Yog lawm, multimode fiber ntau tseem tuaj yeem nqa 40G / 100G Ethernet tsiv teb tsaws, tab sis tsuas yog ntawm cov txuas luv luv thiab tsuas yog thaum tus qauv tsim tiag tiag cuam tshuam cov cabling cog uas koj twb muaj lawm. Yog tias koj lub nraub qaum yog MPO / MTP,40GBASE-SR4thiab100GBASE-SR4feem ntau yog txoj kev ncaj tshaj plaws. Yog tias txhua yam hauv av yog duplex LC,BiDilos yogSWBoptics tuaj yeem txuag koj qhov project recabling, tab sis lawv hloov qhov koj tuaj yeem ua tom qab nrog kev tawg thiab ntev - hloov kho lub sijhawm.
Cov lus qhia no yog sau los ntawm qhov kev xav ntawm cov ntaub ntawv chaw cabling engineer uas yuav tsum tau soj ntsuam cov nroj tsuag brownfield MMF ua ntej kos npe rau ntawm kev hloov kho kom nrawm. Lub hom phiaj yog los pab koj txiav txim siabuastxoj kev tsiv teb tsaws haum haum koj cov fiber ntau, tsis yog qhia koj tias muaj ntau yam.
Thaum Multimode Fiber tseem ua rau kev nkag siab rau 40G / 100G
Multimode fiber khwv tau nws qhov chaw luv luv - ncav cuag, siab - qhov sib txuas ceev - yam koj pom hauv ib lub tsev cov ntaub ntawv, ntawm kab, lossis hauv kab hauv txee. Rau kev hla ntev dua - tsev kawm ntawv lossis metro dhia, kev sib tham hloov mus rau ib qho - hom ua ntej koj txawm qhib ib phau ntawv qhia transceiver.
Rau kev npaj, ob qib fiber ntau ua haujlwm feem ntau: OM3 thiab OM4. IbCisco cov ntaub ntawv transceiver, 40GBASE-SR4 txhawb nqa txog 100 meters ntawm OM3 thiab 150 meters ntawm OM4/OM5; 100GBASE-SR4 txhawb nqa txog 70 meters ntawm OM3 thiab 100 meters ntawm OM4. Cov no yog cov lej koj yuav tsum tau muab piv rau koj qhov ntev channel ntsuas, tsis yog qhov koj xav tau. Rau qhov kev sib sib zog nqus ntawm qib-los ntawm- qib ncav cuag, saib pebOM1-OM5 multimode nrug siv.
Peb cov xwm txheej qhia rau koj MMF tseem yog txoj cai hu: kev sib txuas nyob hauv ib lub tsev, qhov chaw nres nkoj ceev, thiab koj xav khaws cov fiber ntau. Yog tias ib qho ntawm cov no pib plam - tshwj xeeb tshaj yog ncav cuag - nws yog lub teeb liab kom tsis txhob ncab MMF thiab pib pricing ib zaug - hom kab.
Ntsuam xyuas cov cabling uas twb muaj lawm ua ntej xaiv 40G / 100G Optics
Feem ntau ua tsis tau tejyam hloov kho dua tshiab kuv tau pom pib nrog cov lus nug tsis ncaj ncees lawm: "Qhov twg optic pheej yig tshaj?" Thawj lo lus nug yog: "Kuv puas muaj dab tsi hauv lub tais?"
Muaj ob lub hauv paus los ntawm cov khoom muag:
- MPO/MTP caj qaum twb nyob rau hauv qhov chaw.Yog tias koj siv 10GBASE-SR dhau MTP pob tw ob peb xyoos dhau los, txav mus rau 40GBASE-SR4 parallel optics feem ntau yog ib qho kev hloov pauv thiab patching kev tawm dag zog, tsis yog rov ua dua. Qhov no yog qhov qis tshaj - txoj kev sib txhuam thiab yog vim li cas MTP trunks tsim nyog them rau thawj zaug. PebMTP vs MPO xaiv phau ntawv qhianpog qhov sib txawv connector uas tseem ceeb ntawm no.
- Duplex LC nkaus xwb.Kev khiav haujlwm tshiab multifiber trunks los ntawm ib qho chaw nquag yog kim thiab cuam tshuam. Qhov no yog qhov twgBiDi transceiversthiab SWDM optics khwv tau lawv qhov chaw - lawv cia koj rov qab siv cov duplex fiber ntau uas koj twb muaj, ntawm tus nqi ntawm qee qhov kev hloov pauv yav tom ntej.
