Optical Peev Xwm Npaj: Yuav ua li cas rau yav tom ntej -Ua pov thawj koj lub Fiber Network
Apr 30, 2026| Kev lag luam datacom kho qhov muag tau loj hlob ntau dua 60% hauv 2025, hla $ 16 nphom hauv cov nyiaj tau los (LightCounting ntawm Intro). Tus lej ntawd tseem ceeb rau ib qho laj thawj: txhua lub koom haum sib tw rau 400G thiab 800G modules tau kos los ntawm tib lub pas dej. Cov pab pawg uas npaj kho qhov muag network muaj peev xwm ua kom muaj kev nyab xeeb ntawm kev faib khoom, tus nqi qis, thiab lub qhov rais installation. Cov pab pawg uas hnov mob, hloov kho tsuas yog tom qab cov kab txuas txuas txuas rau qhov saturation, xaus rau kev them nqi nrawm rau cov qauv uas tuaj txog tom qab GPUs lawv yuav tsum txuas.
Qhov kev npaj tsis tau npaj rov-kab kab yog feem ntau yog qhov loj dua. Peb pom nws tsis tu ncua: ib lub koom haum xaj 400G QSFP-DD transceivers, nruab lawv, thiab pom tias ib nrab ntawm cov ntoo khaub lig uas twb muaj lawm -txoj kev txuas tsis tuaj yeem txhawb nqa PAM4 teeb liab ntawm qhov yuav tsum tau ua yuam kev me ntsis. Cov fiber ntau zoo ntawm 100G. Nws tsis zoo lawm. Qhov kev hloov fiber ntau, tsis yog cov transceivers, dhau los ua tus nqi tseem ceeb ntawm txoj haujlwm txhim kho.
Fiber Plant Readiness Assessment: Pib ntawm no, Tsis yog ntawm Transceiver Catalog
Thawj kauj ruam hauv cov ntaub ntawv chaw fiber ntau cog kev ntsuam xyuas yog ntsuas qhov koj muaj tiag tiag, tsis yog qhov kev teeb tsa spec hais tias koj xav tau.
PAM4 encodes ob lub cim rau ib lub cim es tsis txhob ntawm ib qho, uas muab ob npaug ntawm kev xa mus rau ib txoj kab tab sis ua kom nruj lub suab nrov. Cov nroj tsuag fiber ntau uas ua tau zoo ntawm 100G ib txwm ua tsis tiav ntawm 400G nrawm vim tias qhov sib xyaw ua ke poob los ntawm cov khoom sib txuas, splices, thiab khoov noj rau hauv qhov txo cov teeb liab uas PAM4 xav tau.
Nov yog yam uas zoo li hauv kev xyaum. Ib qho 400G SR4 txuas pob nyiaj siv rau IEEE 802.3cm tso cai kwv yees li 1.5 dB ntawm tag nrho cov khoom txuas ntxiv poob. Ib qho kab mob sib kis feem ntau ntxiv 0.3-0.5 dB. Peb qhov kev sib txuas qias neeg nyob rau hauv tus ntoo khaub lig-txoj kev sib txuas, uas tsis yog qhov txawv txav hauv ib puag ncig kev tsim khoom nrog kev ua haujlwm patching tsis tu ncua, haus tag nrho cov khoom sib txuas poob nyiaj ua ntej koj suav rau fiber ntau attenuation nws tus kheej. Ntawm 100G NRZ, tib txoj hauv kev yuav dhau los nrog 1-2 dB ntawm cov npoo kom seem. Peb tau ntsuas qhov no ntau zaus hla Cisco, Arista, Juniper, thiab Dell hloov chaw hauv peb lub chaw kuaj sim: kev sib kis uas ua rau xoom saib tsis zoo ntawm 10G ua rau CRC tsis sib xws ntawm 400G PAM4 txoj kab uas nyuaj rau kev kuaj mob hauv kev tsim khoom vim tias lawv tsis ua rau cov xwm txheej nyuaj txuas{18}
Rau multimode ib puag ncig, qhov kev ncua deb nruj nruj heev ntawm txhua lub cim ceev. 10GBASE-SR module ncav cuag 300 meters tshaj OM3; ntawm 400G SR8, koj tab tom saib ntawm 70 meters ntawm tib lub fiber ntau ib IEEE 802.3cm. Yog tias koj nplooj ntawv -rau- txha nraub qaum khiav dhau qhov ntawd, qhov400G QSFP-DD hloov kho txoj kevyuav tsum muaj ib qho - hom kev tsiv teb tsaws chaw lossis kev hloov kho vaj tse kom luv luv ntawm lub cev, ob qho tib si yuav siv sij hawm ntau lub hlis los ua kom tiav thiab yuav tsum tau npaj kom zoo ua ntej ntawm transceiver procurement.
