CN204231469U - Fixed telephone device for detecting performance - Google Patents

Abstract

The utility model relates to a kind of fixed telephone device for detecting performance, and its feature comprises: described analog phone line and ringing circuit are made up of ac power transformer T1, full-bridge rectification element QZ, electrochemical capacitor C1; Described unit/two-shipper change-over circuit is made up of unit/two-shipper change over switch K1, resistance R2, resistance R3, resistance R4 and red light emitting diodes LED1, orange luminescence diode (LED) 2; Described ring/call dialing change-over circuit is made up of ring/call dialing change over switch K2, yellow light-emitting diode LED3, green LED LED4 and resistance R5.Fixed telephone device for detecting performance described in the utility model, as long as be connected on this device lead-out terminal tested telephone set.Especially under general technology condition, repair when there is no a telephone set of circuit working schematic diagram, use this device will be handy.

Description

Fixed telephone device for detecting performance

Technical field

The utility model belongs to electronic technology and technical field of telephone communication, relates to a kind of fixed telephone device for detecting performance.

Background technology

Telephone set detector is used for the pulse of any model or dual tone phone machine, can testing telephone dialing, send words, receive the functions such as words, ring, department's uses such as applicable communications equipment manufacturer, telephone set sale, maintenance.But telephone set detector finished product has price problem that is high, the not easily aspect such as universal.For effectively solving the problem, when repairing fixed telephone, phone can be connected on outside line and extract signal, but sometimes use a lot of inconvenience of existence, fixed telephone device for detecting performance described in the utility model, as long as be connected on this device lead-out terminal tested telephone set.Especially under general technology condition, repair when there is no a telephone set of circuit working schematic diagram, use this device will be handy.

Below describe the guardian technique content that fixed telephone device for detecting performance described in the utility model is involved in implementation process in detail.

Utility model content

Goal of the invention and beneficial effect: telephone set detector is used for the pulse of any model or dual tone phone machine, can testing telephone dialing, send words, receive the functions such as words, ring, department's uses such as applicable communications equipment manufacturer, telephone set sale, maintenance.But telephone set detector finished product has price problem that is high, the not easily aspect such as universal.For effectively solving the problem, when repairing fixed telephone, phone can be connected on outside line and extract signal, but sometimes use a lot of inconvenience of existence, fixed telephone device for detecting performance described in the utility model, as long as be connected on this device lead-out terminal tested telephone set.Especially under general technology condition, repair when there is no a telephone set of circuit working schematic diagram, use this device will be handy, and telephone detecting device cost of manufacture be less than 1/10th of special instrument.

A kind of fixed telephone device for detecting performance, it comprises 220V AC power, analog phone line and ringing circuit, unit/two-shipper change-over circuit, ring/call dialing change-over circuit, it is characterized in that:

Described analog phone line and ringing circuit are made up of ac power transformer T1, full-bridge rectification element QZ, electrochemical capacitor C1, full-bridge rectification element QZ alternating current input connects the Same Name of Ends of ac power transformer T1 secondary coil L2 and the different name end of secondary coil L2 respectively, the negative pole of full-bridge rectification element QZ DC output end connects the negative pole of electrochemical capacitor C1, the positive pole of full-bridge rectification element QZ DC output end connects the two ends that the positive pole of electrochemical capacitor C1 and GND, ac power transformer T1 primary coil L1 two ends, circuit ground connect 220V AC power respectively;

Described unit/two-shipper change-over circuit is by unit/two-shipper change over switch K1, resistance R2, resistance R3, resistance R4 and red light emitting diodes LED1, orange luminescence diode (LED) 2 forms, the negative pole of full-bridge rectification element QZ DC output end is connecting resistance R2 one end and resistance R3 one end and resistance R4 one end respectively, the two-shipper contact of another termination red light emitting diodes LED1 positive pole of resistance R2 and unit/two-shipper change over switch K1, another termination red light emitting diodes LED1 negative pole of resistance R3 and orange luminescence diode (LED) 2 negative pole, the two-shipper contact of red light emitting diodes LED1 positive pole order machine/two-shipper change over switch K1, the unit contact of another termination orange luminescence diode (LED) 2 positive pole of resistance R4 and unit/two-shipper change over switch K1,

Described ring/call dialing change-over circuit is by ring/call dialing change over switch K2, yellow light-emitting diode LED3, green LED LED4 and resistance R5 forms, the different name end of ac power transformer T1 secondary coil L3 connects the a1 end of ring/call dialing change over switch K2 by resistance R1, ring/a termination yellow light-emitting diode LED3 the positive pole of call dialing change over switch K2 and the Same Name of Ends of ac power transformer T1 secondary coil L3, the common port com of ring/call dialing change over switch K2 connects green LED LED4 negative pole and tested telephone set one end, yellow light-emitting diode LED3 negative pole connects green LED LED4 positive pole and resistance R5 one end, the common port com1 of another termination ring of resistance R5/call dialing change over switch K2 and the tested telephone set other end, the common of the b termination unit/two-shipper change over switch K1 of ring/call dialing change over switch K2, the b1 termination circuit ground GND of ring/call dialing change over switch K2.

