SU1298950A1 - Device for checking multiple coordinate connectors in jack field - Google Patents

Abstract

The invention relates to telecommunications. The purpose of the invention is to increase the credibility due to the implementation of operational control before connecting the connection. The control device contains a voltage source 1, an executive threshold unit (UPS) 2, switching elements 3 and 4 respectively. responsible horizontals and verticals commutation floor, implemented in the form of C /) o 00 X

Description

control of electronic keys, switch-off units (BO) 5 and 6, respectively, of verticals and horizontals, as well as a switching field 11 with coordinate connectors 12. The goal is achieved by introducing BO 5 and 6, each consisting of inverter 7 and circuits 8, made of AND elements -NOT 9 and inverters

The invention relates to telecommunications engineering and can be used in automatic telephone (telegraph) stations for monitoring multiple coordinate connectors in a switching field.

The purpose of the invention is to increase the reliability by performing operational control before connecting the connection.

FIG. Figure 1 shows the structural electrical circuit of the proposed device; in fig. 2 shows an embodiment of an execution threshold unit.

The control device of multiple coordinate connectors in the switching field contains the SOURCE 1 voltage, the executive threshold unit 2, the switching elements 3, -3 of the horizontals of the switching field, implemented as controlled electronic switches, the switching elements 4, -4 vertical switching fields, and - disabled in the form of controlled electronic keys, block 5 of turning off verticals block 6 of turning off contour lines, each of which consists of an inverter 7 and respectively of f and k circuits 8 (-8j and 8, -8k, each of which consists of of the connected elements I-HE 9 and the inverter 10. Fig. 1 also shows a switching field 11 with coordinate connectors 12 "-12i ,.

The executive threshold unit 2 contains two potentiometers 13 and 1A, five resistors 15-19, and two compressors 20 and 21.

The device works as follows.

10, with the help of which operational control is carried out before connecting the connection. Dana il. performance of the UPS 2, which generates the Norma signal in the absence of faults and the Avariya signal in the event of an undesirable false connection. 2 Il.

0

15

20 35

40

25

In the initial state (Fig. 1), all switching elements 3, -3 horizontals of the switching field and all switching elements 4, -4. the switching field verticals are in the off state and no current flows through the actuating threshold unit 2. In the absence of malfunctions for switching on one coordinate connector, for example 12, switching field 11, on command from the control unit (not shown in Fig. 1), the corresponding switching elements 3, and 4 switch to the on state and along the circuit from one source pole 1 voltage, switching element 3,, the coordinate connector 12, (, switching element 4, the actuating threshold unit 2, the other pole of the voltage source 1 flows a current of nominal magnitude necessary to enable one of the coordinate connectors 12 „-12 ,.

When a nominal value current flows through the executive threshold unit 2, the first comparator 20 (FIG. 2) generates a Norma signal at its second output — a signal indicating the absence of malfunctions.

In the event of an undesirable false compound, i.e. the possibility of unauthorized switching on of one more coordinate connector 12 simultaneously, which may occur due to a malfunction of the switching element 3 or the appearance of a short circuit in the switching field 11 between the first and second horizons, through the executive threshold unit 2 (its resistor 17

the current will be doubled compared to the nominal value.

The second comparator 21 performer of the threshold block 2 absorbs the signal of Avariya, which is fed from the first output of the executive threshold block 2 to the inhibitory inputs of blocks 5 and 6. In them, this signal through the inverter 7 enters the first inputs of all chains 8, 8, -8ts , prohibiting further passage of the switch-on signal of the switching element 4 from the control unit (not shown in Fig. 1) through the series-connected element AND-HE 9 and the inf5 of the floor connectors of the commutator 10. Switching element 4 of the vertical commutation element lyuchaets, obestochiv.tsep incorporation authorized compound at the above fault in the switching field 11, 20 Analogously unit 6 turns off the switching element 3 ,. Similar to the situation

the second information input of the executive threshold block, the other pole of the voltage source is connected to the second information input of the executive threshold block, characterized in that, in order to increase the reliability by performing operational control before connecting, the vertical shutdown block and the second information input of the executive are entered the threshold unit, the other pole of the voltage source is connected to the second information input of the executive threshold unit, characterized in that In order to increase reliability by performing on-line control before connecting, a vertical disconnecting block is introduced when a diode of the coordinate connection is broken, for example.

Using the potentiometer 13 (FIG. 2) 25 and the resistor 18, the magnitude of the kaleas and the horizon-reference disconnecting unit are set, equal to the dip, each of which consists of the voltage on the Inverter threshold resistor 17 and f and k circuits (where f - when current flows through it, the nomi number of verticals of the switching field, of a nominal value equal to the current on; 30 k is the number of horizontals of the switching field of one coordinate connection), each of which consists of 12, - 12 | j , and with the help of potentiometers, series 14 elements and resistors and 19 exposes the AND-NAND and inverter, the outputs of which are of the same reference voltage, correspond to the control outputs corresponding to the voltage drop at the actual vertical power off units through the threshold resistor 17 current more than rated.

In the absence of faults, the first comparator 20 is triggered, when a fault occurs 40, the second comparator 21 is triggered. Resistors 15 and 16 serve to limit the input signal supplied from the switching field 11 to the inputs of both the comparatory elements of verticals and mountains 20 and 21. Taps switching floor performed

kalya and horizontals, whose information inputs are the first inputs of the NAND element, the second inputs of which are combined and connected to the output of the inverter, whose input is respectively the input of the horizontal horizontals and vertical disconnecting blocks and the first output of the executive threshold block

in the form of controllable electronic keys, the control inputs of which are connected respectively to the control of the coordinate connectors in the com-50 field outputs of the block off verticals

Claims (1)

The invention of the device control multiple mutations containing a source for example the executive threshold block whose reference input is connected to one pole of the voltage source, switching elements of verticals switching field, input and output of which are connected respectively to the first terminals of the respective switching connectors and the first information input of the executive threshold block whose input and output are connected respectively with the second conclusions of the corresponding coordinates and the second information input execute The other threshold of the voltage source is connected to the second information input of the executive threshold unit, characterized in that, in order to increase the reliability by performing operational control before connecting, a vertical shutdown unit and a horizontal shutdown unit are introduced, each of which consists of an inverter and f and k circuits (where f is the number of verticals of the commutation field, the number of horizontals of the commutation field), each of which consists of the AND-NES element and the inverter, successively connected the outputs of which are control outputs, respectively, of the blocks for turning off the vertical No kalyas and a block to turn off horizontals, each of which consists of an Inverter and f and k circuits (where f is the number of verticals of the switching field, k is the number of horizontals of the switching field), each of which consists of series-connected elements AND -NON and inverter, whose outputs are control outputs, respectively tational elements of verticals and horizons of switching field are made kalya and horizontals, whose information inputs are the first inputs of the NAND element, the second inputs of which are combined and connected to the output of the inverter, whose input is respectively the input of the horizontal horizontals and vertical disconnecting blocks and the first output of the executive threshold block and block horizontals off. Norm  TO comm, 21 Avari Editor A. Shandor Compiled by E. Golub Tehred A. Kravchuk Order 901/161 Circulation 639Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 Proofreader L. Patay