SU856035A1 - Switching system autotrainer - Google Patents

Description

(54) SWITCHING AUTOTRENER

 The invention relates to communication technology and can be used in automatic telephone exchange systems (.ATS). The auto train of the switching system is known, which contains a control unit whose output is connected to the first input of the frequency signal receiver, the inputs of the source of the frequency signal and the dial sensor of the communication direction number, the outputs of which are connected to the second I third input of the frequency signal receiver and the first and second inputs of the search stage switching system {l. However, the prior art device does not provide sufficient noise immunity and does not allow them to be quickly corrupted when determining the number of the outgoing trunk line manually by the operating personnel. The purpose of the invention is to increase the fast response when searching for damage and noise immunity. To achieve this goal, the autotrener of the switching system contains a control unit whose output is connected to the first input of the frequency signal receiver, the inputs of the frequency signal source and the pulse sensor, and the set of the communication direction number, the output of which is connected to the second and third inputs of the frequency signal and the first and second inputs of the search unit of the switching system, input and output transformers, as well as an additional search unit of the switching system, with the output source The frequency signal terminal is connected to the primary winding of the input transformer, the first output of the secondary winding of which is connected to the corresponding input of the search unit of the switching system, corresponding to the output of which through the additional search stage of the commutating system is connected to the first output of the primary winding of the input transformer, the second output of which is connected to The second output of the secondary winding of the input transformer, and the second and the second inputs of the frequency signal receiver are connected to on the output winding of the transformer;

At the same time, between the inputs of the search unit of the switching system, the first choke is inserted, to the middle point of which the first output secondary winding of the input transformer is connected, and between the outputs of the additional search stage of the switching system, a second choke is inserted, to the point of which the first output of the primary winding of the output transformer is connected.

The drawing shows a block diagram of the proposed device. The switching unit autotrener contains a control unit 1, a frequency signal receiver 2, a frequency signal source 3, a dial pulse number sensor 4, a switching system search stage 5 having an input 6, an output 7, conversational wires 8 and 9, an input transformer 10, having a primary winding 1I and a secondary winding 12 with a first terminal 13 and a second terminal 14, an output transformer 15, having a primary winding 16 with a first terminal 17 and a second terminal .18 and a secondary winding 19, an additional step 20 of switching systems having an output 21, an outgoing connection 22, as well as a first choke 23 with a midpoint 24 and a second choke 25 with a midpoint 26.

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Switching system auto trainer 1 1 works as follows.

Under the influence of unit 1, the control unit of the NIL, the sensor of impulse dialing of the direction of communication, acts on the devices of stage 5 of the search for the switching system and ensures the installation of a control call in the required direction. After the sensor 4 issues the entire number required to establish the control call, it is disconnected from the spoken wires 8 and 9 of the input 6 of the stage 5 of the switching search

system, connecting the receiver 2 by the control unit 1. In this case, in the control unit 1, a time delay is included. If during the time for which this delay is calculated, the frequency signal receiver 2 does not receive the required frequency signal from the source of the frequency signal set in the answering machine

PBX and similar source 3, the control unit 1 proceeds to the implementation of the task.

The absence of a frequency signal from a two-responder source during a specified time interval indicates that the control call has not been established. In this case, it is necessary to determine the number of the outgoing connecting line through which the connection was established, as well as to check the operability of all outgoing PBX devices that connected the auto trainer. to this outgoing line. For this task, the frequency signal receiver 2 under the influence of the control unit 1 is disconnected from the input 6 of the search stage 5 of the switching system and connected to the spoken wires 8 and 9 of the additional search stage 2U. The source 3 of the frequency signal under the influence of the unit 1 is connected to the speaker wires 8 and 9 to the input 6 of the stage 3 of the search for the switching system and supplies the frequency

signal to them. Under the influence of control unit 1, additional stu. stump 20 search begins alternately,.