Xaiv Txoj Kev Ceev Tier: Qhov Kev Txiav Txim Siab Ua Rau Koj TCO
Kev npaj lub peev xwm kho qhov muag rau cov chaw zov me nyuam los ntawm peb qhov - qhov teeb meem sib txawv uas tsis tshwm sim ntawm cov ntaub ntawv muag khoom: cov saw hlau loj hlob tuaj, koj qhov chaw ua haujlwm, thiab ntau npaum li cas ntawm koj cov nqi hloov kho tag nrho nyob sab nraum tus nqi module.
400G muab plaub npaug ntawm bandwidth ntawm 100G ntawm kwv yees li 2.5 mus rau 3 npaug ntawm tus nqi module, qhov kev txhim kho tseem ceeb ntawm tus nqi ib gigabit. Tab sis nyob rau hauv 400G-rau-800G kev tsiv teb tsaws peb tau txhawb nqa, tus nqi module tau tas li yog cov kab me me. Hloov chassis, fais fab thiab cua txias infrastructure, cabling cog kev kho, thiab kev cob qhia pab neeg ua haujlwm sib sau ua ke ntau dua nws. Kev npaj ntawm tus nqi module ib leeg yog li cas cov koom haum xaus nrog transceivers uas technically ua haujlwm tab sis lub network uas ua haujlwm tsis tau.
QSFP-DD tswj kev rov qab sib raug zoo nrog QSFP28 tawb, uas txhais tau tias koj tuaj yeem nruab 400G- muaj peev xwm hloov pauv thiab txuas ntxiv ua haujlwm 100G modules uas twb muaj lawm thaum lub sijhawm tsiv teb tsaws. Qhov kev sib raug zoo rov qab tso cai rau koj nthuav tawm kev siv nyiaj thoob plaws ntau lub voj voog nyiaj txiag thaum tam sim tau txais cov txiaj ntsig ntawm lub platform tshiab ntawm silicon hloov tshiab, cov ntsiab lus tseem ceeb thaum koj xav tau kom pom tseeb qhov kev hloov kho rau CFO uas xav pom ROI hauv 18 lub hlis.
800G transceivers muajob npaug bandwidth dua ntawm 8 × 100G PAM4 txoj kab hauvOSFPlos yog QSFP-DD800 daim ntawv foos, nrog cov qauv kos duab 14–20W nyob ntawm qhov sib txawv (IEEE 802.3 df). Cov khoom siv hluav taws xob sib txawv ntawm qhov sib txawv ntawm 400G: tsawg dua cov neeg xa khoom tsim nyog, tsawg dua tus nqi sib tw, thiab lub sijhawm ua haujlwm ntev dua. Kev lag luam xa tawm cov ntaub ntawv tsis tu ncua qhia 90+ hnub faib cov voj voog rau 800G modules hauv ntim (Vitex).
Yog tias koj tab tom tsim lossis nthuav dav AI kev cob qhia cov txheej txheem uas GPU tsis ua haujlwm lub sijhawm los ntawm lub network tsis muaj nqi ntau txhiab ib teev, xa 800G ntawm qaum txuas tam sim no. Tus nqi them tus nqi them rau nws tus kheej hauv lub hlis dhau los ntawm kev txo nqi GPU tsis ua haujlwm, thiab 2 × FR4 breakout rau 400G nplooj ntoo uas twb muaj lawm tiv thaiv koj txoj kev tsiv teb tsaws chaw.
Yog tias koj tab tom hloov kho lub tsev kawm ntawv cov tub ntxhais kawm lossis WAN ntug uas yuav nqa cov khoom lag luam ib txwm ua haujlwm rau 3-5 xyoo tom ntej uas tsis muaj AI- cov tsheb khiav nyob ib sab hauv txoj kev npaj lub qab ntug, 400G lub ecosystem paub tab muab tau zoo dua tsib - xyoo TCO. Cov chaw muag khoom sib tw tam sim no tus nqi 400G lub ntsiab lus hauv qab thaum ntxov-lifecycle 800G ntawm ib -gigabit hauv paus.
