MPO Data Center Cabling: 40G–800G Design Guide

Cov qauv tsim muaj kev nyab xeeb tshaj plaws yog: txheeb xyuas qhov optic ua ntej, tom qab ntawd tsim cov cabling nyob ib ncig ntawm nws lub cev interface, txoj kab suav, ncav cuag, polarity, pinning thiab poob peev nyiaj.

Qhov kev sib txawv ntawd tseem ceeb ntawm 40G txog 800G. Cisco cov ntaub ntawv tam sim no, piv txwv li, suav nrog 400G modules nrog MPO-16, MPO-12 thiab duplex LC interfaces, thiab 800G modules nrog dual MPO-12, MPO-16 thiab dual duplex LC kev npaj. Yog li ntawd, daim ntawv qhia ceev yog qhov pib, tsis yog kab lus tshwj xeeb.

40G, 100G, 400G thiab 800G: PMD-rau-Cabling Decision Matrix

Siv cov lus hauv qab no raws li kev npaj siv, tom qab ntawd txheeb xyuas qhov tseeb module datasheet ua ntej xaj cable. Kev ncav cuag thiab cov ntsiab lus txuas tuaj yeem sib txawv los ntawm kev siv.

Rau cov neeg muag khoom- piv txwv tshwj xeeb, piv Cisco's40G QSFP module cov ntaub ntawv, 100G QSFP portfolio, 400G QSFP transceiver cov ntaub ntawv, thiab800G OSFP transceiver data. Cov no yog cov piv txwv, tsis yog universal connector txoj cai.

MPO Data Center Cabling yog dab tsi?

MPO sawv rauMulti-Fiber Push-On. Tsis zoo li ib qho kev sib txuas LC duplex uas nqa ib qho kev xa tawm / tau txais fiber ntau khub, MPO connector terminates ntau fibers hauv ib qho compact interface. Qhov ntawd ua rau nws muaj txiaj ntsig rau ob qho tib si rau kev sib txuas ncaj qha - kev sib txuas ntawm optics thiab rau siab - qhov sib txawv ntawm cov cabling ntawm thaj chaw thaj tsam.

Lub cev MPO tsis tau txais tib yam li MPO transceiver txuas. Ib lub cev ruaj khov tuaj yeem nqa ntau cov fibers ntawm cov vaj huam sib luag thiab tom qab ntawd hloov mus los ntawm cov khoom siv los yog cov khoom sib dhos rau cov khoom siv LC duplex. Hloov pauv, qhov sib npaug ntawm - optics transceiver tuaj yeem txuas ncaj qha mus rau MPO thaj qaum tsis muaj qhov siab -fiber- suav cov pob tw.

MPO vs MTP®

MPO yog lub generic connector interface. MTP® yog US Conec's branded high -kev ua tau zoo MPO connector tsim. US Conec hais tias MTP connectors ua raws li MPO interface qauv thiab tuaj yeem cuam tshuam nrog cov qauv-ua raws li MPO connectors. Rau kev yuav khoom, qhia qhov xav tau interface, suav fiber ntau, polish, pinning thiab kho qhov muag ua ntej; ntxiv MTP® hom kev xav tau tsuas yog thaum qhov project tshwj xeeb hu rau nws. Rau kev sib piv sib sib zog nqus, saib Dimi Fiber'sMTP vs MPO engineering qhiathiab covUS Conec MPO/MTP FAQ.

Active Fibers, Connector Positions thiab Trunk Fiber suav yog txawv

Khaws peb qhov sib cais:

• Active fiber ntau:cov fibers tiag tiag siv los ntawm txoj kab kev kho qhov muag.
• Connector hom:lub cev MPO lossis duplex interface nthuav tawm los ntawm transceiver lossis cable sib dhos.
• Structured cabling puag:yuav ua li cas cov pab pawg neeg mus tas li thiab thauj fibers los ntawm qhov chaw.

