GLB2000A-K Terr TV kunye neFiber Optic Twin LNB

Iimbonakalo:

•Indlu yeplastiki ebambeneyo ebuyisela idangatye.

•Uluhlu lwe-AGC olubonakalayo: -6dBm ~ +1dBm.

•Imveliso yeTerr TV + Horizontal (LHCP)@18V ukusuka kwi-STB.

•Imveliso yeTerr TV + nkqo (RHCP)@13V ukusuka kwi-STB.

•Ixhaswe yisathelayithi STB.

•Ukusebenza nge-GLB3500A-2T isidluliseli.

•Ukhetho: WDM port ukuya GPON okanye XGPON ONU.

•Ukhetho: ukuxhasa i-4 satellite STBs.

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IINKCUKACHA ZEMVELISO

Ingcaciso yeMveliso

I-GLB2000A ye-TV yesathelayithi FTTH i-LNB yamehlo iguqula umqondiso obonayo ube ziipolarities ezimbini zeRF zomamkeli wesathelayithi enye. Ukusebenza nge-Greatway GLB3500A-2T yesathelayithi ye-fiber optic transmitter ye-TV, i-GLB2000A ikhupha umgangatho ophezulu we-Terrestrial TV+ Umqondiso we-RF othe nkqo/othe tye. Le LNB ye-ftth inokutshintsha i-Vertical (okanye i-RHCP) okanye i-Horizontal (okanye i-LHCP) isignali yemveliso nge-13V okanye i-18V DC yamandla asuka kumamkeli wesathelayithi.

I-LNB yesiqhelo yiBhlokhi yeNgxoxo ePhantsi, iguqula i-Ku Band 10.7GHz~12.75GHz RF okanye i-C Band 3.7GHz~4.2GHz RF ukuya ku-950MHz~2150MHz IF kumamkeli ahlala. Kwi-SMATV ngaphezulu kwenkqubo yefayibha, isidluliseli esinye siguqula i-LNB IF kwifayibha. Emva kwe-fiber optic amplifier kunye ne-PON, isignali ye-optic isasazwa kumakhulu okanye amawaka eentsapho ze-FTTH. Kwikhaya ngalinye elinefayibha intambo, enye i-optical receiver iguqula ifayibha ibe yiSat IF. Igalelo leFayibha lijikela kwi-950MHz ~ 2150MHz IF imveliso yesat receiver.

• ISatellite Optical receiver idlala indima efanayo ne-LNB eqhelekileyo, yi-LNB "ebonakalayo" ekhaya. Isathelayithi i-optical receiver inokubizwa ngokuba yi-Optical LNB okanye iFiber LNB.
• I-LNB eqhelekileyo ifakwa kwisitya esijonge esibhakabhakeni. I-Optical LNB ifakwe naphi na ekhaya apho ifayibha ifumaneka khona. Imixholo ye-LNB enye eqhelekileyo inokuveliswa ukuya kuthi ga kwi-500K ye-LNB yamehlo
• I-LNB yesiqhelo ineepolarities ezithe nkqo okanye ezithe tye (13V/18V) kunye nebhendi ephezulu okanye esezantsi (0Hz okanye 22KHz). Ngeteknoloji yeCWDM/DWDM, i-LNB yamehlo inokuba nomsebenzi ofanayo wezibuko le-RF kwifiber enye ye-SM.

Isathelayithi i-optical receiver idlala indima efanayo ne-LNB eqhelekileyo, yi-LNB "ebonakalayo" ekhaya. Isathelayithi i-optical receiver inokubizwa ngokuba yi-Optical LNB okanye iFiber LNB.

I-LNB eqhelekileyo ifakwa kwisitya esijonge esibhakabhakeni. I-Optical LNB ifakwe naphi na ekhaya apho ifayibha ifumaneka khona. Imixholo ye-LNB enye eqhelekileyo inokuphinda iveliswe ukuya kuthi ga kwi-500K yee-LNB zamehlo.

I-LNB yesiqhelo ineepolarities ezithe nkqo okanye ezithe tye (13V/18V) kunye nebhendi ephezulu okanye ibhendi esezantsi (0Hz okanye 22KHz). Ngeteknoloji yeCWDM/DWDM, i-LNB yamehlo inokuba nomsebenzi ofanayo wezibuko le-RF kwifiber enye ye-SM.

I-GLB2000A ine-1310nm/1490nm inketho ye-WDM yokusebenzisana kunye ne-GPON/EPON ONU kuyo nayiphi na imeko ye-FTTH, eyenza ukufaka i-DTT+SAT phezu kwe-GPON/EPON network.