Yog tias koj qhov kev ua haujlwm sib xyaw ua haujlwm tsis paub meej, thiab qhov ntawd yog qhov nruab nrab - cov chaw lag luam cov ntaub ntawv, lub neej ntawd mus rau 800G- muaj peev xwm hloov platforms tab sis populate nrog 400G transceivers pib. Koj tau txais lub platform headroom yam tsis muaj tus nqi them nqi, thiab koj hloov kho cov chaw nres nkoj ib tus zuj zus raws li cov tsheb xav tau.
1.6T transceivers tab tom nkag mus rau kev tsim khoom thaum ntxov lub hom phiaj hyperscale thiab NVIDIA- cov ntawv thov tshwj xeeb, nrog OSFP-XD tau txais cov qauv kev txhawb nqa los ntawm Open Compute Project (OCP). Volume pricing yuav tsis tshwm sim ua ntej 2027. Tsim koj cov nroj tsuag fiber ntau thiab hloov chassis kom haum 1.6T, tab sis tsis txhob cia nws ncua 800G xa mus rau koj cov kev xav tau niaj hnub no.
DWDM raws li Capacity Multiplier
Ib qhov loj me uas yuav luag txhua qhov kev sib tw ntawm cov ncauj lus no hla: koj tsis tas yuav xav tau cov transceivers sai dua kom tau txais ntau bandwidth los ntawm fiber ntau uas twb muaj lawm.
Rau metro DCI kev sib txuas hauv qab 80 km qhov twg koj muaj qhov tsaus nti fiber ntau nkag, DWDM muaj peev xwm nthuav dav tso cov kab tshiab ntawm tus nqi hauv ze li txhua qhov xwm txheej peb tau siv. Lub C-band DWDM tsim tau zoo txhawb nqa 80+ txoj kev ywj pheej ntawm ib khub fiber ntau. Extending rau hauv L-band ob npaug rau qhov ntawd. Kev tshawb fawb rau hauv ntau-band pob tshab optical tes hauj lwm tau lees tias txoj hauv kev no feem ntau pheej yig dua li cov teeb pom kev tsaus nti ntxiv thaum xa cov peev xwm sib piv (ScienceDirect).
Peb tau siv qhov no rau cov neeg siv kev pabcuam nyiaj txiag txuas nrog lub chaw pabcuam cov ntaub ntawv tseem ceeb rau 12 ceg haujlwm hauv cheeb tsam metro. Cov txheej txheem qub yog 10G taw tes-rau- taw tes rau ntawm cov hlua khi dub. Lawv tau khiav tawm ntawm wavelengths, tsis muaj peev xwm fiber ntau. Kev daws: FB-LINK CWDM-10G modules ntawm ib qho18-channel passive mux/demuxntawm txhua qhov kawg, muab kev mob siab rau 10 Gbps wavelengths rau tag nrho 12 qhov chaw ntxiv rau 6 qhov chaw seem rau kev nthuav dav yav tom ntej, tsis tas kov ib txoj hlua ntawm lub cev cog. Tag nrho cov sij hawm xa tawm yog nyob rau hauv peb lub lis piam ib qhov chaw, piv rau 4-6 lub hlis ncua sij hawm lawv cov neeg ua haujlwm tsim kho tau hais kom ntxiv fiber ntau rub.
Qhov tiag barrier rauKev xa tawm DWDMtsis yog technology. Yog tias koj pab neeg yog Ethernet- nkaus xwb, pob nyiaj siv 3–6 lub hlis rau kev hloov pauv kev txawj ntse. Txoj kev qhia meej yog nyob ntawm seb koj puas siv cov CWDM passive, amplified DWDM, los yog txuas mus rau L-band, thiab txhua qhov kev xaiv muaj qhov cuam tshuam sib txawv rau koj cov fiber ntau poob profile thiab amplification xav tau.
LPO, CPO, thiab lawv txhais li cas rau Koj Lub Sijhawm Npaj
Ob lub thev naus laus zis tshiab yuav hloov kho qhov txheej txheem kev npaj kho qhov muag nyob rau peb lub xyoos tom ntej, thiab koj cov kev txiav txim siab hauv vaj tse niaj hnub no yuav tsum suav rau ob qho tib si, txawm tias tsis hloov qhov koj yuav tsum siv tam sim no.
