CN103761905A - Optical fiber fault detection teaching device and using method thereof - Google Patents
Optical fiber fault detection teaching device and using method thereof Download PDFInfo
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- CN103761905A CN103761905A CN201410026897.5A CN201410026897A CN103761905A CN 103761905 A CN103761905 A CN 103761905A CN 201410026897 A CN201410026897 A CN 201410026897A CN 103761905 A CN103761905 A CN 103761905A
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Abstract
The invention discloses an optical fiber fault detection teaching device. The device comprises a fiber optic distribution frame and fault optical fiber links arranged inside the fiber optic distribution frame. Each fault optical fiber link comprises a jumper fiber, a bare fiber, two tail fibers and a pair of couplers. The two ends of each bare fiber are connected with the two corresponding tail fibers respectively, and the other ends of the tail fibers are connected with the couplers. The invention further discloses a using method of the optical fiber fault detection teaching device. The using method includes the following steps of calibrating a fiber optic testing instrument, setting parameters, cleaning and checking a fiber optic port, enabling the fiber optic testing instrument, an emitting cable and the fault optical fiber links to be connected, testing the optical fiber links and analyzing testing results. According to the optical fiber fault detection teaching device and the using method thereof, the bare fibers and the tail fibers with small sizes are adopted, the multiple fault links are integrated in the same fiber optic distribution frame, carrying is convenient, the fault types, positions and component names of optical fiber wire arrangement are displayed at the same time, optical fiber transmission medium cognition, optical fiber continuous cognition and optical fiber termination cognition can be visually conducted, and optical fiber fault detecting, positioning and repairing are mastered.
Description
Technical field
The present invention relates to practice teaching equipment field, especially relate to a kind of fiber failure and detect instructional device and using method.
Background technology
Datumization along with miscellaneous service, the demand of wideband switch-in business increases, demand to optical fiber wiring personnel also increases greatly, whether the optic communication links of network comprehensive lining system meets the requirement of design standards and network transmission performance, need to carry out Tier1 test (length and attenuation test) and Tier2 test (Tier1 and OTDR), wherein, the English that OTDR is optical time domain reflectometer is called for short, and OTDR test needs high-accuracy OTDR instrument and professional OTDR tracing analysis ability.Student is when carrying out integrated wiring training or pre-job training, learnt correct construction method, but owing to can not seeing intuitively the various faults of optical fiber wiring process and lacking construction experience, in practice of construction process, optical fiber wiring percent of pass is not high, existing fiber failure detects instructional device, for every kind of fault, make an optical fiber cable link, be put into again in casing or rack, because fiber failure Linktype is more, while showing various fault, just need to carry a plurality of casings, carry inconvenience, in addition, in faulty link, do not show trouble spot, student is cognitive and grasp trouble spot intuitively.
Application publication number is that the patent of CN103268718A discloses a kind of fiber failure test macro for imparting knowledge to students, by optical fiber local side apparatus fault test case, backbone optical cable fault test case and secondary light-splitting terminal fault test case, formed, backbone optical cable fault test case comprise one-level Optical cross connects case, secondary light-splitting case and between the backbone optical cable link that connects, shown the normal fiber failure occurring in FTTx equipment, but casing is too many, carry very inconveniently, also do not show that the construction technology of P2P and optical fiber are cognitive.
Summary of the invention
The one side of task of the present invention is to provide a kind of good portability, thus the fiber failure that can show intuitively optical fiber construction technique and various fiber failures detect instructional device to solve, carry inconvenience, can not show intuitively optical fiber construction technique and various fiber failure make student's cable wiring manufacture technological level low, can not carry out fast the problem of fault detect and location.
The using method that is to provide on the other hand a kind of fiber failure detection instructional device of task of the present invention.
