DAC Cable tau dhau los ua tus qauv xaiv rau kev kub ceevdata centerinterconnection, tshwj xeeb tshaj yog rau luv luv txuas ntawm servers, keyboards thiab cia. Hauv tsab xov xwm no, koj yuav nkag siab sai sai tias DAC Cable yog dab tsi, qhov sib txawv ntawm passive DAC, nquag DAC thiab AOC, thiab qhov kev kub ceev DAC cable piv nrog cov kev daws teeb meem ntawm optical transceiver li cas ntawm tus nqi, lub zog thiab kev ncua deb.
Koj tseem yuav pom tias Hengtong data center DAC cable cov khoom siv li cas npog 10G txog 400G daim ntawv thov xws li ToR, Kab laug sab-Nplooj thiab luv- mus txog DCI, thiab tau txais kev qhia ua tau zoo ntawm yuav ua li cas xaiv txoj cai DAC Cable hom thiab ntev rau koj tus kheej racks.
DAC Cable Hom - Passive, Active thiab AOC
Passive DAC Cable
A Passive DAC Cableyog qhov yooj yim tshaj plaws thiab tus nqi ntau tshaj - hom kev txuas ncaj qha cable. Nyob rau hauv lub rooj sib txoos, txoj kab kev kub ceev yog siv nrogshielded twinax tooj liabconductors, feem ntau nyob rau hauv24-30 AWG, thiab cov connectors muajtsis muaj active Cheebtsamxws li equalizers lossis tsav tsheb. Tus tswv tsev PHY ntawm qhov hloov lossis lub server ua haujlwm tag nrho cov teeb liab txias.
Cov ntsiab lus tseem ceeb rau passive DAC Cable:
Hom ntsuas:
- 30 AWGrau luv luv txuas (0.5-2 m)
- 28/26 AWGrau 3-5 m txuas
- 24 AWGrau kev thov 5-7 m txuas ntawm cov ntaub ntawv ntau dua
Nyob rau hauv cov ntaub ntawv chaw, passive DAC Cable yog zoo tagnrho rau:
- Server rau ToR hloovkev sib txuas hauv tib lub khib
- Kev sib txuas ntawm rackingqhov twg lub cev nyob deb li tsawg
- High -qhov chaw nyob qhov twgtxhua watt tseem ceebthiab luv luv passive txuas tuaj yeem txo cov khib nyiab - qib zog.
Rau cov laj thawj no, passive DAC Cable feem ntau yogthawj xaivthaum twg cov channel poob thiab nyiaj nyob deb tso cai rau nws.
Active DAC Cable
IbActive DAC Cablekev koom ua keteeb liab conditioning circuitryxws li linear equalizers los yog retimers nyob rau hauv lub connector plhaub ntawm ib los yog ob qho tag nrho. Lub tooj liab twinax cable nws tus kheej zoo ib yam li passive DAC, tab sis cov khoom siv txuas ntxiv siv tau thiab txhim kho cov npoo ntawm cov ntaub ntawv ntau dua (tshwj xeeb tshaj yog rau 25G, 50G thiab PAM4-raws li 100G / 400G kab).
Cov ntsiab lus tseem ceeb rau kev siv DAC Cable:
Kev siv zog:feem ntau nyob ib ncig ntawm0.5–1 Wib kawg, nyob ntawm cov ntaub ntawv tus nqi thiab kev siv
Hom ncav cuag:
Feem ntau5–10 mrau 25G / 100G txuas
Hauv cov xwm txheej zoo thiab cov ntaub ntawv qis dua, tuaj yeem ncav cuag 10 m
Cov txiaj ntsig kev ua haujlwm:
- Zoo dua qhov muag daim duab thiabsiab dua link marginntawm marginal channels
- Muaj peev xwm so kom txaus ntawm AWG thiab routing txoj kev piv rau passive DAC
Cov xwm txheej siv rau cov nquag DAC Cable hauv cov chaw zov me nyuam:
Rack-rau- khib kev sib txuasnyob rau hauv tib kab uas qhov kev ncua deb dhau passive DAC txwv
Nplooj-Spin linksnyob rau hauv cov kab compact qhov twg tooj liab tseem nyiam rau tus nqi lossis EMI vim li cas
Cov xwm txheej uas cov tais uas twb muaj lawm los yog txoj kev taug kev ua rau me ntsis ntev dua lossis ntau dua cov tooj liab.
