Thaum tsis muaj zog tam sim no tej yaam num ntsib kev sib kis mus ntev, fiber ntau optics feem ntau siv. Vim hais tias qhov kev ncua deb ntawm optical fiber ntau yog ntev heev, feem ntau, qhov kev ncua deb ntawm ib hom fiber ntau yog ntau tshaj 10 kilometers, thiab kev sib kis deb ntawm ntau hom fiber ntau tuaj yeem ncav cuag li 2 kilometers.
Hauv fiber ntau optic tes hauj lwm, peb feem ntau siv fiber ntau optic transceivers. Yog li, yuav ua li cas txuas fiber ntau optic transceivers? Cia wb mus saib ua ke.
Ua ntej, lub luag haujlwm ntawm fiber ntau optic transceivers
① Optical fiber ntau transceiver tuaj yeem txuas ntxiv qhov sib kis ntawm Ethernet thiab txuas ntxiv qhov kev pab cuam lub vojvoog ntawm Ethernet.
② Optical fiber ntau transceiver tuaj yeemhloovnruab nrab ntawm 10M, 100M lossis 1000M Ethernet hluav taws xob interface thiab optical interface.
③ Siv fiber ntau optic transceivers los tsim ib lub network yuav txuag tau lub network peev.
④ Optical fiber transceivers ua rau kev sib txuas ntawm servers, repeaters, hubs, terminals thiab terminals sai dua.
⑤ Lub optical fiber ntau transceiver muaj ib tug microprocessor thiab kev kuaj mob interface, uas muaj peev xwm muab ntau yam ntaub ntawv txuas cov ntaub ntawv kev ua tau zoo.
Qhov thib ob, lub transceiver twg yog qhov optical transceiver muaj thiab qhov twg nws tau txais?
Thaum siv optical fiber transceivers, ntau tus phooj ywg yuav ntsib cov lus nug:
1.Do optical fiber transceivers yuav tsum tau siv ua khub?
2.Puas yog qhov optical fiber transceiver muab faib ua ib qho rau kev txais thiab ib qho rau kev xa tawm? Lossis tsuas yog siv ob lub optical transceivers los ua ib khub?
3. Yog hais tias lub optical fiber transceivers yuav tsum tau siv ua khub, nws puas tsim nyog tias lawv yog cov tib hom thiab qauv? Los yog muaj peev xwm siv tau los ua ke?
Teb: Optical fiber ntau transceivers feem ntau yog siv nyob rau hauv khub li photoelectric hloov dua siab tshiab pab kiag li lawm, tab sis nws kuj tseem ua tau rau khub fiber optic transceivers nrog fiber ntau.hloov, fiber ntau optic transceivers thiab SFP transceivers. Nyob rau hauv txoj cai, ntev li ntev raws li qhov optical kis tau tus mob wavelength yog tib yam Lub teeb liab encapsulation hom ntawv yog tib yam thiab ob qho tib si txhawb ib tug tej yam kev cai kom ua tiav kev sib txuas lus optical fiber.
Feem ntau, ib hom dual-fiber (ob fibers yuav tsum tau siv rau kev sib txuas lus ib txwm) transceivers tsis muab faib rau hauv qhov kawg thiab qhov kawg tau txais, thiab siv tau ntev li ntev tau raws li lawv tshwm sim ua khub.
Tsuas yog ib leeg-fiber transceiver (ib fiber ntau yuav tsum tau rau kev sib txuas lus ib txwm) yuav muaj qhov kawg xa tawm thiab qhov kawg tau txais.
Hauv lwm lo lus, tus nqi sib txawv (100M thiab Gigabit) thiab qhov sib txawv wavelengths (1310nm thiab 1300nm) tsis tuaj yeem sib txuas lus. Tsis tas li ntawd, txawm tias ib qho fiber ntau transceiver thiab dual fiber ntau ntawm tib hom yog ua khub, nws tsis tuaj yeem sib txuas lus nrog ib leeg. Kev sib tshuam.
Yog li cov lus nug yog, dab tsi yog ib qho fiber ntau transceiver thiab dab tsi yog dual fiber transceiver? Qhov txawv ntawm lawv yog dab tsi?
Dab tsi yog ib qho fiber ntau transceiver? Dab tsi yog dual-fiber transceiver?
Ib leeg-fiber transceiver yog hais txog ib hom optical cable. Ib leeg-fiber transceiver siv tsuas yog ib qho tseem ceeb thiab ob qhov kawg txuas nrog rau cov tub ntxhais no. Cov transceivers ntawm ob qhov kawg siv qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv, yog li lawv tuaj yeem raug xa mus rau hauv ib qho tseem ceeb teeb liab.
