Fiber polarity yog ib qho ntawm cov ntsiab lus tsis pom zoo tshaj plaws hauv qhov txuas fiber ntau optic - thiab ib qho kev ntxhov siab tshaj plaws thaum nws mus tsis ncaj ncees lawm. Ib lub cable tuaj yeem huv si, cov khoom sib txuas tuaj yeem dhau los soj ntsuam, thiab qhov muag tsis pom kev tuaj yeem ntsuas hauv spec, tab sis qhov txuas tseem tsis kam tuaj. Feem ntau, cov hauv paus ntsiab lus yog qhov yooj yim: qhov kis ntawm ib lub cuab yeej tsis ncav cuag qhov tau txais ntawm lwm qhov.
Phau ntawv qhia no hais txog yuav ua li cas fiber ntau polarity ua hauj lwm nyob rau hauv duplex thiab MPO / MTP systems, qhov sib txawv ntawm polarity txoj kev A, B, C, U1, thiab U2, thiab yuav ua li cas kuaj thiab tiv thaiv Tx / Rx mismatches thaum lub sij hawm installation los yog txij nkawm.
Teb ceev:Fiber polarity txhais tau hais tias npaj fiber ntau strands kom txhua lub transmitter (Tx) txuas mus rau qhov tseeb receiver (Rx) ntawm qhov opposite kawg. Hauv kev sib txuas duplex, qhov no feem ntau xav tau A-rau-B thaj qaum. Hauv MPO / MTP systems, polarity yog txiav txim los ntawm lub cev cable hom, cassette tsim, adapter orientation, thiab thaj qaum configuration ua hauj lwm ua ke raws li ib tug matched system.
Dab tsi yog Fiber Polarity hauv Fiber Optic Cable?
Fiber polarity piav qhia txog yuav ua li cas cov fibers kho qhov muag tau teeb tsa kom cov transmitters thiab receivers txuas kom raug hla ib qhov txuas. Nyob rau hauv ib qho kev sib txuas fiber ntau, lub transmitter (Tx) ntawm ib lub cuab yeej yuav tsum ncav cuag tus txais (Rx) ntawm cov khoom sib txawv. Yog tias Tx txuas rau Tx, lossis Rx txuas rau Rx, cov ntaub ntawv tsis tuaj yeem ntws.
Hauv kev sib txuas ntawm ob lub fibers, ob lub fibers yog siv - ib lub tsheb khiav hauv txhua qhov kev taw qhia. Qhov no yog ncaj nraim hauv luv luvfiber optic thaj qaum, tab sis nws yuav nyuaj dua thaum cov channel suav nrog thaj vaj huam sib luag, adapters, cassettes, lub cev cables, thiabMPO / MTP connectors. Txhua feem hauv txoj kev tuaj yeem cuam tshuam rau qhov kawg Tx / Rx alignment.
Vim li cas Fiber Polarity Matters hauv Duplex Fiber Txuas
Ib tug duplex fiber txuas yog tsim los rau kev sib txuas lus bidirectional. Ib qho strand handles kis; lwm tus tuav tau txais. Kev sib raug zoo polarity yuav tsum tuav ntawm qhov kawg mus rau qhov kawg:
- Ntaus A Tx txuas rau Ntaus B Rx.
- Ntaus B Tx txuas rau Ntaus A Rx.
Thaum qhov kev sib raug zoo no tawg, cov tsos mob tuaj yeem ua rau tsis meej pem. Tus kws tshaj lij yuav pom lub ntsej muag huv huv thiab siv taupoob poobnyeem, tsis tau qhov hloov chaw nres nkoj nyob qis qis los yog transceiver qhia tsis tau txais cov teeb liab. Ua ntej hloov cov transceivers lossis re-tu cov connectors, nws tsim nyog xyuas seb txoj kev Tx thiab Rx puas raug hla lawm.
Tias yog vim li cas polarity yuav tsum tau npaj ua ntej kev teeb tsa, txheeb xyuas thaum kuaj, thiab sau tseg thaum qhov txuas nyob.
A-rau-B vs A-rau-A Fiber Patch Cords: Qhov txawv yog dab tsi?
Duplex patch cords yog cim los ntawm fiber ntau txoj haujlwm - feem ntau sau npe A thiab B. Ob qhov kev teeb tsa feem ntau yog A-rau-B thiab A-rau-A, thiab kev sib xyaw ua ke yog ib qho ntawm feem ntau ua rau Tx / Rx teeb meem hauv thaj teb.
A-rau-B Duplex Patch Cord (Crossover)
Ib qho A-rau-B thaj qaum hla ob txoj haujlwm fiber ntau ntawm ib kawg mus rau lwm qhov. Txoj hauj lwm A ntawm ib lub connector tuaj txog ntawm txoj hauj lwm B ntawm qhov opposite connector. Qhov kev hla no ua kom lub Tx sab ntawm ib lub cuab yeej ncav cuag Rx sab ntawm cov khoom sib txawv, uas yog qhov feem ntau cov qauv kev sib txuas yuav tsum tau.
