SU1732489A1 - Device for interstation communication - Google Patents

Abstract

SUMMARY OF THE INVENTION The device comprises a receiving converter 1 of a code shaper 2 of a phase signal, shaper 3 clocks, distribution block 4, matching blocks 5, shaper signaling shaper 6, shaper 7 of a linear signal, transmitting code converter 8, defining a generator 9, shaper 10 frequency bursts, code receiver switch 11, code receivers 12, signaling unit 13, linear signal exchange unit 14, and control unit 15. 1-2-3-4-5, 9-3-2, 3-6-7-8, 15-13-3, 1-10-4, 5-14-15-11-12. 2 з.п f-ly, 3 ill.

Description

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An inter-office communication device is in the field of telecommunications and can be used for interfacing electronic automatic telephone stations through outgoing and incoming communications by electromechanical automatic telephone exchanges of local and transit networks.

An inter-station communication device is known for interfacing the tone frequency channels of digital and analog transmission systems.

A disadvantage of the device is the inability to transmit interaction signals between automatic telephone exchanges.

The closest to the invention is the PCM-30 transmission system comprising a receiving code converter, a phase signal generator, a clock frequency generator, a distribution unit, N matching blocks, a frame synchronization generator, a linear signal generator, a transmitting code converter, a master oscillator decoder, N receivers. N transmitters and coder.

The disadvantages of this system are limited capabilities in the transmission of control signals and the interaction between electronic and electromechanical automatic telephone exchanges.

The aim of the invention is to enhance the functionality by providing interface between electronic and electromechanical automatic electronic stations ..

The goal is achieved by those. that the inter-station communication device comprising a receiving code converter, a phase signal shaper, a clock shaper, to the clock input of which the output of the master oscillator is connected, a distribution unit, a frame synchronization shaper, N matching blocks, a linear signal shaper and a transmitting code converter, the information the output of the receiving code converter is connected to the information input of the phase signal generator, the first output of which is connected to the first input f clock driver, the clock output of the receiving code converter is connected to the clock input of the phase signal generator and to the second clock input of the phase signal generator and to the second clock input of the clock signal generator, the N outputs of the distribution unit are connected to the information inputs of the corresponding N matching blocks, whose information outputs are connected with the corresponding N information inputs of the linear signal shaper, the information output of which is connected to the input code converter, the first output of the clock generator is connected to the input of the frame synchronization generator, the output of which is connected to the phase

0 input of the linear signal shaper, the second clock shaper output is connected to the clock inputs of the linear shaper and the transmitting code converter, and three

The 5th output of the clock signal generator is connected to the clock input of the distribution unit, the frequency message shaper, the code receiver switch K of code receivers, the

0 exchange of linear signals, a signaling unit and a control unit, the information output of the receiving code converter is connected through the frequency message shaper to the information input of the distribution unit, the auxiliary output of the linear signal generator is connected to the information input of the code receiver switch, the information outputs of which are connected to

0 information inputs of the corresponding code receivers, N outputs of the linear signal exchange unit are connected to the control inputs of the corresponding N matching blocks, interrogation outputs

5 of which are connected to the corresponding N inputs of the linear signal exchange unit, the second output of the phase signal generator is connected to the information inputs of the alarm unit, the information output of which is connected to the auxiliary input of the linear signal generator. The control outputs of the control unit are connected to the inputs of the corresponding K code receivers, the outputs of which are connected to the corresponding K inputs of the control unit, the first second, third and fourth outputs of which are connected to the corresponding inputs of the alarm unit,

0 switch code receivers, linear signal exchange unit and frequency message shaper, the polling output of which is connected to the polling input of the control unit, the first, second, third, fourth and fifth additional outputs of the clock signal generator connected to the clock inputs of the signaling unit, the frequency generator parcels, switch gfiemnikov, receiving converter

code and block exchange of linear signals, and the sixth additional output of the clock signal generator is connected to the combined clock inputs of all code receivers.

