Yog tias koj tau saib ntawm fiber ntau optic catalogs tsis ntev los no, koj tau pom tias MPO breakout cables popping txhua qhov chaw. Thiab yog vim li cas zoo - tej yam no yog hom ntawm unsung heroes ntawm niaj hnub data center cabling. Tab sis ntawm no yog qhov khoom: tsis yog txhua qhov xwm txheej hu rau kev sib cais cable. Qee lub sij hawm lub pob tw cable ua rau kev nkag siab ntau dua. Qee zaum koj tsis xav tau MPO txhua.
Yog li cia kuv taug kev koj los ntawm thaum koj xav tau ib qho kev sib tw cable piv rau thaum koj zoo dua nrog lwm yam.
Lub Tswv Yim Tseem Ceeb Tom Qab Breakout Cables
Ib qho MPO breakout cable (qee tus neeg hu lawv cov fanout cables lossis harness cables- tib yam, txawv lub npe) siv qhov loj multi- fiber ntau MPO connector ntawm ib kawg thiab faib nws mus rau hauv ib tus neeg sib txuas ntawm ob sab. Feem ntau LC connectors, qee zaum SC, qee zaus FC lossis ST yog tias koj ua haujlwm nrog cov khoom qub.
Xav txog nws zoo li no: koj muaj lub vaj hose uas tuaj yeem ua rau ntau lub hoses me thaum kawg. Ib lub siab - muaj peev xwm txuas cov kiv cua tawm mus rau ntau qhov me me.
Tus lej khawv koob no feem ntau yog 8 fibers lossis 12 fibers, txawm tias koj yuav pom 16-fiber thiab 24-fiber versions ib yam nkaus. Ib qho 8-fiber MPO rau 4xLC breakout yog tej zaum qhov feem ntau configuration tawm muaj tam sim no.
Scenario 1: Lub 40G rau 10G Migration Sweet Spot
Qhov no yog ncaj ncees qhov twg breakout cables ci lub brightest.
Koj tau txais kev hloov pauv nrog 40G QSFP + chaw nres nkoj. Tab sis koj cov servers? Lawv tseem tab tom khiav 10G SFP + kev sib txuas. Koj ua dab tsi?
Ib qho 8- fiber ntau MPO-LC breakout cable daws qhov no zoo nkauj. Ib qho 40G QSFP + SR4 transceiver txuas rau MPO kawg, thiab tom qab ntawd koj tau txais plaub qhov kev sib txuas 10G ntawm LC kawg. Txhua khub ntawm fibers nqa ib 10G channel (ib fiber ntau xa, ib fiber tau txais).
Tib zaj dab neeg nrog 100G rau 25G. 100G QSFP28 SR4 transceiver tuaj yeem tawg mus rau plaub qhov kev sib txuas ntawm 25G SFP28 siv tib hom cable. Tsis muaj lus tso dag- tib lub cev cable ua haujlwm rau ob qho xwm txheej. Cov transceivers tab tom ua qhov hnyav nqa ntawm sab nrawm.
Thaum qhov no ua rau kev nkag siab:
Koj tab tom khiav nplooj ntawv -tus txha nraub qaum thiab koj cov pob txha pob txha muaj 40G / 100G uplinks tab sis nplooj ntawv hloov lossis cov servers muaj 10G / 25G chaw nres nkoj
Kev txwv nyiaj txiag txhais tau tias koj tsis tuaj yeem hloov kho txhua yam ib zaug
Koj xav siv qhov chaw nres nkoj loj tshaj plaws ntawm cov khoom kim heev - ceev keyboards
Scenario 2: Siab -Density Cabling yam tsis muaj mob taub hau
Ntawm no yog qhov uas nws tau nthuav.
Hauv kev teeb tsa ib txwm muaj, yog tias koj xav txuas 12 servers rau qhov hloov pauv, koj yuav khiav 12 tus neeg fiber ntau thaj cables. Qhov ntawd yog 12 cables snaking los ntawm koj lub cable tswj . 12 tej zaum cov ntsiab lus tsis ua hauj lwm . 12 lub cib fim rau ib tug neeg tsis txhob ntsaws qhov tsis ncaj ncees lawm.
Nrog rau MPO lub cev cable khiav mus rau lub vaj huam sib luag thiab cov kab hluav taws xob tawg ntawm qhov kawg ntawm cov neeg rau zaub mov, koj tau txais ib qho kev sib txuas ntawm caj dab huv si tuav dab tsi siv los ua lub hav zoov cable. Qhov kev tawg tshwm sim nyob qhov twg koj xav tau - ntawm qib khib.
Kuv tau pom cov chaw zov me nyuam uas lawv txo lawv cov cable ntim los ntawm ib yam dab tsi zoo li 70% tsuas yog los ntawm kev hloov mus rau MPO-raws li kev cabling nrog kev tawg ntawm qhov kawg.
Thaum siv Breakout Cables vs. Trunk Cables
Qhov no ua rau tib neeg tsis meej pem txhua lub sijhawm, yog li cia kuv qhia meej.
