CN2420804Y - Intercommunication telephone for alarm controller - Google Patents
Intercommunication telephone for alarm controller Download PDFInfo
- Publication number
- CN2420804Y CN2420804Y CN 00214499 CN00214499U CN2420804Y CN 2420804 Y CN2420804 Y CN 2420804Y CN 00214499 CN00214499 CN 00214499 CN 00214499 U CN00214499 U CN 00214499U CN 2420804 Y CN2420804 Y CN 2420804Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- intercommunication telephone
- triode
- resistance
- alarm controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Alarm Systems (AREA)
Abstract
The utility model provides an intercommunication telephone for an alarm controller, which belongs to the communication equipment used on alarm system. The utility model is formed by the coupling connection of an intercommunication telephone extension set which is connected to a telephone bus and a telephone which is inserted on an alarm controller panel by an intercommunication telephone circuit which is composed of a triode feed circuit, a speech transmitting circuit, a blocking circuit, and an optical coupling detecting circuit, so that the intercommunication telephone and the alarm controller are integrated for communication. The alarm controller can carry out real-time detection for the off-hook state of the intercommunication telephone, can send out sound and light indication. The utility model has the advantages of simple structure design and low cost. The utility model also has the advantage that the cost performance of the alarm controller can be enhanced.
Description
The utility model provides a kind of intercommunication telephone that is used for alarm controller, belongs to the communication equipment on the warning system.
Fire alarm and other warning system require to report to the police mostly, and the scene can be by conversing between intercommunication telephone and the controlling alarm chamber when taking place, traditional way is that special main station or small branch exchange are equipped with in the controlling alarm chamber, main frame links to each other with each intercommunication telephone with bus or multi-thread mode, converse, intercommunication telephone has a system of one's own, does not have any contact with alarm controller.This system telephone main frame cost is higher, not susceptible to user acceptance.
The purpose of this utility model is to provide a kind of intercommunication telephone that is used on the alarm controller, and alarm controller and intercommunication telephone are integrated, and strengthens the performance of alarm controller, improves the ratio of performance to price, thereby has simplified the phone design of alarm control system.
The intercommunication telephone that is used for alarm controller provided by the utility model is that intercommunication telephone circuit, telephone line, the intercommunication telephone extension set by alarm controller conversed, and method of operation is:
1), the outside line of intercommunication telephone is drawn, receives and be loaded on each the on-the-spot intercommunication telephone extension set of reporting to the police;
2), make warning system be in normal operating condition;
3), make the extension off-hook, alarm controller can detect off hook state, and sends phone ringing sound;
4), the intercommunication telephone extension set that will be put in the controlling alarm chamber inserts the telephone jack of alarm control panel, presses telephone key, converses, the phone indicator light is bright simultaneously, there is the phone off-hook at the expression scene.
For achieving the above object, intercommunication telephone provided by the utility model is made up of the intercommunication telephone extension set of alarm controller, extension and the intercommunication telephone circuit that is connected on the double bus, the intercommunication telephone circuit is made up of triode feed circuit, voice transfer circuit, block isolating circuit and optocoupler testing circuit, the direct current signal of triode feed circuit output is added on the bus of intercommunication telephone, for voice transfer provides direct current; Employing is connected on the audio frequency transformer (T on the double bus
1) do the voice transfer circuit, finish the coupled transfer of voice signal; Employing is serially connected in audio frequency transformer (T
1) elementary, secondary coil on two electric capacity (C
2, C
5) constitute block isolating circuit, when off-hook not, stop direct current to be carried to the optocoupler testing circuit, through another bus input, its output signal is sent into the CPU of alarm controller to the input off hook signal of optocoupler testing circuit by the intercommunication telephone extension set.
