Yog tias koj tab tom npaj siab -kev sib txuas ceev hauv cov chaw khaws ntaub ntawv lossis chaw lag luam hauv tsev kawm ntawv, OM4 fiber ntau tsim nyog tau txais kev txiav txim siab loj. Nws yog laser - optimized 50/125 µm multimode fiber ntau ua rau 10G, 40G, thiab 100G Ethernet hla qhov deb - feem ntau hauv qab 400 meters. Piv rau OM3, nws muaj ntau lub taub hau ntawm bandwidth thiab kev txhawb nqa ntev dua. Piv rau ib hom - hom, nws ua rau koj nyob rau hauv multimode ecosystem qhov twg optics tuaj yeem raug nqi tsawg dua ntawm kev lag luam.
Tab sis OM4 tsis yog txoj cai cable rau txhua qhov project. Qhov kev ncua deb koj tuaj yeem ua tiav yog nyob ntawm qhov transceiver, tag nrho qhov txuas tsis tau, thiab cov khoom txuas txuas - tsis yog cov qib fiber ntau luam tawm ntawm lub tsho. Cov lus qhia no suav nrog cov kev qhia tshwj xeeb uas tseem ceeb, qhov kev ncua deb ntawm daim ntawv thov, yuav ua li cas OM4 piv rau OM3, OM5, thiab ib hom -, thiab yuav txiav txim siab seb nws haum koj li cas.
OM4 Fiber ntau yog dab tsi? Core Specifications
OM4 yog laser - optimized multimode fiber ntau nrog 50 µm core thiab 125 µm cladding. Nws yog standardized los ntawmTIA(Kev Lag Luam Kev Lag Luam Kev Lag Luam) tom qab OM3 los txhawb qhov txuas txuas ntev ntawm cov ntaub ntawv siab dua luv luv - ncav cuag Ethernet. Cov ntsiab lus tseem ceeb uas cais OM4 los ntawm ua ntejmultimode fiber ntau homyog nws cov kev ua tau zoo modal bandwidth (EMB): 4700 MHz ·km ntawm 850 nm, piv rau 2000 MHz ·km rau OM3.
Attenuation feem ntau nyob ntawm 3.0 dB / km ntawm 850 nm thiab 1.5 dB / km ntawm 1300 nm, raws li tus qauv multimode poob cov duab. Cov lej no txhais cov kev txwv sab saud ntawm qhov deb npaum li cas OM4 tuaj yeem nqa lub teeb liab ua ntej lub zog kho qhov muag poob qis dua qhov kev lees paub.
Hauv kev xa tawm, OM4 lub hom phiaj siab - ntom ntom, qis - latency ib puag ncig: hloov- mus rau - hloov uplinks hauv cov ntaub ntawv, neeg rau zaub mov- mus rau - nplooj kev sib txuas hauv qaum- nplooj topology, thiab kev sib txuas sib txuas ntau dua qhov twg 10G. Yog tias koj khiav nyob rau hauv ob peb puas meters thiab koj xav taumultimode es tsis yog ib hom - hom, OM4 feem ntau yog lub hauv paus kev xaiv rau kev tsim tshiab.
OM4 Fiber nrug txwv rau 10G, 40G, thiab 100G
Qhov deb yog thawj lo lus nug uas feem ntau network engineers nug, thiab nws yuav tsum muaj lus teb ceev faj dua li ib tus lej. Raws li daim ntawv thov kev taw qhia luam tawm los ntawmFluke Networks, OM4 txhawb nqa qhov txuas siab tshaj plaws hauv qab no raws li tus qauv IEEE 802.3 daim ntawv thov qauv:
| Daim ntawv thov | OM3 Max nrug | OM4 Max nrug | Hom Optics |
|---|---|---|---|
| 10GBASE-SR | 300 m | 400 m | Duplex LC |
| 40GBASE-SR4 | 100 m | 150 m | MPO 8-fiber parallel |
| 100GBASE-SR10 | 100 m | 150 m | MPO 20-fiber parallel |
| 100GBASE-SR4 | 70 m | 100 m | MPO 8-fiber parallel |
| 100G BiDi (Duplex LC) | 70 m | 100 m | Duplex LC |
TIA's Fiber Optics Tech Consortium sau tseg tias OM4 txhawb nqa 10 Gb / s mus rau 400 meters hauv tus qauv, thiab mus txog 550 meters hauv kev txuas ntxiv engineering- txoj cai scenarios. Daim duab 550-meter no qee zaum raug suav nrog hauv kev lag luam, tab sis nws poob sab nraum tus qauv IEEE daim ntawv thov thiab nyob ntawm cov xwm txheej tshwj xeeb.
