Artificial txawj ntse yog reshaping data center tsim. Feem ntau ntawm cov xim mus rau GPUs, accelerators, thiab cua txias, tab sis cov txheej uas ntsiag to txiav txim siab seb tus so ntawm kev tsim ua tiav yog cov cabling. Hauv ib pawg AI, txheej txheej ntawm lub cev txiav txim siab seb koj puas tuaj yeem ncav cuag 400G thiab 800G, txawm tias qhov siab - cov kev sib txuas ceev ceev kom huv si txaus kom dhau kev khiav tsheb, txawm tias huab cua muaj sia nyob hauv cov khib nyiab uas muaj neeg nyob, thiab seb koj qhov kev dhia ceev tom ntej no yog daim npav sib pauv lossis hloov kho lub forklift.
Phau ntawv qhia no yog sau rau infrastructure thiab kho qhov muag - pab pawg network. Nws piav qhia txog dab tsi ua rau AI cabling sib txawv, qhov yuav tsum tau muaj qhov tseem ceeb ntawm cov lej tiag, yuav ua li cas los sib piv DAC, AOC, thiab cov qauv fiber ntau, ib kauj ruam - los ntawm - kauj ruam kev npaj ua haujlwm, dab tsi los npaj ua ntej 400G lossis 800G tsiv teb tsaws, thiab daim ntawv teev npe koj tuaj yeem siv tiag tiag. Cov ntaub ntawv pov thawj ntawm no yog ua raws li IEEE 802.3 thiab ANSI / TIA-942 cov qauv tam sim no.
Vim li cas AI Workloads Hloov Cov Ntaub Ntawv Cabling Requirements
Cov chaw lag luam ib txwm siv cov ntaub ntawv tau tsim nyob ib puag ncig cov ntaub ntawv siv tau yooj yim, feem ntau ntawm nws sab qaum teb- sab qab teb, txav ntawm cov neeg siv, daim ntawv thov, thiab cov network sab nraud. AI pawg invert tus qauv. Thaum lub sij hawm kev cob qhia thiab loj -scale inference, qhov tseem ceeb ntws yog sab hnub tuaj-west: GPUs tas li pauv gradients thiab activations nrog ib leeg los ntawm kev ua hauj lwm xws li tag nrho cov -txo, feem ntau dhau ib tug tej thaj chaw deb direct memory access (RDMA) ntaub.
Qhov no yog pom nyob rau hauv cov neeg muag khoom siv tsim qauv. NVIDIA tsim lub GPU suav network raws li RDMA-raws li nplooj- qaum ntaub siv arail -optimized topology thiaj li hais tias ib qho GPU yog nyob rau hauv feem ntau ntawm ib lub plhaw los ntawm lwm yam, uas yog qhov ua kom ntau -GPU kev sib txuas lus zoo ntawm qhov ntsuas. Qhov txiaj ntsig ntawm cabling yog sheer chaw nres nkoj suav: ib yim yim-GPU node tuaj yeem nthuav tawm yim 400G (lossis 800G) sab hnub tuaj-chaw nres nkoj sab hnub poob, thiab lub pod cob qhia nrog ob peb nplooj ntawv hloov pauv rau ib lub khib sib npaug ntawm lub cev fiber ntau thiab patching sai heev.
Thaum cov txheej txheem lub cev nyob rau hauv - npaj, cov teeb meem tsis tshwm sim rau hnub ib. Lawv tshwm sim tom qab, raws li txoj hauv kev congested uas choke airflow, raws li kev sib cais txhaum uas yuav siv sij hawm teev es tsis txhob feeb, thiab raws li rework thaum lub sij hawm thawj lub voj voog hloov tshiab. Ib qho kev nthuav dav uas zoo li tsis tseem ceeb, xws li thim rov qab MPO polarity lossis qhov kawg ntawm qhov tsis sib haum, tuaj yeem nqa tag nrho cov tsheb ciav hlau offline. Rau AI infrastructure, cabling belongs rau hauv architecture los ntawm qhov pib, tsis yog qhov kawg ua ntej commissioning.
