SU1494251A1 - Distributing frame remotely-controlled switchboard - Google Patents

Abstract

The invention relates to communication technology. The purpose of the invention is to improve the accuracy of switching. The switchboard contains a control unit 1 for short-time switching, memory blocks 2 and 3, a control unit 4 for switching, switching field 5, control panel 6, switching elements 7-12, triggers 13 and 14, elements OR 15, 16 and 17, element 18 and indicator 19. The goal is achieved by eliminating failures in the transmission of control commands. 3 il.

Description

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ICH is related to the SVYA-5I technique and can be equipped with a digital network in communication systems for communication / telephony, telegraphic channels and data transmission channels.

The goal of iSlope is to improve switching accuracy by eliminating failures in the transmission of control commands.

On fi. 1 shows a structural diagram of a remote-controlled cross coupling; in fig. 2 shows exemplary embodiments of a short-time switching control unit, a first and a second memory unit; FIG. 3 shows an example of the execution of the control unit 1C1.

The device contains (FIG. 1) block 1 of short-term control unit 1, first memory block 2, second memory block 3, switching control block 4, switching another field 5, control panel 1 6, first, second, third, fourth, fifth and sixth switch; 1D-1on elements 7-12, first trigger 13, second trigger 14, first element OR 15, second element OR 16, third element NL {17, element 18, indicator 19,

The control panel 6 contains a signal generation element 20 of a session TU, a switching recovery signal generation element 21 a channel number input unit 22, a unit 23, a communication line number input 24, a connection signal generation element 24 a disconnection signal generation element 25.

The short-time control unit 1 (FIG. 2) contains the shift register 26, the fourth element OR 27, the first pulse shaper 28, the second pulse shaper 29, the fifth 3neMeHf 1 shiro 30, the sixth and seventh element I.PI 31 and 32.

The first memory block 2 (FIG. 2) contains the first and second memory elements 33 and 34,

The second memory block 3 (FIG. 2) contains the first and second group of elements OR 35 and 36, the third and fourth elements of memory 37 and 38, the third group of elements OR 39, the encoder 40

The switching control unit 4 (FIG. 3) contains a link number decoder 41, a channel number decoder 42, a connection determination node 43, an eighth ele 51

 iLlII hA, dev tmy and ten elements OR 45 and, third and fourth 11 form, 1i pulses 47. and 48 seventh switching elements 49, eighth commuton elements 50, first, second, third and fourth elements of elements And 51 -54.

The device is slave-as follows,

To provide switching (connections of a given channel with the necessary communication line), the operator from the control panel 6 from blocks 22 and 23 enters the necessary channel and line numbers that are recorded in the corresponding third and fourth memory elements 37.38 of the second memory block 3 . After the operator sends from the control panel 6 (from element 24) to block 4 commands to connect based on the channel and line numbers from the second block 3, the necessary connection is made in the switching field 5. At the same time, the signal from element 24 goes through the second element OR 16 to the second trigger 14, which is triggered, and the signal from its output goes through the third element OR 17 to the indicator 19, to the first, second, third, quarter, fifth and sixth switching elements 7-12, which are blocked,

They exclude the possibility of entering numbers of channels and lines, as well as supplying control signals from the control panel 6 until the end of the necessary connection is completed in the switching field 5. Upon termination of the connection (as well as after disconnection), a receipt is received from block 4, which throws the second trigger 14 to the initial state, and the device enters the state of readiness for the next connection or disconnection.

The disconnection process is carried out in a similar way and is exposed only by the fact that the disconnect signal is output from control unit element 25 and for disconnection it is sufficient to record in the second block 3 only the channel number to be disconnected.

For a remote control session (TU) or telecontrol, a channel connected to the control panel is connected to the channel

five

6 (block 22), the number of the desired channel is recorded in the second memory block 3, and a session session signal is output from item 20. This signal arriving through the first OR 15 element triggers the first trigger 13, the signal from the output of which is fed to the element AND 18 and the third element OR 17, thus blocking the outputs of the control panel 6.

The signal of the TU session from the element 20 enters the second memory block 3, ensuring that the number of the switching field line 5 is written to it, to which the TU equipment element is connected

The signal from the output of element 20 also enters block 1 at the input of the fourth element OR 27, from the output of which it is fed to the clock input of the shift register 26 and shifts it by one cycle. The signal appears at the output of the fifth element OR 30 and enters the first memory block 2 and

At the end of the session gelech ..vig; - ki from the element 21 is managed; 6, a restore signal is issued. This signal enters P first and second blocks 2 and I memory and provides overwriting from the block 2 to the second block 3 channel numbers and lines that were connected before the start of the TU session. The signal from the output of the control panel 5 is also fed to block 1 at the input of the shift register 26.