Ib qho kev xav tsis zoo yog tias "OM4 txhawb nqa 100G txog 150 m" thoob plaws lub rooj tsavxwm. Qhov ntawd tuav rau 100GBASE-SR10 nrog 20-fiber MPO parallel optics. Tab sis yog tias koj siv a100G Duplex LC BiDi module, qhov kev txhawb nqa ncav cuag ntawm OM4 poob mus rau ib ncig ntawm 100 meters raws li cov ntaub ntawv tam sim no Cisco transceiver. Lub transceiver txiav txim qhov deb - fiber ntau muab qhov nruab nrab.
Yog vim li cas poob nyiaj txiag tseem ceeb tshaj li qhov nyob deb
Txawm hais tias fiber ntau -kev sib txuas transceiver txhawb nqa ib qho kev ncua deb ntawm daim ntawv, qhov ua tiav qhov tseeb yog nyob ntawm tag nrho qhov txuas tsis tau. Txhua tus khub txuas, txhua qhov sib txuas, txhua lub vaj huam sib luag ntxiv ntxiv qhov poob. Ib qho 40G txuas nrog rau 6 tus txuas txuas thiab ob tus ntoo khaub lig- txuas siv tau siv nyiaj poob ntau dua li qhov taw qhia ncaj qha - mus rau - taw tes khiav. Fluke Networks hais txog tias ob qho tib si nyob deb thiab poob yuav tsum tau lees paub ua ke thaum tsim nyog OM4 txuas rau daim ntawv thov.
Rau kev npaj xa mus, pib nrog lub transceiver qhov kev siv nyiaj poob qis, rho tawm qhov xav tau txuas thiab splice poob, thiab paub meej tias qhov seem seem npog lub cev nyob deb. Yog tias nws tsis yog, ua kom luv luv los yog txo cov kev sib txuas ntawm cov khoom sib txuas yog txhim khu kev qha ntau dua li kev cia siab tias cov fiber ntau yuav "tsuas yog ua haujlwm."
OM3 vs OM4: Thaum Ntxiv Bandwidth Matters
OM3 thiab OM4 yog ob qho tib si 50/125 µm laser- fibers optimized nrog tib lub cev zoo li - aqua tsho, tib connectors, tib lub installation xyaum. Qhov txawv yog nyob rau hauv: OM4 lub nruj dua refractive index profile tsim EMB ntau dua (4700 vs 2000 MHz ·km), uas txhais tau tias ntev kev txhawb nqa nyob rau hauv txhua daim ntawv thov loj. Yog xav paub ntxiv sib piv, saib pebOM3 vs OM4 phau ntawv qhia.
Hauv kev xyaum, cov npoo ntxiv tseem ceeb thaum koj cov kev sib txuas mus txog 200-400 meters rau 10G, lossis thaum koj xav tau 40G / 100G tshaj 100 meters. Yog tias feem ntau ntawm koj txoj kev khiav qis dua 50 meters - feem ntau nyob rau sab saum toj - ntawm - khib xa tawm - OM3 yuav txaus, thiab tus nqi sib txawv tuaj yeem muaj txiaj ntsig ntawm qhov ntsuas. Tab sis rau cov txheej txheem tshiab cabling uas yav tom ntej - pov thawj ua pov thawj qhov me me ntawm - meter tus nqi, OM4 tau dhau los ua lub hauv paus multimode hauv feem ntau Tier III thiab Tier IV data center tsim.