To provide interface with a two-wire connecting line, each matching unit contains an encoder, a decoder, the first and second active low-pass filters, a differential system, the first and second decoupling capacitors, a register, a bus driver, and six electronic keys, the decoder output being connected through the first active the low-pass filter with the input of the differential system, the output of which is connected through the second active low-pass filter to the input of the encoder, the first and second outputs of the differential system are connected to the first conclusions of the corresponding x of the first and second separation capacitors, five outputs of the register are connected to the inputs of the corresponding five electronic keys, the first outputs of the first and second electronic keys are connected to the second terminals of the first coupling capacitor, the first outputs of the third and fourth electronic keys are connected to the second terminals of the second coupling capacitor, the second outputs of the first, second, third and fourth electronic switches are connected to the second output of the second coupling capacitor, the second outputs of the first first, second, third and fourth electronic switches are connected respectively to the first, second, third and fourth inputs of the bus driver, the fifth and sixth inputs of which are connected respectively to the first output of the fifth and output of the sixth electronic switches; and the output of the matching unit are respectively the input of the decoder and the output of the encoder, the control inputs and the interrogation outputs of the matching unit are respectively the inputs of the register and the outputs of the bus driver, and the outputs are matching The second block for the wires of the outgoing two-wire line are the other pins of the first and second coupling capacitors, the second output of the fifth key and the input of the sixth electronic key, and the inputs of the two-wire line of the connecting block are the other terminals of the first and second coupling capacitors the tron key and the second output of the p e electronic key.

In order to interface with a four-wire connecting line, each matching unit contains an encoder,

decoder, first and second active low-pass filters, four separation capacitors, register, bus driver and six electronic keys, the decoder output is connected to the input of the first active low-pass filter, the output of the second active low-pass filter is connected to the encoder input, the first and second outputs the first active low-pass filter is connected to the first terminals of the first and second separation capacitors, respectively; the first and second outputs of the second active low-pass filter are connected to the first By the individual outputs of the third and fourth split capacitors, respectively, five outputs of the register are connected to the inputs of the respective five electronic switches, the first outputs of the first and second of which are connected to the second output of the first coupling capacitor, the first outputs of the third and fourth electronic switches are connected to the second output of the second coupling the capacitor, the second outputs of the first, second, third and fourth electronic switches are connected respectively to the first, second, third and fourth in The bus driver's turns, the fifth and sixth inputs of which are connected respectively to the first output of the fifth and output of the sixth electronic switches, while the information input and output of the matching unit are respectively the input of the decoder and the output of the encoder, the control inputs and interrogation outputs of the matching unit the register inputs and the bus driver outputs, respectively, and the terminals for connecting the outgoing connecting line of the matching unit are the terminals of the first, second, third and fourth sections. The capacitors, the second output of the fifth and the sixth electronic switch inputs, and the connecting terminals of the matching unit are the terminals of the first, second, third and fourth coupling capacitors, the sixth input and the second output of the pie electronic switches.

FIG. 1 is a block diagram of an inter-office communication device; in fig. 2 is the same matching unit for a two-wire connection line; in fig. 3 - the same for a four-wire connecting line.

The block diagram of the inter-station communication device (Fig. 1) contains a receiving code converter 1, a phase signal shaper 2, a clock shaper 3, a master oscillator 4, a distribution block 5, a frame synchronization shaper 6, N matching blocks 7-1 ... 7 -N, linear signal generator 8, transmitting code converter 9, frequency signal generator 10, code receiver switch 11, K code receivers 12-1 ... 12-K, linear signal exchange unit 13, signaling unit 14 and control unit 15.

Each of the N matching blocks 7-1 ... 7-N for pairing via a two-wire connecting line (Fig. 2) contains an encoder 16, a decoder 17, the first and second active filters 18-1 and 18-2 low frequencies, the differential system 19 , the first and second separation capacitors 20-1 and 20-2, register 21, bus driver 22, six electronic switches 23-1 ... 23-6, and for connection via a four-wire connecting line (Fig. 3) contains an encoder 24 , decoder 25, first and second low-pass filters 26-1 and 26-2, first, second, third and fourth separation capacitors 27-1 ... 27-4, register 28. bus driver 29 and six electronic keys 30-1 ... 30-6.

The device works as follows.

A digital stream of linear signals of the forward direction, for example, 2048 kbps in the NOV-3 code, is fed from the line to the input of the receiving converter 1 of the code. Receiver code converter 1 converts linear signals into a unipolar binary form and extracts a timing signal, for example. 2048 kHz. The timing signal is simultaneously applied to the phase signal shaper 2 and the 3 clock wave shaper. The phase signal generator 2 catches the sync pattern arriving from the line at the beginning of each cycle, and generates a phase signal to reset the 3 clock signal generator circuit to its initial state, after which a new clock signal is read. Clock generator 3 generates clock signals using a clock signal extracted from a linear signal or from master oscillator 4 in case of a linear signal loss. Clock signals for synchronous operation of all functional units of the device are supplied from a generator of 3 clocks to a receiving transducer of 1 code, an allocation block 5, N matching blocks 7-1 ... 7-N, a frame synchronizer 6, a linear signal former transmitting converter 9 of code, shaper 10 frequency packages, switch 11 code

receivers, K code receivers 12-1 ... 12-K, signaling unit 14 and block 13 of linear signal exchange.

