Cov1000BASE-LX SFPyog 1 Gigabit Ethernet optical transceiver ua tau tsuas yog rau ib qho - hom fiber ntau. Nws kis ntawm1310nm ua, thiab IEEE tus qauv qhia nws rau kev txuas mus txog 5 km ntawm ib qho - hom fiber ntau, thaum cov neeg muag khoom feem ntau muag qhov txuas ntxiv "LX/LH" version rated rau10km ua. Nws kuj tseem tuaj yeem khiav dhau ntawm multimode fiber ntau, tab sis tsuas yog nyob rau ntawm qhov luv luv thiab feem ntau nrog lub hom txias patch cable, yog li multimode yuav tsum tau kho raws li qhov xwm txheej tsis yog qhov qauv tsim.
Engineers ncav cuag rau 1000BASE-LX thaum lawv xav tau ib qho kev sib txuas 1G uas muaj kev vam meej thoob plaws lub tsev, tsev kawm ntawv, thiab nkag mus rau hauv tes hauj lwm yam tsis tau hloov tag nrho lub network mus rau 10G. Phau ntawv qhia no npog qhov kev ncav cuag koj tuaj yeem xav tau tiag tiag, hom fiber ntau ua haujlwm li cas, LX piv nrog 1000BASE-SX, kev hloov pauv- kev txheeb xyuas kev sib raug zoo uas txiav txim siab seb lub module puas tuaj txog (chaw nres nkoj ceev, tus neeg muag khoom coding, EEPROM, firmware, DOM), thiab yuav ua li cas los daws qhov txuas uas nyob qis qis.
1000BASE-LX SFP Cov Lus Qhia Ceev
| Yam ntxwv | 1000BASE-LX SFP |
|---|---|
| Txuj | IEEE 802.3z (1000BASE-LX) |
| Cov ntaub ntawv tus nqi | 1 Gbps (Gigabit Ethernet) |
| Lub wavelength | 1310nm ua |
| Thawj fiber ntau | Tib -mode (OS1/OS2). Multimode tsuas yog nrog hom txias thaj cable. |
| Mus txog | 5 km ntawm ib qho - hom rau tus qauv; 10 km ntawm hom LX / LH variant. |
| Txuas | Duplex LC |
| Form factor | SFP, kub -swappable |
| Saib xyuas | DOM / DDM ntawm feem ntau cov qauv (xyuas ntawm daim ntawv teev cov ntaub ntawv) |
| Zoo tshaj rau | Cov pob txha hauv tsev kawm ntawv, tsim - mus rau - tsim kev txuas, nkag mus thiab sib sau ua ke uplinks |
1000BASE-LX SFP yog dab tsi?
A 1000BASE-LX SFP yog daim ntawv me me-factor pluggable optical module rau 1 Gigabit Ethernet tshaj fiber ntau. Lub npe tawg ua peb ntu:1000 BASEyog Gigabit Ethernet ntawm 1 Gbps,LXtxhais tau tias ntev wavelength (1310 nm), thiabSFPyog lub compact, kub-swappable transceiver hom siv nyob rau hauv keyboards, routers, thiab media converters.
Hauv kev ua haujlwm nws yog qhov yooj yim. Qhov hloov pauv xa 1 Gbps hluav taws xob teeb liab mus rau hauv SFP tawb; lub module hloov mus rau hauv 1310 nm optical teeb liab; lub teeb mus rau hauv fiber ntau; thiab qhov tau txais module hloov nws rov qab rau hauv hluav taws xob Ethernet teeb liab. Qhov no tshwm sim hauv ob qho kev qhia ib zaug, muab tag nrho -duplex Gigabit Ethernet. Lub 1310 nm wavelength yog dab tsi ua rau LX haum rau ntev ib leeg -mode spans, qhov twg luv dua - wavelength 850 nm optics xws li1000BASE-SX SFPtsis yog. Ib tug qauv1000BASE-LX/LH SFP modulesiv ib tug duplex LC connector thiab, ntawm feem ntau cov qauv, txhawb cov kev kuaj mob.
