SU36484A1 - Interconnect device for telephone substations with central battery - Google Patents

Description

The existing connecting devices for telephone substations with a central battery with the use of two-way cords and relays with signal lamps in the cord connecting pairs do not provide the possibility of feed-through disconnection.

The present invention relates to such devices and aims to eliminate this drawback and, moreover, simplifies the circuit, as it requires a smaller number of relays compared to existing circuits.

For the implementation of the invention, relays are used, which, when the microtelephone tube is hung by the subscriber, turn on the signal lamp and simultaneously open the relay in the substation circuit.

The operation of the device illustrated in the drawing is as follows: when station B is called by station A, which is produced in the usual way by an inductor, relay 1 is activated at the substation l and the warning lamp 2 lights up; when plug 3 is inserted, relays 4 and 5, installed at substation A, are triggered. At that, relay i releases measles and the call-out lamp 2 goes out; at the same time, relay 6 is triggered at substation B and extinguishes the baffle lamp 7.

(345)

When inserted into the socket of the called subscriber of substation A, lamp 8 will not go out until the subscriber answers. In the existing schemes, two signal burglar lamps are burning, which is misleading at the end.

When the microtelephone tube is removed from the device of the called subscriber at station A, relays 9, 10 and 11 are emitted and the lamp 8 goes out. The relay operates as follows. Relay 4-current flows from the battery through terminal 13 to the relay coil 4 and to minus batteries; relay 5 and 6-circuit goes: battery minus, contact 14 of relay 2, contact 15 of relay 10, relay 5 winding, line, station B spring socket 16, pin 17 head, relay 6 winding, transformer winding and battery plus; relay 9 and 11-circuit goes: Qaiap & minzS, contact 18, relay 9 winding, subscriber's spring 19, subscriber's line, line, unit; 1t, second wire, spring 20, plug body 21, winding of relay 11, plus batteries; relay 10 - at the first moment the circuit goes from the battery minus through the winding of the transformer of station B, through the contact 22 of the relay 9, the winding of the relay 10 to the battery plus; relay 10 will operate and the blocking circuit through pin 23; Relay 25-circuit goes from the battery minuga, through pin 28

relay 5, winding 27, spring 20 sockets, body plug 3, the winding of the relay 25 to the plus.

At the end of the conversation subscriber station A broadcasts the handset; at the same time at station A they release the measles of relays 5, 9, 11 and 25 and the fire lamps are fenders 8 and 28. At station B, release the measles of relay 6 and the fighter lights up 7. When “removing the cord of station L, relays 4 and 10 let go of measles.

When calling station B, the following happens: after polling station A subscriber, relays 4, 9, and 10 and employment blender 29 will work. If you press button A of group A or B on station A, relay 5 and 11 will work and lamp 8 will go out, and at station B group gel, according to the button pressed on station A, and the lamva lights up ;; 8. When the plug is inserted at station B, relays 6 and 30 will work, the group relay will release the measles and lamp 28 will go out; at the end of the conversation the station subscriber hangs a micro

background tube; at the same time, at station A they release measles relays 5, 9 11 and 25 and the fire lamps bounce lamps 8 and 28. At the same time, station B will release the relay and the lamp 7. The occupancy lamp 29 will return to rest only after the cords are completely disconnected at stations J. and S.

The subject matter of the invention.

The device of connecting lines for telephone substations with a central battery using two-wire cords and relays with signal lamps in cord connecting pairs, characterized by the use of a station A line relay connector 9 with contacts 22 and a relay 10 with contact 15, which relays when hanging a telephone handset (5ent station A, assigned to open the circuit of the relay 6 station B with the simultaneous ignition of the signal lamp 7 to supply end-to-end disconnection.