Traditional vs AI-Ready Data Center Cabling
Qhov sib txawv ntawm cov tsoos thiab AI-npaj cabling yog ib qho kev hloov ntawm kev tsim qauv, tsis yog cov xov tooj loj dua. Cov qauv tsim ua kom zoo rau kev sib txuas niaj hnub no; AI- npaj tsim kho kom zoo rau kev tsiv teb tsaws ceev, ceev, kev sib txuas tau zoo, thiab kev ua haujlwm tau zoo nyob rau ntau lub voj voog hloov tshiab.
| Tsim yam | Traditional data center cabling | AI-npaj cov ntaub ntawv chaw cabling |
|---|---|---|
| Cov qauv tsheb | Predictable, feem ntau sab qaum teb -sab qab teb hnyav | Hnyav sab hnub tuaj- sab hnub poob GPU- mus rau -GPU tsheb hla RDMA fabrics |
| Kev npaj ceev | Qhov loj me rau kev ceev network tam sim no | Npaj rau 400G thiab 800G, nrog txoj kev mus rau 1.6T |
| Qhov ntom | Nruab nrab qhov chaw nres nkoj thiab fiber ntau | High -Density Parallel Fiber, Base-8 thiab Base-16 MTP/MPO |
| Cable tswj | Feem ntau kho raws li lub koom haum | Kho raws li ib feem ntawm airflow, uptime, thiab txij nkawm |
| Txhim kho txoj kev | Feem ntau yuav tsum tau rov- rub cable | Modular: swap optics thiab cassettes, khaws cov nroj tsuag fiber ntau |
| Kev tu | Phau ntawv tracing, qeeb qeeb | Kuaj, sau npe, sau tseg, nrog txoj hauv kev tau hais tseg |
Lub hom phiaj yog cov nroj tsuag fiber ntau uas tuaj yeem nqus tau tsawg kawg yog ib qho kev dhia nrawm thiab ib lub peev xwm nthuav dav yam tsis muaj kev kho dua tshiab.
Cov Lus Qhia Tseem Ceeb rau AI Data Centers
Npaj lub cev txheej rau 400G thiab 800G, Tsis yog Hnub Nyoog Ceev
AI pawg txav mus rau tus ntaiv nrawm nrawm, los ntawm 100G mus rau 400G, 800G, thiab thaum kawg 1.6T. Lub 400G thiab 800G interfaces yog tam sim no tsim qauv:IEEE 802.3df, tau pom zoo hauv xyoo 2024, txhais cov MAC, txheej lub cev, thiab kev tswj tsis tau rau 400 Gb / s thiab 800 Gb / s Ethernet, suav nrog hom xov xwm lub cev xws li 800GBASE-SR8 thiab 800GBASE-DR8. Ntawm cov cuab yeej siv, 400G feem ntau nyob hauv QSFP-DD lossis QSFP112 daim ntawv foos, thaum 800G siv OSFP lossis QSFP-DD800. Yog tias koj tab tom sib piv cov ntim transceiver thiab txoj kab kev qhia, qhov noQSFP-DD technical overviewyog qhov pib muaj txiaj ntsig.
Txoj cai siv tau: hom fiber ntau, suav fiber ntau, thiab txuas lub hauv paus kom cov nroj tsuag muaj sia nyob ntawm qhov dhia tom ntej. Lub cev dimensioned tsuas yog rau hnub no qhov chaw nres nkoj ceev dhau los ua lub fwj thaum lub sijhawm hloov silicon thiab optics txav mus tom ntej.
