US20060202703A1 - Apparatus for testing electric cables - Google Patents
Apparatus for testing electric cables Download PDFInfo
- Publication number
- US20060202703A1 US20060202703A1 US11/370,791 US37079106A US2006202703A1 US 20060202703 A1 US20060202703 A1 US 20060202703A1 US 37079106 A US37079106 A US 37079106A US 2006202703 A1 US2006202703 A1 US 2006202703A1
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- Prior art keywords
- pin
- wires
- circuit indicator
- interface
- cable
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Classifications
-
- 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
- G01R31/54—Testing for continuity
-
- 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
-
- 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
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- 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
Definitions
- the present invention relates generally to test equipment and more specifically to an apparatus for testing cables used in electronics.
- test apparatuses have been developed for making checks of cable for shorts and opens.
- One such apparatus is disclosed in CN. Pat. No. 00200774.6, wherein a cable having connectors at opposite ends is checked for faults.
- the testing apparatus includes two interfaces for receiving the connectors of the cable being tested, a switch array, and a plurality of indicators for indicating the condition of the cable.
- Such a test apparatus needs many switches and indicators and is therefore a complex method of testing.
- a cable test apparatus includes a power supply terminal, an open circuit indicator with an anode connected to the power supply terminal, a short circuit indicator, a first interface, a second interface, and a switch.
- the first interface and the second interface have a plurality of pins thereon.
- a first pin is connected to a cathode of the open circuit indicator
- a second pin is connected to an anode of the short circuit indicator
- a third pin is grounded, the other pins are shorted.
- the pins of the second interface are shorted as well. Therefore all wires of the cable are connected in series, even wires located at one side of the short circuit indicator, and odd wires are located at the other side of the short circuit indicator.
- the switch connects the second pin and a fourth pin; in an open circuit test, the switch connects the fourth pin and the cathode of the short circuit indicator and shorts the open circuit indicator.
- the testing apparatus of the present invention only needs a switch, an open circuit indicator, and a short circuit indicator to indicate the state of the cables. It is of advantage that the cable testing apparatus is simple to manufacture.
- FIG. 1 is an isometric view of a cable testing apparatus in accordance with a preferred embodiment of the present invention
- FIG. 2 is an isometric view of the testing apparatus of FIG. 1 , together with a cable to be tested;
- FIG. 3 is circuit diagram of the testing apparatus of FIG. 1 ;
- FIG. 4 is a circuit diagram of the testing apparatus of FIG. 1 , together with a cable to be tested;
- FIG. 5 is a circuit diagram of a testing apparatus in accordance with another preferred embodiment of the present invention.
- FIG. 6 is a circuit diagram of the testing apparatus of FIG. 5 , together with the cable to be tested.
- FIG. 1 is an isometric view of a cable testing apparatus in accordance with a preferred embodiment of the present invention.
- the testing apparatus includes a first interface 10 , a second interface 20 , a double-pole double-throw (DPDT) switch 30 , an open circuit indicator 40 , and a short circuit indicator 50 all mounted on a plate 3 .
- the open circuit indicator 40 and the short circuit indicator 50 are light emitting diode (LED) indicators or some other kind of indicators.
- the first interface 10 and the second interface 20 comprise a plurality of pins.
- FIG. 2 is an isometric view of the testing apparatus in accordance with the preferred embodiment of the present invention, together with a cable 100 to be tested.
- the cable 100 has a number of wires that are connected between a first connector 101 and a second connector 102 .
- the first connector 101 can be plugged into the first interface 10
- the second connector 102 can be plugged into the second interface 20 .
- FIG. 3 is a circuit diagram of the testing apparatus in accordance with the preferred embodiment of the present invention.
- a power supply terminal Vcc is connected to an anode of the open circuit indicator 40 via a resistor R 1
- a cathode of the open circuit indicator 40 is connected to a first pin a 1 ( FIG. 4 ) of the first interface 10
- a second pin a 39 is connected to an anode of the short circuit indicator 50
- a third pin a 40 is grounded.
- a first contact A of the DPDT switch 30 is connected to the anode of the open circuit indicator 40
- a second contact B of the DPDT switch 30 is connected to the cathode of the open circuit indicator 40 .
- a third contact C of the DPDT switch 30 is connected to a fourth pin a 2 of the first interface 10
- a fourth contact D of the DPDT switch 30 is connected to the second pin a 39
- a fifth contact E of the DPDT switch 30 is connected to the cathode of the short circuit indicator 50 .
