4 Ihlala phezu kwe-GPON
I-Nilesat, i-Eutelsat 8W, i-Badr 4/5/6/7 kanye ne-Es'hail 2, i-Hot Bird 13E amasathelayithi adumile empumalanga emaphakathi.Abantu bayathanda ukuwabuka.Kungumsebenzi onzima emndenini owodwa ukufaka izitsha ezine zesathelayithi ezinikeza isathelayithi eyodwa kuphela.Kungumsebenzi onzima kwababhalisile abahlala esakhiweni esisodwa ukwabelana ngezitsha ezine zesathelayithi phezu kwenqwaba yamakhebuli angama-coaxial.I-inthanethi iyisidingo esiphezulu esibalulekile kule planethi.Uma kune-GPON fiber kobhalisile ngamunye, i-Greatway Technology yenza lo msebenzi ube lula ngezindleko ezithengekayo.Lesi siphakamiso sinikeza isisombululo samasathelayithi angu-4 akhethiwe e-FTA ethandwa kakhulu noma okuqukethwe okubethelwe i-FTTH kwababhalisile abangaba ngu-2800 be-GPON ONU.
I-Satellite Transponders Ihlelwe yi-dCSS LNB kumodi emile
Isathelayithi ngayinye inama-transponder angu-10~96.Okuqukethwe okungu-20% kudumile kwababhalisile abangu-80%.Ukonga izindleko zekhaya ngalinye le-FTTH, sivele sikhethe ama-transponder adumile angama-32 (Amabhendi Womsebenzisi angama-32) kusuka kusethingi ngayinye kuya kuwo wonke amakhaya e-GPON.Ukwenza lokhu, sidinga i-4pcs dCSS LNB emile ene-32UB ekhethiwe yesethelayithi ngayinye.(Sincoma ukusebenzisa i-Inverto dCSS LNB kanye ne-SatPal noma imikhiqizo efanayo. I-Greatway ingahlinzeka i-dCSS LNB ngokukhipha okumile okungaguquki okungu-32UB uma sazi igama lesethelayithi yakho kanye nama-transponder angu-32 oyifunayo kungaba Ngokuvundlile noma Ngokuqondile).
Ukuguqulwa kwesignali ye-DTT
I-DTT ihlinzekwa ngama-opharetha ambalwa edolobheni kanti imibhoshongo yokudlulisa i-DTT ingase ime ezindaweni ezahlukene zedolobha.Isignali ye-DTT eduze kombhoshongo we-DTT ingase ibe namandla ukufaka isethi ye-TV ngokuqondile.Ukuze ugweme ukuphazamiseka okufanayo kwefrikhwensi, kuyanconywa ukuthi uguqule yonke ifrikhwensi yenkampani yenethiwekhi ye-DTT ngaphambi kokufaka isidluliseli se-Terr TV.Kule phrojekthi, kukhona abathwali be-Terrestrial RF: VHF7 kanye ne-UHF32, UHF36.Siphakamisa ukusebenzisa isiguquli esisodwa se-GTC250 se-terrestrial TV ukuze sibe namafrikhwensi amasha alandelayo e-Terrestrial TV: i-VHF8, ne-UHF33 ne-UFH31 (Ngenxa yezinga le-PAL-B/G nezici zesignali ye-DTT, sincoma ukuguqulwa kwe-VHF kuya ku-VHF kanye ne-UHF ku-UHF ).I-GTC250 inokufakwayo okune kwe-VHF/UHF nokukodwa kufika kokuphumayo okuphezulu okungu-32ch DTT RF.I-1pcs GTC250 ingakhipha i-3ch DTT RF yekhwalithi ephezulu ehlanzekile (ngayinye ezingeni le-85dBuV RF) iye kusidlulisi se-optical, ihlunge noma ivimbe amasiginali weselula we-4G ne-5G.
I-Optical Transmitter
I-1pcs GLB3500M-4TD DWDM optical transmitter ithola okokufaka kwesathelayithi okungu-4x32UB nokokufaka okukodwa kwe-DTC250 terrestrial RF, kuziguqule zonke zibe ngaphezu kwe-1550nm DWDM SM fiber.
I-GLB3500M-4TD i-optical transmitter kufanele ifakwe endlini.Ikhebuli ye-RG6 coaxial kubude be-dCSS LNB ngayinye kufanele ibe ngaphansi kwamamitha angu-50.