Thaum koj xav tau ntau tshaj li qhov passive DAC Cable tab sis tseem xav khaws covtooj liab nqi kom zoo dua, ib qho active DAC Cable feem ntau yog qhov kev sib haum xeeb.
AOC – Active Optical DAC Cable Assemblies
Active Optical DAC Cable Assemblies(feem ntau hu ua AOC) coj lub tswvyim DAC thiab hloov cov tooj liab twinax nrogmultimode optical fiber ntauhauv kab. Txhua qhov kawg ntawm AOC suav nrog tag nrhohluav taws xob-rau- kho qhov muag thiab kho qhov muag- mus rau - hluav taws xob hloov pauvcav, tab sis los ntawm tus tswv xav nws coj zoo li tus qauv kev kub ceev pluggable interface.
Cov ntsiab lus tseem ceeb rau AOC DAC Cable sib dhos:
- Nruab nrab:Multimode fiber ntau (piv txwv li OM3 / OM4 / OM5)
- Hom ncav cuag: 30–100 mnyob rau hauv ib tug data center, nyob ntawm seb cov ntaub ntawv tus nqi thiab fiber ntau hom
- Kev siv zog:feem ntau nyob rau hauv0.5–1 Wntau qhov kawg, tseem qis dua ntau qhov kev daws teeb meem optical transceiver
Mechanical zoo:
- Ntausib duatshaj tooj liab DAC Cable hla tib qhov deb
- Me mekhoov vojvoogthiab kev tswj cov kab hluav taws xob yooj yim dua hauv cov tais nyiaj siv ua haujlwm lossis hauv qab txoj hauv kev
Hauv kev xyaum, AOC DAC Cable sib dhos yog zoo meej thaum:
Koj yuav tsum tau spanntev dua nyob rau hauv cov ntaub ntawv chaw, xws li ntawm kab lossis nruab nrab ntawm chav
Txoj kev cables yog complex, nrog ntau khoov thiab txwv qhov chaw
Koj xav tuav ibDAC-style "ib feem naj npawb, ib qhov txuas"mus kom ze tab sis nrog optical kev ua tau zoo.
Yuav Ua Li Cas Xaiv Txoj Cai DAC Cable Hom
Rau feem ntau cov haujlwm, koj tuaj yeem pib nrog qhov deb yooj yim - raws li txoj cai thiab tom qab ntawd ua kom zoo raws li topology, lub zog thiab kev txwv:
| Txuas qhov nrug (tus qauv) | Nruab nrab | Hom kev pom zoo | Hom Scenario |
|---|---|---|---|
| 0.5–3 m | Tooj twinax | Passive DAC Cable | Server rau ToR hauv tib lub khib |
| 3–7 m | Tooj twinax | Passive lossis Active DAC Cable | Server/ToR rau cov khib nyiab uas nyob ib sab |
| 5–10 m | Tooj twinax | Active DAC Cable | Rack-rau- khib hauv tib kab |
| 10–30 m | Tooj los yog fiber ntau | Active DAC Cable / AOC DAC Cable | Nplooj-Spin nyob rau hauv cov ntaub ntawv compact |
| 30–100 m | Multimode fiber ntau | AOC DAC Cable Assemblies | Kab - mus rau - kab, chav - mus rau - chav, luv - mus txog DCI |
Ib txoj hauv kev xaiv cov tswv yim:
Pib nrog passive DAC Cableyog tias qhov kev ncua deb yog luv thiab cov cuab yeej txhawb nqa nws - qhov no txo qis tus nqi thiab lub zog.
