Los saib niaj hnub ntawm cov khoom sib txuas hauv network, tib neeg yuav pom cov chaw nres nkoj sib txawv rau cov sib txuas sib txawv. Piv txwv li, peb siv USB interface hauv xov tooj ntawm tes los siv RJ45 chaw nres nkoj hauv tooj liab xaim txuas. Txawm li cas los xij ntawm SFP chaw nres nkoj? SFP cov chaw nres nkoj yog qhov cuam tshuam txuas nrog ntawm ntau yam, suav nrog cov hloov hluav taws xob Gigabit, SFP keyboards, thiab network interface phaib (NIC). Hnub no peb yuav tham txog LC SFP transceiver thiab SC SFP transceiver.
Daim duab 1: SFP Transceiver
SC Connector Yog Dab Tsi?
SC connector tau tsim nyob hauv nruab nrab xyoo 1980s. Nws yog ib qho ntawm cov thawj txuas nkag mus rau tom khw tom qab cov tsos ntawm ceramic cores. Nrog lub caij nplooj ntoo hlav caij nplooj ntoos hlav muaj suab nrov ntawm lub nplhaib rub rub mus rau qhov txuas txuas kawg, SC qee zaum hu ua "square txuas". Tom qab ntawd nws tau nrov nrog txo nqi tsim khoom. Vim tias nws ua tau zoo heev, nws nyob ntau dua 10 xyoo hauv kev ua haujlwm ntawm cov kab hluav taws xob, thiab tsuas yog ST sib tw nrog nws. Niaj hnub no nws tseem yog qhov txuas thib ob tshaj plaws txuas rau polarization tswj kev siv. SC yog tsim rau cov ntaub ntawv sib txuas lus thiab kev siv xov tooj sib txuas lus, suav nrog taw tes thiab taw tes rau lub ntsej muag.
Daim Duab 2: SC Txuas
LC Connector Yog Dab Tsi?
LC connector yog suav hais tias yog cov hloov chaw niaj hnub rau SC txuas, thiab cov lus qhia ntawm LC txuas tsis yooj yim dua. Raws li lub laub-txuas txuas, LC muaj latches hloov ntawm SC txhav tas daim hlau. Dhau li nws muaj cov nplhaib me dua, uas hu ua cov txuas me me. Ib nrab ntawm tus hneev taw ntawm SC txuas ua rau nws nrov hauv cov ntaub ntawv kev sib txuas lus thiab lwm yam kev siv siab ua lub thaj. Tag nrho cov no yog vim nws qhov loj me thiab kev sib koom ua ke ua rau nws yog qhov kev xaiv zoo rau kev sib luag khib / vaj huam sib luag.
Daim Duab 3: LC Txuas
SFP LC Dab Tsi Yog Dab Tsi Thiab SFP SC Yog Dab Tsi?
LC SFP transceiver yog hais txog 1000 BASE SFP transceiver nrog LC txuas, suav nrog 1000 BASE-SX SFP, 1000 BASE-LX SFP transceiver module thiab lwm yam. Lub SC SFP transceiver yog 1000BASE SFP transceiver nrog SC cov khoom sib txuas.
SFP SC vs LC: Yuav Ua Li Cas Lawv Sib Txawv Ib Leeg Txawv Ib Leeg
Tom qab muaj kev nkag siab zoo ntawm SC thiab LC txuas, lo lus nug txuas ntxiv yog: qhov txawv ntawm SC thiab LC yog dab tsi? Feem ntau, qhov sib txawv ntawm LC thiab SC cov khoom sib txuas yog qhov loj me, kev ua thiab keeb kwm txuas.
Qhov Loj: LC yog ib nrab ntawm qhov loj ntawm SC. Qhov tseeb, SC adapter tau raws nraim qhov loj tib yam nkaus li duplex LC adapter. Yog li, LC tau dhau los ua qhov ntau dua thiab nyiam dua hauv qhov chaw haujlwm nruab nrab. Vim tias nyob hauv lub hauv paus ua haujlwm, qhov ceev ntawm ntim yog qhov tseem ceeb tus nqi.
Kev tuav: Txawm tias muaj qhov tshiab heev, qhov tiag "thawb rub LC" muaj, nrog lub zog tuav zoo ib yam nrog SC. SC yog qhov tiag “laub rub txuas”, thiab LC yog tus “txuas txuas”.
Lub keeb kwm ntawm lub txuas: LC yog "yau dua" dua li SC, thaum SC tab tom kis dav thoob ntiaj teb dua LC. LC, li cas los xij, tab tom txais kev.
Raws li peb txhua tus paub, qhov sib txawv loj ntawm SFP LC thiab SFP SC transceiver lus dag hauv qhov txuas. Ntawm cov sib txawv ntawm SFPs nrog LC txuas, 1000BASE-SX SFP thiab 1000BASE-LX SFP transceivers feem ntau siv. Peb coj ob tus neeg pauv khoom no ua piv txwv. Lub 1000BASE-SX SFP LC transceiver yog qhov haum rau multimode fiber ntau cov kab hluav taws xob tsawg dua 550 meters. Lub LC SFP LX transceiver yog qhov tsim nyog rau 10km ib hom kev kho qhov muag cov duab hluav taws xob, thiab txhawb multimode fiber. 1000BASE-SX LC SFP transceiver tus qauv yog tsim los txhawb cov nqi qis multimode optical fiber ntau ua haujlwm hauv kab rov tav thiab luv luv ntev daim ntawv thov caj qaum. LC SFP LX tus qauv transceiver tau tsim los txhawb lub ntsej muag multimode ntev dua cov kab ke kho qhov muag fiber ntau thiab ib hom tib lub tsev kawm ntawv sab nraub qaum. Tus nqi ntawm LC SFP LX transceiver siab tshaj li ntawm 1000BASE-SX SFP LC transceiver.
Xaus
Cov kev sib txuas lus tam sim no thiab yav tom ntej xav tau nrawm nrawm, ua haujlwm siab thiab ruaj ntseg. Txhua qhov cuam tshuam loj hauv cov chaw loj yuav tsum muaj peev xwm tau txais thiab xa cov ntaub ntawv yam tsis muaj kev cuam tshuam sab nraud. Ob qho SC thiab LC SFP transceivers yog tsim los kom ua tiav qhov kev sib kis no. Koj tuaj yeem xaiv seb LC SFP transceiver lossis SC SFP transceiver raws li koj cov kev xav tau. Yog tias koj muaj qhov xav tau rau SFP transceiver, FOCC tuaj yeem yog koj qhov kev xaiv zoo.