SU474117A1 - Telegraph substation channel switching system - Google Patents

Description

(54) TELEGRAPHIC SUBSTATION OF CHANNEL COMMUTATION SYSTEM

The registers 7 are included in the verticals of the register connection block 2 and are associated with a scale counter 8.

The substation control unit 9 is associated with a subscriber search marker 6 with registers, a grid and a non-indexed and excess load transfer device 10, the latter is included in the co-tacts of the subscriber level 1 stage 1 and is associated with a scaler 8.

Telegraph nodstantsi works as follows.

In the outgoing connection, when the subscriber presses the call button on the calling device, the subscriber sets receive a positive signal, which is a call signal from the subscriber. The subscriber search marker and control set that determines the subscriber search stage for servicing this calling subscriber set are occupied. If the subscriber set is not engaged in servicing the incoming communication, then it begins to serve this outgoing communication, for which the control circuit transmits a non-transmitted permission signal of the caller's category, which is transmitted from the subscriber search marker to the control set.

After this, a test is made to enter and fill a free set of long-distance communications and a register, and then transfer to the selected register information about the category of the caller. At the end of the operation of the selection magnets, the holding blocks and registers are connected to the register register and the subscriber search steps, which relate to the selected register and to the caller's line.

After completing the set, the long-distance communications kit receives a connection through the subscriber search stage with the subscriber sets.

In the incoming connection, the call signal coming from the channel is sensed by the monitoring kit of the telecommunications kit, which closes the loop of the telecommunications kit identifier in the control kit.

In the process of identification, the control unit, through the register connection unit, performs a test of the registers for occupancy and, in the presence of a free register, connects a long-distance communication kit to it. The register in the direction of the reference station transmits a response signal, and then fixes three digits from the register of the reference station. After receiving the third digit of the number, the register is connected to the scaler and transmits the fixed number to it. The counter counts the two-digit number of the subscriber.

From the register, a chain of subscriber sets of the called subscriber is created by means of a counting device. After the subscriber sets have been taken, the subscriber search marker closes the connections on the subscriber search stage. Subscriber search token, control set, register and non-recaller are then released.

To establish a connection from the non-indexed and excess load transmission device to the subscriber, the operator dials his number. If the non-counter is free, a non-indexed and overload transmission device is connected to it. The transmitter receives information about the number of the required subscriber;., And the controlling computer; jeKT - informationformat1: about the category of this subscriber.

The non-indexing and overload transmission device and the scaler create a trial value of subscriber sets. If the subscriber is free, the trigger circuit of the selection and switching magnets of the subscriber search stage is activated.

After the connection is completed, at the subscriber search steps, the subscriber sets receive a signal, by which the test circuit switches to a free serially activated non-indexing and overload transmission device, the scaler is released and the telegraph information is received and transmitted.

To establish an incoming connection to a non-indexed and overload transmission device, when a subscriber dials a non-indexed and overload transmission device number, the register takes up a recalculator and sends a redirect signal to the device to a non-indexed and overload device. The control kit carries out a test for occupancy of the non-indexed and overload transmission device.

If the transmission device is non-indexed and the excess load is free, then it creates a pick-up and switching-magnet triggering circuit at the user search stage.

After disconnection of the connection, at the subscriber search stage and the subscriber set, a signal is received by which the sample circuit of the free transfer device of the non-indexed and excess load is switched to the free serially switched on transfer device of the non-indexed and excess load.

The recalculer is released, the reception and transmission of telegraph information are prepared, as a result of which the transmission device is not indexed and the excess load is connected to the calling subscriber.

Claims (1)

Invention Formula The telegraph substation of the channel switching system containing subscriber sets, one of the outputs of which are connected with the inputs of the subscriber search stage, and the other outputs are connected to the subscriber search marker connected to the control circuits with the outputs of the subscriber search stage and simultaneously with the inputs of the long-distance and local communication sets, the outputs of which are connected through the register connection unit and the control set with registers, and the latter with a scaler, characterized in that, in order to reduce hardware costs and reduce the service time of connections by simplifying the processing of non-indexed and excessive load, A device for transmission of non-indexed and excess load is introduced, the reception and transmission circuits of which are connected to the outputs of the subscriber search stage, the control circuits and the transmission networks of the subscriber number are connected respectively to the control inputs of the control set and the recalculator, the outputs of which are connected to one of the inputs of the subscriber sets; the outputs and the input of the executive elements of the control set are connected respectively to the distant and local communication sets, the subscriber search marker and recalculation counter.