SU415825A1 - - Google Patents

Description

one

The invention relates to the field of electro-automated automatic stations (EATS) with code-pulse modulation (CMM) and pulse-time channel separation and can be used in node or transit EATS integrated digital communication system (ISCS) in the development of switching control devices LOL.

Electronic PBXs are known with control devices connected to outgoing connecting lines and receivers of dialing information. In 31 known EATS blo:; Coptrol of connection states analyzes the state of switching nodes and transmits information about any change in them to perform certain operations.

To reduce sborudovank. PSCB for monitoring the switching field of the electronic PBX, the sync signal receiving unit is connected to the outgoing connecting lines, the sync driver is connected to the switching unit of the tone generators. The second sync signal receiving unit is connected to the switching unit of the pabor number receivers. The third clock receiving unit is connected to the common station generator directly and through additional forms: a clock signal generator to a cascade of temporary switching.

The block .-: a sec. Of the circuit is looped to a cycle, equipped with a cascade of time switching, contains an identification of a clock signal connected to the inputs of two coincidence circuits.

The second inputs of the coincidence circuits are the inputs of the sync signal receiving unit over the cycle. In the siphrosppna block; 1a through the cycle, connected to the outgoing connecting lines, the memory block of addresses through the decoder is connected to the control inputs of the selection contacts, the information inputs of which are sent; by the clock input of the sync signal. The outputs of the contacts of the selection of information through the circuit collectPA and the code converter is connected to the opisolator:, a clock signal. The outputs of the decoder are connected to the dvzm ochem assembly. The output of one of the collector circuits is connected to the first input of the first circuit coincidently and almost concurrently, and to the first input of the second coincidence circuit via an inverter. The output of the second circuit is connected to the second input of the second coincidence circuit directly, and to the second;

through the inverter. To the third inputs of both schemes, the coincidences are connected to the corresponding outputs of the block;

On fkg. 1 shows a block diagram of a control unit of a code-box floor; pas figs.

2 - a functional palette of a cycle of receiving a chipchrosigal, connected to a cascade of time switching; in fig. 3 is a functional diagram of the sync signal acceptance unit connected to the outgoing connecting circuits.

The control device is built into the switching field of the station, B1 includes the elements of a collimating field and, therefore, it is combined with the elements of the next-to-last.

Switching field with a control device Contains (Fig. 1) a two-stage unit 1 of the commutation of the packed connecting lines emanating from the switching field and outgoing from it without changing the temporary positions of the channels; a three-stage switching unit 2 of the connected trunk lines entering the switching point and outgoing from it with changing temporary positions of the channels, the switching unit 3 of dialing receivers; block 4 switching tone generators; via the inputs 5 and the EATS receiving equipment, not shown in the figures, to the switching zero, incoming interconnected connecting lines from other PBXs are connected. The switching field through the outputs 6 and the EATL transmitting equipment, not shown in the figures, is connected to the outgoing sealed connecting lines. In addition, to the switching unit 3 switching dialing receivers through the outputs 7 are connected to the dialing receivers; tone generators are connected to inputs 8 of block 4 commutators of tone generators.

Inputs 5 are connected via vertical buses 9 to the first cascade 10 of the switching unit 1 without changing the temporary channel positions, to the first cascade 11 of the connecting unit 2 and to the switching unit 3 of the dialing receivers.

The outputs 6 through vertical tires 12 are connected to the outputs of the second cascade 13 of the switching unit 1, to the outputs of the third cascade 14 of the three-stage switching unit 2, to the outputs of the switching unit 4 of the tone generators and to the inputs of the control receiving unit 15.

The outputs of the first stage 10 of the switching unit 1 are connected to the inputs of the second stage 13 of the unit 1 through horizontal slots 16. The outputs of the first stage 11 of the unit 2 are connected to the corresponding inputs of the temporary switching stage 17, which is the second stage of the three-cascade switching unit 2. The time switch cascade 17 comprises constant delay devices 18 and variable delay device 19.