Lub dual-fiber transceiver siv ob lub cores, ib qho rau kev sib kis thiab ib qho rau kev txais tos, thiab ib qho kawg yuav tsum tau muab tso rau ntawm qhov kawg, thiab ob qhov kawg yuav tsum tau hla.
1. Ib leeg fiber ntau transceiver
Ib leeg-fiber transceiver yuav tsum siv ob qho tib si kis tau tus mob thiab qhov tau txais kev ua haujlwm. Nws siv lub wavelength division multiplexing thev naus laus zis los xa thiab tau txais ob lub teeb liab kho qhov muag nrog cov wavelengths sib txawv ntawm ib qho fiber ntau.
Yog li ntawd, ib leeg-hom ib leeg-fiber transceiver yog kis los ntawm cov tub ntxhais kho qhov muag fiber ntau, yog li kev xa tawm thiab tau txais lub teeb kis tau los ntawm cov tub ntxhais fiber ntau tib lub sijhawm. Hauv qhov no, kom ua tiav kev sib txuas lus ib txwm, yuav tsum siv ob lub wavelengths ntawm lub teeb kom paub qhov txawv.
Yog li ntawd, lub optical module ntawm ib hom ib leeg-fiber transceiver muaj ob wavelengths ntawm emitted lub teeb, feem ntau 1310nm / 1550nm. Ua li no, muaj qhov sib txawv ntawm ob qhov kawg ntawm ib khub ntawm transceivers:
Lub transceiver ntawm ib kawg kis 1310nm thiab tau txais 1550nm.
Lwm qhov kawg yog emitting 1550nm thiab tau txais 1310nm.
Yog li nws yooj yim rau cov neeg siv kom paub qhov txawv, thiab feem ntau siv cov ntawv hloov.
A-terminal (1310nm / 1550nm) thiab B-terminal (1550nm / 1310nm) tau tshwm sim.
Cov neeg siv yuav tsum siv AB khub, tsis yog AA lossis BB kev sib txuas.
AB kawg tsuas yog siv rau ib leeg fiber ntau optic transceivers.
2.Dual fiber ntau transceiver
Lub dual-fiber transceiver muaj qhov chaw nres nkoj TX (chaw nres nkoj) thiab RX chaw nres nkoj (tau txais chaw nres nkoj). Ob qhov chaw nres nkoj kis ntawm tib lub wavelength ntawm 1310nm, thiab kev txais tos kuj yog 1310nm. Yog li ntawd, ob qho tib si optical fibers siv nyob rau hauv kev sib txuas yog sib txuas.
3. Yuav ua li cas paub qhov txawv ib leeg fiber ntau transceiver los ntawm dual fiber transceiver?
Tam sim no muaj ob txoj hauv kev kom paub qhov txawv ntawm ib leeg-fiber transceivers los ntawm dual-fiber transceivers.
①Thaum lub optical transceiver yog embedded nrog ib tug optical module, optical transceiver muab faib ua ib leeg-fiber transceiver thiab dual-fiber transceiver raws li tus naj npawb ntawm cores ntawm kev sib txuas optical fiber jumper. Lub linearity ntawm optical fiber jumper txuas nrog ib leeg-fiber transceiver (txoj cai) yog ib qho tseem ceeb ntawm fiber ntau, uas yog lub luag haujlwm rau kev xa thiab tau txais cov ntaub ntawv; Lub linearity yog ob cores. Ib qho tseem ceeb yog lub luag haujlwm rau kev xa cov ntaub ntawv thiab lwm qhov tseem ceeb yog lub luag haujlwm rau kev txais cov ntaub ntawv.
②Thaum lub optical fiber ntau transceiver tsis muaj ib tug embedded optical module, nws yog tsim nyog los paub qhov txawv ntawm ib tug fiber ntau transceiver thiab ib tug dual fiber transceiver raws li lub inserted optical module. Thaum ib leeg-fiber bidirectional optical module tau muab tso rau hauv qhov muag fiber ntau transceiver, uas yog, lub interface yog hom simplex, optical fiber transceiver yog ib leeg-fiber transceiver (daim duab txoj cai); Thaum ib tug dual-fiber bidirectional optical module muab tso rau hauv lub optical fiber transceiver, uas yog, thaum lub interface yog ib tug duplex hom, qhov no transceiver yog ib tug dual-fiber transceiver (sab laug daim duab).
Plaub, qhov taw qhia thiab kev sib txuas ntawm optical fiber transceiver
1.Indicator ntawm optical fiber transceiver
Rau qhov taw qhia ntawm optical fiber transceiver, peb muaj ib tsab xov xwm dhau los mob siab rau cov ntsiab lus no.
Ntawm no peb rov saib dua los ntawm daim duab kom pom tseeb dua.
2.Fiber optic transceiver kev twb kev txuas