Rau cov khoom siv ib txwm siv-rau- thaj- vaj huam sib luag lossis hloov- mus rau - hloov duplex txuas, A- rau -B yog tus qauv qub.
A-rau-A Duplex Patch Cord (Ncaj-Los ntawm)
Ib qho A-rau-Ib txoj hlua txuas ua tib txoj haujlwm fiber ntau los ntawm qhov kawg mus rau qhov kawg - txoj hauj lwm A nyob ntawm txoj hauj lwm A. Nws tsis ua txoj haujlwm crossover. A-rau-Ib txoj hlua yog siv rau hauv cov txheej txheem polarity tshwj xeeb lossis kev tsim qauv uas qhov kev sib tw tshwm sim nyob rau lwm qhov hauv cov channel (xws li hauv lub tshuab luam ntawv lossis lub cev). Siv ib qho tsis nkag siab txog kev tsim channel tag nrho tuaj yeem qhia qhov tseeb polarity mismatch koj tab tom sim zam.
Technician tswv yim:ObLC duplexpatch cords tuaj yeem saib lub cev zoo ib yam - tib lub txuas, tib hom fiber ntau, tib lub tsho xim - tab sis muaj qhov sib txawv polarity. Nco ntsoov xyuas seb lub qaum yog A-rau-B lossis A-rau-A ua ntej patching. Cov cim feem ntau yog luam tawm ntawm lub khau raj txuas lossis lub tsho cable.
MPO/MTP Polarity: Vim li cas Ntau -Fiber Systems yog qhov nyuaj dua
MPO thiab MTP connectors nqa ntau fibers - feem ntau 8, 12, los yog 24 - nyob rau hauv ib lub ferrule. Lawv tau dav siv nyob rau hauv cov ntaub ntawv chaw teeb tsa cabling vim lawv txhawb siab - qhov sib txuas ntawm lub cev sib txuas, cov kab ntawv xov xwm -raws li kev tawm tsam, thiab txoj kev tsiv teb tsaws mus rau qhov nrawm dua. Rau cov ncauj lus kom ntxaws sib piv ntawm ob tus qauv txuas, saib qhov noMTP vs MPO xaiv phau ntawv qhia.
Polarity nyob rau hauv MPO systems yog ntau nyuaj vim hais tias ob peb Cheebtsam cuam tshuam los txiav txim qhov kawg Tx / Rx mapping:
- MPO / MTP lub cev cableHom (Type A, B, lossis C)
- Connector tseem ceeb orientation (tseem ceeb nce los yog key down)
- Txiv neej los poj niam pinning
- Cassette lossis module sab hauv
- Adapterntaus ntawv (key-up-to-key-up los yog key-up-rau-key-down)
- Duplex thaj qaum polarity ntawm txhua qhov kawg
- Seb daim ntawv thov siv parallel optics lossis duplex breakout
Txhua feem yuav tsum ua raws li txoj kev xaiv polarity. Ib qho tsis sib haum xeeb - ib lub tshuab luam ntawv tsis raug, ib qho tsis ncaj ncees lawm qaum - tuaj yeem ua txhaum txoj kev Tx/Rx hla tag nrho cov channel.
MPO Hom A, Hom B, thiab Hom C Lub Cev Cables piav qhia
Cov haujlwm fiber ntau hauv MPO lub cev cable txiav txim siab seb qhov polarity yog nqa los ntawm qhov txuas. Peb lub cev qauv hom, txhais nyob rau hauv lubTIA-568.3-E cabling txuj, yog:
Ntaus A - Ncaj-Los ntawm
Hauv hom A lub cev, txoj haujlwm fiber ntau 1 ntawm ib kawg tuaj txog ntawm txoj haujlwm 1 ntawm qhov kawg, txoj hauj lwm 2 ntawm txoj hauj lwm 2, thiab lwm yam. Lub connector ntawm ib kawg yog qhov tseem ceeb -up; lwm qhov kawg yog qhov tseem ceeb -down. Qhov no zoo li intuitive, tab sis vim hais tias tsis muaj crossover nyob rau hauv lub cev, lub polarity flip yuav tsum tshwm sim nyob rau lwm qhov - feem ntau los ntawm ib tug txawv thaj qaum hom ntawm ib kawg ntawm lub channel. Cov kws tshaj lij hauv teb ua haujlwm nrog Txoj Cai A yuav tsum tswj hwm ntau tshaj li ib txoj hlua khi thiab daim ntawv lo raws li.
Hom B - Rov qab
Hauv hom B lub cev, txoj haujlwm fiber ntau yog thim rov qab kawg - mus rau - kawg: txoj hauj lwm 1 daim duab qhia chaw rau txoj hauj lwm 12 (hauv 12- fiber ntau MPO), txoj hauj lwm 2 daim duab qhia chaw mus rau txoj hauj lwm 11, thiab lwm yam. Ob lub connectors yog qhov tseem ceeb -up. Qhov kev thim rov qab no feem ntau tso cai rau tus qauv A-rau-B duplex thaj qaum ntawm ob qho kawg, uas ua rau kev ua haujlwm yooj yim ntawm lub vaj huam sib luag. Hom B trunks muaj nyob rau hauv cov txheej txheem cabling ib puag ncig thiab yog lub hauv paus rau Txoj Kev B, U1, thiab U2.