Siv High-Density MTP/MPO Fiber rau GPU-Cluster Connectivity
Siab -Kev ceev AI txuas yog qhov sib npaug ntawm optics, thiab daim duab qhia kev sib txuas ncaj qha mus rau cov suav fiber ntau. A 400G-DR4 txuas siv plaub txoj kab, lossis yim fibers, feem ntau txiav tawm hauv MPO-12 ferrule. Ib qho 800G-SR8 lossis 800G-DR8 txuas siv yim txoj kab, lossis kaum rau fibers, feem ntau yog MPO-16 nrog APC endfaces. Base-8 thiab base-16 MTP / MPO trunks paired nrog cassettes sib sau ua ke ntau pua ntawm cov kev sib txuas ntawm ib lub khib thiab tig xa mus rau hauv kev rov ua dua, lub Hoobkas-kuaj txav es tsis yog kev sib txuas ntawm thaj chaw. Pre-terminatedMTP / MPO lub cev cablesthiab kev sib koom ua ke (MPO rau LC lossis MPO rau MPO) yog lub hauv paus ntawm txoj hauv kev no.
Qhov ceev tseem yuav tsum tau npaj, tsis ua kom tiav. Kev ntim cov fiber ntau rau hauv khib nyiab yam tsis xav txog txoj hauv kev sau thiab airflow tsim rov qab -siab ntawm cov khoom siv hluav taws xob thiab ua rau cov chaw nres nkoj tsis tuaj yeem ua haujlwm. Teem qhov sib piv thiab slack- kev tswj xyuas ua ntej, tsis yog tom qab, thawj qhov kev teeb tsa.
Tswj Cov Kev Txhaum Txhaum Cai, Kev Sib Txuas Kev Ncauj Lus, thiab Polarity
Siab -Kev ceev AI optics tsis muaj kev zam txim tsawg dua li cov kev sib txuas uas tuaj ua ntej lawv. PAM4 signaling siv ntawm 400G thiab 800G khiav ntawm nruj channel poob nyiaj ntau dua li qub NRZ txuas, thiab txhua tus khub MPO lossis LC khub ntxiv qhov poob, feem ntau ob peb feem kaum ntawm ib qho kev sib txuas. Thoob plaws hauv cov txheej txheem channel nrog ntau lub ntsiab lus sib txuas thiab qhov ntev ntawm fiber ntau, cov peev nyiaj ntawd ploj mus sai, yog li kev suav suav yog qhov tsim qauv sib txawv, tsis yog kev xav tom qab. Qhov sib txawv ntawm qhov poob thiab rov qab poob, thiab vim li cas ob qho tib si tseem ceeb ntawm cov khoom sib txuas, yog qhov tsim nyog nkag siab ua ntej koj ua tiav cov channel; tus piav no raukev poob qis hauv fiber ntaunpog cov tshuab.
Kev kis kab mob yog ib qho ua rau ua rau kev sib txuas tsis ua haujlwm, yog li txhua qhov kawg yuav tsum tau tshuaj xyuas thiab ntxuav ua ntej mating. Polarity xav tau cov tswv yim qhia meej (Txoj Kev A, B, lossis C), thiab ib qho - hom kev sib txuas sib txuas feem ntau siv cov kab sib txuas APC los tswj kev poob rov qab. Khoov vojvoog teeb meem hauv cov vaj huam sib luag ntom ntom, qhov khoov- tsis muaj fiber ntau yuav cov npoo. Kev ntseeg ntawm no yog kev teeb tsa thiab kev saib xyuas kev qhuab qhia ntau npaum li qhov kev xaiv xaiv.
Tsim ib qho Modular, Scalable Structured -Cabling Architecture
AI cov txheej txheem hloov pauv ntawm lub voj voog luv luv, yog li cov nroj tsuag uas nyuaj los hloov kho qeeb txhua qhov kev xa mus rau yav tom ntej. Kev tsim cov cab cab, ua los ntawm cov pob tw, cov ntaub ntawv, cov ntaub thaiv npog, thiab txoj hauv kev uas tau hais tseg, cia cov pab pawg ntxiv muaj peev xwm los yog rov ua dua - cov ntaub ntawv tsis muaj re- rub cable.ANSI/TIA-942 qhia txog yam tsawg kawg nkaus hauv kev sib txuas lus kev sib txuas lus rau cov chaw zov me nyuam cov ntaub ntawvthiab cov cabling topology txhais tau tias kom haum rau cov ntawv thov yav tom ntej, uas yog raws nraim qhov kev xav tau ntawm AI tsim. Nrog rau lub hauv paus no, kev hloov pauv ceev feem ntau dhau los ua qhov teeb meem ntawm kev sib pauv optics thiab cassettes es tsis yog rov tsim kho cov txheej txheem lub cev.
