MPO connectorfiber ntau sawv cev rau ib qho ntawm cov kev hloov pauv tseem ceeb tshaj plaws hauv cov ntaub ntawv chaw cabling infrastructure hauv ob xyoo dhau los. Txhais raws li IEC 61754-7 thiab TIA-604-5 (FOCIS-5) cov qauv thoob ntiaj teb, Multi-fiber Push-On interface consolidates nyob qhov twg los ntawm 8 mus rau 72 tus neeg kho qhov muag fibers rau hauv ib lub voj voos ferrule, ua kom muaj kev sib txuas sib txuas sib txuas uas yuav ua rau lub cev tsis muaj zog lossis kev sib txuas ntawm SC. Cov thev naus laus zis rov qab mus rau NTT txoj kev loj hlob ntawm MT (Mechanically Transferable) ferrule nyob rau hauv nruab nrab-1980s rau Japanese neeg siv xov tooj kev pab cuam, txawm hais tias nws tsis yog kom txog rau thaum hyperscale cov ntaub ntawv chaw tshwm sim nyob rau hauv 2000s uas MPO tau txais nws tam sim no dominance.
Kev muaj tiag txhua yam ntawm Multi-Fiber Termination
Dab tsi uaMPO connectorfiber ntau xav tau los ntawm ib qho kev pom zoo engineering yog qhov yuav tsum tau muaj nyob hauv ntau lub fiber ntau ib txhij. Peb tsis tau tham txog kev ua kom ob lub fibers xaus ntawm no-Peb tab tom tham txog kev ua kom ntseeg tau tias 12, 16, 24, lossis ntau dua fibers ua tiav kev sib cuag ntawm lub cev tsis pub dhau qhov ntsuas hauv microns. IEC PAS 61755-3-31 tus qauv qhia qhov tseem ceeb tsis zoo suav nrog lub kaum sab xis ntawm polish, fiber ntau qhov siab, thiab qhov siab tshaj plaws fiber ntau sib txawv thoob plaws txhua qhov fibers hauv array.
Ntawm no yog qhov uas tau nthuav. Yuav kom ua tiav lub hom phiaj kev poob qis tsawg dua lossis sib npaug li 0.5 dB ib qho kev sib txuas, tag nrho cov tub ntxhais fiber ntau misalignment yuav tsum nyob qis dua 1.6μm. Qhov ntawd yog kwv yees li 1/50th ntawm txoj kab uas hla ntawm tib neeg cov plaub hau. Qhov tso cai stackable kam rau ua rau cov haujlwm fiber ntau thiab coj tus pins? Nyob ib ncig ntawm 0.8μm rau ferrule. Thaum koj xav tias 12- fiber ntau MPO muaj peev xwm kam rau ua pawg- ntawm txhua txoj haujlwm fiber ntau, koj pib txaus siab vim li cas qhov kawg ntawm lub ntsej muag geometry tseem ceeb ntau dua li nws ua nrog cov khoom sib txuas yooj yim.
Tus txiv neej / poj niam xaiv nyob rau hauv MPO connector fiber systems tsim kev tsis sib haum xeeb rau cov neeg tshiab rau thev naus laus zis. Txiv neej connectors feature ob txoj hlua khi; Cov poj niam muaj cov lus qhia sib xws. Tag nrho cov khoom siv MPO cov chaw nres nkoj ntawm cov keyboards thiab transceivers yog txiv neej. Qhov no txhais tau hais tias txhua txoj hlua txuas txuas rau cov khoom siv nquag yuav tsum tau txiav nrog tus poj niam txuas. Tau txais qhov no rov qab ua rau cov fibers puas. Kuv tau pom tag nrho cov pob qij txha rov ua haujlwm dua vim tias ib tus neeg tau teev cov poj niam txiv neej tsis ncaj ncees lawm ntawm kev yuav khoom.
Vim li cas 12-Fiber dhau los ua qhov qub (Thiab yog vim li cas thiaj hloov)
12-fiber MPO configuration dominated thaum ntxov deployments rau ib tug yooj yim vim li cas: nws ua raws li 40G SR4 thiab thaum ntxov 100G SR4 transceiver architectures. Plaub txoj kab xa tawm, plaub tau txais, theoretically tawm plaub fibers tsis siv. Cov khib nyiab cuam tshuam cov kws tsim vaj tsev network, thiab yog li ntawd. Thaum koj tab tom khiav ntau txhiab ntawm cov kev sib txuas no, tsis siv cov fiber ntau sawv cev rau cov peev nyiaj siv.
