CN2307320Y - Wireless password alarm for group joint defense - Google Patents

Abstract

A radio cipher alarm for group joint defence is composed of detecting and coding transmitter, transceiver, receiving terminal and miniature coding transmitter, and features that the radio communication between cipher modules is used to transmit the alarm signals, so preventing the alarm from being triggered by telephone network and automatic paging station.

Description

One kind of groups joint defence wireless cipher alarm

The utility model belongs to the alarm field, is specifically related to a kind of groups joint defence wireless cipher alarm.

At present, the burglar alarm of remote-wireless alarm for generally utilizing the communication telephones net to carry out automatic paging, the disclosed CN2178371Y of Patent Office of the People's Republic of China number patent, name is called " paging system of reporting to the police automatically ".The advantage of this patent is that terminal can move, the user needn't be other on duty at telephone set: shortcoming is that the user must have beeper, and alert only transmits to terminal of beeper, be not easy to joint defence, alert transmits and influenced by external condition, the line is busy and subscriber's telephone line is cut etc. as the automatic paging platform, and alert reaches terminal and also will remove time with paging centers's dialogue simultaneously, makes time of fire alarming long slightly and install loaded down with trivial details.

The purpose of this utility model provides and a kind ofly reports to the police rapidly, is convenient to joint defence, installs easily and alert transmits and is not afraid of colony's joint defence wireless cipher alarm that the line is busy.

Colony of the present utility model joint defence wireless cipher alarm comprises: survey coded transmitter 1, transmitting-receiving main frame 2, receiving terminal machine 3, miniature coded transmitter 4. is surveyed coded transmitter 1 is transmitted to the alert signal that detects transmitting-receiving main frame 2 by password emitting antenna L1 password receiving antenna L2, miniature coded transmitter 4 is to prepare or the releasing warning by the duty that password emitting antenna L5 sets transmitting-receiving main frame 2, transmitting-receiving main frame 2 is handled alarming horn DL that password receiving antenna L4 that the password emitting antenna L3 of back by transmitting-receiving main frame 2 be transmitted to receiving terminal machine 3 receives and dispatches main frame 2 simultaneously with the signal of receiving and is sent sound greater than 120db, receiving terminal machine 3 carries out the signal of receiving after the decoding processing to carry out sound and light alarm by the acousto-optic warning unit of receiving terminal machine 3, miniature coded transmitter 4 carries out audible alarm simultaneously, wherein, the transmitting-receiving main frame receives decoding circuit 2-1 by short-range wireless, AND circuit 2-2, power supply 2-3, or control circuit 2-4, delay circuit 2-5, control circuit 2-6, code switch 2-7, long distance wireless coded transmitter 2-8 and voice guard DL form, short-range wireless receive decoding circuit 2-1 respectively with AND circuit 2-2 and or control circuit 2-4 connect, AND circuit is through control circuit 2-6, code switch 2-7 and the long distance wireless coding unit 2-8 that transmits connects, or control circuit 2-4 connects with the input end of control circuit 2-6 through delay circuit 2-5, output terminal at control circuit has voice guard DL, and power supply 2-3 is respectively each unit direct current is provided; The receiving terminal machine is by power supply 3-1, long-range reception decoding circuit 3-2, secondary decoding unit 3-3, display unit 3-4, OR circuit 3-5, voice guard FM form, long-range reception decoding circuit 3-2 connects with secondary decoding unit 3-3, OR circuit 3-5 respectively, secondary decoding unit 3-3 connects with display unit 3-4, cross-over connection voice guard FM between display unit 3-4 and OR circuit 3-5, power supply 3-1 provides direct current for each unit.

The following advantage of the utility model tool type:

1. it has overcome the automatic paging warning system and need have a style of one's own by means of the shortcoming of telephone network, automatic paging platform etc., not limited by external condition, is not afraid of that the line is busy, is not afraid of to cut telephone wire, has improved warning efficient;

2. report to the police rapidly, because it does not need dialing and with paging centers's dialogue, terminating machine hummer and display show that alert almost takes place simultaneously with alert;

3. Installation and Debugging are easy, because it does not need to dial beeper or telephone number, as long as user and alert holder terminal are remembered the main frame number of oneself.Long-range encoding and decoding address is pressed the toggle switch setting by the shop-assistant according to microcommunity quantity (microcommunity is generally in 15 families) and is got final product when buying;

4. be convenient to joint defence, because it is expensive that a terminal does not resemble the beeper, Any user can be bought one, and the terminal in any one colony can both be received the alert that any one main frame in the colony is sent simultaneously as long as (be made as 3KM) in the coverage scope, this colony can be the people of an office, can be a few neighbours of family, also can be the people of several families kinship in coverage, as long as they have bought the wireless cipher alarm of forming colony jointly.