Kev lig kev cai SR4 siv plaub kis thiab plaub tau txais fibers, yog li nws xav tau yim fibers active txawm tias nws tau nquag siv ntawm 12-txoj hauj lwm MPO interface. SR8 xav tau 16 active fibers. Lub cev MPO-24, lub sijhawm no, tuaj yeem siv los ua ib qho kev sib sau ua ke yam tsis tau txuas ncaj qha rau hauv 24-fiber transceiver.

Tsim 40G Txuas Los Ntawm PMD, Tsis Yog Qhov Ceev

40G yog ib qho piv txwv muaj txiaj ntsig vim tias tib kab tus nqi tuaj yeem siv lub cev sib txawv heev . 40GBASE-SR4 yog plaub- txoj kab sib luag multimode daim ntawv thov thiab feem ntau siv 12- fiber ntau MPO / MTP interface nrog yim fibers nquag. Los ntawm qhov sib piv, 40GBASE-LR4 nqa plaub lub wavelengths dhau duplex ib hom fiber ntau thiab feem ntau nthuav tawm duplex LC interface.

Yog tias qhov project siv SR4, xyuas cov qib multimode ntsia thiab qhov kev txhawb nqa ncav cuag. Cisco teev 100 m tshaj OM3 thiab 150 m tshaj OM4 rau nws QSFP-40G-SR4. Yog tias qhov project siv LR4, qhov kev txiav txim siab cuam tshuam yog hloov dua siab tshiab OS2 / SMF ncav cuag, txuas polish thiab channel poob. Qhov no yog vim li cas qhov kev thov yuav khoom uas hais tias tsuas yog "40G MPO cable" tsis tiav.

Tsim 100G Txuas los ntawm kev sib cais Parallel thiab Duplex Optics

100G muaj ob qho tib si thaum uas tig mus thiab duplex xaiv. SR4 siv cov kab sib txuas ntau hom kab thiab feem ntau cuam tshuam nrog MPO. PSM4 siv tib qho tib yam - hom fiber ntau thiab tuaj yeem siv MPO. CWDM4 thiab LR4 siv wavelength multiplexing dua duplex ib leeg -hom fiber ntau thiab feem ntau siv LC.

Qhov kev sib txawv no tseem ceeb tshwj xeeb tshaj yog nyob rau hauv brownfield data centers. Ib qho chaw nrog SR4 - taw qhia MPO pob tw tuaj yeem muaj txoj hauv kev ncaj nraim rau qee qhov 100G qhov sib npaug. Ib qho chaw uas muaj zog duplex ib leeg-mode infrastructure tej zaum yuav nyiam CWDM4, FR-chav kawm lossis LR-chav xaiv qhov twg mus txog thiab kev txhawb nqa platform haum rau daim ntawv thov.

Tsim 400G Txuas Ib puag ncig SR8, DR4 thiab FR4 Qhov txawv

400G yog qhov "ceev sib npaug sib npaug" cov kev xav tau dhau los tshwj xeeb.

• 400g SR8:parallel multimode, 16 nquag fibers, feem ntau txuam nrog MPO-16 khoom siv interface.
• 400G DR 4 :sib npaug tib yam - hom, yim active fibers, feem ntau txuam nrog MPO-12 interface.
• 400g FR4:wavelength-multiplexed ib leeg- hom, duplex fiber ntau, feem ntau txuam nrog duplex LC.

Cisco cov ntaub ntawv 400G QSFP tam sim no teev cov kev siv DR4 siv MPO-12 APC nrog 500 m parallel SMF thiab kev siv FR4 siv duplex LC UPC nrog 2 km SMF. Nws qhov dav 400G portfolio kuj muaj SR8 thiab BiDi sib txawv nrog cov khoom sib txawv. Qhov tseeb 400G cable yog li nyob ntawm qhov tseeb transceiver ib feem thiab PMD.

Yog tias QSFP-DD yog ib feem ntawm kev kho vajtse, Dimi Fiber'sQSFP-DD technical overviewtuaj yeem siv los txhawb cov keeb kwm yav dhau los, tab sis cov ntawv teev lus module yuav tsum nyob twj ywm txoj cai kawg rau MDI.

