SU1396292A1 - Device for checking path of decade-stepping automatic telephone exchange - Google Patents

Abstract

The invention relates to telecommunications. The purpose of the invention is to improve the accuracy and efficiency of control. The device contains a subscriber set (AK) 1, p-1 of search blocks, search steps 3-8, connection block 9, control block 10, recording block 11, buzzer recorder 12, r-13 loop pulses, information recorder 14 about the free movement of the seeker, which contains fixers of the number of actuations of the electromagnet of the search level. In the device entered block 15 of the control of the asymmetry of the conversational wires, Mr. 16 control frequency (RC), block 17 of the lock devices. Since the QC is applied to wires a and b of the same phase and amplitude, the level of QC voltages between wires a and b is directly proportional to the asymmetry of conversational wires. Failure of the CC about the free motion of the searcher of stage 3 or blocking by the block 15 of the signal about the acype of the spoken wires indicates the presence of a malfunction on the section AK 1 - step 3. The address of the defective section is determined by the number AK 1 of the control subscriber and printed out using block 11. 1 il. I (L

Description

The invention relates to electrical, communications and can be used on automatic telephone exchanges of a decade-step system. $

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

The drawing shows the structural electric circuit of the proposed device.

The path monitoring device for a ten-step automatic telephone exchange contains a subscriber set (AK) 1, p-1 search units 2, 15 search stages 3-8, connection unit 9, control unit 10, recording unit 11, recording unit 12, and buzzer signals recorder 12 , loop pulse generator 13, recorder 14 information on free 20 movement of the finder, which contains (not shown) latches for the number of actuation of the electromagnet of the search stage, block 15 for the asymmetry of the talking wires, generator 25 for the control frequency 16, block 17 for locking the instrument in. Blocks 2 contain capacitors, the first conclusions of which are connected with the spoken wires a and b, and the second conclusions through the contact of the relay · pulse-pair with the output of the generator 16.

The device operates as follows. 25

The control frequency is supplied to blocks 2 from the generator 16. Block 9 connects the test subscriber to AK 1 and takes the corresponding device of stage 3. From this moment, the free search for stage 4 starts on stage 3. During the free movement of the finder using block 10, which is with a software sensor, through a generator $ 13 through AK 1, a recorder 14, a recorder 12 and a block 15 are connected to the line. the number of short circuits of 50 contacts of the pulse-pair of block 2. At each step of free movement using block 2, the control frequency from the generator 16 is transmitted through the talk wires to the device. This 55-hour clock is received by the recorder 14 and ₍ is fixed in the first latch. At the same time, this frequency arrives ₄ block 15, which measures the level of the control frequency between the wires a and b. Since the control frequency is supplied to the wires a and b of the same phase and amplitude, the voltage level of the control frequency between the wires a and b is directly proportional The reference frequency asymmetry about the free movement of the stage 3 finder or the block 15 fixing the signal about the asymmetry of the conversational wires indicates a malfunction in the AC 1 - stage 3 section. The address of the faulty section is determined by the AK 1 number of the control subscriber and is printed when block 11. The buzzer signal is busy. It is busy in the recorder 12 and indicates that all available devices of stage 4 are busy. At the same time, AK 1 of the other control subscriber is occupied and the process is repeated. When a buzzer signal arrives, the Station responds to the recorder 12, block 10 starts the generator 13 and dials the first digit of the second AK 1 number of the test subscriber, and the stage 4 seeker brushes are set for a given decade. During the inter-series time, a free search of the stage 5 device is performed. During free movement, the recorder 14 and block 15 are connected to the line using block 1.0. At the end of the free movement of the stage 4 finder, information on the presence or absence of the buzzer signal is accumulated Busy, in block 15 the control frequency level between the wires a and b is controlled, i.e. the magnitude of the asymmetry of the talk wires obtained by unit 2, and in the recorder information on the number of activations of the rotation solenoid rotation magnet 4. This information is recorded in the second latch. The absence of information in the second fixture or the fixation of the asymmetry of the wires of the blocks indicates the presence of an obstruction or asymmetry of the speaker wires in the stage 3 - stage 4. The address of this section is unambiguously determined by the number AK 1 of the control subscriber and the content of the first latch and is printed out and in block 17. Block 17 blocks the device of stage 4 according to the received information and upon a command from block 10. Receipt of a buzzer signal Occupied in the recorder 12 means the busyness of all available devices of stage 5. According to this signal, usual occupation AK 1 other controlling party. If there is information in the second latch and there is no buzzer signal Busy and there is information about the asymmetry of the talk wires in block 15, it is considered that the connection at the stage 3 - stage 4 section is established, and using the generator 13, the second digit of the AK 1 control number is dialed subscriber. The sequence of operation of the device and the processes that occur when the connection is established at stages 5-7 are carried out in the same way as at stage 4o. The difference is that the information on the number of times the rotation solenoid activates the stage 5 seeker is recorded in the third clamp of stage 6, stage 6 in fourth stage lock 7, etc. Moreover, the address of the detected obstruction sections is unambiguously determined by the contents of the respective latches and the number of the control subscriber occupied by AK 1. Upon successful occupation of the device of stage 8 using the generator 13, the last two digits of the number of the second AK 1 are dialed. After the forced lifting and rotational movement of the finder - stage 8, the generator 12 records the presence or absence of a buzzer signal Control call. The presence of this signal means the successful completion of the process of establishing a connection between the first AK 1 and the second AK 1 of the control subscribers. ”No signal. The control of a call indicates a failure in the section of stage 7 - stage 8. The address of this is unambiguously determined by the contents of the latches and the number of the first and second AK 1 control subscribers.

Claims (1)

The claims control unit of the decade-step automatic telephone exchange, containing p-1 search units, where η is the number of search steps, a connection block that is connected through a subscriber kit with the corresponding search step, in addition, is connected directly to the first outputs of the loop pulse generator , a buzzer signal recorder and a recorder of information on free movement of searchers, 15 second outputs of which are connected to the first input of the recording unit, the second input of which is connected to the first the output of the control unit, the second, third and fourth outputs of which are connected respectively to the inputs of the loop pulse generator, the buzzer signal recorder and the searcher free movement information recorder, characterized in that, in order to increase the accuracy and efficiency of the control, a colloquial asymmetry control block is introduced wires, the first input of which is connected to the connection unit, the output 30 is connected to the first input of the recording unit, the second input of the asymmetry control unit of the conversational wires is connected to the fifth the control unit, the device blocking unit, the first one, the input of which is connected to the sixth output of the control unit, the second input is connected respectively to the outputs of the loop pulse generator, the recorder for information on free ₄₀ movement of the searchers, the buzzer signal recorder and the asymmetry control unit for conversational wires, the outputs of the blocking devices are connected to the occupation inputs of the corresponding search stages, the control frequency generator, the output of which is connected respectively to the relay contacts of the pulse-pair of blocks claim, whose input is connected to the wire b and q corresponding Hunt stage.