The additional clock generator 20 of the monitoring device included in the switching unit 2 contains a generator 21, which is connected to the connecting device 22. The outputs of the device 18 and 19 are connected via the connecting device 22

the inputs of the third stage 14 of block 2 and with the inputs of the block 23 of the sync signal.

The dialing unit 3 of the dialing receivers contains a group of 24 pins, the outputs of which are connected to the control device receiving block 25 of the monitoring device and, via the outputs 7, to the dialing receivers. The unit 25 consists of a serially connected connecting device 26 and an analyzer 27. The output 28 of the analyzer 27 is connected to a control machine.

The block 4 of the switching of the tone generators, containing a group of 29 contacts, is connected to the driver 30 of the clock signal of the control device. The imaging unit 30 comprises a generator 31 and a connecting device 32 connected to the output of the generator 31. The inputs 8 of the unit 4 are connected to a group of 29 contacts via a connecting device 32.

Cascades 10, I, 13, 14 of contact groups 24, 29 contain identical contacts 33 located at the intersection points of the vertical and horizontal tires. Each contact 33 has two inputs (informational and control) and one output. For example, contacts 33 in block 10 are located at the intersection of vertical tires 9 and horizontal tires 16, in which the information input of each contact 33 is connected to one of the tires 9, the output of each contact 33 is connected to one of the tires 16, and control input 34 is connected to the corresponding output of the decryptor of the operative switching device memory of the switching floor (OZUKP). Behind each of the vertical tires 9 and 12, one OZUKP with a decoder is connected (the operational memory switches and the decoders are not shown in the figures).

Each variable delay device 19 has an input associated with a corresponding decoder used for temporary switching of a switching memory random access memory.

