I-GFH1000-K FTTH CATV isamukeli esine-WDM ukuya ku-ONU
Incazelo Yomkhiqizo
I-GFH1000-K iyifayibha ye-CATV engu-1550nm eya esamukelini esibonakalayo sasekhaya esine-1310nm/1490nm WDM loop out port. Ngemuva komkhankaso we-fiber deep, indawo yokusebenzela ye-HFC CATV ye-optical receiver iyehla isuka kwababhalisile abangu-2000, iye kwababhalisile abangu-500, ababhalisile abangu-125, ababhalisile abangu-50 futhi manje ababhalisile oyedwa lapho i-fiber ifika ekhaya. Njengoba umsebenzi we-inthanethi udluliselwa ku-GPON noma i-XGPON, i-GHF1000-K inobubanzi obungu-45MHz ukuya ku-1000MHz noma umkhawulokudonsa ogcwele we-RF ongu-1218MHz wesevisi yokusakaza ye-TV.
I-GFH1000-K inembobo yokufaka eyodwa yokubona, imbobo ye-fiber wdm eyodwa, okokufaka kwamandla okungu-12V DC kanye nokuphumayo kwe-RF okukodwa. Njengamadivayisi omndeni we-ONU, i-GFH1000-K inezindlu zepulasitiki ezibuyisela emuva ilangabi elinezindlu zensimbi zangaphakathi ukuze kuqinisekiswe ukuhlukaniswa nokusebenza kwe-RF.
Ngomklamo owakhelwe ngaphakathi we-AGC, i-GFH1000-K iyipulaki nedivayisi yokudlala efakwa kalula ekhaya noma kuhlelo lokusebenza lwe-SOHO. Ine-linearity photodiode ephezulu nomsindo ophansi we-GaAs amplifier, ikhipha i-RF yekhwalithi ephezulu ye-analog TV noma i-digital QAM TV yesethi ye-TV eyodwa noma ngaphezulu emndenini owodwa. Amandla okufakwayo angu-1550nm angaba phansi njengo -15dBm uma isignali ye-RF iyi-DVB-C QAM noma -8dBm uma isignali ye-RF iyi-analog TV. Imbobo ye-RF inokuvikelwa kokukhuphuka futhi izinga lokuphuma kwe-RF lingalungiseka uma inketho ye-MGC yenziwe yasebenza.
Okokufaka kwe-1550nm yesignali yomkhawulokudonsa ingaba yi-1525nm ~ 1565nm isignali ye-optical ebanzi nebhendi encane engu-1550nm ~ 1560nm isignali yokubona. I-WDM ingasekela i-GPON engu-1310nm/1490nm evamile noma i-1270nm/1577nm XGPON noma i-NGPON2. I-GFH1000-K inganika amandla i-Greatway ONU nanoma iyiphi inkampani yangaphandle ye-ONU enomsebenzi we-RF wokusakaza iziteshi ze-RF.
Ezinye izici:
• Izindlu zepulasitiki eziqinile ezivimba amalangabi.
• I-High Linearity Photodiode ye-CATV RF.
• 45~1000MHz (ezansi komfula) Okukhiphayo kwe-RF (ongakukhetha okungu-45~1218MHz).
• Ibanga le-Optical AGC: -10dBm ~ 0dBm.
• Ibanga le-MGC ongazikhethela lona: 0~15dB.
• Imbobo ye-Optical Bypass engu-1310nm/1490nm ukuya ku-ONU.
• I-WDM ingathuthukiswa ukuze ifake imbobo ekhanyayo engu-1270nm/1577nm ye-XGPON ONU.
• Isikhombi se-LED samandla ne-optical input.
• I-adaptha yamandla engu-12V DC.