8- fiber ntau MPO connector fiber ntau sib dhos tau tshwm sim los ua lwm txoj hauv kev zoo dua rau 40G thiab 100G daim ntawv thov. Tib cov ntaub ntawv tus nqi, tus nqi qis dua, txo qis kev tso tawm. Tab sis kev lag luam tsis nres rau ntawd . 16- fiber ntau MPOs tam sim no txhawb 400G QSFP-DD thiab OSFP transceivers, thaum 24-fiber configurations phiaj 800G xa mus siv 8 xa mus thiab 8 tau txais txoj kab ntawm 100 Gbps txhua. The density increases are staggering when you consider that 24-fiber MPOs occupy essentially the same physical footprint as their 12-fiber predecessors.
Ib yam uas tsis tau tham txog txaus: kev suav fiber ntau ua rau kev tswj geometry nyuaj dua. Qhov teeb meem fiber ntau qhov sib txawv yuav ua rau nyuaj rau kev tswj hwm nrog 24 fibers piv rau 12. Txawm tias qhov siab me me sib txawv ntawm cov array ua rau muaj kev pheej hmoo ntawm kev tu tsis tiav thiab tsis sib haum xeeb. Qhov no tsis yog qhov theoretical- cov kws tshaj lij hauv cheeb tsam ib txwm tawm tsam nrog qhov no hauv cov cheeb tsam hyperscale.
MTP Versus MPO: Lub Branding tsis meej pem
Cov neeg pov ib ncig ntawm MTP thiab MPO sib hloov, uas technically tsis yog lawm tab sis nco cov nuance tseem ceeb. MTP yog US Conec lub npe lag luam rau lawv qhov kev txhim kho MPO connector tsim. Ob leeg tau ua raws li tib IEC thiab TIA cov qauv. Ob leeg intermate yam tsis muaj teeb meem. Tab sis MTP suav nrog ntau qhov kev tsim kho engineering uas txhim kho kho qhov muag thiab kev ua haujlwm zoo: kev ua siab ntev dua, kev ua kom zoo dua qub, zoo sib xws cov yam ntxwv tsis zoo.
Rau feem ntau cov ntaub ntawv chaw siv, tus qauv MPO connector fiber ua tau zoo txaus. Qhov twg MTP khwv tau nws tus nqi hwm yog nyob rau hauv ultra- siab- cov tshuab ceev -400G thiab 800G txuas qhov twg cov peev nyiaj poob yog rab chais nyias. Thaum koj ua haujlwm nrog tag nrho cov peev nyiaj txuas ntawm 1.5 dB thiab koj lub transceiver - mus rau -transceiver margin tej zaum 0.7 dB, connector zoo tsis yog ib qho zoo -kom muaj.
US Conec kuj muaj MTP Cov Neeg tseem ceeb txuas txuas uas txo qis qhov poob mus txog 50% piv rau tus qauv MTP. Uas suab zoo li kev lag luam hyperbole txog thaum koj sim lawv tiag tiag. Cov neeg tseem ceeb-qib cov khoom ntsuas tsis tu ncua ntsuas qis dua 0.25 dB rau ib qhov txuas- mus txog qhov uas suav tias yog qhov ua tau zoo tshwj xeeb rau ib leeg - fiber ntau LC connectors ob peb xyoos dhau los.
Polarity Management hauv MPO Systems
Polarity nyob rau hauv optical tes hauj lwm txhais tau tias kom ntseeg tau tias txhua kis fiber ntau raug sib raug rau nws cov counterpart tau txais. Nrog duplex LC kev sib txuas, qhov no yog qhov tsis tseem ceeb -koj pauv cov fibers yog tias qhov txuas tsis tuaj. MPO connector fiber ntau ua rau kev tswj polarity ntau qhov nyuaj vim tias cov haujlwm fiber ntau yog tsau rau hauv lub ferrule. Koj tsis tuaj yeem txav cov fiber ntau yog tias muaj qee yam tsis raug.