Hom C - Pair-Flipped
Hauv hom C lub cev, cov kab sib txuas uas nyob ib sab yog flipped: txoj hauj lwm 1 daim duab qhia chaw mus rau txoj hauj lwm 2, txoj hauj lwm 2 daim duab qhia chaw rau txoj hauj lwm 1, txoj hauj lwm 3 daim duab qhia chaw mus rau txoj hauj lwm 4, thiab lwm yam. Cov khub no -theem crossover ua rau Hom C yooj yim rau daim ntawv thov duplex vim lub cev nws tus kheej tuav lub flip. Txawm li cas los xij, cov khub no-kev qhia tshwj xeeb tuaj yeem txwv qhov yooj yim thaum tsiv mus rau qhov sib npaug ntawm qhov sib txuas uas siv tag nrho cov fibers ib txhij es tsis yog hauv cov khub duplex.
Rau kev pab xaiv ntawm pob tw thiab breakout configurations, saib qhov noqhia rau MPO cable hom.
Txoj kev Polarity A, B, C, U1, thiab U2 piv
CovANSI/TIA-568.3-E tus qauvpiav qhia tsib txoj hauv kev polarity. Txhua txoj hauv kev txhais cov kab ke ua tiav - hom pob tw, cassette tsim, adapter configuration, thiab thaj qaum polarity yuav tsum sib phim. Tus txheej txheem qhia meej meej tias txoj kev sib txawv polarity tsis cuam tshuam thiab yuav tsum tsis txhob muab sib xyaw rau hauv tib lub channel.
| Txoj kev | Hom Lub Cev | Core tswvyim | Main Advantage | Kev txwv tseem ceeb |
|---|---|---|---|---|
| A | Hom A (ncaj-los ntawm) | Fiber txoj haujlwm khaws cia los ntawm lub cev; flip tshwm sim ntawm thaj cord lossis cassette | Yooj yim daim ntawv qhia lub cev | Tej zaum yuav xav tau ntau hom patch cord ntawm qhov xaus |
| B | Hom B (rov qab) | Fiber txoj haujlwm thim rov qab kawg - mus rau - xaus rau hauv lub cev | Txuj A-rau-B thaj qaum ntawm ob qho kawg hauv ntau qhov qauv | Cassette orientation thiab labeling yuav tsum tau ua tib zoo tswj |
| C | Hom C (pair -flipped) | Cov kab mob sib kis tau hloov mus rau hauv lub cev | Lub cev tes tuav khub crossover; huv si rau duplex txuas | Tsis tshua muaj kev hloov pauv rau kev sib txuas ntawm optics tsiv teb tsaws |
| U1 | Hom B | Universal txoj kev rau array -raws li duplex channels | Tib yam khoom thiab thaj qaum hom ntawm ob qho kawg | Yuav tsum tau sib phim U1 cassettes hla cov channel |
| U2 | Hom B | Universal txoj kev nrog txawv cassette hloov logic | Txhawb nqa duplex thiab qee qhov kev tsim tawm | Yuav tsum tau sib phim U2 Cheebtsam; tsis hloov pauv nrog U1 |
Txoj Kev A Polarity: Ncaj-Los ntawm MPO Trunk
Txoj Kev A siv hom A ncaj nraim - los ntawm lub cev. Vim hais tias lub cev khaws cia cov haujlwm fiber ntau, Tx / Rx crossover yuav tsum tau qhia lwm qhov - feem ntau los ntawm cov kab sib txawv ntawm ib qho kawg ntawm cov channel, lossis los ntawm cov xov tooj cua. Qhov no ua haujlwm zoo hauv cov tshuab tsim nyob ib puag ncig nws, tab sis nws yuav tsum tau ua tib zoo sau npe. Yog tias tus kws tshaj lij rub cov hlua khi tsis raug los ntawm qhov khoom seem, qhov txuas tuaj yeem ua tsis tiav txawm tias lub cable zoo li raug los ntawm pem hauv ntej ntawm lub vaj huam sib luag.
Txoj Kev B Polarity: thim rov qab MPO lub cev
Txoj Kev B siv hom B rov qab lub cev, uas tso cai rau A- mus rau -B duplex thaj qaum ntawm ob qho kawg hauv ntau lub tshuab luam ntawv -. Qhov kev ua haujlwm yooj yim ntawm lub vaj huam sib luag yog qhov laj thawj tseem ceeb ntawm Txoj Kev B yog dav siv nyob rau hauv cov ntaub ntawv chaw teeb tsa cabling. Kev lag luam tawm -tawm yog tias cov cassettes thiab adapters yuav tsum tau teev thiab ntsia kom raug - cassette tsim los rau txoj kev A yuav tsis tsim polarity raug nyob rau hauv txoj kev B channel.