Txoj Kev Cables rau Airflow thiab Txias hauv Siab -Density Racks
AI racks khiav kub. Lub zog ceev nyob rau hauv qhov ntom ntom GPU racks tuaj yeem tshaj 100 kW, thiab ntawm cov theem no congested cabling ncaj qha ua rau recirculation thiab localized hot spots.ASHRAE TC 9.9 kev taw qhia thav duab thermal tswj nyob ib puag ncig cov khoom siv IT inlet thiab huv huv -aisle / txias- aisle sib cais, thiab cabling los txhawb qhov ntawd lossis ua haujlwm tawm tsam nws. Hauv kev coj ua uas txhais tau hais tias txoj hauv kev hla lub taub hau fiber ntau yog qhov ua tau, kev sib cais ntawm lub zog thiab cov ntaub ntawv, ntsug thiab kab rov tav cov thawj tswj qhov loj me rau cov xov tooj tiag tiag, kev qhuab qhia slack, thiab routing uas tsis thaiv cov pa tawm hauv qab lossis lub qhov cub. Kev tswj cov kab hluav taws xob uas ua kom cov kev sib txuas tau zoo kuj tseem cuam tshuam tib neeg kev ua yuam kev thaum tsiv thiab hloov.
DAC, AOC, lossis Structured Fiber? Ib qho AI Data Center Cabling Xaiv Matrix
Tsis muaj ib qho nruab nrab zoo tshaj plaws rau AI pawg; txoj kev xaiv yog tsav los ntawm kev ncav cuag thiab lub luag haujlwm. Hauv ib lub khib, luv - ncav cuag tooj liab tseem yeej ntawm tus nqi, lub zog, thiab latency. Raws li cov kev sib txuas hla cov kab thiab cov tsev, ib qho - hom fiber ntau dhau los ua cov pob txha loj. Cov matrix hauv qab no sib piv cov kev xaiv sib txawv uas qhov kev tshuaj xyuas tsim tau hnyav rau lawv.
| Kev xaiv | Hom ncav cuag | Yam ceev | Qhov twg nws haum | Media thiab connector | Nqi thiab lub zog | Qhov zoo tshaj plaws - haum rau siv |
|---|---|---|---|---|---|---|
| Passive DAC | Txog li 3 m | Txog li 400G (piv txwv li 400G-CR8) | Intra-rack thiab nyob ib sab-rack top- ntawm- khib | Twinax tooj liab, integrated xaus | Tus nqi qis tshaj, qis zog, qis tshaj latency | GPU los yog neeg rau zaub mov rau nplooj nyob rau hauv tib lub khib los yog tom ntej no |
| AOC | Ob peb meters mus txog 30 m, ntev dua nyob rau qee kis | 400g thiab 800g | Hauv ib kab, hla cov racks nyob ze | Multimode core, tsau transceiver kawg | Tsawg zog, tsis muaj qhov kawg ntawm qhov chaw tu | Cov neeg rau zaub mov ruaj khov-rau- nplooj ntawv txuas dhau DAC ncav cuag |
| Multimode structured fiber ntau (OM4 / OM5) | Kaum meters, txog li 100 m, luv ntawm 800G | 400G thiab 800G SR / VR | Nplooj- qaum hauv ib lub tsev | OM4 / OM5 nrog MTP / MPO thiab LC | Reusable thiab siv tau | Nplooj ntawv luv-rau- qaum thiab kab - mus rau - kab txuas |
| Tib - hom qauv fiber ntau (OS2) | 500 m txog 2 km (DR / FR), mus txog 10 km (LR) | 400G thiab 800G DR / FR / LR | Ntxaij, hla-chav, hla- tsev | OS2 nrog MTP/MPO (APC) thiab LC/APC | Tshaj siab tshaj plaws thiab scalability | Cov kab mob txha nraub qaum, hla -chaw thiab loj dua GPU ntaub |
Qhov no kuj yog vim li cas daim pam nqe lus zoo li "fiber yog ib txwm nyiam" xav tau ib qho lus ceeb toom: fiber ntau yog lub hauv paus loj tuaj rau cov ntaub, tab sis ib qho DAC passive tseem yog qhov kev xaiv zoo tshaj plaws rau ib qho -meter hop hauv khib.