- Every two adjacent odd pins of the first interface 10 are connected except the first pin a 1 , the second pin a 39 , the third pin a 40 , and the fourth pin a 2 , i.e. pins a 3 and a 5 are electronically connected, pins a 7 and a 9 are electronically connected, . . .
- pins a 35 and a 37 are electronically connected; every two adjacent even pins of the first interface 10 are electronically connected, i.e. pins a 4 and a 6 are electronically connected, pins a 8 and alO are electronically connected, . . . pins a 36 and a 38 are electronically connected. Every two adjacent odd pins of the second interface 20 are electronically connected, i.e. pins b 1 and b 3 are electronically connected, pins b 5 and b 7 are electronically connected, . . . pins b 37 and b 39 are electronically connected; every two adjacent even pins are electronically connected, i.e. pins b 2 and b 4 are electronically connected, pins b 6 and b 8 are electronically connected, . . . pins b 38 and b 40 are electronically connected.
- the pins of the first interface 10 and the second interface 20 are connected via the wires of the cable 100 , that is, pins a 1 and b 1 , pins a 2 and b 2 , . . . pins a 40 and b 40 are all connected to each other.
- the odd pins of the first interface 10 and the second interface 20 are connected in sequence, that is, the pin a 1 is connected to the pin b 1 , the pin b 1 is connected with the pin b 3 , the pin b 3 is connected to the pin a 3 and so on, via the cable 100 , and between the third contact C and the ground, the even pins of the first interface 10 and the second interface 20 are connected in sequence, that is, the pin a 2 is connected to the pin b 2 , the pin b 2 is connected with the pin b 4 , the pin b 4 is connected to the pin a 4 and so on, via the cable 100 , in this way, when the appropriate contacts of the DPDT are closed a test circuit is formed.
- the cable 100 In testing the cable 100 , the cable 100 is mounted to the testing apparatus with the first connector 101 plugged in to the first interface 10 and the second connector 102 plugged into the second interface 20 .
- the contacts C and D are closed, the contacts A and B are open, and the contacts C and E are open, thus the open circuit indicator 40 is included in the testing circuit, and the short circuit indicator 50 is not.
- the test circuit If the cable 100 has one or more opens or bad connections in the wires, the test circuit will be open as well, and the open circuit indicator 40 remains unlit. If there are no opens in the cable 100 , the test circuit will be complete and the open circuit indicator 40 will be lit to indicate the cable 100 is normal.
- the odd wire is the wire between the odd pin of the first interface 10 and the corresponding odd pin of the second interface 20 .
- the even wire is the wire between the even pin of the first interface 10 and the corresponding even pin of the second interface 20 .
- the short circuit indicator 50 is included in the testing circuit, and the open circuit indicator 40 is shorted. If there is a short between two adjacent wires, the short circuit indicator 50 will be shorted as well and remain unlit. If there are no shorts in the cable 100 , the short circuit indicator 50 will light to indicate the cable 100 is normal.
- FIG. 5 Another embodiment of the testing apparatus is shown in FIG. 5 .
- the first pin, second pin, third pin, and fourth pin are the pins a 3 , a 39 , a 40 , and a 2 of the first interface 100 respectively.
- the circuit diagram using the testing apparatus to test the cable 100 is shown in FIG. 6 .
- the pin a 1 is connected with the pin a 5 .
- the present embodiment can also test wire faults, such as open wires and shorts between wires.
- the first pin, the second pin, the third pin, and the fourth pin can be other pins of the first interface 10 , all the odd wires are at one end of the short circuit indicator 50 , and all the even wires are at the other end of the short circuit indicator 50 , when there is a short between two adjacent wires, the short circuit indicator 50 will indicate a fault in the cable.
- the DPDT switch can be replaced by other switches, for example, the switch between the first contact A and the second contact B can be a single-pole single-throw (SPST) switch, the switch among the third contact C and the fourth contact D and the fifth contact E can be a single-pole double throw (SPDT) switch.
- SPST single-pole single-throw
- SPDT single-pole double throw
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Description
- 1. Technical Field
- The present invention relates generally to test equipment and more specifically to an apparatus for testing cables used in electronics.
- 2. Background
- During the installation of and interconnection of various equipment in computers, it is necessary to make frequent wire checks verifying the integrity of connections made by means of cables utilized to interconnect various equipment. It is necessary that the cable be checked for a number of wire faults, such as shorts and opens. A number of test apparatuses have been developed for making checks of cable for shorts and opens. One such apparatus is disclosed in CN. Pat. No. 00200774.6, wherein a cable having connectors at opposite ends is checked for faults. The testing apparatus includes two interfaces for receiving the connectors of the cable being tested, a switch array, and a plurality of indicators for indicating the condition of the cable. Such a test apparatus, however, needs many switches and indicators and is therefore a complex method of testing.