Field Note:Feem ntau yog vim li cas qhov txuas LX tsis ua haujlwm ntawm qhov chaw tsis tshua muaj qhov tsis sib haum xeeb wavelength. Nws feem ntau yog thim rov qab TX/RX strands, tus neeg muag khoom coding qhov hloov pauv tsis kam, lossis LC qias neeg kawg - ntsej muag. Khaws peb qhov saum toj kawg nkaus ntawm koj daim ntawv teev npe ua ntej koj xav tias lub module nws tus kheej.
1000BASE-LX nrug: Dab tsi 5 km thiab 10 km Tiag tiag
Tus qauv 5 km thiab 10 km LX / LH variant
Qhov no yog qhov uas muaj ntau yam tsis meej pem pib. CovIEEE 802.3 tus qauvtxhais tau tias 1000BASE-LX txog li 5 km dhau ib zaug- hom fiber ntau thiab mus txog 550 m tshaj multimode fiber ntau (nrog rau hom txias thaj qaum). Hauv kev xyaum, yuav luag txhua tus neeg muag khoom xa mus txuas ntxiv "LX/LH" version ntsuas rau 10 km ntawm ib qho - hom fiber ntau, uas yog 10 km tus lej koj pom ntawm cov ntaub ntawv thiab cov npe khoom. Yog li thaum ib tug neeg hais tias "1000BASE{11}}LX ua 10 km," lawv feem ntau piav txog LX/LH cov khoom, tsis yog tus qauv hauv paus. Rau kev yuav khoom thiab txuas kev npaj, kho 10 km raws li tus neeg muag khoom tshwj xeeb kom paub meej ntawm daim ntawv teev cov ntaub ntawv, tsis yog kev lees paub ua rau tus qauv.
Siv ib zaug - hom fiber ntau rau LX thaum khiav yog ntau pua metres mus rau ob peb mais, thaum koj hla ntawm cov tsev, thaum OS1 lossis OS2 twb tau teeb tsa, thiab thaum twg koj tuaj yeem hloov kho tib txoj hauv kev kom siab dua -speed optics. Rau feem ntau 1G ntev - qhov sib txuas, ib qho - hom LX yog qhov kev xaiv tshaj plaws.
Optical zog pob nyiaj siv: vim li cas 10 km tsis yog "ib yam" 10 km
Ib qho qauv ntsuas rau 10 km yuav tsuas ncav cuag 10 km yog tias qhov txuas nyob hauv nws cov peev nyiaj kho qhov muag. Cov peev nyiaj yog qhov sib txawv ntawm qhov module qhov tsawg kawg nkaus xa hluav taws xob thiab nws qhov phem tshaj - rooj plaub tau txais rhiab heev. Txhua yam hauv txoj kev noj rau hauv nws: fiber ntau attenuation (kwv yees li 0.4 dB / km rau OS2 ntawm 1310 nm, thiab pom ntau dua ntawm cov laus fiber ntau), txhua tus khub sib txuas (li 0.3 txog 0.75 dB), thiab txhua qhov sib txuas (li 0.1 txog 0.3 dB). Ib tug huv 1 km OS2 txuas nrog ob connector khub tawm ntau cov paj. Tib lub module ntawm 9 km ntawm cov laus fiber ntau, los ntawm ntau thaj vaj huam sib luag nrog marginal connectors, tuaj yeem khiav tawm ntawm cov peev nyiaj thiab tsis tuaj yeem txuas lossis nrov nrov. Cov kab lus nyob deb qhia koj lub qab nthab nyob rau hauv cov xwm txheej zoo; qhov poob nyiaj qhia rau koj seb koj qhov txuas tshwj xeeb yuav raug kaw.