Embodiment of the present utility model is referring to following each figure

Fig. 1 is a kind of groups joint defence wireless cipher warning system block diagram

Fig. 2 is colony's joint defence wireless cipher warning system transmitting-receiving main frame 2, receiving terminal machine 3 circuit theory diagrams

Fig. 3 surveys the outside drawing of coded transmitter

Fig. 4 receives and dispatches the outside drawing of main frame

The outside drawing of Fig. 5 receiving terminal machine

The outside drawing of the miniature coded transmitter of Fig. 6

Among the figure:

1---surveying coded transmitter 2---transmitting-receiving main frame

The miniature coded transmitter of 3---receiving terminal machines 4---

2-1---short-range wireless receives decoding circuit 2-2---AND circuit

2-3,3-1---power supply 2-4---or control circuit

2-5---delay circuit 2-6---control circuit

2-7---code switch 2-8---long distance wireless encoding transmitting circuit

The long-range reception decoding circuit of DL---electronic horn alarm 3-2---

3-3---secondary decoding unit 3-4---display unit

3-5---OR circuit FM---buzzer siren

IC4---short-range wireless receives decoding circuit IC5---is with door

IC13---delay circuit L1, L2, L3, L4, L5---antenna

IC7---cipher remote control emitting module, IC8---cipher remote control receiving unit

IC9---secondary decode component R3, R4, R5, R6～R18, R19-resistance

WY---three terminal regulator J1, J2, J3, J4---relay

BG1, BG2, BG3---triode D---diode

DY1, DY2---filter rectification power supply E1, E2---direct supply

R1, R2---resistance KA-D---toggle switch

LED1, LED2～LED14, LED15-light emitting diode

IC6, IC10, IC11, IC12-or door BG4---triode

A3---close by disconnecting

Potentiometer is adjusted in time-delay to 5---surveying delay unit 6---

7---power supply transmitter unit 8---power switch

9---power lead 10---warning system main frame

11---warning electronic horn DL 12---host power supply line

13---main frame short range receiving antenna L2 14---long-range emitting antenna L3 of main frame

15---alarm terminal machine 16---terminal power lead

17---the long-range receiving antenna L4 of receiving terminal machine

18---receiving terminal machine warning number shows LED light

Resident family's numbering of the corresponding pilot lamp representative of 19---recover peace and turn round 20---

21---key chain 22---micro radio coded transmitter

23---the alarm settings peace turns round 24---alarm release knob

25---the emission pilot lamp

As shown in Figure 2, transmitting-receiving main frame 2 by short-range wireless receive cryptogram decoding IC circuit 4, with a door IC5, prolong The time IC circuit 13 or door IC6, three terminal regulator WY, relay J 1, J2, J3, triode BG1, BG2, BG3, diode D, filter rectification power supply DY1, dc source E1, resistance R 1, R2, toggle switch KA-D, cipher remote control emitting module IC7 form, wherein, the A of short-range wireless password receipt decoding IC circuit 4, C holds and connects with two inputs of door IC5, and the IC4 anode is through relay normally closed contact J1-1 and three-terminal voltage-stabilizing 2 ends of device connect, the negative terminal connecting to neutral current potential of IC4, and the main coil of relay J 1 is connected across 2 of three terminal regulator Between the colelctor electrode of end and triode BG3, the emitter stage connecting to neutral current potential of triode BG3, the base of triode BG3 The utmost point through resistance R 2 with or the output of door IC6 connects, with the output one tunnel of door IC5 through delay circuit IC13 and Or the input of door IC6 connects, the B end of IC4 with or another input of an IC6 connect, with door IC5's Another road output connects through the base stage of resistance R 1 with triode BG1, and the colelctor electrode of triode BG1 is through diode D Connect 1 end of three terminal regulator WY with the anode of power supply and the end of relay normally closed contact J2-1 respectively Connect with the other end of the normally closed contact J2-1 of relay J 2, the 3rd termination zero potential of three terminal regulator WY, The emitter stage of triode BG1 connects with the base stage of triode BG2 and forms secondary amplification, the current collection of triode BG1 The colelctor electrode short circuit of the utmost point and triode BG2, the emitter stage connecting to neutral current potential of triode BG2, the main line of relay J 2 Circle is connected across between the colelctor electrode of positive supply and triode BG2 the input of toggle switch KA-D and alarm After the DL parallel connection, an end connects with positive potential through the normal opened contact J2-2 of relay J 2, and a termination zero potential is dialled The output of code switch connects the negative terminal of IC7 with A, B, C, D four ends of cipher remote control emitting module IC7 The connecting to neutral current potential, the outlet cross-over connection relay main coil J3 of conventional rectification filtering power, anode is often opened contact J3-1, normally closed contact J3-2 connect with the positive pole of dc standby power E1, negative terminal and dc standby power Negative pole connects, and provides for the transmitting-receiving main frame from drawing a signal between normal opened contact J3-1 and the normally closed contact J3-2 Power supply.

