100G Fiber Optic Cabling: Yuav Ua Li Cas Xaiv Txoj Cai rau 100 Gigabit Ethernet

Kev dhia ntawm 10G mus rau 100G tsis yog "kaum nrawm dua." Nws yog ib qho kev sib txawv ntawm cov cabling architecture - ntau hom fiber ntau, sib txawv connector hom, txawv transceiver modules, thiab sib txawv ncav cuag qhov txwv uas nyob ntawm seb koj xaiv ua ntej ib lub cable tau rub.

Kuv tau saib cov ntaub ntawv chaw pab pawg yuav $ 40,000 tus nqi ntawm OM3 multimode trunk cables tsuas yog nrhiav tau lawv 100G QSFP28 optics xav tau OM4 yam tsawg kawg nkaus rau qhov kev ncua deb uas lawv tau khiav. Qhov ntawd yog qhov yuam kev uas tsis tshwm sim ntawm 10G, qhov twg cov npoo ntawm qhov yuam kev yog dav dua. Ntawm 100G, cov specs nruj dua thiab tus nqi ntawm kev ua tsis ncaj ncees yog siab dua.

Cov lus qhia no suav nrog cov ntsiab lus txiav txim siab tiag tiag: hom fiber ntau, qhov twg txuas, qhov twg transceiver, thiab deb npaum li cas txhua qhov sib xyaw ua ke mus txog - nrog rau IEEE tus lej qauv kom rov qab tau.

100G Ethernet: Dab tsi yog qhov tseeb ntawm Hlau?

Ua ntej, ib lo lus sau tseg uas tseem ceeb: qhov raug xaiv yog100G(100 Gigabit), tsis yog "100GB." "GB" txhais tau tias Gigabyte, ib chav tsev cia. "G" lossis "Gb" txhais tau tias Gigabit, tus nqi sib kis. Koj yuav pom "100GB" ntawm qee nplooj ntawv cov khoom lag luam - nws yog technically tsis ncaj ncees lawm, thiab hauv spec ntawv thiab RFPs, siv cov cim luv luv uas ib tug neeg tsis tau ua lawv cov homework.

100 Gigabit Ethernet (100GbE) yog txhais los ntawm IEEE 802.3ba (2010) thiab cov kev hloov kho tom ntej. Tsis zoo li 10GbE, uas siv tib lub laser ntawm ib lub wavelength, feem ntau 100GbE kev siv faib cov teeb liab hla.ntau txoj kab- tog twg los 4 × 25G los yog 10 × 10G - kom ua tiav 100G throughput. Yuav ua li cas cov kab no nqa tau nyob ntawm lub hom fiber ntau thiab transceiver module.

Fiber Hom rau 100G: Lub Rooj ncav cuag qhov tseem ceeb

Qhov no yog lub rooj feem ntau cov neeg yuav khoom xav tau tab sis ob peb tsab xov xwm muab - qhov siab tshaj plaws txhawb nqa rau txhua 100G transceiver hom ntawm txhua qib fiber ntau, ib qho IEEE thiab MSA specifications:

Qhov takeaway:OM3 tsuas tau txais koj 70 meters ntawm 100G.Qhov ntawd txaus rau sab saum toj - ntawm - khib kom kawg - ntawm - kab hauv qee qhov chaw tsim cov ntaub ntawv, tab sis tsis yog rau cov qauv cabling ntev dua. OM4 txuas mus rau 100 meters. Yog tias koj cov nroj tsuag cable xav tau kom ncav cuag deb tshaj qhov ntawd, koj nyob hauv ib qho chaw - hom.

OM3 vs. OM4 vs. OM5: Uas Multimode Qib rau 100G?

Tag nrho peb yog 50 µm core, laser -optimized multimode fiber ntau. Qhov txawv yogmodal bandwidth- lub peev xwm nqa tau siab -ceev teeb liab hla kev deb:

Cov tswv yim tswv yim:Yog tias koj tab tom rub tawm cov kab hluav taws xob multimode tshiab hnub no rau 100G cov ntaub ntawv chaw, OM4 yog qhov tsawg kawg nkaus. OM3 yog qib qub txeeg qub teg uas txwv koj qhov siab txog li 70 metres - zoo rau qee qhov kev xa tawm, tab sis nws pleev xim rau koj mus rau hauv ib lub ces kaum raws li cov khib nyiab nce thiab cov kab txuas ntev dua.

OM5 ntxiv cov peev xwm dav dav rau SWDM (Shortwave Wavelength Division Multiplexing), uas xa 4 wavelengths hla ib qho duplex fiber ntau tsis tas yuav tsum tau 8 lossis 12 fibers ntawm MPO breakout. Cov fiber ntau raug nqi ntau dua rau ib lub 'meter', tab sis rau greenfield tsim kev cia siab tias 200G / 400G tsiv teb tsaws, OM5's duplex kom zoo dua tuaj yeem txo tag nrho cov nqi cabling.

Hom Connector: MPO vs. LC ntawm 100G

Qhov no yog qhov twg 100G cabling tau lub cev txawv ntawm 10G.

100G-SR4siv ibMPO-12 connectornrog 8 active fibers (4 kis tau tus mob, 4 txais) nyob rau hauv ib tug multi-fiber laub- ntawm interface. Qhov no yog ib qho piv txwv ntawm optics mus kom ze - txhua ntawm 4 txoj kab tau txais nws tus kheej fiber ntau.

