of racks in the transmission field, the outgoing bundles are connected one by one to the first outlet of all the racks. the transmission field and the other exits of the transmission field are connected to these lines in a number of racks of identical tandems starting at the first exit of all racks and repeating cyclically on individual racks, the last rack in the transmission field being considered adjacent to the first rack.

In accordance with the invention, a transmission array with a number of lines in the outgoing bundle equal to the number of racks in the transmission field is the basic circuit from which the connection of transmission fields with the same number of racks but with more lines in the outgoing bundle is derived. This derives from the fact that, with increasing number of lines connected to the transmission field, the first jumper of all tandems in the transmission field, then the second jumper of all tandems, etc., are gradually omitted from the basic circuit, until the jumper of all tandems in the transmission field. Jumpers with the same serial number

242 403

-4-.

they are omitted evenly across the transmission field for different tandems.

To the east, which is the beginning of a separate part of the tandems, one outgoing bundle line is always connected.

The main advantages of the invention are that the connection of the transmission fields according to the invention comprises most of the transmission fields at the coupling stage of the type mentioned above, which may occur in practice. Each transmission field is well operationally permeable, which is achieved by suitable gradation and relatively uniform interconnection of the individual racks with each other. The good operational throughput of the transmission fields of the invention has been verified by computer modeling. The transmission fields have a regular and well-arranged wiring, which facilitates assembly work and maintenance, and is economical in material consumption. The high crosstalk attenuation is achieved by minimal concurrency of the jumpers on the intermediate switchboard, which is prescribed for assembly.

The even greater effect of engaging the transmission fields according to the invention is achieved by the fact that all transmission fields form a uniform wiring system. They are similar to each other, so that the change of one transmission field to another is made with a minimum of changes in the wiring of the existing transmission field and without a noticeable change in good throughput. Assembly work in the case of changes in the transmission field is also facilitated by the fact that in the transmission fields according to the invention it is possible to prescribe the assembly order of the individual jumpers, which is the opposite order of their possible omission when increasing the number of lines. Cyclicity in the connection of transmission fields according to the invention facilitates the change in the number of racks in the transmission field - the jumpers are removed only between the first and last racks in the transmission field and the added racks are connected to the cyclical connection of the other jumpers.

All transmission fields can be pre-processed into a catalog from which the designer traces his particular transmission field into the project. The catalog simplifies the transmission field documentation. The catalog will enable machine processing of the design of the gearbox as well as the elaboration of its laborious documentation on the computer, flawlessly and in the final graphic design into the project. When you develop your gearbox documentation, your computer will make it easier to extend this documentation with additional information that speeds up assembly and maintenance work. Administrative and researchers will find in the catalog, for study purposes, the involvement of transmission fields that have not yet been designed.

In the following, the invention is explained in detail by way of example with reference to the drawing. FIG. 1 is a block diagram showing the connection stage where the inputs are, the selector racks are, e.g., fifteen exits from the rack, the transmission fields, the outgoing conduit bundles.

FIG. 2 schematically shows a ten-step selector. FIG. 3 schematically illustrates two groups of selectors in a rack and the connection of the rotational steps of these groups of selectors to the fifteen rack exits indicated by the reference numerals in FIG. 3 on the right. In the transmission field wiring diagram, the rack exits are shown in Fig. 4, the column of reference numerals in Fig. 4 on the left indicates the rotational steps of the selectors of both groups shown in Fig. 3. Fig. 4. The individual racks are indicated by the reference numbers in the row above the transmission field image, the vertical column of the left reference numbers indicates the rotational steps of the selectors of the two groups in the racks, in accordance with Fig. 3. starting at the first exit of the first rack in the transmission field, where an outgoing line is connected thereto. This exit is indicated by an arrow. FIG. 6 schematically shows a transmission field with thirteen racks into an outgoing bundle of thirteen lines. The transmission field contains thirteen tandems as shown in Fig. 5. • The stands and rotating steps are the same as those in Fig. 5. The exits to which the outgoing beam line is connected are indicated by an arrow. Figure 7 schematically shows a transmission field with thirteen racks into an outgoing bundle of sixty lines. The designations of the stands and the rotating steps are the same as those in Fig. 5 and Fig. 6. The exits to which the outgoing bundle line is connected are indicated by an arrow.