Tsim 800G Txuas Nrog Cov Module Interface hauv tes

800G nce ob txoj kab ceev thiab qhov tshwm sim ntawm qhov kev xav tsis ncaj ncees lawm. Cov piv txwv Cisco OSFP tam sim no qhia tau tias 800GBASE-VR8 thiab 800GBASE-DR8 tuaj yeem siv nrog ob MPO-12 lossis ib qho MPO-16, nyob ntawm qhov module. Cisco kuj tseem muaj OSFP module nqa ob qhov txuas 400GBASE-FR4 dual duplex LC.

Rau qhov hais txog qhov sib npaug 800G modules, Cisco qhia txog APC MPO thaj cords thiab sau tseg tias cov module optical ports tau pinned, yog li cov mating cable yuav tsum tau unpinned. Qhov ntawd yog theem ntawm kev nthuav dav qhov kev yuav khoom yuav tsum tau ntes. "800G MPO" tsis txaus.

MPO-8 vs MPO-12 vs MPO-16 vs MPO-24

Cov txheej txheem cabling hauv paus yuav tsum raug xaiv rau cov cog cog thiab kev npaj tsiv teb tsaws, tsis yog vim muaj tus lej loj dua yav tom ntej - pov thawj.

Rau cov ncauj lus kom ntxaws sib piv ntawm lub cev ruaj khov, kev tawg thiab cov khoom siv - sab kev xaiv, saib Dimi Fiber'sMPO cable hom lus qhia.

OM4 vs OM5 vs OS2 for MPO Cabling

Kev xaiv fiber ntau ua raws li optic thiab ncav cuag qhov yuav tsum tau ua.

OM 4

OM4 tseem yog qhov kev xaiv ua tau zoo rau ntau yam luv luv - mus txog cov ntawv thov multimode sib npaug. Nws tau txais kev txhawb nqa dav dav los ntawm SR-chav kawm optics thiab muaj lub hauv paus loj hlob. Qhov siab tshaj plaws channel nyob deb yuav tsum tseem raug kuaj tawm tsam PMD xaiv thiab txuas kev teeb tsa.

OM 5

OM5 yog dav siv ntau hom fiber ntau. Nws muaj peev xwm ntxiv wavelength tseem ceeb thaum lub tshuab kho qhov muag tau tsim los siv nws; nws tsis tuaj yeem nce qhov ncav cuag ntawm txhua qhov kev sib piv SR daim ntawv thov. Rau kev sib piv ntawm multimode, saib covOM1-OM5 nrug qhia.

OS 2

OS2 yog tus txheej txheem kev npaj xaiv rau ntau ib zaug - hom cov ntaub ntawv chaw txuas, suav nrog rau qhov sib npaug DR-chav kawm thiab duplex FR/LR-chav kawm optics. Nws muab kev yooj yim mus cuag, tab sis nws tsis tshem tawm connector, polish, poob -pob nyiaj los yog transceiver- tus nqi txwv. Rau ib qho - hom cabling sab, saib Dimi Fiber'sOS1 vs OS2 guide.

MPO Polarity, Pinning thiab Keying

Ib qho kev sib txuas MPO tuaj yeem sib koom ua ke thiab tseem qhia txog kev xa cov kab mus rau qhov tsis ncaj ncees lawm tau txais txoj haujlwm. Yog li ntawd, polarity yuav tsum tau tsim nyob rau hauv tag nrho cov channel es tsis yog xaiv los ntawm cov khoom.