Ib qho lus ceeb toom ncaj ncees los ntawm cov hauj lwm brownfield: yog tias koj twb tau thawb yav dhau los OM3 / OM4 mus txog qhov txwv, lossis yog tias koj tsib - daim ntawv qhia xyoo hla 100G, "yuam MMF ua hauj lwm" feem ntau yog kev lag luam cuav. Atib -mode transceiver pivyuav tsum nyob ntawm lub rooj los ntawm hnub ib.
SR4 vs BiDi vs SWDM: Txoj Kev Txhim Kho Qhov Zoo Li Cas Rau Koj Cov Ntoo MMF?
Peb txoj kev xaiv no tag nrho cov av ntawm "40G lossis 100G dhau MMF," tab sis lawv daws cov teeb meem sib txawv thiab kev lag luam sib txawv. Kho lawv li kev hloov pauv tau yog ib qho ntawm pawg ua yuam kev feem ntau ua.
40GBASE-SR4: Parallel Optics ntawm MPO-12
SR4 yog 4-txoj kab 850 nm interface dhau MPO-12 kev sib txuas, ncav cuag 100 m ntawm OM3 thiab 150 m ntawm OM4. Nws yog txhais nyob rau hauvIEEE 802.3 ib. Qee qhov 40G SR4 modules kuj txhawb nqa 4 × 10G breakout los ntawm kev sib npaug ntawm - mus rau -duplex breakout cable, uas yog siv tau thaum lub sij hawm tsiv teb tsaws chaw uas qee qhov chaw nres nkoj yuav tsum nyob ntawm 10G.
Siv nws thaum koj lub nraub qaum twb yog MPO / MTP, koj qhov kev ncav cuag tau yooj yim nyob rau hauv OM3 / OM4 txwv, thiab koj xav tau cov qauv- ua raws txoj hauv kev uas ua tau zoo nrog rau yav tom ntej 100G SR4 ntawm tib lub fiber ntau suav.
100GBASE-SR4: Niaj hnub nimno 100G MMF Default
Yog tias koj tab tom nyeem cov ntaub ntawv qub uas kho SR10 raws li lub hauv paus rau 100G MMF, tus qauv kev puas siab puas ntsws yog qhov qub. Qhov kev txav mus rau 25G-ib - txoj kab VCSEL tau ua100GBASE-SR4ua tau dhau ntawm tib MPO-12 kev sib txuas li 40GBASE-SR4, thiab qhov ntawd yog qhov teeb tsa lub hauv paus tau tsim los ntawm.
Xyaum, qhov no txhais tau tias cov lus nug txog kev npaj tiag tiag rau 100G dhau MMF tsis yog "nws puas tuaj yeem ua tau?" tab sis "Kuv puas yog OM3 / OM4 cog raws li SR4's 70 m / 100 m ncav cuag lub hnab ntawv, nrog cov khoom sib txuas huv txaus kom dhau qhov kev sib txuas?
BiDi thiab SWDM: Duplex -Fiber Reuse Paths
BiDi thiab SWDM tau tshwm sim tshwj xeeb rau cov chaw uas cov pob txha kho qhov muag tsis muaj MTP kev sib txuas thiab qhov project recabling tawm ntawm lub rooj. Cisco's 40G-BiDi thiab 100G-BiDi modules, piv txwv li, siv duplex LC multimode thiab caij tib lub fiber ntau khub uas koj tau khiav 10G rau.
Lawv raug yuam kom thaum muaj kev cuam tshuam tus nqi siab. Lawv tsis zoo haum thaum koj xav tau kev hloov pauv yooj yim - qhov sib txuas optics txhawb 4 × 10G lossis 4 × 25G breakout, thaum BiDi thiab SWDM tsis ua. Yog hais tias breakout yog nyob rau hauv koj tsim hnub no, los yog koj pom nws los, qhov kev sib pauv no tseem ceeb.
