Common Troubleshooting of Optical Receivers
Qhov ua tsis tiav ntawm cov khoom siv kho qhov muag tuaj yeem muab faib ua peb pawg: ib qho yog qhov tsis ua haujlwm ntawm cov khoom siv hluav taws xob, lwm qhov yog qhov tsis ua haujlwm ntawm cov khoom siv kho qhov muag, thiab qhov thib peb yog qhov tsis ua haujlwm ntawm cov khoom siv kho qhov muag. Peb qhov chaw no tau txuas nrog ib leeg hauv tag nrho cov kab ke kho qhov muag. Txawm hais tias qhov twg tsis ua haujlwm, nws yuav ua rau qhov chaw kho qhov muag tsis muaj teeb liab, lossis qee zaum tsis muaj teeb liab, thiab cov teeb liab qis heev. Cov hauv qab no yog kev tsom xam thiab kev kho ntawm qee qhov kev ua txhaum;
Fault 1: Cov neeg siv hauv qab qhov chaw kho qhov muag qee zaum qhia cov cim qhia tias qee zaum tsis muaj nyob.
Kev tshuaj xyuas thiab kev ua haujlwm; ua ntej, xyuas qhov teeb meem ntawm lub hwj chim mov, xyuas lub 220V fais fab mov taw tes rau 60V fais fab mov, thiab lub hwj chim mov mus rau lub optical receiver. Tag nrho cov connectors nyob rau hauv seem no ntawm kab yuav tsum tau ua tib zoo xyuas. Thaum lub connector muaj ib tug me ntsis kev sib cuag, nws yuav tshwm sim Ignition ua ib tug oxygen txheej, tsub kom qhov kev tiv thaiv, thiab ces ua rau lub optical receiver ua hauj lwm intermittently. Lub sijhawm no, txawm tias lub teeb liab ua haujlwm, qhov zoo yog qhov tsis zoo. Thib ob, xyuas qhov grounding ntawm qhov chaw kho qhov muag. Yog tias tsis muaj av lossis cov av tsis zoo, lossis nws nyob ze rau ntawm cov xaim xaim, tom qab lub sijhawm ntev ntawm kev sib sau, cov hluav taws xob muaj zog zoo li qub kuj tseem tuaj yeem ua rau ntawm cov hlau strand, uas yuav ua rau lub teeb liab tsis ua haujlwm hauv qhov chaw kho qhov muag. Tam sim no thiab tom qab ntawd.
Fault 2: Lub hwj chim ntawm qhov chaw nres tsheb kho qhov muag yog qhov qub, tab sis cov teeb liab tso zis tsawg heev los yog tsis muaj teeb liab.
Kev tshuaj xyuas thiab kev ua haujlwm; thaum ntsib qhov teeb meem no, thawj zaug nug txog cov teeb liab tej yam kev mob ntawm lwm qhov chaw kho qhov muag nqa los ntawm lub front-end optical transmitter. Yog hais tias lub teeb liab ntawm lwm qhov chaw kho qhov muag kuj tsawg heev los yog tsis muaj teeb liab, ces xyuas cov transmitter nyob rau hauv lub computer chav tsev thiab cov kev ua hauj lwm ntawm lub pem hauv ntej-kawg cov khoom, yog hais tias cov khoom pem hauv ntej-kawg yog ib txwm, nws yog tsim nyog los soj ntsuam. txoj kev kho qhov muag cable los ntawm ceg taw tes ntawm qhov chaw kho qhov muag mus rau pem hauv ntej-kawg kom pom tias nws puas los ntawm sab nraud. Yog hais tias qhov chaw kho qhov muag cable routing ib puag ncig yog qhov nyuaj heev, lossis cov kav dej hauv av tau tso, nws tsis tuaj yeem kuaj pom qhov pom, thiab nws yuav tsum siv cov cuab yeej ntsuas los txiav txim. Piv txwv li; siv lub breakpoint detection muaj nuj nqi ntawm OTDR los nrhiav qhov tseeb txoj hauj lwm ntawm breakpoint thiab teeb meem.
Fault 3, qhov chaw nres tsheb kho qhov muag muaj cov zis, tab sis cov teeb liab qis.
Kev tshuaj xyuas thiab kev ua haujlwm; Kev tshawb nrhiav los ntawm qhov kawg ntawm qhov chaw kho qhov muag, raws li daim duab tom qab OTDR nrhiav pom, pom qhov tseeb ntawm qhov chaw kho qhov muag nrog qhov loj attenuation ntawm daim duab, thiab xyuas seb puas muaj lub nplhaib txoj kab uas hla ntawm cov kab hluav taws xob nyob ze los ntawm kab. raug ntaus los yog hooked ua me, thiab txawm tias lub fiber optic cable tau twisted. Qhov kev ua tsis tiav no feem ntau tsuas yog xav tau rov qab kho qhov muag cable mus rau nws lub xeev qub, thiab lub teeb liab tuaj yeem rov qab mus rau qhov qub.
