Vim li cas thiaj ntxig Satellite hla GPON
Direct Broadcasting Satellite (DBS) thiab Direct to Home (DTH) yog txoj kev nyiam tshaj plaws rau kev txaus siab rau satellite TV thoob ntiaj teb.Txhawm rau ua nws, satellite kav hlau txais xov, coaxial cable, splitter lossis multi-switcher thiab satellite receiver yog tsim nyog.Txawm li cas los xij, kev teeb tsa satellite kav hlau txais xov yuav nyuaj rau cov neeg siv khoom nyob hauv cov tsev.SMATV (satellite master antenna TV) yog ib qho kev daws teeb meem zoo rau cov neeg nyob hauv lub tsev lossis cov zej zog sib koom ua ib lub phaj satellite thiab terrestrial TV kav hlau txais xov.Nrog fiber ntau cable, SMATV RF teeb liab tuaj yeem xa mus rau 20Km deb lossis faib rau 32 chav ncaj qha, mus rau 320 lossis 3200 lossis 32000 chav tsev ntawm GWA3530 fiber optic amplifier.
Puas yog qhov no txhais tau tias satellite MSO lossis satellite system integrator yuav tsum nruab tus kheej fiber ntau cable rau txhua tus neeg siv khoom?Tawm ntawm chav kawm, peb xav tau fiber ntau rau txhua tus neeg siv khoom yog tias peb tuaj yeem ua tau, tab sis nws tsis tsim nyog yog tias muaj GPON fiber ntau rau hauv tsev lawm.Qhov tseeb, tt yog txoj hauv kev sai rau peb siv GPON fiber ntau uas yog Telecom MSO.Internet yog ib qho kev xav tau tseem ceeb tshaj plaws rau txhua tsev neeg.GPON (1490nm / 1310nm) lossis XGPON (1577nm / 1270nm) yog cov thev naus laus zis nrov raws li fiber ntau rau hauv tsev: ib qho kho qhov muag kab davhlau ya nyob twg (OLT), 1x32 lossis 1x64 lossis 1x128 PLC fiber ntau splitter, tsawg dua 20Km fiber ntau qhov chaw nyob deb thiab (ONU) hauv tsev neeg, tib lub network topology peb xav tau.Satellite teeb liab yog nqa ntawm 1550nm optical qhov rais, peb tsuas yog input OLT fiber ntau ntawm GWA3530 1550nm optical amplifier OLT chaw nres nkoj, tsis ua dab tsi ntawm PLC splitter thiab fiber ntau cable.Ntawm txhua tus neeg siv khoom hauv tsev peb siv ib qho SC / UPC rau SC / UPC fiber ntau jumper nrog rau kho qhov muag LNB rau ONU, ces satellite RF rau txhua txoj haujlwm hauv tsev tuaj yeem ua tiav hauv 5 feeb.
Hauv cov ntsiab lus, peb yuav tau nruab fiber ntau rau txhua lub tsev rau satellite TV hauv zej zog nrog ntau pua tus neeg siv khoom.Hauv ib lub nroog ntawm txhiab tus neeg siv khoom lossis hauv nroog ntau pua txhiab tus neeg siv khoom, ntxig TV satellite tshaj GPON fiber ntau yuav ua tau zoo dua thiab muaj txiaj ntsig ua lag luam rau ob tus neeg teb xov tooj satellite thiab GPON tus neeg teb xov tooj.
Puas yog Telecom MSO txaus siab los qhia GPON fiber ntau?Nws tuaj yeem nyuaj thiab nws tuaj yeem yooj yim.GPON muaj 2.5Gbps nqis ntws mus rau 32 lossis 64 lossis 128 tus neeg siv khoom uas IPTV lossis OTT video siv feem ntau ntawm cov bandwidth.Lub OTT xws li Netflix thiab lwm yam tsis them nyiaj rau GPON MSO hauv zos thiab muaj ntau OTTs dua li Netflix.Satellite TV tau ntxim nyiam dua vim nws cov ntsiab lus.Yog tias tus neeg siv xov tooj cua txaus siab los qhia cov nyiaj tau los txhua hli nrog GPON tus neeg teb xov tooj, tus neeg teb xov tooj satellite tuaj yeem muaj 30K, lossis 300K ntxiv cov neeg siv khoom hauv lub sijhawm luv luv (cov neeg siv khoom no tsis tuaj yeem teeb tsa satellite tais diav);thiab GPON tus neeg teb xov tooj tuaj yeem muaj txiaj ntsig ntxiv rau lawv cov neeg siv khoom thiab txhim kho kev pabcuam hauv internet zoo.