| Kev xaiv | Txuas | Nkag mus (OM3 / OM4) | Reuses duplex LC? | Kev tawg? | Zoo tshaj plaws |
|---|---|---|---|---|---|
| 40GBASE-SR4 | MPO-12 | 100 m / 150 m | Tsis muaj | Yog (4 × 10G) | MPO caj qaum twb nyob rau hauv qhov chaw |
| 100GBASE-SR4 | MPO-12 | 70 m / 100 m | Tsis muaj | Yog (4 × 25G) | MPO caj qaum, niaj hnub 100G rollouts |
| 40G / 100G IB | Duplex LC | ~ 100m / ~ 150m (tus neeg muag khoom spec) | Yog lawm | Tsis muaj | Brownfield duplex LC, tsis tshua muaj kev cuam tshuam kam rau ua |
| 100G SWB 4 | Duplex LC | ~ 75m / ~ 100m (MSA) | Yog lawm | Tsis muaj | Duplex LC rov siv dua qhov twg BiDi tsis muaj nyob rau ntawm lub platform |
Ib Daim Ntawv Txiav Txim Rau Koj Txoj Kev Nkag Tebchaws
Taug kev no hauv kev txiav txim. Nres ntawm thawj ceg uas haum rau koj ib puag ncig:
- Puas yog koj lub nraub qaum MPO / MTP?→ Npaj ib ncig 40GBASE-SR4 lossis 100GBASE-SR4. Xyuas kom meej polarity thiab ntxuav tag nrho cov endfaces ua ntej commissioning. Tshuag txoj caiMPO / MTP lub cev cablesrau koj cov fiber ntau suav thiab polarity txoj kev.
- Duplex LC nkaus xwb, thiab recabling tsis muaj tseeb lub voj voog no?→ Nqe ib txoj kev BiDi ua ntej; poob rov qab rau SWDM yog tias koj lub platform hloov pauv tsis muab BiDi ntawm qhov nrawm uas koj xav tau.
- Puas yog ib qho kev sib txuas dhau OM4's SR4 ncav cuag, lossis puas yog txoj kev hla 400G hauv ~ 3 xyoos?→ Nres. Sib piv rau ib leeg - hom ua ntej koj yuav ib yam dab tsi. Cov nyiaj khaws cia MMF feem ntau ploj hauv ib lub voj voog tshiab.
- Puas muaj cov qauv tsim kom tawg tam sim no lossis zoo li hauv 2 xyoos?→ Parallel SR4 nkaus xwb. BiDi thiab SWDM yuav yuam kom koj rov tsim kho dua tom qab.
Feem ntau yuam kev hauv 40G / 100G Multimode hloov kho
Cov qauv kuv tau pom rov ua dua hla cov haujlwm brownfield:
- Kho SR4, BiDi, thiab SWDM raws li kev hloov pauv.Lawv daws teeb meem sib txawv. Connector architecture thiab breakout yuav tsum tsav qhov kev xaiv, tsis module nqi.
- Pib nrog optic pricing es tsis txhob cable kev muaj tiag.Qhov pheej yig tshaj transceiver ntawm cov nroj tsuag uas tsis tuaj yeem txhawb nqa nws yog qhov yuam kev kim tshaj plaws ntawm qhov project.
- Siv SR10-era kev xav rau 100G.Kev npaj niaj hnub yog SR4-centric. Yog hais tias ib tug neeg tseem sizing fiber ntau suav rau SR10, xyuas seb daim ntawv tsim tau hloov kho dua kaum xyoo no.
- Reusing duplex fiber ntau yam tsis ua qauv kev hloov kho tom ntej.BiDi txuag nyiaj hnub no. Yog tias lub voj voog tom ntej no xav tau kev tawg lossis 400G, cov nyiaj khaws tseg ntawd rov qab los ua daim nqi rov qab tag nrho - thiab qhov ntawd feem ntau yog qhov tshwm sim tsis zoo dua li ua MTP rub thaum lub sijhawm 40G / 100G project.
- Tsis quav ntsej qhov kev tshuaj xyuas polarity ntawm cov laus MPO cov nroj tsuag.Polarity convention hloov ntau xyoo thiab thoob plaws installers. Xav tias tsis muaj dab tsi txog thaum nws tau sim.
Cov lus nug nquag
Multimode fiber ntau txhawb 100G Ethernet?