OM4 vs OM5: Puas yog Wideband Multimode Tsim Nyog?
OM5 tsis yog ib qho yooj yim hloov kho dua OM4. Nws yog qhov dav dav multimode fiber ntau tsim los nqa ntau lub wavelengths ntawm kwv yees li 850 nm thiab 953 nm, ua kom luv wavelength division multiplexing (SWDM) dhau kev sib txuas duplex. TIA tau qhia OM5 tshwj xeeb los txhawb kev ua haujlwm multiwavelength multimode.
Hauv cov qauv ib zaug -wavelength daim ntawv thov (10GBASE-SR, 40GBASE-SR4), OM5 ua tau zoo ib yam rau OM4 - tib qhov deb, tib lub bandwidth ntawm 850 nm. Qhov txawv tsuas yog tshwm sim thaum koj siv SWDM transceivers los thawb 40G lossis 100G tshaj li ob lub fibers xwb tsis yog yim lossis nees nkaum. Qhov ntawd tseem ceeb thaum koj xav nce bandwidth yam tsis muaj rov-kab kab los ntawm duplex mus rau qhov sib txuas optics.
Cov lus nug uas siv tau yog seb koj daim phiaj xwm puas muaj SWDM. Yog tias koj txoj kev npaj kho qhov muag yog cov pa sib npaug 40G / 100G dhauKev sib txuas ntawm MPO / MTP, OM4 ua txhua yam koj xav tau ntawm tus nqi qis thiab muaj ntau dua. Yog tias koj tshwj xeeb cia siab tias SWDM duplex scaling lossis xav khaws cov kev xaiv ntawd rau lub neej yav tom ntej cabling, OM5 tuaj yeem ua pov thawj tus nqi.
OM4 vs Single-Mode Fiber: nrug thiab Ntev-Lub Sij Hawm Yooj Yim
Kev xaiv ntawm OM4 thiabtib - hom fiber ntauyog cov lus nug nyob deb thiab lifecycle. Tib-hom OS2 fiber txhawb nqa 10G txog 10 km (10GBASE-LR) thiab nqa 100G, 400G, thiab dhau ntawm lub tsev kawm ntawv thiab metro kev deb uas multimode tsis tuaj yeem ze. TIA sau tseg tias passive optical LAN architectures feem ntau siv tib hom - vim nws txhawb kev txuas mus txog 20 km hauv cov qauv tsim.
Qhov kev sib pauv yog tus nqi luv luv. Tib -hom transceivers muaj keeb kwm raug nqi ntau dua li lawv cov VCSEL-raws li qhov sib npaug ntawm ntau hom, txawm hais tias qhov sib txawv ntawd tau nqaim heev hauv xyoo tas los no. Rau kev khiav qis dua 100-150 meters hauv qhov chaw cov ntaub ntawv, OM4 nrog 850 nm VCSEL optics feem ntau tseem pheej yig dua ib qhov txuas. Tshaj li 300–400 meters, los yog rau ib qho kev sib tshuam- lub tsev khiav, ib leeg- hom yog yuav luag txhua lo lus teb yog tsis hais tus nqi transceiver.
