Daim Ntawv Qhia Kom Paub Txog 10G Ib Leeg-Mod Optical Module Transmission Distances: Cov Qauv Txheej Txheem, Saib Kom Paub Ntxiv ntawm 2km Kev Xaiv, thiab Cov Lus Qhia Xaiv kom tsis txhob muaj teeb meem
Nyob rau hauv niaj hnub network kis tau tus mob, kho qhov muag modules yog cov tseem ceeb Cheebtsam txuas fiber optics rau network pab kiag li lawm . 10G ib leeg- hom kho qhov muag modules, nrog zoo xws li ceev kis tau tus mob, muaj zog los tiv thaiv- muaj peev xwm cuam tshuam, thiab tsawg poob, yog dav siv nyob rau hauv cov xwm txheej xws li lub tsev kawm ntawv network thiab cov chaw zov me nyuam. Kev sib kis deb yog qhov taw qhia tseem ceeb rau kev xaiv. Ntau tus kws tshaj lij feem ntau tsis meej pem cov kev qhia tshwj xeeb - piv txwv li, qhov kev ncua deb yog dab tsi, puas muaj 2km kev xaiv, thiab yuav ua li cas kom phim lawv rau cov xwm txheej. Kab lus no yuav piav qhia txog cov kev paub tseem ceeb los pab txhua tus kom zam dhau kev xaiv yuam kev.
I. Kev nkag siab yooj yim ntawm 10G Tib -Mod Optical Modules
10G ib leeg- hom optical modules feem ntau siv SFP + pob, sib xws nrog cov khoom siv xws li keyboards thiab servers, thiab yuav tsum tau siv nrog 9/125μm OS2 ib zaug - hom fiber ntau. Cov tub ntxhais ntawm ib leeg - hom fiber ntau yog nyias nyias, cia tsuas yog ib qho teeb meem kho qhov muag xwb, uas ua rau poob qis dua piv rau multimode fiber ntau. Qhov no yog qhov tseem ceeb rau kev ua tiav kilometer{10}} theem kev sib kis.
Nws qhov kev sib kis deb yog cuam tshuam los ntawm plaub yam tseem ceeb: optical wavelength, xa lub zog, receiver rhiab heev, thiab fiber ntau txuas poob . 1310nm thiab 1550nm yog lub ntsiab wavelengths. Kev lag luam tshwj xeeb ua raws li IEEE cov qauv thoob ntiaj teb, tsim cov theem sib txawv uas sib npaug ntawm kev ua haujlwm thiab tus nqi.
II. Mainstream Standard Transmission Distance Specifications rau10G Tib -Mod Optical Modules
Qhov kev ncua deb ntawm 10G ib leeg -mos kho qhov muag modules ntawm lub khw ua raws li IEEE 802.3ae tus qauv. Plaub qhov tshwj xeeb tseem ceeb - 10km, 20km, 40km, thiab 80km - npog txhua qhov xwm txheej. Lawv cov yam ntxwv yog raws li nram no:
10km Specification (10GBASE-LR): Feem ntau thiab tus nqi-Kev xaiv zoo
Qhov no yog tus qauv siv dav tshaj plaws nrog tus nqi zoo tshaj -kev ua tau zoo piv. Nws muaj qhov sib kis ntawm 10km, siv 1310nm wavelength, thiab tsim nyog rau kev sib txuas hauv tsev kawm ntawv thiab luv luv - mus rau - nruab nrab nyob deb cabling hauv cov ntaub ntawv chaw. Nws muaj kev sib raug zoo thiab muaj cov khoom lag luam uas paub tab, ua rau nws yog thawj qhov kev xaiv rau feem ntau cov lag luam thiab cov hauv paus ntsiab lus rau luv luv - nrug specifications.
20km Specification: Txhim kho qhov nruab nrab-Nyob qhov kev hloov pauv
Qhov no tsis yog IEEE tus qauv tab sis qhov kev txhim kho ntawm 10GBASE-LR. Nws kuj tseem siv 1310nm wavelength, ncua qhov kev ncua deb mus rau 20km los ntawm optimizing lub zog. Nws puv qhov sib txawv ntawm 10km thiab 40km, haum rau metro network nkag cov khaubncaws sab nraud povtseg thiab hla- kev sib txuas hauv tsev kawm ntawv. Nws tuaj yeem cuam tshuam nrog 10km modules, muab kev hloov pauv siab.
40km Specification (10GBASE-ER): Lub Ntsiab Ntev -Nyob Ua Haujlwm
Qhov no yog tus qauv ntev -haul specification nrog kev sib kis ntawm 40 km. Nws siv 1550nm wavelength (uas muaj qis dua), ua rau nws haum rau metro network backbone txheej thiab hla -kev sib txuas hauv cheeb tsam. Nws feem ntau tsis xav tau cov cuab yeej kho qhov muag ntxiv, tus nqi qis dua 80km modules, thiab yog qhov kev xaiv tseem ceeb rau kev xa mus ntev -.
80km Specification (10GBASE-ZR): Qhov siab tshaj plaws Standard Long-Haul Option
Qhov no yog qhov ntev tshaj plaws tus qauv specification rau 10G ib qho - hom, muab 80km kis tau tus mob. Nws siv 1550nm wavelength thiab muaj kev xav tau kho vajtse siab heev. Nws yog qhov tsim nyog rau cov xwm txheej tshwj xeeb xws li hla- kev sib txuas hauv nroog lossis chaw nres tsheb hauv chaw taws teeb rov qab. Cov nqi yog siab, thiab kev siv hluav taws xob yog qhov tseem ceeb, yog li nws yuav tsum tsis txhob xaiv qhov tsis tsim nyog rau cov xwm txheej niaj hnub.
