SU915278A1 - Device for monitoring connections of automatic exchange - Google Patents

Description

one

The invention is intended for use as part of test equipment of ATS, in particular of types ATSK and ATSK-U.

A device for controlling the establishment of connections of an automatic telephone station is known, comprising a control unit, the first, second, third, fourth and fifth signal inputs of which are connected respectively to the outputs of the occupation test unit, dialing pulse sensor, telephone simulator, outgoing cord set simulator and the first the output of the receiver of the buzzer and tones, the second output of which is connected to the first input of the dial pulse sensor, the first, second, third, fourth and The Fifth control unit outputs are connected to inputs respectively wires verification unit class, a receiver and a beep tone, the telephone simulator,

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the simulator of the outgoing cord set and the signaling unit, and the first, second, third and fourth control inputs of the control unit received signals of the first and second conversational wires and the first and second conductors of the p), respectively.

However, the known device is not ob- ¹ falls within the control.

The purpose of the invention is to improve the accuracy of control.

This goal is achieved by the fact that the device for monitoring the establishment of connections of an automatic telephone station containing the control unit, the first, second, third, fourth and fifth signal inputs of which are connected respectively to the outputs of the occupancy test unit, dial number pulse sensor, telephone simulator , simulator of the outgoing cord set and the first output of the receiver of the buzzer and tone signals, Vto915278

whose output is connected to the first input of the dial pulse sensor, the first, second, third, fourth and fifth outputs of the control unit are connected to the inputs of the seizure wiring checker, a buzzer and tones receiver, outgoing cord simulator, respectively. of the set and the alarm unit, and the first, 10 second, third and fourth control inputs of the control unit are given signals of the first and second conversational wires and the first and second conductors of the session, respectively; The first .15 and second keys, the coincidence element, the mismatch element and the time delay block, the sixth, seventh and eighth outputs of the control unit are connected to the first inputs of the first and second keys and the coincidence element respectively; the output of the first key is connected to the first the input of the mismatch element and the second input of the coincidence element, the output of which is connected 2X to the second input of the dial pulse generator, and the output of the second key is connected to the third input of the coincidence element and to the second input of the mismatch element which through zo block time delay is connected with the second inputs of the first and second keys.

The drawing shows a structural electrical circuit of the device. ₃₅

The device for controlling the connection of the automatic telephone station contains a control unit 1, a unit 2 for checking occupancy wires, a dialing pulse sensor 3, a telephone simulator 4 (TA), an outgoing cord set simulator 5 (CAM), a zoom receiver 6 "; dimensional and tones , block 7 alarm, the first 8 and second 9 ₄₅

keys, match element 10, mismatch element 11, and time delay block 12.

The control unit 1 has the first 13, second 14, third 15, fourth 16 ⁵⁰

and the fifth 17 signal inputs, as well as the first 18, second 19, third 20, fourth 21 and fifth 22 signal outputs. In addition, in the control unit 1, the first 23, second 24, 55 are provided.

the third 25 and fourth 26 control inputs, as well as the sixth 27, seventh 28 and eighth 29 signal outputs.

The device works as follows.

The device is connected to checked sgtam or sets using sockets and re-cords.

When checking station equipment, in particular, outgoing cord sets (HSC), with the help of unit 2 for checking the occupancy wires, the condition of the HOS occupation circuit is determined and the latter is made. At the command of the control unit 1, the simulator 4 of the telephone apparatus closes the subscriber loop. IShK occupies the register search step marker, the latter occupies the subscriber register and connects the subscriber’s "d" and "b" wires to the wires and "a" of the outgoing cord set. The control unit 1 switches the third 25 ("0") and fourth 26 ("in") control inputs of the outgoing cord set and the associated subscriber register to the first 8 and second 9 keys to determine the health of these wires.

After checking the serviceability of the wires to the subscriber register · control unit 1 commutes the control inputs 25 and 26 to the receiver 6 of the buzzer and tone signals to control the receipt of the station's response buzzer from the subscriber register.

