CN2240213Y - External connecting full-automatic communication linkage - Google Patents

Abstract

The utility model relates to an externally connected full-automatic communication connector which is composed of a communication input line, a communication switching port, a calling triggering circuit, a sampling circuit, a time delay switch off circuit, a voltage reducing and rectifying circuit and a power supply control circuit. The connector can automatically switch on a communication device to enter the communication state by a control relay which is triggered by an initial call signal (ringing). When no signal exists, the connector and the communication device automatically cut off the power supply. As the communication signals of the communication device use series resonance sampling and are completely isolated from a communication network, the communication network can not be disturbed. The connector with the characteristics of safe reliability, convenience, energy saving, long service life, etc., is suitable for communication devices, such as facsimile machines, recording telephones, communication modulators, etc.

Description

Circumscribed full-automatic communication connector

The utility model belongs to the connector of communicator

Present some automatic communication devices that at home and abroad use such as telephone answering set, recorder phone, communication modulator, demodulator, facsimile machine, communication PC, unit automatic exchange, be long-time energized, this type of device is that signal is surveyed in charged inspection simultaneously, cause the automatic communication device energy consumption to increase, shorten useful life, the failure rate height.Though adopted automatic energy-saving device on some automatic communication device at present, under call signal triggers, make the automatic energized of communicator reaching the automated communications purpose, but this automatic energy-saving device, owing to self be in long charged detection signal of communication state, energy consumption increases, and the use electric timing switch has limited call duration time, uses very inconvenient, in order to overcome this defective, the utility model has designed a kind of Circumscribed full-automatic communication connector.

The utility model purpose is, the Circumscribed full-automatic communication connector of design utilizes and calls out power supply and the communication input port that (ring) signal provides energy and makes relay connection communicator by circuits for triggering first.Connect mains supply simultaneously and provide power supply for connector, communicator enters communications status.Connector and communicator do not have power consumption when the communicator no signal, and safe and reliable, failure rate is low, long service life.

Referring to accompanying drawing

Fig. 1 is the utility model electrical block diagram

Fig. 2 is the utility model circuit theory diagrams

Circumscribed full-automatic communication connector described in the utility model, it is defeated by communication Lambda line (1), transition of communications mouth (2), call trigger circuit (3), sample circuit (4) prolongs The time shutdown circuit (5), step-down rectifying circuit (6), power control circuit (7) forms; Communication Conversion mouthful (2) is by normally-closed contact J_1-1、J _1-2Be connected with call trigger circuit (3); Civil power Through transformer B₂Buck diode D₆—D ₉Commutation capacitor C₁₀Filtering provides power supply, transformer B for transition of communications mouth (2), time-delay shutdown circuit (5), call trigger circuit (3), sample circuit (4)₂The power line of cross-over connection communicator on the primary coil is at transformer B₂Be connected in series J on primary coil and the city's electric connection line₁Normally opened contact J_1-3、J _1-4, the output serial connection relay J of time-delay shutdown circuit (5)₂, relay J₂Normally-closed contact J_2-1Be serially connected in relay J₁On the branch road; Call trigger circuit (3) is by transformer B₁, resistance R₂、R ₃、 R ₄、R ₅、R ₆, capacitor C₃、C ₄、C ₅, triode BG₁Form, by diode D₁₀Be connected with transition of communications mouth (2), sample circuit (4) is by diode D₅, capacitor C₆Form diode D₅With the capacitor C in the call trigger circuit (3)₄Connect; Time-delay shutdown circuit (5) By resistance R₇、R ₈、R ₉、R ₁₀, capacitor C₇、C ₈、C ₉, triode BG₂、BG ₃, relay J₂, 555 integrated packages form, and 555 integrated package pins (8), (4) connect positive supply, and (1) connects negative supply, R₇、R ₉、BG ₂、C ₇, 555 integrated packages (2) ends forms input circuit, (3) end is output, R₈、R ₁₀、BG ₃、C ₈, 555 integrated packages (6) form delay circuit, (5) end passes through G₉Be connected with negative supply.