Txav mus rauActive DAC Cablethaum qhov ncav cuag lossis channel poob me ntsis dhau qhov muaj peev xwm ua tau tab sis koj tseem xav tau tooj liab.
XaivAOC DAC Cable sib dhosthaum txoj kev ntev, complex, los yog thaum hnyav thiab khoov vojvoog ua qhov tseem ceeb.
Hengtong tuaj yeem pab ntsuam xyuas kojtxuas nyiaj txiag, routing thiab topologykom pom zoo ua ke ntawm passive DAC Cable, nquag DAC Cable thiab AOC DAC Cable rau txhua feem ntawm koj cov ntaub ntawv chaw network.
DAC Cable vs Optical Transceiver - Qhov twg Zoo dua rau luv luv -Reach Links?
Mus txog thiab Topology - Qhov twg DAC Cable haum zoo tshaj plaws
Los ntawm ib qho kev xav ntawm topology,DAC Cableyog ua kom zoo rau luv luv - ncav cuag, siab - qhov sib txuas ceev hauv ib lub tsev cov ntaub ntawv:
DAC Cable ncav cuag
Copper DAC Cable: feem ntaumus txog 5-7 m(passive) thiab hais txog10–15 m(active)
AOC DAC Cable sib dhos: feem ntau30–100 mnyob rau hauv lub data center
Hom DAC Cable topologies
- Kev nkag mus rau ToR server:server ⇔ ToR hloov hauv tib lub khib
- racks nyob ib sab:ToR ⇔ ToR lossis ToR ⇔ kev sib sau ua ke hauv ob peb lub racks
- Nruab nrab - ntawm - Kab / Xaus - ntawm - Kab:Nplooj ⇔ Tus txha nraub qaum thaum kab sib txuas
Los ntawm qhov sib txawv,optical transceivers + fiber ntau thaj qaumyog tsim los rauntev dua - ncav cuag thiab ntau haiv neegtopologies:
Standardized nruglos ntawm100 m tshaj MMFtxhua txoj kev mus10-40 km lossis ntau dua SMF, nyob ntawm seb hom transceiver
Hom rauinter-chav, inter-lub tsev lossis metro- nplaikev sib txuas, qhov twg tooj liab DAC Cable tsis ua tau lawm
Hauv lwm lo lus, yog tias koj qhov txuas tseem nyobsab hauv lossis nruab nrab ntawm racks hauv tib kab, DAC Cable feem ntau yog lub ntuj haum; yog nws yuav tsum hlachav, pem teb los yog qhov chaw, optical transceivers yuav tsum tau.
Kev Siv Hluav Taws Xob thiab Thermal Design
Ib qho ntawm qhov sib txawv loj tshaj ntawm DAC Cable thiab optical transceivers yogzog rau qhov chaw nres nkoj, uas cuam tshuam ncaj qha rau khib- theem thermal tsim:
DAC Cable fais fab profile
- Passive DAC Cable:yuav luag xoom ntxiv zog, feem ntau<0.15 Wib kawg
- Active DAC Cable / AOC:ib ncig0.5–1 Wib kawg, nyob ntawm cov ntaub ntawv tus nqi
Optical transceiver fais fab profile
Ntau 10G / 25G / 100G pluggable modules ua haujlwm hauv1–3 Wntau
Siab- kawg lossis ntev - ncav cuag 100G / 400G modules tuaj yeem ncav cuag4–5 Wrau qhov chaw nres nkoj
Hauv 48-chaw nres nkoj ToR hloov, hloov 48 optical transceivers nrog 48 kev kub ceev DAC Cable txuas tuaj yeem txuag tau.kaum watts. Rau qhov ntom ntom ntom - Nplooj ntaub lossis cov pawg loj -, qhov no txhais ua:
- qiscua txias xav taurau khib
- Ntaulub taub haurau yav tom ntej kev hloov kho ceev
- Zoo tag nrhoPUAnyob rau theem chaw
Qhov no yog vim li cas ntau tus neeg teb xov tooj nyiam DAC Cable txhua qhov chaw uas tso cai, tom qab ntawd khaws cov khoom siv kho qhov muag rau txoj hauv kev ntev.