The present invention is achieved through the following technical solutions:
A kind of fiber failure detects instructional device, comprise fibre distribution frame and be placed in the optical fiber link in fibre distribution frame, every optical fiber link includes naked fibre, two tail optical fibers and a pair of coupling apparatus, and naked fine two ends are connected with two tail optical fibers respectively, and the tail optical fiber other end connects coupling apparatus; Described optical fiber link comprises four fault optical fiber links, and the mixed fault optical fiber link of the pattern that is respectively, splice loss, splice attenuation fault optical fiber link, overbend fault optical fiber link and connector pollute fault optical fiber link.Thus, can in same fibre distribution frame, show various faulty link, easy to carry and cognitive fiber failure point and optical fiber cable wiring manufacture technique very intuitively.
Further, also comprise outdoor armored fiber optic introducing portion and indoor optical-fibre introducing portion, the strengthening core steel wire of outdoor armored fiber optic introducing portion is screwed on fibre distribution frame, and indoor optical-fibre introducing portion is fixed on fibre distribution frame by band.Thus, can learn intuitively the installation method of outdoor armored fiber optic and indoor optical-fibre.
Further, also comprise fiber management tray, on it, plug-in mounting has longitudinal plate of wire inlet/outlet hole, and a side of plate is provided with winding frame.Thus, the naked fibre having more and tail optical fiber can be wound around, neat appearance, capacity is large and be independent of each other, and has guaranteed the security performance of optical fiber.
Further, also comprise splice tray, it comprises fibre melting disc and optical fiber tempreature bulb, and fibre melting disc is fixed on fibre distribution frame, and in optical fiber tempreature bulb, cover has the fused fiber splice section of tail optical fiber and naked fibre and is stuck on fibre melting disc.Thus, can prevent the stressed fracture of naked fine welding section.
Further, described optical fiber link also comprises normal optical fiber link.Normal optical fiber link provides contrast in the time of can be for the cognitive fault optical fiber link of student.
Further, fibre distribution frame is drawer structure, is also provided with cover plate on fibre distribution frame, and cover plate is plexiglas.Adopt drawer structure to make the welding of optical fiber more convenient to operate with allotment line, transparent cover plate can protect the optical fiber link parts in fibre distribution frame without uncap, can learn in use once convenient simultaneously.
Further, corresponding component names sign is posted on all parts side of fibre distribution frame.Thus, student is can be very intuitively cognitive and be familiar with all parts in optical fiber link.
Fiber failure detects a using method for instructional device as described above, comprises the following steps: step 1, fiber optic calibration test instrumentation and parameters; Step 2, clean and inspection fiber port; Step 3, connects fiber optic test instrument, transmitting optical cable and fault optical fiber link; Step 4, measuring fiber link; Step 5, analytical test result.
Further, optical fiber instrument is optical time domain reflectometer OTDR, and in step 2, the clean and inspection of fiber port is to use optical fiber microexamination cleanliness after adopting anhydrous alcohol to clean end face dirt again; In step 3, connecting fiber optic test instrument, transmitting optical cable and fault optical fiber link is that one end of transmitting optical cable is connected with the emission port of optical fiber instrument, the other end is connected with the corresponding coupling mechanism interface of fault optical fiber link, transmitting optical cable is 100m single mode transmitting optical cable, naked fine part is coiled on the spindle of fiber-optic cable of disk, and two ends connect cephalic disc in disc surfaces; In step 5, analytical test result is end section inspection, OTDR trace analysis, loss authentication, length authentication or test result management.In the time of can preventing from testing to the cleaning of fiber port during measurement, pollute optical fiber instrument, connect 100m single mode transmitting optical cable and make decay dead band that its length is longer than optical fiber instrument to record the loss of first coupling apparatus in optical fiber link, and fiber reel can be improved to the consistance of test and the repeatability of loss test result on spindle of fiber-optic cable.
As preferably, described optical fiber link also comprises extended fiber link, and another coupling mechanism of fault optical fiber link is by wire jumper and extended fiber link connection.Thus, in can measuring optical fiber link, the loss of second coupling apparatus be convenient to find out more accurately trouble spot.