Kev sib piv ceev: OM3, OM4, OM5, thiab OS2
| Parameter | OM 3 | OM 4 | OM 5 | OS2 (Single-Mode) |
|---|---|---|---|---|
| Core / Cladding | 50/125 µm | 50/125 µm | 50/125 µm | 9/125 µm |
| EMB ntawm 850nm | 2000 MHz · km | 4700 MHz · km | 4700 MHz · km | N/A |
| Attenuation ntawm 850nm | 3.0 dB/km | 3.0 dB/km | 3.0 dB/km | N/A |
| Attenuation ntawm 1310 nm | 1.5 dB/km | 1.5 dB/km | 1.5 dB/km | 0.4 dB/km |
| SWDM Kev them nyiaj yug | Tsis muaj | Tsis muaj | Yog (850–953 nm) | N/A |
| 10GBASE-SR nrug | 300 m | 400 m | 400 m | 10 km (LR) |
| 40G nrug | 100 m (SR4) | 150 m (SR4) | 150 m (SR4) | 10km (LR4) |
| Jacket Xim | Aqua | Aqua / Erika Violet | Txiv qaub ntsuab | Daj |
| Zoo tshaj rau | Kev khiav luv luv, tus nqi -sensitive | Data Center qaum, 10G-100G | SWDM yav tom ntej - pov thawj | Campus, long-haul, POL |
Qhov zoo tshaj plaws siv Case rau OM4 Fiber
OM4 ua tau zoo tshaj plaws nyob rau hauv ib puag ncig uas khiav qis dua 400 meters thiab siab - qhov ceev 10G / 40G / 100G kev sib txuas yog tus qauv. Cov kev xa tawm ib txwm muaj xws li:
- Cov ntaub ntawv chaw nraub qaum thiab txha nraub qaum- nplooj ntawv sib txuas.Hloov- mus rau- hloov uplinks hauv ib chav tsev ntaub ntawv yog cov ntaub ntawv siv OM4. Kev khiav yog feem ntau 50-300 meters, bandwidth xav tau siab, thiab qhov sib txuas ceev pom zoo rau kev lag luam multimode optics.High -Density data center cablingtso siab rau OM4 hauv cov xwm txheej no.
- Server thiab storage interconnects.Sab saum toj - ntawm - khib kom kawg - ntawm - kab kev sib txuas, SAN ntaub txuas, thiab cov chaw khaws cia ntawm pawg nquag siv OM4 nrogLC Duplex connectorsrau 10G lossis 25G, thiabMPO connectorsrau 40G / 100G parallel optics.
- Enterprise tsim lub nraub qaum.Nyob rau hauv ib lub tsev, OM4 tuaj yeem ua lub hauv paus fiber ntau ntawm cov chav sib tham, tshwj xeeb tshaj yog thaum lub tsev hneev taw khiav qis dua 300 meters.
Thaum OM4 Tsis yog Kev Xaiv Zoo
OM4 ncav cuag nws cov kev txwv sai sai hauv ob peb yam xwm txheej. Inter- tsev kawm ntawv txuas ntxiv 400 meters yuav tsum tau ib hom -. Passive optical LAN deployments uas centralize switching xav tau ib qho -hom ncav cuag. Thiab yog tias koj daim phiaj xwm phiaj xwm phiaj xwm 400G lossis 800G nyob rau lub sijhawm ze, ib qho - hom muaj txoj kev tsiv teb tsaws chaw deb dua li cov qib multimode.
Ib cheeb tsam grey muaj nyob ib ncig ntawm 200-400 meter khiav hauv cov tsev kawm ntawv qub. OM4 tuaj yeem tsim kho qhov kev ncua deb ntawm 10G, tab sis cov khoom sib txuas- hnyav txoj hauv kev nrog ntau lub thaj vaj huam sib luag tuaj yeem siv nyiaj poob ua ntej qhov ntev fiber ntau. Nyob rau hauv cov ntaub ntawv no, khiav ib zaug - hom los ntawm qhov pib zam lub neej yav tom ntej re- rub.
OM4 Cable thiab Connector Hom
Hom OM4 feem ntau rau cov khoom siv sib txuas yog qhovDuplex LC thaj qaum. LC tseem yog qhov tseem ceeb me me -form-factor connector rau 10G thiab 25G SFP/SFP+ transceivers, thiab nws kuj ua hauj lwm rau 100G BiDi modules uas siv ib tug duplex interface. Rau siab -dense patching,siab -cov kev daws teeb meem LCntim ntau qhov chaw nres nkoj rau ib chav tsev khib.