Tiag - ntiaj teb yam tseem ceeb uas txo kev ncav cuag
Txawm nyob rau hauv qhov ntsuas qhov deb, saib rau cov khoom siv qias neeg lossis kev puas tsuaj, ntau lub vaj huam sib luag lossis cov kab sib txuas, qis - zoo lossis hnub nyoog fiber ntau, lub vojvoog khoov nruj, tsis sib haum nrog cov khoom sib txuas (sib xyaw UPC thiab APC), hom fiber ntau tsis raug, thiab tau txais lub zog uas qis dhaulos yogsiab dhau lawm (dhau -tsav ib qhov txuas luv luv tuaj yeem ua rau tus neeg txais). Rau txhua qhov txuas uas koj nyiam, ntsuas lub zog kho qhov muag thiab txuas qhov poob thiab nyeem DOM / DDM qhov tseem ceeb es tsis tso siab rau daim ntawv lo ntawm lub tawb.
Fiber Hom: OS1/OS2 vs OM1–OM5
Tib -mode fiber (OS1/OS2)
Tib - hom yog txoj cai fiber ntau rau 1000BASE-LX. LX yog tsim los rau 9/125 µm ib leeg - hom fiber ntau ntawm hom tau piav qhia hauvITU-T G.652, optimized ib ncig ntawm 1310 nm xoom- thaj tsam dispersion. Hauv cov ntsiab lus cabling koj yuav pom ob qib:OS 1, feem ntau nruj- buffered sab hauv fiber ntau nrog ntau dua attenuation (nyob ib ncig ntawm 1 dB/km), thiabOS 2, feem ntau xoob- raj sab nraum zoov / tsev kawm ntawv fiber ntau nrog qis attenuation (ze li 0.4 dB/km). Rau ib lub tsev-rau-lub tsev lossis tsev kawm ntawv LX txuas, OS2 yog qhov kev xaiv niaj hnub no thiab muab qhov poob ntau tshaj - pob nyiaj siv; OS1 yog siv tau rau kev khiav hauv tsev luv luv. Yog hais tias koj xav kom sib sib zog nqus sib piv ntawmOS1 thiab OS2 ib leeg -mode fiber, qhov kev sib txawv no tsim nyog nkag siab ua ntej koj qhia txog qhov ntev.
Multimode fiber ntau thiab hom txias
1000BASE-LX tuaj yeem ua haujlwm dhau ntau hom fiber ntau, tab sis qhov no tsis yog nws qhov chaw xis nyob. Multimode muaj cov tub ntxhais loj dua, thiab 1310 nm laser tsis tso tawm sib npaug rau hauv nws, uas tsim kev sib txawv ntawm kev ncua sijhawm thiab tuaj yeem ua rau modal dispersion, instability, los yog txo mus txog. Tshaj OM1 (62.5/125) thiab OM2 (50/125) koj feem ntau xav tauhom conditioning thaj cablentawm lub transmitter, thiab txawm tias tom qab ntawd qhov ncav cuag tsuas yog txwv (550 m ntawm feem ntau raws li tus qauv). Nco ntsoov tias OM3, OM4, thiab OM5 tau ua kom zoo rau 850 nm luv- wavelength optics (SX/SR), tsis yog 1310 nm LX, yog li cov nroj tsuag multimode tshiab tsis ua rau LX zoo dua. Yog hais tias cov nroj tsuag yog multimode thiab qhov kev ncua deb yog luv, 1000BASE{10}}SX feem ntau yog cov lus teb yooj yim, pheej yig dua.
Feem ntau yuam kev:ntsaws ib qho LX module ncaj nraim rau hauv multimode yam tsis muaj hom txias qaum. Qhov txuas feem ntau tuaj, tom qab ntawd qhia tias muaj kev ua yuam kev ntau lossis flaps nyob rau hauv kev thauj khoom vim tias lub caij pib. Yog tias koj yuav tsum khiav LX ntawm legacy multimode, ntxiv qhov tseeb hom txias cable thiab siv qhov txuas ua ntej koj muab tso rau hauv ntau lawm.