Txoj kev A, B, C, U1 thiab U2

ANSI/TIA-568.3-E, tso tawm xyoo 2022, kho qhov muag pom kev-fiber cabling kev taw qhia thiab ntxiv txoj kev tshiab polarity. TIA Fiber Optics Tech Consortium cov ntsiab lus piav qhia txog tsib tus qauv array-raws li txoj kev polarity: A, B, C, U1 thiab U2. A, B thiab C tuaj yeem txhawb nqa array-rau-array teeb liab polarity, thaum U1 thiab U2 tau ntxiv rau array-raws li daim ntawv thov duplex. Cov lus qhia siv tau tsis yog ua rau tsis pom kev rau "Txoj Kev B"; nws yog xaiv ib daim ntawv sau txog qhov kawg-rau-kawg architecture thiab ua txhua lub cev, adapter, cassette, kev hloov pauv thiab thaj qaum ua raws li nws.

Saib covTIA tshaj tawm rau ANSI/TIA-568.3-Ethiab covTIA FOTC technical summaryrau keeb kwm yav dhau. Tej yaam num uas yuav tsum tau ua raws cai yuav tsum siv tus qauv tam sim no nws tus kheej.

Pinned vs Unpinned

MPO mating yuav tsum tau sib dhos pins ntawm ib sab thiab coj cov lus qhia qhov ntawm lwm qhov. Tsis txhob xav tias tag nrho cov trunks lossis transceivers siv tib txoj kev sib deev. Txheeb xyuas txhua qhov interface hauv ib ntus:

Transceiver → thaj qaum → adapter / vaj huam sib luag → pob tw → adapter / vaj huam sib luag → thaj qaum → transceiver

Ib tus pinned - rau - pinned mating tuaj yeem ua rau cov khoom sib txuas puas ntsoog, thaum lub unpinned - rau -unpinned interface tsis tuaj yeem muab cov kev sib txuas uas yuav tsum tau ua. Tam sim no 800G Cisco OSFP cov ntaub ntawv, piv txwv li, qhia meej tias nws MPO module chaw nres nkoj tau pinned thiab lees txais cov kab txuas txuas tsis tau.

Keying tsis yog tag nrho polarity Specification

Txoj kev taw qhia tseem ceeb cuam tshuam rau kev sib txuas ntawm kev taw qhia thiab kev sib tw fiber ntau, tab sis "key-up" lossis "key{1}}down" ib leeg tsis piav qhia txoj kab tiav. Qhia meej hom kab, txoj kev polarity, pinning thiab kawg -mus rau-kawg daim ntawv qhia ua ke.

Xam qhov Optical Loss Budget Ua ntej xaj

Ib qho kev sib txuas tau zoo thiab raug polarized channel tseem tuaj yeem ua tsis tau yog tias qhov poob qis tshaj qhov kev txwv PMD optical.

Npaj channel poob=connector-pair poob + fiber attenuation + splice poob + lwm yam passive poob + engineering margin

Pib nrog qhov siab tshaj plaws kev txhawb nqa channel qhov poob hauv lub transceiver lossis cov qauv siv tau, tom qab ntawd ua haujlwm rov qab. Cisco cov ntaub ntawv 400G QSFP tam sim no, piv txwv li, teev qhov kev txhawb nqa siab tshaj plaws ntawm 3 dB rau nws 400GBASE-DR4 module thiab 4 dB rau nws 400GBASE-FR4 module.

Rau cov keeb kwm yav dhau los ntxiv txog yuav ua li cas nkag mus poob los ntawm cov fiber ntau channel, saib Dimi Fiber'sKev nkag mus poob hauv fiber ntau cov lus qhia.

Piv txwv ua haujlwm: 400G DR4 Structured Link, 120 m

Xav tias ob lub racks yog 120 m sib nrug thiab cov transceivers uas tau xaiv yog Cisco 400GBASE-DR4 modules nrog 3 dB qhov siab tshaj plaws kev txhawb nqa poob. Tus tsim siv OS2, MPO-12 APC cov khoom siv interfaces thiab ib txoj hauv kev uas muaj plaub qhov sib txuas MPO txuas.

