CN109541373B - Quick twisted-pair cable on-off tester - Google Patents
Quick twisted-pair cable on-off tester Download PDFInfo
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- CN109541373B CN109541373B CN201811424381.0A CN201811424381A CN109541373B CN 109541373 B CN109541373 B CN 109541373B CN 201811424381 A CN201811424381 A CN 201811424381A CN 109541373 B CN109541373 B CN 109541373B
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- 238000012360 testing method Methods 0.000 claims abstract description 126
- 239000013078 crystal Substances 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims description 14
- 239000003086 colorant Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention provides a rapid twisted pair cable on-off tester, which is characterized by comprising: a proximal test device and a distal test device; the near-end testing device comprises a direct-current power supply, a first crystal head and a near-end connecting wire; the remote testing device comprises a second crystal head, a remote connecting wire, four resistors and four light emitting diodes, wherein the near-end connecting wire comprises eight near-end wires and is used for being connected to the first crystal head and the positive electrode and the negative electrode of a direct-current power supply, the remote connecting wire comprises four far-end wire groups which are sequentially connected with the resistors and the light emitting diodes in series, so that four on-off testing links are formed, two ends of each on-off testing link are connected to the second crystal head, and accordingly when two ends of a twisted pair cable to be tested are respectively connected to the near-end testing device and the far-end testing device, four tributary circuit loops are formed, and then the on-off state of the twisted pair cable is indicated through the brightness of the light emitting diode in each on-off testing link.
Description
Technical Field
The invention relates to a rapid twisted pair cable on-off tester.
Background
The twisted pair cable is a kind of general wiring made up by winding two mutually insulated wires together according to a certain specification, and belongs to the transmission medium of information communication network, and is usually used for comprehensive wiring of computer network.
In the wiring process of a computer network, a tester needs to test the on-off condition of each twisted pair cable, so that the communication quality of the computer network is ensured, and a common measuring tool is a twisted pair cable on-off tester.
At present, the common twisted pair cable on-off tester in the market adopts the common clock sequence to light in turn to indicate the on-off condition of twisted pair cable, and the time that the tester required to test a twisted pair cable is as long as four to five seconds, and the test efficiency is relatively poor. In addition, the on-off tester generally includes a near-end device and a far-end device, two testers are needed to be respectively located at two ends of the twisted pair cable to be tested in the use process, the on-off condition of the twisted pair cable to be tested can be measured only by paying attention to the measurement condition of the on-off tester and feeding back the on-off condition of the twisted pair cable to be tested to each other, if the length of the twisted pair cable is too long, feedback information between the two testers is difficult or untimely (for example, when two ends of the twisted pair cable to be tested are located on different floors), so that the on-off condition of the twisted pair cable to be tested is judged by the testers to be wrong, the on-off test result is inaccurate, and the working efficiency and the wiring quality are affected.
Disclosure of Invention
In order to solve the problems, the invention adopts the following technical scheme:
the invention provides a fast twisted pair cable on-off tester, which is used for testing the on-off of twisted pair cables and is characterized by comprising the following components: a proximal test device and a distal test device; the near-end testing device comprises a direct-current power supply, a first crystal head and a near-end connecting wire; the remote testing device comprises a second crystal head, a remote connecting wire, four resistors and four light emitting diodes, wherein the near-end connecting wire comprises eight near-end terminal wires, one end of each near-end terminal wire is connected to the first crystal head, the other ends of four of the near-end terminal wires are connected to the positive electrode of a direct-current power supply, the other ends of the other four of the near-end terminal wires are connected to the negative electrode of the direct-current power supply, the remote connecting wire comprises four far-end terminal wire groups, each far-end terminal wire group comprises two corresponding far-end terminal wires, one resistor and one light emitting diode are sequentially connected in series between the far-end terminal wires in the far-end terminal wire groups, so that four on-off testing links are formed, two ends of each on-off testing link are connected to the second crystal head, and when two ends of a twisted pair cable to be tested are respectively connected to the near-end testing device and the far-end testing device, the direct-current power supply, the near-end connecting wire, the twisted pair cable and the on-off testing links are sequentially connected to form four branch circuit loops, and the on-off state of the twisted pair cable is further indicated through the light emitting diodes in each on-off testing link.