TIA-568 txhais peb txoj kev polarity: Hom A (ncaj- dhau), Hom B (hla- dhau), thiab Hom C (paired flip). Hom A txoj kev fiber ntau 1 ntawm ib kawg rau fiber 1 ntawm lwm qhov kawg nrog tus yuam sij nce / qhov tseem ceeb hauv kev taw qhia. Hom B hla cov fibers kom txoj hauj lwm 1 txuas mus rau txoj hauj lwm 12, txoj hauj lwm 2 mus rau txoj hauj lwm 11, thiab lwm yam. Hom C flip-flops khub-fiber 1 rau fiber 2, fiber 3 rau fiber 4.
Kev lag luam tau tsiv mus rau Hom B rau feem ntau qhov sib npaug ntawm optics xa tawm vim nws yooj yim transceiver - mus rau - transceiver txuas. Tab sis kev txhim kho qub txeeg qub teg siv hom A lossis ib puag ncig sib xyaw ua rau mob taub hau tsis tu ncua. Tsis ntev los no, ANSI/TIA-568.3-E tau qhia txog txoj hauv kev thoob ntiaj teb polarity U1 thiab U2 npaj los txhim kho kev txhim kho yav tom ntej. Txawm hais tias cov no ua tau txo qhov tsis meej pem hauv kev xyaum tseem yuav pom.
Dab tsi mus txawv tebchaws ntau tus kws tshaj lij: koj tsis tuaj yeem txheeb xyuas MPO polarity nrog qhov yooj yim pom qhov tsis pom qhov chaw uas koj tuaj yeem nrog duplex fibers. Lub VFL yuav pom lub teeb hla dhau, tab sis nws yuav tsis lees paub tias daim ntawv qhia yog raug hla txhua txoj haujlwm fiber ntau. Kev txheeb xyuas qhov polarity kom zoo yuav tsum muaj ib tus kws ntsuas MPO tshwj xeeb lossis kev kuaj xyuas txuas ntxiv uas siv kiv cua- tawm cords.
Insertion Poob Testing: Ntau qhov nyuaj dua li koj xav
Kev ntsuam xyuas MPO connector fiber ntau nthuav cov kev cov nyom uas ib leeg - fiber connectors tsuas tsis muaj. Ib qho 12- fiber ntau MPO sib dhos yuav tsum tau 12 qhov kev ntsuas qhov poob ntawm ib tus neeg, ntxiv rau qhov poob rov qab ntawm txhua qhov channel. Qhov ntawd yog qhov muaj peev xwm 96 kev ntsuas rau ib lub cable thaum koj suav rau ob qho kev qhia. Automating cov txheej txheem no tsis yog xaiv tau-nws yog qhov tsim nyog rau txhua qhov kev tsim nyog.
Qhov poob specifications lawv tus kheej tsim nyog mloog. Raws li EIA/TIA 568, MPO connectors tuaj yeem muaj qhov nkag siab tshaj plaws ntawm 0.75 dB- ntau dua li 0.3 dB feem ntau teev rau cov nplaum - polished simplex connectors. Cov neeg tseem ceeb- qib cov khoom ua rau qhov no poob rau 0.35 dB lossis zoo dua. Thaum xam cov nyiaj tau los ntawm kev sib txuas, cov kev sib txawv no sib xyaw ua ke ntawm ntau lub ntsiab lus sib txuas.
Ib qho kev sim ua kom pom tseeb uas ntes tib neeg: cov txheej txheem siv tseem ceeb heev. Peb -kab siv txoj kev (launch cord, reference cord, receive cord) suav nrog ob lub connector interfaces hauv xoom siv. Thaum koj sim cov cuab yeej hauv kev sim, cov kev sib txuas no tsis suav nrog koj qhov ntsuas tau. Siv txoj kev siv sib txawv, thiab koj cov lej hloov pauv. Cov ntaub ntawv yuav tsum qhia meej tias siv txoj hauv kev twg, lossis cov ntaub ntawv xeem yuav tsis muaj nuj nqis rau kev sib piv.
Rov qab poob specifications kuj txawv raws li hom polish. UPC (ultra lub cev tiv tauj) polish feem ntau ua tiav nyob ib ncig ntawm -50 dB rov qab poob- txaus rau feem ntau cov ntawv thov multimode. APC (lub cev sib tiv tauj) polish ua tiav -60 dB lossis zoo dua, qhov tseem ceeb rau kev siv ib hom kev siv thiab DWDM cov tshuab uas qhov kev xav rov qab ua rau ntsuas kev ua haujlwm tsis zoo. Koj tsis tuaj yeem ua khub UPC thiab APC txuas yam tsis muaj kev puas tsuaj rau ob qho tib si.