The sync signal unit 23 (Fig. 2) consists of a connecting device 35 and an analyzer 36. The connecting device 35 contains contacts 37, the information inputs 38 of which are connected through the connecting device 22 to constant delay devices 18 and variable delay devices 19. The control inputs 39 are connected to a common station generator (for contacts 37 connected to constant delay devices 18) or OCDC outputs controlling the operation of time switch 17 (for contacts 37 connected to variable delay devices 19). The outputs of the contacts 37 through the circuit 40 of the Assembly is connected to the analyzer 36, the input of which is included the Converter 41 serial code in parallel. The outputs of the converter 41 are connected via a clock identifier 42 to one input of each of the two matching circuits 43 and 44. The input 45 of the circuit 5 43 of the coincidence is connected to the outputs of the general station oscillator, on which signals of the time positions "1," 2, "3, ...," n channels are present. The input 46 of circuit 44 of the coincidence is connected with the outputs of the obodestating generator, at which there are signals of temporary positions L-1, L-2, N-3, ..., L-n channels. In the legend used, L is the number of time channels in the switching field and. B is considered: implementation example and. Each matching circuit 43 and 44 is associated with a corresponding device 47. The outputs 48 of the resolvers are connected to a control machine. The sync signal receiving unit 15 (Fig. 3) contains the device 49 and the analyzer 50. The connecting device 49 consists of the address memory block 51 (in binary code with parity) of the contact groups being checked; a solver of 52 addresses associated with the inputs to the memory unit 51; contacts 53 for selecting the signal information on the cycle, the control inputs of which are connected to the outputs of the decipheror 52, and the informational ones are connected via the inputs 54 to the corresponding vertical rails 12; schemes 55 collect. the inputs of which are connected to the outputs of the coptic 53 of the selection of information, and the output is connected with the analyzer 50; the control circuit 56 of the memory block 51 and the address 52 debrisator. The control circuit 56 comprises a collection circuit 57, the inputs of which are connected to the outputs of the descrambler 52 corresponding to addresses with an even number of units; a collection circuit 58, the inputs of which are associated with outputs of the descrambler 52 corresponding to addresses with an odd number of ones; two ipvertora 59, the inputs of which are connected to the outputs of circuits 57 and 58, respectively; a three-input matching circuit 60, in which one input is connected to the output of the collecting circuit 58, another input is connected to the output of the collecting circuit 57 via the inverter 59, and the third is connected to the output of the parity check bit of the memory block 51; a three-input matching circuit 61, in which one input is connected to the output of the collecting circuit 57, another input is connected: to the output of the collecting circuit 58 via the inverter 59, and the third input is connected to the inverted output of the parity check of the memory block 51; a two-input collection circuit 62, in which the inputs are connected to the outputs of the joint schemes 60 and 61, and the output 63 is connected to a control and a mashina. In addition, the memory unit 51 has an input 64 connected to one of the outputs of the control machine. The analyzer 50 of block 15 consists of a converter of a successive code 65 to a parallel one, the input of which is connected to the output of the collecting circuits 55; The converter 65 of the synchronization signal identifier 66 connected to the outputs and the decider 67, whose input is connected to the output of the identifier 66. The output (58 of the broadcasting device 67 is connected to the control mask. The analyzer 50 is similar to the analyzer 27 of the block 25. The switching field with the monitoring device consists in the following: Information signals and a sync signal from the input from one to the switching field of the connecting lines through the inputs 5 (FNI. 1) vertical 9 ptunts pins 33 of the first stage JO of the switching unit 1 line 3 without changing the temporal positions of channel 3, contacts 33 of the nerve cascade 11 of block 2 switching connecting lines with altered vertical channels and contacts 33 g). 24 contacts of block 3 1; immutane; hrn, 111kov dialing but: Era. In addition. The control panel zero through the inputs 8 post-encoded signals (in the form of a CMM) from the tone generators. At various stages of the established connection, the control unit gives the corresponding signals from the control team to the active parts of the control signal, it will go to the world. torym axes schestvl neriodicheskoe an appropriate electronic circuit to the contact hm}, Gravitational field in shaven :: zest premopiyh positions. Due to this, the following possible paths of signals (for each time position separately) are provided: from connecting interconnects to the commutator zero; --;;: through a two-stage block 1 switching station without 1; changing 1 temporary positions of the channels to the outgoing links For example, to other stations on the block 15 of the terminal (through the inputs 5. vertical cables 9, contacts 33 of the first stage 10. horizontal tires 16, contacts 33 second) of the cascade 8, vertical lines: us 12 and outputs 6) ; from the connecting connecting lines through the three-stage b .