SU1758885A1 - Device for monitoring regenerator of digital data transmission system - Google Patents

Abstract

Use: electric power. SUMMARY OF THE INVENTION: The device comprises a pilot signal generator 1, a delay unit 2, a 3 error detector, a 4 error error calculator, a control unit 5, an address generator 6, a regeneration section simulator 7, a multiplexer 8, a noise sensor 9, a remote power supply simulator 10 controlled regenerator 11. 1 sludge

Description

The invention relates to telecommunications and can be used in the output control and tuning of regenerators and in assessing the quality of the linear paths of digital transmission systems (DSP).

The purpose of the invention is to increase the reliability of the control.

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

The device for monitoring the regenerator of the digital transmission system comprises a pilot signal generator 1, a delay unit 2, a 3 error detector, a calculator 4 error probabilities, a control block 5, an address generator 6, a regeneration section simulator 7, a multiplexer 8, a noise sensor 9, a simulator 10 remote power signals and controlled regenerator 11.

The device works as follows.

From the output of the control signal generator 1, the signal recoded by the corresponding code is fed to the delay block 2 and then read out by the multiplexer

8 from one of the taps of the delay unit 2, and the read order is determined by the address generation unit 6, which generates a periodic sequence, under the influence of which the multiplexer 8 reads the signal from a particular delay of the delay unit 2. Thus, the output signal of the multiplexer 8 is modulated in phase Next, the signal through the simulator 7 of the regeneration section, which, in accordance with the control signal from block 5, can simulate various types and lengths of cable, is fed to the regenerated test subject p (or linear path) 11 Simulator 10 of remote power supply signals is required to supply the corresponding voltages to the devices under test. The signal at the output of the regenerator 11 is monitored for digital errors by a 3 error detector and then processed by the calculator 4. which determines the probability of an error at the output of the regenerator 11

The interference sensor 9 performs the same functions as in the prototype. The difference is

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that the amount of interference at the output of the sensor 9 can be changed by the action of the signal coming from the control unit 5. This makes it possible to measure the error probability of the regenerator 11 at different values of the input phase jitter, different values of the input pulse noise, and different lengths of the regeneration section. For the number of measurements made, it is concluded that the oscillator 11 is not immune, i.e. the noise margin is determined.

Claims (1)

Claims An apparatus for monitoring a regenerator of a digital transmission system, comprising a pilot signal generator, a delay unit, a serially connected control unit, a simulator of the regeneration section, a controlled regenerator, and a error outlier, noise sensor and remote power signal simulator, the outputs of which are connected respectively to the control input of the regeneration section simulator and to the second input of the controlled regenerator, characterized in that, in order to increase the reliability of the control, an error probability calculator and serially connected address generator are introduced and a multiplexer, with the output of the error detector through the calculator connected to the input of the control unit, the second and third outputs of which are connected to the inputs of the corresponding Twain address generator and interference sensor and through a delay unit output a control signal generator connected to respective inputs of a multiplexer whose output is connected to the signal input of the simulator portion regeneration.