CN101650885B - Twisted cable termination test training device - Google Patents
Twisted cable termination test training device Download PDFInfo
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- CN101650885B CN101650885B CN 200910089129 CN200910089129A CN101650885B CN 101650885 B CN101650885 B CN 101650885B CN 200910089129 CN200910089129 CN 200910089129 CN 200910089129 A CN200910089129 A CN 200910089129A CN 101650885 B CN101650885 B CN 101650885B
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Abstract
The invention discloses a twisted cable termination test training device which relates to the network cabling field and solves the problems of test drawbacks and non-intuitional result display in the prior art. The training device comprises a fixed unit, a testing interface unit and a display unit which are installed on the external surface of the fixed unit, a twisted cable fault testing unit and a data processing control unit which are installed in the fixed unit, wherein the testing interface unit comprises at least two sets of ports for terminating twisted cables to be tested; the twisted cable fault testing unit is used for testing twisted cables to be tested which is terminated on the testing interface units in groups according to a cabling drawing; the data processing control unit is used for analyzing and processing test data obtained by the twisted cable fault testing unit; and the control unit is used for displaying the analyzed and processed results obtained by the data processing control unit. The invention can be used for training the operation ability of students for comprehensive cabling termination.
Description
Technical field
The present invention relates to the network layout field, particularly relate to a kind of twisted cable termination test training device.
Background technology
At present, all kinds of colleges and universities, professorship, middle duty universities and colleges' computer network and communication class specialty are more and more paid attention to practical education.Comprehensive wiring is a computer network and communication class specialized course, has very strong engineering practice.Wherein (GB50312-2007) termination, test cable are basic skills of comprehensive wiring according to national standard " generic cabling engineering acceptance specification ".
Some problems of product ubiquity of teaching comprehensive wiring termination, test, mislead students is to the understanding of comprehensive wiring relevant criterion easily.For example: in the twisted-pair termination real training, usually carry out the arrangement of line order and crimping cable according to comprehensive wiring standard EIA/TIA568A or 568B, EIA/TIA568A (green white-1, green-2 on the one hand, orange white-3, blue-4, blue white-5, orange-6, palm fibre white-7, palm fibre-8) with EIA/TIA568B (orange white-1, orange-2, green white-3, blue-4, Lan Bai-5, green-6, brown white-7, palm fibre-8) the line order is different, EIA/TIA has stipulated again direct-connected line (568A-568A, 568B-568B) and cross spider (568A-568B) on the other hand, and so loaded down with trivial details mixed and disorderly line order makes the beginner be difficult for the memory grasp.Existing comprehensive wiring termination real training product is judged the termination correctness by the electric property of test core break-make, identical but do not press the twisted-pair feeder of standard lines order crimping such as two ends cores order, just can not correctly test to remind the beginner in termination, mislead students is to understanding and the grasp of comprehensive wiring standard easily.
Prior art related to the present invention has " computer network compression bonded line experimental facility " etc., has wherein put down in writing the computer network compression bonded line experimental facility technical scheme: 1, adopt the network connection seat of pairing as the compression bonded line experiment porch.2, adopt the break-make of the LED demonstration core of pairing, it is comprised of network connection seat, holder, the display circuit of pairing, and the network connection seat of pairing is installed on the holder surface, and display circuit is installed on the holder, and circuit board is in holder.The network connection seat of pairing is connected with display circuit by circuit board.Described display circuit is to be connected to form by LED and circuit board, and each wire in the grid line is connected in series one group of LED at least, the corresponding core network conductors of each group LED.The pairing the network connection seat can 1-500 between choose.
To sum up, the test circuit of prior art is simpler, and it is identical but not by the twisted-pair feeder of standard crimping, can not test the twisted-pair cable string to fault to test out two end line orders, and adopts LED display twisted-pair fault, and is directly perceived not, judges by accident easily and fails to judge.
