CN105785214A - Simple cable testing instrument - Google Patents
Simple cable testing instrument Download PDFInfo
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- CN105785214A CN105785214A CN201610137100.8A CN201610137100A CN105785214A CN 105785214 A CN105785214 A CN 105785214A CN 201610137100 A CN201610137100 A CN 201610137100A CN 105785214 A CN105785214 A CN 105785214A
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- network cable
- multimeter
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- piece terminal
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
本发明涉及一种简易网线测试仪，由一块万用表、两个8片端子排和两个RJ45接口组成，所述的万用表的档位拨至二极管测量档位，其中一个8片端子排的8组对应端子通过连接线并联到一起并连接到一个RJ45接口上，另一个8片端子排连接到一个RJ45接口上，将两端带有RJ45插头的网线插入两个RJ45接口上，万用表的“+”和“—”极分别接入到未通过连接线并联的那个8片端子排的任意两个端口上。与现有技术相比，本发明缩短网线的测试时间，减少因为缺少网线测试仪导致的无法测量网线的实际困难，为设备调试和恢复运行争取宝贵的时间。简易网线测试仪制作相对简单，可以充分利用易于获取的元件，制作时间短、实际应用有效。
The invention relates to a simple network cable tester, which is composed of a multimeter, two 8-piece terminal blocks and two RJ45 interfaces. The corresponding terminals are connected together in parallel and connected to one RJ45 interface, and the other 8-piece terminal block is connected to one RJ45 interface. Insert the network cable with RJ45 plugs at both ends into the two RJ45 interfaces, and the "+" of the multimeter and "—" poles are respectively connected to any two ports of the 8-piece terminal block that are not connected in parallel through connecting wires. Compared with the prior art, the present invention shortens the test time of the network cable, reduces the practical difficulty of not being able to measure the network cable due to the lack of a network cable tester, and buys precious time for equipment debugging and recovery. The simple network cable tester is relatively simple to make, and can make full use of easily obtained components. The production time is short and the practical application is effective.
Description
技术领域 technical field
本发明涉及一种弱电测试装置，具体涉及一种利用万用表和端子排、RJ45接口制作的简易网线测试仪。 The invention relates to a weak current test device, in particular to a simple network cable tester made by using a multimeter, a terminal block and an RJ45 interface.
背景技术 Background technique
目前新建和改造的变电站多为智能变电站，设备之间的连接和通讯多采用网线，网线主要使用的是双绞线。双绞线采用了一对互相绝缘的金属导线互相绞合的方式来抵御一部分外界电磁波干扰。把两根绝缘的铜导线按一定密度互相绞在一起，可以降低信号干扰的程度，每一根导线在传输中辐射的电波会被另一根线上发出的电波抵消。"双绞线"的名字也是由此而来。双绞线一般由两根22-26号绝缘铜导线相互缠绕而成，实际使用时，双绞线是由多对双绞线一起包在一个绝缘电缆套管里的。典型的双绞线是四对的。 At present, most newly built and renovated substations are smart substations, and network cables are mostly used for connection and communication between devices, and twisted pair cables are mainly used for network cables. The twisted pair uses a pair of mutually insulated metal wires twisted together to resist part of the external electromagnetic wave interference. Twisting two insulated copper wires with each other at a certain density can reduce the degree of signal interference, and the electric waves radiated by each wire during transmission will be canceled by the electric waves emitted by the other wire. This is where the name "twisted pair" comes from. Twisted-pair wires are generally made of two 22-26 insulated copper wires wound with each other. In actual use, twisted-pair wires are wrapped in an insulated cable sleeve by multiple pairs of twisted-pair wires. A typical twisted pair is four pairs.
在网线制作好后，通过需要使用专用的网线测试仪进行测试网线是否导通。然而在变电站现场工作过程中，存在着突发网络数据中断而身边又没有携带网络测试仪的情况，这时，如何使用携带的工具箱里面的万用表和端子排、RJ45接口制作简单的网线测试仪，进行网线的测试，排除由于网线中断引起的网络故障，便是亟待解决的技术问题。 After the network cable is made, it is necessary to use a dedicated network cable tester to test whether the network cable is conductive. However, during the on-site work of the substation, there are sudden network data interruptions and there is no network tester around. At this time, how to use the multimeter, terminal block and RJ45 interface in the toolbox to make a simple network cable tester It is a technical problem to be solved urgently to test the network cable and eliminate the network failure caused by the interruption of the network cable.
