CN204177908U - Multifunctional line measurement instrument - Google Patents

Abstract

The utility model relates to the technical field of communication testing and maintenance tools, which is a multifunctional line measuring instrument, which includes a main tester and an auxiliary tester. The inner side of the main tester is fixed with a temperature and humidity measurement module, a clock circuit module, a lighting circuit module, and a tester. Switch, power supply, protection resistor and eight main light-emitting diodes distributed sequentially from top to bottom; the temperature and humidity measurement module includes a temperature and humidity display screen and a temperature and humidity switch. The utility model has a reasonable and compact structure. It can not only complete the measurement of the ambient temperature and humidity and the reading of the maintenance time through the temperature and humidity measurement module and the clock circuit module, making it easy to record; To judge the on-off state, the lighting circuit module can also assist in illuminating the position with poor light. Its structure is simple, the manufacturing cost is low, it is easy to configure in large quantities, and it can meet the detection requirements. It is small in size, easy to carry, easy to operate, easy to maintain, and saves It saves time and effort, and can improve the work efficiency of operation and maintenance personnel.

Description

Multi-function line measuring instrument

technical field

The utility model relates to the technical field of communication testing and maintenance tools, and is a multifunctional line measuring instrument.

Background technique

At present, most maintenance personnel in the computer room have the following problems when dealing with the twisted pair and coaxial cable on and off:

1. The existing temperature and humidity detectors, clocks, and lighting flashlights have single functions and need to be configured separately, which increases the maintenance complexity of the computer room. More equipment is not easy to carry for inspection and maintenance personnel, which affects maintenance efficiency;

2. The cable tester widely used in the market is more expensive than this equipment, and its internal structure is relatively complicated, which affects its large number of applications and causes equipment resources to be tight;

3. The operation is relatively cumbersome, and the volume is large, which is not conducive to carrying. When the equipment fails, it can only be returned to the factory for repair and the price is expensive, which greatly affects the work efficiency of the operation and maintenance personnel.

Contents of the invention

The utility model provides a multifunctional line measuring instrument, which overcomes the shortcomings of the above-mentioned prior art, and can effectively solve the problem that the existing communication test and maintenance tools have single functions, need to be configured separately, are inconvenient to carry, high in cost, and inconvenient to be equipped in large quantities. , the problem of needing to return to the factory for repair after damage.

The technical scheme of the utility model is realized through the following measures: a multi-functional line measuring instrument, including a main tester and an auxiliary tester, the inner side of the main tester is fixed with a temperature and humidity measurement module, a clock circuit module, and a lighting circuit module , test switch, power supply, protection resistor, and eight main light-emitting diodes distributed sequentially from top to bottom; the temperature and humidity measurement module includes a temperature and humidity display screen and a temperature and humidity switch, the clock circuit module includes a clock display screen and a clock switch, and a lighting circuit module Including the light bulb and lighting switch, the display parts of the temperature and humidity display and the clock display and the light-emitting parts of the bulb are all located outside the main tester, and the trigger parts of the temperature and humidity switch, clock switch, lighting switch and test switch are all located on the main tester. On the outside of the tester, the main tester corresponding to the light-emitting part of each main LED has a main light-transmitting window; the outside of the main tester is fixed with a main RJ45 slot, a main BNC connector and a main Q9 connector. The main RJ45 slot includes Eight main twisted-pair wiring pins located inside the main tester, the two wiring pins of the main BNC connector are electrically connected with the two wiring pins of the main Q9 connector through wires and form two main coaxial wires inside the main tester node; the positive terminals of the four main light-emitting diodes located above are all connected in parallel through wires to form an upper node, and the negative terminals of the four main light-emitting diodes located below are all connected in parallel through wires to form a lower node; A protection resistor, a temperature and humidity measurement module, a clock circuit module, a lighting circuit module, a test switch and a power supply are connected in series between the node and the lower node. The positive ends of the light-emitting diodes are electrically connected to the eight main twisted-pair wiring pins in sequence, any negative end of the four main light-emitting diodes located above is electrically connected to a main coaxial node, and the four located below are electrically connected together. Any positive end of the main LEDs is electrically connected to another main coaxial node; eight auxiliary LEDs are fixed on the inner side of the auxiliary tester and distributed sequentially from top to bottom, corresponding to each auxiliary LED. There are auxiliary light-transmitting windows on the auxiliary tester at the light-emitting part; auxiliary RJ45 slots, auxiliary BNC connectors and auxiliary Q9 connectors are fixed on the outside of the auxiliary tester, and the auxiliary RJ45 slot includes eight auxiliary twisted pairs located inside the auxiliary tester. Connecting feet, the two connecting feet of the auxiliary BNC connector are electrically connected with the two connecting feet of the auxiliary Q9 connector through wires and form two auxiliary coaxial nodes inside the auxiliary tester; the four auxiliary light-emitting diodes located above The negative terminals of the four auxiliary light-emitting diodes located below and the positive terminals of the four auxiliary light-emitting diodes located below are electrically connected together through wires, and the positive terminals of the four auxiliary light-emitting diodes located above and the negative terminals of the four auxiliary light-emitting diodes located below are sequentially connected with the eight auxiliary light-emitting diodes. Auxiliary twisted-pair wiring pins are electrically connected together, any positive end of the four auxiliary light-emitting diodes at the top is electrically connected with an auxiliary coaxial node, and any negative terminal of the four auxiliary light-emitting diodes at the bottom is electrically connected together. The poles are electrically connected together with another secondary coaxial junction.