Siv lub cev cable thaum:koj tab tom txuas ob lub ntsiab lus uas ob leeg muaj MPO interfaces. Hloov mus hloov. Patch vaj huam sib luag rau thaj vaj huam sib luag. 100G chaw nres nkoj rau 100G chaw nres nkoj. Tib hom connector ntawm ob qho kawg. Yooj yim.
Siv lub breakout cable thaum:ib kawg muaj MPO interface (xws li lub siab -ceev transceiver lossis MPO thaj vaj huam sib luag chaw nres nkoj) thiab lwm qhov kawg xav tau kev sib txuas ntawm tus kheej (xws li servers nrog cov qauv LC duplex ports).
Kuj tseem muaj qhov kev xaiv thib peb uas tsis tau tham txog txaus: MPO hloov dua siab tshiab cables. Cov no muaj MPO connectors ntawm ob qhov kawg tab sis nrog ntau fiber ntau suav. Zoo li 24-fiber MPO faib ua peb 8-fiber MPO ob txhais ceg. Siv tau rau cov xwm txheej sib sau ua ke.
400G Era yog Hloov Yam
Daim ntawv ceev ceev ntawm qhov twg qhov no yog tag nrho cov lus.
400G transceivers tau dhau los ua ntau dua, thiab lawv tau thawb qhov kev sib tw cable txuas ntxiv. 400G DR4 optic tuaj yeem tawg mus rau plaub qhov kev sib txuas 100G DR. Ib qho 800G DR8 tuaj yeem kiv cua mus rau yim 100G raws.
Lub 16-fiber MPO connector (qee zaum hu ua MPO-16) tau dhau los ua tus qauv tshiab rau 400G daim ntawv thov. Yog tias koj tab tom npaj infrastructure rau ob peb xyoos tom ntej no, nco ntsoov qhov no. 8-fiber thiab 12-fiber breakouts tsis ploj mus, tab sis 16-fiber configurations yog qhov kev loj hlob tshwm sim.
Polarity Considerations (Yog, Qhov teeb meem no)
Kuv tsis mus ua piv txwv polarity yog exciting. Tab sis yog tias koj tau txais nws yuam kev, koj qhov txuas yuav tsis ua haujlwm.
MPO breakout cables yuav tsum tswj kom zoo polarity yog li cov kev xa tawm mus txog qhov raug txais cov chaw nres nkoj. Nrog breakout cables, qhov teeb meem tau yooj yim me ntsis vim hais tias koj tab tom mus los ntawm ib tug multi-fiber connector mus rau ntau qhov kev sib txuas duplex.
Hom B polarity feem ntau pom zoo rau kev xa mus rau optics. Txhua tus neeg muag khoom muaj lawv tus kheej cov kev taw qhia, thiab ua siab ncaj, txoj hauv kev nyab xeeb tshaj plaws yog lo nrog ib txoj kev polarity thoob plaws koj lub chaw khaws ntaub ntawv tag nrho. Kev sib xyaw hom polarity yog nug txog teeb meem thaum daws teeb meem.
Feem ntau cov tuam ntxhab tam sim no muab cov ntaub ntawv meej meej txog qhov twg polarity hom lawv cov kab hluav taws xob tawg. Yog tias lawv tsis ua, nug ua ntej xaj.
Tus Direct-Txuas vs. Structured Cabling Question
Koj tau txais ob txoj kev xa tawm yooj yim nrog cov kab hluav taws xob tawg.
Kev sib txuas ncaj qha:Lub breakout cable khiav ncaj qha los ntawm koj qhov hloov pauv QSFP chaw nres nkoj rau koj cov servers 'SFP chaw nres nkoj. Yooj yim, ncaj, zoo rau me me deployments los yog thaum cov cuab yeej nyob ze ua ke.
Structured kab:Lub breakout cable yog ib qho ntawm cov kab ke loj dua. MPO lub cev cable khiav los ntawm koj qhov hloov mus rau lub vaj huam sib luag. Lub breakout cable txuas lub thaj vaj huam sib luag rau koj cov servers. Qhov no ntxiv cov ntsiab lus sib txuas tab sis ua rau koj yooj yim rau kev txav, ntxiv, thiab hloov pauv.
Rau cov chaw lag luam cov ntaub ntawv, cov txheej txheem cabling yuav luag ib txwm yeej tawm. Rau kev xa tawm me me lossis chaw kuaj sim, kev sib txuas ncaj qha feem ntau siv tau ntau dua.
Tham Tiag: Thaum Tsis Siv Cov Khaub Ncaws Breakout
Tsis yog txhua qhov siab - kev sib txuas ceev xav tau kev sib cais.
Yog tias ob qho kawg ntawm koj qhov txuas yog 40G lossis 100G nrog MPO interfaces, siv lub cev cable hloov
Yog tias koj tab tom ua luv luv -kev sib txuas nyob deb hauv ib lub khib nyiab thiab tsuas yog xav tau ob peb fibers, cov qauv duplex patch cords yuav yooj yim dua thiab pheej yig dua
Yog tias koj cov cuab yeej siv BiDi (bidirectional) optics uas xa thiab tau txais ntawm ib qho fiber ntau, kev tawg cables tsis siv.
