CN103761905B - Fiber failure detects instructional device and using method - Google Patents
Fiber failure detects instructional device and using method Download PDFInfo
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Abstract
The invention discloses a kind of fiber failure and detect instructional device, this device comprises fibre distribution frame and is placed in the fault optical fiber link in fibre distribution frame, each bar fault optical fiber link includes jumping fiber, naked fibre, two tail optical fibers and a pair coupling mechanism, naked fine two ends are connected with two tail optical fibers respectively, tail optical fiber other end butt coupling device.Also disclose the using method of this device, comprise the following steps: fiber optic calibration test instrumentation and parameters, clean and inspection fiber port, connecting fiber test instrumentation, transmitting optical cable and fault optical fiber link, measuring fiber link and analytical test result.The naked fibre that the present invention adopts volume little and tail optical fiber collect many faulty links in same fibre distribution frame, easy to carry, illustrate simultaneously optical fiber wiring fault type and position, component names, optical fiber transmission medium cognition can be carried out intuitively, fibre junction is cognitive and optical fiber distribution frame with outside plant is cognitive, and grasp fiber failure detection, location and repair.
Description
Technical field
The present invention relates to practice teaching clothing arts, especially relate to a kind of fiber failure and detect instructional device and using method.
Background technology
Along with the datumization of miscellaneous service, the demand of wideband switch-in business increases, the demand of optical fiber wiring personnel is also increased 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 tests (Tier1 and OTDR), wherein, OTDR is the English abbreviation of optical time domain reflectometer, and OTDR test needs the OTDR tracing analysis ability of high-accuracy OTDR instrument and specialty.Student is when carrying out integrated wiring training or pre-job training, have learned correct construction method, but due to the various fault that intuitively can not arrive optical fiber wiring process with lack construction experience, in practice of construction process, it is not high that optical fiber is routed through rate, existing fiber failure detects instructional device, an optical fiber cable link is made for often kind of fault, be put in casing or rack again, because fiber failure Linktype is more, just need to carry multiple casing when showing various fault, carry inconvenience, in addition, trouble spot is not shown in faulty link, student can not cognition intuitively and grasp trouble spot.
Application publication number be CN103268718A patent discloses a kind of fiber failure test macro for imparting knowledge to students, be made up of optical fiber local side apparatus fault test case, backbone optical cable fault test case and secondary light-splitting terminal fault test case, backbone optical cable fault test case comprise one-level Optical cross connects case, secondary light-splitting case and between connect backbone optical cable link, illustrate the normal fiber failure occurred in FTTx equipment, but casing is too many, carry very inconvenient, also do not show construction technology and the optical fiber cognition of P2P.
Summary of the invention
The one side of task of the present invention is to provide a kind of good portability, can show that the fiber failure of optical fiber construction technique and various fiber failure detects instructional device and carries inconvenience to solve, can not show optical fiber construction technique and various fiber failure intuitively thus make the problem that student's cable wiring manufacture technological level is low, can not carry out fault detect and location fast intuitively.
The another aspect of task of the present invention is to provide the using method that a kind of fiber failure detects instructional device.
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 bar optical fiber link includes naked fibre, two tail optical fibers and a pair coupling mechanism, and naked fine two ends are connected with two tail optical fibers respectively, tail optical fiber other end butt coupling device; Described optical fiber link comprises four fault optical fiber links, and the pattern of being respectively is used fault optical fiber link, splice loss, splice attenuation fault optical fiber link, overbend fault optical fiber link and connector with and polluted fault optical fiber link.Thus, various different faulty link can be shown in same fibre distribution frame, easy to carry and can cognitive fiber failure point and optical fiber cable wiring manufacture technique very intuitively, described optical fiber link also comprises extended fiber link, and fault optical fiber link coupling mechanism is connected with extended fiber link by wire jumper.
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, the installation method of outdoor armored fiber optic and indoor optical-fibre can be learnt intuitively.
Further, also comprise fiber management tray, on it, plug-in mounting has longitudinal plate of wire inlet/outlet hole, and the side of plate is provided with winding frame.Thus, the naked fibre that has more and tail optical fiber can be wound around, neat appearance, capacity are large and be independent of each other, and ensure that 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, naked fine welding section forced breakage can be prevented.