Yuav Ua Li Cas Npaj AI Data Center Cabling, Ib kauj ruam los ntawm kauj ruam
Kauj ruam 1: Daim ntawv qhia AI Workload thiab Network Topology
Pib nrog kev ua haujlwm. Lub taub hau kev cob qhia loj, lub siab -throughput inference fleet, ib pawg HPC, thiab ib qho chaw cia- hnyav xa mus tsis qhia tib yam kev khiav tsheb. Tom qab ntawd daim ntawv qhia qhov twg GPU xam (sab hnub tuaj-west), cia, sab qaum teb- sab qab teb, thiab tawm- ntawm -band tswj kev sib txuas. Kev xa tawm dawb huv yuav tsis xav tau sab hnub tuaj loj - sab hnub poob ntaub txhua, thaum ntau -rack kev cob qhia pod yuav. Tsim kom muaj kev khiav tsheb tiag tiag, tsis yog qhov siab ntawm khib.
Kauj ruam 2: Xauv tam sim no thiab yav tom ntej ceev hom phiaj
Txhais ob theem thawj thiab thib ob. Yog tias lub plhaub taum pauv 400G hnub no thiab 800G xyoo tom ntej, cov nroj tsuag fiber ntau yuav tsum loj dua 800G tam sim no. Tshaj li lub qab ntug ntawd, txoj haujlwm ntawm terabit-chav kawm Ethernet twb tab tom ua: lubIEEE P802.3dj lub luag haujlwm ua haujlwm yog txhais 200G, 400G, 800G, thiab 1.6 Tb/s ua haujlwm siv 200 Gb/s-ib - txoj kab qhia. Paub txog qhov twg daim ntawv qhia taug kev mus qhia koj ntau npaum li cas fiber ntau suav thiab txoj hauv kev muaj peev xwm khaws cia.
Kauj ruam 3: Xaiv Media thiab Connectors Nrog Margin
OS2-vim-OM4 lo lus nug feem ntau yog cov lus nug txog. OM4 yog qhov zoo rau sub-100 m nplooj-sab qaum txuas, tab sis ncav cuag qhov qis qis thaum nce nrawm, yog li ib zaug txuas hla kab lossis chav tsev, lossis ib zaug koj xav tau 800G DR / FR headroom, ib hom OS2 yog lub hauv paus muaj kev nyab xeeb dua. Kev tshuaj xyuas covnrug txwv ntawm OM1 txog OM5 multimode fiber ntauua rau kev lag luam- tawm ntawm kev ua vaj tse. Sib piv MPO puag (12 piv rau 16) rau optic daim ntawv qhia fiber ntau, thiab npaj polarity ntxov; rau siab - ntom ntom panels noMTP vs MPO xaiv phau ntawv qhianpog qhov sib txawv uas tseem ceeb. Qhov twg lub transceiver thiab chaw nres nkoj ceev tsis kab, npaj breakouts (MPO rau LC) es tsis yog improvising thaum lub sij hawm nruab.
