I-GLB3500A-2R Twin Fiber Optic LNB

I-GLB3500A-2R isathelayithi i-LHCP/RHCP FTTH Optical LNB isamukeli se-fiber optic esiguqula isignali yokubona ibe yi-RF kwabamukeli besathelayithi abangaphezu kwababili. Isebenza ne-Greatway GLB3500A-2T yesathelayithi ye-TV fibre optic transmitter, i-GLB3500A-2R ikhipha ikhwalithi ephezulu ye-Terrestrial TV+ LHCP kanye ne-Terrestrial TV + isignali ye-RHCP RF emndenini owodwa onezamukeli zesathelayithi ezingaphezu kwezimbili. Le FTTH Twin LNB ingaba nokuphumayo kwe-RF okubili, imbobo ye-RF ngayinye ingashintsha isignali yokuphuma kwe-LHCP noma ye-RHCP ngamandla angu-13V noma angu-18V DC asuka kusamukeli sesathelayithi.

OkuvamileI-LNBkuyintoLawuNuwoseBukukhiya, ukuguqula i-Ku Band 10.7GHz~12.75GHz RF noma i-C Band 3.7GHz~4.2GHz RF iye ku-950MHz~2150MHz IF kumamukeli ahlala. Ku-SMATV ngohlelo lwefayibha, isidluliseli esisodwa siguqula i-LNB IF ibe ifayibha. Ngemuva kwe-fiber optic amplifier ne-PON, isignali ye-optic isatshalaliswa kumakhulu noma izinkulungwane zemindeni ye-FTTH. Ekhaya ngalinye elinekhebula le-fiber, isamukeli esisodwa esibonakalayo siguqula i-fiber ibe yi-Sat IF. Okokufaka kwe-Fiber kuphendukela ku-950MHz ~ 2150MHz IF okukhiphayo IF kumamukeli ahlala.

Isamukeli sokubonwa kwesathelayithi sidlala indima efanayo ne-LNB evamile, iyi-LNB "ebonakalayo" ekhaya. Isamukeli esibonakalayo sesathelayithi singabizwa ngokuthi i-Optical LNB noma i-Fiber LNB.

I-LNB evamile ifakwa esitsheni esibheke esibhakabhakeni. I-Optical LNB ifakwa noma yikuphi ekhaya lapho i-fiber itholakala khona. Okuqukethwe kwe-LNB eyodwa evamile kungaphinda kukhiqizwe kuze kufike ku-500K optical LNBs

I-LNB evamile ine-polarities eqondile noma evundlile (13V/18V) kanye nebhendi ephakeme noma ibhendi ephansi (0Hz noma 22KHz). Ngobuchwepheshe be-CWDM/DWDM, i-Optical LNB ingaba nomsebenzi ofanayo nembobo ye-RF esekela i-DiSEqC.

I-GLB3500A-2R inenketho engu-1310nm/1490nm WDM yokusebenzisana ne-GPON/EPON ONU kunoma yisiphi isimo se-FTTH, esivumela ukufaka i-TV yesathelayithi kunethiwekhi ye-GPON/EPON.