Circuit working principle: in fixed telephone device for detecting performance circuit, forms ringing circuit of telephone by the 80V winding (116V-36V=80V) of ac power transformer T1 and resistance R1; Analog telephone outside line is formed through the QZ rectification of full-bridge rectification element and electrochemical capacitor C1 filtering by ac power transformer T1 winding 36V voltage.K1 is 1 × 2 single-pole double-throw switch (SPDT), selects for unit or two-shipper; K2 is 2 × 2 double-point double-throw switchs, for ring or call dialing conversion; LED 1 ~ LED4 is detected state indicator light.

Accompanying drawing explanation

Accompanying drawing 1 is the circuit working schematic diagram of fixed telephone device for detecting performance; In accompanying drawing 1, the pore on secondary coil L2 and secondary coil L3 side is expressed as the Same Name of Ends of secondary coil.

Embodiment

According to the fixed telephone device for detecting performance circuit working schematic diagram shown in accompanying drawing 1 and accompanying drawing explanation, and according to annexation between components and parts in each several part circuit described in utility model content, and components and parts technical parameter described in execution mode requires and circuit production main points are carried out enforcement and can be realized the utility model, is further described correlation technique of the present utility model below in conjunction with embodiment.

Technical scheme: fixed telephone device for detecting performance, it comprises 220V AC power, analog phone line and ringing circuit, unit/two-shipper change-over circuit, ring/call dialing change-over circuit, it is characterized in that:

Analog phone line and ringing circuit: it is made up of ac power transformer T1, full-bridge rectification element QZ, electrochemical capacitor C1, full-bridge rectification element QZ alternating current input connects the Same Name of Ends of ac power transformer T1 secondary coil L2 and the different name end of secondary coil L2 respectively, the negative pole of full-bridge rectification element QZ DC output end connects the negative pole of electrochemical capacitor C1, the two ends of positive pole and circuit ground GND, ac power transformer T1 primary coil L1 that the positive pole of full-bridge rectification element QZ DC output end meets electrochemical capacitor C1 connect the two ends of 220V AC power respectively;

Unit/two-shipper change-over circuit: it is by unit/two-shipper change over switch K1, resistance R2, resistance R3, resistance R4 and red light emitting diodes LED1, orange luminescence diode (LED) 2 forms, the negative pole of full-bridge rectification element QZ DC output end is connecting resistance R2 one end and resistance R3 one end and resistance R4 one end respectively, the two-shipper contact of another termination red light emitting diodes LED1 positive pole of resistance R2 and unit/two-shipper change over switch K1, another termination red light emitting diodes LED1 negative pole of resistance R3 and orange luminescence diode (LED) 2 negative pole, the two-shipper contact of red light emitting diodes LED1 positive pole order machine/two-shipper change over switch K1, the unit contact of another termination orange luminescence diode (LED) 2 positive pole of resistance R4 and unit/two-shipper change over switch K1,

Ring/call dialing change-over circuit: it is by ring/call dialing change over switch K2, yellow light-emitting diode LED3, green LED LED4 and resistance R5 forms, the different name end of ac power transformer T1 secondary coil L3 connects the a1 end of ring/call dialing change over switch K2 by resistance R1, ring/a termination yellow light-emitting diode LED3 the positive pole of call dialing change over switch K2 and the Same Name of Ends of ac power transformer T1 secondary coil L3, the common port com of ring/call dialing change over switch K2 connects one end of green LED LED4 negative pole and tested telephone set, yellow light-emitting diode LED3 negative pole connects green LED LED4 positive pole and resistance R5 one end, another termination ring of the resistance R5/common port com1 of call dialing change over switch K2 and the other end of tested telephone set, the common of the b termination unit/two-shipper change over switch K1 of ring/call dialing change over switch K2, the b1 termination circuit ground GND of ring/call dialing change over switch K2.

The technical parameter of components and parts and selection requirement

T1 is ac power transformer, and power is 5W, and secondary coil tap voltage is 0V, 36V, 116V respectively;

QZ is full-bridge rectification element, and selection work electric current is 1A, withstand voltage >=200V;

Resistance all selects power to be 1/4W metalfilmresistor or fixed carbon resister, and the resistance of resistance R1 is 3K Ω, and the resistance of resistance R2 is 510 Ω, and the resistance of resistance R3 is 39K Ω, and the resistance of resistance R4 is 1K Ω, and the resistance of resistance R5 is 36K Ω;

C1 is electrochemical capacitor, and its capacity is 470 μ F/100V;

K1 is unit/two-shipper change over switch, selects 1 × 2 single-pole double-throw switch (SPDT); K2 is ring/call dialing change over switch, selects 2 × 2 double-point double-throw switchs;

LED 1 ~ LED4 selects redness, orange, yellow, green 4 kinds of colors respectively, to distinguish difference in functionality.

