Nyob rau niaj hnub no lub ntiaj teb ceev ceev, qhov kev xav tau ntawm kev xa cov ntaub ntawv ceev ceev tau mus txog qhov tsis tau pom dua. Qhov tshwm sim ntawm AI daim ntawv thov thiab cov qauv loj tau ua kom suav lub zog ua haujlwm tseem ceeb hauv AI kev lag luam. Raws li qhov kev thov rau kev sib txuas lus nrawm txuas ntxiv mus ntxiv, cov khoom siv kho qhov muag ceev tau dhau los ua ib qho tseem ceeb ntawm cov neeg txawj ntse txawj ntse. Cov kab lus no yuav siv sij hawm saib qhov tob ntawm kev hloov pauv ntawm 800G optical modules thiab lawv lub peev xwm loj hauv lub sijhawm ntawm kev txawj ntse.
01 Kev hloov pauv ntawm 800G optical modules
Optical module yog lub luag haujlwm rau kev hloov pauv cov teeb liab photoelectric hauv kev sib txuas hauv network. Nws yog lub luag haujlwm rau kev hloov cov teeb liab hluav taws xob rau hauv cov teeb liab kho qhov muag ntawm qhov kawg xa, thiab tom qab ntawd hloov cov teeb liab kho qhov muag mus rau hauv cov teeb liab hluav taws xob ntawm qhov kawg tau txais tom qab kis tau los ntawm fiber ntau optical.
Nrog rau kev txhim kho thiab kev sib koom ua ke ntawm cov khoom siv optoelectronic, lawv cov kev ua tau zoo thiab kev sib kis bandwidth txuas ntxiv txhim kho, thiab cov khoom siv kho qhov muag xav tau cov nqi sib kis ntau dua thiab qhov me me kom hloov mus rau qhov sib txawv ntawm kev siv scenarios. Cov txheej txheem ntim khoom kuj tseem hloov zuj zus mus tas li. Kev ntim me me thiab kev siv hluav taws xob txhais tau hais tias cov khoom siv kho qhov muag muaj qhov chaw nres nkoj ntau dua ntawm cov keyboards, thiab tib lub zog tuaj yeem tsav cov khoom siv kho qhov muag ntau dua.
Kev xav tau ntau dua bandwidth
Kev loj hlob ntawm cov kev xav tau bandwidth tau muaj kev cuam tshuam loj rau cov khoom siv kho qhov muag ceev. Nrog rau kev tshwm sim tsis tu ncua ntawm cov thev naus laus zis tshiab thiab qhov kev thov rau cov ntaub ntawv loj xa mus, tsoos 100G, 200G, thiab 400G optical modules tsis tuaj yeem ua tau raws li kev xav tau ntawm kev lag luam. Txhawm rau ua kom tau raws li qhov xav tau ntawm kev loj hlob bandwidth, 800G optical modules tau dhau los ua tus qauv.
Kev loj hlob ntawm LPO Technology
Nyob rau hauv lub era ntawm 800G optical modules, linear-tsav pluggable optics (LPO) technology sawv tawm. LPO siv cov kab sib txuas sib txuas hauv cov ntaub ntawv txuas, tshem tawm qhov xav tau rau kev tsim CDR lossis DSP. Piv nrog rau DSP cov kev daws teeb meem, LPO txo qis kev siv hluav taws xob thiab latency, ua rau nws zoo tagnrho rau qhov luv luv, bandwidth, kev siv hluav taws xob tsawg thiab qis-latency cov ntaub ntawv sib txuas ntawm AI cov chaw hauv computer. Raws li cov chaw muab kev pabcuam huab nthuav dav lawv cov peev txheej suav, LPO cov kev daws teeb meem suav nrog 800G LPO yuav tsum tau khaws cov khoom lag luam tseem ceeb.
02 800G optical module ntim
Nrog rau kev nce qib ntawm kev siv thev naus laus zis tas mus li, daim ntawv ntim ntawm cov khoom siv kho qhov muag tau dhau los ua qhov tseem ceeb evolution. Los ntawm GBIC thaum ntxov, mus rau me me SFP ntim, rau niaj hnub no 800G QSFP-DD thiab OSFP ntim. Qhov kev txhim kho no tsis yog tsuas yog qhia txog kev txhim kho txuas ntxiv hauv kev nrawm ntawm cov khoom siv kho qhov muag, tab sis kuj qhia nws txoj kev vam meej ntawm miniaturization thiab kub-swappability. Daim ntawv thov scenarios ntawm 800G optical modules tau dhau los ua ntau thiab ntau dua, suav nrog ntau qhov chaw xws li Ethernet, CWDM / DWDM, connectors, fiber ntau channel, thiab wired / wireless nkag.