Tus nqi & kev ua haujlwm yooj yim
Tshaj li ncav cuag thiab lub zog, DAC Cable muab cov txiaj ntsig zoo heev hauvCAPEX thiab OPEX:
Kho vajtse nqi kom zoo dua
Ib qho DAC Cable hloovob leegoptical transceiver thiab thaj qaum
Tshwj xeeb tshaj yog ntawm 10G / 25G / 100G, DAC Cable feem ntaupheej yig dua ib qhov txuastshaj li "transceiver + fiber"
Tsawg SKUs, cov lus nug yooj yim dua
Txhua qhov txuas yog ib feem ntawm tus lej (piv txwv li, "100G QSFP28 DAC Cable, 3 m")
Tsis tas yuav phim hom transceiver, hom fiber ntau thiab txuas polish hla ntau tus neeg muag khoom
Tsawg qhov kev pheej hmoo ntawm mis-patching
Kev sib dhos ruaj ruaj txhais tau hais tias koj tsis tuaj yeem sib xyaw qhov tsis ncaj ncees lawm transceiver thiab cable hom
Ntev yog tswj los ntawm ib hnub, uas pab nrogkev tswj kab mob huvthiab kwv yees ua tau zoo
Rau luv luv- ncav cuag cov ntaub ntawv chaw sib cuam tshuam, cov xwm txheej no ntxiv sai sai hla ntau txhiab qhov chaw nres nkoj. Koj txuag raupib nqis peev, txospare stock complexity, thiab ua rau kev tshaj tawm thiab kev daws teeb meem yooj yim dua rau ntawm - pab pawg chaw.
Rau luv luv - mus txog qhov chaw nruab nrab cov ntaub ntawv sib txuas, DAC Cable feem ntau yog tus nqi ntau tshaj - kev xaiv zoo, thaum optical transceivers tseem yog cov cuab yeej tsim nyog rau qhov ntev - nrug thiab hloov tau yooj yim sib txuas.
Yuav ua li cas DAC Cable Powers High Speed Data Center Interconnection
DAC Cable ua lub luag haujlwm tseem ceeb hauv kev ua kom zoo siab - nrawm, luv- kev sib txuas ntawm qhov deb hauv cov ntaub ntawv chaw, muab cov txiaj ntsig zoo thiab tus nqi- muaj txiaj ntsig zoo rau ntau yam xwm txheej sib cuam tshuam. Hauv qab no yog thawj daim ntawv thov uas DAC Cable tsav kev ua haujlwm thiab ua kom yooj yim cov ntaub ntawv chaw tsim kho.
Sab saum toj - ntawm -Rack DAC Cable Connections
Hauv ntau cov chaw zov me nyuam,Sab saum toj - ntawm -Rack (ToR)keyboards ua lub hauv paus hub rau txuas ntau servers nyob rau hauv ib lub khib. Rau luv luv -ntau yam kev sib txuas ntawm servers thiab ToR hloov,DAC Cablemuab kev daws teeb meem zoo.
Server ⇔ ToR Hloov: Rau kev ncua deb ntawm1–3 m, Passive DAC Cabletau pom zoo heev vim nws siv hluav taws xob tsawg thiab tus nqi -kev ua tau zoo.
Passive DAC Cable pab ua tiav:
Kev siv hluav taws xob tsawg: Feem ntau<0.15 W per end
Kev xa tawm sai: Tsis xav tau fiber ntau optic transceivers, tsuas yog ntsaws thiab ua si
Compact thiab txhim khu kev qha txuasnrog qis latency
Qhov no configuration yog muaj nyob rau hauvntom khib ib puag ncigqhov chaw thiab lub zog efficiency yog qhov tseem ceeb.