Kauj Ruam 4: Npaj Rack Density, Pathways, thiab Airflow ua ke
Rack layout, cable routing, thiab cua txias yog ib qho kev txiav txim siab nyob rau hauv ib puag ncig siab - ceev AI, tsis yog peb. Ua ntej kev teeb tsa, suav ntau npaum li cas cables nkag mus thiab tawm hauv txhua lub khib, txiav txim siab qhov twg thaj chaw zaum, npaj slack, thiab paub meej tias tus kws tshaj lij tuaj yeem ncav cuag thiab hloov chaw nres nkoj yam tsis muaj kev cuam tshuam cov kev sib txuas. Tshem tawm lub taub hau loj hlob rau hauv cov tais thiab sau qhov sib piv. Ib lub khib nyiab uas zoo nkaus li huv ntawm kev ua haujlwm yuav tsis tuaj yeem ua haujlwm tom qab ob lub voj voog hloov kho yog tias txoj hauv kev tau ua tiav rau hnub ib.
Kauj Ruam 5: Xeem, Cov ntaub ntawv, thiab tuav kom Spec
Ntsuas txhua qhov txuas mus rau qhov project specification, uas rau siab - fiber ntau ceev txhais tau tias ntxig rau -kev xeem tsis tau, OTDR qhov tsim nyog, polarity verification, thiab endface inspection. Cov ntaub ntawv txhua qhov chaw nres nkoj, lub cev, lub tshuab luam ntawv, thiab txoj hauv kev, suav nrog cov txheej txheem polarity, ntev, thiab ntsuas qhov poob, nrog rau cov ntawv qhia uas ua raws li - cov duab kos. Kev saib xyuas tom qab ntawd dhau los ua niaj hnub: kev tu lub ntsej muag, kev tshuaj xyuas ib ntus, thiab daim ntawv lo thiab kev hloov pauv. Tom qab suabfiber optic cable installation xyaumrau rub nro thiab khoov vojvoog tiv thaiv cov nyiaj poob haujlwm uas koj tau sim rau.
Yuav Ua Li Cas Npaj Ua Ntej 400G lossis 800G Migration
Kev tsiv teb tsaws tsis nyob rau ntawm lub cev txheej ntau dua li ntawm optics. Ua ntej koj txiav tawm, ua haujlwm raws li hauv qab no:
- Paub meej tias hom fiber ntau thiab suav, thiab xyuas kom meej tias OM4 uas twb muaj lawm tseem mus txog ntawm lub hom phiaj ceev, vim tias qhov kev txhawb nqa tau poob qis thaum kab tus nqi nce.
- Xyuas tias lub hauv paus connector sib phim cov optics tshiab (MPO-12 piv rau MPO-16) thiab tias cov txheej txheem polarity tseem tuav qhov kawg.
- Recompute qhov link poob nyiaj txiag rau PAM4, tom qab ntawd txo cov kev sib txuas suav qhov twg koj tuaj yeem ua tau thiab rov- tshuaj xyuas txhua qhov kawg.
- Paub meej txog txoj hauv kev thiab lub tais muaj peev xwm ntxiv rau cov cabling ntxiv, thiab paub meej tias cov khib nyiab thermal headroom rau siab dua - fais fab optics.
- Theem cassettes, pob tw, daim ntawv lo, thiab cov phiaj xwm kev sim ua ntej kom qhov kev txiav tawm yog kev sib pauv-hauv, tsis yog rov- rub.
Feem ntau yuam kev kom zam
Sizing tsuas yog rau hnub no lub bandwidth.Ib tsob nroj tsim rau cov hnub nrawm tam sim no sai sai. Tsim nyob rau hauv txoj kev muaj tiag kom siab dua thiab siab dua qhov chaw nres nkoj.
Kho cov kab kev tswj xyuas raws li cov tshuaj pleev ib ce.Cov cabling zoo zoo yog qhov muaj txiaj ntsig, tab sis kev tswj hwm yog tiag tiag txog airflow, nkag mus, thiab kev sib cais txhaum, tsis zoo li.
Kev tu vaj tu tsev rau qhov ntom ntom.High -density tsis yog "kom compact li sai tau." Yog tias tus kws tshaj lij tsis tuaj yeem taug qab thiab hloov qhov kev sib txuas, tus qauv tsim yuav raug nqi koj thaum ua haujlwm tiag.