Cov ntaub ntawv Center Applications: Trunk Cables thiab Breakout Configurations
Cov ntaub ntawv tseem ceeb siv rau MPO connector fiber ntau hauv cov chaw cov ntaub ntawv yog ua ntej -tawm qaum lub cev cabling. Es tsis txhob rub ib tug duplex cables thiab txiav lawv nyob rau hauv -site- ib tug ua hauj lwm - cov txheej txheem hnyav nrog rau qhov zoo variability -koj nruab Hoobkas- txiav MPO trunks. Lub sijhawm xa khoom poob qis heev. Kev tswj hwm cable txhim kho. Txoj kev congestion txo.
Ntawm thaj chaw, cov MPO pob tw no feem ntau hloov mus rau LC duplex ntawm ob lub cassettes lossis hybrid kiv cua- tawm thaj qaum. A 12-fiber trunk ua 6 duplex LC txuas. Lub cev 24-fiber yields 12. Lub cassette mus kom ze muab lub koom haum ntxuav rack; kiv cua-tawm cords muab kev yooj yim dua rau kev sib txuas cov khoom siv ncaj qha.
Rau kev sib txuas ntawm cov khoom siv optics-40G SR4, 100G SR4, 400G SR8-MPO connector mates ncaj qha nrog lub transceiver. Tsis muaj kev hloov mus rau LC. Qhov no yog qhov uas thev naus laus zis yeej ci: ib qho 12-fiber MPO hloov qhov uas yuav yog 8 tus neeg LC txuas rau 40G txuas. Qhov chaw txuag nyob rau hauv high-density switch deployments yog qhov tseem ceeb.
Cov ntawv thov Breakout tsim nyog tau hais tshwj xeeb. Ib qho 400G QSFP-DD hloov chaw nres nkoj tuaj yeem txuas rau plaub 100G servers siv MPO-rau-LC breakout qaum. Qhov no ua rau kev siv qhov chaw nres nkoj kim tshaj plaws thaum pab cov servers uas tseem tsis tau txhawb nqa haiv neeg 400G. Kev lag luam feem ntau pom zoo rau cov kab txuas ntxiv.
400G / 800G Kev Hloov Pauv thiab Tshaj Tawm
Tam sim no MPO connector fiber evolution yog tsav yuav luag tag nrho los ntawm 400G thiab tshwm sim 800G raws li txoj cai. 400G SR8 siv 8 fibers rau ib qho kev taw qhia, feem ntau siv nrog 16- fiber MPOs. 800G ob npaug qhov ntom dua. Lub transceiver roadmap nce xav tias MPO-raws li kev sib kis kis tau tus mob raws li txoj kev sib txuas ua ke.
Ib zaug -mos MPO daim ntawv thov tseem loj tuaj, tshwj xeeb tshaj yog ntev dua - ncav cuag 400G variants xws li FR4 thiab DR4. Tib hom - hom coj nws tus kheej cov kev cov nyom: kev sib tw nruj dua, cov nqi sib txuas ntau dua, thiab kev nyiam rau APC polish kom txo qis kev xav. Tus nqi hwm tshaj multimode MPO cov rooj sib txoos tseem muaj ntau, uas txwv tsis pub siv rau hauv cov ntawv thov uas muaj ntau hom kev ncav cuag txaus.
Saib ntxiv tom ntej, co- ntim khoom optics thiab ntawm -board optics tsom kom txav cov photonic Cheebtsam kom ze rau qhov hloov silicon. Qhov no tuaj yeem hloov pauv cov kev xav tau ntawm kev sib txuas ntawm qib nti, tab sis khib- rau - khib thiab kab - rau - kab cabling yuav txuas ntxiv vam khom rau MPO connector fiber ntau rau yav tom ntej. Qhov zoo ntawm qhov ntom ntom tsuas yog qhov tseem ceeb heev rau kev tso tseg.
Kev txiav txim siab zoo: Kev ntxuav, tshuaj xyuas, thiab tuav
Xaus-fam ntsej muag ua rau MPO ua tsis tiav ntau dua li lwm yam. Ib qho hmoov av ib qho ntawm 1 micron lossis loj dua tuaj yeem txo qis cov teeb liab zoo ntsuas. Tsis zoo li cov khoom sib txuas yooj yim uas kev tshuaj xyuas thiab kev ntxuav yog ncaj nraim, MPO connector fiber ntau yuav tsum tau tshwj xeeb microscopes thiab tu cov cuab yeej tsim los rau ntau hom -fiber ferrule.
