I-GFH1000-KP isamukeli se-CATV esingenamandla se-ONU
Incazelo Yomkhiqizo
I-GFH1000-KP iyifayibha ye-CATV engenamandla engu-1550nm esamukeli se-optical yasekhaya ene-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 i-amplifier yamandla aphezulu isetshenziswa kakhulu ohlelweni lwe-CATV lokusakaza lwe-PON, kungenzeka ukusebenzisa isamukeli esibonakalayo esingenamandla esisebenza ku- -6dBm~-1dBm ukunciphisa izindleko zetheminali ye-FTTH kanye nokusetshenziswa kwamandla. Khonamanjalo, njengoba umsebenzi we-inthanethi udluliselwa ku-GPON noma i-XGPON, i-GHF1000-KP inomkhawulokudonsa ongu-45MHz ukuya ku-1000MHz noma ongu-1218MHz ogcwele we-RF yomkhawulokudonsa wesevisi yokusakaza ye-TV.
I-GFH1000-KP inembobo yokufaka eyodwa yokubona, imbobo yefiber wdm eyodwa kanye ne-RF eyodwa ephumayo. Njengamadivayisi omndeni we-ONU, i-GFH1000-KP inezindlu zepulasitiki ezibuyisela emuva ilangabi. Le plug nedivaysi yokudlala ifakwa kalula ekhaya noma uhlelo lokusebenza lwe-SOHO (ihhovisi elincane nehhovisi lasekhaya). Nge-photodiode yomugqa ophezulu kanye nesekhethi ehambisanayo ye-RF elungiswe kahle, i-GFH1000-KP isakhipha ikhwalithi eyamukelekayo ye-RF ye-analog TV noma i-digital QAM TV yesethi ye-TV eyodwa noma ngaphezulu emndenini owodwa. Ngokungafani nesamukeli se-GFH1000 FTTH CATV esine-amplifier ye-GaAs eyakhelwe ngaphakathi, isamukeli se-GFH1000-KP esingenamandla se-FTTH CATV sincike emandleni okufakwayo okubonayo e-EDFA, amandla okufaka okusebenza ngokukhanya angu-1550nm angatuswa aphansi aze afike ku- -6dBm uma isignali ye-RF iyi-DVB-CAM QAM noma -1dBm uma isignali ye-RF iyi-analog TV.
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-KP inika amandla noma iyiphi inkampani yangaphandle i-GPON ONU ngomsebenzi we-RF wokusakaza iziteshi ze-RF.
Ezinye izici:
• Izindlu zepulasitiki eziqinile ezivimba amalangabi.
• I-High Linearity Photodiode ye-CATV RF.
• 45~1000MHz (ezansi nomfula) Okukhiphayo kwe-RF.
• Awekho amandla e-DC Umklamo womnotho we-Passive.
• Imbobo ye-Optical Bypass engu-1310nm/1490nm ukuya ku-ONU.
• I-WDM ingathuthukiswa ukuze ifake imbobo ekhanyayo engu-1270nm/1577nm ye-XGPON ONU.
