CN104464449A - Optical fiber end connection testing practical training device - Google Patents
Optical fiber end connection testing practical training device Download PDFInfo
- Publication number
- CN104464449A CN104464449A CN201410609702.XA CN201410609702A CN104464449A CN 104464449 A CN104464449 A CN 104464449A CN 201410609702 A CN201410609702 A CN 201410609702A CN 104464449 A CN104464449 A CN 104464449A
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- Prior art keywords
- optical fiber
- test
- module
- testing
- training device
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
Abstract
The invention discloses an optical fiber end connection testing practical training device, and relates to the field of optical network wiring. The optical fiber end connection testing practical training device is used for solving the problems that in the prior art, testing defects exist, and results cannot be displayed visually. The optical fiber end connection testing practical training device comprises a fixing unit, testing interface modules, optical fiber fault testing modules, a data communication unit, a terminal processing display module and an output interface module. Each testing interface module comprises at least two ports and is used for inserted connection of optical fiber connecting cables; each optical fiber fault testing module is used for testing connection diagrams of the optical fiber cables according to groups, and each testing interface module corresponds to one optical fiber fault testing module; the data communication unit is used for transmitting group selecting testing commands and transmitting testing data analyzed and processed by the optical fiber fault testing modules to the terminal processing display module; the terminal processing display module is used for analyzing and processing testing data obtained by the optical fiber fault testing modules and displaying the testing data on an LCD screen. By means of the optical fiber end connection testing practical training device, the optical fiber cable end connection operation capacity of students can be better trained.
Description
Technical field
The present invention relates to network layout field, particularly relate to a kind of optical fiber distribution frame with outside plant test training device.
Background technology
At present, all kinds of colleges and universities, professorship, Zhong Zhi universities and colleges computer network and communication class specialty more and more pay attention to practical education.Comprehensive wiring is a computer network and communication class specialized course, has very strong engineering practice.Wherein basic skills of comprehensive wiring according to national standard " generic cabling engineering acceptance specification " (GB50312-2007) termination, measuring fiber cable.
Some problems of product ubiquity of teaching comprehensive wiring optical fiber distribution frame with outside plant, test, easy mislead students is to the understanding of comprehensive wiring relevant criterion.Such as: in test optical fiber otherwise test single-mode fiber, test multimode optical fiber, and can only one be tested at every turn, only show pad value, troublesome poeration, and student is when testing, match different optical fiber interfaces, repeatedly dismantle test splice, also will select single mode multimodal modal, improve complicacy and the failure rate of operation.
Prior art related to the present invention has " a kind of optical fiber online testing device and method ", wherein describes the technical scheme that optical fiber distribution frame with outside plant is surveyed: using the downlink data of transmission with as after the periodic signal of frequency sound test signal synthesizes, be sent to optical fiber; Simulated reflections signal is received to device by light, after analog to digital conversion is carried out to the simulated reflections signal received, according to periodic signal and the reflected signal that receives, calculate amplitude response and the phase response of each frequency of system under test (SUT), and then according to the frequency response of the system under test (SUT) obtained within the scope of certain frequency, calculated the time domain response of system under test (SUT) by anti-Fourier.This scheme can use any period signal as frequency sound test signal, thus can reduce the complicacy of proving installation
To sum up, prior art just done corresponding process from the type aspect transmitted, reduce the complicacy of measuring fiber cable fault, do not relate to light source light power meter and optical time domain reflection technology, optical power value and the pad value of many group single-mode fibers and multimode optical fiber can not be tested out simultaneously, more can not test many optical fiber, and the optical patchcord of many distinct interfaces simultaneously, and judge it is the optical patchcord of that type.Inconvenient operation, easily makes mistakes in real training process.
Summary of the invention
The invention provides a kind of convenient optical fiber cable termination test training device, there is in order to solve prior art the problem repeatedly changing different test optical fiber joints in test defect and student's test process.