The invention provides a rapid twisted pair cable on-off tester, which can also have the characteristic that a switching device is connected in series between the positive pole of a direct current power supply in a near-end testing device and a near-end connecting wire, and the switching device is used for controlling the on-off of a branch circuit loop in the testing process so as to control the on-off of the rapid twisted pair cable on-off tester.
The invention provides a rapid twisted pair cable on-off tester which can be characterized in that the near-end testing device further comprises a near-end shielding wire and a first shielding diode, one end of the near-end shielding wire is connected to the positive electrode of a direct current power supply, the other end of the near-end shielding wire is connected to a first crystal head, a first shielding diode is connected in series between the negative electrode of the direct current power supply and the near-end connecting wire, the far-end testing device further comprises a far-end shielding wire, a shielding resistor and a second shielding diode, the far-end shielding wire is sequentially connected in series with the shielding resistor and the shielding light emitting diode, so that a shielding testing link is formed, the shielding testing link is connected with the on-off testing link in parallel, one end of the shielding testing link is connected to the second crystal head, and the other end of the shielding testing link is connected with four second shielding diodes, and the second shielding diodes are connected in parallel and are further connected to each on-off testing link.
The invention provides a rapid twisted pair cable on-off tester which can be characterized in that each near-terminal wire is connected with a first crystal head through TIA-568B standard, the colors of the near-terminal wires connected with the positive electrode of a direct current power supply are respectively white blue, white orange, white green and white brown, and the colors of the near-terminal wires connected with the negative electrode of the direct current power supply are respectively blue, orange, green and brown.
The invention provides a rapid twisted pair cable on-off tester which can also be characterized in that each far terminal wire is connected with a second crystal head through TIA-568B standard, and the colors of the corresponding far terminal wires are respectively white blue and blue, white orange and orange, white green and white brown and brown.
The invention provides a rapid twisted pair cable on-off tester which can also be characterized in that the first crystal head and the second crystal head are RJ45 crystal heads.
The actions and effects of the invention
According to the rapid twisted pair cable on-off tester, the twisted pair cable has the electrical transmission property, and the two ends of the twisted pair cable to be tested are respectively connected with the near-end testing device and the far-end testing device in the testing process, so that the near-end testing device, the twisted pair cable and the far-end testing device can form four branch circuit loops in the testing process, and when a tester opens the switching device to enable the branch circuit loops to be electrified, the tester can judge the on-off condition of the twisted pair cable according to the brightness of the light emitting diode. Because the transmission speed of electricity is close to the speed of light in theory, consequently the circuit return circuit can switch on in the twinkling of an eye when the testers opens switching device, and then accomplishes the test in the twinkling of an eye, compares very big saving test time with the break-make tester that carries out the test of lighting one by one with the clock generator, has improved work efficiency.
In addition, as the light emitting diodes are arranged on the far-end testing device, the near-end testing device is only used for providing power, so that a tester can judge the on-off condition of the twisted pair cable only by observing the testing information of the far-end testing device in the testing process, the testing error caused by overlong length of the twisted pair cable or too far distance of the tester is avoided, the testing precision of the rapid twisted pair cable on-off tester is improved, and the use is more convenient.
Drawings
FIG. 1 is a schematic view of the proximal test apparatus according to embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of the remote testing device according to embodiment 1 of the present invention;
FIG. 3 is a schematic circuit diagram of a fast twisted pair cable on-off tester of embodiment 1 of the present invention;
FIG. 4 is a schematic diagram of the proximal test apparatus according to embodiment 2 of the present invention;
FIG. 5 is a schematic diagram of a remote testing apparatus according to embodiment 2 of the present invention;
fig. 6 is a schematic circuit diagram of a rapid twisted pair cable on-off tester according to embodiment 2 of the present invention;
fig. 7 is a schematic structural diagram of a rapid twisted pair cable on-off tester according to embodiment 2 of the present invention.
Detailed Description
In order to make the technical means, creation characteristics, achievement purposes and effects of the invention easy to understand, the rapid twisted pair cable on-off tester of the invention is specifically described below with reference to the accompanying drawings.
