GFH1000-KP yopanda mphamvu CATV wolandila ONU
Mafotokozedwe Akatundu
GFH1000-KP ndi 1550nm yopanda mphamvu ya CATV fiber ku cholandila chapanyumba chokhala ndi 1310nm/1490nm WDM loop out port. Pambuyo pa kampeni yozama ya fiber, HFC CATV optical receiver service imachepa kuchokera kwa olembetsa a 2000, mpaka olembetsa 500, olembetsa 125, olembetsa 50 ndipo tsopano olembetsa m'modzi akakhala ndi fiber kunyumba. Popeza mphamvu yapamwamba yamawu amplifier imagwiritsidwa ntchito kwambiri mu CATV Broadcasting PON system, ndizotheka kugwiritsa ntchito cholandila chopanda mphamvu chogwira ntchito pa -6dBm~-1dBm kuti muchepetse mtengo wa FTTH komanso kugwiritsa ntchito mphamvu. Pakadali pano, popeza ntchito ya intaneti imasamutsidwa ku GPON kapena XGPON, GHF1000-KP ili ndi 45MHz mpaka 1000MHz kapena 1218MHz bandwidth yonse ya RF ya ntchito yowulutsa pa TV.
GFH1000-KP ili ndi doko limodzi lolowera, doko limodzi la fiber wdm ndi RF imodzi yotulutsa. Monga zida za banja la ONU, GFH1000-KP ili ndi nyumba zamapulasitiki zomwe zimalepheretsa moto. Pulagi ndi chipangizochi chimayikidwa kunyumba mosavuta kapena pulogalamu ya SOHO (ofesi yaying'ono ndi ofesi yakunyumba). Ndi mawonekedwe apamwamba a photodiode komanso mawonekedwe ofananirako a RF, GFH1000-KP imatulutsabe RF yovomerezeka ya TV ya analogi kapena digito ya QAM TV pa TV imodzi kapena zingapo m'banja limodzi. Mosiyana ndi GFH1000 FTTH CATV wolandila wokhala ndi amplifier ya GaAs, GFH1000-KP yopanda mphamvu FTTH CATV wolandila amadalira mphamvu yamagetsi yamagetsi ya EDFA, mphamvu yolowera ya 1550nm imatha kuyamikiridwa motsika mpaka -6dBm pomwe chizindikiro cha RF chili DVB-CAM kapena -1dBm pamene chizindikiro cha RF ndi TV ya analogi.
The athandizira 1550nm siginecha bandiwifi akhoza kukhala 1525nm ~ 1565nm wideband kuwala siginecha ndi yopapatiza gulu 1550nm ~ 1560nm kuwala chizindikiro.
WDM imatha kuthandizira 1310nm/1490nm GPON kapena 1270nm/1577nm XGPON kapena NGPON2. GFH1000-KP imathandizira gulu lililonse lachitatu GPON ONU yokhala ndi ntchito ya RF yowulutsira ma mayendedwe a RF.
Zina:
• Nyumba ya pulasitiki yocheperako yotsekera moto.
• High Linearity Photodiode ya CATV RF.
• 45~1000MHz (kunsi kwa mtsinje) Kutulutsa kwa RF.
• Palibe mphamvu ya DC Mapangidwe achuma a Passive.
• 1310nm/1490nm Optical Bypass Port kupita ku ONU.
• WDM ikhoza kukwezedwa kuti ikhale ndi 1270nm/1577nm reflection port ya XGPON ONU.