Below is the further optimization or/and improvement to above-mentioned utility model technical scheme:

The above-mentioned power supply can be a 9V stacked battery, and the main tester corresponding to the position of the power supply has a battery replacement window, and a removable battery back cover is installed on the battery replacement window.

A detachable and merging rotating buckle device can be fixedly installed between the outer side of the above-mentioned main tester and the outer side of the auxiliary tester.

The outside of the above-mentioned main tester can also be fixed with a main RJ11 slot, and the main RJ11 slot includes two main audio connection pins; any one of the negative ends of the four main light-emitting diodes on the top is electrically connected to a main audio connection pin. Together, any positive end of the four main light-emitting diodes located below is electrically connected to the other main audio connection pin; an auxiliary RJ11 slot is also fixed on the outside of the auxiliary tester, and the auxiliary RJ11 slot includes two auxiliary audio Connecting pin; any positive end of the four auxiliary light-emitting diodes at the top is electrically connected to an auxiliary audio wiring pin, and any negative end of the four auxiliary light-emitting diodes at the bottom is electrically connected to the other auxiliary audio wiring pin. connected together.

The position order of the above two main light emitting diodes electrically connected to the main coaxial node can be consistent with the position order of the two auxiliary light emitting diodes electrically connected to the auxiliary coaxial node, and the main audio connection pin circuit The position sequence of the two main light-emitting diodes connected together is consistent with the position order of the two auxiliary light-emitting diodes electrically connected together with the auxiliary audio connection pin.

The position order of the two main light-emitting diodes that are electrically connected together with the main audio connection pin can be different from the position order of the two main light-emitting diodes that are electrically connected together with the main coaxial node; The position sequence of the two auxiliary light emitting diodes together is different from the position of the two auxiliary light emitting diodes electrically connected together with the auxiliary coaxial node.

The order of the above two main light emitting diodes electrically connected to the main coaxial node from top to bottom can be the third and sixth respectively, and the two auxiliary light emitting diodes electrically connected to the auxiliary coaxial node The order of the diodes from top to bottom is the third and the sixth; the order of the two main light-emitting diodes that are electrically connected to the main audio connection pins is the fourth and the fifth from the top to the bottom. The order from top to bottom of the two auxiliary light-emitting diodes electrically connected together with the auxiliary audio connection pin is the fourth and fifth respectively.