Further describe and provide embodiment below in conjunction with accompanying drawing

Circumscribed full-automatic communication connector described in the utility model, in use, when call signal (bell signal first), after the calling, signal is through normally-closed contact J _1-1, J _1-2Input is again through C ₁Step-down, diode D ₁-D ₄Rectification, capacitor C ₂Filtering obtains direct voltage, voltage-stabiliser tube DW conducting, and controllable silicon T obtains the conducting of forward trigger voltage, relay J because of the control utmost point ₁Must be electric, J _1-1, J _1-2Normally-closed contact disconnects, J _1-3, J _1-4The normally opened contact closure is connected mains supply, and mains supply is through transformer B ₂Step-down, diode D ₆, D ₇, D ₈, D ₉Rectification, capacitor C ₁₀Stable dc power supply is exhaled, is cried circuits for triggering, sample circuit, time-delay shutdown circuit for the transition of communications mouth power supply is provided after the filtering, call signal (ring) through resonance at transformer B ₁Obtain certain strength signal on the secondary coil, this signal is through triode BG ₁Amplify, after the sample circuit sampling, triode BG ₂, BG ₃Triggering and conducting.555 integrated packages (2) in the time-delay shutdown circuit are low level, and output (3) is a high level, relay J ₂Must not be electric, J ₁Because of transformer B ₂Power supply J is provided ₁Retainer belt electricity condition still, connector enters communications status.After signal of communication disappears, diode D ₅Triode BG ₂, BG ₃By 555 integrated packages (6) foot meridian capacitor C ₈The charging time-delay is after 2 minutes, and 555 integrated packages (2) end is high level, and output (3) is a low level, relay J ₂Must be electric, J _2-1Normally-closed contact disconnects, J ₁Outage, J _1-4, J _1-3Disconnect J _1-1, J _1-2Recover normally off and wait for calling next time.

Claims (4)

1, a kind of Circumscribed full-automatic communication connector, it is characterized in that, it is by communication incoming line (1), transition of communications mouth (2), call trigger circuit (3), sample circuit (4), time-delay shutdown circuit (5), step-down rectifying circuit (6), power control circuit (7) is formed, and transition of communications mouth (2) is by normally-closed contact J _1-1, J _1-2Be connected with call trigger circuit (3), civil power is through transformer B ₂Buck diode D ₆-D ₉Commutation capacitor C ₁₀Filtering provides power supply, transformer B for transition of communications mouth (2), time-delay shutdown circuit (5), call trigger circuit (3), sample circuit (4) ₂Primary coil cross-over connection communicator power line is at transformer B ₂Be connected in series J on primary coil and the city's electric connection line ₁Normally opened contact J _1-3, J _1-4The output serial connection relay J of time-delay shutdown circuit ₂, relay J ₂Normally-closed contact J _2-1Be serially connected in relay J ₁On the branch road.

2, Circumscribed full-automatic communication connector according to claim 1 is characterized in that, call trigger circuit (3) is by transformer B ₁, resistance R ₂, R ₃, R ₄, R ₅, R ₆, capacitor C ₃, C ₄, C ₅, triode BG ₁Form, by diode D ₁₀Be connected with transition of communications mouth (2).

3, Circumscribed full-automatic communication connector according to claim 1 is characterized in that, sample circuit (4) is by diode D ₅, capacitor C ₆Form diode D ₅With the capacitor C in the call trigger circuit (3) ₄Connect.

4, Circumscribed full-automatic communication connector according to claim 1 is characterized in that, time-delay shutdown circuit (5) is by resistance R ₇, R ₈, R ₉, R ₁₀, capacitor C ₇, C ₈, C ₉, triode BG ₂, BG ₃, relay J ₂, 555 integrated packages are formed, and 555 integrated package pins (8), (4) connect positive supply, and (1) connects negative supply, R ₇, R ₉, BG ₂, C ₇, 555 integrated packages (2) ends forms input circuit, (3) end is output, R ₈, R ₁₀, BG ₃, C ₈, 555 integrated packages (6) form delay circuit, (5) end passes through G ₉Be connected with negative supply.

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