The trouble spot that described pattern uses fault optical fiber link with is arranged on the welding section of corresponding optical fiber tempreature bulb, 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 described splice loss, splice attenuation fault optical fiber link is arranged on the welding section of corresponding optical fiber tempreature bulb, is welded together by the fibre core of cutting technique difference, causes splice loss, splice attenuation excessive; The cable outer diameter that after being tangled by optical fiber in described overbend fault optical fiber link, fiber bending radius is greater than 2 times does not meet optical fiber total internal reflection and causes fibre loss excessive; The trouble spot that described connector pollutes fault optical fiber link is arranged on transmitting optical cable connector, fiber connector artificial pollution being inserted in coupling mechanism corresponding to link causes loss excessive again, or the fiber connector polluted is arranged on to extend in optical cable and inserts on the connector of coupling mechanism.Described optical fiber link also comprises normal optical fiber link, normal optical fiber link is used for finding position of failure point according to test result, and solve corresponding failure, each fault optical fiber link is independent, be independent of each other, again by contrasting with the test result of this normal optical fiber link, thus being more profoundly familiar with and grasping the most common failure of optical fiber link, analyzing and positioning being carried out to fault and finds solution
Further, fibre distribution frame is drawer structure, and fibre distribution frame is also provided with cover plate, 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 can learn without the need to uncap in use once convenient simultaneously.
Further, corresponding component names mark is posted on all parts side of fibre distribution frame.Thus, student can the cognitive and all parts be familiar with in optical fiber link very intuitively.
Fiber failure as described above detects a using method for instructional device, and comprise the following steps: step one, fiber optic calibration test instrumentation and parameters, described fiber optic test instrument is optical time domain reflectometer OTDR; Step 2, clean and inspection fiber port; Step 3, connecting fiber test instrumentation, transmitting optical cable and fault optical fiber link; Step 4, measuring fiber link; Step 5, after having tested, analytical test result is end section inspection, OTDR trace analysis, loss certification, length certification or the management of LinkWare test result, find position of failure point according to test result, and solve corresponding failure, each fault optical fiber link is independent, be independent of each other, again 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, analyzing and positioning carried out to fault and finds solution.
Further, test each fault optical fiber link and normal optical fiber link respectively, according to standard GB/T 50312-2007 analytical test result: OTDR curve occurs that false increasing is overflow, then tests from the other end, occur that relaxation phenomenon can be judged to be that fiber mode does not mate i.e. pattern and uses fault with; Test result display decay, more than 0.75dB, is connector pollution decay and connector pollution fault; OTDR test event result is that a loss value is more than 0.3dB, fault is splice loss, splice attenuation or curved transitions, check OTDR curve further, shortwave and long wave loss value roughly equal be splice loss, splice attenuation, it is then curved transitions loss that long wave loss is obviously greater than shortwave loss, and in step 2, the clean and inspection of fiber port uses optical fiber microexamination cleanliness again after adopting anhydrous alcohol cleaning end face dirt; In step 3, connecting fiber test instrumentation, transmitting optical cable and fault optical fiber link are connected with the emission port of optical fiber instrument the one end of launching optical cable, the other end coupling mechanism interface corresponding to fault optical fiber link connects, launching optical cable is 100m single mode emission 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 certification, length certification or test result management.Can prevent from polluting optical fiber instrument during test to the cleaning of fiber port during measurement, connecting 100m single mode emission optical cable makes its length be longer than the decay dead band of optical fiber instrument to record the loss of first coupling mechanism in optical fiber link, and fiber reel can be improved on spindle of fiber-optic cable the consistance of test and the repeatability of loss test result.
As preferably, described optical fiber link also comprises extended fiber link, and another coupling mechanism of fault optical fiber link is connected with extended fiber link by wire jumper.Thus, can the loss of second coupling mechanism in measuring optical fiber link, be convenient to find out trouble spot more accurately.
Fiber failure provided by the invention detects instructional device, good portability, can show intuitively optical fiber construction technique, various fiber failure fiber failure detect instructional device, student can be helped 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 the cultivation cycle that student correctly judges fault type in optical fiber wiring process, carries out fault detect and location fast, shortened the wiring talent.