100G-SWDM4, DR1, FR1, LR4, ER4sivDuplex LC connectors- ob fibers, ib kis, ib tug txais. Lub multiplexing tshwm sim hauv lub transceiver (wavelength muxing rau SWDM4 / LR4, PAM4 modulation rau DR1 / FR1).

Rau kev tsim kab hluav taws xob, qhov kev sib txawv no ua rau kev tsim kho vaj tse:

Parallel optics (MPO) dominates tam sim no 100G data center deployments vim SR4 transceivers yog qhov pheej yig tshaj 100G optics muaj. Tab sis tus nqi tsim kho ntawm MPO pob tw, cassettes, thiab thaj vaj huam sib luag ntxiv. Raws li SWDM4 thiab ib leeg -lambda 100G transceivers (DR1, FR1) paub tab thiab poob rau hauv nqe, kev lag luam hloov mus rau duplex rau 100G thiab khaws MPO parallel optics rau 400G thiab 800G.

Yog tias koj tab tom tsim lossis txhim kho cov txheej txheem cabling, siv siab - zoofiber ntau optic connectorsthiabpatch kabrated rau qhov kev tso nyiaj poob nyiaj uas 100G xav tau. Ntawm 100G, txhua txhua 0.1 dB tseem ceeb tshaj ntawm 10G - qhov txuas poob nyiaj yuav nruj dua.

Lus Nug: 10G → 40G → 100G → 400G

Ib qho ntawm cov ntse tshaj plaws uas koj tuaj yeem ua tau thaum npaj 100G infrastructure yog tsim rau covtom ntej noceev tier. Nov yog li cas txoj kev txhim kho feem ntau ua haujlwm:

10G rau 100G ntawm multimode:Yog tias koj cov nroj tsuag uas twb muaj lawm yog OM4, koj tuaj yeem rov siv cov fiber ntau. Hloov 10G SFP + transceivers nrog 100G QSFP28 SR4, pauv LC thaj vaj huam sib luag rau MPO cassette panels, thiab koj tab tom khiav 100G ntawm tib lub fiber ntau. OM3 ua haujlwm ib yam nkaus, tab sis tsuas yog mus txog 70 meters.

100G txog 400G ntawm multimode:400G-SR8 siv MPO-16 nrog 16 fibers. Yog tias koj tau nruab 24-fiber MPO trunks rau 100G (qhov kev coj ua zoo tshaj), koj muaj peev xwm rau 400G yam tsis tau rov txuas ntxiv.

100G txog 400G ntawm ib qho - hom:400G-DR4 siv tib MPO-12 connector hneev taw li 100G-SR4 tab sis ntawm OS2 tib- hom. Yog tias koj tau teeb tsa ib qho - hom los ntawm qhov pib, qhov kev hloov pauv yog transceiver nkaus xwb.

Zaj lus qhia:rub fiber ntau dua li koj xav tau hnub no. A 24- fiber ntau MPO pob tw nqi me ntsis ntau dua li 12-fiber lub cev tab sis muab rau koj 400G txoj kev tsiv teb tsaws yam tsis tau kov cov kab cog. Rau ib hom kev khiav haujlwm, txhim kho cov khoom seem hauv tib lub kav dej yuav luag tsis muaj dab tsi thaum lub sijhawm teeb tsa thiab txuag nyiaj txiag tom qab.

Installation Tips los ntawm Teb

Ntsuam xyuas txhua qhov kev sib txuas.Ntawm 100G, tag nrho cov nyiaj txuas poob ntawm SR4 tshaj OM4 yog kwv yees li 1.9 dB - uas suav nrog cable attenuation, splice poob, thiab connector insertion poob. Nrog rau MPO connector ntawm txhua qhov kawg ntxiv rau lub cassette breakout, tej zaum koj yuav muaj plaub tus khub sib txuas hauv txoj kev. Ntawm 0.35 dB ib MPO kev twb kev txuas (ib txwm), koj twb nyob ntawm 1.4 dB ua ntej cable poob. Yuav luag tsis muaj npoo. Txhua qhov khoom qias neeg lossis tsis zoo sib txuas noj rau hauv pob nyiaj siv uas twb muaj rab chais - nyias.

Ntxuav MPO connectors kev ntseeg.MPO ferrules muaj 8 los yog 12 fiber ntau endfaces nyob rau hauv ib tug tib connector - ib tug kab mob fiber tua tag nrho cov txuas. Siv MPO- ib qho tshwj xeeb- nyem lub tshuab nqus tsev thiab tshuaj xyuas txhua lub ferrule nrog ib qhoMPO soj ntsuam Scopeua ntej mating.

Tsis txhob sib xyaw cov qib fiber ntau.Khiav ib qho OM3 thaj qaum ntawm OM4 lub cev degrades tag nrho cov txuas mus rau OM3 kev ua tau zoo. Txhua yam khoom siv hauv cov channel - trunk cable, patch cords, cassettes - yuav tsum yog tib qib fiber ntau lossis zoo dua.

Sau txhua yam.Ntawm 100G qhov ntom ntom, nrog MPO cov pob tw, cov kab sib txuas sib txuas, thiab cov kab hluav taws xob duplex tag nrho hauv tib lub txee, cov kab tsis muaj npe yuav ua rau tsis muaj kev sib txuas. Sau ob qhov kawg ntawm txhua lub cable, txhua qhov chaw nres nkoj vaj huam sib luag, txhua txoj haujlwm cassette. Koj tus kheej yav tom ntej - lossis lwm yam thev naus laus zis uas kov lub txee no - yuav ua tsaug rau koj.

Cov lus nug nquag