Yuav cov khoom hauv kev sib cais.Cables, connectors, panels, transceivers, racks, thiab pathways tsim ib tug channel. Ib feem uas zoo li pheej yig ntawm nws tus kheej tuaj yeem npog tag nrho cov ntaub thaum nws ntsuas.
AI-Nyeem Cabling Readiness Checklist
Ua haujlwm los ntawm cov no ua ntej ntsuas GPUs. Txhua yam khoom muaj qhov ua tiav dhau los, tsis yog qhov tsis meej yog yog lossis tsis yog.
- Speed headroom:Cov ntsia hlau puas tuaj yeem txhawb nqa tsawg kawg ib qho kev dhia nrawm (piv txwv li 400G txog 800G) yam tsis muaj rov- rub, thiab puas suav fiber ntau rau ntawm optic txoj kab ntawm daim ntawv qhia (yim lossis kaum rau fibers)?
- Poob nyiaj txiag:Puas yog txhua qhov siab -channel ceev hauv nws qhov PAM4 ntxig- nyiaj poob, nrog rau kev suav suav thiab kev tshuaj xyuas qhov kawg?
- Qhov ntom ntom tiv thaiv kev pabcuam:Tus kws tshaj lij puas tuaj yeem ncav cuag, taug qab, thiab hloov qhov chaw nres nkoj yam tsis muaj kev cuam tshuam rau txoj kev tsheb ciav hlau nyob?
- Airflow:Puas yog txoj hauv kev ua kom rov qab tso pa tawm thiab qhov chaw kaw kom meej, thiab puas muaj zog thiab cov ntaub ntawv sib cais?
- Cov ntaub ntawv:Puas yog txhua qhov txuas tau kuaj thiab sau nrog nws cov qauv polarity, ntev, thiab poob, thiab sau npe kom phim raws li - cov duab kos?
- Scale:Puas yog nplooj - qaum, tsheb ciav hlau- optimized topology txuas mus rau lub pod tom ntej yam tsis muaj kev kho dua tshiab?
- Media haum:Puas yog txhua qhov txuas qhov nruab nrab tau xaiv los ntawm kev ncav cuag, nrawm, cuam tshuam thermal, thiab kev pabcuam, nrog DAC hauv - khib thiab OS2 thoob plaws chav?
Yog tias ob peb lo lus teb tsis yog, rov tsim kho lub cev txheej ua ntej AI workloads scale, tsis yog tom qab thawj nthuav.
FAQ
Q: Dab tsi cabling ua 400G thiab 800G AI networks xav tau?
A: Lawv khiav ntawm parallel optics tshaj MTP / MPO fiber ntau. 400G-DR4 txuas siv yim fibers, feem ntau yog MPO-12, thaum 800G-SR8 lossis 800G-DR8 siv kaum rau fibers, feem ntau MPO-16 nrog APC. OM4 los yog OM5 npog luv ncav cuag, OS2 npog ntev dua, thiab passive DAC tswj qhov luv tshaj plaws hauv-rack hops. Cov interfaces lawv tus kheej tau txhais hauv IEEE 802.3df.
Q: Puas yog ib qho -hom lossis multimode fiber ntau zoo dua rau AI cov chaw zov me nyuam?
A: Nws nyob ntawm qhov deb. Multimode OM4 lossis OM5 yog tus nqi - siv tau rau nplooj ntawv - qaum txuas nyob rau hauv kwv yees li 100 m, tab sis kev txhawb nqa kev ncua deb ntawm 800G. Tib -mode OS2 yog lub hauv paus zoo dua ib zaug txuas hla kab lossis chav tsev, lossis thaum koj xav tau 800G DR / FR ncav cuag thiab yav tom ntej 1.6T headroom. Ntau cov ntaub loj ua qauv ntawm OS2 vim li ntawd.
Q: Thaum twg AI cov ntaub ntawv chaw yuav tsum siv DAC, AOC, lossis optical transceivers?