A kind of optical fiber distribution frame with outside plant test training device of the present invention, comprise: fixed cell, be arranged on the test interface module on fixed cell, and be arranged on test interface module optical fiber cable fault test module below, with be arranged on the data communication units of fixed cell inside, terminal processes display module and output interface module, wherein, test interface module, comprise at least two group ports, for termination optical fiber cable to be tested; Optical fiber cable fault test module, for carrying out fault test to the optical fiber cable to be tested of termination on test interface module by group, its quantity is consistent with the quantity of test interface module; Data communication module is for transmitting the test command of terminal processing module transmission and sending the test data of optical fiber cable fault test module analysis process to terminal processes display module; Terminal processes display module, the test data drawn for analyzing and processing optical fiber cable fault test module also lcd screen demonstrates optical power value and the pad value of optical fiber, and judges it is cable on which interface, single mode and multimode grouping display;
Further comprise: output unit, the analysis processing result for being drawn by terminal processes display module outputs to external unit and stores.
Described lcd screen, more can be touch resistance or electric capacity or infrared LCD screen, analysis processing result is with polychrome graphics display.
The fault of the method measuring fiber cable that described optical fiber cable fault test module adopts light source and light power meter OLTS and time domain reflection technology OTDR to combine, to distinguish performance number and the pad value of optical fiber cable, and judge it is the optical fiber cable on which termination interface.Comprising laser controlling transmitter module, optical power detecting module, sequential selection circuit, single chip machine controlling circuit, precise light power conversion circuit; Laser controlling transmitter module is for launching the light stable signal of different wave length; Optical power detecting module is used for the optical power value of the detection fiber cable other end; Sequential selection circuit is used for sequential selection circuit, for some groups of ports on test interface module are connected to test circuit successively; Single chip machine controlling circuit, for controlling laser controlling transmitter module, optical power detecting module, signal generating circuit and sequential selection circuit; Precise light power conversion circuit, tests the optical fiber cable to be tested be terminated on test interface module for sending light signal, and the light signal of reception is converted to electric signal.Can the optical power value of measuring fiber cable and pad value, and judge it is the optical fiber cable of that interface type.
Described test interface module comprises: paired single mode ST, SC, LC or FC flange-interface and paired multimode ST, SC, LC or FC flange-interface.
Described test interface module is arranged on the front panel of fixed cell.
Described optical fiber cable fault test module be fixed on test interface module just after.
The quantity of described optical fiber cable fault test module is consistent with the quantity of test interface module, each test interface module corresponding optical fiber cable barrier test module.
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 arranged on the test interface module on fixed cell, and be arranged on test interface module optical fiber cable fault test module below, and be arranged on the data communication units of fixed cell inside, terminal processes display module and output interface module.Owing to there is optical fiber cable fault test module, so can the performance number of measuring fiber cable and loss value, judge the correctness of optical fiber cable termination; Owing to there is terminal processes display module, can judge it is the cable on which interface, complicacy when student's real training can be reduced, reduce error rate.。Therefore the present invention can better training student optical fiber cable terminated operation manipulative ability.
Accompanying drawing explanation
Fig. 1 is test philosophy schematic diagram of the present invention;
Fig. 2 is structural representation of the present invention.
embodiment
The problem that test defect and measuring fiber cable frequently change optical fiber flange joint is there is in order to solve prior art, the invention provides a kind of optical fiber cable test training device, test philosophy schematic diagram is shown in Figure 1, it is made up of test interface module, optical fiber cable fault test module, data communication module, terminal processes display module, fixed cell, in order to analysis processing result being utilized again, output interface module (optional) also can be comprised.The LCD display of test interface module, output interface module and terminal processes display module is arranged on fixed cell appearance, and optical fiber cable barrier test module, data communication module and terminal processes display module are arranged on fixed cell inside.
Test interface module can be made up of paired single mode ST, SC, LC or FC flange-interface and paired multimode ST, SC, LC or FC flange-interface.Paired monomode and multimode fiber bump joint can be fixed on the front panel of fixed cell.
The display screen of terminal processes display module can be LCD display, can be more touch LCD display.
Output interface module can be USB interface, RJ45 network interface or other output interfaces.