Circuit production main points and circuit debugging

Because the circuit structure of fixed telephone device for detecting performance is fairly simple, comparison is easy, as long as the electronic devices and components performance generally selected is intact, and the components and parts annexation to specifications in accompanying drawing 1 is welded, physical connection line and welding quality are through carefully checking correctly, and circuit of the present utility model does not substantially need to carry out debugging and can normally work;

Circuit components layout of the present utility model, circuit structure design, its shape of outward appearance and size etc. are not all make key technology of the present utility model, neither the claimed technical characteristic of the utility model, therefore do not illustrate one by one in the description.

Fixed telephone device for detecting performance using method

Ring is overhauled: ring/call dialing change over switch K2 dials in ringing position, when telephone set is normal, yellow light-emitting diode LED3 and green LED LED4 should light.

Unit button, call function overhaul: unit/two-shipper change over switch K1 dials in unit position, ring/call dialing change over switch K2 dials in call dial location, and now green LED LED4 should light.

When telephone set is normal, telephone set off-hook green LED LED4 extinguishes, orange luminescence diode (LED) 2 lights, and after pressing numerical key or dialing, if pulse-type telephone set, orange luminescence diode (LED) 2 should be glittering, telephone set should have " dripping " sound; If audio-type telephone set, orange luminescence diode (LED) 2 should be often bright, and telephone set should have audio sound; Call maintenance telephone set time, can as on outside line effect, direct-detection associated voltage or electric current;

Two-shipper call maintenance, unit/two-shipper selector switch K1 dials in two-shipper position, ring/call dialing change over switch K2 dials in call dial location, output port also connects two telephone sets, if the normal green LED LED4 of telephone set lights, after off-hook, light-emitting diode green LED LED4 extinguishing, red light emitting diodes LED1 light simultaneously, and two telephone sets can communicate with each other.

Circuit components layout of the present utility model, circuit structure design, its shape of outward appearance and size etc. are not all make key technology of the present utility model, neither the claimed technical characteristic of the utility model, therefore do not illustrate one by one in the description.

Claims (1)

1. a fixed telephone device for detecting performance, it comprises 220V AC power, analog phone line and ringing circuit, unit/two-shipper change-over circuit, ring/call dialing change-over circuit, it is characterized in that:

Described analog phone line and ringing circuit are made up of ac power transformer T1, full-bridge rectification element QZ, electrochemical capacitor C1, full-bridge rectification element QZ alternating current input connects the Same Name of Ends of ac power transformer T1 secondary coil L2 and the different name end of secondary coil L2 respectively, the negative pole of full-bridge rectification element QZ DC output end connects the negative pole of electrochemical capacitor C1, the positive pole of full-bridge rectification element QZ DC output end connects the two ends that the positive pole of electrochemical capacitor C1 and GND, ac power transformer T1 primary coil L1 two ends, circuit ground connect 220V AC power respectively;

Described unit/two-shipper change-over circuit is by unit/two-shipper change over switch K1, resistance R2, resistance R3, resistance R4 and red light emitting diodes LED1, orange luminescence diode (LED) 2 forms, the negative pole of full-bridge rectification element QZ DC output end is connecting resistance R2 one end and resistance R3 one end and resistance R4 one end respectively, the two-shipper contact of another termination red light emitting diodes LED1 positive pole of resistance R2 and unit/two-shipper change over switch K1, another termination red light emitting diodes LED1 negative pole of resistance R3 and orange luminescence diode (LED) 2 negative pole, the two-shipper contact of red light emitting diodes LED1 positive pole order machine/two-shipper change over switch K1, the unit contact of another termination orange luminescence diode (LED) 2 positive pole of resistance R4 and unit/two-shipper change over switch K1,

Described ring/call dialing change-over circuit is by ring/call dialing change over switch K2, yellow light-emitting diode LED3, green LED LED4 and resistance R5 forms, the different name end of ac power transformer T1 secondary coil L3 connects the a1 end of ring/call dialing change over switch K2 by resistance R1, ring/a termination yellow light-emitting diode LED3 the positive pole of call dialing change over switch K2 and the Same Name of Ends of ac power transformer T1 secondary coil L3, the common port com of ring/call dialing change over switch K2 connects green LED LED4 negative pole and tested telephone set one end, yellow light-emitting diode LED3 negative pole connects green LED LED4 positive pole and resistance R5 one end, the common port com1 of another termination ring of resistance R5/call dialing change over switch K2 and the tested telephone set other end, the common of the b termination unit/two-shipper change over switch K1 of ring/call dialing change over switch K2, the b1 termination circuit ground GND of ring/call dialing change over switch K2.