A: Siv passive DAC rau kev sib txuas mus txog li peb meters hauv lossis nruab nrab ntawm cov racks uas nyob ib sab, qhov uas nws muab tus nqi qis tshaj, lub zog, thiab latency. Siv AOC rau kev txuas mus tas li los ntawm ob peb metres mus rau kwv yees li kaum meters. Siv pluggable transceivers nrog cov qauv fiber ntau thaum koj xav tau ncav cuag, rov siv dua, thiab muaj peev xwm los pab qhov txuas.
Q: Yuav ua li cas koj xam cov nyiaj poob ntawm cabling rau siab - txuas ceev?
A: Pib los ntawm kev nkag channel- tsis pub dhau tus qauv transceiver qhia (piv txwv li 800GBASE-SR8 lossis 800GBASE-DR8). Tshem tawm fiber ntau attenuation multiplied los ntawm qhov ntev, ntxiv rau qhov poob ntawm txhua tus khub sib txuas sib txuas, uas feem ntau yog ob peb feem kaum ntawm ib qho decibel, ntxiv rau cov splices, thiab khaws cov paj hauv cia. PAM4 pob nyiaj siv nruj dua li qub NRZ txuas, yog li kev sib txuas suav thiab qhov kawg huv si txiav txim siab ncaj qha seb lub channel hla.
Q: Yuav ua li cas cabling cuam tshuam qhov txias hauv siab - ceev AI racks?
A: Congested cable bundles cuam tshuam airflow, tsim rov qab -siab ntawm cov khoom siv, thiab ua rau recirculation thiab kub chaw, uas tseem ceeb ntawm GPU khib densities uas muaj peev xwm tshaj 100 kW. Txoj hauv kev siv nyiaj siv ua haujlwm, cais lub zog thiab cov ntaub ntawv, cov tswj xyuas kom zoo, thiab cov kev ua haujlwm uas ua kom cov pa tawm thiab ntim kom huv si tiv thaiv qhov tsim kom txias.
Q: Puas yog tooj liab tseem haum rau AI cov ntaub ntawv chaw?
A: Yog lawm, luv luv hauv - khib thiab nyob ib sab - khib kev sib txuas, qhov twg DAC yog qhov kev xaiv zoo. High- ceev thiab ntev khiav mus rau fiber ntau rau bandwidth, ncav cuag, thiab scalability.
Q: Vim li cas MTP / MPO connectors muaj nyob rau hauv AI cabling?
A: Lawv nqa yim mus rau nees nkaum-plaub fibers nyob rau hauv ib lub ferrule, uas yog raws nraim li qhov parallel optics xav tau, thiab lawv pab ua ntej -tawm trunks kom ceev, rov ua tau, siab - ceev installs.
Ntsiab Cai
AI workloads yog rov sau cov ntaub ntawv chaw cabling uas yuav tsum tau nyob ib ncig ntawm lub bandwidth siab dua, denser parallel fiber ntau, nruj tsis siv nyiaj, airflow-paub routing, thiab luv luv upgrade cycles. Lub cev txheej yuav tsis ua GPUs sai dua ntawm nws tus kheej, tab sis qhov tsis ncaj ncees lawm caps qhov kev ua tau zoo, kev ntseeg siab, thiab kev nce qib ntawm tag nrho ib puag ncig.
Lub hauv paus ntsiab lus tsim kev nyab xeeb tshaj plaws yog npaj cov nroj tsuag fiber ntau, txoj hauv kev muaj peev xwm, patching architecture, thiab cov qauv ntaub ntawv ua ntej GPU racks av, tsis yog tom qab thawj lub voj voog nthuav dav. Tsim kom muaj tsawg kawg yog ib qho kev dhia nrawm, xaiv cov xov xwm los ntawm lub luag haujlwm es tsis yog los ntawm tus cwj pwm, thiab kho qhov sib txuas kom huv, polarity, thiab airflow raws li thawj -chav kawm tsim kev txwv. Ua ntej xa los yog nthuav dav, tshuaj xyuas koj cov cabling tam sim no tiv thaiv daim ntawv teev npe saum toj no; rau cov qauv cabling thiab MTP / MPO Cheebtsam, tshawb xyuas pebfiber optic kev daws teeb meem.