Summary of the invention
The invention provides a kind of twisted cable termination test training device, exist test defect and result to show not intuitively problem in order to solve prior art.
A kind of twisted cable termination test training device of the present invention, comprise: fixed cell, be installed in test interface unit and the display unit of fixed cell appearance, and the twisted-pair feeder fault test unit and the data processing and control unit that are installed in fixed cell inside, wherein, test interface unit comprises at least two group ports, is used for termination twisted-pair feeder to be tested; Twisted-pair feeder fault test unit is used for the twisted-pair feeder to be tested of termination on the test interface unit is carried out the wiring diagram test by group; The data processing and control unit is used for the test data that analyzing and processing twisted-pair feeder fault test unit draws; Display unit is used for the analysis processing result that shows that the data processing and control unit draws.
Further comprise: output unit is used for that the analysis processing result that the data processing and control unit draws is outputed to external unit and stores.
Described display unit is the LCD screen, more can be touch LCD screen, and analysis processing result is with polychrome graphics display.
Described twisted-pair feeder fault test unit adopts the characteristic impedance of Time Domain Reflectometry test twisted-pair feeder, to distinguish the twisted-pair feeder fault.Select circuit and test circuit comprising sequential; Sequential is selected circuit, is used for some groups of ports on the test interface unit are connected to test circuit successively; Test circuit is used for the twisted-pair feeder to be tested that is terminated on the test interface unit is tested.Can test that twisted-pair feeder is normal, open circuit, short circuit, reverse line be to, transposed pair, and go here and there right.
Described test interface unit comprises: paired 2 to 50 RJ45 test interfaces and 2 to 50 paired 110 type test interfaces.
Described test interface unit is arranged on the front panel or rear panel of fixed cell.
Described output unit is USB interface or RJ45 network interface.
Beneficial effect of the present invention is as follows:
The present invention includes fixed cell, be installed in test interface unit and the display unit of fixed cell appearance, and the twisted-pair feeder fault test unit and the data processing and control unit that are installed in fixed cell inside.Owing to there is twisted-pair feeder fault test unit, so can test the mistake in twisted-pair feeder crimping and the routing process, correct guiding student is to the understanding of GB; Owing to have display unit, so the twisted-pair feeder wiring diagram that shows is directly perceived, clear, can not judge by accident and fail to judge.Therefore the present invention can better cultivate Students ' Comprehensive wiring terminated operation manipulative ability.
Description of drawings
Fig. 1 is test philosophy synoptic diagram of the present invention;
Fig. 2 is structural representation of the present invention.
Embodiment
Exist test defect and result to show not intuitively problem in order to solve prior art, the invention provides a kind of twisted cable termination test training device, the test philosophy synoptic diagram is referring to shown in Figure 1, it is comprised of test interface unit, twisted-pair feeder fault test unit, data processing and control unit, display unit, fixed cell, for analysis processing result being utilized again, also can comprise output unit (optional).Test interface unit, output unit, display unit are installed in the fixed cell appearance, and twisted-pair feeder fault test unit, data processing and control cellular installation are in fixed cell inside.
Test interface unit can be comprised of 2-50 RJ45 test interface of pairing and the individual 110 type test interfaces of 2-50 of pairing.The RJ45 test interface of pairing can be arranged on front panel, also can be arranged on rear panel.110 type test interfaces of pairing can be arranged on front panel, also can be arranged on rear panel.
Display unit can be LCD display, more can be touch LCD display.
Output unit can be USB interface, RJ45 network interface or other output interfaces.