Fault 4, optical receiver tsis muaj RF tso zis.
Kev tshuaj xyuas thiab kev ua haujlwm; Tom qab kuaj xyuas cov plaub hau kho qhov muag, routing, thiab cov khoom siv hluav taws xob yog qhov qub, nws yog ib qho tsim nyog yuav tsum tau kuaj xyuas qhov optical receiver nws tus kheej. Ua ntej ntawm tag nrho cov, tig rau lub optical receiver saib seb puas muaj dej ingress, thiab yog hais tias muaj ib tug burning tsw. Vim hais tias, thaum lub optical receiver nkag los yog infiltrates dej, raws li qhov kub thiab txias sab hauv thiab sab nraum lub tshuab hloov, cov dej me me yuav tsim nyob rau hauv lub tshuab, uas yuav yooj yim ua rau ib tug luv luv Circuit Court board thiab ua rau sparks tshwm sim. Lub sijhawm no, yuav muaj teeb meem qee zaus, thiab tom qab ib lub sijhawm, cov khoom siv hluav taws xob yuav hlawv, thiab yuav tsis muaj teeb meem kiag li. Tom qab ntawd txheeb xyuas qhov tau txais lub zog kho qhov muag thiab qhov xwm txheej hloov pauv photoelectric. TR series optical receiver muaj lub tswb ntsuas rau qhov muag pom teeb liab poob. Thaum lub teeb qhib, nws txhais tau hais tias lub zog nkag qis dua -6.5dBm. Siv lub multimeter los ntsuam xyuas tus nqi hluav taws xob input ntawm lub teeb liab optical input ntawm 5V / mW. Tom ntej no, xyuas lub hwj chim mov nyob rau hauv lub optical receiver. Qee lub sij hawm lub optical txais module ua haujlwm ib txwm, tab sis qhov hluav taws xob teeb liab amplifying module tsis ua hauj lwm, vim hais tias DC kab muab lub amplifying module yog faulty. Hom kev ua tsis tiav no feem ntau yog tshwm sim los ntawm DC kev sib txuas ntawm sab sauv thiab sab qis yog crushed thaum lub casing yog fastened, los yog cov casing screws tsis nruj, thiab cov dej nkag mus thiab luv luv Circuit Court thiab hlawv tawm lub Circuit Court.
Fault 5, cov zis theem ntawm lub optical receiver yog tsawg.
Kev tshuaj xyuas thiab kev ua haujlwm; Peb qhov xwm txheej yuav tshwm sim thaum qhov tso zis theem ntawm cov khoom siv kho qhov muag tsawg;
[1] Ob qhov siab thiab qis kawg cov cim tsis zoo. Cov laj thawj tseem ceeb ntawm qhov kev ua tsis tiav no yog; 1. Kev sib cuag tsis zoo lossis av ntawm lub taub hau fiber ntau APC; 2. Qhov tsis kam ntawm qhov nce kev hloov pauv potentiometer lossis ntxig ua kom loj dua lossis qhov tsis zoo; 3. Qhov kev ua tau zoo ntawm lub amplifier module deteriorates.
[2] Lub teeb liab high-end yog qhov qub, thiab lub teeb liab qis kawg yog qhov tsis zoo. Qhov laj thawj tseem ceeb rau qhov tshwm sim no yog kev sib cuag tsis zoo tshwm sim los ntawm oxidation thiab corrosion ntawm qhov chaw nres nkoj tso zis, nce, thiab sib npaug hloov kho plug-in. Thiab vim yog qhib Circuit Court ntawm cov khoom sib npaug.
[3] Lub teeb liab qis kawg yog qhov qub, thiab lub teeb liab siab kawg yog qhov tsis zoo. Cov laj thawj tseem ceeb yog: kev ua haujlwm ntawm lub tshuab hluav taws xob ua haujlwm tsis zoo, Q tus nqi ntawm cov khoom siv hluav taws xob sib nqus ntawm cov khoom siv hluav taws xob tsawg tsawg, thiab cov khoom siv sab hauv ntawm lub tshuab kho qhov muag cuam tshuam los ntawm cov dej noo. Lub airtightness ntawm lub teb-hom optical receiver yuav tsum tau xyuas ntau zaus los tiv thaiv kev nkag los ntawm cov dej nag.
