GFH1000-K FTTH CATV qaataha leh WDM ilaa ONU
Sharaxaada Alaabta
GFH1000-K waa 1550nm CATV fiber ah oo ku socda qaataha indhaha ee guriga oo leh 1310nm/1490nm WDM loop dibadda ah. Ka dib ololaha qoto dheer ee fiber-ka, HFC CATV aagga adeega qaabilaadaha indhaha ayaa hoos u dhacaya min 2000 macaamiil, ilaa 500 macaamiil, 125 macaamiil, 50 macaamiil ah iyo hadda hal macaamiil marka fiber guriga la geeyo. Maadaama shaqada intarneetka loo wareejiyo GPON ama XGPON, GHF1000-K waxay haysataa 45Mhz ilaa 1000MHz ama 1218Mhz oo buuxa oo RF ah oo loogu talagalay adeega baahinta TV-ga.
GFH1000-K waxay leedahay hal deked wax gelinta indhaha ah, hal deked fiber wdm ah, hal gelinta korantada 12V DC iyo hal wax soo saar RF ah. Sida aaladaha qoyska ONU, GFH1000-K waxay leedahay guryo caag ah oo ololaya oo leh guryo xaashida gudaha ah si loo hubiyo go'doominta RF iyo waxqabadka.
Naqshadaynta AGC ee ku dhex dhisan, GFH1000-K waa fur iyo qalab ciyaar si fudud loogu rakibay guriga ama codsiga SOHO. Waxay leedahay photodiode toosan oo sarreeya iyo cod-weyneeye GaAs hooseeya, waxay soo saartaa RF tayo sare leh mid ka mid ah TV-ga analogga ah ama dhijitaalka ah ee QAM TV hal ama in ka badan oo TV-ga hal qoys ah. Awood gelinta indhaha ee 1550nm waxay noqon kartaa ilaa -15dBm marka calaamada RF ay tahay DVB-C QAM ama -8dBm marka calaamada RF uu yahay TV-ga analogga ah. Dekadda RF waxay leedahay ilaalin sare oo heerka wax soo saarka RF waa la hagaajin karaa haddii ikhtiyaarka MGC la hawlgeliyo.
Xirmooyinka 1550nm signal bandwidth waxay noqon kartaa 1525nm ~ 1565nm wideband signal optic iyo band cidhiidhi ah 1550nm ~ 1560nm signal indhaha. WDM waxay taageeri kartaa 1310nm/1490nm GPON joogto ah ama 1270nm/1577nm XGPON ama NGPON2. GFH1000-K waxay awood u siin kartaa Greatway ONU ama qolo kasta oo saddexaad ONU oo leh shaqada RF ee baahinta kanaalada RF.
Sifooyin kale:
• Guryo dib u dhiga ololka balaastiga ah.
• Photodiode Linearity High ee CATV RF.
• 45 ~ 1000MHz (hoos) Wax soo saarka RF (45 ~ 1218MHz ikhtiyaari ah).
• Kala duwanaanshaha AGC indhaha: -10dBm ~ 0dBm.
• Kala duwanaanshaha MGC ee ikhtiyaarka ah: 0 ~ 15dB.
• 1310nm/1490nm Optical Bypass Port ilaa ONU.
• WDM waa la cusboonaysiin karaa oo lagu daraa 1270nm/1577nm deked milicsiga XGPON ONU.
• Awoodda DC iyo tusiyaha iftiinka indhaha ee LED.
• adabtarada korantada ee 12V DC.