At the fourth output of the shift register 21, a signal appears that through the sixth element OR 30. and the first pulse shaper 28 enters block 4, providing a disconnect of the channel used for the TU session with the line TU. The receipt from the output of block 4 transfers the shift register 26 to the next state. The signal from the output of the seventh element OR 31 enters block 4, ensuring that

thirty

control unit 4. The signal arriving at the formation of the connection, and the receipt in the first memory block 2, records in it the number of the channel through which the TU session will be held, and the number of the line connected to it. The signal arriving at block 4 (negative signal difference from the output of the first pulse shaper 28) provides for the formation in block 4 of control signals, which are used to disconnect B from the switching field 5 of the channel, and a TU session is carried out.

The receipt from the output of block 4 goes through AND 18 to block 1 and transfers the shift register 26 to the next state. The signal from the output of the sixth element OR 31 enters block 4, providing connection (connection) of the channel to the set (lii) of the equipment TU (the numbers of which are recorded in the second block 3 of memory).

35

40

45

from the output of this block, sets shift register 26 to the initial state.

The blocking of commands input for the connection recovery time is carried out in the same way as described.

The seventh and eighth switching elements 49 and 50 can either directly switch channels (lines) and be carried to the switching field 5, or control the switching elements located in the switching field 5.

In both cases, this causes the presence of two-way communications between block 4 and the switching field 5. When a command is sent to connect, it is fed to the input of the ten element OR 46 and depending on which outputs of the digits 41 and 42 there is a signal that provides the triggering of the corresponding seventh and eighth switching elements 49 and 50. By

Upon termination of the connection, by receipt of block 4, the shift register 26 in block 1 is transferred to the next state. The signal from the output of the seventh element OR 32 and the second pulse generator 29 goes to the first trigger 13, returning it to the open state. The signal at the trigger output disappears, removing the lock from the outputs of the control panel 6, which allows other connections to be made during the TU session.

the formation of the compound, and the receipt

from the output of this block, sets shift register 26 to the initial state.

The blocking of commands input for the connection recovery time is carried out in the same way as described.

The seventh and eighth switching elements 49 and 50 can either directly switch channels (lines) and be carried to the switching field 5, or control the switching elements located in the switching field 5.

In both cases, this causes the presence of two-way communications between block 4 and the switching field 5. When the command to connect is connected, it is fed to the input of the ten element OR 46 and depending on which outputs of the 41 and 42 there is a signal that provides the triggering of the corresponding seventh and eighth switching elements 49 and 50. By

the end of the connection (disconnection), the time of which can be set by the duration of the generated pulse (the third and fourth formers ig411ulsov 478), a receipt is issued

from the eighth element OR 44.

Claims (1)

Invention Formula Remotely Controlled Cross Switch Including Remote Controller the connections connected in series by the short-time switching control unit, the first memory block, the second memory block, the control block. switching and switching field, the outputs of which are connected to the second inputs of the switching control unit, the second outputs and third inputs of which are connected respectively to the IQ second inputs of the first memory block and the second outputs of the short switching control unit, in order to increase the switching accuracy 15 by eliminating failures in the transmission of control commands, the first to sixth switching elements are introduced, the inputs of which are connected to the corresponding outputs of the console20 control, the first OR element and the first trigger, the second OR element and the second trigger, the third OR element, the AND element 25 to the indicator, whose input is combined with the control inputs from the first to the sixth switching elements and connected to the output of the third the OR element, the first input of which 30 is connected to the output of the first trigger and combined with the first input of the AND element, the output of which is connected to the first input of the short-time switching control unit, the second input of which is connected It is connected to the output of the first switching element, the first input of the first element OR, and the second input of the second memory block, the third and fourth inputs of which are connected respectively to the outputs of the third and fourth switching elements and the fifth input of the second memory block is connected to the code of the second switching element and combined with the third input of the first memory block, the second input of the first element OR, and the third input of the control unit of short-term switching, the third output of which is connected to the second input of the first trigger, and the fourth input of the switching control unit to the output of the fifth switching element and the first input of the second OR element, the second input of which is connected to the output of the sixth switching element and the fifth input of the switching control unit, the third output of which is connected to the second input of the And element and the second input of the second trigger , the output of which is connected to the second input of the third element OR. ft3-2 50-2 5G (52 J Phie