III. Feem ntau-Ntseeg 2km Specification: Tus Nqi -Kev Xaiv Zoo rau Ib Leeg luv luv-Mod Links
Ntau tus neeg xav paub yog tias qhov kev xaiv 2km muaj rau 10G tib hom - hom. Cov lus teb yog yog. Nws tsis yog ib feem ntawm IEEE 802.3ae puag tus qauv tab sis yog raws li 10GBASE-LRL specification hauv IEEE 802.3aq tus qauv. Nws feem ntau hu ua 10G SFP+ 2km ib zaug-mode module, ib qho kev xaiv muaj txiaj ntsig siab rau luv- nyob deb li cas.
Cov qauv no feem ntau siv 1310nm wavelength thiab feem ntau nta LC duplex interface. Piv rau 10km LR modules, nws muaj qis dua lub zog xa hluav taws xob thiab cov kev xav tau kom muaj zog, ua rau txo nqi ntawm 10%-30%. Nws khaws cov kev tiv thaiv los tiv thaiv - cuam tshuam qhov zoo ntawm ib qho - hom, sau qhov sib txawv ntawm 300m (multimode) thiab 10km (ib hom).
Nws daim ntawv thov scenarios suav nrog cross-rack cabling nyob rau hauv cov chaw zov me nyuam thiab luv-kev sib txuas hauv tsev kawm ntawv nyob deb. Piv rau multimode modules, nws kis tau ntxiv thiab muaj zog cuam tshuam tsis kam. Piv rau 10km modules, nws muaj tus nqi qis dua thiab kev siv hluav taws xob. Raws li 2km modules tuaj yeem cuam tshuam nrog 10km modules. Thaum yuav khoom, ua qhov tseem ceeb rau cov khoom lag luam uas sau tias yog 10GBASE-LRL kom ntseeg tau tias muaj kev sib raug zoo.
IV. Kev txiav txim siab tseem ceeb rau Kev Xaiv 10G Ib Leeg-Mod Optical Modules
Kev xaiv yuav tsum xav txog qhov xwm txheej, tus nqi, thiab kev sib raug zoo thoob plaws. Ua tib zoo saib 5 cov ntsiab lus tseem ceeb hauv qab no:
Xaiv qhov nrug raws li qhov xav tau, zam "Nyob ntev dua"
Qhov muag tsis pom kev xaiv ntev dua -mob qhov deb ua rau tus nqi nce thiab tuaj yeem ua rau muaj teeb meem ntau dhau. Ntsuas qhov kev ncua deb kom raug, tseg 10% -20% npoo rau qhov txuas poob. Xaiv 2km LRL rau kev ncua qis dua 2km, 10km LR rau qis dua 10km, 40km ER rau 20-40km, thiab tsuas yog xav txog 80km ZR rau kev deb tshaj 40km.
Sib phim hom Fiber kom tsis txhob muaj kev sib txuam
Yuav tsum tau siv nrog OS2 ib zaug - hom fiber ntau. Tsis txhob sib xyaw nrog multimode fiber ntau, vim qhov no yuav ua rau muaj kev sib kis tsis raug. Thaum lub sij hawm xa mus, ua raws li cov qauv kev siv cabling, txo qis fiber ntau khoov thiab cov khoom sib txuas, kom txo qis kev sib txuas.
Ua tib zoo saib xyuas kev ua raws cai
Rau cov ntsiab lus tseem ceeb, ua qhov tseem ceeb ntawm cov khoom lag luam uas ua raws li IEEE cov qauv, ua kom muaj kev sib raug zoo nrog cov khoom lag luam loj. Zam tsis txhob -tus qauv, tawm- cov qauv lag luam kom txo tau cov teeb meem kev saib xyuas yav tom ntej.
Ntsuas tus nqi thiab kev ua haujlwm
Tsawg dua lossis sib npaug li 300m: Ua ntej 10G SR multimode modules (tus nqi qis dua).
300m-2km (nrog kev cuam tshuam kev txhawj xeeb): Xaiv 2km LRL.
Hauv 10km: Xaiv 10km LR.
Kev ncua deb: Xaiv 40km ER lossis 80km ZR raws li xav tau.
Muaj xwm txheej: Xaiv cov qauv ntsuas kub ntev.
Cov xwm txheej sab hauv tsev: Xaiv qib kev lag luam.
Xyuas kom muaj kev sib raug zoo ntawm Optical Fais Fab
Thaum interconnecting modules ntawm txawv specifications, xyuas lub optical zog ua ntej. Yog hais tias lub hwj chim siab dhau lawm, ntxiv ib qho attenuator kom ntseeg tau tias lub hwj chim tau txais nyob rau hauv lub receiver lub rhiab heev ntau yam, guaranteeing lossless pob ntawv kis tau tus mob.
V. Xaus: Kev tsim nyog yog qhov tseem ceeb
Plaub lub ntsiab specifications rau10G ib leeg -mode optical modules- 10km, 20km, 40km, thiab 80km - npog feem ntau ntawm cov xwm txheej, nrog rau 2km LRL sau qhov luv - nrug deb. Lub hauv paus ntsiab lus tseem ceeb ntawm kev xaiv yog kom phim qhov xwm txheej, kho qhov kev ncua deb, thiab sib npaug ntawm tus nqi. Kev tsis lees paub qhov kev xav tsis zoo tias "ntev ntev dua yog qhov zoo dua" yog qhov tseem ceeb rau kev xaiv cov qauv tsim nyog, ua kom muaj kev ruaj ntseg network, thiab tswj cov nqi.