Linear-tsav Pluggable Optics (LPO) tshem tawm lub hwj chim- tshaib plab DSP hauv lub transceiver module, txuas linear TIAs thiab cov tsav tsheb ncaj qha mus rau qhov hloov ASIC. Qhov tshwm sim: 30-50% qis zog noj thiab latency txo qis qis dua 15 nanoseconds piv rau cov pa retimed modules (LightCounting ntawm Introl). Rau cov GPU ntom ntom uas txhua watt ntawm optical fais fab yog ib watt tsis muaj los suav, LPO hloov lub peev xwm -ib - khib sib npaug muaj txiaj ntsig. Standardization tau nce mus los ntawm OIF, nrog rau kev xa tawm thawj zaug hauv qhov ntsuas qhov ntsuas siab tshaj - nce cov tes hauj lwm xav tau hauv 2026-2027.
Co- ntim optics embeds lub cav photonic ncaj qha mus rau qhov hloov ASIC pob, txiav kho qhov muag - txheej zog los ntawm kwv yees li 15 pJ / ntsis mus rau kwv yees li 5 pJ / ntsis, 3 × kev ua tau zoo tau pom los ntawm Broadcom's Bailly 51.2T CPO platform. Tab sis CPO tshem tawm cov teb- hloov kho qhov muag, uas txhais tau hais tias photonic- txheej tsis ua haujlwm tuaj yeem yuam hloov tag nrho lub rooj tsavxwm. Qhov kev lag luam ntawd- tawm ua rau CPO txwv tsis pub rau cov neeg ua haujlwm hyperscale tsim kev cai silicon mus txog tsawg kawg 2027 (ntxiv rau pluggable vs. CPO pauv -offs).
Qhov cuam tshuam zoo rau kev npaj: tsim koj lub zog thiab cov txheej txheem txias kom tswj tau 15-20W ib 800G module hnub no. Thaum LPO loj hlob tuaj, koj yuav rov qab tau 30-50% ntawm cov peev nyiaj siv hluav taws xob yam tsis tau hloov pauv lub cev. Qhov rov qab fais fab headroom yog koj txoj kev muaj peev xwm nthuav dav dawb.
Phased Deployment: 400G-rau-800G Migration Sequence
Pib qhov kev hloov kho tus txha caj qaum thaum ib qho chaw nres nkoj txha caj qaum txhawb kev siv siab tshaj 70% thaum lub caij tsheb khiav ceev, tsis yog ntawm 80%, vim hais tias ntawm lub sijhawm ntawd koj twb tau ntsib cov microbursts uas ua rau tsis txaus, thiab lub sij hawm ua cov khoom siv rau 800G faib yuav txuas ntxiv koj lub qhov rais congestion los ntawm 90+ hnub.
Tus txha nraub qaum- ua ntej yog kev coj ua qauv rau Clos fabrics. Txhim kho tus txha nraub qaum mus rau 800G thaum khaws cov nplooj ntawm 400G ua haujlwm huv ntawm kev tawg: ib qho 800G 2 × FR4 chaw nres nkoj txuas mus rau ob lub 400G FR4 chaw nres nkoj, ob npaug qaum qaum bandwidth yam tsis tau kov cov nplooj nplooj. Covpluggable module architectureuas ua rau qhov no ua tau kuj yog vim li cas koj tuaj yeem ua qhov kev hloov kho tshiab nrog xoom downtime: rub ib tus txha nraub qaum ntawm ib lub sijhawm, rov qab ECMP, hloov kho, txheeb xyuas DDM nyeem, txav mus rau tom ntej.
Cov ntsiab lus tseem ceeb ntawm kev yuav khoom
Order optical modules tsawg kawg yog 90 hnub ua ntej koj GPU lossis hnub xa khoom xa tuaj. Kev lag luam xa tawm cov ntaub ntawv tsis tu ncua qhia tau hais tias kev xa khoom transceiver, tsis yog thev naus laus zis, yog qhov twg 800G cov phiaj xwm tsiv teb tsaws tsis ua tiav. GPUs tuaj txog, kho qhov muag kho qhov muag tsis tau, thiab cov nqi suav tsis suav nrog. Yog tias koj tab tom npaj ib qho chaw xa tawm 500+ chaw nres nkoj, ruaj ntseg faib 120 hnub tawm thiab lees paub tus neeg muag khoom lub sijhawm ua haujlwm txhua hli. Supply chain volatility ntawm 800G speeds tseem siab dua ntawm 400G.