Gearbox with thirteen racks into an outgoing bundle of thirteen lines / fig. 6 / is connected by thirteen identical tandems, which are repeated cyclically on the transmission field stands.

Each tandem connects fifteen exits of the transmission field with fourteen jumpers. It starts at the first exit 16 of the respective rack where the outgoing bundle line is connected to it. In the diagram of FIG. 6, these exits are indicated by an arrow. In the cycle of recurring tandems on the racks, the last, thirteenth rack 57 in the transmission field is considered adjacent to the first rack 45 as if it were

-6242 403 gear box drawn on cylindrical face. By describing the engagement of the first tandem in the transmission field starting at the first exit 16 of the first rack 40, the engagement of the entire transmission field will be described / FIG. 6 /.

The first transmission field tandem / fig. 6 / is shown in Fig. 5. Has the first exit 16 of the first rack 45 connected via a sixth jumper 36 to the second exit 17 of the fourth rack 48 with three racks to the right, whose second exit 17 is connected via a third jumper 33 to the third exit 18 of the second rack 46 two racks on the left "whose third exit 18 is connected via the eighth jumper 38 to the fourth exit 19 of the third rack 47 one rack to the right, whose fourth exit 19 is connected via the twelfth jumper 42 to the fifth exit 20 of the seventh rack 51 the fifth exit 20 is connected via the second jumper 32 to the sixth exit 21 of the fifth rack 49 by two racks to the left, whose sixth exit 21 is connected via the tenth jumper 40 to the seventh exit 22 of the sixth rack 50 by one rack to the right. via the fifth jumper 35 with the eighth exit 23 of the eighth rack 52 by two racks to the right, whose eighth exit 23 is connected via the eleventh for a connector 41 with the ninth exit 24 of the eleventh rack 55 with three racks to the right, whose ninth exit 24 is connected via the fourteenth jumper 44 to the tenth exit 25 of the thirteenth rack 57 with two racks to the right. the seventh rack 51 by six racks to the left, whose fifteenth exit 30 is connected via thirteenth jumper 43 to the fourteenth exit 29 of the third rack 47 by four racks to the left., whose fourteenth exit 29 is connected via the ninth jumper 39 to thirteenth exit 28 a stand on the left, whose thirteenth exit 28 is connected via fourth jumper 34 to the twelfth exit 27 of fourth rack 48 by two racks to the right, whose twelfth exit 27 is connected via seventh jumper 37 to eleventh exit 26 of first rack 45 with three racks to the left tandem terminated.

The second tandem in the transmission field / fig. 6 / starts at the first exit 16 of the second rack 46, where the outgoing bundle line is connected thereto. The second tandem wiring is analogous to the first tandem wiring described above, except that the sequence number of the tandem exits of the exits is one more, except in the tenth exit 25 of the first tandem 45, since in the cyclic wiring the first tandem is considered following the last, thirteenth 57. Similarly, the connection of all the remaining 7242 tandems in the transmission field shown in Figure 6 can be described. Since in the transmission field shown in Figure 6 the number of lines is equal to the number of racks, its connection is simultaneously the basic connection for all field with thirteen racks, but with more lines in the outgoing bundle than thirteen lines. One of them is the transmission field with thirteen stands and sixty lines in the outgoing bundle shown in Fig. 7. 7), thirteen outgoing bundle wires are connected to the first exit 16 of all racks, as in the basic wiring / FIG. 6 /. The lines fourteenth to twenty-sixth are connected to the eleventh exit 26 of all racks and in all thirteen basic circuit tandems / fig. 6) the first jumper 31 is omitted so that the tenth exit 25 and the fifteenth exit 30 of the respective racks are disconnected in all tandems. The twenty-seventh to three-ninth lines are shown in FIG. 7 connected to the sixth exit 21 of all racks and in all the basic wiring tandems / FIG. 6) the second jumper 32 is omitted, thus the fifth exit 20 and the sixth exit 21 of the respective racks are still disconnected. The forty-fifty-second lines are connected to the third exit 18 of all racks and in all tandems of the basic wiring in FIG. 6 / the third jumper is omitted. 33, the second exit 17 and the third exit 18 of the respective racks are thus still disconnected. The remaining lines 51-60 are connected to the thirteenth exit 28 of the first rack 45, the second rack 46, the fourth rack 48, the fifth rack 49, the seventh rack 51, the tenth rack 54, the eleventh rack 55 and the thirteenth rack 57. /giant. 6 /, to the east of which the last eight lines have been connected, the fourth jumper 34 is omitted. In the first tandem, the twelfth exit 27 of the fourth rack 48 and the thirteenth exit 28 of the second rack 46 are disconnected. In the fourth tandem, the twelfth exit 27 of the seventh stand 51 and the thirteenth exit 28 of the fifth stand 49 are disconnected. In the sixth tandem, the twelfth exit 27 of the ninth stand 53 and the thirteenth exit 28 of the seventh stand 51 are disconnected. In the tenth tandem, the twelfth exit 27 of the thirteenth stand 57 and the thirteenth exit 28 of the eleventh stand 55 are disengaged in the tenth tandem. 46