Example 1 ]
Fig. 1 is a schematic structural view of a proximal test apparatus according to embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of a remote testing device according to embodiment 1 of the present invention.
Fig. 3 is a schematic circuit diagram of the rapid twisted pair cable on-off tester of embodiment 1 of the present invention.
As shown in fig. 1 to 3, the rapid twisted pair cable on-off tester 100 of embodiment 1 includes a near-end testing device 10 and a far-end testing device 20.
The proximal test apparatus 10 includes a dc power source 101, a first crystal head 102, a proximal connection line 103, and a switching device 104.
The first crystal head 102 is an RJ45 crystal head.
The proximal connection wire 103 comprises eight proximal terminal wires, each of which is connected with the dc power supply 101 and the first crystal head 102 by TIA-568B standard, the colors of the proximal terminal wires are respectively white blue, white orange, white green, white brown, blue, orange, green and brown, one end of each of the proximal terminal wires is connected to the first crystal head 102, the other ends of the proximal terminal wires of white blue, white orange, white green and white brown are connected in parallel to form a first connection end, and then connected to the positive electrode of the dc power supply 101, a switching device 104 is further connected in series between the first connection end and the positive electrode of the dc power supply 101, and the other ends of the proximal terminal wires of blue, orange, green and brown are connected to the negative electrode of the dc power supply 101.
The remote testing device 20 includes a second crystal head 201, a remote connection 202, four resistors 203, and four light emitting diodes 204.
The second crystal head 201 is an RJ45 crystal head.
The distal connection wire 202 comprises four distal sub-wire sets, each distal sub-wire set comprising two corresponding distal sub-wires, each distal sub-wire being connected to the second crystal head by TIA-568B standard, the corresponding distal sub-wires being respectively white blue and blue, white orange and orange, white green and green, and white brown and brown.
A resistor 203 and a light emitting diode 204 are sequentially connected in series between the far terminal wires in the far terminal wire set, so as to form four on-off test links, and two ends of each on-off test link are connected to the second crystal head 201.
The connection mode of each on-off test link is the same, and the following specific connection modes of the on-off test links are illustrated by taking a white-blue far-end sub-line group and a blue far-end sub-line group as examples:
one end of the far-end blue sub-line is connected to the second crystal head 201, the other end is connected in series with the resistor 203 and is connected to one pin of the light emitting diode 204, one end of the far-end blue sub-line is connected to the other pin of the light emitting diode 204, and the other end is connected to the crystal head 201, so that an on-off test link is formed.
The following describes a specific operation of the rapid twisted pair cable on-off tester 100 with reference to the drawings:
firstly, two ends of a twisted pair cable to be tested are respectively connected into a near-end testing device 10 and a far-end testing device 20, so that a direct current power supply 101, a near-end connecting wire 102, the twisted pair cable and an on-off testing link are sequentially connected to form four branch circuit loops, then a switching device 104 is opened to enable the direct current circuit loops to be electrified, the on-off state of the twisted pair cable is indicated according to the brightness of a light emitting diode 204 in each on-off testing link, when the light emitting diode 204 emits light, the on-off testing link corresponding to the light emitting diode 204 is indicated to be normal, namely, the corresponding circuit in the twisted pair cable to be tested is indicated to be in a channel state, and when the light emitting diode 204 does not emit light, the on-off testing link corresponding to the light emitting diode 204 is indicated to be in an off state.
Example 2 ]
Fig. 4 is a schematic structural view of a proximal test apparatus according to embodiment 2 of the present invention.
Fig. 5 is a schematic structural diagram of a remote testing device according to embodiment 2 of the present invention.
Fig. 6 is a schematic circuit diagram of a fast twisted pair cable on-off tester according to embodiment 2 of the present invention.
Fig. 7 is a schematic structural diagram of a rapid twisted pair cable on-off tester according to embodiment 2 of the present invention.
In this embodiment 2, the same structures, methods, and conditions as in embodiment 1 are given the same reference numerals, and the same description is omitted.