1000BASE-LX vs 1000BASE-SX
Ob leeg yog Gigabit Ethernet optical qauv, tab sis lawv tsom cov nroj tsuag fiber ntau sib txawv.
| Feature | 1000BASE-LX SFP | 1000BASE-SX SFP |
|---|---|---|
| Lub wavelength | 1310nm ua | 850nm ua |
| Main hom fiber ntau | Tib - hom | Multimode |
| Hom ncav cuag | 5 km (tus qauv), mus txog 10 km (LX / LH) ntawm SMF | Mus txog 220-550 m ntawm MMF, nyob ntawm qib OM |
| Qhov kev siv zoo tshaj plaws | Tsev kawm ntawv, tsev - mus rau - tsev, nkag mus rau uplinks | Cov chaw zov me nyuam, cov khoom siv chav tsev, luv tsev txuas |
| Tus nqi nyiam | Feem ntau siab dua SX | Feem ntau qis dua rau luv luv MMF txuas |
| Kev xa tawm txaus ntshai | Xav tau fiber ntau thiab coding checks | Yooj yim rau luv MMF ib puag ncig |
Xaiv1000BASE-LXthaum qhov txuas ntev, ib qho - hom fiber ntau muaj, thiab ncav cuag qhov tseem ceeb tshaj li tus nqi qis tshaj. Xaiv1000BASE-SXThaum qhov kev khiav yog luv luv, multimode twb nyob rau hauv qhov chaw, thiab koj xav tau qhov kev lag luam 1G txuas hauv ib lub tsev lossis cov ntaub ntawv. Ob qhov yuam kev rov tshwm sim hauv thaj teb: muab SX rau ntawm qhov txuas uas tsuas yog ntev dhau lawm, thiab yuam LX mus rau qhov luv luv multimode khiav qhov twg SX yuav tau ua haujlwm yam tsis muaj hom txias qaum. Tsis txhob muab LX rau ntawm ib qho kawg thiab SX ntawm lwm qhov; cov wavelengths tsis sib xws.
Qhov twg 1000BASE-LX Fits: Hom Kev Siv Cov
LX khwv tau nws qhov chaw nyob qhov twg koj xav tau 1G tshaj qhov deb tshaj tooj liab lossis luv luv -ntau hom multimode tuaj yeem ua haujlwm:
- Campus backbone linkstxuas cov tub ntxhais, kev faib tawm, lossis cais cov txee dai khaub ncaws hauv ntau pua meters mus rau ob peb mais, qhov twg tooj liab tsis yog qhov kev xaiv.
- Tsim- rau- tsim kev sib txuasrau chaw ua haujlwm chaw ua si, tsev kawm ntawv, tsev kho mob, thiab warehouses tshaj uas twb muaj lawm - hom fiber ntau, tsis muaj kev hloov dua siab tshiab los yog 10G upgrade.
- Access thiab aggregation uplinkstying ntug hloov rov qab mus rau aggregation lossis core thaum 1G txaus rau qhov chaw.
- Industrial thiab utility networks, qhov twg fiber ntau tiv thaiv kev cuam tshuam ntawm electromagnetic cuam tshuam ua rau nws qhov kev xaiv zoo tshaj plaws rau lub Hoobkas, kev thauj mus los, thiab sab nraum zoov.
- Legacy network extension, khaws SFP-raws li cov keyboards thiab ntsia ib zaug- hom fiber ntau pab tau qhov twg 1G twb ua tau raws li daim ntawv thov xav tau.
Kev xa tawm piv txwv.Lub Tsev A rau Lub Tsev B tshaj 1.8 km ntawm OS2 ib zaug -mode fiber, duplex LC, nrog 1000BASE-LX/LH SFPs ntawm ob qho kawg. Ua ntej lees txais, pab neeg nyeem DOM tau txais lub zog ntawm txhua qhov kawg thiab lees paub tias nws zaum hauv lub module tau txais ntau yam nrog ob peb dB ntawm cov npoo, tom qab ntawd xyuas tias tsis muaj qhov hloov pauv tsis tau txais kev txhawb nqa - kev ceeb toom transceiver. Ob daim tshev dhau lawm, yog li qhov txuas mus nyob nrog cov ntaub ntawv kho qhov muag nyeem rau tom qab siv.
Thaum 1000BASE-LX Tsis yog Kev Xaiv Zoo
Reconsider 1000BASE-LX thaum:
- Qhov txuas luv luv thiab khiav ntawm multimode fiber ntau.
- Koj xav tau ntau tshaj 1 Gbps ntawm throughput.