Cov txiaj ntsig hauv qab no yogillustrative npaj kev xav, tsis yog universal qauv los yog guaranteed tivthaiv specifications:

• Plaub qhov sib txuas sib txuas ntawm 0.35 dB npaj poob txhua=1.40 dB
• 120 m ntawm fiber ntau ntawm 0.40 dB / km npaj attenuation=0.048 dB
• Tsis muaj splices=0 dB
• Engineering margin=0.50 dB

Npaj channel poob=1.40 + 0.048 + 0 + 0.50=1.948 dB

Tawm tsam 3 dB module txwv, uas tawm li ntawm 1.05 dB ntawm qhov seem tsim headroom. Kev suav tsis ua pov thawj tias cov channel ntsia yuav dhau mus: qhov tseeb cable ntev, kev ua haujlwm txuas ntxiv, siv cov txheej txheem thiab cov txiaj ntsig kev xeem yuav tsum tseem raug txheeb xyuas. Tab sis nws qhia seb lub architecture puas plausible ua ntej yuav khoom. Yog tias tus qauv tsim tib yam xav tau rau 6 lossis yim qhov kev sib txuas ua ke, cov peev nyiaj poob yuav dhau los ua qhov laj thawj kom yooj yim rau txoj hauv kev.

Xaiv lub Physical MPO Architecture

MPO Lub cev Cables

Factory-tawm MPO lub cev muaj txiaj ntsig zoo rau siab - kev sib txuas ntawm qaum qaum ntawm cov txee, thaj chaw faib khoom thiab thaj chaw. Loj lub cev rau tag nrho cov phiaj xwm channel thiab cov tswv yim tsiv teb tsaws tsis yog rau ib qhov chaw nres nkoj transceiver tam sim no.

MPO-rau-LC Cassettes

Cassettes tso cai rau lub siab - qhov ceev MPO lub cev los nthuav qhia duplex LC txuas ze ntawm cov khoom siv. Qhov no tuaj yeem khaws lub cev mus tas li thaum cov khoom siv hloov pauv. Txhua lub cassette thiab adapter ntxiv qhov poob, yog li modularity yuav tsum suav nrog hauv pob nyiaj siv.

Cov kab mob thiab kab tsuag

Cov kev sib dhos sib dhos yog txoj kab -mapping cov khoom, tsis yog pob khoom ntawm fibers xwb. Paub meej tias qhov chaw nres nkoj lub peev xwm breakout, qhov chaw txoj kab kev txiav txim, polarity, connector hom thiab pinning ua ntej xaj. Dimi Fiber ntauMPO breakout cable qhianpog cov ntsiab lus xaiv no kom ntxaws ntxiv.

Direct Connect vs Structured Cabling

Cov kev sib txuas ncaj qha txo cov ntsiab lus mating thiab ua kom yooj yim rau cov nyiaj poob haujlwm. Structured cabling txhim kho patching yooj thiab ua rau txav, ntxiv thiab hloov tau yooj yim dua. ruaj khov, luv taw tes-rau- taw tes txuas yuav tau txais txiaj ntsig los ntawm kev txuas ncaj qha; sib koom txoj hauv kev thiab ib puag ncig reconfigured nquag feem ntau pom zoo cov txheej txheem patching.

Ib 7-kauj ruam MPO Data Center Design Workflow

1. Inventory txhua qhov chaw nres nkoj.Cov cuab yeej sau tseg, chaw nres nkoj ceev, transceiver ntu naj npawb, qhov chaw, qhov chaw, thiab qhov xav tau ncav cuag.
2. Sau qhov tseeb PMD.Hloov cov ntawv sau xws li "400G" nrog SR8, DR4, FR4 lossis cov neeg muag khoom optic tiag tiag.
3. Daim ntawv qhia fiber ntau nruab nrab thiab ncav cuag.Txheeb xyuas OM4 / OM5 / OS2 thiab qhov siab tshaj plaws tau npaj channel ntev.
4. Daim ntawv qhia active fibers thiab MDI.Sau Tx/Rx fibers, connector format, polish, pinning and keying.
5. Xaiv cov txheej txheem cabling architecture.Xaiv Base-8, Base-12, Base-16 lossis Base-24 raws li qhov tsim nyog, ntxiv rau pob tw, cassettes, breakouts thiab hloov dua siab tshiab cov rooj sib txoos.
6. Xam cov nyiaj siv kho qhov muag poob.suav txhua qhov passive tivthaiv thiab reserve engineering margin.
7. Cia lub BOM thiab txoj kev lees txais ua ke.Tsis txhob muab daim ntawv xaj xaj xaj kom txog thaum txoj kev xeem thiab cov txheej txheem dhau / tsis raug.

