Tam sim no, IO modules ntawm SFP28 / SFP56 thiab QSFP28 / QSFP56 feem ntau yog siv los txuas cov keyboards thiab keyboards thiab cov servers hauv cov khoom tseem ceeb hauv khw.Nyob rau hauv lub hnub nyoog ntawm 56Gbps tus nqi, thiaj li yuav nrhiav tau qhov chaw nres nkoj siab dua, tib neeg tau ntxiv tsim QSFP-DD IO module kom ua tiav 400G chaw nres nkoj muaj peev xwm.Nrog rau ob npaug ntawm cov teeb liab tus nqi, qhov chaw nres nkoj muaj peev xwm ntawm QSFP DD module tau muab ob npaug rau 800G, uas yog hu ua OSFP112.Nws tau ntim nrog yim qhov kev kub ceev, thiab tus nqi sib kis ntawm ib qho channel tuaj yeem ncav cuag 112G PAM4.Tag nrho cov kis tus nqi ntawm tag nrho cov pob yog txog 800G.Rov qab sib xws nrog OSFP56, piv nrog tib lub sijhawm los ua ob npaug ntawm qhov nrawm, ua tau raws li IEEE 802.3CK tus qauv koom haum;Raws li qhov tshwm sim, qhov kev sib txuas poob yuav nce nrawm dua thiab qhov kev sib kis ntawm cov kab hluav taws xob tsis zoo ntawm CABLE IO module yuav luv dua.Raws li qhov tseeb ntawm lub cev tsis muaj zog, pab pawg IEEE 802.3CK, uas tsim 112G specification, txo qhov siab tshaj plaws ntawm tooj liab txuas mus rau 2 meters raws li 56G tooj liab cable IO nrog qhov siab tshaj plaws ntawm 3 meters.
QSFP-DD X 2 chaw nres nkoj 1.6Tbps xeem board
QQSFP -DD 800G tuaj tawm tsam cua
Cov ntaub ntawv chaw muaj peev xwm raug txiav txim siab los ntawm cov servers, keyboards, thiab cov khoom sib txuas uas sib npaug sib npaug thiab thawb ib leeg mus rau kev loj hlob sai, qis dua.Hloov tshuab tau ua lub luag haujlwm tseem ceeb rau ntau xyoo.Raws li OFC2021 los txog rau qhov kawg tsis ntev los no, mainstream optical kev sib txuas lus manufacturers xws li Intel, Finisar, Xechuang, Opticexpress thiab New Yisheng tau tag nrho cov tso tawm 800G series optical modules.Tib lub sijhawm, cov tuam txhab kho qhov muag txawv teb chaws tau pom cov khoom lag luam siab kawg rau 800G, thiab cov txheej txheem ib txwm tseem yuav muaj qhov chaw nyob hauv 800G era.Peb xav tias 800G optical module technology txoj kev yog ntau dua thiab meej, 800GDR8 thiab 2 * FR4 muaj lub peev xwm loj tshaj plaws;Raws li OFC2021 mainstream optical module thiab optical nti tuam txhab uas muag tau launched cov khoom tshiab ib tug tom qab lwm, lub sij hawm node thiab mainstream technology txoj kev ntawm 800G upgrade tau raug txhais.Tus nqi ntawm cov ntaub ntawv chaw kho qhov muag module kev lag luam txuas ntxiv mus, thiab qhov kev loj hlob mus sij hawm ntev tau txiav txim siab.Peb ntseeg hais tias nyob rau hauv lub era ntawm digitalization thiab kev txawj ntse, qhov nruam tawg ntawm cov ntaub ntawv chaw khiav tsheb tau coj qhov kev thov rau kev nruam iteration ntawm optical modules.Txoj kev thev naus laus zis meej ntawm 800G qhia tias 400G yuav yog qhov loj.