Receiving terminal machine 3 is by cipher remote control receiving unit IC8, secondary decode component IC9, electricity as shown in Figure 2 Resistance R3, R4, R5～R19, LED 1～LED15 or door IC10, IC11, IC12, three Utmost point pipe BG4, alarm FM, filter rectification power supply DY2, close A3, relay J 4, dc source by disconnecting E2 forms, and wherein, cipher remote control assembly IC8 passes through four output terminals A, B, C, D one with the signal that receives The road connects with the input of secondary decode component IC9, another road with or the door IC10, IC11 two inputs Connect, the output of IC10 and IC11 with or the input of an IC12 connect, the output of IC12 is through resistance R 4 Connect the emitter stage connecting to neutral current potential of BG4, the colelctor electrode of BG4 device FM's taking alarm with the base stage of triode BG4 One end, another termination positive supply of alarm FM, the anode of IC8 connects positive supply through closing A3 by disconnection, IC8's Negative terminal connecting to neutral current potential, the 6 termination zero potentials of IC9, the output 8,7,6,5,4,3,2,23 of IC9, 22,21,20,19,18,17,16 respectively through resistance R 5～R19, LED1～LED15 connecting to neutral current potential, The outlet cross-over connection relay main coil J4 of conventional rectification filtering power, anode is often opened contact J4-1, normally closed Contact J4-2 connects with the positive pole of dc standby power E2, and negative terminal connects with the negative pole of dc standby power, from Draw a signal between normal opened contact J4-1 and the normally closed contact J4-2 and provide power supply for the receiving terminal machine.

Below in conjunction with accompanying drawing embodiment of the present utility model is described further:

1. surveying coded transmitter is conventional wireless cipher emitting module, by probe portion, coded portion, radiating portion is formed, its power supply is to use capacitance partial pressure, bridge rectifier, the filtering of electric capacity colour coding inductance π type obtains the 12V DC voltage, standby direct supply uses the A23 battery, because the detector kind is many, as vibration probe, infrared probe, magnetic switch, the radar probe, the coal gas probe, radar dobla probe etc., match according to customer requirements, just they all become two contacts to the signal that detects, and pass through coded portion, radiating portion becomes the push button signalling of micro radio coded transmitter.Disconnect during no alert, when being arranged, connects automatically alert, this controls IC2 coded transmitter emission corresponding data in this unit through delay circuit after to contacting and receives coded pulse of C end of decoding circuit IC4 for short-range wireless in the transmitting-receiving main frame, scrambler among the IC1, the scrambler among the IC2 reach the demoder among the IC4 that matches mutually with it, its address code is identical, to guarantee that IC4 can receive the signal that IC1 and IC2 send; The alert signal will be surveyed coded transmitter connection back and send more than 300 million coding high-frequency pulse signal to transmitting-receiving main frame 2.