The utility model has a reasonable and compact structure and is easy to use. It not only can complete the measurement of the ambient temperature and humidity and the reading of the maintenance time through the temperature and humidity measurement module and the clock circuit module, making it easy to record; The on-off state of the coaxial line can be judged, and the lighting circuit module can also assist in illuminating the position with poor light. It is convenient, saves time and effort, and can improve the work efficiency of operation and maintenance personnel.

Description of drawings

Accompanying drawing 1 is the schematic diagram of the front view of the preferred embodiment of the utility model.

Accompanying drawing 2 is the circuit connection diagram of accompanying drawing 1.

The codes in the drawings are: 1 is the main tester, 2 is the auxiliary tester, 3 is the temperature and humidity measurement module, 4 is the clock circuit module, 5 is the lighting circuit module, 6 is the test switch, 7 is the power supply, 8 is the Protection resistor, 9 is the main light-emitting diode, 10 is the temperature and humidity display screen, 11 is the temperature and humidity switch, 12 is the clock display screen, 13 is the clock switch, 14 is the light bulb, 15 is the lighting switch, 16 is the main RJ45 slot, 17 Main BNC connector, 18 is the main Q9 connector, 19 is the main coaxial node, 20 is the upper node, 21 is the lower node, 22 is the auxiliary LED, 23 is the auxiliary RJ45 slot, 24 is the auxiliary BNC connector, 25 is an auxiliary Q9 connector, 26 is an auxiliary coaxial node, 27 is a rotary buckle device, 28 is a main RJ11 slot, and 29 is an auxiliary RJ11 slot.

Detailed ways

The utility model is not limited by the following examples, and the specific implementation manner can be determined according to the technical scheme of the utility model and actual conditions.

In this utility model, for the convenience of description, the description of the relative positional relationship of each component is described according to the layout method of Fig. The relationship is determined according to the layout direction of the drawings in the description.

Below in conjunction with embodiment and accompanying drawing, the utility model is further described:

