PLC splitter yog cov cuab yeej siv hluav taws xob uas faib ib lub teeb liab kho qhov muag mus rau ntau txoj hauv kev tawm hauv kev siv fiber ntau. Hauv GPON thiabFTTx deployments, nws zaum ntawm OLT ntawm lub chaw ua haujlwm hauv nruab nrab thiab ONT/ONU ntawm tus neeg siv khoom sab - nws yog cov khoom siv uas ua rau ib qho - rau - ntau fiber ntau faib lub cev ua tau yam tsis muaj hluav taws xob.
Cov lus qhia no suav nrog cov hauv paus ntsiab lus ua haujlwm, qhov tseem ceeb tsis zoo xws li qhov poob thiab qhov ntev ntawm qhov sib txawv, txhua hom pob khoom sib xws, PLC vs FBT kev sib piv, thiab ib kauj ruam - los ntawm - kauj ruam xaiv lub hauv paus hauv kev npaj nyiaj txiag kho qhov muag es tsis yog cov khoom catalogs.
Dab tsi yog PLC Splitter?
PLC stands rau Planar Lightwave Circuit Court. Lub PLC splitter siv waveguides fabricated los ntawm lithography ntawm silica iav substrate los faib ib qho khoom siv kho qhov muag teeb liab rau hauv ntau qhov kev tawm. Cov txheej txheem tsim khoom yog zoo ib yam li semiconductor nti ntau lawm - optical paths yog etched rau hauv lub substrate, uas yog vim li cas PLC splitters ua tiav heev meej thiab uniform teeb faib txawm nyob rau hauv siab phua ratios.
Vim tias nws tsis muaj zog, PLC splitter yuav tsum tsis muaj hluav taws xob. Qhov no ua rau nws yog ib qho kev txhais cov ntsiab lus ntawm passive optical tes hauj lwm raws li teev nyob rau hauv lubITU-T G.984 (GPON)txheem series, qhov twg txhua yam ntawm OLT thiab ONT tsis muaj zog.
Lo lus "optical splitter" yog ib pawg dav uas suav nrog PLC thiab FBT (Fused Biconical Taper) thev naus laus zis. PLC splitter tshwj xeeb yog hais txog cov hom phiaj waveguide, uas yog qhov txawv los ntawm peb tus yam ntxwv: kev txhawb nqa rau kev sib cais ntau dua (txog 1 × 64 ntawm ib nti), cov khoom tso tawm zoo ib yam thoob plaws txhua qhov chaw nres nkoj, thiab tag nrho -band wavelength ua haujlwm ntawm 1260 nm txog 1650 nm.
PLC splitter ua haujlwm li cas?
PLC splitter ua haujlwm los ntawm kev teeb pom kev los ntawm cov kab sib txuas waveguide etched rau hauv silica nti. Lub cev, cov cuab yeej muaj peb ntu: ib qho kev tawm fiber ntau array, PLC nti nws tus kheej, thiab ib qho kev tso tawm fiber ntau array - fiber ntau arrays yog precision -aligned thiab bonded rau ob qho tag nrho ntawm cov nti. Thaum lub teeb liab kho qhov muag nkag mus rau qhov chaw nres nkoj, cov qauv waveguide ntawm lub nti txuas ntxiv faib nws ntawm txhua qhov chaw taw tes, xa cov khoom sib npaug ntawm lub zog kho qhov muag mus rau txhua qhov chaw tso zis. Tsis muaj hluav taws xob hluav taws xob, tsis muaj kev hloov pauv hloov pauv - tsuas yog cov teeb pom kev tsis zoo. Peb qhov tsis zoo uas txhais tau tias PLC splitter ua tau zoo li cas hauv lub network tiag tiag yog nws qhov kev sib tw wavelength, nws qhov kev tawm tswv yim / tso zis teeb tsa, thiab nws qhov kev poob qis ntawm txhua qhov sib faib.
Kev khiav hauj lwm Wavelength Range thiab Bidirectional Transmission
Cov txheej txheem sib cais no yog wavelength - ywj siab hla ntawm 1260–1650 nm kev khiav haujlwm. Qhov ntawd txhais tau hais tias ib qho PLC splitter ib txhij ua haujlwm tag nrho peb lub wavelengths siv nyob rau hauv ib txwmGPON qhov system: upstream ntawm 1310 nm, downstream ntawm 1490 nm, thiab video overlay ntawm 1550 nm. Lub splitter tseem yog bidirectional - cov teeb liab ntws los ntawm ntau ONTs rov qab los ntawm tib lub cuab yeej thiab ua ke mus rau OLT.