-8242 403 and the thirteenth exit 28 of the thirteenth stand 57. In the thirteenth tandem, the twelfth exit 27 of the third stand 47 and the thirteenth exit 28 of the first stand 45 are disconnected 45 ·

242 403

Claims (3)

SUBJECT OF THE INVENTION 1. Connection of transmission fields at a telephone exchange switching stage comprising a group of at least thirteen selector racks in which a free exit from the rack is sought from a rest position in a natural sequence of ten rotational steps and whose rotational steps are associated with fifteen exits from the rack so that the voters in the 100th January are divided into two mutually exclusive groups, and the first rotary step through the fifth rotary step of the first group of selectors are associated with the first exit to the fifth exit of the rack; the fifteenth exit of the rack and the sixth rotation step to the tenth rotation step of all the selectors in the rack are associated with the sixth exit to the tenth exit of the rack, characterized in that the transmission field to the outgoing beam with a number of lines equal to the number of racks in the transmission field are lines outgoing sv a line is connected one by one to the first exit (16) of all racks in the transmission field and the other exits of the transmission field are connected to these lines in a number of racks of identical tandems starting at the first exit (16) of all racks and repeating cyclically on individual racks. the last rack in the transmission field is considered adjacent to the first rack. Wiring according to claim 1, characterized in that the first tandem in the transmission field has a first exit (16) of the first rack (45) connected via a sixth jumper (36) to the second exit (17) of the fourth rack (48) by three racks to the right. whose second exit (17) is connected via a third jumper (33) to the third exit (18) of the second rack (46) by two racks to the left, whose third exit (18) is connected via the eighth jumper (38) to the fourth exit (19) (third stand) 47 one stand to the right whose fourth exit (19) is connected via a twelfth jumper (42) to the fifth exit (20) of the seventh stand (51) by four stands to the right whose fifth exit (20) is connected via The second jumper (32) with the sixth exit (21) of the fifth rack (49) by two racks on the left, whose sixth exit (21) is connected via the tenth jumper (40) to the seventh exit (22) of the sixth rack (50) by one rack right, whose seventh exit (22) is connected via the fifth jumper (35) to the eighth m by the exit (23) of the eighth rack (52) by two racks on the right, whose eighth exit (23) is connected via the eleventh jumper (41/9) by the ninth exit (24) of the eleventh rack. (55) o three stands on the right, whose ninth exit (24) is connected via the fourteenth jumper (44) to the tenth exit (25) of the thirteenth stand -to242 403 (57) o two racks to the right whose tenth exit (25) is connected via a first jumper (31) to the fifteenth exit (30) of the seventh rack (51) o six racks to the left whose fifteenth exit (30) is connected via thirteenth jumper (43) ee fourteenth exit (29) third rack (47) o four racks left, whose fourteenth exit (29) is connected via ninth jumper (39) with thirteenth exit (28) second rack (46) one rack left whose thirteenth exit (28) is connected via a fourth jumper (34) to the twelfth exit (27) of a fourth rack (48) two racks to the right, whose twelfth exit (27) is connected via a seventh jumper (37) to the eleventh exit / 26 / first rack / 45 / three racks to the left where the first tandem is terminated. Wiring according to items 1 and 2, characterized in that lines with a sequence number greater than the number of racks in the transmission field and not more than twice that number are connected one at a time to the eleventh exit (26) of the individual racks uniformly along the transmission field. the tandem to which the line is connected are disconnected by the tenth exit (25) and the fifteenth exit (30) of the respective hundreds by omitting the first jumper (31), a line having a sequence number greater than twice the number of racks in the transmission field are connected one by one to the sixth exit (21) of the individual racks evenly over the transmission field and in the tandem to which the line is connected, the fifth exit (20) and the sixth exit (21) of the respective racks are disconnected by omitting the second jumper (32) a sequence number greater than three times the number of racks in the gearbox and not more than four multiples of this number are connected one by one to the third exit (18) of the individual racks evenly over the transmission field and in the tandem