- Qhov kev ncua deb tshaj qhov module qhov ntsuas ncav cuag.
- Koj muaj ib tug fiber ntau strand thiab xav tau kev sib kis bidirectional.
- Qhov hloov yuav tsis lees txais lub module's coding.
- Koj tab tom tsim lub siab tshiab -bandwidth qaum qaum qhov twg 10G lossis sai dua yog qhov ntev dua - lub sijhawm haum.
Rau kev khiav dhau 10 km, saib txuas ntxiv - ncav cuag optics xws li1000BASE-EX(kwv yees 40 km) lossis 1000BASE-ZX (kwv yees li 80 km); cov kev ncua deb no yog tus neeg muag khoom- txhais, yog li paub meej cov ntaub ntawv. Rau ib qho -fiber path, siv BiDi (1000BASE-BX) SFP. Rau cov bandwidth siab dua, txav mus rau 10GBASE-LR lossis lwm 10G SFP + kev xaiv.
1000BASE-LX SFP Compatibility: Cov Kev Ntsuas Qhov Teeb Meem
Kev sib raug zoo yog qhov mob taub hau ntau tshaj plaws nrog LX modules. Ob lub optics tuaj yeem sib koom tib tus qauv thiab tseem coj txawv txawv hauv ib qho kev hloov tshwj xeeb. Compatibility ntawm no tsis yog hais txog tus qauv kho qhov muag xwb; nws kuj tseem suav nrog kev hloov coding, chaw nres nkoj- kev txhawb nqa ceev, tus cwj pwm firmware, DOM pom, thiab lub zog kho qhov muag.
Hloov chaw nres nkoj thiab kev txhawb nqa ceev
Paub meej tias qhov chaw nres nkoj yeej txhawb 1000BASE-X. Qee lub tawb yog SFP- nkaus xwb, qee qhov yog dual- tus nqi SFP / SFP+, thiab qee qhov siab dua - cov chaw nres nkoj ceev tsis lees txais txhua 1G module. Ib tug dual - tus nqi SFP + chaw nres nkoj feem ntau siv 1G SFP, tab sis tsis yog tas li, yog li xyuas qhov hloov pauv cov ntaub ntawv ua ntej koj cog lus.
Vendor coding, EEPROM, thiab firmware
Hloov tau nyeem ib qho module's EEPROM, suav nrog kev txheeb xyuas thiab kev kuaj mob uas tau teev tseg los ntawmSWB-8472. Ib tug thib peb - tog optic tej zaum yuav raug tsis lees paub los yog chij nrog "tsis muaj kev txhawb nqa transceiver" ceeb toom tshwj tsis yog nws tau coded rau lub platform ntawd. Qhov no tsis yog ib txwm txhais tau tias lub module yog hluav taws xob lossis optically incompatible, tab sis nws cuam tshuam rau kev xa tawm. Cwj pwm txawv los ntawm tus neeg muag khoom: Cisco siv cov lej xws li GLC-LX-SM thiab GLC-LH-SMD (thiab Meraki siv MA-SFP-1GB-LX10), thiab tej zaum yuav xav tau cov lus txib kom tso cai rau cov kev pabcuam tsis muaj kev txhawb nqa; Juniper, HPE Aruba, Arista, Dell, MikroTik, thiab Ubiquiti txhua tus tuav coding thiab ceeb toom txawv. Rau ib tug loj rollout, sim lub caij nyoog module code nyob rau hauv lub caij nyoog hloov qauv thiab firmware version ua ntej koj standardize, thiab qhov twg koj xav tau guaranteed txais ntawm ib tug muab platform, qhov chaw coded ib feem xws liCisco-coded GLC-LH-SM module.
Sib piv ob qhov kawg
Lub optics ntawm txhua qhov kawg yuav tsum pom zoo rau tej yam uas tseem ceeb: tib tus qauv Ethernet, tib lub wavelength, sib haum mus txog qhov ntsuas, tau tshaj fiber ntau hom, duplex LC connector, thiab ib tug zoo sib xws optical zog ntau yam. Kev sib xyaw LX thiab SX hla ib qhov txuas yuav tsis ua haujlwm.