Dab Tsi Mus Tsis Zoo: Cov Lus Qhia los ntawm Kev Tsim Khoom Siv
AWS tau tshaj tawm cov ncauj lus kom ntxaws txog yuav ua li cas lawv 100G-rau-400G kev hloov pauv pib nce kev sib txuas tsis ua haujlwm thoob plaws kaum lab ntawm kev sib txuas kho qhov muag, qhov tshwm sim tsis zoo rau kev hloov kho thev naus laus zis. Lub hauv paus ua rau tsis yog cov transceivers lawv tus kheej tab sis qhov sib xyaw ua ke tawg ntawm ntau tus neeg muag khoom sib cuam tshuam: ntau qhov kev hloov ASICs × ntau tus neeg muag khoom DSP × ntau tus neeg muag khoom tsim tau ib qho kev sim matrix uas tsis muaj ib lub voj voog tsim nyog tuaj yeem npog tag nrho (AWS).
Feem ntau cov tuam txhab tsis tuaj yeem rov ua dua AWS tus neeg muag khoom leverage. Tab sis zaj lus qhia txo qis: sim koj qhov kev hloov pauv tshwj xeeb- mus rau - kev sib txuas ntawm transceiver hauv koj tus kheej ib puag ncig ua ntej kev xa khoom, sivUa ntej-FEC BER thiab VDM telemetry raws li kev lees paub, tsis yog txuas -up/link-down. Peb tau ntes tau ib chav kawm tshwj xeeb ntawm kev ua tsis tiav los ntawm cov txheej txheem no: cov qauv uas dhau qhov kev tsim nyog tau txais tab sis qhia tau hais tias tsis muaj Rx rhiab heev nyob rau hauv thermal stress, ua rau Pre-FEC yuam kev saum toj 1e-4 tsuas yog ntawm cov khoom lag luam ruaj khov. Cov qauv ntawd tshwm sim feem ntau nrog qee yam DSP-rau- hloov ASIC ua ke. Peb cov ntaub ntawv ua ntej tau lees paub ua ntej rau Cisco, Arista, Juniper, thiab Dell platforms muaj nyob rau ntawm kev thov.
Kev tsim kho yav tom ntej- cov ntaub ntawv pov thawj fiber ntau kuj txhais tau tias tau txais cov khoom siv ntau dhau txoj cai. Corning pom zoo 25-100% fiber ntau overprovisioning raws li qhov xav tau tsis meej (Corning). Qhov ntau yam yog qhov dav dhau los ua qhov ua tau yam tsis muaj cov ntsiab lus, yog li ntawm no yog li cas peb faib nws:
Scenario A
Yog tias koj txoj kev npaj 3-xyoo capex tau pom zoo thiab koj cov chaw hneev taw tau kho, 25-30% fiber ntau txaus. Koj paub qhov twg cov racks yuav nyob; koj tab tom npaj rau qhov ceev nce, tsis hloov topology.
Scenario B
Yog tias koj nyob rau theem kev loj hlob nrog qhib- xaus kev nthuav dav suav tab sis lub tsev kawm ntawv tau hais tseg, 50% yog qhov tsim nyog hauv pem teb. Khaws qhov kawg sab saud, 75-100%, rau greenfield conduit khiav qhov twg rub ntxiv cable tom qab yuav txhais tau tias tawg pob zeb. Stranded fiber ntau yog tus nqi tiag tiag, tab sis nws yuav luag pheej yig dua li kev tsim kho yav tom ntej.
Tsim Koj Txoj Kev Npaj Kho Hniav Optical
Tsib qhov kev txiav txim siab, ua ntu zus. Txhua lub rooj vag tom ntej.
1. Lub hauv paus ntawm koj cov nroj tsuag fiber ntau tam sim no.
Ntsuas qhov poob thiab rov qab poob ntawm txhua txoj hauv kev uas koj npaj yuav hloov kho, tsis yog los ntawm cov ntaub ntawv teeb tsa, tab sis nrog OTDR tam sim no thiab cov ntsuas hluav taws xob nyeem. Yog hais tias ib qho kev sib tshuam -txoj kev sib txuas tshaj qhov txuas tsis siv nyiaj rau koj lub hom phiaj nrawm (1.5 dB rau 400G SR4, nruj dua rau 800G), kho dua ua ntej xaj transceivers. Peb lub chaw kuaj mob tuaj yeem ua haujlwmtxuas kev txheeb xyuas pob nyiaj sivtiv thaiv koj lub platform hloov tshwj xeeb yog tias koj xav tau ob lub qhov muag.
