Nrog rau kev siv internet thoob plaws ntiaj teb no, qhov kev xav tau video streaming siv feem ntau hauv kev ua lag luam TV lom ze ntawm tus kheej. Nyob TV los ntawm satellites tseem ua lub luag haujlwm tseem ceeb hauv tsev neeg TV lossis tog TV lom zem ua lag luam. Satellite MSOs yuav tsum muaj cov ntsiab lus TV zoo heev kom nyiam thiab khaws cov neeg siv khoom. Tsis zoo li FTA cov ntsiab lus, lub dominating satellite MSOs muaj CA encrypted TV ntsiab lus. Txawv satellite MSO muaj nws cov ntsiab lus tshwj xeeb los sib tw hauv kev ua lag luam. Cov neeg siv yuav nyiam saib ntau dua ib lub satellite thaum lub satellite tshiab tuaj yeem muab cov ntsiab lus sib txawv.
Kev teeb tsa lub rooj zaum yog qhov nyuaj heev rau ib lub tsev kom them taus ntau lub tais. Txawm li cas los xij, lub zej zog fiber ntau lossis lub nroog fiber ntau ua rau nws yooj yim dua los faib ob lub satellites lossis plaub lub satellites rau ntau lub tsev. Ntawm qhov tod tes, tus tswv fiber ntau tuaj yeem muaj txiaj ntsig ntau ntxiv los ntawm kev muab kev pabcuam xa xov tooj cua. Txhua tus neeg siv FTTH tuaj yeem xaiv satellite A lossis satellite B lossis ob qho tib si satellite ntsiab lus.
DirecTV thiab tais, TataPlay thiab Airtel, Ntuj Mexico thiab tais Mexico, Nilesat thiab Arabsat, thiab lwm yam, Greatway Technology satellite TV fiber ntau cov khoom ua rau cov satellite ua ke muaj nyob hauv tsev uas muaj fiber ntau.
Rau lub satellite MSO nrog tsawg dua 32 transponders, cov duab saum toj no ua haujlwm rau txhua tus neeg siv FTTH kom txaus siab rau ib zaum lossis ob zaum cov ntsiab lus.GLB3500M-2Toptical transmitter converts ob ntxaib LNB RFs los ntawm ob satellites thiab Terrestrial TV (174 ~ 700MHz) RF rau hauv ib tug 1550nm fiber ntau los ntawm ib lub tsev ru tsev. Optical tso zis ntawm GLB3500M-2T tuaj yeem tsav 32pcs optical receivers ncaj qha los ntawm PLC fiber ntau splitter, qhov twg ib qhoHLB 2000Aoptical receiver muab ib qho ntawm ob lub ntsiab lus satellites thiab Terr TV teeb liab rau ib qho STB thiab TV hauv ib chav tsev,GLB3500M-2R4-Koptical receiver txhawb nqa ib qho Terr TV chaw nres nkoj rau ntau lub TVs thiab 4 zaum STBs hauv ib chav tsev, txhua tus zaum STB tuaj yeem yog satellite A STB lossis satellite B STB. Yog tias tus naj npawb ntawm cov neeg siv khoom ntau dua li ntau pua lossis ntau txhiab tus neeg hauv zej zog lossis hauv nroog, peb yuav tsum muaj ib lub tshuab hluav taws xob kho qhov muagHWV 3530Tom qab GLB3500M-2T optical transmitter.HWV 3530optical amplifier muaj 8 lossis 16 lossis 32 lossis 64 chaw nres nkoj, txhua qhov chaw nres nkoj tuaj yeem tsav 16 lossis 32 lossis 64 optical receivers. Hauv lwm lo lus,HWV 3530tuaj yeem tsav 1024 optical receivers lossis 2048 optical receivers lossis 4096 optical receivers hauv 20Km fiber ntau. Nrog kev xaiv OLT input chaw nres nkoj,HWV 3530tuaj yeem ntxig satellite TV RF hla tib lub fiber ntau ntawm GPON lossis XGPON network.
Qhov zoo ntawm satellite TV FTTH:
- Ob lub tais rau 32 tus neeg siv lossis ntau txhiab tus neeg yuav khoom
- Zoo dua Satellite teeb liab zoo ntawm txhua lub davhlau ya nyob twg fiber ntau
- Fiber davhlau ya nyob twg yog ib qho yooj yim installation nyob rau hauv 5 feeb los ntawm "plug thiab ua si" tsim
- Tsis tu ncua satellite txais los ntawm Satellite A STB lossis Satellite B STB
Yog hais tias lub satellite muaj ntau tshaj 32 satellite transponders, qis band thiab siab dua band (nyob rau hauv 22KHz suab) yog qhia ntawm Quattro LNB kom tau raws li ib txwm satellite receiver 950MHz ~ 2150MHz zaus ntau yam. Peb pom zoo kom nruab ntxaib wideband LNBGWB 104Gntawm satellite tais.GWB 104GLNB muaj 10.4GHz LO zaus thiab ob lub RF tso tawm nrog bandwidth ntawm 300MHz ~ 2350MHz, piv txwv li, wideband Vertical RF yog sib npaug rau Vertical Lower (VL) thiab Vertical Higher (VH) thaum wideband Kab rov tav RF yog sib npaug rau Kab rov tav thiab qis dua (HL) Siab dua (HH). Txij li thaum wideband RF bandwidth tshaj RF bandwidth ntawm satellite receiver, peb xav tau Digital Channel Satellite Switcher (dCSS) nti los hloov wideband RF mus rau ntau yam ntawm satellite receiver. Tsis tas li ntawd, lub receiver satellite yuav tsum txhawb nqa tus qauv tsis raug.
Hauv daim duab saum toj no,GLB 3500E-4Toptical transmitter converts ob ntxaib wideband LNB RFs rau hauv ib 1550nm fiber ntau los ntawm ib lub tsev ru tsev. Optical tso zis ntawm GLB3500E-4T tuaj yeem tsav 32pcs optical receivers ncaj qha lossis ntau txhiab tus optical receivers los ntawm GWA3530 amplifier. Ntawm txhua chav tsev, ib qhoGLB3500E-4WRoptical receiver txhawb 4 unicable satellite receivers thiab ib tugGLB3500E-4WR2optical receiver txhawb 8 unicable satellite receivers. Txhua tus txais satellite tuaj yeem txiav txim siab tag nrho FTA cov ntsiab lus los ntawm ob lub satellites thiab cov ntsiab lus encrypted los ntawm CA daim npav.