Tau ob xyoo dhau los, Ethernet thev naus laus zis tau siv dav hauv chaw ua lag luam, tsev dav dav, tswj kev lag luam, kev soj ntsuam kev nyab xeeb thiab lwm qhov chaw, yav tom ntej ntau bandwidth, qis dua ncua sij hawm ntawm Ethernet technology yuav txuas ntxiv mus rau cov ntse kev tsim khoom, lub nroog ntse, autopilot, 5 G kabmob, huab xam, cov ntaub ntawv chaw, xws li scene, yuav cuam tshuam peb lub neej txhua lub sijhawm.
Ethernet tseem tab tom loj hlob hauv kev nrawm rau cov ntawv thov tshiab, los ntawm 10 M thiab 10 0M pib rau 400 G nyuam qhuav dhau los ua qauv. Kev teb ntxiv rau qhov kev xav tau rau cov chaw zov me nyuam cov ntaub ntawv txuas ntxiv ob npaug ntawm lawv lub zog hloov pauv txhua ob xyoos, hauv 2018, Ethernet kev sib koom tes tau ua kom pom tseeb tias cov tub ntxhais Ethernet txuas ntxiv, 800 G thiab {{5} }. 6 t yuav muaj nyob rau ob peb xyoos tom ntej no.
Txhawm rau pab txhawb qhov sib cuam tshuam tus nqi sib txuam, qhov ntsuas hluav taws xob kho qhov muag siv tshuab yuav tsum tau tswj. Tam sim no Ethernet interface specifications sib haum nrog tus nqi hluav taws xob kho qhov muag, qhov chaw sib kis thiab hluav taws xob sib txuas. Tam sim no, cov qauv tsis tiav tau tsuas yog tsom ntsoov rau 25 G / 50 G EPON, 100 G FR / LR, 400 G FR 4 / lr {{ 4}} - 6, thiab 100 G / 4 00G 80 km ZR. Kev sib txawv ntawm PMD sib txawv deb sib txawv, tiag tiag ntawm qhov kho qhov muag ntawm lub tshuab hluav taws xob yog ntxaib sib txuam nrog cov laser / modulator, kev siv dav dav VCSEL ntawm multimode, ntev-nrug feem ntau siv EML, ZR tej zaum yuav xav tau siv kev cuam tshuam IQ hloov kho, pom tseeb nrog nce ntawm kis kev sib kis , cov txheej txheem tsim tawm yog ntau thiab ntau qhov nyuaj, kuj txhais tau tias tus nqi nce siab dua thiab siab dua.
Ntawm cov qauv no, 50 G PAM 4 kev hloov kho yog qhov tseem ceeb, ua lub hauv paus ntawm 50 G rau 400 G interface qauv.
Raws li qhov nyuam qhuav tsom mus rau 80 km kev sib txuas lus kho qhov muag rau DCI thiab CATV kev siv, IEEE tau tsim kho qhov haujlwm 80 2.. 3 ua haujlwm pawg pib thaum lub Kaum Ib Hlis {{{{1 {{26 }}}}}} pib los tsim qauv. DCI yog {{4}} G / {5}} km, thiab CATV yog 100 G / {{5}} km. Hauv ob daim ntawv thov ZR no, kev lag luam tam sim no ntseeg hais tias tsuas yog los ntawm digital kev sib koom tes thev naus laus zis tuaj yeem ua tiav qhov 80 km theem ntawm qhov kis tau tus mob siab, thiab tseem yuav tsum siv WDM txhawm rau txhim kho lub peev xwm ntawm ib leeg. Tsis tas li ntawd, hais txog FR / LR, a {{{10}} km / 10 km theem interface interface, IEEE 80 2. {{1 3}} cu launched 100 GBASE FR / LR thiab {{4}} GBASE FR 4 / LR 4 Lub peb hlis ntuj kawg. Qhov tseem ceeb ntawm cov qauv ntawm cov qauv no yog cov kev qhia ntawm 100 G PAM 4 tes taws los piav thiab CWDM multiplexed wavelength grids. Piv nrog rau 50 G PAM 4, qhov sib npaug nthwv dej muaj qhov zoo ntawm kev txo cov naj npawb ntawm cov khoom sib hloov thiab txo tus nqi. Vim tias CWDM wavelengths yov sib nrug {{10}} 0nm sib nrug, cov lasers tsis muaj cai tau tso cai, txo cov nqi ntxiv. Pom tseeb, kev qhia ntawm ib qho channel 100 G thev naus laus zis tau muaj txiaj ntsig zoo rau kev ua raws li kev siv qib siab kho qhov muag kom txo tau tus nqi thiab ua tau zoo kev tsim khoom (muaj tsawg dua kev, kho qhov muag kho tau yooj yim dua). Ntxiv rau qhov, 80 2. {{1 3}} bs thiab CD ua haujlwm pawg kuj tau siv LAN WDM wavelength muab cov haujlwm. Pom tseeb, lub nthwv hluav taws xob ntawm LAN WDM tsuas yog 80 0GHz (4. 