Twisted-pair feeder fault test unit adopts the characteristic impedance of Time Domain Reflectometry test twisted-pair feeder to distinguish the twisted-pair feeder fault.So-called time domain reflection technology (TDR), the ultimate principle of employing are " impulse ejection " methods.According to transmission line theory, at pulse signal of one section emission of cable, this signal can transmit along cable, if when circuit does not have fault and loaded impedance to equal the characteristic impedance of transmission line, transponder pulse will be absorbed by load and produce without echoed signal; If circuit has the trouble spot, then the impedance of trouble spot is not equal to the characteristic impedance of circuit, thereby will produce echo reflection, and the ratio of reflection wave amplitude and incident wave amplitude is called emission ratio.When the faults such as circuit generation broken string, the impedance of trouble spot is loaded impedance, by the emission ratio of measuring, calculates the size of loaded impedance, again according to the characteristic impedance of transmission line, just can analyze the character of trouble spot.So-called characteristic impedance: it is the concept in very high frequency(VHF), uhf-range, and it is not direct current resistance.Belong to the concept in the long line transmission.In the transmission course of signal, in the place of signal along arrival, between signal wire and the reference planes (power plane or ground level) because the foundation of electric field, will produce the electric current of a moment, if transmission line is isotropic, so as long as signal is transmitting, will there be all the time an electric current I, if and the output level of signal is V, then in signals transmission (attention is in the transmission course), transmission line will equivalence become a resistance, and size is V/I, and we call this equivalent resistance the characteristic impedance (characteristic Impedance) of transmission line.Therefore twisted-pair feeder fault test unit can test that twisted-pair feeder is normal, open circuit (opening circuit), short circuit, reverse line to (intersections), transposed pair (wrong to), go here and there to 6 types.
Fixed cell is 19 " the rack cabinet, be with desk-top layout and portable structure.
Principle of work of the present invention is: some (1-25) group RJ45 interface and some (1-25) group 4 pairs of 110 interfaces (interface unit) are installed on the fixed cell panel.The network jumper wire of making is inserted into test interface unit (RJ45 interface or 110 type interfaces), press testing button and produce control signal, trigger twisted-pair feeder fault test unit and carry out the test of twisted-pair feeder wiring diagram by group, wherein sequential selects circuit some groups of RJ45 ports or 110 ports of front panel will be linked test circuit successively, and test circuit can be tested every group of twisted-pair feeder.Test data is carried out analyzing and processing by the data processing and control unit.Analysis processing result is presented on the LCD screen in color graphics mode (wiring diagram), simultaneously by output unit (as: USB interface or network interface), the analysis processing result that the data processing and control unit is drawn outputs to external unit and stores (as: background server, storage chip etc.), thus the again utilization of Realization analysis result.
Referring to shown in Figure 2, be structural representation of the present invention, comprising: touch LCD display 1; RJ45 interface 2; Power switch 3; USB interface 4; 4 pairs of 110 connection terminals 5; Twisted-pair feeder fault test unit and data processing and control unit 6; Test twisted-pair feeder 7; Network interface 8; Fixed cell 9; Power light 10.
Embodiment one:
In Fig. 2, the test twisted-pair feeder 7 of making is inserted in the RJ45 test interface 2 of pairing, press testing button and produce control signal, trigger twisted-pair feeder fault test unit and carry out the test of twisted-pair feeder wiring diagram by group, wherein sequential selects circuit 4 groups of RJ45 test interfaces of front panel will be linked test circuit one by one, test circuit is tested every group of twisted-pair feeder successively, if being sky, then skips test interface, then the wiring diagram of twisted-pair feeder can be presented on the touch LCD display 1, analysis processing result is saved on the storage chip simultaneously, can obtain test data by USB interface 4 or network interface 8.