2. IC4 is and surveys the supporting password wireless receiving assembly of scrambler in coded transmitter 1, the miniature coded transmitter 4 in the transmitting-receiving main frame, what the transmitting-receiving main frame will be received holds an input end that outputs to AND circuit IC5 from the signal of surveying coded transmitter 1 by the C that the short-range wireless password receives decoding circuit IC4, the A end of IC4 is the alarm settings signal end, when existing simultaneously, two signals then output is arranged with door IC5, control on the one hand code switch, coded high-frequency signals is to receiving terminal machine 3 emissions that are positioned at 2km according to the different pieces of information sign indicating number of 1-15 and in far editing and releasing.On the other hand with door output also through by the time-delay that needs the time of fire alarming decision, enter or gate control circuit, nearly receipts are separated power supply switch on to remove original signal, finish reset function.Or the signal separated from nearly receipts of input is the B key signals that is used to remove setting in the control, and the signal of control also enters the voice guard circuit, makes its alarming horn send alerting signal greater than 120db.IC4 has one to receive the flexible circuit conductor antenna, being one amplifies by containing high frequency, detection, amplitude limit amplifies, shaping, the integrated package of decoding output, its decoding circuit and 1, coding circuit in 4 is matching used, coding circuit and decoding circuit all have 13 bit address sign indicating numbers, add the extended address position of 13 built-in address code BA0-BA12 and 2 high-impedance states, each address bit connects noble potential, electronegative potential and unsettled three kinds of states, therefore i.e. 320,000 address bits of 3 28 powers can be provided, each user only accounts for an address bit and gets final product, therefore subscriber-coded repetition possibility is very little, scrambler has four A that connect high level by knob, B, C, four data terminals of D, corresponding reception decoding circuit also has A, B, C, four corresponding output end of D, promptly, then separate A output high level as compiling the A input high level.In native system: compile A, separate A as setting signal.AND circuit IC5 sets A, detection C to export high level when effective simultaneously, trigger on the one hand with the delay circuit of 555 integrated packages composition or with the delay circuit that capacitance-resistance and triode hinder and enter or door IC6, disconnect by BG3 control J1-1 again, the IC4 power supply is finished zero clearing or is resetted, and the B signal of remove setting directly enters without time-delay or door carries out IC4 and resets.Also make BG1, BG2 task driven J2-1 with the output of door IC5, make direct supply drive DL electronic horn voice guard on the one hand and send alerting signal greater than the 120db sound level through J2-2 through R1.Supply direct supply for simultaneously four toggle switch A, B of IC7 long distance wireless password transmitter, one group of fixed contact of C, D.The A of the armature contact of dial switch and IC7 scrambler, B, four switches of C, D are represented 1,2,4,8 digital processing respectively, export as needs the 10th passage, KB, KD are on position, as long as J2-2 one connects, IC7 promptly sends the coding high-frequency impulse by 10 channel datas, and different with IC1, IC2 is the transmitter that coded pulse modulating audio frequency, power amplifier are formed.The various combination of A, B, C, D can be formed 1～15 passage (0 passage need not) in the toggle switch, and power supply is made up of greater than the storage battery of 2.5An alternating current-direct current transform, filtering, voltage stabilizing.The effect of J3-1 is that host power supply is supplied with by electric main when having made alternating current, is not powered by storage battery E1 when having electricity.

3. terminating machine is made up of six parts, 3-2 is the cipher remote control receiving unit IC8 in the remote password wireless receiving and dispatching external member of using with the IC7 pairing of receiving and dispatching in the main frame, after its antenna receives that any coding transmits in 15 passages that IC7 sends, put by height and to put frequency conversion, frequency discrimination shaping, decoding back in frequency-selecting, the secondary by the corresponding data of encoding of KA-D in four data terminals output and 2 of demoder.The address code of IC7, IC8 scrambler is identical for a colony, and different user is to the requirement difference of colony's quantity when selling in order to make, and the address code of IC7, IC8 codec can be kept off toggle switchs with 83.3-3 mainly is made of IC9, it is a secondary decoding circuit of forming with single 16 path analoging switch integrated circuit CC4067, its 10,11,14,13 pin are connected with demoder output terminals A, B, C, D end among the IC8 respectively, CC4067 forbids holding 15 pin INH to connect low level " 0 ", so input end in/out (9～2; 23～16 pin) can select to connect by A, B, C, D with common port out/in (1 pin).On business be total to the termination high level, so according to A, B, C, D number 9～2; The exportable high level of 23～16 ends.If A, B, C, D sign indicating number are 0101, then 22 pin and common port high level are connected.8～2; 23～16 pin join by resistance and LED1-LED15 pilot lamp respectively, coding of each pilot lamp number respective hosts KA-D, and the microcommunity main frame has 15 codings, and demoder IC8 in the large group and secondary decoding IC9 and corresponding pilot lamp thereof are multiplied.R5～R19 is the pilot lamp current-limiting resistance.IC10, IC11, IC12 are four or two input ends or door integrated circuit, and its output can both make BG4 drive hummer FM by R4 and send chimes of doom, and power circuit is identical with the power supply of transmitting-receiving main frame, and just power can be smaller, and is just enough about 1W.