In embodiment 2, the fast twisted pair cable on-off tester 100 operates in the same manner as in embodiment 1, but has a different structure, specifically:
the proximal test device 10 further includes a proximal shielding wire 105 and a first shielding diode 106, one end of the proximal shielding wire 105 is connected between the first shunt terminal and the switching device 104, the other end is connected to the first crystal head 102, and the other ends of the blue, orange, green and brown proximal terminal wires are connected in parallel to form a second shunt terminal, and further connected to the negative electrode of the dc power supply 101, and the first shielding diode 106 is further connected in series between the second shunt terminal and the negative electrode of the dc power supply 101.
The remote testing device 20 also has a shielded test link therein, which includes a remote shielded wire 205, a shielded resistor 206, and a shielded light emitting diode 207 connected in sequence.
The following describes a specific connection manner of the shield test link:
one end of the distal shielding wire 205 is connected to the second crystal head 201 and is sequentially connected in series with a shielding resistor 206 and a shielding light emitting diode 207, and the other end of the distal shielding wire 205 is connected to four second shielding diodes 208 connected in parallel and is connected to each on-off test link, respectively, so that the shielding test links are connected in parallel with the on-off test links.
In use, the DC power supply 101, the proximal shielded wire 105, the twisted pair cable, the shielded test link, and the on-off test link form a shielded circuit loop.
Example operation and Effect
According to the rapid twisted pair cable on-off tester, the twisted pair cable has the electrical transmission property, and the two ends of the twisted pair cable to be tested are respectively connected with the near-end testing device and the far-end testing device in the testing process, so that the near-end testing device, the twisted pair cable and the far-end testing device can form four branch circuit loops in the testing process, and when a tester opens the switching device to enable the branch circuit loops to be electrified, the tester can judge the on-off condition of the twisted pair cable according to the brightness of the light emitting diode. Because the transmission speed of electricity is close to the speed of light in theory, consequently the circuit return circuit can switch on in the twinkling of an eye when the testers opens switching device, and then accomplishes the test in the twinkling of an eye, compares very big saving test time with the break-make tester that carries out the test of lighting one by one with the clock generator, has improved work efficiency.
In addition, as the light emitting diodes are arranged on the far-end testing device, the near-end testing device is only used for providing power, so that a tester can judge the on-off condition of the twisted pair cable only by observing the testing information of the far-end testing device in the testing process, the testing error caused by overlong length of the twisted pair cable or too far distance of the tester is avoided, the testing precision of the rapid twisted pair cable on-off tester is improved, and the use is more convenient.
Because near-end testing arrangement still includes near-end shielded wire and first shielding diode, far-end testing arrangement still includes far-end shielded wire, shielding resistance and shielding emitting diode to form the shielding test link, and then formed a shielding circuit return circuit, consequently when shielding circuit return circuit is circular telegram in the test process, the stability of electric current in the quick twisted pair cable break-make tester can be judged according to shielding emitting diode's light and shade to the tester, thereby make the security of quick twisted pair cable break-make tester higher.
Because each near terminal wire is connected with the first crystal head through TIA-568B standard, each far terminal wire is connected with the second crystal head through TIA-568B standard, therefore, in the installation and use process of the rapid twisted pair cable on-off tester, a tester can be clearly connected with a circuit according to the line color of each sub-wire, and the installation and use of the rapid twisted pair cable on-off tester are more convenient.
Because the first crystal head and the second crystal head are RJ45 crystal heads, the RJ45 crystal heads have good conduction performance, and therefore, the electrical continuity between all sub-lines can be realized more rapidly in the test process, the test speed is higher, and the test result is more accurate.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention without requiring creative effort by one of ordinary skill in the art. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
For example, in the above embodiment, the near terminal lines are all connected with the first crystal head through TIA-568B standard, and the far terminal lines are all connected with the second crystal head through TIA-568B standard, and in the rapid twisted pair cable on-off tester provided by the invention, each sub-line can be connected through TIA-568A standard, so as to adapt to different connection requirements.