Kev tu raws tu qauv tseem ceeb tshaj li cov neeg feem coob paub. Kev tu kom qhuav nrog lint- cov ntaub so tsis pub dawb ua haujlwm rau lub teeb paug. Kev sib kis hnyav yuav xav tau kev ntxuav ntub dej nrog isopropyl cawv, txawm hais tias qhov no ua rau muaj kev pheej hmoo - cov khoom tuaj yeem ua ntau dua rau ntawm qhov chaw ntub dej thiab tuaj yeem khawb cov fibers yog tias tsis ziab kom zoo. Qee cov kws tshaj lij nyiam ntxuav cov cartridges tsim tshwj xeeb rau MPO / MTP ferrules.
IEC 61300-3-35 txhais cov qauv kev huv huv tshwj xeeb rau kev kuaj xyuas lub ntsej muag fiber ntau. Tus qauv tshem tawm cov ntsiab lus los ntawm kev txiav txim siab dhau / tsis ua haujlwm, tshuaj xyuas qhov tsis xws luag hla cov tub ntxhais, cladding, nplaum txheej, thiab cov chaw tiv tauj. Ua raws li tus qauv no rau kev tshuaj xyuas thiab kev kuaj xyuas tom qab kev teeb tsa tshem tawm ntau qhov kev tsis sib haum xeeb txog kev sib txuas zoo.
Kov MPO cables nrog kev saib xyuas ntau dua li qhov koj xav tau muab cov hlua txuas rau tus qauv. Lub multi- fiber ntau ferrule yog qhov tsis yooj yim dua, thiab cov kev taw qhia cov pins puas lossis cov qhov taw qhia yuav ua rau muaj teeb meem kev sib dhos thoob plaws txhua qhov fibers hauv qhov txuas. Khaws cov kaus mom plua plav ntsia kom txog thaum lub sijhawm sib txuas. Khaws cov khoom sib dhos hauv qhov chaw huv, tiv thaiv ib puag ncig. Cov kev coj ua yooj yim no tiv thaiv feem ntau ntawm kev ua tsis tiav.
Ua Kev Xaiv Zoo
Xaiv qhov tsim nyog MPO connector fiber ntau rau ib daim ntawv thov tshwj xeeb yuav tsum tau suav cov fiber ntau suav rau cov kev xav tau ntawm cov transceiver, xaiv hom polish kom raug rau hom fiber ntau, thiab qhia txog poj niam txiv neej kom raug rau txoj kab khiav. Kev yuav khoom yuam kev nyob rau hauv ib qho ntawm cov chaw no ua rau tsis yog -kev sib txuas ua haujlwm lossis cov khoom siv khib nyiab.
Rau kev xa tawm tshiab txhawb nqa 100G thiab siab dua, 8-fiber thiab 16-fiber MPO teeb tsa feem ntau muab kev siv fiber ntau zoo dua li qub 12-fiber hom. Rau 400G SR8, 16-fiber yog qhov kev xaiv meej. Rau 800G, 24-fiber ua rau qhov ceev tshaj plaws, txawm hais tias kev sib raug zoo hauv vaj tse yuav tsum tau muaj pov thawj.
Multimode piv rau ib leeg -hom kev txiav txim siab nyob ntawm qhov deb. OM4 fiber ntau txhawb 100G SR4 mus rau 100 meters - txaus rau feem ntau intra- tsev txuas. Txhua yam ntev dua feem ntau yuav tsum muaj tib hom -, nrog rau tus nqi them nqi sib txuas rau cov khoom sib txuas thiab cov transceivers.
Tus nqi optimization hauv MPO connector fiber ntau xa tawm los ntawm txoj cai -sizing Cheebtsam rau cov kev xav tau tiag tiag. Overspecifying cov neeg tseem ceeb-qib connectors rau cov ntawv thov uas yooj yim poob nyiaj nkim nyiaj. Kev qhia tsis meej rau nruj- pob nyiaj 400G/800G txuas ua rau muaj teeb meem ua haujlwm. Kev nkag siab txog qhov txuas poob suav rau koj qhov tshwj xeeb topology qhia kev xaiv cov khoom tsim nyog.