Thaum 25Gbps teeb liab tus nqi tau hloov kho mus rau tam sim no 56Gbps teeb liab tus nqi, vim qhov kev taw qhia ntawm PAM4 (Pulse Amplitude Modulation) lub teeb liab (IEEE 802.3BS pab pawg), Qhov tseem ceeb zaus taw tes ntawm cov teeb liab kis ntawm Serdes Ethernet txuas tsuas yog txav mus. los ntawm 12.89ghz mus rau 13.28ghz, thiab lub teeb liab qhov taw tes zaus tsis hloov ntau.Cov kab ke uas tuaj yeem txhawb kev sib kis tau zoo ntawm 25Gbps cov cim qhia tuaj yeem hloov kho mus rau 56Gbps cov teeb liab tus nqi nrog kev ua kom zoo me ntsis.Txhim kho los ntawm 56Gbps teeb liab tus nqi mus rau 112Gbps teeb liab tus nqi tsis yooj yim li.Lub PAM4 teeb liab system tau qhia thaum tus qauv 56Gbps tus nqi tsim tawm yuav feem ntau yuav rov qab siv dua ntawm 112Gbps tus nqi.Qhov no hloov lub ntsiab lus zaus ntawm 112Gbps Ethernet teeb liab mus rau 26.56ghz, uas yog ob zaug ntawm 56Gbps teeb liab tus nqi.Nyob rau hauv lub cim ntawm 112Gbps tus nqi, cov kev cai siv tshuab cable yuav ntsib qhov kev sim xav tau ntau dua.Tam sim no, 400Gbps high-speed cable txuas nrog cov khoom.Cov khoom lag luam thaum ntxov yog cov khoom lag luam txawv teb chaws, xws li TE, LEONI, MOLEX, Amphenol, thiab lwm yam. Cov hom lag luam hauv tsev kuj tau pib dhau xyoo tas los.Los ntawm cov txheej txheem tsim khoom, cov khoom siv thiab cov khoom siv, peb tau ua ntau yam tshiab.Tam sim no, muaj cov lag luam hauv tsev uas tsim 800G tooj liab cable, tab sis peb tsis tau sau ntau.Shenzhen Hongteda, Dongguan Zhongyou Electronics, Dongguan Jinxinuo, Shenzhen Simic Kev Sib Txuas Lus, thiab lwm yam.Tam sim no, nws yog ib qho nyuaj los daws cov teeb meem hluav taws xob ntau zaus thiab cov kev xav tau ntawm cov khoom siv hluav taws xob hauv tib lub sijhawm.DAC tooj liab cable yuav ntsib lub sijhawm ntawm kev loj hlob sai.Tsuas muaj ib tug puv tes ntawm lub zos xaim manufacturers.
Kev ua lag luam hloov pauv sai, thiab nws yuav hloov zuj zus sai dua yav tom ntej.Cov xov xwm zoo yog tias qhov tseem ceeb thiab muaj kev vam meej tau ua tiav, los ntawm cov qauv hauv lub cev mus rau kev lag luam, kom cov chaw khaws ntaub ntawv hloov mus rau 400GB thiab 800GB.Tab sis tshem tawm cov teeb meem thev naus laus zis tsuas yog ib nrab ntawm kev sib tw.Lwm ib nrab yog lub sijhawm.Thaum qhov kev txiav txim tsis raug tshwm sim, tus nqi yuav siab dua.Lub ntsiab ntawm cov ntaub ntawv hauv tsev uas twb muaj lawm yog 100G.Ntawm cov chaw xa tawm 100G cov ntaub ntawv, 25% yog tooj liab, 50% yog ntau hom fiber ntau, thiab 25% yog ib leeg-module fiber.Cov naj npawb ib ntus no tsis muaj tseeb, tab sis qhov kev thov nce rau bandwidth, muaj peev xwm, thiab qis dua latency yog tsav kev tsiv teb tsaws mus rau kev sib txuas ceev ceev.Yog li txhua txhua xyoo, kev yoog raws thiab kev muaj peev xwm ntawm cov ntaub ntawv huab cua loj yog qhov kev sim.Tam sim no, 100GB tab tom ua lag luam, nrog 400GB xav tau rau xyoo tom ntej.Txawm hais tias qhov no, cov ntaub ntawv ntws tseem txuas ntxiv mus ntxiv, lub siab ntawm cov chaw khaws ntaub ntawv tseem yuav nce ntxiv, tom qab 400G, QSFP-DD 800G tau tuaj.
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Post lub sij hawm: Aug-16-2022