800G QSFP-DD daim ntawv foos:
Ob-qhov ntom ntom plaub-channel me me daim ntawv tseem ceeb pluggable high-speed module. QSFP-DD yog tam sim no lub pob nyiam rau 800G optical modules, ua rau cov chaw zov me nyuam kom loj hlob thiab nthuav dav huab cua raws li xav tau. QSFP-DD module siv 8-channel hluav taws xob cuam tshuam nrog tus nqi txog li 25Gb / s (NRZ kev hloov pauv) lossis 50Gb / s (PAM4 kev hloov pauv) rau ib channel, muab cov kev daws teeb meem sib sau txog li 200Gb / s lossis 400Gb / s.
Qhov zoo ntawm 800G QSFP-DD:
1. Nws muaj downward compatibility thiab yog sib xws nrog QSFP + / QSFP28 / QSFP56 QSFP ntim.
2. Txais 2 × 1 stacked integrated cage connector, uas tuaj yeem txhawb nqa ib qhov siab thiab ob qhov siab lub tawb txuas.
3. Qhov tsawg kawg nkaus ntawm 12 watts ntawm thermal muaj peev xwm ntawm ib lub module yog ua tiav ntawm SMT connectors thiab 1xN tawb. Lub peev xwm thermal ntau dua tuaj yeem txo cov cua sov dissipation muaj nuj nqi ntawm cov khoom siv kho qhov muag, yog li txo qee cov nqi tsis tsim nyog.
4. Hauv kev tsim ntawm QSFP-DD, MSA pawg neeg ua haujlwm tau txiav txim siab qhov yooj yim ntawm cov neeg siv khoom siv thiab tau txais ASIC tsim, uas txhawb ntau tus nqi sib cuam tshuam thiab rov qab sib xws (tshaj nrog QSFP + / QSFP28), yog li txo cov nqi chaw nres nkoj thiab khoom siv. tus nqi.
800G OSFP daim ntawv foos:
OSFP yog ib hom tshiab ntawm optical module, ntau me dua CFP8, tab sis me ntsis loj dua QSFP-DD. Nws muaj 8 high-ceev hluav taws xob raws. Txhua 1U pem hauv ntej vaj huam sib luag tseem txhawb nqa 32 OSFP chaw nres nkoj. Nrog kev sib xyaw ua kom sov, nws tuaj yeem txhim kho cov cua sov kom zoo. kev ua tau zoo.
Qhov zoo ntawm 800G OSFP:
1. OSFP module yog tsim los nrog 8 raws, ncaj qha txhawb nqa tag nrho cov kev xa tawm mus txog 800G, yog li ua tiav bandwidth ceev dua.
2. Vim tias OSFP ntim txhawb ntau txoj hauv kev thiab cov ntaub ntawv sib kis ntau dua, nws tuaj yeem muab kev ua tau zoo dua thiab kev sib kis ntev dua.
3. OSFP modules muaj cov qauv tsim hluav taws xob zoo heev thiab tuaj yeem tswj tau lub zog ntau dua.
4.OSFP yog tsim los txhawb cov nqi siab dua yav tom ntej. Vim tias qhov loj dua ntawm OSFP module, nws muaj peev xwm txhawb kev siv hluav taws xob ntau dua thiab yog li tus nqi siab dua, xws li 1.6T lossis siab dua.
Kev sib piv ntawm cov tsos tsis zoo ntawm 800G optical modules:
QSFP-DD feem ntau yog nyiam hauv kev siv xov tooj, thiab OSFP zoo dua rau cov ntaub ntawv chaw ib puag ncig. Qhov sib txawv tseem ceeb ntawm ob yog:
1) Loj: OSFP qhov loj me me me me
2) Kev siv hluav taws xob: Lub zog siv ntawm OSFP yog me ntsis siab dua QSFP-DD.
3) Compatibility: QSFP-DD zoo kawg nkaus sib xws nrog QSFP28 thiab QSFP +, thaum OSFP tsis sib xws.
Txais tos sab laj peb txog 800G optic module nqi & nqi thiab lub sijhawm xa khoom !!
