Device for interlocking multiple telephone sets
A technology of interlocking device and telephone, which is applied in the field of electronic technology and telephone communication, and can solve the problems that the telephone line cannot work normally and others can hear it on another telephone
Inactive Publication Date: 2012-05-02
王寅寅
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Since the simple parallel connection method is commonly used, there are serious problems, such as: when you are using one of the telephones to talk, others can hear your voice on the other telephone; When more than 3 telephones are connected in parallel, it is often found that the telephone line cannot work normally
Method used
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Embodiment Construction
[0012] According to attached figure 1 The present invention can be realized by implementing the circuit working principle diagram and description of the accompanying drawings of the interlocking device for multiple telephones and the technical requirements of the components described below.
[0013] Component technical parameters and selection
[0014] Take the components used in the circuit of the phone armor as an example:
[0015] D1~D4 are silicon rectifier diodes, the model is IN4001, DW is a voltage regulator diode, and the voltage regulation value is 10V;
[0016] SCR is a one-way thyristor, the parameters of working current and withstand voltage are 1A / 400V;
[0017] LED is a light-emitting diode, and ￠5 red light-emitting diode can be selected;
[0018] The resistance value of resistor R1 is 10KΩ, the resistance value of resistor R2 is 220Ω, and the resistance value of resistor R3 is 430Ω;
[0019] C1 is an electrolytic capacitor with a parameter of 100μF / 16V;
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The invention belongs to the technical fields of electronics and telephone communication, and relates to a device for interlocking multiple telephone sets. The telephone sets interlocking device consists of a telephone line, a telephone line polarity conversion circuit, a telephone set A, a voltage stabilizing circuit, an off-hook interlocking circuit and an off-hook status indicating circuit. Through the device for interlocking multiple telephone sets provided by the embodiment, a person picking up the telephone at first has the rights to talk, and the one picking up the telephone later cannot dial or answer the telephone no matter in dialing or answering, thereby realizing private call and effectively preventing the problems of monitoring, abnormal work of the telephone line and the like. The interlocking device feeds by use of the voltage of the telephone line without necessity of increasing any control line; and the interlocking device has the characteristics that: the anode and cathode of the telephone line are not necessarily distinguished when the telephone line is connected, many telephone sets are connected in parallel, the telephone line is free from any influence when in work and the like.
Description
technical field [0001] The invention belongs to the technical fields of electronic technology and telephone communication, and relates to an interlocking device for multiple telephone sets. Background technique [0002] Many units or families have connected two or more telephone sets in parallel on the same telephone line for the convenience of telephone use. Since the simple parallel connection method is commonly used, there are serious problems, such as: when you are using one of the telephones to talk, others can hear your voice on the other telephone; When more than 3 telephones are connected in parallel, it is often found that the telephone line cannot work normally. [0003] In order to solve various problems existing in parallel connection of multiple telephone sets on the same telephone line, the interlocking device of multiple telephone sets described in this embodiment realizes whether it is making a call or answering a call, ensuring that the person who picks up ...
Claims
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Inventor 王寅寅何林
Owner 王寅寅