Fiber failure provided by the invention detects instructional device, good portability, can show intuitively that the fiber failure of optical fiber construction technique, various fiber failures detects instructional device, can help student to optical fiber, fibre junction and fiber failure carry out comprehensively cognitive and understanding, improve cable wiring manufacture technological level.Fiber failure provided by the invention detects the using method of instructional device, simple to operate, can help student correctly to judge fault type in optical fiber wiring process, carries out fault detect and location fast, shorten the wiring talent's cultivation cycle.
Accompanying drawing explanation
Fig. 1 is the structural representation that fiber failure of the present invention detects instructional device;
Fig. 2 is the panel schematic diagram that fiber failure of the present invention detects instructional device;
Wherein: 1-fibre distribution frame, 2-pattern is used fault optical fiber link with, 3-splice loss, splice attenuation fault optical fiber link, 4-overbend fault optical fiber link, 5-connector pollutes fault optical fiber link, 6-naked fibre, 7-tail optical fiber, 8-coupling apparatus, 9-outdoor armored fiber optic introducing portion, 9a-strengthening core steel wire, 9b-screw, 10-indoor optical-fibre introducing portion, 11-fiber management tray, 12-splice tray, 12a-fibre melting disc, 12b-optical fiber tempreature bulb, 13-extended fiber link, 14-normal optical fiber link, 15-component identification, 16-optical fiber instrument, 17-transmitting optical cable, 18-disk, 19-spindle of fiber-optic cable, 20-wire jumper.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
As depicted in figs. 1 and 2, fiber failure detects instructional device and comprises fibre distribution frame 1 and be placed in the optical fiber link in fibre distribution frame 1, fibre distribution frame 1 is drawer structure, on it, be also provided with cover plate, cover plate is plexiglas, in fibre distribution frame 1, corresponding component names sign 15 is posted on all parts side, optical fiber link comprises extended fiber link 13, normal optical fiber link 14 and four fault optical fiber links, every optical fiber link includes naked fine 6, article two, tail optical fiber 7 and a pair of coupling apparatus 8, naked fine 6 two ends are connected with two tail optical fibers 7 respectively, tail optical fiber 7 other ends connect coupling apparatus 8, article four, fault optical fiber link is respectively the mixed fault optical fiber link 2 of pattern, splice loss, splice attenuation fault optical fiber link 3, overbend fault optical fiber link 4 and connector pollution fault optical fiber link 5, wherein, the trouble spot of the mixed fault optical fiber link 2 of pattern is arranged on the welding section of corresponding optical fiber tempreature bulb 12b, by a single-mode fiber, multimode optical fiber welding respectively with corresponding tail optical fiber welding, then by single-mode fiber and multimode optical fiber welding, the trouble spot of splice loss, splice attenuation fault optical fiber link 3 is arranged on the welding section of corresponding optical fiber tempreature bulb 12b, and the fibre core that cutting technique is poor is welded together, and causes splice loss, splice attenuation excessive, after optical fiber being tangled in overbend fault optical fiber link 4, fiber bending radius is greater than the cable outer diameter of 2 times and does not meet optical fiber total internal reflection and cause fibre loss excessive, the trouble spot that connector pollutes fault optical fiber link 5 is arranged on transmitting optical cable connector, fiber connector artificial pollution is inserted in the coupling apparatus 8 that link is corresponding again and caused that loss is excessive, and the fiber connector of pollution also can be arranged on to extend in optical cable and insert on the connector of coupling apparatus 8.
Fiber failure detects instructional device and also comprises outdoor armored fiber optic introducing portion 9 and indoor optical-fibre introducing portion 10, and wherein, the strengthening core steel wire 9a of outdoor armored fiber optic introducing portion 9 is fixed on fibre distribution frame 1 by screw 9b; Indoor optical-fibre introducing portion 10 is fixed on fibre distribution frame 1 by band.Outdoor armored fiber optic introducing portion is six core single-mode fibers, and indoor optical-fibre introducing portion is four-core single mode, also can be six core multimode optical fibers.