1 × N thiab 2 × N Configurations
PLC splitters tau piav qhia los ntawm lawv cov tswv yim - rau - cov zis piv. A1×Nconfiguration (ib lub tswv yim, N outputs) yog tus qauv hauv kev nkag mus rau hauv tes hauj lwm - cov piv txwv yog 1 × 8, 1 × 16, 1 × 32, thiab 1 × 64. A2×Nconfiguration (ob inputs, N outputs) yog siv nyob rau hauv kev tiv thaiv -hloov architectures los yog dual-feed designs. Qhov kev teeb tsa ncaj qha txiav txim siab seb lub splitter haum rau lub network: 1 × 32 splitter tso cai rau ib qho chaw nres nkoj OLT PON los pab txog 32 tus neeg siv khoom.
Tshaj qhov chaw nres nkoj suav, PLC splitters kuj raug cais raws lisib npaug(sib npaug zog rau tag nrho cov zis) los yogtsis sib npaug(ib qho piv txwv tau xa mus rau cov chaw nres nkoj tshwj xeeb). Feem ntau PON deployments siv sib npaug sib faib. Cov qauv tsim tsis sib npaug yog siv rau hauv cov xwm txheej tshwj xeeb - piv txwv li, 1 × 5 qhov tsis sib npaug ntawm qhov sib cais tuaj yeem faib 50% ntawm cov khoom siv hluav taws xob rau ib qho channel thiab faib cov seem 50% sib npaug ntawm lwm plaub, ua haujlwm qhov xwm txheej uas ib ceg khiav mus deb dua thiab xav tau ntau qhov muag pom.
Insertion Poob los ntawm Split Ratio
Txhua qhov sib cais faib lub zog kho qhov muag, thiab qhov poob no yog ntsuas hauv decibels (dB). Qhov siab dua qhov sib cais, qhov ntau duapoob poob. Tus nqi siab tshaj plaws, raws Telcordia GR-1209-CORE specifications:
| Split Ratio | Max Insertion poob (dB) | Daim ntawv thov |
|---|---|---|
| 1×2 | 4.0 | Saib xyuas cov kais dej, taw tes - rau - taw tes txuas ntxiv |
| 1×4 | 7.4 | Kev faib tsev me me, ua ntej -theem faib |
| 1×8 | 10.5 | MDU faib, cascaded theem ob |
| 1×16 | 13.5 | Nruab nrab -qhov ntom ntom FTTH |
| 1×32 | 17.0 | Txheem GPON nroog FTTH |
| 1×64 | 21.0 | High - ntom, yuav tsum tau Class C+ lossis siab dua |
Vim li cas cov lus no tseem ceeb: hauv GPON system, lub splitter yog ib qho kev poob loj tshaj plaws hauv tag nrho qhov txuas. A Class B + transceiver muab 28 dB tag nrho cov peev nyiaj; Chav Kawm C + muab 32 dB. Ib tug 1 × 32 splitter ib leeg siv roughly 17 dB, tawm hauv seem rau fiber ntau attenuation (~ 0.35 dB / km ntawm 1310 nm), connectors, thiab splices. Raws liAPNIC's GPON fais fab kev txheeb xyuas nyiaj txiag, ua tsis tau account rau splitter poob yog feem ntau ua rau undersized link pob nyiaj siv. Qhov no yog vim li cas kev sib faib piv yuav tsum pib los ntawm cov peev nyiaj kho qhov muag - tsis yog los ntawm cov neeg suav.
PLC Splitter Ntim Hom
Hom pob txiav txim siab qhov twg thiab yuav ua li cas lub splitter tuaj yeem ntsia tau. Hauv kev xa tawm, xaiv cov pob tsis raug tsim teeb meem ntau dua li kev xaiv qhov sib faib tsis raug. Txhua daim foos ua haujlwm pabcuam ib puag ncig kev teeb tsa tshwj xeeb:
- PLC fiber ntau splitter- feem ntau compact daim ntawv, nrog nthuav tawm 250 μm fibers. Siv nyob rau hauv splice kaw los yog aerial enclosures qhov twg lub splitter yuav fusion-splice rau hauv cable cog. Tus nqi qis tshaj plaws, tab sis yuav tsum muaj kev txawj ntse splicing thiab tsis muaj kev sib txuas yooj yim.
- Blockless PLC splitter- me ntsis tiv thaiv nrog 900 μm nruj - buffered pigtails. Fits hauv cov thawv ntim khoom ntim thiab cov khoom siv davhlau ya nyob twg uas sib txuas sib txuas.