Linear signals in unipolar binary form from the receiving transducer 1 of the code arrive at the information input of the shaper of 10 frequency packets. The frequency generator 10 sends them to the information input of the distribution unit 5 in the conversational phase of the subscriber connection, and in the connection establishment phase according to the commands of the control unit 15 ensures the generation of frequency signals in digital form. Distribution unit 5 provides distribution of channel digital information signals of a forward direction from a digital stream of linear signals channel-by-channel to N matching blocks 7-1 ... 7-N. In matching blocks, channel digital information signals are converted to analog tonal frequency signals. Inverse analog tonal frequency signals in matching blocks 7-1.,. 7-N are converted into channel digital information signals of the reverse direction, which are combined into a digital stream of reverse direction linear signals by means of a transmitting converter using the line signal generator 8. 9 code. The linear signal generator 8, when combining all channel digital information signals in the reverse direction, provides for their cyclic transmission and inserts a cyclic sync signal from the cyclic sync generator 6 in each cycle. The control signals and interactions are transmitted via a dedicated digital substream in the forward and reverse directions between the electronic automatic telephone station and the control unit 15 of the device using the signaling unit 14, respectively, through the phase 2 driver to the control unit 15 and from the control unit 15 through the driver 8 line signal.

The linear signals to the electromechanical automatic telephone station are controlled and linear signals from it are received in matching units of the corresponding connecting lines using digital control and interaction signals transmitted in the forward and reverse directions between the device control unit 15 and the electromechanical automatic telephone station from the unit 15 controls to N matching blocks and from N matching blocks

blocks to the control unit 15 using the block 13 of the exchange of linear signals. Multi-frequency information from electromechanical PBXs is received by K code receivers 12-1. 12-K, each of which is connected via the switch 11 to a group stream generated by the linear wave shaper 8. The control commands for switching the switch 11 and the scan command for reading the states of the code receivers 12-1 ... 12-K are performed by the control unit.

Channel digital information signals of the direct direction, coming to the input of the matching unit, both for the two-wire connecting line (Fig. 2) and for the four-wire connecting line (Fig. 3), are converted by the decoder 17 or 25 into analog signals and fed to the wires a and in depending on the type of connecting line in one case - through the first active low pass filter 18-1, differential system 19 and the first and second separation capacitors 20-1 and 20-2, and in the second case through the first active filter 26-1 low pass and first and second coupling capacitors 27-1 and 27-2. The analog reverse signals in the first case are transmitted through the first and second coupling capacitors 20-1 and 20-2, the differential system 19, the second active low-pass filter 18-2 to the encoder 16, and in the second case through the third and fourth coupling capacitors 27- 3 and 27-4, second active low pass filter 26-2 to encoder 24

Encoders 16 and 24 perform analog-to-digital conversion and generate reverse-channel channel digital information signals. Controlling the connection of positive and negative polarities to wires a and positive polarity to wires from one or another type of connecting line the fifth electronic key 23-1 23-5 or 30-1 .., 30-5 from the control unit 15 through the register 21 or 28. The interrogation signals, which indicate the presence of reverse polarity on one or another connecting line, are recorded to blo 15 controls from the outputs of the corresponding six electronic switches 23-1 ... 23-6 or 30-1 30-6 through the bus driver 22 or 29. The sixth electronic switch 23-6 and 30-6 monitors the status of the connecting line through the wire to (she is free or busy)

Claims (3)