Txoj Kev C Polarity: Pair -Flipped MPO Lub cev
Txoj Kev C siv hom C khub -flipped trunk. Lub cev ua haujlwm txhua tus khub sib tw sib tw sab hauv, uas tuaj yeem ua kom yooj yim cassette thiab thaj qaum xaiv rau cov ntawv thov duplex. Txawm li cas los xij, vim hais tias khub -flipped mapping yog optimized rau duplex khub es tsis puv -array parallel kis tau tus mob, Txoj kev C tej zaum yuav tsis tshua haum rau tes hauj lwm npaj tsiv mus rau 400G los yog 800G parallel optics interfaces uas tsav tag nrho fibers ib txhij.
Design note:Rau kev ruaj ntseg duplex-tsuas yog cov tes hauj lwm uas tsis muaj kev npaj mus rau qhov sib npaug optics, Txoj Kev C yog qhov kev xaiv tsim nyog. Rau ib puag ncig uas yuav txav mus rau siab dua -MPO ceev-raws li transceivers, paub meej tias txoj kev tsiv teb tsaws chaw ua ntej ua qauv ntawm ib khub -flipped trunk design.
Txoj Kev U1 thiab U2: Universal Polarity rau Niaj Hnub No Cov Ntaub Ntawv
U1 thiab U2 yog universal polarity txoj kev qhia hauv ANSI/TIA-568.3-E kho dua. Ob leeg yog tsim nyob ib ncig ntawm hom B pob tw thiab A-rau-B thaj qaum, tab sis lawv siv cov cassette sib txawv los yog cov qauv hloov pauv kom ua tiav Tx / Rx kev sib raug zoo.
Qhov zoo tshaj plaws ntawm U1 thiab U2 yog kev ua haujlwm tsis sib xws: ob qhov kawg ntawm cov channel siv tib hom kab hlua, thiab lub kaw lus tsim los txo qhov tsis meej pem thaum txav, ntxiv, thiab hloov. Rau kev tsim cov ntaub ntawv tshiab, cov txheej txheem no tsim nyog ntsuas vim tias lawv tau tsim nrog scalability thiab thaj chaw sib xws hauv siab. Txawm li cas los xij, tag nrho cov khoom siv - pob tw, cassettes, adapters, thiab thaj cords - yuav tsum tau muab los ntawm U1 lossis U2 system. U1 thiab U2 Cheebtsam tsis sib hloov ntawm ib leeg.
Yuav ua li cas xaiv txoj cai polarity rau MPO / MTP Cabling
Rau Yooj Yim Duplex Khoom Txuas Txuas
Standard A-rau-B duplexpatch kabyog cov tswv yim default. Ua ntej xav tias qhov txuas yog lawm, paub meej tias qhov transceiver Tx/Rx orientation thiab thaj chaw nres nkoj chaw nres nkoj. Qee cov transceivers thim rov qab qhov xav tau Tx / Rx txoj haujlwm.
Rau MPO-rau-LC Cassette Links
Xaiv ib txoj kev polarity thiab siv nws tsis tu ncua hla lub pob tw, cassettes, adapters, thiab thaj qaum. Tsis txhob sib tov Method A cassettes nrog Method B trunks los yog vice versa. Thaum xajMPO breakout cables, paub meej tias daim ntawv qhia breakout sib phim txoj kev xaiv polarity.
Rau Data Center Structured Cabling
Ua ntej tshaj qhov rov ua dua thiab cov ntaub ntawv. Ib txoj kev polarity qhov twg ob qho tag nrho siv tib hom kab hlua, qhov twg cov cassettes zoo ib yam ntawm ob qho kawg, thiab qhov twg daim ntawv lo tsis paub meej yuav txo qhov yuam kev hauv lub neej ntawm kev teeb tsa. Txoj Kev B, U1, thiab U2 nyiam ua tau zoo ntawm cov qauv no.
Rau yav tom ntej Parallel Optics thiab 400G / 800G Migration
Yog tias cov kab ke txuas txuas tom qab tuaj yeem txhawb nqa qhov sib npaug ntawm qhov sib txuas - 400G-SR8, 800G, lossis ntau- txoj kab kev sib tsoo - txoj kev polarity yuav tsum raug xaiv ua ntej yuav cov pob tw thiab cov ntawv kaw lus. Ib qho qauv tsim uas ua haujlwm rau niaj hnub no cov chaw nres nkoj LC duplex tej zaum yuav tsis haum rau tag kis MPO- cov khoom siv chaw nres nkoj. Cov txheej txheem uas cia siab rau khub-flipping (Method C) yuav xav tau rov-cabling thaum lub network txav mus rau qhov sib txuas sib txuas.
