SU64332A1 - The device of the outgoing (or incoming) connecting line between the manual telephone exchange of the central battery system with two wired cords (TSBH2) and switchboard installations - Google Patents

Description

In the applied connection lines between the switchboard installations and the CTA of the CCPX2 system, when connecting, the switchboard installations through the CTA or directly, there is no signaling of the end of the call and electrical energy is unnecessarily spent when the burglar lamps are lit during the call.

The proposed device of incoming and outgoing connecting lines eliminates these drawbacks and ensures the normal operation of both the CTA and the switchboard installations with the inter-switch connections.

In order to signal the end of a call, in the proposed device, an auxiliary relay is applied to the outgoing (or incoming) connecting line, operating through the subscriber unit of the switchboard installation and triggering the burglar alarm at the city station and switchboarding unit.

The invention is illustrated in the drawing, which shows the electrical circuit of the proposed device.

The input connection kit has five relays:

1) Relay P-1 AC - works when receiving a call from the urban telephone network (urban telephone exchange),

2) relay R-2 - slow on release-triggered when relay R-1 is working,

3) Relay P 3 - auxiliary relay - works when inserting the interrogation plug on the GTS,

4) Relay R-4 - subscriber dual coil relay - works through. one wire a and the subscriber unit of the switchboard installation, gaining, through the PR (breaker relay) cord string on the switchgear unit (switchboard installation),

5) The relay RK serves simultaneously as a reactive coil to prevent the current from turning off, and also includes

through the contact of relay R-4 to the switchboard installation.

The outgoing connection kit has three relays:

1) Relay P-1 works when a telephone operator inserts a call plug into the outgoing line jack,

2) relay Р-2 - subscriber, two-coil,

3) the relay RK serves simultaneously as a reactive coil, and also connects the minus from the contact of the relay R-2 to the wire b of the switchboard installation.

The sets of outgoing and incoming connecting lines are located on the CTA. In addition, in the case of the presence of a multiple field, the outgoing connecting line has an occupancy blender.

The operation of the circuit is considered for the following three cases:

I. Call the switchboard subscriber

installation subscriber GTS (entrance sch

GTS connecting line)

The subscriber of the switchboard installation removes the microphone from the lever. On the switch, the linear relay LR is activated and the overhead line lamp lights up. The telephonist inserts the interrogation plug OSH into the socket of the subscriber and interrogates it. Having learned that the city station is required, the telephonist inserts the ringing pin VS into the socket of the connecting line entering the CTA and sends the inductor call-out current to the CTA. Alternating current goes along the circuit (1): VS head, short spring of the socket of the incoming connecting line, wire a, capacitor C ,, rest contact of relay R-3, winding of inductor relay R-1, wire b, capacitor C, long spring of the socket , housing VS. The relay R-1 is working and closing the circuit (2): plus, the working contact of the relay R-1, the winding of the relay R-2, the contact of rest R-3, minus. Relay P-2, having triggered, is blocked through its contact b and closes with contact with the circuit (3): minus, contact a relay P-2, calling out the overhead line lamp, OVR (general call relay) bus, plus. On the GTS switch

The calling lamp on this input line lights up. The telephone operator of the GTS inserts the interrogation plug OSH into the socket of this line. Relay Р-3 works according to the chain (4): plus, OK- 100 ohm, third spring 3 sockets, relay winding Р-3, minus. Relay R-3 is activated and breaks the circuit of relay R-1 and relay R-2. Extinguished overhead. Contact A of relay R-3 closes the circuit (5): minus, contact a of relay R-3, both windings of relay R-4, wire and connecting line, a short spring of the socket at the outgoing end (switchboard), head VS cord pair, head ОШ, short spring of the subscriber line socket KU, subscriber unit, second wire of the line, long spring of the socket, case of the test plug, winding of the breaker relay OR-1 cord pair, plus. Relay R-4 is triggered (the breaker relay OP-1 of the wired pair worked when the OSH was inserted in the switch installation) and closes the circuit (6): minus, relay R-4, relay RK, resistance R in 400 ohm, long spring 2 sockets common connecting line on the GTS, the case of the questionnaire, the winding of the OP-1 breaker and plus. Relay RK triggers and closes the circuit (7) :: minus, relay contact R-4, winding: relay RK, relay contact RK, wire b, long spring of the SL socket of the switchboard installation, call box body, winding of the OP-2 breaker relay, plus . In this circuit, relay OP-2 is triggered and by its contact breaks the OL-2 breaker circuit. This signals the response of the GTS telephonist to the call.