- It is therefore apparent that a need exits to provide a less complex apparatus for testing the cable with less switches and less indicators.
- A cable test apparatus includes a power supply terminal, an open circuit indicator with an anode connected to the power supply terminal, a short circuit indicator, a first interface, a second interface, and a switch. The first interface and the second interface have a plurality of pins thereon. In the first interface, a first pin is connected to a cathode of the open circuit indicator, a second pin is connected to an anode of the short circuit indicator, a third pin is grounded, the other pins are shorted. The pins of the second interface are shorted as well. Therefore all wires of the cable are connected in series, even wires located at one side of the short circuit indicator, and odd wires are located at the other side of the short circuit indicator. In a short circuit test, the switch connects the second pin and a fourth pin; in an open circuit test, the switch connects the fourth pin and the cathode of the short circuit indicator and shorts the open circuit indicator.
- The testing apparatus of the present invention only needs a switch, an open circuit indicator, and a short circuit indicator to indicate the state of the cables. It is of advantage that the cable testing apparatus is simple to manufacture.
- Other advantages and novel features will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which:
-
FIG. 1 is an isometric view of a cable testing apparatus in accordance with a preferred embodiment of the present invention; -
FIG. 2 is an isometric view of the testing apparatus ofFIG. 1 , together with a cable to be tested; -
FIG. 3 is circuit diagram of the testing apparatus ofFIG. 1 ; -
FIG. 4 is a circuit diagram of the testing apparatus ofFIG. 1 , together with a cable to be tested; -
FIG. 5 is a circuit diagram of a testing apparatus in accordance with another preferred embodiment of the present invention; and -
FIG. 6 is a circuit diagram of the testing apparatus ofFIG. 5 , together with the cable to be tested. -
FIG. 1 is an isometric view of a cable testing apparatus in accordance with a preferred embodiment of the present invention. The testing apparatus includes afirst interface 10, asecond interface 20, a double-pole double-throw (DPDT)switch 30, anopen circuit indicator 40, and ashort circuit indicator 50 all mounted on aplate 3. Theopen circuit indicator 40 and theshort circuit indicator 50 are light emitting diode (LED) indicators or some other kind of indicators. Thefirst interface 10 and thesecond interface 20 comprise a plurality of pins. -
FIG. 2 is an isometric view of the testing apparatus in accordance with the preferred embodiment of the present invention, together with acable 100 to be tested. Thecable 100 has a number of wires that are connected between afirst connector 101 and asecond connector 102. Thefirst connector 101 can be plugged into thefirst interface 10, and thesecond connector 102 can be plugged into thesecond interface 20. -
FIG. 3 is a circuit diagram of the testing apparatus in accordance with the preferred embodiment of the present invention. A power supply terminal Vcc is connected to an anode of theopen circuit indicator 40 via a resistor R1, a cathode of theopen circuit indicator 40 is connected to a first pin a1 (FIG. 4 ) of thefirst interface 10, a second pin a39 is connected to an anode of theshort circuit indicator 50, and a third pin a40 is grounded. A first contact A of theDPDT switch 30 is connected to the anode of theopen circuit indicator 40, and a second contact B of theDPDT switch 30 is connected to the cathode of theopen circuit indicator 40. A third contact C of theDPDT switch 30 is connected to a fourth pin a2 of thefirst interface 10, a fourth contact D of theDPDT switch 30 is connected to the second pin a39, and a fifth contact E of theDPDT switch 30 is connected to the cathode of theshort circuit indicator 50. Every two adjacent odd pins of thefirst interface 10 are connected except the first pin a1, the second pin a39, the third pin a40, and the fourth pin a2, i.e. pins a3 and a5 are electronically connected, pins a7 and a9 are electronically connected, . . . pins a35 and a37 are electronically connected; every two adjacent even pins of thefirst interface 10 are electronically connected, i.e. pins a4 and a6 are electronically connected, pins a8 and alO are electronically connected, . . . pins a36 and a38 are electronically connected. Every two adjacent odd pins of thesecond interface 20 are electronically connected, i.e. pins b1 and b3 are electronically connected, pins b5 and b7 are electronically connected, . . . pins b37 and b39 are electronically connected; every two adjacent even pins are electronically connected, i.e. pins b2 and b4 are electronically connected, pins b6 and b8 are electronically connected, . . . pins b38 and b40 are electronically connected. - When the