Kab laug sab-Txoj kev sib txuas nrog Kev Kub Ceev DAC Cable
Raws li data center networks scale,Ntiv-Nploojarchitecture yog dav siv rau siab -kev ua tau zoo sib txuas. Siab -ceevDAC Cabletxhawb kev sib txuas lus zoo ntawmNplooj thiab txha nraub qaum hloov, kom ntseeg tau tias qis -latency, siab -bandwidth txuas thoob plaws lub network ntaub.
Nplooj ⇔ Pob txha: Feem ntau hauv cov3–30 mntau yam,40G / 100G / 200G / 400G DAC Cablelos yogAOCtuaj yeem siv nyob ntawm qhov xav tau bandwidth thiab nrug.
40G / 100G DAC Cable: Zoo tagnrho rau siab -kev ua tau zoo sib cuam tshuam nyob rau hauv tib kab lossis hla cov kab uas nyob ib sab hauv ib qho kev sib cog lus.
200G / 400G DAC Cable: Haum rau siab - muaj peev xwm txuas ntawm qhov loj dua, siab dua - qhov hloov ceev.
Kev siv ntawmDAC Cablentawm no muaj:
High ceevnrog tsawg zog siv
Tus nqi -kev ua tau zoopiv rau fiber ntau-raws li lwm txoj kev
Simplified cable tswj, nrog tsawg connectors thiab cov khoom
Luv -Txog DCI Siv 400G DAC Cable thiab AOC
Hauv cov chaw khaws ntaub ntawv niaj hnub,luv - mus txog DCI (Data Center Interconnection)nruab nrab ntawm cov chav sib txawv lossis thoob plaws lub tsev kawm ntawv feem ntau tsim nyog. Siab -ceev400G DAC CablethiabAOCkev daws teeb meem ua kom muaj kev sib txuas lus tsis sib haum xeeb ntawmcov ntaub ntawv chaw tsev lossis cov plag tsevnyob rau hauv tib lub tsev kawm ntawv.
100G / 400G DAC Cable + AOC: Rau kev sib txuas ntawm cov chav sib txawv, cov plag tsev, lossis cov tsev nyob hauv tib lub chaw cov ntaub ntawv, cov cables no tuaj yeem npog qhov deb ntawm30m mus 100m, muab -latency qis, siab - muaj peev xwm txuas.
Qhov kev teeb tsa no feem ntau siv rau:
Data center-rau-data center kev sib txuas lusnyob rau hauv ib lub tsev kawm ntawv lossis thoob plaws qhov chaw sib txuas
Ua kom tausiab dua bandwidth interconnectstsis muaj tus nqi thiab qhov nyuaj ntawm qhov ntev -ntau cov kev daws teeb meem fiber ntau
Los ntawm kev sivDAC Cable thiab AOC, cov chaw zov me nyuam tuaj yeem ua kom zoo rau ob qho tib si kev ua haujlwm siab thiab hloov tau yooj yim, tswj xyuasseamless txuas hla luv -ntau DCI.
Hauv kev xaus,DAC Cableyog ntau yam kev daws teeb meem rauluv- mus cuag cov ntaub ntawv chaw sib cuam tshuam, muab kev ntseeg siab, ua tau zoo, thiab tus nqi -txoj kev txuas zoo rau ob qho tib siserver-rau- hloovthiabsiab -kev ua tau zoo hloov pauv kev sib txuasnyob rau hauv cov ntaub ntawv chaw sib txawv topologies.
DAC Cable FAQ
Nov yog qee cov lus nug uas nquag nug txogDAC Cablethiab nws cov ntawv thov hauv cov chaw khaws ntaub ntawv:
DAC Cable yog dab tsi thiab thaum twg kuv yuav tsum siv nws hauv kuv qhov chaw khaws ntaub ntawv?
