SU1336270A1 - Device for interfacing radio relay station with automatic telephone station - Google Patents

Abstract

The invention can be used in fixed and mobile communication nodes to create operational service communication between mobile subscribers. The purpose of the invention is to simplify the process of establishing a connection between a radio relay station and a telephone subscriber. The device contains a receiving unit 1, a transmitting unit 2, a telephone unit 3, a telegraph unit 4, an ATS 5, a telephone impulse relay 6, a transmitting one, a impulse relay 7, a relay 8 busy and disconnected, a connecting relay unit 9, a voltage source 10, normally open contacts (NRK) 11 receiving impulse relay, choke 12, coupling capacitor 13, NRK 14 busy and disconnect relays, normally closed contacts (NZK 15 transmitting impulse relay. When the connection is established, the subscriber dials the exit code to the radio relay station, to the PBX 5 takes a block 9 and the relay 8 is triggered. The NRK 14 is closed, and the voltage from source 10 is supplied through them through the NLC 15 to the simplex input of unit 4. In the latter, a tone signal is generated, which is transmitted to unit 2. This signal is transmitted to the other channel. a radio relay station connected to another PBX in its receiving unit 1. 1 or S (L with S5 1CH

Description

The invention relates to radio engineering and communication and can be used in fixed and mobile communication nodes to create operational service communication between mobile subscribers.

The purpose of the invention is to simplify the process of establishing a connection between a radio relay station and a telephone subscriber.

The drawing shows a structural electrical circuit of the interface of a radio relay station with an automatic telephone exchange.

The device contains receiving 1, transmitting 2, telephone 3, telegraph 4 blocks, automatic telephone station 5, receiving impulse relay 6, transmitting impulse relay 7, relay 8 busy and disconnecting, block 9 of connecting lines relay, voltage source 10, normally open contacts 11 of the receiving impulse relay, choke 12, separation capacitor 13, normally open contacts 14, hold and disconnect relays, normally closed contacts 15 of the transmitting impulse relay.

The interface device of a radio relay station with an automatic telephone exchange operates as follows.

When the connection is established, the subscriber of the telephone station dials the exit code to the radio relay station, at the automatic telephone station 5 block 9 is occupied and relay 8 is triggered. Normally open contacts 14 are closed and through them voltage from source 10 is applied through normally closed contacts 15 to the simplex telegraph input unit 4, in the latter, a tone signal is generated, which is transmitted to the transmitting unit 2. This signal is transmitted via a communication channel to another radio relay station connected to another PBX, to its receiving unit 1. The received signal is decrypted in the telegraph unit 4, as a result, the receiving impulse relay 6 is activated, connected to the simplex output of the telegraph unit 4. As a result of the receiving impulse relay 6, its normally open contacts 11 are closed and a circuit is created to operate the PBX set, so as normally open contacts 11 and choke 12 are connected in parallel to the subscriber set. The subscriber receives the “Station Answer” signal and dials the number of the PBX subscriber.

During dialing the pulse contacts, the dialer periodically interrupts the direct current circuit through the subscriber unit, as a result of which the transmitting impulse relay 7 also periodically releases, opening its normally closed contacts 15 voltage supply circuit to the simplex input

telegraph block 4. The tonal parcels formed in the last arrive at the transmitting unit 2 and further into the communication channel. At the receiving end, the tones are deciphered in the telegraph unit 4, as a result, the receiving impulse relay 6 begins to periodically release in time with the transmitting impulse relay 7, open with its own normally open contacts 11 power supply circuit of the subscriber set PBX. As a result, DC pulses are created, which are necessary for controlling ATC devices when establishing a connection, i.e. the work of normally open contacts 11 is equivalent to the work of the pulse contacts of the dialer of a telephone set, where the choke 12 is the equivalent of a telephone set.

The subscriber of the telephone set - after dialing the number, hears the result of his call: "Control of the call or

“This is sent to it from the automatic telephone exchange 5 through the separation capacitor 13. When the subscriber answers, a duplex radio connection occurs.

The end of the connection is one-way. If a

the subscriber hangs up the telephone set, the power supply circuit of the relay 8 is broken, the normally open contacts 14 of which are open, the voltage supply to the simplex input of the telegraph unit is stopped, the output of unit 9 from the input of the telephone unit 3 is disconnected.

Claims (1)

Invention Formula An interface device of a radio-relay 35 station with an automatic telephone station containing a receiving unit, the first output of which is connected to the first input of the telephone unit, the output of which is connected to the first input of the transmitting unit, the second 40 the input of which is connected to the first output the telegraph unit, the first input of which is connected to the second output of the receiving unit, the connecting line relay unit to which the busy and the disconnecting relays are connected and the transmitting impulse relay, normally open and closed, which are connected via a choke in parallel to the subscriber set of the automatic telephone exchange, which is via a split capacitor connected to a telephone unit, as well as a voltage source, the first output of which is connected to the winding of the receiving impulse relay; lines connected to an automatic telephone station, characterized in that, in order to simplify the process of establishing a connection between a radio relay station and a telephone subscriber, the output of the connecting line relay block is connected to the second input of the telephone unit, the receiving pulse relay is connected to the second output of the telegraph 13362704 The second output of the ng-zan and oh-s source and normally closed connectors are connected in series through the cycles of the transmitting impulse relay and the normally open contacts are connected to the second input of the telegraph unit.