SU640442A1 - Automatic telegraphy station with checking of communication routes - Google Patents

Description

sets 3, outgoing switching field 4, outgoing line comiles 5, block 6 register iskai, registers 7 and 8, and the outputs of the incoming linear sets 1 through the incoming switching field 2 are connected to the inputs of the cord sets 3 and the inputs of block 6 of the register searches, outputs of cord sets 3 are connected to the inputs of block 6 and through the outgoing switching field 4 to the inputs of outgoing line sets 5, control block 9, block 10 connecting control block 9 and block 11 controls, and the outputs of block 6 are connected through block 10Connections with the inputs of registers 7 and 8 and the inputs of control unit 9, the outputs of which are connected to the inputs of control unit 11, the outputs of control unit AND are connected respectively to the wiring of the connection unit 10 and to the control inputs of registers 7 and 8, the starting outputs of which are connected to corresponding initial inputs of the block AND control.

The automatic telegraph station operates as follows.

The control of the connecting path is carried out after receiving from the caller (incoming linear sets 1) of registers 7 or 8 of the called subscriber number as follows; Before establishing the connection between the incoming and outgoing linear sets 1 and 5, the connecting path in the incoming switching field 2 is connected between the incoming linear set 1 and the push-pull set 3 and between the outgoing linear set 5 and push-pull comile 3; A register search block 6 between string set 3 and register 7 or 8 through which the connection is established is completed. In register 7 or 8, a command from the control unit 11 triggers the relay of the connection unit 10, which connects the inputs of the control unit 9 to the connecting path through the contacts 6 through the register search unit 6 to the register 7 or 8. In the linear sets 1 and 5 of the relay (on the drawing is not shown) before connecting the connecting path does not work, therefore the transmitters and receivers of the line sets 1 and 5 are disconnected from the connecting path. The relay in the cord sets 3 does not work and nothing is connected to the link path in the cord sets. Thus, there should be no potentials on the wires of the connecting path. The control unit 9 checks the absence of potentials on the wires of the connecting path, and if they are present, it reports this to the control unit 11, which classifies this information as the presence of extraneous signals. If the potentials on the wires

There are no paths, then the control unit 11 gives a command to occupy the linear sets 1 and 5, in which the relays operate and connect the transmitters and receivers of the linear sets 1 and 5 to the connecting path with their contacts. The control unit 9 determines the presence of the potentials of the transmitters and terminals on the wires of the connecting path, which indicates the connection of the connecting path, and transmits information about this to the AND control unit. The absence of potentials or the inconsistency of it with a given norm on any of the wires is classified by the AND control unit as a failure of the connecting path.

Thus, the connecting path is checked first for the presence of extraneous signals (potentials), and then for disconnection, and after the control of the connecting path is terminated, the relays of the connecting unit 10 open, and the transmitters and receivers of the linear sets 1 and 5 are connected to register 7 or 8, and block 9 the control returns to its original state.

In comparison with the known device, the proposed device provides continuous monitoring of connecting paths for the number of signals and the presence of extraneous signals during the establishment of each connection at the station. In addition, the amount of equipment is reduced, since for all the registers there is one control unit, and the reliability of the connection paths is increased by reducing the number of contacts and relays.

Claims (1)

Invention Formula Automatic telegraph station with control of connecting paths, containing incoming line sets, cable sets, outgoing line sets, incoming switching field, outgoing switching field, register search unit and registers, with the outputs of incoming linear sets connected via the incoming switching field the inputs of the cord sets and the inputs of the register search block, the outputs of the cord sets are connected to the inputs of the register search block and through the outgoing switching field - from Weeders of outgoing linear sets, characterized in that, in order to reduce losses in the processing of switched information, a control block, a control block connection block and a control block are entered into it, and the outputs of the register search unit are connected through the control block connection block to the register inputs and inputs of the control unit, the outputs of which are connected to the inputs of the control unit, while the outputs of the control unit are connected respectively to the control input of the connection unit of the control unit n with the control inputs of the respective registers, the starting outputs of which are connected to the corresponding starting inputs of the control unit. Sources of information taken into account during the examination 1. Patent of Germany No. 1287654, cl. 21 a 68/30, 1969.