Fault 6, lub teeb liab tso zis ntawm optical receiver tsim kev sib nrig sib hloov thiab moiré cuam tshuam.
Kev tshuaj xyuas thiab kev ua haujlwm; Yog vim li cas yog qhov nce hauv sab hauv siab dhau lawm, cov zis theem yog overloaded, lub decoupling capacitor yog qhib los yog tsis siv, thiab lub shielding yog phem. Nws tuaj yeem ua tau los ntawm kev hloov cov khoom sib npaug, thiab lub decoupling capacitor. Yog tias nws tsis raug, lub amplifier module yuav tsum tau hloov.
Fault 7, qhov tso zis theem ntawm optical receiver tsis ruaj khov.
Kev tshuaj xyuas thiab kev kho mob: Feem ntau ntawm qhov ua rau tsis ua haujlwm zoo li no yog xoob plug-ins thiab kev sib cuag tsis zoo. Cov pob qij txha ntawm qee cov khoom muaj feem cuam tshuam tsis muaj zog, tsis muaj zog, qhov ntsuas hluav taws xob thaiv hluav taws xob, lub tshuab hluav taws xob hloov pauv, tau txais plug-in thiab lwm yam tsis zoo-capacitance Cheebtsam muaj kev ua haujlwm tsis zoo, kev ua haujlwm tsis ruaj khov, thiab lwm yam, ua rau cov teeb liab tso tawm kom hloov pauv.
Fault 8: Tom qab lub optical receiver raug ntaus los ntawm xob laim, cov zis theem qis.
Kev tshuaj xyuas thiab kev ua haujlwm; Thaum cov kab sab nraud raug xob laim, nws feem ntau ua rau muaj kev puas tsuaj rau lub hwj chim ntawm cov khoom siv kho qhov muag. Cov khoom uas yooj yim puas yog xob laim ntes, transformer, lim capacitor, voltage regulator block thiab lwm yam khoom. Qhov txhaum ua rau cov zis qis qis yog cov teeb liab channel thaiv lossis luv Circuit Court. Xyuas cov zis theem ntawm photoelectric hloov dua siab tshiab module BGE887BO. Thaum lub zog input optical yog -1dB (1310nm), qib yuav tsum nyob ib ncig ntawm 70dB. Tom qab sib npaug thiab attenuation, lub input fais fab Amplifying module BGY785A, theem ntawm cov zis tus pin ntawm lub amplifying module yog 98dB, txuas nrog lub rooj zaum F los ntawm kev faib tawm, tshem tawm cov core board, thiab pom tias txoj kab txuas ntawm cov zis F lub rooj zaum thiab lub network faib tau raug hlawv, thiab cov hluav taws xob hluav taws xob hluav taws xob tau raug hlawv thiab luv luv Circuit Court. Rewind lub tis coil, solder lub breakpoint ntawm lub rooj tsavxwm Circuit Court, thiab lub tshuab kho qhov muag ua haujlwm rov qab mus rau qhov qub.
Fault 9, cov teeb liab tso zis ntawm lub optical receiver tsis ruaj khov thiab hloov tsis tu ncua.
Kev tshuaj xyuas thiab kev ua haujlwm; thawj zaug xyuas lub teeb-emitting thiab lub teeb-receiving khoom. Tshem tawm qhov ua rau ntawm lub cuab yeej. Raws li cov neeg siv daim ntawv ntsuam xyuas, tom qab muaj cua daj cua dub, qhov tshwm sim ntawm kev nce thiab nqis feem ntau tshwm sim. Raws li kev txheeb xyuas ntawm qhov xwm txheej; qhov txhaum point yog feem ntau yuav nyob rau hauv lub splice box. Txheeb xyuas raws kab, pom tias muaj ib lub thawv dai splicing uas viav vias ntau thaum cua txias. Qhib thiab xyuas, nws pom tias cov clips uas nias lub cable hauv lub thawv yog xoob, cov kab hluav taws xob kho qhov muag tuaj yeem tig tau, cov fiber ntau optical tawm ntawm lub qhov, thiab yog qhov txhab ntawm lub hauv paus kho cov ntsia hlau. Raws li cov khoom siv kho qhov muag ntawm ob qho kawg ntawm lub thawv tig, cov fiber ntau optical qhwv ntawm lub hauv paus ntsia hlau ncab thiab hloov pauv zoo li lub caij nplooj ntoos hlav, thiab lub zog attenuation ntawm optical fiber ntau ntxiv ua rau cov teeb liab tsis ruaj khov. Rov nias lub optical cable thiab reel lub optical fiber, thiab cov zis theem ntawm lub tshuab kho qhov muag yog ib txwm.