Yam tsawg kawg nkaus BOM Fields

• fiber ntau thiab suav fiber ntau;
• connector hom ntawm ob qhov kawg;
• txoj kev polarity thiab txoj kab khiav;
• pinned/unpinned configuration;
• kev taw qhia tseem ceeb nyob qhov twg;
• polished kawg;
• qhov ntev thiab lub tsho ntsuas;
• qhov siab tshaj plaws ntawm cov khoom siv ntxiv - qhov yuav tsum tau poob;
• labeling convention;
• Hoobkas thiab teb cov ntaub ntawv xeem.

Installation, Tshuaj xyuas thiab kuaj

Tshawb xyuas ua ntej sib yuav

Tsis txhob xav tias lub kaus mom plua plav txhais tau hais tias lub ntsej muag kawg huv si. Fluke Networks hais tias kev sib txuas tsis sib haum tseem yog qhov ua rau muaj fiber ntau- cuam tshuam txog cov teeb meem thiab kev sim ua tsis tiav thiab pom zoo kom muaj kev tshuaj xyuas - huv - tshuaj xyuas cov txheej txheem. Ntau- fiber ntau txuas ua rau kev qhuab qhia tseem ceeb dua vim tias ib qho kab mob sib kis tuaj yeem cuam tshuam rau ntau txoj kab. Saib Fluke Networks 'fiber ntau paug, ntxuav thiab tshuaj xyuas kev taw qhia.

Tiv thaiv cov Connectors thaum nruab

Ua raws li cov chaw tsim khoom siv cable thiab sib dhos cov kev txwv rau rub nro, khoov vojvoog, tsoo, txoj hauv kev sau thiab kev ntsuas ib puag ncig. Khaws lub kaus mom tiv thaiv kom txog thaum lub connector npaj txhij rau kev soj ntsuam thiab mating.

Siv OLTS thiab OTDR rau cov lus nug sib txawv

Tier 1 kev sim nrog qhov ntsuas qhov muag tsis pom yog siv los txheeb xyuas qhov kawg-rau- xaus qhov poob thiab qhov txuas txuas yooj yim. Kev sim OTDR yog qhov muaj txiaj ntsig zoo rau kev nrhiav cov xwm txheej thiab daws teeb meem kev poob poob. Rau MPO raws, sim txhua qhov xav tau fiber ntau thiab txheeb xyuas qhov polarity; Tsis txhob xav tias ib txoj kab hla dhau ua pov thawj tias tag nrho cov array yog lawm.

Document the Installed Plant

• kab thiab lub cev IDs;
• khib, vaj huam sib luag thiab chaw nres nkoj txoj haujlwm;
• fiber nruab nrab thiab suav;
• polarity thiab pinning;
• raws li - tsim txoj kev;
• ntsuas qhov poob los ntawm fiber ntau;
• hnub xeem thiab xeem- siv cov txheej txheem siv.

Migration: 40G / 100G rau 400G / 800G

Txoj kev npaj tsiv teb tsaws chaw zoo tiv thaiv rov siv tau txuas mus tas li yam tsis tau yuam cov qub qub mus rau optics tshiab.

