SU58610A1 - The switch device of the central battery system with three-wire cords - Google Patents

Description

In order to release the subscriber line upon receipt of a two-way disconnect (before the telephone operator removes the cords), according to the present invention, a drop relay is connected to the third wire of the cord pair, breaking the chains of the subscriber isolation relays and controlling the counter of the connections made.

In addition, in the proposed scheme, an RV relay is activated, which is triggered by translating the interrogation key, which prepares an inductor call sending circuit to the called subscriber and the tone control circuit of this parcel to the calling subscriber side.

Using cam switches, it is possible to automatically send ringtones and control the latter.

In the attached drawing of FIG. I depicts the proposed corded pair design; FIG. 2 - local and multiple field switch with a linear kit.

The action of the scheme is as follows. When the subscriber calls the station, the linear relay LR and the general call relay OVR (not shown in the diagram) work, and the calling lamp overhead and the general call lamp of the OVL (also not shown in the diagram) are lit.

The PP release relay does not work, as its two windings are wound bifillary.

When the telephonist inserts into the socket of the local floor of the interrogation plug OSH, the isolating relay PP, receiving an additional current on the winding P through the winding of the OPj breaker, triggers and terminates the overhead line. The OP does not work, as it is shunted by the minus obtained through the LR contact and the closed PP contact.

After interrogating the subscriber and the sample for an occupation, the telephone operator inserts the call plug of the VG into the socket of the called subscriber and by pressing the key B sends an inductor call to the subscriber.

With the passage of the inductor current through the winding of the control inductive relay KIR, the latter is working and after it the auxiliary relay BP is working, lighting the control inductor lamp KIL.

When transferring the interrogation key to the call, the relay of the PB call is working and is blocked; with its contacts i, the relay PB switches the line of the called subscriber to the rotary cam switch, which results in the automatic sending of periodic call signals and call control. When inserting the VS, the PR ное breakaway relay is triggered through the P winding of the separating relay PP. After picking up the handset | the LR of the called subscriber operates and the supply of the minus bypasses the OR “. The latter releases and, in turn, feed plus j shunts RVs. The PB relay releases, I, as a result of which the automatic ringing of the ringing signals is discontinued and a talk circuit is created.

After the subscribers hang up the telephone handsets, the OPj and OP. Bounce relays are triggered. RK caller | subscriber; With its contact, this relay j lights the common light bulb i OL and breaks the circuit of the isolating and burglary relays, which therefore are released; However, the OL and OLO light bulbs continue to burn, half plus through the contacts of the RSBR relay. The potential supply to the socket socket is terminated, the pair of nurovs is broken and subscribers are able to call the station again without waiting for the cords to be removed.

Simultaneously with the ignition of the lamps of the J of the OOL kidney, a connected counter connected to it is produced. connections.

If the line of one of the two subscribers engaged in a local call is required for long distance calls. a thief, a telephonist MTS has the ability to force; disconnection, warning the speakers in advance.

To do this, it presses the reset flush key, by means of which a clean plus battery is fed to the body of the socket of the required subscriber and then to one of the ends of the winding of the P Reo relay. which, having triggered, is now blocked by its winding 1. The relay Рсбр by supplying a positive through its contacts to the breaker lamps OL; and OLO provides bilateral rejection and, by breaking one of the cores of the cord pair, breaks the conversational circuit by disconnecting the subscriber from the required line.

Current transmission circuits are not described in the description, since they are dreams from consideration of the circuits.

The subject matter of the invention.

Claims (3)

1. The switchboard device of the central battery system with three wire cords (central bank x 3), characterized in that, in order to release the subscriber line upon receipt of a two-way call (before removing telephone operator cords) and forcibly disconnecting the subscribers during a long-distance call, the cord pair scheme is included a double-winding reset relay, breaking the chains of the subscriber isolation relays and controlling the counter of the connections made. 2. The form of the device according to claim 1, characterized by the use of a relay RW, which, when translating the interrogation key, transfers a call and prepares a circuit for sending an inductive call to the caller and the tone control circuit of this package to the caller. 3.In the device on Mon. 1-2 use rotary cam switches to automatically send periodic ring signals and tone control of a call. FIG. 2  I BP one Uhff iXHfl ij K 7vr / eCfffHOf MnOZOKpf O no al