cable 100 is attached to the testing apparatus, the pins of thefirst interface 10 and thesecond interface 20 are connected via the wires of thecable 100, that is, pins a1 and b1, pins a2 and b2, . . . pins a40 and b40 are all connected to each other. - Referring to
FIG. 4 , between the second contact B and the fourth contact D, the odd pins of thefirst interface 10 and thesecond interface 20 are connected in sequence, that is, the pin a1 is connected to the pin b1, the pin b1 is connected with the pin b3, the pin b3 is connected to the pin a3 and so on, via thecable 100, and between the third contact C and the ground, the even pins of thefirst interface 10 and thesecond interface 20 are connected in sequence, that is, the pin a2 is connected to the pin b2, the pin b2 is connected with the pin b4, the pin b4 is connected to the pin a4 and so on, via thecable 100, in this way, when the appropriate contacts of the DPDT are closed a test circuit is formed. - In testing the
cable 100, thecable 100 is mounted to the testing apparatus with thefirst connector 101 plugged in to thefirst interface 10 and thesecond connector 102 plugged into thesecond interface 20. In the open circuit test, the contacts C and D are closed, the contacts A and B are open, and the contacts C and E are open, thus theopen circuit indicator 40 is included in the testing circuit, and theshort circuit indicator 50 is not. If thecable 100 has one or more opens or bad connections in the wires, the test circuit will be open as well, and theopen circuit indicator 40 remains unlit. If there are no opens in thecable 100, the test circuit will be complete and theopen circuit indicator 40 will be lit to indicate thecable 100 is normal. - If a short is present in the
cable 100 it will occur between two adjacent wires, that is: short circuit occurs between an odd wire and its adjacent even wire. The odd wire is the wire between the odd pin of thefirst interface 10 and the corresponding odd pin of thesecond interface 20. The even wire is the wire between the even pin of thefirst interface 10 and the corresponding even pin of thesecond interface 20. - In the short circuit test, the contacts A and B are closed, the contacts C and E are closed, and the contacts C and D are open, thus, the
short circuit indicator 50 is included in the testing circuit, and theopen circuit indicator 40 is shorted. If there is a short between two adjacent wires, theshort circuit indicator 50 will be shorted as well and remain unlit. If there are no shorts in thecable 100, theshort circuit indicator 50 will light to indicate thecable 100 is normal. - Another embodiment of the testing apparatus is shown in
FIG. 5 . The first pin, second pin, third pin, and fourth pin are the pins a3, a39, a40, and a2 of thefirst interface 100 respectively. The circuit diagram using the testing apparatus to test thecable 100 is shown inFIG. 6 . The pin a1 is connected with the pin a5. The present embodiment can also test wire faults, such as open wires and shorts between wires. - The first pin, the second pin, the third pin, and the fourth pin can be other pins of the
first interface 10, all the odd wires are at one end of theshort circuit indicator 50, and all the even wires are at the other end of theshort circuit indicator 50, when there is a short between two adjacent wires, theshort circuit indicator 50 will indicate a fault in the cable. - Moreover, the DPDT switch can be replaced by other switches, for example, the switch between the first contact A and the second contact B can be a single-pole single-throw (SPST) switch, the switch among the third contact C and the fourth contact D and the fifth contact E can be a single-pole double throw (SPDT) switch.
- It is to be understood, however, that even though numerous characteristics and advantages of the present embodiments have been set forth in the foregoing description, together with details of the structures and functions of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2005100336422A CN100529779C (en) | 2005-03-12 | 2005-03-12 | Line open-short circuit tester |
CN200510033642.2 | 2005-03-12 |
Publications (2)
Publication Number | Publication Date |
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US20060202703A1 true US20060202703A1 (en) | 2006-09-14 |
US7116112B1 US7116112B1 (en) | 2006-10-03 |
Family
ID=36970156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/370,791 Expired - Fee Related US7116112B1 (en) | 2005-03-12 | 2006-03-08 | Apparatus for testing electric cables |