- ABS PLC splitter- nyob hauv cov nplaim taws- cov ntaub ntawv yas ABS yas nrog lub Hoobkas- txuas pigtails. Cov pob ntau tshaj plaws rau cov txee sab hauv tsev, ODFs, thiab cov thav ntawv faib khoom. Yooj yim rau lis, nruab, thiab hloov.
- LGX lub thawv PLC splitter- modular cassette uas haum tus qauv LGX chassis lossis 19-nti racks. Txaus siab rau kev tswj hwm fiber ntau hauv cov chaw ua haujlwm hauv nruab nrab lossis cov khoom siv chav nrog ntau qhov sib cais hauv ib lub khib nyiab.
- Khib Mount PLC splitter- ua tiav 19-inch khib chav ua ke nrog splitter, adapters, thiab cable tswj hauv ib lub chassis. Siv nyob rau hauv loj-scale chaw ua hauj lwm deployments qhov twg kaum ob ntawm PON ports xav tau centralized splitting.
Cov kev xaiv logic yog ncaj nraim: splice kaw lossis aerial box → liab qab fiber ntau los yog blockless; sab hauv tsev txee lossis ODF → ABS; Central chaw ua hauj lwm khib → LGX los yog khib mount. Qhov yuam kev kom tsis txhob yog xaiv raws tus nqi ib leeg - ib qho pheej yig dua liab qab fiber ntau splitter nyob rau hauv ib lub txee uas yuav tsum tau nquag re- thaj ua rau thaj yuav raug nqi ntau dua hauv kev ua haujlwm hauv lub neej ntawm lub network.
PLC Splitter vs FBT Splitter: Thaum Yuav Siv Qhov twg
PLC thiab FBT yog ob lub thev naus laus zis siv los ua cov khoom siv kho qhov muag. Ob leeg yog passive, tab sis lawv cov kev ua tau zoo thiab cov yam ntxwv ntawm tus nqi sib txawv heev ntawm kev sib cais ntau dua.
| Parameter | PLC Splitter | FBT Splitter |
|---|---|---|
| Technology | Planar waveguide lithography ntawm silica | Fused biconical taper - fibers fused thiab rub |
| Wavelength ntau | 1260-1650 nm (tag nrho band) | Optimized rau qhov rais tshwj xeeb (1310/1490/1550 nm) |
| Max split ratio (ib qho khoom siv) | Mus txog 1 × 64 | Tswv yim txwv ~ 1 × 8; siab dua yuav tsum tau cascading |
| Tso zis uniformity | Tsawg dua los yog sib npaug rau 0.5 dB variation | Ntau qhov sib txawv, tshwj xeeb tshaj yog saum 1 × 4 |
| Kub stability | Nyob ruaj khov ntawm −40℃rau +85 degree | Ntau rhiab heev rau kev hloov pauv |
| Nqi ntawm 1 × 2 | Siab dua | qis |
| Nqe ntawm 1 × 32 | Lower rau qhov chaw nres nkoj | Siab dua - cascading ntxiv tus nqi |
| Zoo tshaj plaws | GPON/XGS-PON, FTTH, ib qho piv txwv saum toj no 1 × 8 | Yooj yim 1 × 2 los yog 1 × 4 kais, CATV saib xyuas, tus nqi -sensitive low- piv txwv |
Txoj cai txiav txim siab siv tau: yog tias kev xa tawm yogPON-raws li kev faib tawmntawm ib qho piv txwv ntawm 1 × 8 lossis siab dua, PLC yog tus qauv thev naus laus zis. FBT tsuas yog qhov kev xaiv zoo dua ntawm qhov sib faib qis heev (1 × 2, 1 × 4) qhov twg nws cov nqi qis dua nws qhov kev txwv tsis pub ua haujlwm. Sib piv ob qho tib si los ntawm tus nqi yam tsis xav txog qhov sib xws, kev txhawb nqa wavelength, thiab scalability ua rau kev txiav txim siab tsis zoo - tshwj xeeb tshaj yog nyob rau hauv tes hauj lwm uas yuav xav tau kev hloov pauv kev sib faib tom qab.
Yuav Ua Li Cas Xaiv Txoj Cai PLC Splitter
Xaiv lub PLC splitter yog plaub - cov txheej txheem uas pib los ntawm cov kev txwv hauv lub network thiab ua haujlwm rau cov khoom specification - tsis yog lwm txoj hauv kev. Cov kev xaiv txhim khu kev qha tshaj plaws yog: pob nyiaj siv hluav taws xob kho qhov muag → faib piv → pob thiab txuas → cov ntaub ntawv pov thawj. Pib los ntawm cov khoom lag luam catalog lossis ib hom khoom nyiam, tsis yog los ntawm cov peev nyiaj sib txuas, yog qhov ua rau feem ntau ntawm kev xaiv tsis sib haum xeeb hauv thaj teb.