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 uses 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 mechanism, 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-launch 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 the optical fiber link that instructional device comprises fibre distribution frame 1 and is placed in fibre distribution frame 1, fibre distribution frame 1 is drawer structure, it is also provided with cover plate, cover plate is plexiglas, in fibre distribution frame 1, corresponding component names mark 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 bar optical fiber link includes naked fine 6, article two, tail optical fiber 7 and a pair coupling mechanism 8, naked fine 6 two ends are connected with two tail optical fibers 7 respectively, tail optical fiber 7 other end butt coupling device 8, article four, the fault optical fiber link pattern of being respectively uses fault optical fiber link 2, splice loss, splice attenuation fault optical fiber link 3, overbend fault optical fiber link 4 and connector pollution fault optical fiber link 5 with, wherein, the trouble spot that pattern uses fault optical fiber link 2 with 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, is welded together by fibre core poor for cutting technique, causes splice loss, splice attenuation excessive, the cable outer diameter that after being tangled by optical fiber in overbend fault optical fiber link 4, fiber bending radius is greater than 2 times does not meet optical fiber total internal reflection and causes 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 being inserted in coupling mechanism corresponding to link 8 causes loss excessive again, and the fiber connector of pollution also can be arranged on to extend in optical cable and insert on the connector of coupling mechanism 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.
Also be provided with fiber management tray 11 in fibre distribution frame, on it, plug-in mounting has longitudinal plate 11a of wire inlet/outlet hole, and the side of plate is provided with winding frame 11b.Fiber management tray 11 quantity is two, is 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, fibre melting disc 12a are 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 one, 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 inspection fiber port, use optical fiber microexamination cleanliness again after adopting anhydrous alcohol cleaning end face dirt, fiber optic test instrument 16 carries out self-inspection display port connection to self coupling mechanism well can be tested;
Step 3, connecting fiber test instrumentation 16, transmitting optical cable 17 and fault optical fiber link, optical fiber instrument 16 is OTDR, transmitting optical cable 17 one end is connected with the emission port of OTDR, coupling mechanism 8 interface that the other end is corresponding with fault optical fiber link connects, as preferably, another coupling mechanism 8 of fault optical fiber link is also connected with extended fiber link 13 by wire jumper 20.Wherein, launching optical cable 17 is 100m single mode emission optical cable, and naked fine part is coiled on the spindle of fiber-optic cable 19 of disk 18, and two ends connect cephalic disc on disk 18 surface;
Step 4, measuring fiber link, optical time domain reflectometer is selected test item start test;
Step 5, analytical test result, after having tested, optical time domain reflectometer shows current test result for " failure " or " passing through ", carry out checking to fault and locate, end section inspection, optical time domain reflectometer trace analysis, loss certification, length certification or the management of LinkWare test result.
Repeat above step, each fault optical fiber link and normal optical fiber link 14 can be tested respectively, according to the further analytical test result of standard GB/T 50312-2007, OTDR curve occurs that false increasing is overflow, test from the other end again, occur that relaxation phenomenon can be judged to be that fiber mode does not mate i.e. pattern and uses fault with; Test result display decay, more than 0.75dB, is connector pollution decay and connector pollution fault; OTDR test event result be a loss value more than 0.3dB, fault is splice loss, splice attenuation or curved transitions, checks OTDR curve further, shortwave and long wave loss value roughly equal be splice loss, splice attenuation, long wave loss is obviously greater than shortwave loss then for curved transitions loss.Fiber failure of the present invention detects the using method of instructional device, position of failure point is found according to test result, and solve corresponding failure, each fault optical fiber link is independent, be independent of each other, again 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, analyzing and positioning carried out to fault and finds solution.
Above-described is only some embodiments of the present invention, and 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, these all belong to protection scope of the present invention.
Claims (10)
1. a fiber failure detects instructional device, it is characterized in that: the optical fiber link comprising fibre distribution frame (1) and be placed in fibre distribution frame (1), every bar optical fiber link includes naked fibre (6), article two, tail optical fiber (7) and a pair coupling mechanism (8), naked fibre (6) two ends are connected with two tail optical fibers (7) respectively, tail optical fiber (7) other end butt coupling device (8), described optical fiber link comprises four fault optical fiber links, the pattern of being respectively uses fault optical fiber link (2) with, splice loss, splice attenuation fault optical fiber link (3), overbend fault optical fiber link (4) and connector pollute fault optical fiber link (5),
Described optical fiber link also comprises extended fiber link (13), and fault optical fiber link coupling mechanism is connected with extended fiber link (13) by wire jumper (20).
