GLB2000A-K Terr TV na Fiber Optic ejima LNB
Nkọwa ngwaahịa
GLB2000A satịlaịtị TV FTTH ngwa anya LNB na-atụgharị mgbama ngwa anya ka ọ bụrụ polarities RF abụọ maka otu onye nata satịlaịtị. Na-arụ ọrụ na Greatway GLB3500A-2T satịlaịtị TV fiber optic transmitter, GLB2000A na-ewepụta akara ngosi RF dị elu nke Terrestrial TV + kwụ ọtọ / kwụ ọtọ. Nke a ftth LNB nwere ike ịgbanwe vetikal (ma ọ bụ RHCP) ma ọ bụ Horizontal (ma ọ bụ LHCP) ike 13V ma ọ bụ 18V DC sitere na satịlaịtị nnata.
Mgbe niile LNB bụ Low Noise Block, na-atụgharị Ku Band 10.7GHz ~ 12.75GHz RF ma ọ bụ C Band 3.7GHz~4.2GHz RF ka 950MHz ~ 2150MHz Ọ BỤRỤ na maka nọdụ nnata. Na SMTV n'elu sistemu eriri, otu onye na-ebugharị na-atụgharị LNB Ọ BỤRỤ na eriri. Mgbe eriri optic amplifier na PON gasịrị, a na-ekesa mgbaàmà optic na narị otu narị ma ọ bụ puku kwuru puku ezinụlọ FTTH. N'ụlọ ọ bụla nwere eriri eriri, otu onye na-anata ngwa anya na-atụgharị eriri gaa na Sat Ọ BỤRỤ. Ntinye eriri na-atụgharị gaa na 950MHz ~ 2150MHz Ọ BỤRỤ na mmepụta maka sat nnata.
• Satellite optical receiver na-arụ otu ọrụ dị ka LNB oge niile, ọ bụ "virtual" LNB n'ụlọ. Enwere ike ịkpọ ihe nnata anya satellite dị ka Optical LNB ma ọ bụ Fiber LNB.
• A na-etinye LNB oge niile na efere chere ihu na mbara igwe. A na-etinye LNB anya n'ebe ọ bụla n'ụlọ ebe eriri dị. Enwere ike iwepụtaghachi ọdịnaya nke otu LNB oge niile ruo LNB ngwa anya 500K
• LNB mgbe niile nwere polarities vetikal ma ọ bụ kehoraizin (13V/18V) na band dị elu ma ọ bụ obere band (0Hz ma ọ bụ 22KHz). Site na teknụzụ CWDM/DWDM, ngwa anya LNB nwere ike inwe otu ọrụ RF ọdụ ụgbọ mmiri site na otu eriri SM.
Mgbe niile LNB bụ Low Noise Block, na-atụgharị Ku Band 10.7GHz ~ 12.75GHz RF ma ọ bụ C Band 3.7GHz~4.2GHz RF ka 950MHz ~ 2150MHz Ọ BỤRỤ na maka nọdụ nnata. Na SMTV n'elu sistemu eriri, otu onye na-ebugharị na-atụgharị LNB Ọ BỤRỤ na eriri. Mgbe eriri optic amplifier na PON gasịrị, a na-ekesa mgbaàmà optic na narị otu narị ma ọ bụ puku kwuru puku ezinụlọ FTTH. N'ụlọ ọ bụla nwere eriri eriri, otu onye na-anata ngwa anya na-atụgharị eriri gaa na Sat Ọ BỤRỤ. Ntinye eriri na-atụgharị gaa na 950MHz ~ 2150MHz Ọ BỤRỤ na mmepụta maka sat nnata.
Satellite optical receiver na-arụ otu ọrụ dị ka LNB oge niile, ọ bụ LNB "mebere" n'ụlọ. Enwere ike ịkpọ ihe nnata anya satellite dị ka Optical LNB ma ọ bụ Fiber LNB.
A na-etinye LNB oge niile na efere chere ihu na mbara igwe. A na-etinye LNB anya n'ebe ọ bụla n'ụlọ ebe eriri dị. Enwere ike iwepụtaghachi ọdịnaya nke otu LNB oge niile ruo 500K ngwa anya LNBs.
LNB oge niile nwere polarities vetikal ma ọ bụ kehoraizin (13V/18V) yana band dị elu ma ọ bụ obere band (0Hz ma ọ bụ 22KHz). Site na teknụzụ CWDM/DWDM, ngwa anya LNB nwere ike inwe otu ọrụ RF ọdụ ụgbọ mmiri site na otu eriri SM.
GLB2000A nwere 1310nm/1490nm WDM nhọrọ maka imekọ ihe na GPON/EPON ONU na ihe ọ bụla FTTH ikpe, nke na-enyere ịtinye DTT+SAT n'elu GPON/EPON netwọk.
Atụmatụ ndị ọzọ:
•Ụlọ na-egbochi ire ọkụ rọba kọmpat.
•Photodiode Linearity dị elu.
•Ntinye eriri SC/APC.
•Ngwa anya AGC: -6dBm ~ +1dBm.
•Bandwit Sat RF: 950MHz ~ 2150MHz.
•Ogologo bandwit RF Terrestrial TV: 174 ~ 806MHz.
•Okirikiri TV + Horizontal (LHCP)@18V DC from satịlaịtị nnata..
•Terrestrial TV + vetikal (RHCP)@13V DC sitere na satịlaịtị nnata.
•Ọdụ ụgbọ mmiri WDM nhọrọ gaa na GPON ONU.