Embodiment two:
In Fig. 2, the test twisted-pair feeder 7 of making is inserted in 4 couple, 110 connection terminals 5 of pairing, press testing button and produce control signal, trigger twisted-pair feeder fault test unit and carry out the test of twisted-pair feeder wiring diagram by group, wherein sequential selects circuit 4 groups of RJ45 test interfaces of front panel will be linked test circuit one by one, test circuit is tested every group of twisted-pair feeder successively, if being sky, then skips test interface, then the wiring diagram of twisted-pair feeder can be presented on the touch LCD display 1, test result is saved on the storage chip simultaneously, can obtain test data by USB interface 4 or network interface 8.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (7)
1. a twisted cable termination test training device is characterized in that, comprising: fixed cell, be installed in test interface unit and the display unit of fixed cell appearance, and the twisted-pair feeder fault test unit and the data processing and control unit that are installed in fixed cell inside, wherein
Test interface unit comprises at least two group ports, is used for termination twisted-pair feeder to be tested;
Twisted-pair feeder fault test unit, be used for the twisted-pair feeder to be tested of termination on the test interface unit is carried out the wiring diagram test by group, comprise that the test twisted-pair feeder is normal, open circuit, short circuit, reverse line be to, transposed pair, and go here and there right, adopt the characteristic impedance of Time Domain Reflectometry test twisted-pair feeder, to distinguish the twisted-pair feeder fault;
Described twisted-pair feeder fault test comprises in the unit: sequential is selected circuit;
Sequential is selected circuit, is used for some groups of ports on the test interface unit are connected to test circuit successively;
The data processing and control unit is used for the test data that analyzing and processing twisted-pair feeder fault test unit draws;
Display unit, the analysis processing result according to the data processing and control unit draws shows measured twisted-pair feeder wiring diagram.
2. a kind of twisted cable termination test training device as claimed in claim 1 is characterized in that, also comprises: output unit is used for that the analysis processing result that the data processing and control unit draws is outputed to external unit and stores.
3. a kind of twisted cable termination test training device as claimed in claim 1 is characterized in that, described display unit is the LCD screen, and analysis processing result is with polychrome graphics display.
4. a kind of twisted cable termination test training device as claimed in claim 1 is characterized in that, described test interface unit comprises: paired 2 to 50 RJ45 test interfaces and 2 to 50 paired 110 type test interfaces.
5. such as claim 1 or 4 described a kind of twisted cable termination test training devices, it is characterized in that described test interface unit is arranged on the front panel or rear panel of fixed cell.
6. a kind of twisted cable termination test training device as claimed in claim 2 is characterized in that, described output unit is USB interface or RJ45 network interface.
7. a kind of twisted cable termination test training device as claimed in claim 3 is characterized in that, described display unit is touch LCD screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910089129 CN101650885B (en) | 2009-08-04 | 2009-08-04 | Twisted cable termination test training device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910089129 CN101650885B (en) | 2009-08-04 | 2009-08-04 | Twisted cable termination test training device |
Publications (2)
| Publication Number | Publication Date |
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| CN101650885A CN101650885A (en) | 2010-02-17 |
| CN101650885B true CN101650885B (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910089129 Expired - Fee Related CN101650885B (en) | 2009-08-04 | 2009-08-04 | Twisted cable termination test training device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833889B (en) * | 2010-04-27 | 2013-11-06 | 广州市唯康通信技术有限公司 | Digital display twisted-pair termination detecting device |
| CN104346972A (en) * | 2013-08-06 | 2015-02-11 | 国家电网公司 | Mobile drop wire training device |
| CN104464449A (en) * | 2014-11-04 | 2015-03-25 | 北京物联世纪科技有限公司 | Optical fiber end connection testing practical training device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201066546Y (en) * | 2007-07-17 | 2008-05-28 | 西安开元电子实业有限公司 | Practical training device for network wiring |
| CN101241164A (en) * | 2008-01-25 | 2008-08-13 | 东南大学 | Multifunctional electric cable failure detector |
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2009
- 2009-08-04 CN CN 200910089129 patent/CN101650885B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201066546Y (en) * | 2007-07-17 | 2008-05-28 | 西安开元电子实业有限公司 | Practical training device for network wiring |
| CN101241164A (en) * | 2008-01-25 | 2008-08-13 | 东南大学 | Multifunctional electric cable failure detector |
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| CN101650885A (en) | 2010-02-17 |
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Granted publication date: 20130313 Termination date: 20160804 |