I-Optical Splitter
Njengoba bonke ababhalisile be-GPON abangu-2800 behlelwe yi-1x16 splitter, okungenani kunamaqembu angu-175.
I-GLB3500M-4TD inamandla acishe abe ngu-+9dBm, azolandelwa yisihlukanisi esingu-1pcs 1x4 PLC kuqala.Phakathi kokuphuma kwe-4 okuhlukanisiwe, ukuphuma kwe-splitter engu-3 kuxhunywe namandla aphezulu angu-3pcs GWA3500-34-64W ngokulandelanayo.1 okukhiphayo kwesihlukanisi njengembobo elindile.
I-Optical Amplifier
Isamukeli se-GWA3500-34-64W ngasinye sinokufaka okukodwa okungu-1550nm, okokufaka okungu-64 OLT, kanye namachweba angama-64, lapho izimbobo ze-com zine>+12dBm@1550nm.Imbobo ngayinye ye-com ixhunywe nesihlukanisi se-PON esingu-1x16, esinikeza kokubili i-TV ne-GPON Ethernet.
I-GWA3500-34-64W iamplifier ebonakalayo kufanele ifakwe eduze kwe-GPON OLT noma eduze kwehabhu yekhebula lefayibha.Ama-3pcs GWA3500-34-64W ama-optical amplifiers anamachweba okukhiphayo angu-192, ngaphandle kwamachweba axhunyiwe angu-175, amachweba angasetshenzisiwe njengamachweba alindile.
Isistimu ye-GPON yangaphambili kufanele ibe nesihlukanisi esingu-1x16 esifakiwe.Sizibale ku-BOM uma udinga isihlukanisi esingu-1x16.
I-Optical Receiver kanye ne-GPON ONU
Ku-GPON ONU ngayinye, siphakamisa ukuthi kusetshenziswe i-adaptha eyodwa ye-SC/UPC kanye nemitha engu-1 duplex SC/UPC ukuya ku-LC/UPC jumper, lapho ifayibha engu-1 iguqulela i-SC/UPC fibre engenayo ibe yi-LC/UPC ibe yi-GLB3500M-4RH4-K yokubona i-LNB kanye enye iguqula isignali ye-loop out ye-GPON ibuyele ku-SC/UPC iye ku-GPON ONU ekhona.
I-GLB3500M-4RH4-K inezimbobo ezine ze-RF, imbobo ngayinye ye-RF inikeza okuqukethwe kwesathelayithi okungu-4x32UB kanye ne-TV yasemhlabeni.Uma kunamadekhoda asesathelayithi angaphezu kuka-4 endaweni ngayinye ye-GPON ONU, imbobo ngayinye ye-RF ye-GLB3500M-4RH4-K ingaxhunywa ngesihlukanisi sesathelayithi sezindlela ezi-4 noma ezingu-8 ukuze sisekele izamukeli zesathelayithi eziyi-16 noma ezingu-32, lapho isihlukanisi sesathelayithi sinendlela eyodwa. imbobo eyodwa ye-RF idlula i-DC kuphela.Umamukeli wesathelayithi oxhuma nechweba elidlulayo le-DC likhetha isathelayithi e-1 kwamane, izamukeli zesathelayithi ezixhumeka ngaphandle kwechweba le-DC zibuka okuqukethwe kwesathelayithi okungu-32UB okukhethiwe.
Isamukeli sesathelayithi
Isamukeli esivamile esisekela ukusesha okuqukethwe kwamasathelayithi amaningi singabuka konke okuqukethwe kwe-FTA nokuqukethwe okubethelwe ngekhadi le-CA.Asikho isidingo sokusebenza esingafinyeleleki kumamukeli wesathelayithi.
I-Fiber Jumper
Ngenxa yokuminyana okuphezulu kwe-EYDFA, singase sisebenzise isixhumi se-LC/UPC esikhundleni sesixhumi se-SC/UPC.Kufanele kube khona i-fiber patchcord egxumayo efana ne-LC/UPC iye ku-SC/UPC noma i-LC/APC ku-SC/APC.
Ukuze uthole ulwazi olugcwele, sicela uhlole ifayela le-pdf noma uthinte i-Greatway Technology.