Kauj Ruam 1: Xam cov nyiaj siv hluav taws xob kho qhov muag ua ntej
Pib ntawm no, tsis yog nrog cov neeg suav. Txiav txim siab OLT transceiver chav kawm (B+=28 dB, C+=32 dB, C++=35 dB), rho tawm qhov kwv yees fiber ntau attenuation thiab connector/splice poob los ntawm tag nrho cov peev nyiaj, thiab qhov seem yog qhov siab tshaj plaws splitter insertion poob qhov txuas tuaj yeem zam. Tus lej ntawd txwv qhov kev sib faib sib faib ua tau. Ib qho kev npaj ua yuam kev yog xaiv 1 × 64 splitter vim tias 60 cov neeg siv khoom yuav tsum tau txais kev pabcuam, yam tsis tau kuaj xyuas seb 21 dB qhov kev poob qis ntxiv rau cov fiber ntau thiab cov khoom sib txuas puas haum rau hauv cov peev nyiaj muaj.
Kauj ruam 2: Match Split Ratio rau Deployment Architecture
Nrog rau qhov poob peev nyiaj tsim, phim qhov piv rau cov phiaj xwm network:
- 1 × 4 lossis 1 × 8- lub tsev- theem kev faib tawm lossis cov theem ib leeg nyob rau hauv ib qho cascaded (ob-theem) architecture qhov twg 1 × 4 thawj theem pub ntau 1 × 8 thib ob theem.
- 1×16- nruab nrab- thaj chaw ntom ntom, lossis theem thib ob tom qab 1 × 2 thawj qhov sib cais.
- 1×32- qhov feem ntau siv dav hauv tus qauv GPON FTTH. Ua haujlwm nrog Chav B + lossis C + tshaj qhov deb mus txog ~ 15 km.
- 1×64- siab- qhov xwm txheej ceev nkaus xwb; yuav tsum tau Class C + lossis siab dua thiab luv dua fiber ntau khiav.
Qhov tseem ceeb hauv kev loj hlob: yog tias qhov kev thov tam sim no qhia 1 × 16 tab sis thaj chaw yuav loj hlob, xa 1 × 32 tam sim no nrog cov chaw nres nkoj tsis siv feem ntau pheej yig dua li re-spling tom qab.
Kauj ruam 3: Match Package thiab Connector mus rau qhov chaw teeb tsa
Cov kauj ruam no yog qhov chaw teeb meem feem ntau tshwm sim. Txiav txim siab lub cev lub cev hom - splice kaw, faib txee, ODF, los yog khib - thiab xaiv lub pob hom raws li (saib cov pob hom ntu saum toj no rau daim ntawv qhia). Nyob rau tib lub sijhawm, paub meej tias hom kev sib txuas: SC / APC yog tus qauv hauv GPON vim tias lub kaum sab xis txo qis rov qab - qhov cuam tshuam tseem ceeb rau kev tshaj tawm video ntawm 1550 nm. Yog hais tias qhov kev pab cuam sivLC connectorsrau qhov chaw nres nkoj siab dua, txheeb xyuas lub splitter lub pigtail thiab adapter vaj huam sib luag. Kuj txiav txim siab seb puas ua ntej -connectorized los yog liab qab-fiber pigtails zoo dua haum rau txoj kev teeb tsa - ua ntej-connectorized yog sai dua rau kev xa tawm, liab qab- fiber ntau muaj kev hloov pauv ntau dua yog tias cov qauv sib txuas yuav hloov.
Kauj Ruam 4: Txheeb xyuas cov kev qhia tshwj xeeb tiv thaiv cov ntaub ntawv
Ua ntej kev txiav txim, xyuas cov kev txwv no tiv thaiv cov chaw tsim khoom cov ntaub ntawv luam tawm:
- Insertion poob- yuav tsum tsis txhob tshaj qhov muaj nuj nqis hauv cov lus saum toj no rau qhov kev xaiv cais.
- Kev tsis sib xws- qhov siab tshaj qhov nkag tsis sib txawv ntawm ob qhov chaw tso zis; yuav tsum tsawg dua los yog sib npaug rau 0.5 dB ibTelcordia GR-1209-COREyam.
