SU882030A1 - Communication channel switching device - Google Patents

Description

(54) DEVICE FOR CHANNELS XCOMMUTATION The invention relates to a communication technique and can be used to cross-connect telephone, telegraph channels, data transmission channels and also for switching any circuits requiring rapid switching. A device for switching kangshov communications is known, which contains a switching matrix, the output of which is connected to the first input of the control decoder unit, the second INPUT, and the output of which are connected respectively to the output of the sensor of control signals and the input of the block of generation of command signals, the output of which is connected to the input of the sensor control signals, while the corresponding outputs of the switching matrix are connected to the inputs of the elements OR, the outputs of which are connected to the inputs of the element AND whose output is connected to the first the key block stroke, the second input and output of which are connected respectively to the output of the switching signal shaping unit and the first input of the switching matrix, to the second input of which the output of the first reset signal generating unit is connected (1. CONNECTIONS However, the known device has low speed. Purpose of the Invention - increase of speed. For this purpose, the device for switching communication channels containing a com- mutational matrix, the output of which is connected to the first input of the decoder block of control, the second input and output which is connected respectively to the sensor output of the control signals and the input of the command signal generation unit, the output of which is connected to the sensor input of the control signals, while the corresponding outputs of the switching matrix are connected to the inputs of the OR elements, whose outputs are connected to the inputs of the AND element whose output is connected to the first input key block, the second input and output of which are connected respectively to the output of the switching signal generating unit and the first input of the switching matrix, to the second input One of which is connected to the output of the first signal generation unit, two decoders are added to the second signal generation unit, two counters and a generator of pulses, the outputs of which are connected to the first inputs of the meters, the first outputs of which are connected to additional inputs of the command signal generation unit, additional outputs of which are connected to the inputs of the clock pulse generator and the second inputs of the counters, the second and third outputs of which are connected to the inputs of the block, respectively Formation of the reset signal and the inputs of the switching signal generating unit, the output of the second reset signal generating unit being connected to the third input of the switching matrix.

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

The device for switching communication channels contains a switching matrix 1, a control decoder block 2, a command signal generating unit 3, a control signal sensor 4, ffsa element OR 5 and b, an And 7 element, a key block 8, a switching signal generating unit 9, a generator 10 clock pulses, two counters 11 and 12, two decoders 13 and 14, the first and second blocks of forming a reset signal 15 and 16, respectively. The formation of the switching signals and the reset of the connections of the switching matrix 1 is carried out by commands coming from the generalized input selection button and the generalized output selection button of the command signal generation unit 3 to two counters 11 and 12 and the clock generator 10.

When the input selection button is pressed, the command arrives at the clock pulse generator 10 and at the counter 11. Under the influence of the output pulses of the generator 10, the counter 11 generates control pulses that sequentially act on their key stages, preparing them for operation. Simultaneously, from the information output of the counter 11, the counting signals are transmitted to the decoder 13 and then to the digital indicator of the input number of the command signal generation unit 3.

When a number corresponding to the selected input appears on the digital indicator, the operator releases the button to select the input. In this case, the circuit for stopping the counter 11 is triggered, and it stops issuing the control and pulses, and the input number (corresponding to the last counting clock) is recorded on the digital input indicator. At the moment when the counter 11 stops, the corresponding key stage occurs, and the output voltage of the counter 11 to the first reset signal generating unit 15 and the corresponding elements of the switching signal generating unit 9 are supplied with a control voltage. In the first block forming the reset signal 15, a reset signal of the selected input is generated. This signal is fed to the switching matrix 1 and resets all binary elements of the selected one.

When you click the Output Select button, the command goes to counter 12 and the clock pulse generator 10 / and, similarly to the described, it forms the output reset signal in the second reset signal generating unit 16, sent to KON & i matrix 1, the selected output number signal in the decoder 14, which is displayed on the digital indicator of the output numbers of the command signal generation unit 3, and the control signal of the switching signal generation unit 9.

In the signal generation unit 9, when receiving signals about the numbers of the selected input and output, a control signal is generated by the binary elements of the coordinate switching matrix 1 located at the intersection of the coordinates of the specified input and output. This signal is sent to the key block 8, which is unlocked by the signal of the element 7, which is triggered by the simultaneous presence of signals from the elements OR 5 and 6 at its inputs. The latter are triggered by signals about the input and output switching 1 of the switching matrix.

The switching signal through the corresponding circuit of the key block 8 enters the binary elements located at the intersection of the coordinates of the switched input and output of the switching matrix 1, and co-switching occurs.

At the same time, a signal about the performed switching is generated, which through the control decoder block 2 is fed to the display panel of the command signal generation unit 3.

Signals about the connections made (receipts) are received from the signal circuits of the switching matrix 1 through block 2 to the coordinate field of the command signal generation unit 3, which displays the structure of the switching matrix 1 and the switching state of its inputs and outputs.

The health of the display elements of the command signal generation unit 3 is monitored by simultaneously sending signals through the unit 2 from the sensor of the control signals 4, which is triggered by an indication control command received from the command output control unit controlling the output of the command signals forming unit 3.

Thus, the main positive effect of the proposed mouth

Claims (1)

Claim A device for switching communication channels, comprising a switching matrix, the output of which is connected to the first input of the control decoder block 15, the second input and output of which are connected respectively to the output of the control signal sensor and the input of the command signal generating unit, the output of which is connected to the input of the control sensor 20 keys signals, while the corresponding outputs of the switching matrix are connected to the inputs of the OR elements, the outputs of which are connected to the inputs of the AND element, the output of which is connected to the first input of the unit and the keys, the second input and output of which are connected respectively with the output of the switching signal generating unit and the first input of the switching matrix, to the second input of which the output of the first reset signal generating unit is connected, which is different, in order to increase the speed of two decoders, a second block for generating a reset signal, two counters and a clock pulse generator are introduced, the outputs of which are connected to the first inputs of the counters, the first outputs of which are connected to additional inputs via decoders a command signal generation unit, the additional outputs of which are connected to the inputs of the clock pulse generator and the second inputs of the counters, the second and third _{hours of} which are connected respectively to the inputs of the reset signal generating units and the inputs of the switching signal generating unit, and the output of the second is connected to the third input of the switching matrix block forming a reset signal.