In fibre distribution frame, be also provided with fiber management tray 11, on it, plug-in mounting has longitudinal plate 11a of wire inlet/outlet hole, and a side of plate is provided with winding frame 11b.Fiber management tray 11 quantity are two, are distributed in the left and right sides on fibre distribution frame 1, also can be one.
Fiber failure detects instructional device and also comprises splice tray 12, and it comprises fibre melting disc 12a and optical fiber tempreature bulb 12b, and fibre melting disc 12a is fixed on fibre distribution frame 1, and in optical fiber tempreature bulb 12b, cover has the fused fiber splice section of tail optical fiber 7 and naked fine 6 and is stuck on fibre melting disc 12a.
Above-mentioned fiber failure detects the using method of instructional device, comprises the following steps:
Step 1, fiber optic calibration test instrumentation 16 and parameters, fiber cable type, content measurement or method are set, or call the built-in preset configuration file of test instrumentation;
Step 2, clean and check fiber port, use again optical fiber microexamination cleanliness after adopting anhydrous alcohol to clean end face dirt, fiber optic test instrument 16 carries out self check display port connection to self coupling apparatus well can be tested;
Step 3, connect fiber optic test instrument 16, transmitting optical cable 17 and fault optical fiber link, optical fiber instrument 16 is OTDR, transmitting optical cable 17 one end are connected with the emission port of OTDR, coupling mechanism 8 interfaces that the other end is corresponding with fault optical fiber link connect, as preferably, another coupling mechanism 8 of fault optical fiber link is also connected with extended fiber link 13 by wire jumper 20.Wherein, transmitting optical cable 17 is 100m single mode transmitting optical cable, and naked fibre part is coiled on the spindle of fiber-optic cable 19 of disk 18, and two ends connect cephalic disc on disk 18 surfaces;
Step 4, measuring fiber link selects test item to start test on optical time domain reflectometer;
Step 5, analytical test result, after having tested, optical time domain reflectometer show current test result for " failure " or " by ", fault is checked and location to end section inspection, optical time domain reflectometer trace analysis, loss authentication, length authentication or the management of LinkWare test result.
Repeat above step, can test respectively each fault optical fiber link and normal optical fiber link 14, according to the further analytical test result of standard GB/T 50312-2007, OTDR curve occurs that false increasing is excessive, from the other end, test again, occur that it is the mixed fault of pattern that relaxation phenomenon can be judged to be that fiber mode do not mate; Test result shows that decay surpasses 0.75dB, for connector pollutes decay, is that connector pollutes fault; OTDR test event result is that a loss value surpasses 0.3dB, and fault is splice loss, splice attenuation or curved transitions, further checks OTDR curve, and shortwave and long wave loss value are splice loss, splice attenuation about equally, and it is curved transitions loss that long wave loss is obviously greater than shortwave loss.Fiber failure of the present invention detects the using method of instructional device, according to test result, find position of failure point, and solve corresponding failure, each fault optical fiber link is independent, be independent of each other, by contrasting with the test result of normal optical fiber link 14, can more profoundly be familiar with and grasp the most common failure of optical fiber link again, fault is carried out analyzing and positioning and found solution.
Above-described is only some embodiments of the present invention, for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (10)
1. a fiber failure detects instructional device, it is characterized in that: comprise fibre distribution frame (1) and be placed in the optical fiber link in fibre distribution frame (1), every optical fiber link includes naked fibre (6), article two, tail optical fiber (7) and a pair of coupling apparatus (8), naked fibre (6) two ends are connected with two tail optical fibers (7) respectively, tail optical fiber (7) other end connects coupling apparatus (8), described optical fiber link comprises four fault optical fiber links, the mixed fault optical fiber link (2) of the pattern that is respectively, splice loss, splice attenuation fault optical fiber link (3), overbend fault optical fiber link (4) and connector pollute fault optical fiber link (5).