The fault of the method measuring fiber cable that optical fiber cable fault test module adopts light source and light power meter OLTS and time domain reflection technology OTDR to combine, to distinguish performance number and the pad value of optical fiber cable.So-called light source and light power meter (OLTS), be adopt to hold at optical fiber one end A, stabilized light source launches the signal formed by continuous light ripple with specific wavelength.Hold at other end B, light power meter detects and measures the power level of this signal.Light power meter and stabilized light source are combinationally used, then can measure junction loss, inspection continuity, and help assessment optical fiber link transmission quality.It is the light signal that laser controlling transmitter module launches specific wavelength in this proving installation, receiving the optical power value of flange-interface by being arrived by light power meter module testing after measuring fiber cable, detecting link loss and continuity to make the judgement of optical fiber attenuation.And OTDR time domain reflection technology is the structural loss utilizing the method analyzing rear orientation light or forward scattering light in optical fiber to measure fiber transmission attenuation because the reason such as scattering, absorption produces and various fault of construction to cause, when optical fiber is a bit by temperature or effect of stress, the scattering properties of this point will change, and therefore detect outer signals by display loss and the corresponding relation of fiber lengths and be distributed in disturbance information on sensor fibre.OTDR uses Rayleigh scattering and Fresnel reflection to characterize the characteristic of optical fiber.Rayleigh scattering is formed because light signal produces irregular scattering along optical fiber.OTDR just measures a part of scattered light getting back to OTDR port.These backscatter signals just indicate decay (loss/distance) degree caused by optical fiber, thus infer the pad value of optical fiber.Fiber failure test module, with light source and light power meter OLTS and time domain reflection technology OTDR, test processes is carried out to same measuring fiber cable respectively, thus obtain the pad value of optical fiber cable, and according to different optical power values, judge it is the optical fiber cable on which interface, judge the interface type of optical fiber cable to be tested.
Data communication module adopts RS-485 serial port communication technology, and RS-485 interface allows to connect nearly 128 receivers in bus, and therefore terminal processes display module connects multiple optical fiber cable fault test module by RS-485 communication technology.
Fixed cell is rack cabinet, is with desk-top layout and portable structure.
Principle of work of the present invention is: fixed cell panel is provided with some single mode ST, SC, LC or FC bump joints and multimode ST, SC, LC or FC bump joint.The optical patchcord made is inserted into test interface unit (single mode ST, SC, LC or FC bump joint or multimode ST, SC, LC or FC bump joint), press testing button and produce control signal, trigger optical fiber cable fault test module and carry out optical fiber cable test by group, after single chip machine controlling circuit receives and starts test signal, some groups of single-mode fiber cable flange-interfaces of front panel and multi-mode fiber optic cables flange-interface are linked test circuit by first Control timing sequence selection circuit successively, then control laser controlling transmitter module to send test light signal and test often organizing optical fiber cable, optical power detecting module receives detectable signal, the signal that fault test module utilizes light source and light power meter OLTS and time domain reflection technology OTDR Treatment Analysis to detect, obtain test data.Test data adopts 485 serial port communication technologies to send terminal processes display module to by data communication module to carry out analyzing and processing.Analysis processing result shows on the lcd screen in color graphics mode, demonstrates on-link mode (OLM) and the pad value of optical fiber cable, and the performance number of respective modules.Simultaneously by output interface module (as: USB interface or network interface), the analysis processing result that terminal processes display module draws is outputted to external unit to carry out storing (as: background server, storage chip etc.), thus the utilization again of Realization analysis result.
Shown in Figure 2, be structural representation of the present invention, comprise: touch LCD display 3; Power switch 5; USB interface 7; 6 pairs of optical fiber distribution frame with outside plant flange-interfaces 1; Optical fiber cable fault test module, terminal processes display module are at box house; Measuring fiber wire jumper 2; Network interface 6; Power light 4.
Embodiment:
In fig. 2, the optical patchcord 2 made is inserted into the single mode ST of pairing, SC, LC or FC bump joint or multimode ST, SC, in LC or FC bump joint 1, press testing button and produce control signal, press testing button and produce control signal, trigger optical fiber cable fault test module and carry out optical fiber cable test by group, after single chip machine controlling circuit receives and starts test signal, some groups of single-mode fiber cable flange-interfaces of front panel and multi-mode fiber optic cables flange-interface are linked test circuit by first Control timing sequence selection circuit successively, then control laser controlling transmitter module to send test light signal and test often organizing optical fiber cable, optical power detecting module receives detectable signal, the signal that fault test module utilizes light source and light power meter OLTS and time domain reflection technology OTDR Treatment Analysis to detect, obtain test data, then upload the data in terminal demonstration module by communication interface modules, the test result of optical fiber cable will be presented in touch LCD display 1, analysis processing result is saved on storage chip simultaneously, test data can be obtained by USB interface 7 or network interface 6.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (12)
1. an optical fiber cable termination test training device, it is characterized in that, comprise: fixed cell, be arranged on the test interface module on fixed cell, and be arranged on test interface module optical fiber cable fault test module below, with be arranged on the data communication module of fixed cell inside, terminal processes display module and output interface module, wherein, test interface module, comprise at least two group port single mode test interfaces one group of multimode test interface one group, wherein often organize and all comprise ST, SC and LC tri-docking port, for termination optical fiber cable to be tested;
Optical fiber cable fault test module, for the optical fiber cable test to be tested to termination on test interface module;
Data communication module, for transmitting the test command of terminal processing module transmission and sending the test data of fiber failure test module analyzing and processing to terminal processes display module;
Terminal processes display module, for the test data that analyzing and processing fiber failure test module draws, and wiring type and performance number and loss value display on the lcd screen.