Rau 40G thiab 100G parallel optics,MPO / MTP thaj cordsyog standard. A 40GBASE-SR4 txuas siv 8 fibers (4 xa tawm, 4 txais) dhau 12-fiber MPO connector, thaum 100GBASE-SR10 siv 20 fibers. To taub qhov txawv ntawmLC thiab MPO / MTP interfacesyog qhov tseem ceeb ua ntej kev yuav khoom cables - kev xaiv connector yuav tsum ua raws li cov transceiver architecture, tsis yog lwm txoj hauv kev.
Breakout cables - xws liMPO-rau-LC fanout assemblies- txuas qhov sib txawv thaum ib sab ntawm qhov txuas siv qhov sib txuas ua ke thiab lwm qhov siv duplex. Cov no muaj ntau nyob rau hauv cov txheej txheem cabling tsim qhov twg lub pob tw cable khiav MPO los ntawm thaj vaj huam sib luag thiab tawg mus rau ib tus neeg sib txuas LC ntawm qhov hloov.
Jacket ratings (OFNR, OFNP, LSZH) yog txiav txim los ntawm lub tsev ib puag ncig thiab lub zos hluav taws code, tsis yog los ntawm fiber ntau. Xaiv cov qib fiber ntau rau bandwidth thiab nrug; xaiv lub tsho rau kev ua raws cai thiabinstallation ib puag ncig.
Kev Txhim Kho Qhov Zoo Tshaj Plaws thiab Kev Ua Tsis Zoo
Ib qhov dej - tshwj xeeb OM4 txuas tseem tuaj yeem ua tsis tau yog tias kev teeb tsa zoo tsis zoo - thiab cov nyiaj poob qis dua ntawm 40G thiab 100G ua rau qhov kev zam txim tsawg dua li 1G lossis 10G puas tau.
Khoov vojvoog.TIA cov txheej txheem cabling qhia txog qhov tsawg kawg ntawm lub vojvoog khoov ntawm 10 npaug ntawm cov kab hluav taws xob sab nraud nyob rau hauv qhov tsis muaj - thauj khoom, thiab 15 zaug hauv qab tensile load thaum rub. Ua txhaum lub vojvoog khoov ua rau micro- dabtsi yog khoov poob uas tej zaum yuav tsis tshwm sim hauv qhov kev sim txuas ntxiv yooj yim tab sis yuav tshwm sim raws li qhov nce siab qhov poob hauv OTDR lossis lub zog- ntsuas ntsuas.
Kev huv huv ntawm Connector.Xaus-kev sib kis ntawm lub ntsej muag yog ib qho ua rau muaj kev poob siab hauv ntau hom kev sib txuas. Ib qho hmoov av ntawm ib qho LC ferrule tuaj yeem ntxiv 1 dB lossis ntau dua ntawm qhov poob qis - txaus los thawb qhov txuas 100G tawm ntawm pob nyiaj ntawm kev khiav uas yuav tsum ua haujlwm yooj yim. Ib txwm tshuaj xyuas thiab ntxuav ua ntej mating, yam tsis muaj kev zam.
Kev tswj hwm polarity.Parallel optics tshaj MPO connectors yuav tsum muaj tseeb polarity mapping. Txoj kev polarity tsis sib haum (Txoj Kev A/B/C per TIA-568) ntawm cov kab hluav taws xob hauv lub cev thiab cov cassettes yuav ua rau tsis muaj -kev sib txuas ua haujlwm. Txheeb xyuas cov txheej txheem polarity ua ntej yuav MPO cov rooj sib txoos. Yog xav paub ntxiv txog tus qauv connector kawg-ntsej muag, saib peb phau ntawv qhia rauPC, UPC, thiab APC polish hom.