Reusing Base-12

Lub hauv paus uas twb muaj lawm -12 lub cev tseem tuaj yeem muaj txiaj ntsig zoo. Lawv tuaj yeem txhawb nqa ob daim ntawv thov los ntawm cov ntawv xov xwm, pub yim - nquag- fiber ntau cov kab sib txuas los ntawm cov khoom siv hloov dua siab tshiab, lossis tseem nyob hauv kev pabcuam thaum Base-16 tshiab txoj hauv kev ntxiv tsuas yog qhov 16-active-fiber khoom interfaces xav tau lawv.

Txav mus rau 16 Active Fibers

Yog tias daim ntawv qhia kev muaj xws li SR8, VR8 lossis DR8-chav kawm interfaces, qauv 16-active-fiber yuav tsum tau qhia meej. Tsis txhob xav tias txoj hauv kev 12-fiber tuaj yeem ncaj qha los ua ib qho khoom siv 16-fiber txuas. Cov lus teb nyob ntawm seb lub hom phiaj siv MPO-16, dual MPO-12 lossis lwm qhov sib txawv.

Brownfield vs Greenfield

Rau cov chaw brownfield, tshawb xyuas cov hom fiber ntau, MPO hom, polarity, connector kev ua tau zoo, txoj kev muaj peev xwm thiab cov keeb kwm kev xeem uas twb muaj lawm ua ntej hloov cable. Rau cov chaw greenfield, tsim los ntawm ntau qhov tseeb - tiam optics roadmap thiab khaws cia txoj hauv kev thiab patching yooj qhov twg yav tom ntej MDI tsis paub meej.

Common MPO Design mistakes

• Kev yuav los ntawm ceev daim ntawv lo:"400G" los yog "800G" tsis yog ib qho kev ua tiav cable.
• Piv txwv tias txhua qhov siab -speed optics xav tau MPO:wavelength-multiplexed duplex optics siv LC.
• Kho cov fibers ntau dua li yuav ua rau yav tom ntej - pov thawj:muaj peev xwm tsis muaj txoj kev hloov pauv tuaj yeem dhau los ua fiber ntau.
• Mixing polarity Cheebtsam:cov khoom siv ib leeg siv tau tseem tuaj yeem tsim qhov kawg tsis raug - mus rau - daim ntawv qhia txoj kab kawg.
• Ignoring pinning:mechanical compatibility yuav tsum tau kuaj xyuas ntawm txhua qhov MPO mating point.
• Hla kev xam poob:ib lub cassette ntxiv los yog vaj huam sib luag tuaj yeem haus qhov seem ntawm qhov muag pom.
• Ordering cable ua ntej optics yog khov:qhov tseeb ib ntus yog optics ua ntej, cabling thib ob.

Npaj rau 1.6T yam tsis xav txog qhov txuas

Yav tom ntej- kev pov thawj yuav tsum tsom rau cov txheej txheem rov siv tau dua li kev kwv yees ib hom ntawv txuas. Raws li lub Yim Hli 21, 2026, IEEE P802.3dj Draft 3.2 tau ua tiav nws qhov thib ob Standards Association recirculation pov npav, thiab cov neeg ua hauj lwm tab tom npaj los txiav txim siab D3.2 lus nyob rau lub Cuaj Hli Ntuj 2026. Cov hauj lwm npog 200 Gb/s, 400 Gb/s, 800 Gb/t/s 1 cab. nqe lus yuav tsum yog hnub tim-stamped thiab rechecked raws li qhov project nce mus.

Cov xwm txheej tam sim no tuaj yeem tshawb xyuas los ntawmIEEE 802.3 daim ntawv tshaj tawmthiab covTshaj li 400 Gb/s Ethernet ua haujlwm-force archive.

Kom txog rau thaum lub neej yav tom ntej PMD raug xaiv, cov txiaj ntsig tseem ceeb yog txhawm rau khaws txoj hauv kev muaj peev xwm, khaws cov khoom faib tawm, sau cov nroj tsuag, zam cov ntsiab lus hloov pauv tsis tsim nyog thiab txheeb xyuas qhov optic yav tom ntej ua ntej cog lus rau lub hauv paus tshiab txuas mus tas li.