The operator of the GTS polls the operator of the switchboard installation.

If a GTS subscriber is called, the telephone operator inserts the HS into the corresponding slot of the multiple field and calls the desired subscriber. After the end of the conversation, if the GTS subscriber hangs up first, the breaker relay circuit will break apart, as in a normal connection. On the switch installation after that

As the subscriber of the installation hangs up, both the OL-1 and OL-2 fire dumps light up.

p. Calling a subscriber from a subscriber station

switchboard installation (outgoing

line)

If the GTS subscriber requires a switch installation, the telephone operator inserts the call plug into the outgoing trunk socket. Relay Р-1 works according to the circuit (1): plus, OK - 100 Ω resistivity, frame housing, spring 3 sockets, relay winding Р-1, minus. Relay R-1, triggered by contact a, turns on the BLZan occupancy blender across the entire multiple field, contact b turns on plus for the operation of the LR linear relay switchboard installation along the circuit (2): plus, rest relay contact RK, wire b of the connecting line, spring springs switch installation, winding of the linear relay of the Republic of Latvia, mine, c. The linear relay, having operated, closes the circuit (3) of the calling line: minus, contact LR, calling lamp VL, plus. The telephone operator inserts the interrogation plug into the socket of this connecting line and interrogates the subscriber of the GTS (city telephone exchange). When the plug is inserted, the overhead line goes out, as the LR relay circuit is cut off. Having learned the required number, the telephone operator inserts the call plug into the socket of the required subscriber and sends the call. When the subscriber removes pipe 1, the relay R-2 is triggered by the chain (4): minus, relay R-2, wire and connecting line, short spring of the connecting line on the switchboard installation, OSH head, VSh head, short subscriber's socket spring of the switchboard installation, subscriber line, apparatus, socket spring length, VS body, HS-2 winding, plus OP-2 winding. Consequently, simultaneously with the double-winding relay P-2, the crash relay OP-2 also works on the switchboard installation. The flashlight OL-2 goes off. Almost simultaneously with it, the OL-2 lamp on the GTS and OL-1 on the switchgear unit goes off. Circuit (5) of the OP-2 breakaway relay on the GTS is as follows: minus, the working contact of the relay R-2, relay coil RK, resistance 400 ohms, the length of the spring of the connecting line socket, VS body plug, the relay coil OP-2 cord pair and a plus. Relay OP-2 breaks the lamp circuit OL-2.

The schematic diagram of the cord pair CB X 2 in the drawing is not shown.

At the same time when the relay RK is activated, its contacts 3-4 are closed and contacts 1-2 are broken. The wire b now receives a minus through the circuit (6): minus, working contact of relay R-2, winding of relay RK, working contact 3 - 4, wire b of connecting line, socket spring on switchboard installation, plug housing OSH, winding of burglar relay OP-1 n plus. The relay OP-1 operates and breaks the circuit OL-1. OL-1 goes out. Thus, it is obvious that since the moment when the tube was removed by the switchboard subscriber, both the bouncing lamps on the cord pair of the installation are extinguished, and the OL-2 lamp bounces on the CTA.

At the end of a call, hang up occurs in a similar way as with a normal connection between two subscribers. When the GTS subscriber hangs up, the OP-1 circuit will break and the OL-1 lamp will turn on. When the subscriber of the switchboard installation hangs up, the relay circuit R-2 and the fire lamp both breaker lamps OL-1 and OL-2 on the switchboard and the lamp OL-2 on the GTS will break. The telephone operator of the GTS sees the call off and disconnects the subscribers. At the same time, the telephony operator of the switchboard installation disconnects and releases the line, since she also received a call termination signal.

Iii. Connection of subscribers of two switch installations through GTS

(Outgoing and incoming connecting lines)

The operation of the circuits when connecting one; switch installation with the other occurs as described.

unilateral connection cases.

The end call is as follows: when the subscriber of one of the switchboard installations hangs up, both the bouncy lamps on the switchboard turn on and the lamp bounces on the CTA; the same will happen when the subscriber of another switch installation hangs up.

Subject invention

The device of the outgoing (or incoming) connecting line between the manual telephone exchange of the central battery system with two-wire cords (TSBH2). and switchboard installations, characterized in that, in order to signal the end of the conversation, an auxiliary relay P-2 is inserted into the outgoing connecting line (or P-4 into the incoming connecting line), operating through the subscriber unit of the switchboard installation and performing when released breakage alarm on the city station and switchboard installation.

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