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US (1) | US7116112B1 (en) |
CN (1) | CN100529779C (en) |
Cited By (6)
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US20090110184A1 (en) * | 2007-10-29 | 2009-04-30 | Embarq Holdings Company Llc | System to provide real loops for sidetone measurement with analog telephones |
KR200446263Y1 (en) | 2007-12-03 | 2009-10-13 | (주)유텍시스템 | Cable tester |
CN103529353A (en) * | 2013-10-31 | 2014-01-22 | 上海沪工焊接集团股份有限公司 | Flat cable detection method and flat cable detection system |
CN103543368A (en) * | 2012-07-16 | 2014-01-29 | 华润赛美科微电子(深圳)有限公司 | Open/short test method and open/short test machine for integrated circuits |
CN103941134A (en) * | 2013-01-21 | 2014-07-23 | 神讯电脑(昆山)有限公司 | A wire stock short detection circuit |
CN105866656A (en) * | 2016-03-17 | 2016-08-17 | 杭州长川科技股份有限公司 | Control module circuit used for multi-pin chip open and short circuit test |
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CN2831148Y (en) * | 2005-08-04 | 2006-10-25 | 鸿富锦精密工业(深圳)有限公司 | Wire tester |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4471293A (en) * | 1982-05-03 | 1984-09-11 | Otto Schnack | Multi-conductor cable test unit |
US4736158A (en) * | 1984-02-02 | 1988-04-05 | Mccartney Richard | Wire identifying apparatus for identifying wires of a multiple wire electrical system |
US5280251A (en) * | 1991-11-07 | 1994-01-18 | Cami Research, Inc. | Continuity analysis system with graphic wiring display |
US5436554A (en) * | 1992-09-04 | 1995-07-25 | Decker, Jr.; Harold J. | Computer controlled cable tester |
US20040187980A1 (en) * | 2003-03-25 | 2004-09-30 | Questek Innovations Llc | Coherent nanodispersion-strengthened shape-memory alloys |
US20060086440A1 (en) * | 2000-12-27 | 2006-04-27 | Boylan John F | Nitinol alloy design for improved mechanical stability and broader superelastic operating window |
US20060086432A1 (en) * | 2004-10-26 | 2006-04-27 | Regents Of The University Of Minnesota | Low hysteresis materials and methods |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002100986A (en) * | 2000-09-21 | 2002-04-05 | Matsushita Electric Ind Co Ltd | Noise elimination data processor, dc voltage measuring device using the processor, digital voltage measuring apparatus and recording medium having noise elimination data processing program recorded thereon |
CN2629046Y (en) * | 2003-05-26 | 2004-07-28 | 系新科技股份有限公司 | Element tester for printed circuit board |
-
2005
- 2005-03-12 CN CNB2005100336422A patent/CN100529779C/en not_active Expired - Fee Related
-
2006
- 2006-03-08 US US11/370,791 patent/US7116112B1/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4471293A (en) * | 1982-05-03 | 1984-09-11 | Otto Schnack | Multi-conductor cable test unit |
US4736158A (en) * | 1984-02-02 | 1988-04-05 | Mccartney Richard | Wire identifying apparatus for identifying wires of a multiple wire electrical system |
US5280251A (en) * | 1991-11-07 | 1994-01-18 | Cami Research, Inc. | Continuity analysis system with graphic wiring display |
US5436554A (en) * | 1992-09-04 | 1995-07-25 | Decker, Jr.; Harold J. | Computer controlled cable tester |
US20060086440A1 (en) * | 2000-12-27 | 2006-04-27 | Boylan John F | Nitinol alloy design for improved mechanical stability and broader superelastic operating window |
US20040187980A1 (en) * | 2003-03-25 | 2004-09-30 | Questek Innovations Llc | Coherent nanodispersion-strengthened shape-memory alloys |
US20060086432A1 (en) * | 2004-10-26 | 2006-04-27 | Regents Of The University Of Minnesota | Low hysteresis materials and methods |
Cited By (7)
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---|---|---|---|---|
US20090110184A1 (en) * | 2007-10-29 | 2009-04-30 | Embarq Holdings Company Llc | System to provide real loops for sidetone measurement with analog telephones |
US9444921B2 (en) * | 2007-10-29 | 2016-09-13 | Centurylink Intellectual Property Llc | System to provide real loops for sidetone measurement with analog telephones |
KR200446263Y1 (en) | 2007-12-03 | 2009-10-13 | (주)유텍시스템 | Cable tester |
CN103543368A (en) * | 2012-07-16 | 2014-01-29 | 华润赛美科微电子(深圳)有限公司 | Open/short test method and open/short test machine for integrated circuits |
CN103941134A (en) * | 2013-01-21 | 2014-07-23 | 神讯电脑(昆山)有限公司 | A wire stock short detection circuit |
CN103529353A (en) * | 2013-10-31 | 2014-01-22 | 上海沪工焊接集团股份有限公司 | Flat cable detection method and flat cable detection system |
CN105866656A (en) * | 2016-03-17 | 2016-08-17 | 杭州长川科技股份有限公司 | Control module circuit used for multi-pin chip open and short circuit test |
Also Published As
Publication number | Publication date |
---|---|
CN100529779C (en) | 2009-08-19 |
US7116112B1 (en) | 2006-10-03 |
CN1831548A (en) | 2006-09-13 |
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