CN202204898U - Cable on-off detection device - Google Patents

Cable on-off detection device Download PDF

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Publication number
CN202204898U
CN202204898U CN2011203196720U CN201120319672U CN202204898U CN 202204898 U CN202204898 U CN 202204898U CN 2011203196720 U CN2011203196720 U CN 2011203196720U CN 201120319672 U CN201120319672 U CN 201120319672U CN 202204898 U CN202204898 U CN 202204898U
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CN
China
Prior art keywords
emitting diode
power supply
detection device
resistance
light emitting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011203196720U
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Chinese (zh)
Inventor
曹钟林
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Individual
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Individual
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Publication date
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Priority to CN2011203196720U priority Critical patent/CN202204898U/en
Application granted granted Critical
Publication of CN202204898U publication Critical patent/CN202204898U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a cable on-off detection device. The cable on-off detection device comprises a power supply and seven test channels, wherein each test channel consists of a resistor and a light-emitting diode which are in series connected; the anode of the power supply is respectively connected with one end of the resistor in each test channel; the other end of the resistor is connected with the input end of the light-emitting diode; the output end of the light-emitting diode is connected with one of eight core wires to be detected; and the cathode of the power supply is connected with the remaining one core wire of the eight core wires to be detected. The on and off states of a core wire can be judged according to the on and off states of the light-emitting diode. The cable on-off detection device is easy to operate and convenient to use.

Description

A kind of netting twine switching detection device
Technical field
The utility model relates to a kind of netting twine on-off system.
Background technology
The netting twine on off test is the common means that network connects, the general tester that adopts special use.But the operation of detector is comparatively complicated.Provide a kind of netting twine switching detection device of simple operations to have practicality.
Summary of the invention
The utility model technical matters to be solved is to the deficiency of above-mentioned background technology, and a kind of netting twine switching detection device is provided.
The utility model adopts following technical scheme for realizing the foregoing invention purpose:
A kind of netting twine switching detection device comprises power supply, seven TCH test channels, and wherein each TCH test channel becomes with a light emitting diode series by a resistance;
Wherein: the positive pole of power supply is connected with an end of resistance in each TCH test channel respectively; The other end of resistance is connected with the input end of light emitting diode; One in the output terminal of light emitting diode and 8 heart yearns to be detected is connected, and remaining that heart yearn is connected in the negative pole of power supply and 8 heart yearns to be detected.
The utility model adopts technique scheme, has following beneficial effect: simple in structure.According to the detection needs, adjustment inserts the resistance number of testing circuit flexibly, can detect the break-make of eight heart yearns simultaneously, the convenient use.
Description of drawings
Fig. 1 is the synoptic diagram of the related netting twine switching detection device of the utility model.
Embodiment
Be elaborated below in conjunction with the technical scheme of accompanying drawing to the utility model:
Netting twine switching detection device as shown in Figure 1 comprises power supply, seven TCH test channels.Each TCH test channel becomes with a light emitting diode series by a resistance; The positive pole of power supply is connected with an end of resistance in each TCH test channel respectively; The other end of resistance is connected with the input end of light emitting diode; One in the output terminal of light emitting diode and 8 heart yearns to be detected is connected, and remaining that heart yearn is connected in the negative pole of power supply and 8 heart yearns to be detected.
An end that has the netting twine of RJ45 connector is added on the test port 1,1~No. 8 pin short circuit of test port 1.The other end that has the netting twine of RJ45 connector is added on the test port 2, and the 8th pin on the test port 2 is as the common port of test loop, and links to each other with battery E negative pole.The input end of each resistance and the light emitting diode corresponding with it is connected, and the input end of 7 resistance also connects the back and is connected with positive source, and the output terminal of light emitting diode is connected with heart yearn to be detected, and any one in power cathode and eight heart yearns is connected.
Battery E positive pole is through current-limiting resistance R1~R7, netting twine break-make indication light emitting diode D1~D7 and pass through corresponding tested 1~No. 7 heart yearn formation test access, can be judged the break-make of 1~No. 8 heart yearn by the luminous situation of D1~D7:
(1) D1~D7 lamp is bright entirely, then shows the heart yearn all-pass 1~No. 8;
(2) D1~D7 lamp does not work entirely, shows that then No. 8 heart yearns are disconnected;
(3) at least one is bright in D1~D7 lamp, shows that bright lamp connected in D1~D7 lamp heart yearn and No. 8 heart yearns are logical.

Claims (1)

1. netting twine switching detection device, it is characterized in that: comprise power supply, seven TCH test channels, wherein each TCH test channel becomes with a light emitting diode series by a resistance;
Wherein: the positive pole of power supply is connected with an end of resistance in each TCH test channel respectively; The other end of resistance is connected with the input end of light emitting diode; One in the output terminal of light emitting diode and 8 heart yearns to be detected is connected, and remaining that heart yearn is connected in the negative pole of power supply and 8 heart yearns to be detected.
CN2011203196720U 2011-08-30 2011-08-30 Cable on-off detection device Expired - Fee Related CN202204898U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203196720U CN202204898U (en) 2011-08-30 2011-08-30 Cable on-off detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203196720U CN202204898U (en) 2011-08-30 2011-08-30 Cable on-off detection device

Publications (1)

Publication Number Publication Date
CN202204898U true CN202204898U (en) 2012-04-25

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ID=45969016

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203196720U Expired - Fee Related CN202204898U (en) 2011-08-30 2011-08-30 Cable on-off detection device

Country Status (1)

Country Link
CN (1) CN202204898U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103048580A (en) * 2012-12-19 2013-04-17 美律电子(惠州)有限公司 On-off detection jig for earphone circuit
CN103592555A (en) * 2012-08-16 2014-02-19 神讯电脑(昆山)有限公司 Network interface monomer test equipment
CN105785214A (en) * 2016-03-10 2016-07-20 国网山东省电力公司莱州市供电公司 Simple cable testing instrument

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103592555A (en) * 2012-08-16 2014-02-19 神讯电脑(昆山)有限公司 Network interface monomer test equipment
CN103048580A (en) * 2012-12-19 2013-04-17 美律电子(惠州)有限公司 On-off detection jig for earphone circuit
CN105785214A (en) * 2016-03-10 2016-07-20 国网山东省电力公司莱州市供电公司 Simple cable testing instrument

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120425

Termination date: 20120830