4. miniature coded transmitter, identical with the radiating portion of surveying coded transmitter, just it has used A1 and two data terminals of A2, and power supply A23 battery, A1 knob are as the main frame alarm settings, and the A2 knob is as removing the setting of reporting to the police.Miniature coded transmitter, its effect is carried out the alarm settings signal according to the emission of A end knob to transmitting-receiving main frame 2, warning only could take place in this signal when setting and have detectable signal all to exist simultaneously, remove to set be with push in the miniature coding transceiver 4 the B knob make in the receiving terminal machine 3 near receive separate output B signal by or control, corresponding a-signal is resetted, or cry zero clearing, promptly remove and set.The user more for population and hope reduces cost, miniature coding transceiver can not wanted, only be arranged on the detection transmitter unit on the door, in surveying coded transmitter, seal in a delay circuit between detectable signal and the control push switch contact, make the householder open the door turn off survey power supply before alerting signal can not send, and for the invador who does not have key, the time of opening the door is longer, promptly reports to the police after opening the door.

Colony's joint defence wireless cipher warning system working condition is as follows:

Detection coded transmitter as shown in Figure 3, each user can select one or several, required form and kind, is installed in door, window or other critical position and plugs in; Transmitting-receiving main frame as shown in Figure 4 is installed in the shelter and plugs in, the householder go out to work before with last as shown in Figure 5 the receiving terminal machine and miniature coding transceiver as shown in Figure 6, press the knob A1 of miniature coding transceiver after going out, make whole warning system be in the alarm settings state, after the working, for saving the direct current reserve battery, the AC power of receiving terminal machine is plugged civil power.During setting, invade if any the robber, spy is penetrated coded transmitter the alert that detects is offered the transmitting-receiving main frame with wireless cipher immediately, the main frame transmitting-receiving makes each receiving terminal machine emission of far editing and releasing in colony contain the alert signal of this alert address by the main frame number again, each terminating machine holder sees the demonstration number according to sound, arrive in the alert spot immediately, have only this moment the householder could could remove the alarm settings of receiving and dispatching main frame by the button A2 of the miniature coding transceiver carried, because this device can send the sound of 120db, can also play the effect of threatening the thief and notifying neighbours.

Claims (3)

1. a kind of groups joint defence wireless cipher alarm, it is characterized in that this alarm comprises detection coded transmitter 1, transmitting-receiving main frame 2, receiving terminal machine 3, miniature coded transmitter 4, survey coded transmitter 1 is transmitted to the alert signal that detects transmitting-receiving main frame 2 by password emitting antenna L1 password receiving antenna L2, miniature coded transmitter 4 is set the duty of transmitting-receiving main frame 2 by password emitting antenna L5, transmitting-receiving main frame 2 is handled alarming horn DL that password receiving antenna L4 that the password emitting antenna L3 of back by transmitting-receiving main frame 2 be transmitted to receiving terminal machine 3 receives and dispatches main frame 2 simultaneously with the signal of receiving and is sent sound greater than 120db, receiving terminal machine 3 carries out the signal of receiving after the decoding processing to carry out sound and light alarm by the acousto-optic warning unit of receiving terminal machine, miniature coded transmitter 4 carries out audible alarm simultaneously, wherein, the transmitting-receiving main frame receives decoding circuit 2-1 by short-range wireless, AND circuit 2-2, power supply 2-3, or control circuit 2-4, delay circuit 2-5, control circuit 2-6, code switch 2-7, long distance wireless coded transmitter 2-8 and voice guard DL form, short-range wireless receive decoding circuit 2-1 respectively with AND circuit 2-2 and or control circuit 2-4 connect, AND circuit is through control circuit 2-6, code switch 2-7 and the long distance wireless coding unit 2-8 that transmits connects, or control circuit 2-4 connects with the input end of control circuit 2-6 through delay circuit 2-5, output terminal at control circuit has voice guard DL, and power supply 2-3 is respectively each unit direct current is provided; The receiving terminal machine is by power supply 3-1, long-range reception decoding circuit 3-2, secondary decoding unit 3-3, display unit 3-4, OR circuit 3-5, voice guard FM form, long-range reception decoding circuit 3-2 connects with secondary decoding unit 3-3, OR circuit 3-5 respectively, secondary decoding unit 3-3 connects with display unit 3-4, cross-over connection voice guard FM between display unit 3-4 and OR circuit 3-5, power supply 3-1 provides direct current for each unit.

