• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
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  • 引用文献
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  • 优先权
    • 专利摘要:
    1519807 Trunking in TDM exchanges SIEMENS AG 13 Oct 1975 [14 Nov 1974] 41780/75 Heading H4K The switching network disclosed in Specification 1,519,806 is modified such that its second and third stages comprise multiple space division switches. A plurality of such networks may be combined in a single exchange.
    公开号:SU912066A3
    申请号:SU752189619
    申请日:1975-11-14
    公开日:1982-03-07
    发明作者:Шлихте Макс
    申请人:Сименс Аг (Фирма)；
    IPC主号:
    专利说明:

    (54) FOUR-WIRE SWITCHING FIELD
    COMMUTATIONS WITH MULTI-STAGE REVERSIBLE
    I
    The invention relates to telecommunications and can be used in switching systems with centralized control.
    A switching wire switching circuit with a multi-band reversible grouping is known to contain the first switching stage, which is connected to one-channel subscriber lines, divided by grouping the switching field into groups and subgroups for subscribers, connected to the first switching stage through connecting channels with the second switching stage containing coordinate connectors, which is connected to the third switching stage, also containing coordinate 1b connectors 1.
    However, the known field does not allow a large integration of individual parts of the tract.
    The purpose of the invention is to facilitate integration by reducing the volume of the switching field, ensuring the possibility of switching ICM subscribers and connecting to single-channel subscriber lines. 25 GROUPING
    This goal is achieved by the fact that a four-wire switching switching field with multi-stage reverse grouping contains the first switching stage, which is connected to single-channel subscriber lines, which are divided by grouping the switching field into groups and subgroups for subscribers, and the first switching stage is connected via connecting channels with the second switching stage, which contains coordinate connectors, is connected to the third switching stage, which also contains The natural connectors are designed as a PCM switching field with a temporary seal, in which the first switching stage is formed by subscriber circuits that are individually assigned to a low-frequency (LF) line and contain a LF / PCM codec with a YCM-word register and a channel time switch, while controlling the inputs of the time switch of the channels and the PCM-register are connected to the corresponding outputs of the U1D set, and the subscriber circuits are connected to the line with the temporary compaction of the corresponding subgroup, each and lishi time division connected to the input of the respective second connector coordinate switching stage, wherein the control inputs of the switches of switching points connected to corresponding retaining vyhodaMJT koJvffllekta, and inputs coordinate connectors third switching stage connected to the output of each second stage coordinate connector kommutadii.
    In addition, the individual outputs of each coordinate connector of the third switching stage are connected to the output of the corresponding coordinate connector of the third step of the commutation of the ana; damned other switching fields.
    In order to enable switching of MKM subscribers B, the switching field introduced subscriber switching schemes containing only the PCM register and the time switch of the channels. To provide a connection to single-channel subscriber lines formed by the inputs (multiplexer outputs) of the demultiplexer, the individual inputs (multiplexer outputs) of the demultiplexer are connected to different groups of the first switching stage. The drawing shows a structural electrical circuit switching field. Switching field 1 with reverse grouping, divided into g groups, v subgroups of t outputs, contains single-channel subscriber lines 2, the first stage of 3 commadia consisting of subscriber circuits 4 containing the LF / PCM codec 5, the PCM-word register 6, temporary switch 7, holding kit 8, line 9 with temporary seal, second switching stage 10, consisting of coordinate connectors 10 ,, ..., Yul, line 11 with temporary sealing, third switching stage 12, consisting of coordinate connectors 12, , ..., 12 . The switching of the field (s) is carried out as follows. The switching field 1 can also be in its development a part of the commutation path covering several similar switching fields 1, ..., 1c switching, in which the individual outputs of each coordinate connector with temporary compaction of the third stage 12 of the commune of the 1st h 1 switch are connected every time And the output of the corresponding co-ordinate connector with the temporary consolidation of the third stage 12 of the commutation of individual osg. fields Ii, ..., IK communi
    For a switching field L, we are talking about a four-wire switching switching field having a multi-step reverse grouping for a maximum of l-vvg of single 2iti subscriber lines connected to the first stage of the 3 switching lines, which are divided by grouping the switching field 1 into g groups consisting of each V subgroups for B vyshodov. First stage
    0 3 switching, equipped with means of commu- nication: commuting through the crossing of lines, switching the direction of transmission, is connected via Z V g connecting channels to the second stage 10 of commutation. This field
    权利要求:
    Claims (4)
    [1]