As shown in accompanying drawings 1 and 2, the multi-functional line measuring instrument includes a main tester 1 and an auxiliary tester 2, and the inner side of the main tester 1 is fixed with a temperature and humidity measurement module 3, a clock circuit module 4, a lighting circuit module 5, Test switch 6, power supply 7, protection resistor 8 and eight main light-emitting diodes 9 distributed sequentially from top to bottom; temperature and humidity measurement module 3 includes temperature and humidity display screen 10 and temperature and humidity switch 11, clock circuit module 4 includes clock display screen 12 and a clock switch 13, the lighting circuit module 5 includes a bulb 14 and a lighting switch 15, and the display positions of the temperature and humidity display screen 10 and the clock display screen 12 and the light-emitting parts of the bulb 14 are all located outside the main tester 1, and the temperature and humidity switch 11. The triggering parts of the clock switch 13, the lighting switch 15 and the test switch 6 are all located outside the main tester 1, and the main tester 1 corresponding to the light-emitting parts of each main light-emitting diode 9 has a main light-transmitting window; the main tester The outer side of tester 1 is fixed with main RJ45 slot 16, main BNC connector 17 and main Q9 joint 18, and main RJ45 slot 16 comprises eight main twisted-pair terminal pins that are positioned at main tester 1 inner side, two of main BNC joint 17 The connecting pins are electrically connected with the two connecting pins of the main Q9 connector 18 by wires and form two main coaxial nodes 19 inside the main tester 1; The wires are connected in parallel to form an upper node 20, and the negative ends of the four main light-emitting diodes 9 located below are all connected in parallel through wires to form a lower node 21; the upper node 20 and the lower node 21 are sequentially connected in series Protection resistor 8, temperature and humidity measurement module 3, clock circuit module 4, lighting circuit module 5, test switch 6 and power supply 7, the negative terminals of the four main light emitting diodes 9 located above and the terminals of the four main light emitting diodes 9 located below The positive terminal is electrically connected with the eight main twisted-pair wiring pins in sequence, any negative terminal of the four main light-emitting diodes 9 located above is electrically connected with a main coaxial node 19, and the four located below are electrically connected together. Any positive end of the main light-emitting diode 9 is electrically connected to another main coaxial node 19; the inner side of the auxiliary tester 2 is fixed with eight auxiliary light-emitting diodes 22 distributed sequentially from top to bottom, corresponding to each auxiliary light-emitting diode 22. Auxiliary light-transmitting windows are arranged on the auxiliary tester 2 of the light-emitting part of the light-emitting diode 22; the outside of the auxiliary tester 2 is fixed with auxiliary RJ45 slot 23, auxiliary BNC connector 24 and auxiliary Q9 connector 25, and auxiliary RJ45 slot 23 includes eight Auxiliary twisted-pair wiring pins positioned at the inner side of auxiliary tester 2, two wiring pins of auxiliary BNC connector 24 and two wiring pins of auxiliary Q9 connector 25 are electrically connected together by wires and form two inner sides of auxiliary tester 2 Auxiliary coaxial node 26; the negative ends of the four auxiliary light-emitting diodes 22 on the top and the positive ends of the four auxiliary light-emitting diodes 22 on the bottom are electrically connected together by wires, and the four auxiliary light-emitting diodes 22 on the top The positive terminal and the negative terminals of the four auxiliary light-emitting diodes 22 below are electrically connected with the eight auxiliary twisted-pair wiring pins in sequence, and the upper ones Any positive end of the four auxiliary light-emitting diodes 22 is electrically connected to an auxiliary coaxial node 26, and any negative end of the four auxiliary light-emitting diodes 22 located below is electrically connected to another auxiliary coaxial node 26. connected together. According to requirements, the temperature and humidity measurement module 3, the clock circuit module 4 and the lighting circuit module 5 can all adopt existing known technologies. The main light emitting diode 9 and the auxiliary light emitting diode 22 are all known light emitting diodes, and the light emitting diodes are referred to as LED for short. It is a diode made of compounds of gallium, arsenic, phosphorus, nitrogen, and indium. It can radiate visible light when electrons and holes recombine, so it can be used to make light-emitting diodes. It is usually used as an indicator light in circuits and instruments. , each LED includes a positive terminal and a negative terminal. When in use, the temperature and humidity switch 11 and the clock switch 13 can be opened respectively, and then the temperature and humidity data and time of the environment can be obtained by the temperature and humidity display screen 10 and the clock display screen 12; the lighting switch 15 can be opened to realize lighting by the bulb 14; Insert the two ends of the cable under test into the corresponding main tester 1 and auxiliary tester 2 respectively, turn on the test switch 6, and check the lighting conditions of all the main light-emitting diodes 9 and auxiliary light-emitting diodes 22 (the light-emitting conditions include light-emitting state and non-light-emitting state) to judge the on-off of the cable under test; the main LED 9 and auxiliary LED 22 in the same order will show the same lighting situation, which can be used as a group of LED groups, and according to their connection relationship, when there is a group of light-emitting diodes in the light-emitting state, its number is at least two groups, and the two groups correspond to one of the four groups above and one of the four groups below; the two ends of the twisted pair can be inserted into the The main RJ45 slot 16 and the auxiliary RJ45 slot 23, the twisted pair includes eight twisted inner wires, which can correspond to the corresponding main light emitting diode 9 and auxiliary light emitting diode 22 respectively, when there are no less than two groups of light emitting diode groups In the light-emitting state, the twisted-pair inner wires corresponding to the light-emitting LED groups are in the connected state, and the twisted-pair inner wires corresponding to the non-light-emitting LED groups are in the interrupted state, and all the LED groups are in the non-light-emitting state. , then at least four twisted-pair inner wires are interrupted, and the LED groups corresponding to the four twisted-pair inner wires are the upper four groups or the lower four groups; one end of the coaxial line can be inserted into the main BNC connector 17 or the main Q9 connector 18, the other end of the coaxial cable can be inserted into the auxiliary BNC connector 24 or the auxiliary Q9 connector 25. The coaxial cable includes two coaxial inner wires. According to their connection relationship, the corresponding two groups of LEDs There are only two states of full light and no light. When it is in the state of full light, the two coaxial inner lines are connected. When it is in the state of no light, at least one coaxial inner line is in a disconnected state. In this way, not only can the measurement of the ambient temperature and humidity and the reading of the maintenance time be completed, making it easy to record; it can also complete the judgment of the on-off state of the twisted pair and the coaxial line. The location, its structure is simple, the manufacturing cost is low, it is convenient to configure in large quantities, and can meet the detection needs, and it is small in size, easy to carry, easy to operate, easy to maintain, save time and effort, and can improve the work efficiency of operation and maintenance personnel.