2. alarm according to claim 1, the transmitting-receiving main frame 2 that it is characterized in that it receives cryptogram decoding IC circuit 4 by short-range wireless, with door IC5, delay circuit IC13, or door IC6, three terminal regulator WY, relay J 1, J2, J3, triode BG1, BG2, BG3, diode D, filter rectification power supply DY1, direct supply E1, resistance R 1, R2, toggle switch KA-D, cipher remote control emitting module IC7 forms, wherein, the short-range wireless password receives the A of decoding circuit IC4, C holds and connects with two input ends of door IC5, the IC4 anode connects with 2 ends of three terminal regulator through relay normally closed contact J1-1, the negative terminal connecting to neutral current potential of IC4, the main coil of relay J 1 is connected across between the collector of 2 ends of three terminal regulator and triode BG3, the emitter connecting to neutral current potential of triode BG3, the base stage of triode BG3 through resistance R 2 with or the door IC6 output terminal connect, with the output one tunnel of door IC5 through delay circuit IC13 with or the input end of door IC6 connect, the B of IC4 end with or another input end of an IC6 connect, connect through the base stage of resistance R 1 with another road output of door IC5 with triode BG1, the collector of triode BG1 connects with the anode of power supply and the end of relay normally closed contact J2-1 respectively through diode D, 1 end of three terminal regulator WY connects with the other end of the normally closed contact J2-1 of relay J 2, the 3rd termination zero potential of three terminal regulator WY, the emitter of triode BG1 connects with the base stage of triode BG2 forms the secondary amplification, the collector short circuit of the collector of triode BG1 and triode BG2, the emitter connecting to neutral current potential of triode BG2, the main coil of relay J 2 is connected across between the collector of positive supply and triode BG2, the input end of toggle switch KA-D is with after alarm DL is in parallel, one end connects with positive potential through the normal opened contact J2-2 of relay J 2, one termination zero potential, the A of the output terminal of toggle switch and cipher remote control emitting module IC7, B, C, D four ends connect, the negative terminal connecting to neutral current potential of IC7, the outlet cross-over connection relay main coil J3 of conventional rectification filtering power, anode is often opened contact J3-1, normally closed contact J3-2 connects with the positive pole of dc standby power E1, negative terminal connects with the negative pole of dc standby power, provides power supply from drawing a signal between normal opened contact J3-1 and the normally closed contact J3-2 for the transmitting-receiving main frame.

3. alarm according to claim 1, the receiving terminal machine that it is characterized in that it is by cipher remote control receiving unit IC8, secondary decode component IC9, resistance R 3, R4, R5～R19, LED 1～LED15, or door IC10, IC11, IC12, triode BG4, alarm FM, filter rectification power supply DY2, close A3 by disconnecting, relay J 4, direct supply E2 forms, wherein, cipher remote control assembly IC8 passes through four output terminals A with the signal that receives, B, C, D one tunnel connects with the input end of secondary decode component IC9, another road with or the door IC10, two input ends of IC11 connect, the output terminal of IC10 and IC11 with or the door IC12 input end connect, the output terminal of IC12 connects through the base stage of resistance R 4 with triode BG4, the emitter connecting to neutral current potential of BG4, the end of the collector of BG4 device FM taking alarm, another termination positive supply of alarm FM, the anode of IC8 is through connecing positive supply by disconnecting pass A3, the negative terminal connecting to neutral current potential of IC8, the 6 termination zero potentials of IC9, the output terminal 8 of IC9,7,6,5,4,3,2,23,22,21,20,19,18,17,16 respectively through resistance R 5～R19, LED1～LED15 connecting to neutral current potential, the outlet cross-over connection relay main coil J4 of conventional rectification filtering power, anode is often opened contact J4-1, normally closed contact J4-2 connects with the positive pole of dc standby power E2, negative terminal connects with the negative pole of dc standby power, provides power supply from drawing a signal between normal opened contact J4-1 and the normally closed contact J4-2 for the receiving terminal machine.

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