Rau Breakout Applications
Breakout daim ntawv thov txuas ib lub siab -MPO chaw nres nkoj mus rau ntau qhov qis dua -ceev duplex ports. Polarity nyob rau hauv cov xwm txheej no yog ob qho tib si teeb meem cabling thiab qhov teeb meem chaw nres nkoj. Ua ntej xa tawm, paub meej tias hom transceiver breakout, MPO fiber ntau txoj hauj lwm, duplex chaw nres nkoj naj npawb, thaj qaum polarity, thiab hloov / server chaw nres nkoj mapping. Rau kev taw qhia txog kev xaiv cov kab hluav taws xob tawg, saib qhov noMPO breakout cable qhia.
Feem ntau Fiber Polarity yuam kev thiab yuav ua li cas zam lawv
yuam kev 1: Piv txwv tias tag nrho Duplex Patch Cords yog tib yam
Ob lub LC duplex thaj cords tuaj yeem zoo ib yam hauv hom txuas, hom fiber ntau, thiab cable ntev tab sis muaj qhov sib txawv polarity - ib qho A- txog -B, lwm yam A - rau -A. Xaiv qhov tsis ncaj ncees lawm los ntawm cov khoom sib xyaw ua ke yog ib qho ntawm qhov ua yuam kev tshaj plaws. Khaws A-rau-B thiab A-rau-Ib qho khoom lag luam sib cais thiab sau npe kom meej.
Qhov yuam kev 2: Sib xyaw cov khoom siv los ntawm cov txheej txheem sib txawv
Txoj kev A, B, C, U1, thiab U2 yog ua tiav cov txheej txheem - theem tsim. Hloov Txoj Kev A cassette nrog Method B cassette - lossis ntxig hom C lub cev rau hauv Txoj Kev B channel - yuav ua rau txoj kev Tx/Rx. Tom qab ib qho kev sib pauv khoom, yog tias qhov txuas tsis ua haujlwm, xyuas seb qhov hloov pauv puas haum rau txoj kev teeb tsa polarity ua ntej tshawb xyuas lwm yam ua rau.
Yuam kev 3: Kho qhov Dead Link raws li qhov teeb meem poob
Qhov yuam kev polarity ua rau qhov txuas tuag txawm tias thaum twgpoob poobyog nyob rau hauv spec. Cov tsos mob feem ntau yog Tx teeb nyob rau ntawm ib qho kawg tab sis tsis muaj Rx nyeem ntawv ntawm lwm tus - lossis qhov chaw hloov pauv uas nyob qis qis txawm tias lub ntsej muag huv si. Yog tias qhov kev xeem poob dhau lawm tab sis qhov txuas tsis tuaj, tshawb xyuas Tx/Rx mapping ua ntej rov- ntxuav lossis hloov kho vajtse.
yuam kev 4: Tsis quav ntsej Cassette Internal Wiring
MPO-rau-LC cassettes muaj cov kev hloov hauv fiber ntau. Sab pem hauv ntej - vaj huam sib luag LC chaw nres nkoj tus naj npawb tsis ib txwm qhia rau koj tias MPO fiber ntau txoj haujlwm nws daim ntawv qhia rau. Thaum daws teeb meem, siv cov chaw tsim khoom cov ntaub ntawv los taug qab cov duab kos sab hauv es tsis yog qhov chaw nres nkoj 1 ntawm sab xub ntiag sib raug rau txoj hauj lwm 1 ntawm MPO.
yuam kev 5: Mating APC thiab UPC Connectors
Polarity tsis yog qhov teeb meem ntawm lub cev sib xws nkaus xwb.APC (lub cev sib cuag)thiab UPC (ultra lub cev tiv tauj) cov khoom sib txuas muaj qhov sib txawv ntawm lub ntsej muag geometry. Mating APC connector nrog UPC adapter - lossis rov qab - tuaj yeem ua rau ob qho tib si nto thiab ua rau lub teeb liab tsis zoo. APC connectors feem ntau raug txheeb xyuas los ntawm lawv cov xim ntsuab coding.
yuam kev 6: Tsis muaj ntaub ntawv
Yog tias qhov polarity tsis tau sau tseg, txhua qhov kev saib xyuas yav tom ntej yuav dhau los ua kev kwv yees. Nyob rau hauv siab - ib puag ncig ceev nrog nquag txav, ntxiv, thiab kev hloov pauv, cov ntaub ntawv tsis muaj polarity ua rau muaj kev daws teeb meem rov qab thiab tiv thaiv tsis tau. Sau cov txheej txheem polarity, lub cev hom, hom cassette, hom kab kab, thiab chaw nres nkoj daim ntawv qhia rau txhua qhov channel.
Yuav ua li cas kuaj thiab teeb meem Fiber Polarity yam xyuam xim
Thaum qhov sib txuas ntawm fiber ntau tsis tuaj, ib txoj hauv kev ua kom tsis txhob siv sijhawm. Ua haujlwm los ntawm cov kauj ruam no kom ua tiav.
