SU1234988A1 - Regenerator of non-serviced station - Google Patents

Abstract

The invention relates to communications and m. used to transmit signals over cable lines. The functionality is extended by automatically generating an alarm. The device contains a correction amplifier 1, two threshold blocks 2 and 3, a block of the timing signal 4, a clock signal receiver 5, three elements OR 6.7 and 8, two control blocks (CU) 9 and 10, two blocks of coincidence 11 and 12, a generator emergency cycle (GAC) 13, linear signal replacement unit (BZLS) 14, information replacement unit 15, switch 16 and linear signal generator 17. In case of a linear signal loss or deterioration in its quality, when the sync signal at the receiver output of the sync signal 5 disappears, BU 10 generates a control signal, times The GATS 13 operation and its signal passing to the BZLS 14 inputs instead of the signals from the outputs of threshold blocks 2 and 3. GATS 13 generates two signals: an alarm cycle signal equivalent to a linear signal format, but in which all channel cycle positions are filled with Units, and a sync signal, corresponding to the branch channel number. The sync signal through the element OR 8 is fed to the matching blocks 11 and 12 and to the information replacement block 15, where the information of the communication channel is inserted into the emergency channel position signal. The goal is achieved by the introduction of two elements OR 7 and 8, BU 10, GAC 13 and BZLS 14. 1 Il. (GO 00 4 CO 00 00

Description

one

The invention relates to communications and can be used to transmit signals over cable lines.

The aim of the invention is to extend the functionality by automatically generating an alarm.

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

The regenerator contains a correction amplifier I, threshold blocks 2 and 3, block 4 for clock signal allocation, receiver 5 clock signal, elements OR 6-8, control blocks 9 and 10, blocks 11 and 12 coincidence generator 13 for the alarm cycle, block 14 for replacing a linear signal , block 15 replacement information, the switch 16, driver., 17 linear signal.

Regenerator unattended Punta works as follows.

The input of the regenerator (input of the correction amplifier 1) receives a linear signal in the code with alternating alternating polarity of the current supply (AMI code). The format of this signal is formed in the channel-forming equipment of the digital transmission system and consists of transmission cycles, where the beginning of each cycle is marked by a cycle sync signal, and the remaining clock intervals of the cycle are channel positions. 0t- regenerated pulses from the outputs of the threshold blocks 2 and 3 through the block 14 replacing the linear signal are fed to the input block 15 replacing information and the inputs of the element OR 7, and through the element OR 6 to the input of the receiver 5 sync signal, the second input of which receives a timing signal the output of the block 4 selection clock signal. From these signals, the receiver 5 of the sync signal extracts the cyclic sync signal and generates a sync signal at its output that is delayed relative to the selected cyclic sync signal by a predetermined number of clock intervals for the given regenerator in accordance with the allocated channel number. The sequence of pulses of the sync signal (the period is equal to the duration of the cycle of the linear signal) from the output of the receiver 5 of the sync signal goes to the input

349882

control unit 10, as well as through the OR element 8 to the input of the information replacement unit 15 and to the inputs of the blocks 11 and 12 coincidence

5 input of new information in block 15 of replacing information on a channel position marked by a sync signal. Element .OR 7 and block 11 matches are extracted from the received linear

 The signal pulses corresponding to the information of the dedicated communication channel, and the control unit 9 switches the switch 16 from one state to another if the c1 waves do not match.

 5 input and output signals of the branching communication channel arriving at the input of the control unit 9, respectively, from the outputs of the And blocks and 12 coincidence to form the correct 20 alternating polarity of the pulses. the output of the former 17 line signal.

When the communication line is working properly

J, the receiver 5 of the clock signal generates at its output a sequence of pulses of the clock signal, which is fed to the input of the control unit 10. The latter generates a control signal, which is fed to the input of the generator 13 of the emergency cycle and allows the passage of signals from the outputs of the threshold blocks 2 and 3 through the block 14 of the replacement of the linear signal, allowing the described

35 operation of the regenerator. In case of loss of the linear signal or deterioration of its quality, when the sync signal disappears at the output of the receiver 5 sync signal, the control unit 10, by the absence of a sequence of pulses of the sync signal at the input, generates another control signal at its output, which enables the generator 13

 the cycle and the passage of the signal generated at the output of the emergency cycle generator to the outputs of the block 14 for replacing a linear signal instead of signals from the outputs of the threshold blocks

50 2 and 3, the generator 13 of the emergency cycle at its output generates a signal of the emergency cycle, equivalent to the format of a linear signal, but in which all channel positions of the cycle

55 are filled with units, and at the other output is a sync signal corresponding to the number of the branching connection canap, which through the element OR 8 through 30

40

steps to the inputs of the first and second blocks 11 and 12 of the match and to the input of the information replacement unit 15, where the information of the link channel is entered into the emergency cycle signal. The other link regenerators, having received the signal formed as described, work with it , as with a normal linear signal. In this signal, the channel positions corresponding to the channels inputted into the line signal to the fault line and branched off after the fault point represent a continuous sequence of units, which corresponds to the SIAC alarm indication signal (A1) in accordance with the CCITT recommendation, and They also ensure high-quality operation of the block 4 of the timing signal, since there are no long sequences of zeros in the transmitted signal.

Claims (1)

Invention Formula Regenerator unattended point containing a correction amplifier, the outputs of which are respectively connected to one input of threshold blocks and to the inputs of a block of the timing signal, one output one connected to other inputs of the threshold block whose outputs are connected to the inputs of the first OR element, the output of which is connected to the first input the receiver of the sync signal, the second input of which is connected to another output of the block, the selection of the timing signal, the outputs of the information replacement block through the switch are connected to the inputs and a linear wave former, you Compiler N.Lazarev Editor K.Voloshchuk Tehred I.Popovich Proofreader A.T. 2991/59. Circulation 624 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 . Production and printing company, Uzhgorod, Project St., ten t5 20 five 0 five 0 The output of the left matching unit is connected to the first input of the first control unit, the second input of which is connected to the output of the second matching unit connected to the first input of the information replacement unit, the output of the first control unit is connected to the corresponding input of the switch, and the first input of the second matching unit is the channel input characterized in that, in order to extend the functionality by automatically generating an alarm, a second control unit, an emergency cycle, a linear signal replacement unit and two SHS elements, the outputs of the threshold blocks are connected respectively to the first and second inputs of a linear signal replacement unit, the third input of which is connected to the first input of the second OR element through a second unit controlled by the output of the linear signal connected to the first output of the emergency cycle generator, the input of which and the second output are connected respectively to the output of the second control unit and the fourth input of the linear signal replacement unit, the outputs of which are connected to the input The third element OR, connected to the second and third inputs of the information replacement unit, the fourth input of which is combined with. the first input of the first matching unit and connected to the output of the second SHS element connected to the second input of the second matching unit, with the second input of the first matching unit connected to the output of the third OR element. nor connected to the sync signal.