Qhov yuam kev uas pheej tshwm sim
Tom qab ua haujlwm los ntawm kev tshuaj xyuas OM4 txaus, qee cov qauv rov tshwm sim. Engineers xav tias txhua 100G transceiver ncav cuag 150 meters ntawm OM4 - nws tsis, raws li peb tau hais saum toj no. Pab pawg xaiv MPO lub cev cables ua ntej lees paub hom transceiver, tom qab ntawd pom tias lawv xav tau cov fiber ntau suav lossis polarity. Cov ntawv thov los ntawm cov ntaub ntawv qauv tau sib xyaw nrog cov neeg muag khoom- cov ntawv qhia tshwj xeeb ntawm cov ntaub ntawv, ua rau muaj qhov tsis sib haum xeeb ntawm qhov kev cia siab. Thiab qee zaus, ib qhov project qhia OM4 rau 500-meter inter{12}} lub tsev khiav uas yuav tsum tau ua ib hom txij thaum pib.
Txoj kev kho yog ncaj nraim: paub meej tias tus qauv transceiver ua ntej, xam cov nyiaj poob qis thib ob, thiab tom qab ntawd xaiv cov cable thiab connector kom phim.
Yuav txiav txim siab seb OM4 puas yog rau koj qhov project
Siv daim ntawv txheeb xyuas no los ntsuas seb OM4 puas haum rau koj qhov kev xa tawm:
- nrug:Puas yog txhua qhov khiav qis dua 400 m rau 10G, lossis qis dua 150 m rau 40G / 100G parallel optics? Yog tias muaj, OM4 siv tau. Yog tias ib qho kev sib txuas tseem ceeb tshaj qhov kev ncua deb, npaj rau ib qho - hom ntawm cov kev khiav.
- Ceev thiab optics:Dab tsi transceivers koj yuav siv? Sib piv OM4 nyob deb lub rooj saum toj no rau koj qhov tshwj xeeb module. Tsis txhob xav tias qhov "OM4 nrug" siv tau rau txhua hom kev ceev thiab optics.
- Connector architecture:Koj puas yuav sivduplex LC lossis parallel MPO? Cov lus teb nyob ntawm lub transceiver thiab breakout lub tswv yim, thiab nws cuam tshuam rau kev yuav khoom cable, xaiv thaj vaj huam sib luag, thiab kev npaj polarity.
- Poob nyiaj txiag:Suav txhua tus khub connector, splice, thiab thaj vaj huam sib luag hauv qhov txuas. Tshem tawm tag nrho cov kev xav tau poob los ntawm lub transceiver lub zog pob nyiaj siv. Yog tias qhov seem ntawm cov npoo yog nyias, ua kom luv luv los yog txo cov khoom sib txuas.
- Yav tom ntej Roadmap:Yog tias koj xav tias yuav tsiv mus nyob rau 400G lossis 800G ntawm tib lub cabling, ib qho - hom muaj txoj hauv kev kom pom tseeb. Yog tias koj lub qab ntug yog 10G-100G rau lub voj voog txuas ntxiv mus, OM4 ua haujlwm zoo.
- SWDM kev txiav txim siab:Yog tias wavelength -multiplexed duplex kis tau tus mob yog ib feem ntawm koj txoj kev npaj, ntsuas OM5 ua ntej cog lus rau OM4.
Xaus
OM4 fiber ntau tseem yog ib qho ntawm cov kev xaiv muaj zog tshaj plaws rau luv luv - ncav cuag 10G, 40G, thiab 100G tes hauj lwm hauv cov chaw zov me nyuam cov ntaub ntawv thiab cov tuam tsev lag luam. Nws muaj txiaj ntsig ntau dua bandwidth thiab kev ncua deb tshaj OM3, thiab nws nyob twj ywm tus nqi - sib tw tawm tsam ib leeg - hom rau kev khiav qis dua li ob peb puas meters qhov twg VCSEL -raws li optics khaws ib - txuas tus nqi qis.
