GLB2000A-K Terr TV da Fiber Optic Twin LNB
Bayanin Samfura
GLB2000A tauraron dan adam TV FTTH LNB na gani yana canza siginar gani zuwa RF guda biyu don mai karɓar tauraron dan adam ɗaya. Aiki tare da Greatway GLB3500A-2T tauraron dan adam TV fiber optic transmitter, GLB2000A yana fitar da siginar RF mai inganci mai inganci na Terrestrial TV+ tsaye/tsaye. Wannan LNB na ftth na iya canza siginar fitarwa ta tsaye (ko RHCP) ko Horizontal (ko LHCP) ta ikon 13V ko 18V DC daga mai karɓar tauraron dan adam.
LNB na yau da kullun shine Ƙarshen Noise Block, yana jujjuya Ku Band 10.7GHz~12.75GHz RF ko C Band 3.7GHz~4.2GHz RF zuwa 950MHz~2150MHz IF don mai karɓar sat. A SMTV akan tsarin fiber, mai watsawa ɗaya yana canza LNB IF zuwa fiber. Bayan fiber optic amplifier da PON, ana rarraba siginar gani zuwa ɗaruruwa ko dubban iyalai na FTTH. A kowane gida mai kebul na fiber, mai karɓar gani ɗaya yana canza fiber zuwa Sat IF. Shigar fiber yana juya zuwa 950MHz ~ 2150MHz IDAN fitarwa don mai karɓar sat.
• Satellite Optical receiver yana taka rawa iri ɗaya da LNB na yau da kullun, shine "virtual" LNB a gida. Ana iya kiran mai karɓar gani na tauraron dan adam a matsayin Optical LNB ko Fiber LNB.
• Ana shigar da LNB na yau da kullun a tasa tana fuskantar sama. Ana shigar da LNB na gani a ko'ina cikin gida inda fiber ke samuwa. Ana iya sake samar da abubuwan da ke cikin LNB guda ɗaya na yau da kullun har zuwa 500K LNBs
• LNB na yau da kullun yana da polarities a tsaye ko a kwance (13V/18V) da babbar band ko ƙananan band (0Hz ko 22KHz). Ta hanyar fasahar CWDM/DWDM, LNB na gani na iya samun tashar tashar RF iri ɗaya daga fiber SM ɗaya.
LNB na yau da kullun shine Ƙarshen Noise Block, yana jujjuya Ku Band 10.7GHz~12.75GHz RF ko C Band 3.7GHz~4.2GHz RF zuwa 950MHz~2150MHz IF don mai karɓar sat. A SMTV akan tsarin fiber, mai watsawa ɗaya yana canza LNB IF zuwa fiber. Bayan fiber optic amplifier da PON, ana rarraba siginar gani zuwa ɗaruruwa ko dubban iyalai na FTTH. A kowane gida mai kebul na fiber, mai karɓar gani ɗaya yana canza fiber zuwa Sat IF. Shigar fiber yana juya zuwa 950MHz ~ 2150MHz IDAN fitarwa don mai karɓar sat.
Mai karɓar gani na tauraron dan adam yana taka rawa iri ɗaya da LNB na yau da kullun, LNB “mai kama-da-wane” ne a gida. Ana iya kiran mai karɓar gani na tauraron dan adam a matsayin Optical LNB ko Fiber LNB.
Ana shigar da LNB na yau da kullun a tasa tana fuskantar sama. Ana shigar da LNB na gani a ko'ina cikin gida inda fiber ke samuwa. Ana iya sake samar da abubuwan da ke cikin LNB guda ɗaya na yau da kullun har zuwa 500K LNBs na gani.
LNB na yau da kullun yana da polarities a tsaye ko a kwance (13V/18V) da babbar band ko ƙananan band (0Hz ko 22KHz). Ta hanyar fasahar CWDM/DWDM, LNB na gani na iya samun tashar tashar RF iri ɗaya daga fiber SM ɗaya.
GLB2000A yana da zaɓi na 1310nm/1490nm WDM don yin aiki tare da GPON/EPON ONU a kowace harka ta FTTH, wanda ke ba da damar saka DTT+SAT akan hanyar sadarwar GPON/EPON.
Wasu Fasaloli:
•Ƙaƙƙarfan gidaje masu ɗaukar harshen wuta.
•High Linearity Photodiode.
•SC/APC fiber shigar.
•Kewayon AGC na gani: -6dBm ~ +1dBm.
•Bandwidth na Sat RF: 950MHz ~ 2150MHz.
•Matsakaicin bandwidth RF na ƙasa: 174 ~ 806MHz.
•Gidan talabijin na ƙasa + Horizontal (LHCP)@18V DC from tauraron dan adam mai karɓar..
•Terrestrial TV + A tsaye (RHCP)@13V DC daga mai karɓar tauraron dan adam.
•WDM tashar jiragen ruwa na zaɓi zuwa GPON ONU.