-: approx 2 commutation with change; the letters of the time-dependent channels with the outgoing connecting lines in the direction to the other stlnglptm to the block 5 receive the sync signal (through the inputs 5 , hinges 9, pins 33 of the nerve cascade 11, devices 18 constant delay n time delay devices 19, connecting the device 22, contacts 33 of the third stage 14, vertical N1s 12 n outputs 6); from p commut.cnioniole zero connection; 1 ntel of the first lines through block 3 com.mutacnn to dialing receivers on block 25 nrnema e ;;: - l rosigpalz (via inputs 5, vertical terminals 9, contacts 33 of the group 24 contacts and outputs 7) ; from tonalyn lh sngnalsv generators through block 4 to co-utn to the output of the Nile; Compound: Product lines in Directions to;: station to the unit 15 for receiving the signal (via inputs 8, connecting device 32, contacts 33 of the 29 group of contacts, vertical tires 12 and outputs 6). For greater consistency in the operation of the switching field and control device, several examples have been considered. The operation of the switching field and control device when establishing a connection from incoming trunk lines to dialing receivers occurs as follows. The management machine, having received information about the call from the subscriber, finds a free dialing receiver that is available to the subscriber, as well as a free temporary channel and selects the contacts that should be used to pass dialing signals. Before connecting the connection, information from the clock receiving unit 25 is entered into the control machine. If the output 28 of the block 25 contains a logical zero, which indicates that the group of 24 contacts and the block 25 are working correctly, then the number of the selected contact is written to the corresponding OZUKP in the zero position. As a result of this entry in the PLC, the path of the clock signal through the loop in the switching field from the incoming trunk line, one of the time channels provided to this subscriber, to the clock reception unit 25 is provided. At the same time, if and the right contact is selected for the connection of the subscriber with the dialing receiver, then at the output 28 of the unit 25 the signal turns out in the form of a logical unit. The control machine, having received the indicated signal, erases the entry in the FPGA, which is produced for the zero temporal position, and records the selected contact number 33 in group 24 in the same CPAP in the temporary position selected for the subscriber. The operation of the switching field and the control device when establishing a connection from the tone generators to the outgoing connecting lines occurs as follows. Tone generators (e.g., "call," call control, "busy," ready) are connected to the subscriber at various stages of establishing a connection, with the vertical bus number 12 (fit 1) and the corresponding connecting line originating from the switching floor and the number of the temporary channel provided to the subscriber is determined in the previous stages of the connection. Each tone generator delivers to the input 8 of the switching unit 4 a corresponding tone signal in the form of a CMM in those time intervals in which the code words of the message channels are transmitted. If it is necessary to send a certain tone signal to the subscriber, which is determined by the controlling machine, the latter via the input 64 (Fig. 3) writes in the memory block 51 the number of the vertical bus 12 (Fig. 1) in binary code with bit parity checks. The parity check in direct and inverted form is noded to the control circuit 56 (FIG. 3), and the vertical bus number is assigned to the decoder 52. The signal that occurred on that output of the decoder 52, which corresponds to the binary code of the vertical bus number, Nodayut on the circuit 56 of the control, resulting in the output 63 of the circuit 56 on Vits signal of the logical unit. In addition, the signal from the output of the decoder 52 is fed to the corresponding control input of the contact 53. When the contacts 33 of the group 29 connected to the selected vertical bus 12 (Fig. 1) are correctly operated, the information input 54 of the contact 53 (Fig. 3) is in zero the time position should not be synchronized on the cycle and, therefore, there should not be a logical unit signal on the output 68 of the analyzer 50. After writing to the memory block 51 of the vertical bus 12, the control signal is inserted into the control unit 51 from the outputs 63 and 68 of the receive 15 sync signal. If logical unit is present at output 63, and logical zero is output at output 68, which indicates correct operation, then the control machine in the corresponding CCS in the zero position records the number of the selected contact 33 of group 29 (Fig. 1). As a result of this entry in the PLC in the commutation field, the path of the clock signal is provided from the clock generator 30 through the selected contact 33 of group 29, vertical bus 12 and through the input 54 (Fig. 3) to the clock receiving unit 15. At the same time, if the ko1talk selected to transmit the corresponding tone signal to the subscriber is intact, the sync signal will go to the analyzer 50 via the input 54 of the contact 53 and the collection circuit 55. At the output 68 of the analyzer 50 (Fig. 3) the signal will appear as logical units. The control machine, having received the indicated signal, erases the entry in the FPGA produced for the zero time position, and records the selected contact number 33 of the group 29 (FIG. 1) in the same FPGA for the subscriber. If it is necessary to send a certain tone to the subscriber, the vertical bus tire is recorded in the memory block 51 in binary code with parity, and the vertical bus number