2. Huab cua bandwidth xav tau los ntawm qib network.
Kab laug sab, nplooj, thiab DCI txuas loj hlob ntawm tus nqi sib txawv. AI kev cob qhia pawg tuaj yeem siv ob leeg txha caj qaum hauv 12 lub hlis; kev lag luam hauv tsev kawm ntawv cores tsis tshua muaj kev loj hlob sai dua 15-20% txhua xyoo. Sib piv cov kev kwv yees rau qib, tsis yog ib daim pam tus lej.
3. Xaiv qhov ceev tier ib txheej network.
Siv peb -scenario moj khaum saum toj no. Rau tam sim no - tiam kev xaiv transceiver hla 100G txog 800G, hla- hais txog koj cov nroj tsuag fiber ntau los ntawm kauj ruam 1. Cov qauv koj xav tau tsuas yog siv tau yog tias koj cov cabling tuaj yeem nqa tau.
4. Ua raws li tus txha nraub qaum ua haujlwm- ua ntej.
Ua rau ntawm 70% kev siv tus txha nraub qaum. Siv breakout optics los txuas qhov sib txawv ntawm cov leeg txha caj qaum thiab cov nplooj uas twb muaj lawm. Npaj xoom- ncua sij hawm txiav tawm los ntawm kev txhim kho ib qho txuas ntawm ib lub sijhawm nrog ECMP rebalancing.
5. Teem caij yuav khoom kom suav cov khoom xa tuaj.
90-hnub lub sijhawm ua haujlwm yam tsawg kawg nkaus rau 800G faib. Paub meej txhua hli. Yog tias koj qhov kev xa tawm ntau tshaj 500 qhov chaw nres nkoj, txuas mus rau 120 hnub thiab ua kom muaj ntau tus neeg xa khoom. Ib qho kev pheej hmoo ntawm 800G ntim yog tiag tiag.
Yog tias koj tab tom ua haujlwm dhau los ntawm cov kauj ruam 1-3 thiab xav tau kev pab cuam cuam tshuam cov nroj tsuag fiber ntau rau transceiver specifications, qhov no yog ib qho kev sib tham tsim nyog pib ua ntej lub voj voog khoom yuav raug kaw. Peb 400G qauv qauv nkoj los ntawm Tshuag; kev cai- coded variants siv sijhawm 7-10 hnub ua haujlwm.
FAQ
Q: Kev npaj kho qhov muag muaj peev xwm yog dab tsi?
A: Nws yog cov txheej txheem ntawm kev kwv yees fiber ntau network bandwidth yuav tsum tau thiab ua kom zoo dua transceiver technology, cabling infrastructure, thiab xa mus rau lub sij hawm kom tau raws li qhov kev thov tsis overinvesting los yog tsim bottlenecks.
Q: Kuv yuav ntsuas li cas yog tias kuv cov nroj tsuag fiber ntau txhawb 400G lossis 800G?
A: Khiav ib qho kev ntsuam xyuas nyiaj txiag txuas nrog txhua qhov txuas, sib txuas, thiab khoov. PAM4 signaling muaj cov suab nrov nrov dua li NRZ, yog li cov nroj tsuag fiber ntau uas ua haujlwm ntawm 100G feem ntau ua tsis tiav ntawm qhov nrawm dua.
Q: Kuv puas yuav tsum xa 800G tam sim no lossis tos 1.6T?
A: Kev xa tawm raws li kev xav tau tsheb thauj mus los tam sim no, tsis yog cov khoom muaj nyob rau yav tom ntej. Tsim kev tsim kho vaj tse kom haum rau 1.6T, tab sis tsis txhob ncua 800G xa tawm koj cov haujlwm yuav tsum tau ua hnub no.
Q: Dab tsi yog qhov kev hloov kho kho qhov muag feem ntau yuam kev?
A: Ua kom pom tseeb ntawm transceiver ceev thaum tsis quav ntsej txog kev npaj fiber ntau. Unplanned re-kab kab mob thaum tsiv teb tsaws feem ntau raug nqi ntau dua li cov modules lawv tus kheej.
Q: Qhov twg DWDM haum rau kev npaj peev xwm?
A: DWDM muab ntau lub peev xwm ntawm cov fiber ntau uas twb muaj lawm los ntawm kev ntxiv cov wavelengths, tus nqi -txoj kev zoo rau kev tso cov kab tshiab, tshwj xeeb tshaj yog rau metro DCI txuas hauv qab 80 km nrog kev siv fiber ntau tsaus.