When this switching condition is good, the receiver 6 of the buzzer and tone signals records the arrival of the buzzer ANSWER OF THE STATION, and the first 8 and second 9 keys issue a command to the element 10 to match the closure circuit of the sensor 3 dialing pulses.

In the event of a failure of one of the wires of the spoken path, the first 8 and second 9 keys (depending on which wire is faulty) are performed via the mismatch element 11 to start the time delay block 12. The output of time delay unit 12 affects the inputs of the first 8 and second 9 keys in such a way that the input resistance of these keys changes for a given time, so that through the control unit 1, the pulse relay of the register is activated and held over one wire. !

In this case, the operation of the device stops, in block 7 of the alarm

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The circuit fixing the cause of the fault closes. Holding the subscriber register over one wire (for example, “a”) allows service personnel to find out the cause of the failure of the second wire.

The control of issuing dialing pulses is performed on the lamps of the alarm unit 7, and the number of issued digits and the number ^{, 0} , of the pulses in the series is displayed.

After issuing all the digits of the unit number, the V control unit prepares the simulator 4 of the telephone set and the receiver 6 beeps and tones for 15

• receiving a call and a ringing tone KVP (control call).

The simulator 4 of the telephone apparatus imitates the answer of the called subscriber, closing the loop of the latter, and sends 20 to the line a tone frequency to check the spoken path.

With the serviceability of the spoken path, the tonal frequency enters the receiver of 6 buzzer and tonal 'signals, where it is fixed by the corresponding relays. ·. According to the verification program, the simulator 4 of the telephone apparatus carries out the end of the called subscriber.

The application of 6 buzzer and tone zo signals is received by the buzzer "busy", sent by the device under test, as a result of the called party's release.

The control unit 1 disconnects, resulting in all relays 35 in the equipment being tested and the testing device returning to their initial state. ' . .

When checking station equipment from the inputs of the corpus-quest stage (GI) units or from the inputs of the incoming cord sets (MSCs) with the help of the unit 2 for checking wires, the occupancy determines the serviceability of the occupancy circuit of the device being checked and _<5 exists in the latter. At the command of the control unit 1, the sensor of the 3 dialing pulses proceeds to issue the programmed number by the frequency method. On the lamps of block 7 _{50 of the} alarm system, the issued figure and the command received from the marker are fixed. After issuing the total number simulator telephone 4 and a receiver 6 and a beep tone pri- _{5 $} neem and sending call beep CPV, whereupon the telephone simulator 4 produces simulated response of the called subscriber. The simulator 5 MCC controls the presence of interaction signals, and the Receiver 6 buzzer and tonal signals receives a tone frequency.

Having carried out all the programmed checks, the control unit 1 performs the disconnection. This is a one-time check.

When the device operates in the multiple test mode, after a time of 1 s, a new occupation of the equipment under test is performed, and the described test cycle repeats.

Claims (1)

Claim A device for monitoring the establishment of automatic telephone station connections, containing the control unit, the first, second, third, fourth and fifth signal inputs of which are connected respectively to the outputs of the classroom wire test unit, dialing pulse sensor, telephone simulator, outgoing cord set simulator and the first output receiver buzzer and tonal signals, second- ·:.. • the swarm of whose output is connected to the first input of the dial pulse generator; the first, second, third, fourth and fifth outputs of the control unit are connected to the inputs of, respectively, the classroom wire testing unit, the buzzer and tonal signals receiver, telephone simulator, outgoing cord set simulator and the unit signaling, and the first, second, third, and fourth control inputs of the control unit are given signals of the first, second, and third conversational wires, respectively, and the first and second conductors of the class, differing This is because, in order to improve the accuracy of control, the first and second keys, the coincidence element, the mismatch element and the time delay block are entered, the sixth, seventh and eighth outputs of the control unit are connected to the first inputs of the first and second keys and the coincidence element, the output of the first key is connected to the first input of the mismatch element and the second input of the coincidence element, the output of which is connected to the second input of the dial pulse sensor, 915278 and the output of the second key is connected to the third input of the coincidence element and to the second input of the mismatch element, the output of which is connected to the second 5 inputs of the first and second keys through the exposure block 'times.