2. fiber failure according to claim 1 detects instructional device, it is characterized in that: also comprise outdoor armored fiber optic introducing portion (9) and indoor optical-fibre introducing portion (10), it is upper that the strengthening core steel wire (9a) of outdoor armored fiber optic introducing portion (9) is fixed on fibre distribution frame (1) by screw (9b), and indoor optical-fibre introducing portion (10) is fixed on fibre distribution frame (1) by band.
3. fiber failure according to claim 1 detects instructional device, it is characterized in that: also comprise fiber management tray (11), on it, plug-in mounting is provided with longitudinal plate (11a) of wire inlet/outlet hole, and a side of plate is provided with winding frame (11b).
4. fiber failure according to claim 1 detects instructional device, it is characterized in that: splice tray (12) is also installed, it comprises fibre melting disc (12a) and optical fiber tempreature bulb (12b), it is upper that fibre melting disc (12a) is fixed on fibre distribution frame (1), and in optical fiber tempreature bulb (12b), cover has the fused fiber splice section of tail optical fiber (7) and naked fibre (6) and is stuck on fibre melting disc (12a).
5. fiber failure according to claim 1 detects instructional device, it is characterized in that: described optical fiber link also comprises normal optical fiber link (14).
6. fiber failure according to claim 1 detects instructional device, it is characterized in that: described fibre distribution frame (1) is drawer structure, is also provided with cover plate on fibre distribution frame (1), and cover plate is transparent resin glass.
7. according to the fiber failure described in any one claim in claim 1 ~ 6, detect instructional device, it is characterized in that: corresponding component names sign (15) is posted on all parts side of described fibre distribution frame (1).
8. the fiber failure as described in any one claim in claim 1 ~ 7 detects a using method for instructional device, comprises the following steps: step 1, fiber optic calibration test instrumentation (16) and parameters; Step 2, clean and inspection fiber port; Step 3, connects fiber optic test instrument (16), transmitting optical cable (17) and fault optical fiber link; Step 4, measuring fiber link; Step 5, analytical test result.
9. fiber failure according to claim 8 detects the using method of instructional device, it is characterized in that:
Described fiber optic test instrument (16) is optical time domain reflectometer OTDR;
In described step 2, the clean and inspection of fiber port is to use optical fiber microexamination cleanliness after adopting anhydrous alcohol to clean end face dirt again;
In described step 3, connecting fiber optic test instrument (16), transmitting optical cable (17) and fault optical fiber link is that one end of transmitting optical cable (17) is connected with the emission port of fiber optic test instrument (16), the other end is connected with the corresponding coupling mechanism of fault optical fiber link (8) interface, transmitting optical cable (17) is 100m single mode transmitting optical cable, the spindle of fiber-optic cable (19) that naked fine part is coiled in a disk (18) is upper, and two ends connect cephalic disc on disk (18) surface;
In described step 5, analytical test result is end section inspection, OTDR trace analysis, loss authentication, length authentication or the management of LinkWare test result.
10. fiber failure according to claim 9 detects the using method of instructional device, it is characterized in that: described optical fiber link also comprises extended fiber link (13), another coupling mechanism (8) of described fault optical fiber link is connected with extended fiber link (13) by wire jumper (20).
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| CN108777096A (en) * | 2018-04-24 | 2018-11-09 | 山东职业学院 | SDH looped network Transmission Fibers link construction maintenance instructional devices and application method |
| CN111462584A (en) * | 2020-04-15 | 2020-07-28 | 南京信息职业技术学院 | Multifunctional optical fiber communication teaching device |
| US20220342170A1 (en) * | 2019-09-05 | 2022-10-27 | Telescent Inc. | Fiber optic cable cleaning sub-system in robotic fiber optic cross-connect systems, sub-systems, devices and methods |
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