Yog lawm, ntawm qhov txuas luv luv . 100GBASE-SR4 khiav mus txog 70 m ntawm OM3 thiab 100 m ntawm OM4 dhau MPO-12 kev sib txuas. BiDi thiab SWDM variants txuas mus txog qhov zoo sib xws ntawm duplex LC. Tshaj li qhov kev ncua deb, ib hom yog cov lus teb huv dua.
40GBASE-SR4 vs BiDi - Kuv yuav xaiv qhov twg?
Yog tias koj twb muaj MPO / MTP trunks, SR4 yeej ntawm cov qauv kev sib tw thiab kev hloov pauv yooj yim. Yog tias koj tsuas muaj duplex LC thiab recabling tsis nyob rau hauv pob nyiaj siv, BiDi yeej ntawm kev cuam tshuam tus nqi. Tsis yog universally zoo dua.
Kuv puas tuaj yeem hloov kho duplex LC multimode rau 100G yam tsis tau rov ua dua?
Feem ntau, yog - siv 100G-BiDi lossis 100G-SWDM4 optics. Koj pauv hloov pauv hloov pauv rau fiber ntau rov siv dua, thiab koj yuav tsum ua kom huv si -xyuas koj lub platform hloov pauv cov npe txhawb nqa ua ntej ua haujlwm.
OM3 lossis OM4 rau 100GBASE-SR4?
OM4 muab koj 100 m ncav cuag; OM3 muab rau koj 70 m. Yog tias koj qhov txuas OM3 txuas tag nrho qis dua 70 m nrog cov peev nyiaj poob zoo, tsis tas yuav hloov kho dua tshiab. Yog tias koj nyob ze rau qhov txwv, lossis npaj kev hloov kho ntxiv, OM4 tsim nyog tus nqi sib txawv thaum rub tawm tshiab.
Thaum twg nws tsim nyog recabling es tsis txhob siv MMF?
Thaum koj daim ntawv qhia kev hla hla 400G nyob rau hauv qhov kev hloov tshiab tom ntej, thaum cov qauv tsim tawm tab tom los, lossis thaum txuas txuas tsis haum OM4 SR4 mus txog. Thaum lub sijhawm ntawd, duplex rov siv dua txuag koj cov nyiaj ntawm qhov project no thiab raug nqi ntau dua rau lwm qhov.
Kuv puas xav tau ib qho - hom rau 40G / 100G hauv qhov chaw khaws ntaub ntawv?
Tsis yog luv luv, ntom ntom hauv - tsim txuas - MMF nrog SR4 lossis BiDi ua haujlwm zoo. Rau inter-lub tsev, txoj kab rov tav ntev, lossis ib qho kev mus txog yav dhau los OM4 SR4 txwv, ib qho - hom yog hu txoj cai.
Kev Xaiv Txoj Kev Hauv Ib Kab
Xaiv koj txoj kev 40G / 100G ntawm plaub axes, hauv qhov kev txiav txim tseem ceeb no:connector architecture koj twb muaj → ntsuas qhov deb → breakout yuav tsum tam sim no thiab nyob rau hauv 2 xyoo → roadmap tshaj 100G. Txhua qhov tseem ceeb - suav nrog cov npe ntawm cov qauv nqi - nyob rau hauv qab plaub no. Ib txoj kev npaj ua rau ntawm plaub axes zoo li muaj sia nyob nws thawj qhov kev tshuaj xyuas; cov phiaj xwm tsim los ntawm tus nqi transceiver yuav tsis ua.
Xaus
Multimode fiber tseem yog lub hauv paus siv tau rau 40G / 100G Ethernet tsiv teb tsaws - muab tus qauv tsim hwm cov nroj tsuag uas koj twb muaj lawm. MPO / MTP cov pob txha siv txoj hauv kev SR4. Duplex LC ib puag ncig lean mus rau BiDi lossis SWDM. Kev ncav cuag ntev lossis kev txhim kho kev ua phem rau txoj kev taw qhia mus rau ib qho - hom ua ntej cov nyiaj tau cog lus.
Qhov tseem ceeb tshaj plaws uas koj tuaj yeem ua tau lub lim tiam no tsis yog piv cov nqi transceiver. Nws yog taug kev cov cabling: qib fiber ntau, hom connector, channel ntev, polarity. Thaum plaub qhov tseeb no tau sau thiab txheeb xyuas, txoj kev tsiv teb tsaws txoj cai feem ntau yog qhov pom tseeb.