    5 commutation is formed as a switching field with PCM and temporary compaction, in which the first stage 3 contains a certain number of subscriber circuits 4, respectively. low frequency (LF) lines connected in zero 1 of the switch. Subscriber circuit 4 has a PCM codec 5 LF / PCM with a PCM register 6 and a temporary channel switch 7. Subscriber circuits 4 are divided into g groups of 4 (jve subscriber circuits, each of which contains v subgroups 4,, ...,; 4., v, ..., Q; 4 (And, ..., 4 4 ; 4 (v, ..., 4gveable switching circuits, individually corresponding to one single-channel subscriber line 2 each time. The switch 7 of the time channel of each subscriber switching circuit 4 is formed as a cross switch to cross the lines in order to switch the transmission direction. Except In addition, each subscriber switching circuit 4 may have a holding com The set 8 is in the form of a circulation memory. At each time, the subscriber switching circuits 4, forming a subgroup, are connected to a time-compressed line with z time channels belonging to the corresponding subgroup. Thus, in the switching field 1 with PCM and time-compaction, „3 of the drawing, the subscriber circuits 4 /,, ... 4 of the commutadia are connected to the time-compressed line and the subscriber circuits1 4, /, ..., of the commutation - to the 9 / line (in the case of temporary compaction, subscriber 4d , ..., 4l switching with a line of 9 dx) since time with a compact seal and subscriber circuit, ..., line 9av with a temporary seal. These V g lines, ..., 9av with temporary compaction with connecting channels, passing between the first switching stage 3 and the second switching stage 10, are each occupied by a group of temporary KaHajroB pulses in the presence of z connecting channels. For example 1024 connecting channels between the first and second switching stages 3 and 10, g 8 groups of single-channel subscriber lines 2 connected to the first switching stage 3, each with V 8 subgroups with 12 lines each, could be loaded with separate lines with time multiplexing each with a set of time channel pulses, for 16 time channels. Each of the lines 9,, .., 9c (y with a temporary seal is supplied to the input of the coordinate connection lOj with a temporary seal of the second stage 10 of the switchboard belonging to the corresponding group of subscriber circuits 4-j / (/ (..., 4gve Similarly, lines 9, ..., 9 with temporary compaction in the commutation field 1 with PCM and temporary compaction are connected every time to one input of the coordinate connection lOj with PCM and temporary connection belonging to the group of subscriber circuits 4, ... 4, ng switching, while the lines are 9qi, ..., 9 (with a temporary seal connected every time to the input of the coordinate connector 10 with PCM and temporary compaction of the second switching stage 10 belonging to the group of single-channel subscriber lines 2 s, ..., Coordinate connectors 10 ,, ..., 10 "with temporary compaction have accordingly each times v inputs and besides this g outputs. In the drawing, for the coordinate connector 10) with a temporary soft spot, it is indicated that to intersect the input lines with the output lines of the coordinate connector 10j with a temporary seal, pairs are provided switching points, which in turn can be controlled by holding the set B of the junction connector in the time intervals allocated for each connection: Finally, the switching field 1 with time sealing and PCM shown in the drawing has the third switching level 12 also with g coordinate connectors 12i 12a with a temporary seal, each of which has inputs and which are connected by their g-inputs each time with the output of one of the 9 coordinate connectors lOi, ..., 10 (with a temporary seal of the second stage 10 to mmutatsii line by TJ - 49 mennym seal. It is possible to connect the g.v-l single-channel subscriber lines 2 to the switching field 1 with PCM and temporary compaction shown in the drawing. One can have a greater number of single-channel subscriber lines. lines 2 based on the fact that the switching field 1 is a part of the switching path containing several similar switching fields 1 |, ..., 1 switching, in which the individual outputs of each coordinate connector 12 |, ... 12 with temporary compaction of the third stage 12 krmmutakhsch The switching field 1 is connected to the output of the corresponding coordinate connector with the time multiplex of the third switching level of the other switching fields. The corresponding connecting paths are passed in the commutation field 1 with PCM and temporary multiplexing in a generally known manner for commutator fields with reverse grouping: single-channel subscriber lines, which (for example, single-channel subscriber lines 2 and connected via their subscriber circuits (4 and ,) on the same line with a temporary seal (9,), i.e. which belong to the same subgroup of single-channel subscriber lines 2, are connected to each other through a corresponding line with a temporary seal (9), and this s Start shortly, passing only within the first switching stage 3. Single-channel subscriber lines, which (such as single-channel 2gve subscriber lines belong to the same group, (lo not to the same (same subgroup of single-channel subscriber lines are connected to each other through a litty with a temporary compaction (9d and 9gv) i belonging to the respective subgroups, and through the coordinate co-connector 10 Q with a temporary compaction belonging to the corresponding group of single-channel subscriber lines. Connections between two single-channel subscriber lines, which (such as single-channel subscriber lines and 2 do not belong to the same single-channel subscriber lines, pass through the correspondingly owned line with a temporary seal. (9x) UI 9c.) To respectively ) to the dinate connectors (10 and 10 () of the second switching stage 10 and from there further to the coordinate connector from the third switching stage 12, for example, through