Above-mentioned triode feed circuit is by two feed triode (V
1, V
3), resistance (R
1, R
2, R
7, R
8), electric capacity (C
1, C
4) and diode (V
2, V
4) composition two-way triode feed circuit, wherein two electric capacity (C
1, C
4) be connected to two triode (V respectively
1, V
3) e, b interpolar, two resistance (R
1, R
7) be connected to two triode (V respectively
1, V
3) c, b interpolar, two resistance (R in addition
2, R
8) respectively with two diode (V
2, V
4) serial connection and with two triode (V
1, V
3) output join.
The optocoupler testing circuit is by two photocoupler (N
1, N
2), two electric capacity (C
3, C
6) and resistance (R
3, R
4, R
5, R
6, R
9, R
10, R
11, R
12) composition two-way optocoupler testing circuit, two electric capacity (C
3, C
6) and two resistance (R
4, R
10) back in parallel respectively and two current-limiting resistance (R
5, R
11) be serially connected with two photocoupler (N
1, N
2) input; The optocoupler testing circuit is by two resistance (R
3, R
9) be connected on the telephony bus, other is two resistance (R
6, R
12) for being connected on two photocoupler (N
1, N
2) pull-up resistor of output.
Intercommunication telephone provided by the utility model has adopted the intercommunication telephone circuit of simplicity of design, cheap, reliable in function, intercommunication telephone and alarm controller are combined together, simplify the phone design of alarm control system, strengthened the performance of alarm controller, improved the ratio of performance to price.
Description of drawings:
Fig. 1, the utility model electricity theory diagram;
The electrical schematic diagram of Fig. 2, the utility model intercommunication telephone circuit;
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1, the intercommunication telephone circuit is drawn by double bus, each the on-the-spot extension of reporting to the police all is connected on the double bus, the intercommunication telephone jack is housed on the panel of alarm controller, can insert extension, the intercommunication telephone circuit detects the extension set state in real time, during arbitrary phone off-hook, all off hook signal can be sent to the CPU on the alarm controller, so that carry out sound, light indication.
As shown in Figure 2, the intercommunication telephone circuit is made up of triode feed circuit, audio frequency transformer, capacitance road and optocoupler testing circuit.
Triode V in the triode feed circuit
1, V
3Be feed triode (adopting the 2SZ9012 type) that both sides provide electric current for intercommunication; Capacitor C
1, C
4Be used to reduce the interference that the audio signal from power supply causes conversation, reduce noise; Diode V
2, V
4(adopting the 1N4004 type) is the protection diode, and the high pressure that is used to stop misconnection to be gone on the telephone wire causes damage to circuit.1: 1 audio frequency transformer T really
1Finish the coupled transfer of intercommunication both sides speech.
Capacitor C
2, C
5Be capacitance, when normal operation, the intercommunication both sides are off-hook not, can stop direct current to pass through, and makes not conducting of optocoupler.
Photocoupler N in the optocoupler testing circuit
1, N
2(adopting the TLP521 type), wherein resistance R
3, R
9Be divider resistance; Capacitor C
3, C
6Be filter capacitor; Resistance R
4, R
10Be respectively capacitor C
3, C
6Discharge circuit is provided; Resistance R
5, R
11Be the current-limiting resistance of optocoupler input, resistance R
6, R
12Pull-up resistor for the optocoupler output.When phone insertion or off-hook, DC power supply forms path by phone, causes the optocoupler conducting, and optocoupler output becomes low level.
Claims (3)
1, a kind of intercommunication telephone that is used for alarm controller, the intercommunication telephone extension set and the extension that is connected on the double bus that comprise alarm controller, it is characterized in that: the two is conversed by the intercommunication telephone circuit, described intercommunication telephone circuit is made up of triode feed circuit, voice transfer circuit, block isolating circuit and optocoupler testing circuit, the direct current signal of triode feed circuit output is added on the bus of intercommunication telephone, adopts audio frequency transformer (T
1) do voice transfer circuit, audio frequency transformer (T
1) be connected on the double bus; By respectively with audio frequency transformer (T
1) two electric capacity (C of elementary, secondary coil serial connection
2, C
5) constitute block isolating circuit, the input signal of optocoupler testing circuit by the intercommunication telephone extension set through another bus input, the deliver newspaper CPU of alert controller of its output signal.