DOM/DDM kev kuaj mob
Qhov twg nws txhawb,cia koj nyeem cov xa hluav taws xob, tau txais lub zog, qhov kub thiab txias, muab hluav taws xob, thiab laser bias tam sim no ncaj qha los ntawm lub module. Qhov ntawd yog txoj hauv kev nrawm tshaj plaws los nrhiav qhov tsis muaj zog, qhov sib txuas qias neeg, lossis qhov sib txuas tsis zoo. Tsis yog txhua qhov module lossis hloov pauv ua rau tib thaj chaw, yog li paub meej tias kev txhawb nqa yog tias kev kuaj mob tseem ceeb rau koj txoj haujlwm.
Troubleshooting a 1000BASE-LX Link
Ua haujlwm qhov txuas hauv qhov kev txiav txim no, uas tsom iav qhov teeb meem feem ntau pom ntawm qhov chaw:
- Xyuas qhov chaw nres nkoj txuas lub teeb thiab qhov teeb tsa ceev thiab duplex.
- Txheeb xyuas TX/RX polarity los ntawm kev sib pauv ob lub fiber ntau.
- Ntxuav ob lub LC kawg- ntsej muag thiab rov- zaum cov khoom sib txuas.
- Nyeem DOM tau txais lub zog ntawm txhua qhov kawg thiab sib piv nws tawm tsam lub module qhov rhiab heev.
- Tshawb xyuas lub cav hloov pauv rau qhov tsis txaus siab -transceiver lossis yuam kev- kaw lus.
- Hloov pauv hauv qhov paub - zoo module kom cais cov module txhaum los ntawm qhov txuas txuas.
Daim ntawv qhia rau cov tsos mob tshwj xeeb:
- Module tsis paub:feem ntau tus neeg muag khoom coding, kev txwv firmware, hom chaw nres nkoj tsis ncaj ncees lawm, lossis cov khoom siv tsis raug. Xyuas cov matrix compatibility thiab lub kaw lus, thiab sim ib tug paub - module zoo nyob rau hauv tib lub chaw nres nkoj.
- Paub tab sis txuas mus:thim rov qab TX/RX strands, qhov tsis ncaj ncees lawm module nyob deb kawg, LX yuam kev ua ke nrog SX, ib tug qias neeg los yog tawg connector, hom fiber ntau tsis ncaj ncees lawm, los yog kaw - chaw nres nkoj tej thaj chaw deb.
- Txuas tsis ruaj khov lossis flapping:marginal optical hwj chim, tsis zoo connector tsis zoo, kev txuas ntau dhau, khoov - teeb meem kab hluav taws xob, siv ntau hom yam tsis muaj hom txias, lossis kub thiab kev co hauv qhov chaw hnyav.
- Txais lub zog tsawg dhau:ib txoj kev ntev los yog poob, ib qho kev sib txuas qias neeg, ib qho kev puas tsuaj rau cov hlua, los yog ntau tus khub txuas. Ntxuav, hloov cov hlua khi, ntsuas qhov poob, thiab txo cov ntsiab lus tsis tsim nyog.
- LX tshaj multimode unreliable:modal dispersion los yog ib qho kev tso tawm tsis raug. Txav mus rau ib qho - hom yog tias koj tuaj yeem ua tau, siv SX rau luv luv multimode, los yog ntxiv cov hom txias txias thiab siv tau ua ntej.
Yuav Ua Li Cas Xaiv Txoj Cai 1000BASE-LX SFP
Tsis txhob xaiv tus nqi ib leeg. Sib piv cov module rau tag nrho kev xa tawm:
- Hloov compatibility:Nws puas yuav ua haujlwm nrog koj lub npe hloov pauv thiab firmware, thiab koj puas xav tau ib qho coded?
- Fiber ntau:ib hom - hom (kev xaiv zoo) lossis multimode (tsuas yog nrog hom txias)?
- nrug:yog 5 mus rau 10 km txaus, lossis koj puas xav tau kev ncua ntev?
- Connector:Duplex LC uas phim koj cov hlua khi?