is fed to the decoder 52. In the case of the health of the block 51 and the decoder 52, the signal as a logical unit of only one output of the decoder 52. If the number of the vertical bus 12 contains an even number of logical units (pulses), then the signal is sent to one of the outputs of the decoder 52 connected to the collector circuit 57. When the collection circuit 7 is passed, this signal will cause the logical unit on one input of circuit 6 to coincide with the output of circuit 57. Since At all inputs on all inputs of circuit 58, the signals correspond to logical zero, the output of the signal also corresponds to a logical zero. and when the inverter 59 passes, this signal is passed on another input of the circuit 61 to coincide as a logical unit. Further, if the vertical bus number contains an even number of logical units, then at the input 64 of the block 51 an undistorted signal from the control machine and with the correct operation of the block 51, the signal at the forward output of the parity bit contains a logical zero, and at the inverted output - logical unit. Therefore, the third input of the matching circuit 61, associated with the inverted output of the parity check bit, must receive a logical one signal. Since the signal of the logical unit is present at all three inputs of the circuit 1 of coincidence, it is also available at its output, and through circuit 62 - at output 63, in the form of the correct operation of block 51, decoder 52, circuit 56, and also that an undistorted signal came to the input 64 of block 51. At the same time, at all inputs of schelta 60 there is a coincidence signal of logical zero. If the number of vertical nsny 12 contains an odd number of logical units, then the signal is on one of the outputs of the decoder 52 associated with the circuit 58. Reasonings similar to the considered case of an even number of units in the number of the vertical bus show that if the block 51 is working correctly memory, decoder 52, Coptrol circuit 56, and when the input 64 of the undistorted signal from the control unit arrives on all three inputs of circuit 60, there will be signals of a logical unit. and on all three inputs of the circuit 61 are the signals of the logical ZERO. At the output of circuit 60, and consequently, at the output 63 of circuit 62, the signal of a logical unit is received. Any single error of block 51, or a decoder 52, or c-schema 56, or any odd number of errors in the duplication of information from the control mantle at input 64 of block 15 will cause the appearance of a logical zero signal, at least on one of the of the inputs of the circuit 61 Coincidence with an even number of ones in the number of the hinged bus or at least one of the inputs of the circuit 60 coincides in the case of an odd number of ones, which will ensure the appearance of a logical zero on the outputs of these circuits and, consequently, the inputs of the circuit 62 and output 63. Schemes 60 and 61 are identical. and the collecting circuit 62 can also be monitored by periodically checking the base machine of the initial state b.-eye 15, for which the controlling machine supplies the input 64 of the signal, cocTOjinuiii only from logical zeros. This will cause only the signals corresponding to logical zero on all outputs of the decoder 52, and therefore on the outputs of circuits 57 and 58, and at the output 63 of the circuit 56 of Coptrol. The appearance of a logical zero signal at output 63 indicates the correct operation of circuit 56 in the initial state of block 15. The operation of the switching field and control device when a connection is established from incoming interconnecting lines through a three-stage block 2 using constant delay devices 18 to outgoing interconnects The line is as follows. When installing the path between two subscribers through a three-stage block 2 using devices 18 of constant delay, two adjacent devices 18 are used, one of which is used to pass signals from subscriber A to subscriber B, and the other from subscriber B to subscriber A. For example, if subscriber A is given the fifth temporal position and subscriber B the eighth, then for passing signals from subscriber A to subscriber B use device 18, which has a delay equal to three time intervals., and for passage of signals from subscriber B to ab netgtu A - twenty-nine temporal positions (29, 32-3). Before connecting the connection between the two subscribers, the control machine via input 64 (Fig. 3 writes to memory block 51 the number of vertical bus 12 (Fig. 1)), relating to the AUCTION connecting lines in the direction to the subscriber A in binary code with parity Next, the machine will analyze the signals at the outputs 48 of block 23 n at the outputs 68 and 63 of block 15 (Fig. 3). If the first stage 11 is working correctly (fig. II devices 18, the connecting device 22 and block 23 on TWO outputs 48 of block 23 should logical zero signals are present. The third stage 14 and block 15 should have a logical zero signal at output 68, and a logical unit at output 63 (Fig. 3). After these signals, the control machine records the reception of the correct operation, which is assigned to a vertical 9 (fig. 1) connected to the input of the connecting line from subscriber A, and behind the hinge bus 12. connected to the outgoing connecting lines in the direction of the subscriber A, in the zero time position, the number chosen for subscriber B to a Bonent A horizontal bus. As a result of this entry in the PLC in the commutation field, the path of the clock signal from the driver 20 is provided via the corresponding contact 33 of the third stage 14, vertical cable 12, connected to the outgoing connector 11