to which the line is connected the second exit (17) and the third exit (18) of the respective racks are disconnected by omitting the third jumper (33) , lines with a sequence number greater than four times the number of racks in the transmission field and no more than five times that number are connected one at a time to the thirteenth exit (28) of the individual racks equally over the transmission field and twelve disconnected in the tandem to which the line is connected exit (27) and the thirteenth exit (28) of the respective racks by omitting the fourth jumper (34), lines with a sequence number greater than five times the number of racks in the transmission field and not more than six times this number are connected one by one to the eighth exit Inotent dispensers evenly across the gearbox and in tandem, -11242 403 to which the line is connected are disconnected · the seventh exit (22) and the eighth exit (23) of the respective racks by omitting the fifth jumper (35), a line with a sequence number greater than six times the number of racks in the transmission field and no more than seven times of the racks are connected one by one to the other outlet (17) of the individual racks evenly over the transmission field and in the tandem to which the line is connected, the first outlet (16) and the second outlet (17) of the respective racks are disconnected by omitting the sixth jumper (36). with a sequence number greater than seven times the number of racks in the transmission field and no more than eight times that number, are connected one at a time to the twelfth exit (27) of the individual racks equally over the transmission field and 11th exit are disconnected in the tandem to which the line is connected (and the twelfth exit (27) of the respective racks by omitting the seventh jumper / 3) 7 /, lines with a sequence number greater than eight times the number of racks in the transmission field and no more than nine times that number are connected one at a time to the fourth exit / 19 / of individual racks evenly across the transmission field and disconnected in the tandem to which the line is connected the third exit (18) and the fourth exit (19) of the respective racks by omitting the eighth jumper (38), lines with a sequence number greater than nine times the number of racks in the transmission field and not more than ten times this number are connected one at a time to the fourteenth exit The thirteenth exit (28) and the fourteenth exit (29/) of the respective racks are disconnected uniformly over the transmission field and in the tandem to which the line is connected. The respective racks are omitted by the ninth jumper (39), a line with a sequence number greater than ten times the number and no more than eleven times that of the racks are connected one at a time to the seventh exit (22) of the individual racks evenly across the transmission field and in the tandem to which the line is connected, the sixth exit (21) and the seventh exit (22) of the respective racks are disconnected by omitting the tenth jumper with a sequence number of more than 11 times the number of racks in the transmission field and not more than 12 times that number, are connected one at a time to the ninth exit (24) of each rack equally over the transmission field and tandem to which the line is connected; the eighth exit (23) and the ninth exit (24) of the respective racks are disconnected by omitting the eleventh jumper (41) of the line having a sequence number greater than twelve times the number of racks in the transmission field and not more than thirteen times / po-12242 403 rotary racks evenly across the transmission field and in the tune to which the line is connected, the fourth exit (19 / β fifth exit / 20) of the respective racks are disconnected by omitting the twelfth jumper (42), the line having a serial number greater than thirteen times the number of racks in the transmission field and not more than fourteen times this number are connected one at a time to the fifteenth exit (30) of the individual racks equally over the transmission field and in the tandem to which the line is connected the fourteenth exit (29) and the fifteenth exit (30) / respective racks by omitting thirteenth jumpers y / 43 /, lines with a sequence number greater than fourteen times the number of racks in the transmission field and no more than fifteen times that number are connected one at a time to the tenth exit (25) of each rack equally over the transmission field and tandem to which the line is connected the ninth exit (24) and the tenth exit (25) of the respective racks are disconnected by omitting the fourteenth jumper (44).