GLB3500A-2R Twin Okun opitiki LNB
ọja Apejuwe
GLB3500A-2R satẹlaiti LHCP/RHCP FTTH Optical LNB jẹ olugba okun opiti ti n yi ifihan agbara opitika pada si RF fun diẹ ẹ sii ju awọn olugba satẹlaiti meji lọ. Nṣiṣẹ pẹlu Greatway GLB3500A-2T satẹlaiti TV fiber optic transmitter, GLB3500A-2R ṣe agbejade didara giga Terrestrial TV + LHCP ati Terrestrial TV + RHCP RF ifihan si idile kan pẹlu diẹ sii ju awọn olugba satẹlaiti meji. LNB Twin FTTH yii le ni awọn abajade RF meji, ibudo RF kọọkan le yipada LHCP tabi ifihan agbara RHCP nipasẹ agbara 13V tabi 18V DC lati olugba satẹlaiti.
DeedeLNBniLawoNepoBtitiipa, iyipada Ku Band 10.7GHz ~ 12.75GHz RF tabi C Band 3.7GHz ~ 4.2GHz RF to 950MHz ~ 2150MHz IF fun sat olugba. Ni SMTV lori eto okun, atagba kan yipada LNB IF si okun. Lẹhin ampilifaya fiber optic ati PON, ifihan agbara opitiki ti pin si awọn ọgọọgọrun tabi ẹgbẹẹgbẹrun awọn idile FTTH. Ni ile kọọkan pẹlu okun okun, ọkan opitika olugba iyipada okun to Sat IF. Iṣagbewọle Fiber yipada si 950MHz ~ 2150MHz IF iṣẹjade fun olugba sat.
Satẹlaiti opitika olugba yoo kanna ipa bi deede LNB, o jẹ a "foju" LNB ni ile. Satẹlaiti opitika olugba le ti wa ni a npe ni Optical LNB tabi Fiber LNB.
LNB deede ti fi sori ẹrọ ni satelaiti ti nkọju si ọrun. Opitika LNB ti fi sori ẹrọ nibikibi ni ile nibiti okun wa. Awọn akoonu ti LNB deede kan le tun ṣejade to awọn LNB opitika 500K
LNB deede ni inaro tabi petele polarities (13V/18V) ati iye ti o ga tabi iye kekere (0Hz tabi 22KHz). Nipasẹ ọna ẹrọ CWDM/DWDM, LNB opitika le ni iṣẹ kanna RF ibudo atilẹyin DiSEqC.
GLB3500A-2R ni 1310nm/1490nm WDM aṣayan fun ifowosowopo pẹlu GPON/EPON ONU ni eyikeyi FTTH nla, eyi ti o jeki fifi satẹlaiti TV lori GPON/EPON nẹtiwọki.
Awọn ẹya miiran:
•Iwapọ kú-simẹnti aluminiomu ile
•Photodiode Linearity giga
•SC / APC okun igbewọle
•Ibiti opitika AGC: -6dBm ~ +1dBm
•Bandiwidi RF Sat: 950MHz ~ 2150MHz
•Bandiwidi TV RF ori ilẹ: 174MHz ~ 806MHz
•RF o wu: ori ilẹ TV + LHCP@18V DC
•RF o wu: Terrestrial TV + RHCP@13V DC
•CE fọwọsi
•Iyan WDM ibudo to GPON ONU