Claim 1. Inter-station communication device containing a receiving code converter, phase signal generator, clock generator, to the clock input of which the output of the master oscillator, distribution unit, frame synchronization generator, N matching blocks, linear signal generator and transmitting code converter, moreover, the information output of the receiving code converter is connected to the information input of the phase signal generator, the first output of which is connected to the first input of the clock generator, the clock output of the receiving code converter is connected to the clock input of the phase signal generator and the second clock input of the clock generator, the N outputs of the distribution unit are connected to the information inputs of the corresponding N matching blocks, whose information outputs connected to the corresponding N information inputs of the linear signal generator, the information output of which is connected to the input of the transmitting code converter, the first output of the clock signal generator is connected to the input of the frame synchronization generator, the output of which is connected to the phase input of the linear signal shaper, the second output of the clock signal generator is connected to the clock inputs of the linear signal shaper and the transmitting code converter, and the third output of the clock signal shaper Lov connected to the clock input unit Distribution, characterized in that, in order to expand the functionality by providing the interface between electronic and electromechanical automatic electronic stations, a frequency message shaper, code receiver switch, K code receivers, exchange unit, linear signals, signal unit and control unit are introduced, the information output of the receiving code converter is connected via the frequency base generator to the information input of the distribution unit; an additional output is formed the linear signal body is connected to the information input of the switch for the code receivers, To the information outputs of which are connected to the information inputs of the corresponding code receivers, N outputs of the linear signal exchange unit, connected to the control inputs of the corresponding N matching blocks, polling outputs of which are connected to the corresponding N inputs of the linear signal exchange unit, the second output the phase signal generator is connected to the information inputs of the alarm unit, the information output of which is connected to an additional at the input of the linear signal shaper, the control outputs of the control unit are connected to the inputs of the corresponding k code receivers, the outputs of which are connected to the corresponding k inputs of the control unit, the first, second, third and fourth outputs of which are connected to the corresponding inputs of the signal block of the switch of the code receivers, linear signal exchange unit and frequency message shaper, the interrogation output of which is connected to the interrogation input of the control unit, the first, second, third, fourth and fifth For further output of the clock signal connected to the clock inputs respectively block signaling frequency shaper parcels switch code receivers receiving transducer and linear code signal exchange unit and the sixth output of the additional clock signals coupled to the clock inputs of all the volume of code receivers. 2. The device according to claim 1, characterized in that, in order to provide conjugation with a two-wire connecting line, each matching unit comprises an encoder, a decoder, the first and second active low-pass filters, and the differential system. the first and second separation capacitors, the register, the bus driver and six electronic switches, the decoder output being connected through the first active low-pass filter to the input of the differential system, the output of which is connected through the second active low-pass filter, to the input of the coder, the first and second outputs of the diffuser - we are connected to the first terminals of the respective first and second coupling capacitors, five outputs of the register are connected to the inputs of the corresponding five electronic switches, the first outputs of the first and second electrons keys connected to the second pins of the first coupling capacitor, the first outputs of the third and fourth electronic keys are connected to the second terminals of the second coupling capacitor, the second outputs of the first, second, third and fourth electronic keys are connected to the second output of the second coupling the capacitor, the second outputs of the first, second, third and fourth electronic switches are connected respectively to the first, second, third and fourth inputs bus driver, the fifth and sixth inputs of which are connected respectively to the first output of the fifth and the output of the sixth electronic keys, while the information input and output of the matching Block 0 are the decoder input and encoder output, the control inputs and the polling output of the matching block, respectively, are the register inputs and the bus driver outputs, and The 5 terminals of the matching unit for connecting the wires of the outgoing two-wire line are the other outputs of the first and second coupling capacitors, the second output of the fifth key and the input of the sixth 0 of the electronic key, and the inputs of the two-wire line of the matching unit are the other terminals of the first and second coupling capacitors, the input of the sixth electronic key and the second output of the fifth 5 electronic key. 3. Device pop. 1, characterized in that, in order to provide an interface with a four-wire connecting line, each matching unit contains an encoder, a decoder, the first and second active low-pass filters, four separation capacitors, a register, a bus driver and six electronic keys, the output of the decoder is connected to the input of the first active low-pass filter, the output of the second active low-pass filter is connected to the input of the encoder, the first and second outputs of the first active low-pass filter are connected to the first terminals respectively, the first and second separation capacitors, the first and second outputs of the second active low-pass filter are connected to the primary terminals 5 of the third and fourth separation capacitors, five outputs of the register are connected to the inputs of the corresponding five electronic switches, the first outputs of the first and second of which are connected to the second 0 the output of the first coupling capacitor, the first outputs of the third and fourth electronic switches are connected to the second output of the second coupling capacitor, the second outputs of the first, second, 5 of the third and fourth electronic switches are connected respectively to the first, second, third and fourth inputs of the bus driver, the fifth and sixth inputs of which are connected respectively to the first output of the fifth and output of the sixth electronic switches, and the information input and output of the matching unit are respectively the decoder input and encoder output, the control inputs and the polling output of the matching block are the register inputs and the bus driver outputs, and the outputs for connecting the output matching connecting line matching unit From 5l to 5 bb K6L8 are the pins of the first, second, third and fourth separation capacitors, the second output of the fifth and the input of the sixth electronic switches, and the inputs of the connecting line of the matching unit are the outputs of the first, second, third and fourth separation capacitors, the input of the sixth and second output of the fifth electronic keys. 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