In the direction to the subscriber A, in the synchronization signal receiving block 15, control .larimna analyzes the signal at the output 68 of the block 15. If the output 68 has a logic signal. That indicates the correct operation, the control machine writes into memory block 5 (Fig. 3) instead of the vertical bus number 12 (Fig. I), belonging to subscriber A, no. of vertical bus 12, associated with the use of the drive. connecting line in the direction to the subscriber B. However, since the bottom for the sync signal from the imaging unit 20 to the output 7, since the connection line to the subscriber 6 is not connected, the output 68 of the unit 15 must have a logical zero signal. The control machine, having received the indicated operation, indicating the correct operation, records in the PDCU, which is attached to the vertical pin 9, connected to the input by its connecting line with the subscriber B and the vertical link 2 connected to the outgoing connecting line. the direction to the subscriber B, in the zero time position of the selected for communication from subscriber A to subscriber of horizontal n-ins. As a result of the specified entry in the PLC in the switching field, independent paths of the clock signal are provided:

a) from incoming connection lines connected to subscribers .A and B via vertical tires 9 and OST: chio gon -; - you are 33 of the first cascade 11, two adjacent vsroyroystva 18 constant delay, connecting devices 22 to block 23 receive clock;

b) from the synchro shaper 20 via the corresponding KPG1Taktsy of the Z – H cascade 14, vertical pshny, 12, connected with the subscribers An B.N. to the block 1I gpnel sync. When the operation of the first stage 11 is pleasant, the devices 18, the connecting device 22 and the .3 HR unit have two outputs. x

48 block 23 should be a signal of a logical unit. With the correct driver 20, the third cascade 14, and the scraper 15 at the output 68 should pris; - there is a logical single signal. The last signal indicates the correct passage of the sync signal from the imaging unit 20 to the vertical chord 12, associated with subscriber B. After receiving these signals, indicating correct operation, the control machine erases the undersight in the PDCNP, H ;; position, about the numbers selected for communication between} s of horizontal horizons, and writes the same information to these PDSs, but at the time positions selected for the connection between subscribers.

The work of switching over and installation of control when establishing co-type three-stage unit 2 using time delay devices 19 analogue of the described.

12

The operation of the clock receiving unit 23 is as follows. The signals of the message channels and the sync signals from the devices 18 of constant and 19 variable delays through the connecting device 22 arrive at the information inputs 38 (Fig. 2) of the contacts 37, which are part of the connecting device 35. The control inputs 39 of the contacts 37 receive signals from the synthesizing a generator for contacts 37 connected to constant delay devices 18 (FIG. 1) and from OZUKP controlling the operation of time switching stage 17 for contacts 37 (FIG. 2) connected to time delay devices 19 (FIG. 1) . The signals supplied to the control inputs 39 (FIG. 2) ensure that only the sync signal passes through the contacts 37, which, having passed through the acquisition circuit 40, is fed to the input of the analyzer 36.

In accordance with the considered operation of the switching floor and the control device, when establishing a connection through a three-stage block 2 (Fig. 1), the information inputs 38 (Fng. 2) of the synchronization signal receiving block 23 can be received during one n, and no more than two sync signals, one of which are used to control the path from the incoming trunk connected to subscriber A to block 23, and the other from the incoming connecting line connected to subscriber B to block 23. The moment of arrival of these two sync signals to the block 23 depends on the values of delays in devices 18 and 19 (Fig. 1) and cannot coincide in time.

Selected using contacts 37 (Fig. 2, the synchronous circuits are fed to the serial code converter 4 in parallel. The pastuer 41 can be written on the shift register with a sequential write and parallel reading. In this shift register p, the dependency is from the type of sync signal is used as direct and investment outputs. The outputs of the transducer 41 are connected to the identifier 42. The co-driver represents the same coincidence circuit on eight inputs. On the output of the recognition of the bodies 42 the signal .o appears. , g case when pr The combinan kn5tta coincides with the sync signal of HHKIV and is fed to the inputs of the circuits 43 and 44 of the match. To the input 45 of the circuit 43, co-connected are received from the general generation of sigNOTA, which correspond to the time positions "1," 2, "3, ...." n channels,. on input 46 of circuit 44, coincidences are signals corresponding to the interim positions of L-1, .V - 2, .V - 3, ..., L-n channels in the considered example, and). Using schemes 43 and 44 of the coincidence HpoHcxo.fTHT, the separation of the recognition signals received at the output of the body 42 into two groups. The results of it.:;: Panii one group caused by passers. M1 synchronous signal from the incoming connective

13

a line associated, for example, with subscriber A, and the results of recognition of another group are caused by the passage of a sync signal from the input-line of the connecting line associated with subscriber B. The results of identification of each; The groups are separately fed to the corresponding solver 47. Each solver 47 47 forms and delivers a logical unit signal to the corresponding output 48 only if three times a sync signal is detected in this group.