the lines llxfq ОЯ) temporary sealing to the coordinate connector 12 (where the the last lines with temporary compaction are connected to each other through an intermediate line in the time interval reserved for the corresponding connection. Finally, the connections between single-channel subscriber lines of various fields of the mutation (1, 1 |, ..., IK-) just up to the coordinate connector with temporary compaction of the third step 12 com mutation and from there further to the corresponding coordinate case with a temporary seal, relating to another field of commutator. In the case when single-channel subscriber lines 2 no longer have a low-frequency signal, but an PCM signal, the PCM decoder decode deviating from the ratios indicated in the drawing can be excluded from the corresponding commutation circuit. When connecting a line with PCM and temporary compaction to a switching point with PCM and temporary compaction, a multiplexer / demultiplexer is provided, the individual inputs / outputs of which are connected in this way to subscriber switching circuits of various subscriber switching field groups. Claim 1. Four-wire switching field switching with multi-stage reverse grouping, containing the first switching stage, which is connected to the HbivBi subscriber line single-channel, which are divided by grouping the switching field into groups and subgroups for subscribers, and the first switching stage is connected via connecting channels to the second stage switching, containing coordinate connectors, which, connected to the third stage of switching, also containing coordinate connectors, characterized in that, in order to facilitate the integration of p) pgem reducing the volume of the switching field, it is designed as an PCM switching field from the times (P. 1M seal, in which the first switching level is formed by subscriber circuits that are individually assigned to a low-frequency (LF) line and contain LF / PCM codec with PCM-register and temporary channel switch, while the control inputs of the temporary channel switch and the PCM-register are connected to the corresponding outputs of the holding set, and the subscriber circuits are connected with a line with a temporary seal of the corresponding subgroup, each of the lines with a temporary seal being connected to the input of the corresponding coordinate connector of the second switching stage, in which the control inputs of the switches of switching points are connected to the corresponding outputs of the holding set, and the inputs of the coordinate connectors of the third switching stage are connected with the output of each coordinate connector second stage switching.
    [2]
    2. The commutation field according to p. I, of tl i-. So that the individual outputs of each coordinate connector of the third switching stage are connected to the output of the corresponding coordinate connector of the third switching stage of similar other switching fields.
    [3]
    3. The switching field of claim 1, which is based on the fact that, in order to enable the switching of PCM subscribers, subscriber switching schemes have been introduced that contain only the PCMs register and the time switch of the channels.
    [4]
    4. The switching field according to claim 3, is designed so that, in order to provide connection to single-channel subscriber lines formed by the inputs (multiplexer outputs) of the demultiplexer, the individual inputs (outputs of the multiplexer) demultiplexer are connected to different groups of the first switching stage. Sources of information taken into account in the examination 1. Informationen Fernsprech Vermittlungstechnik, 1970, № 1/2, S. 28-33, 65-73 (prototype).
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    同族专利:
    公开号 | 公开日
    AU8597875A|1977-04-28|
    LU72825A1|1975-09-29|
    BE835599A|1976-05-14|
    JPS598999B2|1984-02-28|
    DE2454090B1|1976-02-12|
    CH607517A5|1978-12-29|
    JPS5173309A|1976-06-25|
    US4045617A|1977-08-30|
    FR2291673B1|1982-04-23|
    DE2454090C2|1976-09-23|
    SE7512842L|1976-05-17|
    ATA652075A|1979-07-15|
    GB1519807A|1978-08-02|
    FR2291673A1|1976-06-11|
    SE419928B|1981-08-31|
    IT1048621B|1980-12-20|
    AT355097B|1980-02-11|
    NL7512665A|1976-05-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    BE791917A|1971-11-25|1973-03-16|Post Office|IMPROVEMENTS TO ADIVISION MULTIPLEX TELECOMMUNICATION SYSTEMS OVER TIME|
    DE2308855C2|1973-02-22|1974-12-12|Siemens Ag, 1000 Berlin Und 8000 Muenchen|Circuit arrangement for the detection of double connections in time division multiplex digital telecommunications switching systems, in particular PCM telephone switching systems|FR2404982B1|1977-09-30|1980-04-18|Materiel Telephonique|
    US4201891A|1978-03-17|1980-05-06|International Telephone And Telegraph Corporation|Expandable digital switching network|
    US4201889A|1978-03-17|1980-05-06|International Telephone And Telegraph|Distributed control digital switching system|
    DE2819126C2|1978-04-29|1979-11-22|Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt|Multi-level switching network with reverse grouping for a PCM switching system|
    FR2455414B1|1979-04-27|1982-04-02|Materiel Telephonique|
    DE2930420C2|1979-07-26|1988-12-01|Siemens Ag, 1000 Berlin Und 8000 Muenchen, De|
    DE3003290A1|1980-01-30|1981-08-06|Siemens AG, 1000 Berlin und 8000 München|DIGITAL TELECOMMUNICATION SYSTEM|
    DE3425720C2|1984-07-12|1993-03-04|Siemens Ag, 1000 Berlin Und 8000 Muenchen, De|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19742454090|DE2454090C2|1974-11-14|1974-11-14|Four-wire through-switching, a multi-stage reverse grouping having switching matrix|
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