SU447773A1 - Control and switching device of single-junction switching fields - Google Patents

Description

The invention relates to telecommunications, namely, to contour switching and can be used in switches for various purposes to ensure reliable switching on of one and only one relay of a selected direction.

The switching devices of single-link switching fields are known, in which the switching-on-field relay is turned on during the time of the action of a single switching pulse generated by the corresponding pulse generators.

However, in such a looping device, there is not sufficiently effective control of switching on the switching field relay and the possibility of switching on two relays of one direction is not excluded, which can lead to loss of communication.

The aim of the invention is to ensure reliable inclusion

in the switching field only one

first relay of the selected direction.

For the total, the relay contact control relay contacts are connected to the sending signal contact circuit via the diodes in the forward direction, the disconnecting contacts of which are connected to the control relay winding are free, and the closing contacts are connected to the control relay winding Neither this nor the windings of the hold-reset relay, the opposite terminals of which windings are connected to the closing contact of the state control relay is connected to the power circuit of the relay winding warning light state occupied by the NC included KOH-jcaKT additional relay winding is connected to the NC contact control relay coupled state and the switch contact monitoring relay state freely. The drawing shows a diagram of the device .- ,,. . The control unit of the single-link fields contains a relay I, all address I / I contacts of which are open in the initial state, RTD 2, relays of hold hold 2, contacts 2/1 and 2/2 of which are closed in the initial state. The switching field relay is de-energized and with its contactors disconnecting the trigger of the hold control relay 3, the switching contacts 3/1 of the relay 3 are connected to the control state winding freely 4, Relay 4 has its switching contact 4/1 disconnecting the signal supply circuit to contacts I / I. In addition, the device contains diodes 5, through which the switching contacts 3/1 are connected to the winding state of the S relay, the other end of the winding of the relay 6 is connected to the positive pole of the power supply source via the disconnecting contact 7/1. . The winding of the relay 7 one end is connected to the negative pole of the power supply, and the other is connected to the connection point of the switching contact 4/1 and the disconnecting contact 6/1. The closing contact 6/2 is connected to the windings of relay 2. The other ends of the windings of the relay 2 are connected to the plugs 3/2, The device works in the following way. Two any relays I operate and negative address signals through diodes 8 are fed to the corresponding switching contacts 3/1. If the relays of this direction did not work / the corresponding relays 3 also did not work /, then only relay 4 is triggered, which, by its contact 4/1, prepares the switching floor relay operation. When a positive signal is received, the connection of the switching floor relay triggers and self-locks. A relay 7t which, by its contact 7/1 break 4, 4, triggers the operating circuit of relay 6, and ignited relay 6, which appears as the cut-off floor relay operates, does not affect its operation. After both relays 3 release, release the relay 4, terminating the sending of the connection signal and generate a reset signal for relay I. If, when address signals are sent, at least one of the directions is occupied by another connection / the corresponding relay 3 is in an excited state /, Then, the relay 6 triggers from the output of relay 4, the switching contact 6/1 of which prepares the operation of the corresponding relay 2. When the signal arrives, the connection first trips relay 2. After that, the switching field relay of this direction releases and releases stvuyuschee relay 3. The relay 2 will release only when releases the relay 6, which will release only when the relay 3 is turned off, i.e., the relay of the cut-off field of the selected direction will be switched off, and then the corresponding relays of the switch will be switched on. th floor as described above. TEXT OF THE INVENTION A monitoring and switching device of single-link koshutuatsionnyh fields, containing address relays, control relays and relays reset holding kolgutatsionnogo field, characterized in that, in order to ensure the reliable inclusion in the switching field of a single relay of the selected direction, send the addressable signals to switch on the floor through the diodes in the past direction included the switching contacts of the holding control relay, opening the contacts of which are connected to the winding of the state control relay it is free, and the contact contacts through the diodes in the forward direction are connected to the winding of the state control relay, and then to the windings of the hold-reset relay, opposite terminals of 447773

sopHX are connected to the lockout cable connected to the shmikuyashego

contact of the relay of the state control

 This is connected to the power circuit

ki relay control state zantatau barely K

then the disconnecting contact is activated.

1st relay relay, cov.wiiidpi winding,