2. a kind of optical fiber distribution frame with outside plant test training device as claimed in claim 1, it is characterized in that, also comprise: output interface module, the analysis processing result for being drawn by terminal processes display module outputs to external unit and stores.
3. a kind of optical fiber distribution frame with outside plant test training device as described in claim 1 or 4, it is characterized in that, described fiber failure test module comprises: laser controlling transmitter module, optical power detecting module, sequential selection circuit, single chip machine controlling circuit and precise light power conversion circuit; Optical power detecting module is used for the optical power value of the detection fiber cable other end;
Sequential selection circuit, for being connected to test circuit successively by some groups of ports on test interface module;
Single chip machine controlling circuit, for controlling laser controlling transmitter module, optical power detecting module, sequential selection circuit, precise light power conversion circuit;
Precise light power conversion circuit, tests the optical fiber cable to be tested be terminated on test interface module for sending light signal, and the light signal of reception is converted to electric signal.
4. a kind of optical fiber distribution frame with outside plant test training device as described in claim 1 or 4, is characterized in that, described optical fiber cable fault test module can the interface position of the optical power value of measuring fiber, loss value and judgement optical fiber.
5. a kind of optical fiber distribution frame with outside plant test training device as claimed in claim 1, is characterized in that, described data communication module adopts 485 serial port communication technologies that the test data of analyzing and processing is passed to terminal processes display module.
6. a kind of optical fiber distribution frame with outside plant test training device as claimed in claim 1, it is characterized in that, described test interface module comprises: paired single-mode fiber ST, SC, LC or FC bump joint, paired multimode optical fiber ST, SC, LC or FC bump joint, and these interfaces can also be replaced by the optical fiber interface of other types.
7. a kind of optical fiber distribution frame with outside plant test training device as claimed in claim 1, it is characterized in that, described test interface module is arranged on the front panel of fixed cell.
8. a kind of optical fiber distribution frame with outside plant test training device according to claim 1, is characterized in that, described survey fault test module can automatic discrimination link measuring fiber interface type.
9. a kind of optical fiber distribution frame with outside plant test training device as claimed in claim 2, is characterized in that, described output unit is USB interface or RJ45 network interface.
10. a kind of optical fiber distribution frame with outside plant test training device as claimed in claim 3, is characterized in that, described terminal processes display module display screen is touch LCD display.
11. a kind of twisted cable termination test training devices as described in claim 1 or 4, is characterized in that, described twisted-pair feeder fault test module be fixed on test interface module just after, the corresponding fiber failure test module of each test port module.
12. a kind of optical fiber distribution frame with outside plant test training devices as described in claim 1 or 7, it is characterized in that, described data communication module adopts 485 serial port communication technologies to connect one or more fiber failure test modules.
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| CN201410609702.XA CN104464449A (en) | 2014-11-04 | 2014-11-04 | Optical fiber end connection testing practical training device |
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| CN201410609702.XA CN104464449A (en) | 2014-11-04 | 2014-11-04 | Optical fiber end connection testing practical training device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110097793A (en) * | 2019-03-29 | 2019-08-06 | 武汉市纵享联合科技有限公司 | A kind of test optical fiber real training instrument |
| CN110113225A (en) * | 2019-03-29 | 2019-08-09 | 武汉市纵享联合科技有限公司 | A kind of network test real training instrument |
| CN112629820A (en) * | 2019-10-08 | 2021-04-09 | 中国移动通信集团浙江有限公司 | Optical fiber matching test system and method |
| CN114999292A (en) * | 2022-06-29 | 2022-09-02 | 江苏企想科技有限公司 | Practical training device for MPO fiber chromatography identification |
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Application publication date: 20150325 |