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), 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 the 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), 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: the trouble spot that described pattern uses fault optical fiber link (2) with 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 described splice loss, splice attenuation fault optical fiber link (3) is arranged on the welding section of corresponding optical fiber tempreature bulb (12b), is welded together by the fibre core of cutting technique difference, causes splice loss, splice attenuation excessive;
The cable outer diameter that after being tangled by optical fiber in described overbend fault optical fiber link (4), fiber bending radius is greater than 2 times does not meet optical fiber total internal reflection and causes fibre loss excessive;
The trouble spot that described connector pollutes fault optical fiber link (5) is arranged on transmitting optical cable connector, fiber connector artificial pollution being inserted in coupling mechanism corresponding to link causes loss excessive again, or the fiber connector polluted is arranged on to extend in optical cable and inserts on the connector of coupling mechanism.
6. 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), normal optical fiber link (14) is for finding position of failure point according to test result, and solve corresponding failure, each fault optical fiber link is independent, be independent of each other, again by contrasting with the test result of this normal optical fiber link (14), thus be more profoundly familiar with and grasp the most common failure of optical fiber link, analyzing and positioning is carried out to fault and finds solution.
7. the fiber failure any one of claim 1 ~ 6 described in claim detects instructional device, it is characterized in that: described fibre distribution frame (1) is drawer structure, (1) is also provided with cover plate to fibre distribution frame, cover plate is transparent resin glass, and corresponding component names mark (15) is posted on all parts side of described fibre distribution frame (1).
8. the fiber failure any one of claim 1 ~ 6 as described in claim detects a using method for instructional device, comprises the following steps:
Step one, fiber optic calibration test instrumentation (16) and parameters, described fiber optic test instrument (16) is optical time domain reflectometer OTDR;
Step 2, clean and inspection fiber port;
Step 3, connecting fiber test instrumentation (16), transmitting optical cable (17) and fault optical fiber link;
Step 4, measuring fiber link;
Step 5, after having tested, analytical test result is end section inspection, OTDR trace analysis, loss certification, length certification or the management of LinkWare test result,
Position of failure point is found according to test result, and solve corresponding failure, each fault optical fiber link is independent, be independent of each other, again 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, analyzing and positioning is carried out to fault and finds solution.
9. fiber failure according to claim 8 detects the using method of instructional device, it is characterized in that:
Test each fault optical fiber link and normal optical fiber link (14) respectively, according to standard GB/T 50312-2007 analytical test result:
OTDR curve occurs that false increasing is overflow, then tests from the other end, occurs that relaxation phenomenon can be judged to be that fiber mode does not mate i.e. pattern and uses fault with;
Test result display decay, more than 0.75dB, is connector pollution decay and connector pollution fault;
OTDR test event result be a loss value more than 0.3dB, fault is splice loss, splice attenuation or curved transitions,
Check OTDR curve further, shortwave and long wave loss value roughly equal be splice loss, splice attenuation, long wave loss is obviously greater than shortwave loss then for curved transitions loss,
In described step 2, the clean and inspection of fiber port uses optical fiber microexamination cleanliness again after adopting anhydrous alcohol cleaning end face dirt;
In described step 3, connecting fiber test instrumentation (16), transmitting optical cable (17) and fault optical fiber link are connected with the emission port of fiber optic test instrument (16) one end of launching optical cable (17), other end coupling mechanism (8) interface corresponding to fault optical fiber link connects, launching optical cable (17) is 100m single mode emission optical cable, naked fine part is coiled on the spindle of fiber-optic cable (19) of a disk (18), and two ends connect cephalic disc on disk (18) surface.
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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| CN103996347B (en) * | 2014-05-27 | 2016-08-17 | 西安开元电子实业有限公司 | A kind of optical fiber distributing termination experiment instrument |
| CN106385282B (en) * | 2016-09-08 | 2019-04-23 | 一诺仪器（中国）有限公司 | Optical path detection method and system inside OTDR |
| CN108777096B (en) * | 2018-04-24 | 2020-12-01 | 山东职业学院 | SDH looped network transmission optical fiber link construction maintenance teaching device and use method |
| US11327264B2 (en) * | 2019-09-05 | 2022-05-10 | Telescent Inc. | Fiber optic tensioning reel sub-system in robotic fiber optic cross-connect systems, sub-systems, devices and methods |
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