- Rov qab poob- Ntau dua lossis sib npaug rau 55 dB rau APC, Ntau dua lossis sib npaug rau 50 dB rau UPC. Yog xav paub ntxiv ntawm ob qhov kev ntsuas no, saib peb phau ntawv qhia ntawminsertion poob vs rov poob.
- Ua haujlwm wavelength- 1260–1650 nm rau tag nrho -band GPON + video overlay kev them nyiaj yug.
- Qhov kub thiab txias- −40℃rau +85℃rau sab nraum zoov- ntsuas kev xa tawm.
- Ua raws- Telcordia GR-1209-CORE (kev ua tau zoo) thiab GR-1221-CORE (kev ntseeg tau ntev).
Yog tias tus neeg muag khoom tsis tuaj yeem muab cov ntaub ntawv muaj txiaj ntsig rau qhov sib xws thiab rov qab poob - tsis yog qhov poob qis - kho qhov ntawd raws li tus chij liab. Lub network tsim nrog 25-xyoo FTTH kev ua neej nyob xav tau cov khoom tsim nyog rau cov qauv kev ntseeg siab, tsis yog ua haujlwm thaum lub sijhawm teeb tsa.
FAQ Txog PLC Splitters
Puas yog PLC splitter passive lossis nquag?
Passive. Nws faib cov teeb liab kho qhov muag yam tsis muaj hluav taws xob hluav taws xob, uas yog vim li cas nws yog ib qho tseem ceeb ntawm cov khoom siv kho qhov muag tsis pom kev.
Dab tsi yog qhov poob ntawm 1 × 32 PLC splitter?
Qhov siab tshaj qhov poob yog feem ntau 17.0 dB ib Telcordia GR-1209-CORE. Cov txiaj ntsig tiag tiag los ntawm cov tuam txhab tsim khoom zoo feem ntau qis dua me ntsis (ib puag ncig 15.5-16.5 dB), nyob ntawm tus qauv tsim thiab cov khoom sib txuas zoo.
Dab tsi yog qhov txawv ntawm PLC splitter thiab optical splitter?
"Optical splitter" yog cov ntsiab lus dav dav uas suav nrog PLC thiab FBT thev naus laus zis. Lub PLC splitter yog hom tshwj xeeb raws li kev tsim qauv waveguide fabrication. Hauv PON network cov ntsiab lus, "optical splitter" yuav luag txhua zaus txhais tau tias PLC splitter.
PLC splitters puas tuaj yeem siv sab nraum zoov?
Yog lawm. PLC splitters ntsuas rau −40℃rau +85℃yog tsim rau ob qho tib si sab hauv tsev thiab sab nraum zoov ib puag ncig. Rau kev siv sab nraum zoov, liab qab fiber ntau lossis blockless pob yog feem ntau ntsia rau hauv IP- ntsuas qhov sib txuas kaw lossis cov ntaub thaiv huab cua tsis zoo.
PLC splitter twg yog qhov zoo tshaj rau GPON FTTH?
Qhov feem ntau configuration rau tus qauv GPON FTTH yog 1 × 32 sib npaug PLC splitter nrog SC / APC connectors. Pob hom nyob ntawm qhov chaw teeb tsa: ABS rau cov khoom faib khoom, LGX rau khib-raws li kev teeb tsa, liab qab fiber ntau rau splice kaw.
Kuv yuav tsum kuaj dab tsi ntawm daim ntawv teev npe ua ntej yuav khoom?
Txheeb xyuas qhov poob siab tshaj plaws rau koj qhov sib piv, qhov tso zis sib xws (tsawg dua lossis sib npaug li 0.5 dB), rov qab poob (Ntau dua lossis sib npaug rau 55 dB rau APC), kev ua haujlwm wavelength ntau (1260-1650 nm), qhov kub thiab txias, thiab Telcordia GR-1209 / GR-1221 ua raws.
Xaus
PLC splitter yog ib qho khoom siv ncaj nraim nrog txoj haujlwm ncaj nraim: faib ib lub teeb liab kho qhov muag rau ntau txoj hauv kev kom ib leeg fiber ntau tuaj yeem pab ntau tus neeg siv khoom. Tab sis xaiv qhov yog yuav tsum tau ua hauj lwm los ntawm ib theem zuj zus - optical pob nyiaj ua ntej, ces faib piv, ces pob thiab connector, ces datasheet verification. Hla ib kauj ruam, los yog pib los ntawm cov khoom daim ntawv es tsis txhob ntawm lub network txwv, yog qhov uas feem ntau xaiv yuam kev tshwm sim.