发明内容 Contents of the invention
为解决在变电站现场工作过程中，存在着突发网络数据中断而身边又没有携带网络测试仪的情况，如何使用携带的工具箱里面的万用表和端子排、RJ45接口制作简单的网线测试仪，进行网线的测试，排除由于网线中断引起的网络故障的技术问题，本发明公开了一种简易网线测试仪，所采取的的技术方案是： In order to solve the situation that there is a sudden network data interruption during the on-site work of the substation and there is no network tester around, how to use the multimeter, terminal block and RJ45 interface in the toolbox to make a simple network cable tester, and carry out The test of the network cable eliminates the technical problem of network failure caused by the interruption of the network cable. The invention discloses a simple network cable tester. The technical solution adopted is:
一种简易网线测试仪，其特征在于：由一块万用表、两个8片端子排和两个RJ45接口组成，所述的万用表的档位拨至二极管测量档位，其中一个8片端子排的8组对应端子通过连接线并联到一起并连接到一个RJ45接口上，另一个8片端子排连接到一个RJ45接口上，将两端带有RJ45插头的网线插入两个RJ45接口上，万用表的“+”和“—”极分别接入到未通过连接线并联的那个8片端子排的任意两个端口上。 A simple network cable tester is characterized in that it consists of a multimeter, two 8-piece terminal blocks and two RJ45 interfaces, the gear of the multimeter is set to the diode measurement gear, and the 8-piece of one 8-piece terminal block is The corresponding terminals of the group are connected together in parallel and connected to one RJ45 interface, and the other 8 pieces of terminal blocks are connected to one RJ45 interface. Insert the network cable with RJ45 plugs at both ends into the two RJ45 interfaces, and the "+" of the multimeter " and "—" poles are respectively connected to any two ports of the 8-piece terminal block that are not connected in parallel through connecting wires.
进一步地，将所述的网线里面的八根独立的线芯分成4组，每两根线路为一组，分别对每组线路进行线路的通断测量，当万用表发出蜂鸣器声时，表示这组线路没有问题，反之存在问题。 Further, the eight independent wire cores in the network cable are divided into 4 groups, and every two lines are a group, and the on-off measurement of each group of lines is carried out respectively. When the multimeter emits a buzzer sound, it means There is no problem with this group of lines, otherwise there is a problem.
与现有技术相比，本发明缩短网线的测试时间，减少因为缺少网线测试仪导致的无法测量网线的实际困难，为设备调试和恢复运行争取宝贵的时间。简易网线测试仪制作相对简单，可以充分利用易于获取的元件，制作时间短、实际应用有效。 Compared with the prior art, the present invention shortens the test time of the network cable, reduces the practical difficulty of not being able to measure the network cable due to the lack of a network cable tester, and buys precious time for equipment debugging and recovery operation. The simple network cable tester is relatively simple to make, and can make full use of easily obtained components, with short production time and effective practical application.
附图说明 Description of drawings
图1是本发明的结构原理图。 Fig. 1 is a schematic diagram of the structure of the present invention.