Tsis tas li ntawd, cov kab hluav taws xob tawg yuav raug nqi ntau dua ib qhov chaw nres nkoj tshaj qhov sib npaug ntawm cov hlua khi ib leeg. Tus nqi yog los ntawm cov txiaj ntsig kev tswj hwm cable, tsis yog kev txuag nqi raw.
Insertion poob thiab kev ua tau zoo
Qhov no tau pom ntau dhau lawm.
Txhua connector nyob rau hauv koj txoj kev kho qhov muag ntxiv insertion poob. Ib qho MPO connector feem ntau ntxiv 0.25dB rau 0.5dB ntawm kev poob, nyob ntawm qhov zoo. Cov LC connectors ntawm lub breakout kawg ntxiv lawv tus kheej poob ib yam nkaus thiab.
Rau multimode 40G / 100G SR4 daim ntawv thov, koj tau txais txog 1.5dB txog 1.9dB ntawm tag nrho cov nyiaj poob haujlwm los ua haujlwm nrog. Qhov ntawd suab zoo li ntau, tab sis nws tuaj yeem noj sai yog tias koj muaj ntau qhov kev sib txuas hauv koj txoj kev lossis yog tias koj cov khoom sib txuas qias neeg.
Qhov no yog vim li cas qis -poob MPO connectors tseem ceeb dua rau kev sib txuas optics ntau dua li lawv ua rau cov ntawv thov duplex. Pheej yig MPO connectors tuaj yeem thawb koj tawm tsam koj cov kev txwv poob.
Fiber hom xaiv
Feem ntau breakout cables nkoj hauv OM3 lossis OM4 multimode rau 40G / 100G SR4 daim ntawv thov. OM5 (cov khoom txiv qaub ntsuab) ntxiv qhov ntev ntawm lub peev xwm rau SWDM daim ntawv thov tab sis raug nqi ntau dua.
Rau kev ncav cuag ntev dua, ib zaug - hom OS2 breakout cables txhawb PSM4 thiab DR4 transceivers. Cov no tsis tshua muaj tshwm sim tab sis dhau los ua qhov tseem ceeb dua li cov chaw khaws ntaub ntawv txav mus rau 400G.
Txuas koj cable rau koj lub transceivers. Ib qho OM4 breakout cable yuav tsis ua rau koj zoo nrog ib qho - hom PSM4 optics.
Ntxuav thiab tshuaj xyuas
Hla tsis tau qhov no.
MPO connectors muaj ntau fiber ntau kawg ntsej muag nyob rau hauv ib tug connector. Ib qho qias neeg fiber ntau tuaj yeem tso koj qhov txuas tag nrho cov kev ua tau zoo. Thiab vim hais tias MPO connectors mate ntau fibers ib txhij, cov kab mob kis tau yooj yim ntawm cov connectors.
Ua ntej txhua qhov kev sib txuas, tshuaj xyuas. Yog tias qias neeg, ntxuav thiab rov- tshuaj xyuas. Qhov no tsis yog kev xyaum zoo xwb- nws yog qhov yuav tsum tau ua yog tias koj xav tau kev ua tau zoo.
Cov txheej txheem tu MPO muaj kev koom tes ntau dua li cov qauv LC / SC connectors. Koj xav tau cov cuab yeej tu tshwj xeeb uas tsim los rau ntau- fiber ntau lub ntsej muag. Tsis txhob sim improvise nrog cov khoom siv tu fiber ntau.
Wrapping Up
MPO breakout cables nyob hauv ib qho tshwj xeeb hauv cov ntaub ntawv chaw cabling. Lawv txuas qhov sib txawv ntawm siab -peb sib npaug ntawm optics thiab cov khoom siv duplex. Lawv yog qhov tseem ceeb rau kev ceev- xwm txheej tsiv teb tsaws chaw thiab siab - kev xa tawm ceev.
Tab sis lawv tsis yog ib qho kev daws teeb meem universal. Kev nkag siab thaum twg yuav siv lawv-thiab thaum twg yuav ncav cuag lwm yam- cais cov qauv siv cabling huv si los ntawm kev ntxhov siab.
Yog tias koj tab tom npaj 40G / 100G xa mus nrog cov cuab yeej sib xyaw ua ke, cov kab hluav taws xob tawg yuav tsum nyob ntawm koj lub radar. Yog tias koj ua tib yam - kev sib txuas ceev thoob plaws, cov pob tw yog qhov koj thawj koom ruam zoo dua. Thiab yog tias koj tsuas yog txuas ob peb lub servers hauv chav kuaj, tsis txhob xav tias nws dhau lawm - cov kab hluav taws xob kab hluav taws xob yog qhov zoo.
Txoj cai cable rau txoj haujlwm raug. Qhov ntawd yog txhua yam muaj rau nws.
