I-GLB2000A-K Terr TV kanye ne-Fiber Optic Twin LNB

Izici:

•Izindlu zepulasitiki eziqinile ezibuyisela amalangabi.

•Ibanga le-Optical AGC: -6dBm ~ +1dBm.

•I-Output Terr TV + Horizontal (LHCP)@18V kusukela ku-STB sat.

•I-Output Terr TV + Vertical (RHCP)@13V kusuka ku-STB sat.

•Inikwa amandla yi-STB yesethelayithi.

•Isebenza nge-GLB3500A-2T transmitter.

•Inketho: Imbobo ye-WDM eya ku-GPON noma i-XGPON ONU.

•Inketho: isekela 4 satellite STBs.

Cela i-Quote Landa njenge-PDF

IMINININGWANE YOMKHIQIZO

Incazelo Yomkhiqizo

I-GLB2000A TV yesathelayithi ye-FTTH i-LNB yokubona iguqula isignali yokubona ibe izingxenye ezimbili ze-RF kwesamukeli esisodwa sesathelayithi. Isebenza ne-Greatway GLB3500A-2T ye-TV yesathelayithi ehambisa i-fiber optic transmitter, i-GLB2000A ikhipha isignali yekhwalithi ephezulu ye-Terrestrial TV+ Vertical/Horizontal RF. Le LNB ye-ftth ingashintsha isignali ephumayo Eqondile (noma i-RHCP) noma Evundlile (noma i-LHCP) ngamandla angu-13V noma angu-18V DC asuka kwesamukeli sesathelayithi.

I-LNB evamile i-Low Noise Block, iguqulela i-Ku Band 10.7GHz~12.75GHz RF noma i-C Band engu-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.

• Isathelayithi yokubona eyamukelayo idlala 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 wembobo ye-RF kusuka ku-SM fiber eyodwa.

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 kufikela 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 wembobo ye-RF kusuka ku-SM fiber eyodwa.

I-GLB2000A inenketho engu-1310nm/1490nm WDM yokusebenzisana ne-GPON/EPON ONU kunoma yisiphi isimo se-FTTH, esivumela ukufaka i-DTT+SAT phezu kwenethiwekhi ye-GPON/EPON.