Rau kev sib txuas lus kho qhov muag, optical interfaces ntawm cov cuab yeej txuas nrog los ntawm fiber ntau optical.Piv txwv li, kev sib txuas ntawm OLT thiabONU(feem ntau hais lus, SFP kho qhov muag module yuav tsum tau muab kev sib txuas ntawm optical interface ntawm OLT), thiab cov ntaub ntawv xa mus ntawm ob lub optical fiber transceivers kuj yog ua los ntawm fiber ntau optical, yog li lub npe ntawm lawv cov interface ua cov kev paub yooj yim tshaj plaws hauv kev sib txuas lus kho qhov muag.
Muaj ob hom optical fiber interfaces: los ntawm cov qauv thiab los ntawm lub ntsej muag kawg.Ob qhov kev faib tawm no tsis yog kev sib koom ua ke, tab sis sib koom ua ke.Zoo li SC / APC hauv daim duab hauv qab no, SC yav dhau los yog ib qho kev faib tawm ruaj khov, thiab APC tom kawg yog ib qho ntawm qhov kawg kev faib tawm.
Kev faib cov qauv
1. FC round xov
Lub FC interface ntawm optical fiber muaj ib tug me ntsis tsa txoj hauj lwm, thiab FC interface ntawm lub opposite ntaus ntawv muaj ib tug sib txawv txoj hauj lwm.Ob qho yuav tsum tau ua kom sib haum.Tom qab kev sib raug zoo, ntxig rau cov khoom siv kho qhov muag thiab tig cov txheej txheem sab nrauv (txiv ntseej) kom tiav qhov kev kho.Yog hais tias lub bulge tsis ua raws li qhov sib txawv, zawm lub txiv ntoo, thiab lub teeb kis tau tus mob ntawm ob yuav muaj kev poob zoo.
Qhov zoo: Tom qab txoj haujlwm tau ua tiav thiab nruj, cov khoom siv kho qhov muag thiab cov cuab yeej txuas nrog ruaj khov.
Disadvantages: Lub plugging yog complex thiab lub installation yuav siv sij hawm ntev.
2. ST bayonet puag ncig hom
Lub taub hau ST yog kho los ntawm ib tug bayonet tom qab nws muab tso thiab tig ib nrab ntawm lub voj voog.Qhov tsis zoo yog tias nws yooj yim tawg.
3. SC bayonet square loj lub qhov ncauj
Nws feem ntau yog hais txog txoj haujlwm ruaj khov ntawm lub ntsaws thiab lub latch hom (qhov qis sab laug yog SFP optical module)
Qhov zoo: yooj yim txuas ncaj qha thiab ua haujlwm yooj yim
Qhov tsis zoo: Piv nrog FC interface, kev sib txuas tsis ruaj khov.
4. LC lub qhov ncauj me me square
LC yog me dua SC nyob rau hauv cov nqe lus ntawm fiber core thiab tsos.LC yog modular jack (RJ) latch mechanism
Xaus kev faib ntsej muag
1. PC microsphere nto sib tsoo thiab polishing
PC (lub cev tiv tauj) txhais tau hais tias kev sib cuag ntawm lub cev.Lub teeb tawm los ntawm qhov kawg ntawm cov fiber ntau optical.Txawm hais tias lub ntsej muag kawg ntawm qhov kawg yog pob tshab thiab tso cai rau lub teeb kom dhau mus, tseem yuav muaj qee qhov teeb pom kev rov qab, uas yog hu ua rov qab xav txog.Lub teeb pom kev tsis tau raws li qhov xav tau ntawm kev xa mus thiab yuav tsum tau txwv.Qhov degree ntawm inhibition yog hu ua rov qab poob.PC tau maj mam hloov los ntawm UPC.
2. UAS
UPC (Ultra Physical Contact).UPC tau txhim kho raws li PC.Lub ntsej muag kawg ntawm UPC yog khoov me ntsis.Tom qab polishing rau lub sijhawm ntev, nws muaj qhov zoo ntawm qhov tiav thiab rov qab poob zoo dua li PC qauv, tab sis nws tsis muaj zog txaus.Rov qab ntsaws thiab ntsaws yuav ua rau poob ntawm qhov zoo thiab kev ua haujlwm kawg.Cov tsos ntawm optical fiber plhaub ntawm UPC kawg lub ntsej muag yog feem ntau xiav.
3. APC nyob rau ntawm lub kaum sab xis ntawm 8 degrees thiab lub microsphere nto yog grinded thiab polished
Piv nrog rau PC, APC yuav muaj qee lub kaum sab xis inclination, thiab qhov kawg ntawm lub vojvoog ntawm lub ntxig yog polished ntawm lub kaum sab xis ntawm 8 °, yog li txo qis rov qab xav.Qhov rov qab kho qhov muag poob ntawm APC connector yog - 60dB los yog siab dua, uas yog superior rau lwm hom connectors.APC connectors tsuas tuaj yeem sib phim nrog lwm lub kaum-polished connectors, tab sis tsis yog nrog lub kaum sab xis-polished connectors, txwv tsis pub nws yuav ua rau siab poob siab.Cov tsos ntawm lub plhaub optical fiber ntau ntawm APC kawg lub ntsej muag yog feem ntau ntsuab.
Lwm yam kev taw qhia
Flange phaj
Txuas ob optical fiber ntau interfaces mus txuas ntxiv txoj kev kho qhov muag.Nco ntsoov tias APC kawg lub ntsej muag thiab UPC kawg lub ntsej muag tsis tuaj yeem sib xyaw.
Plua plav cap
Nws yog siv rau kev tiv thaiv plua plav los tiv thaiv lub ntsej muag fiber ntau kawg ntawm kev ua qias tuaj, uas yuav cuam tshuam rau cov teeb liab kho qhov muag.
