SU1525938A1 - Device for monitoring switching systems - Google Patents

Abstract

The invention relates to communication technology. The purpose of the invention is to reduce the time and increase the accuracy of the control. The device contains sensors 1 ₁ - 1 _N test signal, consisting each of diodes 5 and 6, resistors 7 and 8 and transistor 9, analyzers 2 ₁ - 2 _N test signal, consisting each of diodes 10 - 13, resistors 14 - 17 and the transistor 18, comparators 3 and 4, as well as the controlled switching system 19. At the zero potential at the output of the analyzer 2, the presence / continuity of the / corresponding conversational path is judged. On the positive potential at one or both outputs of the analyzer 2, which exceeds the response threshold of the corresponding comparator 3 and 4, the absence / non-terminated state / conversational path is judged. At the same time, resistors 7 and 14 are current-limiting, and resistors 8 and 15 provide the specified operating mode of transistors 9 and 18. The device according to claim p. Formulas 2 and 3 are distinguished by the implementation of sensors 1 and analyzers 2. 2 Cp. f-ly, 1 ill.

Description

one

(21) 4360826 / 24-09

(22) 01/06/86

(46) 11/30/89. Bul 44

(72) M.K.Sid kov

(53) 621.395.3 (088.8)

(36) USSR author's certificate

 536619, cl. H 04 M 7/10, 1975.

(54) DEVICE .OLA OF CONTROL OF COMMUTATION SYSTEMS

(57) The invention relates to communication technology. The purpose of the invention is to reduce the time and control accuracy. The device contains sensors I, -, test signal, consisting

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each of diodes 5 and 6, resistors 7 and 8, and transistor 9, test signal analyzers consisting of diodes 10–13, resistors 14–17, and transistor 18, comparators 3 and 4, as well as controlled switching system 19. On zero potential at the output of the analyzer 2

analyzer 2, which exceeds the threshold of the corresponding comparator 3 and 4, is judged to be the absence (unallocated state) of the conversational path. In this case, resistors 7 and 14 are current-limiting, and resistors 8 and 15 provide a predetermined mode of operation for transistors 9 and 18,

it is judged about the presence (of the connected condition - JQ Device according to PP, 2 and 3 of the formula of elimination) of the corresponding conversation — the performance of sensors 1 and the anapic path. According to positive potentials 2. 2 Cp f-crystals, 1 ill. tiap at one or both exits

The invention relates to communication technology and can be used to control the quality of switching systems.

The purpose of the invention is to reduce the time and increase the accuracy of the control.

The drawing shows a structure-wiring diagram of a device for controlling switching systems.

The device contains p - sensors 1, - 1 "test signal, p - analyzers 2, - 2" test signal, comparators 3 and 4. Sensor 1 of the test signal contains diodes 5 and 6, resistors 7 and 8, transistor 9. Test analyzer 2 The signal contains diodes 10-13, resistors 14-17, and a transistor 18. The drawing also shows a controlled switching system 19.

The device works as follows.

the 2pNachoV sensors of the initial state of all IT-1 n and the analyzers 2 are in a closed state, since their control inputs do not have control signals. At the same time at the outputs of Comparators 3 and 4 there is a zero potential (signal Norm). The control of each measurement track is carried out by applying a control signal. The input is the corresponding one of the sensors 1 and the input is the corresponding one of the analyzers 2, connected to a specific one of the monitored conversational paths. The sequence of path monitoring is carried out by alternately applying control signals to the RCSs of the respective sensors 1, -1 „and the inputs of analyzers 2, -2 ,,.

analyzer 2, which exceeds the threshold of the corresponding comparator 3 and 4, is judged to be the absence (unallocated state) of the conversational path. In this case, resistors 7 and 14 are current-limiting, and resistors 8 and 15 provide a predetermined mode of operation for transistors 9 and 18,

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Let sensor 1 and analyzer 2 be connected to the first of the monitored conversational paths.

When a control signal is applied to the input of sensor 1, the emitter-to-base transistor 9 of this sensor 1 is turned off, and if there is a controlled path, the negative potential of the supply voltage is applied to the input of the corresponding anahgizator 2 via disconnect diodes 5.6 and 10 , 11, and (current) resistors 16 and 17 are fed to the collector of transistor 18 of this anchizer 2. When the control signal is applied to the control input of this analyzer 2, its transistor 18 opens, while the analyzer 2 leaves a positive potential supply voltage.

In the case when the monitored conversational path is not connected for any reason, the transistor 18 analyzer 2. if there is a jup on its control; it is the input of the control signal, it also opens, but at the output (outputs) of the analyzer 2 in this case a positive potential appears, the value of which depends on the resistance of the corresponding wire of the monitored path.

Since the output of each of the analyzers 2. connected to one wire of the corresponding conversational path, is connected via the decoupling diode 13 to the input of the comparator 3, and the output connected to the other wire through the disconnect diode 12 is connected to the output of the second comparator 4, each comparator 3 and 4 is selected depending on the parameters (in particular, on the resistance to constant-N current) of the corresponding controlled path, determined, in turn, by the requirements placed on the spoken path,

Thus, the zero potential at the output of the analyzer 2 is judged to be the presence (connected state) of the corresponding conversational path, and the positive potential at one or both of the outputs of the analyzer 2, which exceeds the response threshold of the corresponding comparator 3 and 4, is judged absent ( uninterrupted state) of the spoken path. Resistors 7 and 14 are current-limiting, and resistors 8 and 15 provide a predetermined mode of operation for transistors 9 and 18.

Claims (3)

1. A device for monitoring switching systems, comprising a first sensor of the test signal and a first analyzer of the test signal, one input of which is connected to one output of the first sensor of the test signal through a controlled cm sensor, in order to reduce the time and improve the accuracy of monitoring J the first and second p-1 comparators of the test signal analyzers and the p-1 test signal sensors, the first and second outputs of which through a controlled switching signal If the system is connected to the first and second inputs of the corresponding test signal analyzers, the first and second outputs of all the test signal analyzers are pairwise combined and connected respectively to the inputs of the first and second comparators, whose outputs are the first and second outputs of the device, respectively, the sensor inputs of the test signal are The first control inputs of the device are the Composer V.Cam Techred M. Hodiich ,, Editor M.Tovtin i ten 15 20 25 , Jq 35 40 45 50 The second control inputs of which are the third inputs of the test signal analyzers, the other input of the first test signal analyzer is connected via a controlled switching system to another output of the first sensor of the test signal. 2. The device according to claim 1, such that each sensor of the test signal contains a transistor, two diodes and the first and second resistors connected in series, the first terminal of the first resistor is the control input of the sensor test signal, the first and second outputs of which are the anodes of the first and second diodes, respectively, whose cathodes are combined and connected to the collector of the transistor, the base of which is connected to the first tap of the second resistor, the second tap of which is connected to the emitter of the transistor and with a minus power supply bus. 3. The device according to claim 1, of which is that each analyzer of the test signal contains a transistor, a first and a second diode, a third diode connected in series, and a first resistor, a fourth diode connected in series, and a second resistor connected in series the third and quarter-resistors, the cathodes of the third and fourth diodes are respectively the first and second inputs of the test signal analyzer, the control input — the first tap of the third resistor, the first and the second outputs are the cathodes of the first and second diodes, respectively, whose anodes are connected to the anodes of the third and fourth diodes, respectively, the second taps of the first and second resistors are combined and connected to the collector of the transistor, the base of which is connected to the first tap of the fourth resistor, the second tap of which is connected to the emitter and with a positive power supply bus. Proofreader M.Samborsk