A DAC Cable(Direct Attach Cable) yog ib qho ua ntej -tawm, Hoobkas- sib txuas cable uas txuas cov servers, keyboards, thiab cov khoom siv khaws cia nrog cov khoom txuas ruaj khov, pluggable connectors. Nws yog feem ntau siv rauluv- ncav cuag kev sib txuas(1-100m), xws liserver-rau- hloovlos yoghloov - mus - hloovkev sib txuas hauv racks lossis nruab nrab ntawm cov racks uas nyob ib sab. DAC cables yog qhov zoo tagnrho rau siab - ceev, qis- zog, thiab tus nqi- kev sib txuas lus zoo.
Qhov ntev tshaj plaws ntawm tooj liab DAC Cable thiab AOC yog dab tsi?
Tooj liab DAC Cable: Qhov siab tshaj plaws yog feem ntau5-15 mnyob ntawm cov ntaub ntawv tus nqi thiab seb lub cable puas yog passive lossis nquag.
AOC (Active Optical Cable): AOC cables, uas siv fiber ntau optical, feem ntau tuaj yeem ncav cuag30-100 m, muab qhov ntev dua - lwm txoj kev nyob deb thaum tooj liab ua tsis tau.
Dab tsi yog qhov txawv ntawm passive DAC Cable thiab nquag DAC Cable?
Passive DAC Cable: Tsis muaj cov khoom siv ua haujlwm, ua kom muaj zog ntau dua -nqi thiab nqi- zoo. Feem ntau siv rau luv luv nrug (txog7m ua).
Active DAC Cable: Muaj cov teeb liab txias circuits (xws li cov sib npaug) uas txhawb cov teeb liab, tso cai rau ntev mus txog (txog10-15 m) thiab kev ua tau zoo dua ntawm kev nrawm dua (piv txwv li, 100G thiab tshaj).
Hengtong DAC Cable puas tuaj yeem hloov kho qhov muag transceivers rau luv - mus txog qhov txuas?
Yog lawm,Hengtong DAC Cabletuaj yeem hloov kho qhov muag transceivers rauluv- mus txog kev sib txuas(feem ntaumus txog 100 meters) nyob rau hauv cov ntaub ntawv chaw. DAC cables yog qhov zoo tshaj plaws, tus nqi - kev daws teeb meem zoo thaum koj xav tau siab - kev sib txuas ceev ntawm cov khoom siv nyob rau hauv tib lub khib, racks nyob ib sab, lossis luv luv - nrug topologies.
Puas yog Hengtong DAC Cables tau tshaj kuv cov keyboards thiab servers uas twb muaj lawm?
HengtongDAC Cablesyogsiab tshajnrogfeem ntau loj hloov thiab server manufacturers. Lawv ua raws li cov qauv kev lag luam xws liSFP +, QSFP +, QSFP28, thiabQSFP-DD, kom ntseeg tau seamless interoperability hla ntau yam khoom siv network.
Yuav ua li cas xaiv txoj cai DAC Cable ntev thiab ntsuas (AWG)?
Thaum xaiv ibDAC Cable, xav txog cov hauv qab no:
Ntev: Sib piv cov kab ntev mus rau lub cev qhov deb ntawm cov khoom siv (server-rau-hloov, khib-rau- khib, thiab lwm yam). Yam ntau yam:1–3mrau hauv tib lub khib,3–10mrau nruab nrab ntawm cov racks uas nyob ib sab,10–30mrau kev sib txuas ntev dua.
AWG (AWG): Rau kev ncua deb lossis siab dua cov ntaub ntawv, xaiv cov kab tuab dua (low AWG) rau txo cov teeb liab attenuation. Rau luv-ntau sib txuas,28 AWG or 30 AWGtxaus.
Puas yog Hengtong muab kev pabcuam OEM / ODM DAC Cable?
Yog, Hengtong muajKev pabcuam OEM / ODMrauDAC Cables. Peb tuaj yeem customizentev, ntsuas (AWG), connectors, thiab txawm labelingkom tau raws li koj cov kev xav tau tshwj xeeb. Txawm hais tias rau cov haujlwm hauv cov ntaub ntawv lossis loj - kev xa tawm loj, peb tuaj yeem muab cov kev daws teeb meem uas haum rau koj cov kev xav tau.