According to actual needs, the above-mentioned multi-functional measuring instrument can be further optimized or/and improved:

As shown in accompanying drawings 1 and 2, the power supply 7 is a 9V stacked battery, and the main tester 1 corresponding to the position of the power supply 7 has a battery replacement window on which a removable battery back cover is installed. The laminated battery is made of ordinary chemical dry batteries into small rectangular blocks, and multiple stacked and connected in series to form an independent battery. It has the characteristics of small size, high output voltage, and easy replacement.

As shown in Figures 1 and 2, a detachable and merging rotating buckle device 27 is fixedly installed between the outer side of the main tester 1 and the outer side of the auxiliary tester 2 . This can make it more convenient to use, and is not easy to lose, and is easy to place; one to test.

As shown in accompanying drawing 1,2, the outside of main tester 1 is also fixed with main RJ11 slot 28, and main RJ11 slot 28 comprises two main audio connection pins; The negative terminal is electrically connected with a main audio connection pin, and any positive terminal of the four main light-emitting diodes 9 below is electrically connected with the other main audio connection pin; the auxiliary tester 2 is also fixed on the outside. RJ11 slot 29, the auxiliary RJ11 slot 29 includes two auxiliary audio connection pins; Any one positive terminal in the four auxiliary light-emitting diodes 22 on the top is electrically connected with an auxiliary audio connection foot, and the four auxiliary audio connection pins located below are electrically connected together. Any negative end of the light emitting diode 22 is electrically connected with another auxiliary audio connection pin. During use, the two ends of the audio cable can be inserted into the main RJ11 slot 28 and the auxiliary RJ11 slot 29 respectively. The audio cable includes two audio inner wires, and its on-off state judgment is the same as that of the coaxial cable. In this way, it can also detect the continuity of the audio cable without increasing its volume and retaining its portability.

As shown in accompanying drawing 1,2, the position sequence of two main light-emitting diodes 9 that are electrically connected together with main coaxial node 19 and the two auxiliary light-emitting diodes 22 that are electrically connected together with auxiliary coaxial node 26 The position order is consistent, and the position order of the two main light-emitting diodes 9 electrically connected to the main audio connection pin is consistent with the two auxiliary light-emitting diodes 22 electrically connected to the auxiliary audio connection pin. This makes the lighting of its display more intuitive.

As shown in accompanying drawings 1 and 2, the position order of the two main light emitting diodes 9 electrically connected together with the main audio connection pin is different from that of the two main light emitting diodes 9 electrically connected together with the main coaxial node 19 Position order; the position order of the two auxiliary light emitting diodes 22 electrically connected to the auxiliary audio connection pin is different from the position of the two auxiliary light emitting diodes 22 electrically connected to the auxiliary coaxial node 26 . In this way, the wiring and maintenance process can be simplified, and the frequency of use of the corresponding main light emitting diode 9 and auxiliary light emitting diode 22 can be reduced to prolong their use state.