- DOM / DDM:Koj puas xav tau kho qhov muag saib xyuas?
- Kev ntsuas kub:ib txwm siv sab hauv tsev, lossis ib qhov chaw ua lag luam uas xav tau kev txuas ntxiv - ntsuas kub?
- Cov neeg muag khoom txhawb nqa:tus neeg muag khoom puas tuaj yeem muab cov coding, kuaj, thiab hloov pauv?
- Deployment scale:ib qho kev hloov pauv, lossis tus qauv koj yuav rov qab hla ntau qhov chaw?
Rau ib qho - tawm kev hloov pauv, sib piv cov module uas twb muaj lawm cov lus qhia feem ntau txaus. Rau kev nthuav dav lossis ntau qhov - qhov chaw tsim, txhais cov npe ntawm cov qauv optics thiab sim txhua qhov module hauv lub hom phiaj hloov platform thiab firmware ua ntej.
Kev Taw Qhia Kev Xaiv Ceev
| Scenario | Kev xaiv zoo dua |
|---|---|
| Luv luv multimode txuas hauv ib lub chaw khaws ntaub ntawv | 1000BASE-SX |
| Tib hom - txuas mus txog 5–10 km | 1000BASE-LX / LX-LH |
| Txuas dhau 10 km | 1000BASE-EX or 1000BASE-ZX |
| Tib - fiber ntau txuas | 1000BASE-BX / BiDi SFP |
| Xav tau ntau tshaj 1 Gbps | 10G SFP + (SR / LR) lossis siab dua |
| Tam sim no 1G SFP hloov nrog ib qho - hom fiber ntau | 1000BASE-LX / LX-LH |
| Legacy multimode uas yuav tsum khiav LX | LX nrog hom txias, tom qab kuaj |
Standards thiab Yam Yuav Tsum Tau Paub
Kev ncav cuag, lub zog kho qhov muag, kev txhawb nqa DOM, thiab kev ua haujlwm kub yog cov khoom ntawm cov qauv tshwj xeeb, tsis yog ntawm daim ntawv lo, yog li lees paub lawv tawm tsam cov ntaub ntawv module thiab qhov hloov pauv qhov sib txuam ua ntej koj yuav lossis xa mus. Cov ntaub ntawv muaj feem cuam tshuam ncaj qha: 1000BASE-LX tau txhais hauv IEEE 802.3; Kev txheeb xyuas cov transceiver thiab digital diagnostics ua raws SFF-8472; ib leeg- hom fiber ntau rau 1310 nm kis tau tus mob ua raws ITU-T G.652; thiab OS1/OS2 thiab OM cabling qib los ntawm cov qauv-cabling xws li ISO/IEC 11801 thiab TIA-568.
FAQ Txog 1000BASE-LX SFP
Q: Puas yog 1000BASE-LX tib- hom lossis ntau hom?
A: Nws yog ib qho - qauv qauv ntawm 1310 nm. Nws tuaj yeem khiav tau ntau hom ntawm qhov luv luv nrog lub hom txias thaj cable, tab sis tib hom - hom yog qhov kev xaiv thiab xav tau tshaj plaws.
Q: Qhov siab tshaj plaws ntawm 1000BASE-LX SFP yog dab tsi?
A: Tus qauv IEEE 802.3 qhia txog li 5 km ntawm ib qho - hom fiber ntau (thiab 550 m ntawm multimode nrog hom txias). Qhov sib txawv LX/LH feem ntau yog ntsuas rau 10 km ntawm ib hom -. Qhov tseeb ncav cuag yog nyob ntawm fiber ntau zoo, connector thiab splice poob, thiab cov nyiaj siv hluav taws xob kho qhov muag.
Q: Dab tsi wavelength siv 1000BASE-LX?
A: 1310 nm, uas haum rau ntev dua - ncav cuag kis tau tus mob ib zaug - hom fiber ntau.
Q: Dab tsi cable thiab connector puas 1000BASE-LX siv?
A: Feem ntau LX modules siv lub duplex LC connector tshaj 9/125 µm ib leeg -mode fiber (OS1 lossis OS2). Nyob rau hauv multimode, ib hom txias thaj cable yog feem ntau yuav tsum tau.
