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 optical 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:
• Guryaha 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 isha ee LED.
• adabtarada korantada ee 12V DC.