As shown in accompanying drawing 1,2, the order from top to bottom of two main LEDs 9 that are electrically connected together with main coaxial node 19 is respectively the third and the sixth, and auxiliary coaxial node 26 The order from top to bottom of the two auxiliary light emitting diodes 22 that are electrically connected together is the third and sixth respectively; The order of counting is respectively the fourth and the fifth, and the order counting from top to bottom of the two auxiliary light-emitting diodes 22 electrically connected together with the auxiliary audio connection pin is respectively the fourth and the fifth. In this way, it is convenient to mark them on the outside of the main tester 1 and the auxiliary tester 2, so that the light-emitting conditions displayed by them are more intuitive.

The above technical features constitute the best embodiment of the utility model, which has strong adaptability and best implementation effect, and non-essential technical features can be increased or decreased according to actual needs to meet the needs of different situations.

Claims (10)

1. A kind of multi-function measuring instrument, it is characterized in that comprising main tester and auxiliary tester, the inboard of main tester is fixed with temperature and humidity measurement module, clock circuit module, lighting circuit module, test switch, power supply, protective resistor and Eight main light-emitting diodes are distributed sequentially from top to bottom; the temperature and humidity measurement module includes a temperature and humidity display and a temperature and humidity switch, the clock circuit module includes a clock display and a clock switch, the lighting circuit module includes a light bulb and a lighting switch, and the temperature and humidity display The display part of the screen and the clock display and the light-emitting part of the bulb are all located outside the main tester, and the trigger parts of the temperature and humidity switch, clock switch, lighting switch and test switch are all located outside the main tester, corresponding to each main light-emitting There are main light-transmitting windows on the main tester of the light-emitting part of the diode; the main RJ45 slot, main BNC connector and main Q9 connector are fixed on the outside of the main tester, and the main RJ45 slot includes eight main testers located inside the main tester. Twisted-pair terminal pins, the two terminal pins of the main BNC connector are electrically connected with the two terminal pins of the main Q9 connector through wires and form two main coaxial nodes inside the main tester; the four main The positive ends of the light emitting diodes are all connected in parallel through wires to form an upper node, and the negative ends of the four main light emitting diodes located below are all connected in parallel through wires to form a lower node; the upper node and the lower node are connected in sequence A protection resistor, a temperature and humidity measurement module, a clock circuit module, a lighting circuit module, a test switch and a power supply are connected in series. The two main twisted-pair wiring pins are electrically connected together, any negative terminal of the four main light-emitting diodes located above is electrically connected with a main coaxial node, and any positive terminal of the four main light-emitting diodes located below is electrically connected together. The extreme end is electrically connected with another main coaxial node; eight auxiliary light-emitting diodes distributed sequentially from top to bottom are fixed on the inner side of the auxiliary tester, and the auxiliary tester corresponding to the light-emitting part of each auxiliary light-emitting diode has Auxiliary light-transmitting window; auxiliary RJ45 slots, auxiliary BNC connectors and auxiliary Q9 connectors are fixed on the outside of the auxiliary tester. The auxiliary RJ45 slot includes eight auxiliary twisted-pair terminals located inside the auxiliary tester, and two The connecting pins are electrically connected with the two connecting pins of the auxiliary Q9 connector through wires and form two auxiliary coaxial nodes inside the auxiliary tester; the negative terminals of the four auxiliary light-emitting diodes located above and the four The positive ends of the auxiliary light-emitting diodes are electrically connected together through wires, and the positive ends of the four auxiliary light-emitting diodes located above and the negative ends of the four auxiliary light-emitting diodes located below are electrically connected to the eight auxiliary twisted-pair wiring pins in sequence. Together, any positive end of the four auxiliary light-emitting diodes located above is electrically connected to an auxiliary coaxial node, and any negative end of the four auxiliary light-emitting diodes located below is connected to another auxiliary coaxial node. electrically connected together. 2. The multifunctional line measuring instrument according to claim 1, characterized in that the power supply is a 9V laminated battery, the main tester corresponding to the position of the power supply has a battery replacement window, and a removable battery rear cover is installed on the battery replacement window . 