Kauj Ruam 1: Txheeb xyuas txoj kev npaj siab Polarity
Pib nrog cov ntaub ntawv tsim. Txiav txim siab seb cov channel puas yog raws li Txoj Kev A, B, C, U1, lossis U2. Yog tias tsis muaj cov ntaub ntawv pov thawj, tshuaj xyuas cov ntawv cim npe, cov naj npawb ntawm cov chaw tsim khoom, thiab cov cim kab hauv lub cev.
Kauj Ruam 2: Txheeb xyuas Patch Cord Polarity
Txheeb xyuas seb cov kab hluav taws xob duplex ntawm ob qhov kawg yog A-rau-B lossis A- rau-A. Ib txoj hlua tsis raug ntawm ib qho kawg thim rov qab tag nrho Tx / Rx txoj kev.
Kauj Ruam 3: Tshawb xyuas MPO Lub Cev thiab Cassette Compatibility
Xyuas kom meej tias MPO lub cev hom, hom cassette, adapter key orientation, thiab chaw nres nkoj naj npawb tag nrho yog nyob rau tib polarity system. Ua tib zoo mloog cov cassettes uas tej zaum yuav tau hloov los yog hloov thaum lub sij hawm tu.
Kauj ruam 4: Txheeb xyuas qhov Active Transmit Sab
Kev ceeb toom kev nyab xeeb:Tsis txhob saib ncaj qha rau hauv qhov chaw nres nkoj fiber ntau lossis qhov txuas kawg. Optical hluav taws xob - tshwj xeeb tshaj yog nyob rau ntawm 1310 nm thiab 1550 nm wavelengths - yog qhov pom ntawm qhov muag thiab tuaj yeem ua rau lub qhov muag puas. CovUS Occupational Safety and Health Administration (OSHA)cais cov hluav taws xob laser raws li qhov chaw ua haujlwm muaj kev phom sij uas xav tau kev tswj kom tsim nyog. Siv lub teeb pom kev tsis pom kev, lub ntsuas hluav taws xob nyob, lossis ntsuas lub ntsuas hluav taws xob kho qhov muag txhawm rau txheeb xyuas cov khoom siv hluav taws xob muaj kev nyab xeeb.
Kauj Ruam 5: Test End-mus rau-End Continuity
Siv cov cuab yeej ntsuas fiber ntau kom paub meej tias txhua txoj kev xa mus txog qhov xav tau qhov chaw. Rau MPO systems, sim txhua txoj haujlwm fiber ntau ntawm tus kheej raws li txoj kev xaiv polarity.
Kauj Ruam 6: Sau daim ntawv pov thawj tseeb
Tom qab daws qhov teeb meem, hloov kho cov ntaub ntawv txuas. suav nrog thaj vaj huam sib luag chaw nres nkoj tus lej, tus lej xov tooj, tus ID lub cev, txoj hauv kev polarity, thiab thaj qaum hom ntawm txhua qhov kawg.
Polarity Troubleshooting Ceev Reference
| Cov tsos mob | Polarity Ua Tau | Yuav kuaj xyuas dab tsi |
|---|---|---|
| Txuas lub teeb tawm ntawm ob sab | Tx/Rx reversed ntawm ob qhov kawg | Txheeb xyuas A-rau-B thaj qaum ntawm txhua qhov kawg |
| Tx teeb tam sim no tab sis tsis muaj Rx nyeem ntawv nyob deb kawg | Tx yog ncav Tx es tsis txhob Rx | Xyuas thaj qaum hom polarity; sim flipping LC duplex clip |
| Txuas tsis tau tom qab hloov cov cassette | Tshiab cassette yog los ntawm txoj kev sib txawv polarity | Paub meej tias cassette qhov sib tw hom pob tw thiab ntsia txoj kev |
| Txuas ua haujlwm tom qab flipping LC connector | Duplex polarity tsis sib haum | Txheeb xyuas qhov tseeb thaj qaum hom; hloov kho cov ntawv teev npe |
| MPO channel ua tsis tiav tom qab sib pauv pob tw | Hloov lub cev yog hom MPO sib txawv (A / B / C) | Xyuas kom tseeb tias lub cev hom sib phim rau channel txoj kev polarity |
Yuav ua li cas kom paub meej ua ntej xaj Fiber Polarity Cheebtsam
Polarity tsis ua haujlwm feem ntau tshwm sim ntawm theem kev yuav khoom. Ua ntej xaj pob tw, cassettes, patch cords, lossis adapters, paub meej cov kev txwv hauv qab no kom ntseeg tau tias txhua yam khoom ua haujlwm ua ke raws li qhov sib tw:
- Txoj kev polarity- A, B, C, U1, lossis U2
- MPO lub cev hom- Hom A, Hom B, lossis Hom C (yuav tsum phim txoj kev polarity)
- Fiber suav- 8, 12, lossis 24 fibers rau MPO connector
- Connector poj niam txiv neej- txiv neej (nrog pins) lossis poj niam (tsis muaj pins)
- Kev taw qhia tseem ceeb- tus yuam sij- nce lossis qhov tseem ceeb - nqes ntawm txhua qhov kawg
- Hom ntsej muag kawg- APC lossis UPC (tsis txhob sib tov)
- Cassette Internal Mapping- yuav tsum phim txoj kev polarity
- Duplex thaj qaum polarity- A-rau-B lossis A-rau-A, raws li txoj kev xav tau
- Fiber hom- ib leeg -mode orMultimode (OM1-OM5)
Ordering Cheebtsam yam tsis tau txheeb xyuas cov kev txwv no tiv thaiv txoj kev teeb tsa polarity yog ib qho ntawm feem ntau qhov chaw ntawm post-installation polarity failures.