Claims (2)

in a certain sequence, connect to all spoken wires 8 and 9 of output 7 of the step: 5 searches, which are connected to the outgoing connecting lines of the required control call for the direction of communication. In this case, at the output 21 of the additional step 20 scans, a frequency signal appears, which is fed to the input of the receiver 2, which is connected by command of the control unit 1 to stage 20. As soon as the frequencies 2 receives the frequency signal, the transmission source 3, the control unit 1 stops the connection of the auxiliary search stage 20 to the outputs 7 of the search stage 5. According to the condition of the electromagnets of an additional stew 20 of the search, it is possible to unambiguously determine the output number 7 of the step 5 of the search for a switching system, which is connected with the autotrain, i.e. the number of the outgoing trunk through which the control call passed. The indicated number of the outgoing connecting line enters the control unit 1, where it is recorded in a long-term memory of the device, for example, on an electrically controlled VAK machine or punched tape, in order to obtain stagistic information on the passage of control calls. As soon as the task of determining the number of the connecting line, through which the control call was not established, is completed under the influence of the control unit 1, the unspecified is connected and the auto trainer returns to its initial state. When the source 3 of the frequency signal is turned on by the control unit 1, a current flows through the winding 11 of the input transformer 10, and an alternating voltage corresponding to the frequency of the source 3 appears at the terminals 13 and 14 of the winding 12 of this transformer. However, this is. until i-ex until additional search step 20 connects, under the influence of control unit 1, the input circuit of frequency signal receiver 2 to that output 7 step 5 of search system switching, which was occupied by a control call, which was rejected for technical reasons In this case, alternating current flows through the winding 16 of the output transformer 15, which is fed to the input of the receiver 2 of the frequency signal through the winding 19 of this transformer. With the appearance of the frequency signal at the input of the receiver 2, the operation of the additional search stage 20 stops, however, the latter remains connected to the found stage 5 search output. Jari switching on the source 3 of the frequency signal through the winding 16 of the output transformer 15 current flows (in the case when the additional search stage 20 connects its output 21 to the output 7 of the search stage 5), and between the output between terminal 13 and the output windings of transformers IQ and 15 current flows simultaneously through both spoken wires 8 and 9. On wires 8 and 9 of input 6 of step 5 of the search, this signal is fed through the middle point 24 of the first throttle 23, and removed from the middle point 26 of the second throttle 25 to pin 17 of the winding 16 of the output t of the transformer 15. Thus, if at least one of the spoken wires 8 and 9 is intact, the current of the frequency signal flows through the winding 16 of the output transformer 15, and the receiver 2 of the frequency signal receives it. Claim 1. The autotrener of the switching system containing the control unit, you, whose course is connected to the first input of the frequency signal receiver, the inputs of the frequency signal source and the sensor of the dialing number of the communication direction, the codes of which are connected to the second and third inputs of the frequency signal receiver and the first and the second inputs of the Iskani stage of the switching system, characterized in that, for the purpose of speed performance in the search for Damage and noise immunity, input and output signals are entered mators, as well as an additional search stage for a commutation system, while the outputs of the frequency signal source are connected to the primary winding of the input transformer, the first output of the secondary winding of which is connected to the corresponding input of the search system of the switching system, the corresponding output of which is connected to the first through the output of the primary winding of the output transformer, the second output of which is connected to the sTopoMv output of the secondary winding of the input trans ormatora, and the fourth and fifth vhoam receiver frequency signal vtorichnal connecting a transformer output winding. 2. The auto trainer according to claim 1, that is, because between the inputs of the search system of the switching system, the first choke is inserted, to the middle point of which the first secondary winding of the input trlisormator is connected, and between the outputs of the additional switch search stage 78560358 rationale introduced the second po "Sources", The village, to the midpoint of which is the first output of the primary winding arrested in the "" "P" keys. 1. Application of the Federal Republic of Germany J 1963221, output transformer.kl.N. 04 M 3/26, 1976. (prototype).