3. The multifunctional line measuring instrument according to claim 2, characterized in that a detachable and combined rotating buckle device is fixedly installed between the outer side of the main tester and the outer side of the auxiliary tester. 4. according to claim 1 or 2 or 3 described multi-function measuring instruments, it is characterized in that the outside of main tester is also fixed with main RJ11 slot, and main RJ11 slot comprises two main audio frequency terminal pins; Any one of the negative terminals of the four main LEDs is electrically connected to a main audio wiring pin, and any positive terminal of the four main LEDs located below is electrically connected to the other main audio wiring pin; auxiliary test An auxiliary RJ11 slot is also fixed on the outside of the device, and the auxiliary RJ11 slot includes two auxiliary audio connection pins; any positive terminal of the four auxiliary light-emitting diodes at the top is electrically connected with an auxiliary audio connection foot, and the auxiliary audio connection pin at the bottom Any negative terminal of the four auxiliary light-emitting diodes is electrically connected to the other auxiliary audio connection pin. 5. The multifunctional line measuring instrument according to claim 4, characterized in that the position sequence of the two main light-emitting diodes electrically connected together with the main coaxial node is the same as that of the two main light-emitting diodes electrically connected together with the auxiliary coaxial node. The position order of the two auxiliary light emitting diodes is consistent, and the position order of the two main light emitting diodes electrically connected to the main audio connection pin is consistent with the position order of the two auxiliary light emitting diodes electrically connected to the auxiliary audio connection pin. 6. The multifunctional line measuring instrument according to claim 4, characterized in that the position order of the two main light-emitting diodes electrically connected with the main audio connection pin is different from that of the main coaxial node electrically connected together. The position order of the two main light emitting diodes; the position order of the two auxiliary light emitting diodes electrically connected to the auxiliary audio connection pin is different from the position of the two auxiliary light emitting diodes electrically connected to the auxiliary coaxial node. 7. The multifunctional line measuring instrument according to claim 5, characterized in that the position order of the two main light-emitting diodes electrically connected with the main audio connection pin is different from that of the main coaxial node electrically connected together. The position order of the two main light emitting diodes; the position order of the two auxiliary light emitting diodes electrically connected to the auxiliary audio connection pin is different from the position of the two auxiliary light emitting diodes electrically connected to the auxiliary coaxial node. 8. The multifunctional line measuring instrument according to claim 4, characterized in that the order of the two main light-emitting diodes electrically connected to the main coaxial node is the third and the sixth respectively from top to bottom. , the order of the two auxiliary light-emitting diodes electrically connected to the auxiliary coaxial node is the third and sixth respectively from top to bottom; the two main light-emitting diodes electrically connected to the main audio connection pin The order from top to bottom is respectively the fourth and the fifth, and the order from top to bottom of the two auxiliary light-emitting diodes electrically connected together with the auxiliary audio connection pin is respectively the fourth and the fifth. 9. The multifunctional line measuring instrument according to claim 5, characterized in that the order of the two main light-emitting diodes electrically connected to the main coaxial node is the third and the sixth respectively from top to bottom , the order of the two auxiliary light-emitting diodes electrically connected to the auxiliary coaxial node is the third and sixth respectively from top to bottom; the two main light-emitting diodes electrically connected to the main audio connection pin The order from top to bottom is respectively the fourth and the fifth, and the order from top to bottom of the two auxiliary light-emitting diodes electrically connected together with the auxiliary audio connection pin is respectively the fourth and the fifth. 10. The multi-functional line measuring instrument according to claim 6 or 7, characterized in that the order of the two main light-emitting diodes electrically connected to the main coaxial node is the third and the first respectively from top to bottom. Six, the order of the two auxiliary light-emitting diodes electrically connected to the auxiliary coaxial node is the third and sixth respectively from top to bottom; the two main light-emitting diodes electrically connected to the main audio connection pin The order from top to bottom of the diodes is respectively the fourth and fifth, and the order from top to bottom of the two auxiliary light emitting diodes electrically connected to the auxiliary audio connection pin is respectively the fourth and the fifth.