具体实施方式 detailed description
参见图1，一种简易网线测试仪，由一块万用表13，两个8片端子排和两个RJ45接口组成，所述的万用表,1的档位拨至二极管测量档位，两个8片端子排分为第一8片端子排11，第二8片端子排12，两个RJ45接口分为第一RJ45接口14，第二RJ45接口15；第一8片端子排11的8组对应端子通过连接线并联到一起并连接到第一RJ45接口14上，第二8片端子排12连接到第二RJ45接口15上，将两端带有RJ45插头的网线100插入到第一RJ45接口14和第二RJ45接口15上。万用表的“+”和“—”极分别接入到第二8片端子排12的任意两个端口上。利用万用表可以检测电路的通断的特性，当万用表档位拨至二极管测量档位（蜂鸣档位）位置时，在闭合的回路里面，万用表发出蜂鸣声音，在断开的回路里面，万用表不发出声音。我们将网线里面的八根独立的线芯视为八路电力线路，分成4组，每两根线路为一组，分别对每组线路进行线路的通断测量，当万用表发出蜂鸣器声时，表示这组线路没有问题，反之，这组线路存在问题，依次对每组线路进行检查，排查网线存在的问题。检查网线头做的是否合格，是否存在网线头虚压现象，将网线头压实或剪掉重新做，当使用万用表进行网线测试过程，4组测试都没发出声音，这可能是检查网线不是同一根网线或网线遭到外界物理破坏。将所述的网线里面的八根独立的线芯分成4组，每两根线路为一组，分别对每组线路进行线路的通断测量，当万用表发出蜂鸣器声时，表示这组线路没有问题，反之存在问题。 Referring to Figure 1, a simple network cable tester is composed of a multimeter 13, two 8-piece terminal blocks and two RJ45 interfaces. The row is divided into the first 8-piece terminal block 11, the second 8-piece terminal block 12, and the two RJ45 interfaces are divided into the first RJ45 interface 14 and the second RJ45 interface 15; the 8 groups of corresponding terminals of the first 8-piece terminal block 11 pass through The connecting wires are connected together in parallel and connected to the first RJ45 interface 14, the second 8-piece terminal block 12 is connected to the second RJ45 interface 15, and the network cable 100 with RJ45 plugs at both ends is inserted into the first RJ45 interface 14 and the second RJ45 interface 14. Two RJ45 ports on 15. The "+" and "-" poles of the multimeter are respectively connected to any two ports of the second 8-piece terminal block 12 . The multimeter can be used to detect the on-off characteristics of the circuit. When the multimeter is turned to the diode measurement gear (buzzing gear), the multimeter will beep in the closed circuit, and the multimeter will beep in the disconnected circuit. No sound is produced. We regard the eight independent wire cores in the network cable as eight power lines, and divide them into 4 groups. Every two lines form a group, and measure the continuity of each group of lines. Indicates that there is no problem with this group of lines. Otherwise, there is a problem with this group of lines. Check each group of lines in turn to find out the problems with the network cables. Check whether the network cable head is qualified, whether there is any virtual pressure on the network cable head, compact or cut off the network cable head and do it again. When using a multimeter to test the network cable, there is no sound in the 4 sets of tests. This may be to check that the network cable is not the same. The root network cable or the network cable is physically damaged by the outside world. Divide the eight independent wire cores in the network cable into 4 groups, and every two lines form a group, and measure the on-off of each group of lines respectively. When the multimeter emits a buzzer, it means that this group of lines There is no problem, otherwise there is a problem.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610137100.8A CN105785214A (en) | 2016-03-10 | 2016-03-10 | Simple cable testing instrument |
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| CN201610137100.8A CN105785214A (en) | 2016-03-10 | 2016-03-10 | Simple cable testing instrument |
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| CN201610137100.8A Pending CN105785214A (en) | 2016-03-10 | 2016-03-10 | Simple cable testing instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535583A (en) * | 2018-03-23 | 2018-09-14 | 锡林郭勒职业学院 | A kind of General Electric's detection method |
| CN110531203A (en) * | 2019-06-17 | 2019-12-03 | 湖南中普技术股份有限公司 | A kind of socket line detection method and detection device based on network tester |
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2016
- 2016-03-10 CN CN201610137100.8A patent/CN105785214A/en active Pending
Patent Citations (7)
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| CN201365082Y (en) * | 2009-02-27 | 2009-12-16 | 中冶实久建设有限公司 | Multi-core cable corrective device |
| CN201449431U (en) * | 2009-04-27 | 2010-05-05 | 中国人民解放军第二炮兵工程学院 | Wireless tester for cable path |
| CN201583577U (en) * | 2009-12-30 | 2010-09-15 | 谢柏安 | Universal meter capable of testing twisted pairs |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108535583A (en) * | 2018-03-23 | 2018-09-14 | 锡林郭勒职业学院 | A kind of General Electric's detection method |
| CN110531203A (en) * | 2019-06-17 | 2019-12-03 | 湖南中普技术股份有限公司 | A kind of socket line detection method and detection device based on network tester |
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