Cov kev coj ua zoo tshaj plaws los tiv thaiv cov teeb meem Fiber Polarity hauv Data Center Cabling
Kev tswj zoo polarity yog kev qhuab qhia tsim, tsis yog kev kho qhov chaw. Cov kev coj ua hauv qab no txo cov polarity yuam kev thoob plaws lub neej ntawm kev teeb tsa.
Standardize ntawm ib txoj kev polarity ib channel tsim. Tsis txhob sib xyaw cov txheej txheem tshwj tsis yog tias muaj cov ntaub ntawv pov thawj, tsim kho vim li cas. Thaum ua tau, xaiv ib txoj hauv kev uas siv tib txoj hlua txuas ntawm ob qho kawg ntawm cov channel - qhov no tshem tawm ib qho ntawm qhov ua yuam kev tshaj plaws.
Yuav cov trunks, cassettes, adapters, thiab patch cords raws li ib tug matched system los ntawm ib tug zoo xws li cov khoom kab. Hla- kev sib xyaw ntawm cov neeg muag khoom yog technically ua tau tab sis ua rau muaj kev pheej hmoo ntawm kev tsis sib haum nrog cov xaim sab hauv lossis cov ntawv sau npe. Rau kev taw qhia raufiber ntau optic cable installationcov kev coj ua zoo tshaj plaws, npaj kev txiav txim siab polarity rau hauv kev teeb tsa kev ua haujlwm txij thaum pib.
Sau ob qhov kawg ntawm txhua qhov txuas nrog txoj kev polarity, lub cev hom, chaw nres nkoj naj npawb, thiab fiber ntau txoj haujlwm. In high-density patch panels, clear labeling is the difference between a five-minute patch job and a thirty-minute troubleshooting session.
Khaws cov khoom siv patch cord yooj yim. Kev tuav ntau hom polarity hauv tib thaj chaw hauv Tshuag ua rau muaj kev ua yuam kev. Yog ua tau, ua qauv ntawm A-rau-B thaj qaum thiab tsim cov channel nyob ib ncig ntawm tus qauv ntawd.
Tshawb xyuas thiab ntxuav cov connectors ua ntej kuaj polarity. Cov khoom sib txuas qias neeg tsim cov tsos mob sib cais - poob siab, sib txuas sib txuas - uas tuaj yeem npog lossis ua raws li cov teeb meem polarity. Ua kom tiav qhov kev tshuaj xyuas lub cev ua ntej, tom qab ntawd txheeb xyuas qhov Tx / Rx daim ntawv qhia. Yog xav paub ntxiv txog kev ua haujlwm connector, saib qhov noLC fiber ntau connector qhia.
Train technicians on Tx/Rx logic. Kev nkag siab yooj yim ntawm kev xa tawm-rau- tau txais daim ntawv qhia - thiab muaj peev xwm nyeem cov kab hluav taws xob kab hluav taws xob cov cim cim - tiv thaiv ib qho loj ntawm kev teeb tsa yuam kev.
Npaj rau yav tom ntej ceev. Yog tias cov txheej txheem yuav txhawb nqa 400G lossis 800G qhov sib npaug ntawm optics yav tom ntej, xaiv txoj hauv kev polarity thiab lub cev hom uas haum rau tag nrho - array kis tau tus mob, tsis yog daim ntawv qhia kev sib tw xwb.
Fiber Polarity FAQ
Dab tsi yog fiber ntau polarity hauv cov ntsiab lus yooj yim?
Fiber polarity txhais tau hais tias npaj fiber ntau strands kom txhua tus transmitter (Tx) txuas mus rau qhov tseeb receiver (Rx) ntawm qhov opposite kawg ntawm qhov txuas. Yog tias qhov kev npaj no tsis raug, qhov txuas yuav tsis ua haujlwm txawm tias cov cable thiab cov khoom sib txuas tau zoo.
Yuav ua li cas yog fiber polarity tsis ncaj ncees lawm?
Qhov txuas tsis ua haujlwm vim hais tias lub transmitter ntawm ib lub cuab yeej xa lub teeb mus rau lub transmitter ntawm lwm lub cuab yeej es tsis txhob ntawm nws lub receiver. Lub cable yuav dhau los kuaj lub cev thiab kev sim poob, tab sis kev sib txuas hauv lub network yuav tsis tuaj.
Puas yog A-rau-B zoo ib yam li txoj hlua hla hla?
Hauv duplex fiber ntau thaj qaum, A- mus rau -B qaum hla ob txoj haujlwm fiber ntau ntawm ib kawg mus rau lwm qhov. Tus ntoo khaub lig no tswj hwm Tx-rau-Rx kev sib raug zoo uas feem ntau cov kev sib txuas duplex xav tau.
Kuv tuaj yeem kho polarity los ntawm flipping LC duplex connector?
Flipping ib tug duplex LC connector tuaj yeem kho qhov yooj yim Tx / Rx mismatch nyob rau hauv qee kis, tab sis nws tsis yog ib qho kev txhim khu kev qha rau cov qauv cabling channel. Ib txwm paub meej tias tag nrho cov polarity txoj kev - hom pob tw, cassette thaiv, thiab thaj cord hom - ua ntej cia siab rau lub connector flip raws li kev txhim kho mus tas li.
Dab tsi yog qhov txawv ntawm MPO Hom A, Hom B, thiab Hom C trunks?
Hom A yog ncaj- dhau ntawm (fiber txoj haujlwm khaws cia), Hom B yog thim rov qab (txoj hauj lwm mirrored kawg- rau- kawg), thiab Hom C yog khub- rov qab (cov khub uas nyob ib sab hla). Txhua lub cev lub cev txhawb nqa txoj kev sib txawv polarity thiab lawv yuav tsum tsis txhob hloov pauv rau ib leeg yam tsis muaj kev rov ua dua tshiab -kev tsim kho cov channel. Rau kev sib piv sib sib zog nqus, saib lub ntsiab lus ntawm noMPO cable hom thiab yuav ua li cas xaiv ntawm lawv.
Txoj kev fiber ntau polarity twg yog qhov zoo tshaj plaws rau cov ntaub ntawv tshiab?
Tsis muaj ib txoj hauv kev zoo tshaj plaws rau txhua qhov chaw. Rau kev tsim tshiab, Txoj Kev B, U1, thiab U2 feem ntau raug soj ntsuam vim tias lawv siv hom B pob tw thiab tuaj yeem ua qauv ntawm A-rau-B thaj qaum ntawm ob qho kawg. Qhov kev xaiv zoo yog nyob ntawm daim ntawv thov sib xyaw, cov kev xav tau sib cais, thiab seb cov cabling puas xav tau los pab txhawb kev tsiv teb tsaws ntawm optics yav tom ntej.
Puas yog txoj kev polarity A, B, thiab C sib hloov tau?
Tsis yog. Txhua txoj kev siv lub cev sib txawv thiab cov khoom siv logic. Kev sib xyaw ntawm Txoj Kev A cassette rau hauv Txoj Kev B channel - lossis hloov hom C lub cev rau hauv Txoj Kev A tus qauv - yuav tsim qhov tsis raug Tx/Rx mapping.
Cov teeb meem polarity puas cuam tshuam rau qhov poob?
Polarity thiabpoob poobyog nyias muaj nyias teeb meem. Ib lub channel tuaj yeem ntsuas qhov poob ntawm txhua qhov fiber ntau tab sis tseem ua tsis tau yog tias Tx thiab Rx tsis txuas nrog raug. Kev xeem poob ib leeg tsis txheeb xyuas qhov polarity.
Puas yog MPO polarity tsuas yog ib qho tseem ceeb rau cov chaw zov me nyuam?
Tsis yog. Polarity tseem ceeb nyob qhov twg MPO/MTP trunks, cassettes, los yog siab -cov fiber ntau ceev yog siv - nrog rau cov chaw lag luam hauv tsev kawm ntawv, cov chaw tshaj xov xwm, thiab cov chaw ua haujlwm hauv xov tooj.
Xaus
Fiber polarity xyuas kom meej tias optical transmitters txuas mus rau qhov tseeb receivers hla txhua qhov txuas hauv network. Hauv kev sib txuas duplex yooj yim, qhov no los ntawm kev siv txoj cai A - rau -B thaj qaum. Hauv MPO/MTP tus qauv cabling, polarity dhau los ua ib qho system- theem kev txiav txim siab uas muaj cov pob tw, cassettes, adapters, patch cords, thiab forward- saib kev npaj tsiv teb tsaws chaw.
Txoj hauv kev txhim khu kev qha tshaj plaws yog xaiv ib txoj hauv kev sib tw, yuav cov khoom sib tw, sau txhua qhov txuas kom meej, txheeb xyuas Tx / Rx daim ntawv qhia nrog cov cuab yeej ntsuas kom raug, thiab sau cov txiaj ntsig. Thaum polarity raug kho raws li kev tsim qauv kev qhuab qhia es tsis yog qhov kev xav tom qab, kev teeb tsa fiber ntau ua sai dua rau kev xa tawm, yooj yim rau kev tswj hwm, thiab npaj txhij rau txhua qhov nrawm los tom ntej.