Q: Kuv puas xav tau hom txias cable rau 1000BASE-LX?
A: Tsuas yog thaum koj khiav LX hla multimode fiber ntau. Ntawm ib qho - hom fiber ntau nws tsis xav tau. Ntawm multimode, hom txias qaum pab lub 1310 nm laser tso kom raug thiab txo cov modal dispersion.
Q: Puas yog 1000BASE-LX tib yam li 1000BASE-LH?
A: Ntau lub khw muag khoom LX thiab LH ua ke vim tias ob qho tib si khiav ntev - ncav cuag Gigabit Ethernet dhau ib zaug - hom fiber ntau, thiab LX / LH feem feem ntau ntsuas rau 10 km. Tus neeg muag khoom npe sib txawv, yog li kos cov ntaub ntawv kom paub meej nyob deb, wavelength, optical zog, thiab kev sib raug zoo.
Q: Kuv puas tuaj yeem siv 1000BASE-LX SFP hauv SFP + chaw nres nkoj?
A: Qee zaum. Qee qhov SFP + chaw nres nkoj txais 1G SFP modules thiab qee qhov tsis ua. Tshawb xyuas cov ntaub ntawv hloov pauv thiab kev sib raug zoo matrix ua ntej.
Q: Kuv puas tuaj yeem sib xyaw ntau hom 1000BASE-LX SFP?
A: Feem ntau yog, tsuav yog ob qho tib si modules ua raws li tus qauv kho qhov muag thiab lub zog ntau. Hloov-sab tus neeg muag khoom coding tseem tuaj yeem cuam tshuam seb qhov module puas tau txais, yog li sim cov txuas tseem ceeb.
Q: Vim li cas kuv 1000BASE-LX txuas tsis tuaj?
A: Cov laj thawj ib txwm yog thim rov qab TX/RX strands, qias neeg LC kawg -lub ntsej muag, LX yuam kev ua ke nrog SX ntawm qhov kawg, hom fiber ntau tsis raug, lossis coding tus hloov yuav tsis lees txais. Ua haujlwm los ntawm kev daws teeb meem saum toj no ua ntej hloov lub module.
Q: Kuv puas yuav tsum xaiv 1000BASE-LX lossis hloov mus rau 10G?
A: Nyob nrog 1000BASE-LX yog tias koj lub tsheb khiav yooj yim hauv 1 Gbps thiab koj cov keyboards tsuas muaj SFP tawb. Txav mus rau 10G kev xaiv xws li a10GBASE-LR SFP+yog hais tias qhov txuas yog ib qho fwj, nqa ntau tus neeg siv lossis khaws cia, lossis yog ib feem ntawm lub pob txha tshiab.
Q: Puas yog 1000BASE-LX tseem tsim nyog siv?
A: Yog, thaum 1 Gbps txaus thiab koj xav tau ntev - nrug ib leeg - hom kev sib txuas. Nws tseem yog ib qho kev xaiv zoo rau kev sib txuas hauv tsev kawm ntawv, nkag mus rau hauv tes hauj lwm, muaj Ethernet, thiab 1G infrastructure uas twb muaj lawm.
Kab hauv qab
Xaiv 1000BASE-LX/LH SFP thaum txoj kev yog ib zaug- hom, 1 Gbps txaus, thiab qhov kev ncua deb poob li ntawm 5 mus rau 10 km nrog kev siv nyiaj tsis zoo. Siv SX rau luv luv multimode, EX lossis ZX dhau 10 km, BiDi rau ib leeg fiber ntau, thiab 10G optics thaum 1G tau dhau los ua lub fwj. Qhov kev txiav txim siab tsis tshua muaj nqis los rau ntawm daim ntawv lo ntawm lub tawb. Nws los txog rau plaub yam uas koj tuaj yeem txheeb xyuas: hom fiber ntau, ntsuas nyiaj poob, qhov hloov pauv tus coding thiab tus cwj pwm firmware, thiab tau txais lub zog koj nyeem ntawm qhov txuas nyob.