5 nm), yog li nws yuav tsum siv TEC tswj cov kev hloov yoj yoj. Txawm li cas los xij, nws ua haujlwm nyob ze rau qhov xoom dispersion ntawm o-band, thiab muaj tsawg cuam tshuam los ntawm kev tawg thaum lub nrawm. Hauv kev sib piv, CWDM kis tau tus mob cuam tshuam los ntawm kev tawg loj, tshwj xeeb tshaj yog piv nrog MZM; EML tseem muaj qhov cuam tshuam ntawm kev chirp, uas tej zaum yuav yog qhov nyuaj rau {{{4}} GBASE LR. 80 2. 3 kuj tseem xav tias qhov no {{{4} } G tsuas txhawb tau kom txog 6 km, namely {{{{16-}}}} bbase-lr 4 - 6. Txawm li cas los xij, rau ntawm 100 G / lamda MSA pab pawg ua haujlwm, lawv tau siv ntau lub yoj yoos sib txawv los daws qhov teeb meem kev tawg, yog li MSA tau txhais cov lus piav txog {{4} gbase-lr 4 - 6 thiab {{4}} gbase-lr 4 - 10 specifications.
Rau 800 G kho qhov muag cuam tshuam, ob MSA pab pawg ua haujlwm tau tsim nyob rau hauv 2019, ib qho qsfp-dd 800 MSA thiab lwm qhov 800 G Pluggable MSA. Hauv cov ntawv tshaj tawm tshiab 800 G Pluggable dawb ntawv, nws tau txiav txim siab tias ib qho channel {{6}} G PAM 4 tuaj yeem siv kom ua tiav 800 G SR, thiab ib qho channel {{6}} G lossis 200 G tuaj yeem siv kom ua tiav DR thiab FR zwj xwm. Txog tom ntej 1. 6 t, ib qho channel 200 G Yuav tsum tau. Rau LR / ER / ZR thiab lwm qhov kev ncua ntev 800 G daim ntawv thov, thev naus laus zis thev naus laus zis yuav yog qhov kev xaiv tsim nyog dua.
Tam sim no, hauv qhov kev sib tshuam nrog cov nqi hauv qab ntawm 400 G, ib qho channel 50 G PAM 4 thiab 100 G PAM 4 yog cov kev hloov kho qhov tseem ceeb, thaum rau tus nqi siab tshaj li ntawm 800 G, ib qho channel 200 G PAM 4 thiab txawm tias muaj kev sib koom thev naus laus zis tej zaum yuav muaj nuj nqis, tej zaum peb lossis plaub xyoos, qhov kev thov no yuav tawm.
Zuag qhia tag nrho, IEEE 802. 3 tsuas yog txiav txim siab qhov kev yees duab tag nrho ntawm cov khoom siv kho qhov muag thiab lub tshuab txais. Cov lus qhia tshwj xeeb xws li cov khoom siv loj, cov ntsiab lus PIN, kev tswj hwm lub ntsiab lus txhais, thiab lwm yam tau teev tseg los ntawm kev lag luam&# {{{2}}; s ntau qhov chaw raws tu qauv MSA. Tam sim no, ntau yam ntawm MSA cov lus qhia rau cov kub ntsaws kho qhov muag tau siv dav. Rau 100 G, CFP / CFP 2 / CFP 4 thiab OSFP yog qhov nrov tshaj plaws, thaum rau ntau dua 100 G (2 00G / {{ 9}} G), kev lag luam muaj ntau dua QSFP-DD, OSFP.
Nws yuav tsum tau hais tias nrog txoj kev loj hlob sai ntawm cov ntaub ntawv nyob sab hauv tsheb, qhov hloov chaw muaj peev xwm, qhov chaw nres nkoj ntom ntom thiab qhov sib txig sib xyaw yuav ntsib cov kev nyuaj loj. Tshwj xeeb, PCB txoj kev nyob nruab nrab ntawm qhov khoos phis tawm kho qhov muag' s chaw nres nkoj thiab tus tes hloov qhov' s sab hauv kev sib hloov nti yuav cuam tshuam lub teeb liab ncaj ncees, thiab lub zog noj ntawm tus tes hloov' s vaj huam sib luag tseem yuav dhau los ua ib qho kev txwv. Txhawm rau ob qho tag nrho, kev lag luam kuj tseem tshawb nrhiav cov hauv kev tshiab los hloov cov pluggable kho qhov muag tam sim no.