Cov ciam teb yog qhov tseeb sib npaug. Tshaj li 400 meters, dhau 100G parallel optics ncav cuag, lossis rau ib qho kev sib tshuam - tsev lossis tsev kawm ntawv - nplai txuas, ib qho - hom yog lub hauv paus zoo dua. Thiab yog tias SWDM duplex scaling yog tshwj xeeb hauv koj daim ntawv qhia kev, OM5 tsim nyog kev soj ntsuam nrog OM4 es tsis yog qhov kev xav tom qab.
Qhov kev txiav txim siab yog los ntawm kev sib txuam fiber ntau rau transceiver, validating poob peev nyiaj tiv thaiv cov connector tiag tiag, thiab npaj rau lub voj voog hloov tshiab tom ntej - tsis yog los ntawm qib fiber ntau ib leeg.
FAQ
OM4 puas tuaj yeem txhawb nqa 100G dhau duplex LC?
Yog, tab sis nrog txo qis. Modules zoo li Cisco's 100G BiDi siv duplex LC ntawm OM4 nrog qhov siab tshaj plaws nyob deb li ntawm 100 meters - luv dua li 150-meter daim duab cuam tshuam nrog 100GBASE-SR10 parallel optics. Nco ntsoov xyuas cov ntaub ntawv tshwj xeeb ntawm cov transceiver ua ntej xav tias qhov deb.
Puas tsim nyog hloov kho dua tshiab ntawm OM3 rau OM4?
Yog tias koj rub cov cable tshiab, OM4 yuav luag ib txwm tsim nyog rau tus nqi marginal nce - nws muab rau koj 33% ntau dua ntawm 10G thiab 50% ntxiv ntawm 40G / 100G. Yog tias OM3 twb tau teeb tsa lawm thiab koj cov kev khiav haujlwm tau zoo nyob rau hauv nws qhov kev ncua deb, re-cabing tsis tshua muaj kev ncaj ncees tshwj tsis yog tias koj tseem hloov kho qhov nrawm.
Lub tsho xim dab tsi qhia txog OM4 fiber ntau?
OM4 cables feem ntau yog aqua, tib xim li OM3. Qee cov tuam txhab siv Erika violet (ib qho xim magenta tshwj xeeb) kom paub qhov txawv ntawm OM4 los ntawm OM3 pom, tab sis qhov no tsis yog universally saws. Ib txwm txheeb xyuas hom fiber ntau los ntawm cov cim cable, tsis yog lub tsho xim ib leeg.
Kuv puas tuaj yeem siv OM4 fiber ntau nrog tib -hom transceivers?
Tsis yog. Ib qho - hom transceivers ua haujlwm ntawm 1310 nm lossis 1550 nm nrog lub laser tsim rau 9 µm core fiber. Txuas lawv mus rau 50 µm multimode OM4 ua rau poob ntau dhau thiab tsis muaj kev sib txuas. Hom fiber ntau yuav tsum sib phim hom transceiver.
Muaj pes tsawg tus khub txuas tuaj yeem ua rau OM4 100G txuas?
Nws nyob ntawm tus transceiver qhov poob peev nyiaj. Ib txwm 100GBASE-SR4 module muaj tag nrho cov peev nyiaj poob ntawm kwv yees li 1.5–1.9 dB. Txhua tus khub MPO txuas txuas ntxiv kwv yees li 0.35-0.75 dB nyob ntawm qhov zoo. Hauv kev xyaum, feem ntau 100G kev sib txuas yog tsim los tsis pub ntau tshaj ob lossis peb qhov txuas txuas kom khaws cov npoo txaus.
Puas yog OM4 txhawb 400G Ethernet?
Tus qauv IEEE 802.3cm txhais tau hais tias 400GBASE-SR4.2, uas siv OM4 fiber ntau nrog BiDi VCSEL optics tshaj 8 fibers ntawm qhov deb mus txog 100 meters. Qhov no txuas ntxiv OM4 qhov cuam tshuam rau hauv 400G qhov chaw rau kev sib txuas luv luv, txawm hais tias ib qho - hom tseem yog qhov kev xaiv tseem ceeb rau 400G kev xa tawm dhau khib- mus rau -rack nrug.