The control device will provide an opportunity to verify the switching floor and control blocks with high resolving power. At the same time, the volume and performance of control operations may differ from the foregoing.

Obviously, the control during the establishment of the described connections makes it possible to detect a fault mainly only in those parts of the switching zero and control blocks that are used in establishing specific connections and, therefore, depends on the flow of requirements arriving at the station and on the chosen path in the combination field. . The test periodic monitoring of the equipment of the switching field of the control device, consisting of a series of checks and carried out automatically or at the request of the operator, is free from shortcomings and allows choosing different paths in the switching field according to the specified strategy to check all the equipment of the switching floor and control devices. The operation of the switching field and the device for controlling the implementation of the test control are performed using the same blocks and the connections between them, which were described earlier when the control was considered during connection establishment.

The control device allows:

- to make control of the equipment of the switching field and control units during the establishment of the connection;

- detect any single malfunction both in the tested contacts of the switching floor and in the control units, - how and errors in the transmission of information from the control machine;

- to carry out, mainly in the hours of low load, test non-periodic monitoring of the equipment of the switching field of the control units, without disconnecting the corresponding equipment;

- to carry out test periodic monitoring of the equipment of the switching floor and the control units, regardless of the occupation of the connecting lines and channels (this feature is one of the most significant advantages);

-determine the nature of the error (failure of the nlp failure) in the operation of the co-mutation noll an olokov control. This possibility is achieved, if an error is detected, by repeated

14

control of the same switching floor units and control;

-localize the location of the fault with a high diagnostic ability;

- g: oi nalnnn uncompliant switching floor contacts to establish a connection through working contacts. This possibility is achieved by detecting unauthorized contacts during control during connection establishment or during test control and marking of them.

These features allow you to meet the specified stringent requirements for the reliability of the commuting field and the complexity of its service.

It should also be borne in mind that when implementing the proposed device for controlling the tantan field, there are specific node or transit stations that do not have some controllable objects from the number mentioned above (for example, a time switch cascade with delay elements or a code-switch block dialing receivers, etc.), the specific implementation of the present invention may be simplified by eliminating elements and links related to detachment 1, its control element.

Prevention Invention

1. A device for control of the switching field of an electronic automatic telephone station with a code-pulse module and pulse-time division of channels, consisting of input switching blocks of incoming and outgoing sealed connecting lines with a cascade of temporary switching in one of them, of a switching unit of receivers dialing, the switching unit of the tone generators, the general station signal pickup containing the block of reception of the sync signal by nlklu and the sync signal generator, which is n nye with that. that, in order to reduce the equipment needed for controlling switching, the ion field of the electronic LTs, the sync signal receiving unit of the node is connected to the outgoing connecting:,; The sync signal generator to the switching unit of the tone signal generators, the second unit is connected to the dialing switching unit: receiving the sync signal on the cycle, and the third receiving unit on the clock circuit connected to the obnestancenon generator directly through the additional sync signal generator to the time cascade.

2. A device but n, 1, characterized in that a cycle clock receiving unit connected to a time switching cascade, a clock signal identifier connected to the duplex inputs of the coincidence circuit, the second inputs of which are the inputs of the cycle clock receiving unit.

15

3. The device according to PP. 1-2, characterized in that, in a clock receiving unit on a cycle connected to outgoing connecting lines, the address memory unit is connected through the descrambler to the control inputs of the information selection contacts, whose information inputs are the inputs of the cycle clock receiving unit, and the outputs of the contacts for selecting information through the collection circuit and the code converter are connected to the clock recognition signal, the outputs of the decoder are connected to two circuits

sixteen

Collecting mothers, the output of one of which is connected to the first input of the first matching circuit directly, and to the first input of the second matching circuit via an inverter, the output of the second of the collecting circuits is connected directly to the second input of the second matching circuit, and to the second input of the first matching circuit via an inverter ,., and the corresponding outputs of the memory block of addresses are connected to the third inputs of both coincidence circuits.