Claims (6)
1. The utility model provides a quick twisted pair cable break-make tester for test twisted pair cable's break-make, its characterized in that includes:
a proximal test device and a distal test device;
the near-end testing device comprises a direct-current power supply, a first crystal head and a near-end connecting wire;
the remote testing device comprises a second crystal head, a remote connecting wire, four resistors and four light emitting diodes,
wherein the near-end connecting wire comprises eight near-end terminal wires, one end of each near-end terminal wire is connected to the first crystal head, the other end of four near-end terminal wires is connected to the positive electrode of the direct-current power supply, the other end of the other four near-end terminal wires is connected to the negative electrode of the direct-current power supply,
the remote connection line comprises four groups of remote terminal line groups, each remote terminal line group comprises two corresponding remote terminal lines, each remote terminal line in each remote terminal line group is sequentially connected with one resistor and one light emitting diode in series, so that four on-off test links are formed, two ends of each on-off test link are connected to the second crystal head, and accordingly when two ends of a twisted pair cable to be tested are respectively connected with the near-end test device and the remote test device, the direct current power supply, the near-end connection line, the twisted pair cable and the on-off test links are sequentially connected to form four tributary circuit loops, and then the on-off state of the twisted pair cable is indicated through the brightness of the light emitting diode in each on-off test link.
2. The rapid twisted pair cable on-off tester as set forth in claim 1, wherein:
and a switching device is also connected in series between the positive electrode of the direct current power supply and the near-end connecting wire in the near-end testing device, and the switching device is used for controlling the on-off of the tributary circuit loop in the testing process, so as to control the on-off of the rapid twisted pair cable on-off tester.
3. The rapid twisted pair cable on-off tester as set forth in claim 1, wherein:
wherein the near-end testing device also comprises a near-end shielding wire and a first shielding diode, one end of the near-end shielding wire is connected to the positive electrode of the direct-current power supply, the other end is connected to the first crystal head, the first shielding diode is connected in series between the negative electrode of the direct-current power supply and the near-end connecting wire,
the remote testing device also comprises a remote shielding wire, a shielding resistor and a shielding light-emitting diode, wherein the remote shielding wire is sequentially connected with the shielding resistor and the shielding light-emitting diode in series, thereby forming a shielding testing link,
the shielding test link is connected with the on-off test link in parallel, one end of the shielding test link is connected to the second crystal head, the other end of the shielding test link is connected with four second shielding diodes, and the second shielding diodes are connected in parallel and further connected to each on-off test link.
4. A rapid twisted pair cable on-off tester according to any one of claims 1 to 3, wherein:
wherein each near-terminal wire is connected with the first crystal head through TIA-568B standard,
the colors of the near-terminal wires connected with the positive electrode of the direct-current power supply are respectively white blue, white orange, white green and white brown,
the colors of the near-terminal wires connected with the negative electrode of the direct-current power supply are blue, orange, green and brown respectively.
5. A rapid twisted pair cable on-off tester according to any one of claims 1 to 3, wherein:
wherein each far terminal wire is connected with the second crystal head through TIA-568B standard,
the colors of the corresponding distal sub-lines are respectively white blue and blue, white orange and orange, white green and green, and white brown and brown.
6. A rapid twisted pair cable on-off tester according to any one of claims 1 to 3, wherein:
the first crystal head and the second crystal head are RJ45 crystal heads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811424381.0A CN109541373B (en) | 2018-11-27 | 2018-11-27 | Quick twisted-pair cable on-off tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811424381.0A CN109541373B (en) | 2018-11-27 | 2018-11-27 | Quick twisted-pair cable on-off tester |
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| Publication Number | Publication Date |
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| CN109541373A CN109541373A (en) | 2019-03-29 |
| CN109541373B true CN109541373B (en) | 2023-12-12 |
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| CN201811424381.0A Active CN109541373B (en) | 2018-11-27 | 2018-11-27 | Quick twisted-pair cable on-off tester |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112924893B (en) * | 2020-03-27 | 2023-02-28 | 北京中纺精业机电设备有限公司 | Communication line detection method and communication line detection device |
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| CN109541373A (en) | 2019-03-29 |
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Effective date of registration: 20201010 Address after: 201411, Shanghai, Fengxian District hung highway 3098 Applicant after: SHANGHAI TECHNICAL INSTITUTE OF ELECTRONICS & INFORMATION Address before: 201411 Shanghai Fengxian District Wahong Highway 3098 Technology Center S211 Applicant before: Peng Xuehai Applicant before: Jia Lu Applicant before: Li Ming Applicant before: SHANGHAI TECHNICAL INSTITUTE OF ELECTRONICS & INFORMATION |
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