2, the intercommunication telephone that is used for alarm controller according to claim 1 is characterized in that: described triode feed circuit is by two feed triode (V
1, V
3), resistance (R
1, R
2, R
7, R
8), electric capacity (C
1, C
4) and diode (V
2, V
4) the two-way triode feed circuit formed, two electric capacity (C
1, C
4) be connected to two triode (V respectively
1, V
3) e, b interpolar, two resistance (R
1, R
7) be connected to two triode (V respectively
1, V
3) c, b interpolar, two resistance (R in addition
2, R
8) respectively with two diode (V
2, V
4) serial connection, and with two triode (V
1, V
3) output join.
3, the intercommunication telephone that is used for alarm controller according to claim 1 is characterized in that: described optocoupler testing circuit is by two photocoupler (N
1, N
2), two electric capacity (C
3, C
6) and resistance (R
3, R
4, R
5, R
6, R
9, R
10, R
11, R
12) composition two-way optocoupler testing circuit, two electric capacity (C
3, C
6) and two resistance (R
4, R
10) back in parallel respectively and two shunt resistance (R
5, R
11) be serially connected with two photocoupler (N
1, N
2) input; The optocoupler testing circuit is by two resistance (R
3, R
9) be connected on the telephony bus, other is two resistance (R
6, R
12) for being connected on two photocoupler (N
1, N
2) pull-up resistor of output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00214499 CN2420804Y (en) | 2000-05-01 | 2000-05-01 | Intercommunication telephone for alarm controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00214499 CN2420804Y (en) | 2000-05-01 | 2000-05-01 | Intercommunication telephone for alarm controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2420804Y true CN2420804Y (en) | 2001-02-21 |
Family
ID=33580596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00214499 Expired - Fee Related CN2420804Y (en) | 2000-05-01 | 2000-05-01 | Intercommunication telephone for alarm controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2420804Y (en) |
-
2000
- 2000-05-01 CN CN 00214499 patent/CN2420804Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104660752B (en) | A kind of emergency communication main frame for having both inside and outside call function | |
| CN201255757Y (en) | Electric cable break detecting alarm | |
| CN204408435U (en) | A kind of emergency communication main frame | |
| CN2420804Y (en) | Intercommunication telephone for alarm controller | |
| CN217546082U (en) | CAN bus resistance matching circuit | |
| CN201259730Y (en) | Three-phase four-wire distribution circuit and transformer anti-theft pre-alarm device | |
| CN201018563Y (en) | Device for obtaining electricity from phone line | |
| CN201657078U (en) | Telephone anti-theft device | |
| CN205263982U (en) | Cable burglar alarm | |
| CN201111665Y (en) | Cable wire-cutting alarming front end device | |
| CN2563586Y (en) | Remote transfer automatic alarm device for accient cut-off | |
| CN213365674U (en) | One-key alarm device and system | |
| CN201374535Y (en) | Communication cable burglar alarm | |
| CN2183060Y (en) | Device for automatic identifying signal of telephone and fax | |
| CN103491268A (en) | Wired and wireless alarming system | |
| CN2496196Y (en) | Multipurpose telephone set | |
| CN201315623Y (en) | Pick-up/hang-up detecting circuit and telephone interface equipment | |
| CN2165582Y (en) | Automatic message-recording controller for telephone | |
| CN2202382Y (en) | Automatic alarm of telephone line | |
| CN201063613Y (en) | Distribution block equipped with signal receiving/transmitting apparatus | |
| CN101534362A (en) | Automatically alarming telephone set for non-ring-off | |
| CN2194570Y (en) | Illegal use proof device for telephone line | |
| CN2218428Y (en) | Multifunctional automatic controller for telephone recording | |
| CN2523126Y (en) | Automatic switching device from telephone set to building intercom | |
| CN2166562Y (en) | Shunt interlocking device for telephone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |