FTTH GPON Poob Kev Npaj Nyiaj Txiag: Splitter Ratios, Field Margin & Handoff Checklist|Glory Optics

Vim li cas FTTH Poob Nyiaj Tsis Tau Los Ntawm Kev Tsim thiab Handoff

Lub chaw ua haujlwm daim ntawv nthuav qhia pom 4 dB ntawm lub taub hau. Lub tsheb tuaj txog, ONT txuas nrog, thiab qib tau txais yog 5 dB qis dua li tau npaj tseg. Tsis muaj dab tsi hauv cov qauv hloov pauv - tus qauv tsim yog lawm. Qhov hloov pauv yog txhua yam ntawm cov qauv xav tau: ib qho kev sib txuas huv uas tsis huv, ib txoj hauv kev uas ntev tshaj li cov ntaub ntawv GIS strand, feeder fiber uas tau patched rau qhov tsis ncaj ncees lawm splitter thaum lub sij hawm ua hauj lwm dhau los, los yog lub teeb -cov ntaub ntawv qib uas tsis muaj leej twg tau sau.

Feem ntau cov ntawv poob nyiaj nres ntawm qhov sib npaug. Hauv kev xa tawm FTTH tiag tiag, qhov sib npaug yog qhov yooj yim. Qhov nyuaj yog kev ua haujlwm uas txuas cov kev xav ntawm kev tsim qauv, splitter architecture, connector cleanness, field margin, test records and handoff documentation - and proves what really happen on site. Cov lus qhia no suav nrog ob qho tib si: GPON poob nyiaj lej, thiab kev xyaum ua haujlwm uas ua rau lej ncaj ncees.

Daim ntawv nthuav qhia qhia koj tias yuav tsum muaj dab tsi tshwm sim. Kev tshuaj xyuas teb, lub teeb -cov ntaub ntawv theem thiab cov ntaub ntawv ua pov thawj tias qhov tshwm sim tiag tiag.Ib qho nyiaj poob qis uas tsis quav ntsej txog ib nrab yog ib qho peev nyiaj uas poob ntawm kev ua lag luam.

Yuav ua li cas xam ib qho yooj yim FTTH GPON Poob peev nyiaj

GPON poob nyiaj yog tag nrho cov kev tso cai kho qhov muag ntawm OLT thiab ONT. Txhua yam passive raws li qhov muag pom kev faib network (ODN) siv ib feem ntawm nws. Lub hauv paus kev sib raug zoo yog yooj yim:

Poob nyiaj txiag formula

Tag Nrho Txuas Poob=Fiber Poob + Splitter Poob + Connector Poob + Splice Poob + Engineering Margin

Cov phiaj xwm tag nrho yuav tsum nyob hauv chav kawm kho qhov muag poob ntawm koj cov khoom siv. Hauv qabITU-T G.984.2, GPON txhais ob peb chav kawm; Chav B + (13–28 dB) yog tus qauv de facto xa mus thiab feem ntau yog dimensioned rau ib tug 1:32 phua ntawm ib ncig ntawm 20 km, thaum Class C + (17–32 dB) ncua mus txog los yog sib faib piv. Qhov tshiabXGS-PON pob nyiaj siv raws li ITU-T G.9807.1zaum me ntsis siab dua (nyob ib ncig ntawm 29 dB rau cov chav kawm N1) nrog kev rov qab nruj dua - qhov kev cia siab poob, uas tseem ceeb yog tias koj npaj yuav overlay lossis tsiv mus rau 10G PON ntawm tib ODN. Nov yog txhua qhov sib txawv, nrog rau kev npaj muaj txiaj ntsig koj tuaj yeem pib los ntawm.

Npaj cov chaw tuav nkaus xwb. Siv lawv los pib ib daim ntawv ua haujlwm, tom qab ntawd hloov txhua tus nqi nrog daim duab los ntawm koj daim ntawv teev cov ntaub ntawv thiab qhov project specification.
Loss keeb	Planning nqi (qhov chaw)	Nws nyob ntawm dab tsi
Fiber ntau attenuation	~ 0.35 dB / km ntawm 1310 nm; 0.21-0.25 dB/km ntawm 1490/1550 nm	Txoj kev ntev thiab wavelength. Txoj kev nce toj 1310 nm feem ntau yog qhov phem tshaj plaws. Tus nqi ibITU-T G.652.
Splitter insertion poob	1:8 ≈ 10.5 dB · 1:16 ≈ 13.5 dB · 1:32 ≈ 17.0–17.5 dB · 1:64 ≈ 21 dB	Split ratio thiab poob ntau dhau. Feem ntau qhov loj tshaj plaws ib leeg passive poob; paub meej tiv thaiv PLC splitter datasheet.
Connector -pair poob	~ 0.3 dB ib khub niam txiv (ntau ~ 0.2–0.5 dB)	Number ntawm connector khub, qib thiab polish. Feem ntau underestimated nyob rau hauv daim teb.
Fusion splice poob	~ 0.1 dB rau splice	Splice suav hla feeder, faib thiab poob seem.
Engineering / field margin	~ 2-3 dB tseg	Kev laus, kho splices, kev pheej hmoo kis kab mob thiab ntsuas qhov tsis paub tseeb.

Cov ntawv tseeb

Splitter poob yog tus nqi feem ntau hais raws li ib tus lej "universal" thiab feem ntau tsis yog. A 1:32 phua muaj qhov theoretical poob ze ntawm 15 dB ua ntej poob ntau dhau, yog li cov lus hais 1:32 tus nqi qis dua ~ 17 dB feem ntau yog 1: 8 daim duab rov ua yuam kev. Ib txwm rub lub ntxig poob los ntawm qhov xaivPLC splittercov ntaub ntawv tsis yog los ntawm kev nco, thiab nyiam PLC tshaj FBT rau qhov sib piv ntawm 1: 8 thiab siab dua rau kev sib luag thiab kev ruaj ntseg - saibPLC vs FBT splitter xaiv.

Ib qho piv txwv ua haujlwm GPON poob nyiaj txiag

Cov naj npawb ua rau kev ua haujlwm ua tiav. Cov piv txwv hauv qab no yog ib qho downstream Class B+ npaj rooj plaub rau ib qho -theem 1:32 ODN, nrog rau txhua daim duab cim raws li qhov chaw yuav tsum tau lees paub tiv thaiv cov ntaub ntawv project.

Downstream Class B + kev npaj ua piv txwv. Yog tias OLT tso tawm ntawm +3 dBm, qhov xav tau ONT tau txais qib yog li ntawm +3 − 21.4=−18.4 dBm, yooj yim hauv chav kawm B + ONU qhov rais. Paub meej tias OLT xa hluav taws xob thiab ONU rhiab heev tiv thaiv cov ntaub ntawv khoom siv.
Yam khoom	Kev npaj tswv yim	Kev pab poob
Fiber ntev	6.0 km tag nrho ntawm 0.35 dB / km (1310 nm phem tshaj plaws)	2.1dB ib
1:32 PLC splitter	17.1 dB ntxig poob (datasheet placeholder)	17.1 dB
Connector khub	6 mated khub × 0.3 dB	1.8dB ib
Fusion splices	4 splices × 0.1 dB	0.4dB ib
Passive subtotal	-	21.4 dB
Engineering / field margin	Khaws tseg	3.0dB ua
Npaj txuas tag nrho	vs Class B + txwv 28 dB	24.4 dB (≈3.6 dB taub hau)

Cov 6 connector khub hauv qhov piv txwv no tsis yog qhov nthuav dav - ntawm 0.3 dB txhua qhov lawv siv nyiaj ntau dua li tag nrho cov fiber ntau khiav. Qhov ntawd yog cov lus qhia rov muaj dua: suav txhua tus khub niam txiv los ntawm OLT chaw nres nkoj los ntawm ODF, kev sib txuas pub noj, sib txuas kaw, cais tawm tswv yim thiab tso tawm, FDB / NAP thiab phab ntsa qhov hluav taws xob rau ONT. Ib pob nyiaj siv uas ua qauv splitter poob qhov tseeb tab sis tsis nco qab ob lub connector khub twb tawm los ntawm ntau tshaj ib nrab ib decibel ua ntej leej twg kov lub teb.

Dab tsi yuav tsum tau suav nrog hauv FTTH Cov Nyiaj Txiag Nyiaj Txiag?

Ib daim ntawv nthuav qhia muaj txiaj ntsig zoo tshaj li luam tawm tag nrho. Nws qhia tau hais tias txhua qhov kev pab cuam yog li tus kws tshaj lij pom tauqhov twgqhov poob zaum, thiab nws tawm kab rau qhov ntsuas tau tiag tiag. Cov no yog cov teb uas khwv tau lawv qhov chaw.

Teb	Vim li cas thiaj tseem ceeb
OLT xa hluav taws xob	Pib optical fais fab kev xav rau qhov txuas.
ONT tau txais rhiab heev	Teem qhov tsawg kawg nkaus tau txais qib rau ONU xaiv.
Fiber nrug	Tsav lub laij lej attenuation; rub los ntawm cov ntaub ntawv strand ntev, tsis yog kwv yees.
Lub wavelength	poob txawv ntawm wavelength; tsim rau qhov phem tshaj - cov lus taw qhia.
Split ratio	Lub ntsiab passive poob contributor thiab thawj yam tshuaj xyuas xyuas.
Splitter insertion poob	Yuav tsum phim daim ntawv xaiv PLC splitter, tsis yog daim duab.
Connector khub	suav rau ib khub niam txiv hla tag nrho txoj kev; qhov feem ntau underestimated yam.
Fusion splice suav	Me me ntawm tus kheej, muaj txiaj ntsig hauv tag nrho.
FDH / FDB / NAP cov ntsiab lus	Txhua qhov ntxiv txuas thiab kev tswj kev poob.
Engineering margin	Tiv thaiv qhov tau txais qib tiv thaiv qhov sib txawv ntawm qhov chaw.
Cia siab tias ONT tau txais qib	Qhov kev npaj tseem ceeb rau qhov txuas.
Ntsuas teb theem	Sib piv cov qauv tsim tawm tsam qhov tseeb ntawm kev xa tawm.
OTDR / OLTS daim ntawv qhia siv	Txuas kab mus rau cov ntaub ntawv xeem rau pob khoom siv.

Field tool note

Ntau pab pawg ua haujlwm khaws lub tshuab xam zauv ua haujlwm ua haujlwm offline vim tias nkag mus rau -cov chaw haujlwm hauv lub network feem ntau muaj cov kev pab them nqi mobile tsis muaj zog. Tus kws tshaj lij tuaj yeem suav cov qib siab kawg ntawm qhov chaw thiab xa daim screenshot thaum kev nyeem ntawv tawm ntawm spec. Lub software tsis muaj teeb meem; Dab tsi tseem ceeb yog tias lub cuab yeej nthuav tawm txhua qhov kev koom tes hauv qhov tsis yog zais nws qab ib tus lej.

Yuav ua li cas Splitter Ratios cuam tshuam rau FTTH GPON Poob peev nyiaj

Lub splitter yog qhov feem ntau ntawm cov peev nyiaj mus, thiab qhov kev txiav txim siab ntawm architecture tsis tshua muaj "dab tsi piv." Ib qho -theem 1:32 splitter yog muaj rau ib leeg-tsev neeg-unit (SFU) FTTH, qhov twg ib qho splitter ntawm lub txee lossis FDH pub 32 lub tsev. Ib qho qauv cascaded - piv txwv li thawj zaug -theem 1: 8 pub plaub 1: 4 splitters - feem ntau yog siv rau ntau-cov tsev nyob (MXU) lossis lub tsev- theem faib, tso theem thib ob los ze rau cov neeg siv khoom.

Ob lub architectures ncav cuag 32 chaw nres nkoj nrog zoo sib xws tag nrho cov splitter poob, tab sis txoj kev cascaded nqa me ntsis ntxiv thiab faib cov splitting. Paub meej tias ob theem tiv thaiv daim ntawv teev cov ntaub ntawv, thiab tsim rau qhov phem tshaj -txoj kev, tsis yog qhov nruab nrab.
Kev tsim vaj tsev	Cov zis	Kwv yees li. cumulative splitter poob (qhov chaw)	Hom kev siv
Tib -theem 1:32	32	~ 17.1 dB	SFU, splitter ntawm FDH / txee
Cascaded 1:8 + 1:4	32 (8 × 4)	~ 10.5 + 7.3=~ 17.8 dB	MXU / lub tsev faib khoom, theem ob ze rau cov neeg siv khoom

Kev qhuab ntuas uas cais cov qauv tsim kev ntseeg siab los ntawm qhov tsis yooj yim yogphem tshaj - kis kab mobxav. Xam qhov ntev tshaj plaws, feem ntau -splice, feem ntau - txuas txoj kev uas tus neeg siv khoom tuaj yeem zaum ntawm, tsis yog qhov yooj yim uas nyob ze lub txee. Thiab ua ntej koj puas tau cem tus downstream splitter rau lub teeb qis, xyuas cov qib musrau hauvnws.

Teb rooj

Hauv kev sib tham hauv kev sib tham ntawm cov kws tshaj lij fiber ntau, cov lus qhia rov qab thiab kim yog qhov sib cais uas tsis tau tawg. Ib tus kws tshaj lij tau piav qhia txog re-splicing tag nrho 1 × 32 splitter ntawm qhov kev xav tias nws tau ua tsis tiav, vim tias txhua qhov chaw tso zis tau nyeem qis. Qhov txhaum tiag yog ntws: ib qho cais cais tau patched rau qhov tsis ncaj ncees lawm feeder fiber, tshaib plab 1 × 32 ntawm lub zog nkag. Ib qho kev ntsuas ntawm lub splitternkagqib - piv rau cov nqi uas xav tau los ntawm daim ntawv ua haujlwm - yuav tau taw qhia cov dej ntws tam sim ntawd thiab txuag cov sij hawm tsis tsim nyog re-splicing.

Takeaway

Ua ntej daws teeb meem splitter outputs, txheeb xyuas cov theem nkag nkag. Yog hais tias cov tswv yim twb tsis tshua muaj, qhov teeb meem yog upstream ntawm lub splitter, thiab hloov los yog re-splicing lub splitter hloov tsis muaj dab tsi.

Vim li cas FTTH Poob Nyiaj Yuav Tsum Tau Field Margin

Ib qho kev poob nyiaj txiag xav tias cov khoom sib txuas huv si, kev ua haujlwm raug, cov khoom muaj nqis ruaj khov thiab cov ntaub ntawv raug. Kev xa tawm hauv teb yog messier dua li daim ntawv nthuav qhia, thiab qhov sib txawv ntawm lawv muaj lub npe: daim teb paj. Nws yog kev npaj tseg, tsis yog qhov tsis sib xws, thiab nws tsis yog qhov hloov pauv rau kev ua haujlwm zoo - nws yog qhov nyiaj pub dawb rau qhov kev hloov pauv uas kev ua haujlwm zoo tsis tuaj yeem tshem tawm tag nrho.

Cov peev txheej ntawm kev hloov pauv hauv thaj chaw muaj xws li:

qias neeg los yog khawb qhov kawg ntawm lub ntsej muag, thiab kev tu tsis zoo ua ntej mating.
Hnav sim jumpers thiab tso cov hlua uas tau tshaj lawv qhov ntsuas qhov ntsuas.
Khoov kev nyuaj siab nyob rau hauv lub poob cable, los yog ib tug nruj dua - dua - spec coil nyob rau hauv lub davhlau ya nyob twg.
Cov khub txuas ntxiv ntxiv thaum kho lossis hloov kev pabcuam.
Kho splices ntxiv tom qab thawj installation.
Qhov kev ncua deb ntawm txoj kev tsis raug, lossis ib qho kev sib cais uas tau hloov tom qab tsim.
Tsis ncaj ncees lawm fiber lossis splitter assignment ntawm tus ntoo khaub lig-txuas.

CovFiber Optic Associationpom zoo kom muaj qhov txuas poob qis ntawm kwv yees li 3 dB kom tso cai rau degradation dhau sijhawm - qhov chaw laus, cov khoom sib txuas tau qias neeg thaum qhib rau rerouting, thiab splices ntxiv rau kev kho dua tshiab tom qab txiav. Siv tib lub hauv paus ntsiab lus rau GPON: ib qhov phiaj xwm poob nyiaj yuav tsum tawm ntawm cov npoo txaus uas qhov kev hloov pauv ib txwm tsis thawb ONT tau txais lub zog mus rau ntawm ntug ntawm nws qhov kev ua haujlwm. Ntawm qhov txuas 28 dB Class B+, qhov kev npaj tag nrho hauv qhov qis - mus rau - nruab nrab 20s tawm hauv chav kom nqus cov kab mob sib kis los yog kev tu splice yam tsis muaj tsheb thauj khoom.

Dirty Connector End Faces: Qhov teeb meem zais nyiaj poob

Xaus-kev sib kis ntawm lub ntsej muag yog ib qho ntawm qhov ua tau zoo tshaj plaws ntawm qhov txuas uas zoo li pom tau ntawm daim ntawv drifts lossis ua tsis tiav ntawm kev xa tawm.VIAVpiav qhia txog cov kab mob tsis huv raws li tus lej-ib qho ua rau kev puas tsuaj ntawm cov khoom siv kho qhov muag, suav nrog cov khoom puas tsuaj mus tas li, thiab sau tseg tias cov khib nyiab ib txwm ntawm lub ntsej muag kawg tsuas yog 2–15 µm - pom tsis tau ntawm qhov muag liab qab thiab pom tsuas yog nyob rau hauv lub tshuab ntsuas fiber ntau. Ib qho me me me me rau hauv cov tub ntxhais tuaj yeem ua rau muaj kev cuam tshuam loj heev - rov qab los thiab tsis muaj qhov nkag.

Txoj kev kho kom raug tsis yog "huv nws thiab kev cia siab." Nws yog kev qhuab ntuas, rov hais dua uas qhov kev xeem thiab cov qauv hauv zej zog hu mus kuaj xyuas - ua ntej - koj - txuas:

Tshawb xyuas ob qho tib si mating kawg ntsej muag nrog kev soj ntsuam fiber ntau.
Ntxuav lub ntsej muag kawg yog tias pom muaj kab mob.
Rov xyuas dua ua ntej mating - kev ntxuav tuaj yeem txav cov khib nyiab tsis yog tshem tawm.
Rov ua dua lub zog txuas.
Yog hais tias qhov teeb meem tseem tshuav, xyuas qhov ntsuas jumper lossis lub xaim hlua, uas yog khoom siv.
Tom qab ntawd, thiab tsuas yog tom qab ntawd, txuas ntxiv nrog OTDR / OLTS teeb meem.

Cov txheej txheem lees paub rau "huv txaus" los ntawmIEC 61300-3-35: 2022 Kev Ua Haujlwm, uas qib khawb thiab qhov tsis xws luag los ntawm cheeb tsam ntawm lub ntsej muag kawg.Fluke Networkssau tseg tias qhov tsab xov xwm tshiab no tau yooj yim dua qhov chaw hla / tsis ua haujlwm, tab sis cov logic ua haujlwm tsis hloov pauv: tshuaj xyuas, ntxuav, rov tshuaj xyuas, ntawm ob sab ntawm kev sib txuas, suav nrog cov ntawv xeem siv hlua - vim tias lub tshuab nqus dej qias neeg hloov cov kab mob mus rau txhua qhov chaw nres nkoj nws kov.

Dirty Connector End Faces: The Hidden Loss Budget Problem

Scope daim ntawv

Kev kis kab mob yog qhov teeb meem tshwm sim, tsis yog lub hauv paus ua rau txhua lub sijhawm. Kev soj ntsuam pom pom tseeb tias lub ntsej muag kawg yog haum rau phooj ywg; nws tsis hloov kho qhov muag lub zog ntsuas. Tshawb xyuas thiab ntxuav thaum ntxov vim nws pheej yig thiab nrawm, tom qab ntawd ua pov thawj qhov txuas nrog OLTS lossis lub ntsuas hluav taws xob. Cov khoom feem ntau koom nrog zaum hauv cov txheej txheem kev sib txuas:adapters, pigtails, patch kab, covphab ntsa qhov hluav taws xobthiab FDB/NAP. Khaws ibntxuav thiab tshuaj xyuas cov khoom sivnyob rau hauv tib lub hnab raws li lub hwj chim meter, thiab saib covconnector tu phau ntawv qhiarau cov kauj ruam -los ntawm - kauj ruam txoj kev.

Vim li cas FTTH Technicians yuav tsum sau cov theem teeb ntawm txhua kauj ruam

Kev suav nyiaj poob yog qhov teeb meem tsim. Tau txais cov kws tshaj lij los sau cov qib kho qhov muag tsis tu ncua yog qhov teeb meem ua haujlwm - thiab feem ntau yog qhov nyuaj dua. Ib qho kev ntsuas uas tau muab tab sis tsis sau cia tsis pab cov kws tshaj lij tom ntej, thiab nws tsis pab NOC cais qhov tsim kev txhaum los ntawm kev teeb tsa ua txhaum rau lub hlis tom qab.

Hauv cov ntsiab lus tseem ceeb ntawm kev sib tw, sau tseg:

OLT / feeder side reference qib.
Splitter input theem.
Splitter tso zis theem.
FDB / NAP davhlau ya nyob twg theem.
Phab ntsa los yog phab ntsa qhov hluav taws xob theem.
ONT- sab txais qib.
Hnub tim thiab kws kho mob.
Cov khoom siv kuaj tau siv.
OTDR lossis OLTS daim ntawv qhia tus lej.
Ib qho kev nyeem ntawv txawv txav thiab kho kom raug.

Lub teeb- cov ntaub ntawv theem yuav tsum nyob hauv ob qhov chaw: cov ntaub ntawv teeb tsa lub cev ntawm lub davhlau ya nyob twg, thiab qhov project hauv nruab nrab lossis ua haujlwm- xaj xaj. Qee pawg sau cov qib hauv lub thawv phab ntsa thiab tseem xa lawv los ntawm cov ntawv pib, uas tsim kom muaj kev taug qab rau kev saib xyuas yav tom ntej. Ib txheej txheej uas yuav tsum tau ua yog hloov ib qho - lub sij hawm ntsuas mus rau hauv ib qho khoom vaj khoom tsev uas rov siv tau.

FTTH Loss Budget Handoff Checklist rau Client lossis NOC Review

Cov ntaub ntawv pov thawj zoo yuav txo tau lub sijhawm daws teeb meem yav tom ntej thiab cia NOC qhov txawv ntawm qhov teeb meem tsim, teeb meem kev teeb tsa thiab kev saib xyuas tom qab. Ib pob tiav yuav tsum suav nrog:

Cov lus poob nyiaj zaum kawg, nrog kev cia siab piv rau qhov ntsuas lub teeb.
OTDR daim ntawv tshaj tawm, nrog cov chaw nres nkoj meej thiab cov ntawv sau npe.
OLTS / fais fab -meter ntsuas cov ntaub ntawv.
Splitter piv thiab qhov chaw nres nkoj.
Fiber txoj kev thiab strand assignment.
Splice kaw cov ntaub ntawv.
FDB / NAP chaw nres nkoj cov ntaub ntawv.
Phab ntsa lub thawv / cov neeg siv khoom siv davhlau ya nyob twg cov ntaub ntawv.
Raws li - ua daim duab, PDF ua haujlwm luam tawm, thiab DWG cov ntaub ntawv yog qhov xav tau.
Cheebtsam datasheets thiab batch test reports rau cov tseem ceeb passive Cheebtsam.
Labeling cov ntaub ntawv.

Cov ntaub ntawv sau tseg

GIS thiab strand- cov cuab yeej tswj xyuas pab taug qab txoj kev ntev thiab txoj haujlwm fiber ntau, thiab cov peev nyiaj poob yuav ua rau muaj kev ntseeg siab dua thaum ob qhov kev tawm tswv yim no tau sau tseg ntau dua li qhov kwv yees. Rau qhov kev txiav tawm lub cev thiab daim ntawv lo cov kauj ruam uas pub cov pob no, saib cov txheej txheem teb hauvfiber termination box installation qhia.

Dab tsi suav nrog hauv FTTH ODN BOM rau Kev Tswj Nyiaj Txiag Loss

Kev npaj yuav khoom thiab kev poob nyiaj txiag yog tib yam kev tawm dag zog saib los ntawm ob lub ces kaum. Txhua kab ntawm daim nqi ntawm cov ntaub ntawv yuav ua rau poob, tswj nws, lossis cov ntaub ntawv nws - yog li BOM thiab cov peev nyiaj yuav tsum tau tsim ua ke, tsis yog hauv cov silos sib cais. Pab pawg ODN Cheebtsam los ntawm txheej txheej network:

ODN txheej	Cheebtsam	Poob- qhov cuam tshuam txog nyiaj txiag
Feeder	Sab nraum zoov feeder cable, splice kaw	Teem feeder attenuation thiab thawj splice ntsiab lus.
Kev faib tawm	PLC splitter(module / tais),fiber nkag davhlau ya nyob twg / NAP, faib kab	Qhov loj tshaj passive poob (splitter) ntxiv rau kev faib khoom sib txuas ua ke.
Tso	FTTH poob cable, ceev connectors	Tso attenuation, khoov rhiab heev thiab zaum kawg connector khub.
Subscriber	FTTH phab ntsa qhov hluav taws xob, pigtails, adapters, patch kab	Cov khub txuas zaum kawg thiab ONT- sab tau txais interface.
Kev txhawb nqa kuaj	Cov khoom siv ntxuav, daim ntawv lo accessories, test report package	Khaws connector poob hauv pob nyiaj siv thiab tsim cov ntaub ntawv pov thawj.

Cov ntaub ntawv muab rau hauv FTTH ODN RFQ

Kom tau txais BOM uas phim cov nyiaj poob qis dua li cov npe ntawm cov khoom xoob xoob, RFQ yuav tsum hais cov chav kawm GPON lossis cov phiaj xwm kho qhov muag, qhov sib faib piv, seb tus qauv tsim yog ib qho -theem los yog cascaded, txoj kev ntev, fiber ntau, hom txuas thiab polish (APC lossis UPC), tus naj npawb ntawm connector khub thiab fusion splices, daim ntawv qhia rau sab hauv / sab nrauv thiab sab nraum zoov kev xav tau. Polish xaiv yog kev txiav txim siab txog nyiaj txiag ntau npaum li ib qho kev siv tshuab: APC feem ntau yuav tsum tau qhov twg RF-video lossis coexistence overlays caij tib lub fiber ntau, vim nws txoj kev rov qab nruj dua - kev lag luam-offs tau them rau hauvfiber connector phau ntawv qhia.

What to Include in an FTTH ODN BOM for Loss Budget Control

Feem ntau FTTH poob peev nyiaj yuam kev hauv cov phiaj xwm tiag

xam cov splitter poob precisely tab sis ignoring connector khub.
Kho 1:32 splitter poob raws li ib tug ruaj universal tooj es tsis txhob nyeem cov datasheet.
Troubleshooting splitter outputs ua ntej kuaj lub splitter input theem.
Tsis sau cov theem teeb pom kev zoo, lossis sau cia rau hauv daim ntawv nkaus xwb uas tsis mus txog NOC.
Tsis quav ntsej qias neeg connector kawg ntsej muag thiab hla kev soj ntsuam.
Siv lub ntsuas jumper uas twb muaj kab mob los yog yav dhau los nws cov ntsuas ntsuas.
Tsis nco qab cia rau yav tom ntej kho splices.
Tsim nrog tsis muaj cov npoo npoo txhua.
Kev xa tawm OTDR cov cim tsis muaj qhov chaw nres nkoj meej thiab cov ntawv cim npe.
Sib cais BOM kev npaj los ntawm kev npaj nyiaj txiag poob.

Matched ODN Cheebtsam rau GPON Poob Nyiaj Tswjhwm

Txhua qeb hauv qab no qhia txog ib txheej ntawm cov peev nyiaj poob. Xaiv cov khoom uas tuaj nrog cov ntaub ntawv xeem cov ntaub ntawv khaws cia cov txiaj ntsig tau npaj tseg thiab cov khoom xa tuaj ze.

Kev poob loj tshaj plaws

PLC Splitters

1 × 2 rau 1 × 64 PLC splitters nyob rau hauv liab qab, blockless, ABS, LGX thiab khib-mount pob rau GPON thiab XGS-PON ODN pob nyiaj siv.

Saib PLC Splitters

Feeder splice cov ntsiab lus

Splice Closures & Enclosures

Dome thiab inline splice kaw thiab sib koom enclosures rau feeder thiab faib splice cov ntsiab lus, kaw rau sab nraum zoov thiab faus txoj kev.

Saib Splice Kaw

Kev faib tawm / nkag

Fiber Distribution & Termination Boxes

Fiber access terminals, NAP lub thawv thiab ua ntej- txuas cov thawv xa tawm uas tswj cov chaw nres nkoj splitter thiab tso kev sib txuas.

Saib Cov Khoom Muag Khoom Muag

Tso & subscriber

Tso Cable, Phab Ntsa Outlets & Pigtails

FTTH nco cable, phab ntsa qhov hluav taws xob, SC / APC pigtails, adapters thiab thaj qaum rau qhov kawg connector khub thiab ONT interface.

Saib FTTH Cable

FAQ: FTTH GPON Poob peev nyiaj

Q: FTTH GPON poob nyiaj txiag yog dab tsi? A: Nws yog tag nrho cov kev tso cai kho qhov muag poob ntawm OLT thiab ONT. Nws ntxiv fiber ntau attenuation, splitter insertion poob, connector -pair poob thiab splice poob, ntxiv rau ib tug engineering margin. Cov phiaj xwm tag nrho yuav tsum nyob hauv chav kawm kho qhov muag poob ntawm cov khoom siv - piv txwv li ITU-T G.984.2 Chav B+ ntawm 13 txog 28 dB - thaum lub hwj chim tau txais ntawm ONT nyob hauv lub receiver lub qhov rais khiav hauj lwm. Q: Yuav poob ntau npaum li cas ntxiv 1 × 32 splitter? A: Ib qho 1 × 32 PLC splitter feem ntau yog qhov loj tshaj plaws ib qho kev poob qis hauv GPON ODN. Nws qhov theoretical phua poob yog kwv yees li 15 dB, thiab ib qho kev poob cov ntaub ntawv raug npaj nyob ib ncig ntawm 17.0 txog 17.5 dB ib zaug poob ntau dhau. Kho txhua daim duab raws li kev npaj qhov chaw thiab paub meej tias nws tawm tsam cov ntaub ntawv xaiv cais. Q: Vim li cas kuv qhov teeb pom kev thaj tsam tsis sib xws li daim ntawv teev lus? A: Cov laj thawj feem ntau yog qias neeg lossis khawb qhov kawg ntawm lub ntsej muag, cov khoom txuas ntxiv txuas ntxiv thaum lub sij hawm tu, txoj kev tsis raug, qhov tsis ncaj ncees lawm ntawm cov khoom siv fiber ntau los yog cov khoom sib cais, cov fusion tsis zoo, khoov kev ntxhov siab hauv cov hlua khi, ib qho kev sim jumper, thiab cov peev nyiaj uas tsis muaj daim teb. Tshawb xyuas thiab ntxuav cov khoom sib txuas ua ntej, txheeb xyuas qhov sib cais cov tswv yim theem, tom qab ntawd txav mus rau OTDR lossis OLTS teeb meem. Q: Yuav tsum FTTH cov kws tshaj lij sau cov teeb pom kev ntawm txhua qhov chaw? A: Yog, ntawm cov ntsiab lus tseem ceeb: feeder lossis OLT siv, splitter input thiab output, FDB / NAP davhlau ya nyob twg, phab ntsa qhov hluav taws xob thiab ONT txais sab. Cov ntaub ntawv teev hnub, tus kws tshaj lij, cov cuab yeej ntsuas thiab cov kev nyeem tsis zoo ua rau muaj kev cuam tshuam los ntawm NOC tuaj yeem rov siv dua los cais qhov teeb meem tsim los ntawm kev teeb tsa lossis kev saib xyuas txhaum. Q: Puas yog ib qho OTDR taug qab txaus rau FTTH handoff? A: Tsis yog. Ib txoj kab OTDR yog qhov muaj txiaj ntsig zoo rau kev nrhiav cov xwm txheej raws li fiber ntau, tab sis kev xa tawm yuav tsum suav nrog qhov kawg - mus rau - qhov kawg ntsuas hluav taws xob nrog OLTS lossis lub ntsuas hluav taws xob, cov ntaub ntawv txuas txuas rau qhov xav tau, tshem qhov chaw nres nkoj thiab cov ntawv cim npe, raws li - tsim teeb duab thiab qhov xav tau -vim{5} lub rooj sib piv {5} kuv. Ib kab ib leeg tsis ua pov thawj qhov txuas tau raws li cov peev nyiaj kho qhov muag ntawm ONT. Q: Dab tsi yuav tsum tau suav nrog hauv FTTH cov ntaub ntawv poob nyiaj txiag? A: Txoj kev nrug deb, wavelength, phua piv, splitter insertion poob, connector -pair suav, fusion splice suav, engineering margin, OLT xa lub zog, ONT tau txais rhiab heev, qhov xav tau ONT tau txais qib thiab ntsuas qib, ntxiv rau kev siv rau OTDR lossis OLTS daim ntawv qhia. Cov cuab yeej yuav tsum qhia txhua qhov kev pab cuam, tsis yog tag nrho.

Cov qauv, Cov peev txheej pej xeem thiab nyeem ntxiv

ITU-T G.984.2- GPON lub cev media dependent (PMD) txheej; txhais cov chav kawm kho qhov muag tsis pom kev, suav nrog Chav Kawm B + (13–28 dB) thiab Chav Kawm C + (17–32 dB) siv rau kev npaj nyiaj txiag.
ITU-T G.9807.1- XGS-PON; pob nyiaj siv kho qhov muag ntau dua thiab rov qab nruj dua- qhov kev cia siab poob rau 10G PON kev sib koom ua ke ntawm tib ODN.
ITU-T G.652- singlemode optical fiber thiab cable attenuation yam ntxwv siv rau fiber ntau - poob kev npaj nqi.
IEC 61300-3-35: 2022 Kev Ua Haujlwm- kev soj ntsuam pom ntawm fiber ntau-optic connector kawg ntsej muag; pass/fail cov txheej txheem los ntawm cheeb tsam.
Lub koom haum Fiber Optic: xam nyiaj poob nyiaj- txoj kev poob nyiaj txiag, cov lus qhia txog ~ 3 dB, thiab suav nrog cov splitters hauv kev suav.
VIAVI Solutions: Kev Tshuaj Xyuas Fiber yog dab tsi- kev kis kab mob ua rau ua rau muaj kev cuam tshuam hauv lub network thiab kev tshuaj xyuas - ua ntej - txuas workflow.
Fluke Networks: Hloov rau IEC 61300-3-35- thaj chaw tshuaj xyuas tshiab thiab vim li cas kev tshuaj xyuas / huv / rov tshuaj xyuas siv rau kev siv cov hlua siv ib yam nkaus.
Corning: Link Loss Budget Calculator- tus neeg muag khoom siv rau cov khoom sib txuas-los ntawm- cov khoom txuas tsis suav nrog.

Cov xwm txheej hauv cheeb tsam uas tau hais hauv phau ntawv qhia no qhia txog cov kev paub tsis qhia npe qhia hauv fiber ntau -cov kws kho mob hauv zej zog sib tham thiab tsuas yog siv los qhia txog cov ntsiab lus mob. Txhua qhov kev pom zoo yog nyob rau hauv cov qauv thiab cov neeg muag khoom kuaj cov ntaub ntawv saum toj no. Cov nyiaj poob thiab cov nuj nqis yog npaj cov chaw tuav; paub meej tias lawv tawm tsam cov khoom siv thiab cov ntaub ntawv pov thawj rau koj qhov project.

FTTH GPON Poob Kev Npaj Nyiaj Txiag: Splitter Ratios, Field Margin thiab Handoff Checklist