FTTB Indhaha Signalka ilaa Qalabka RF ee Gudaha ee Fiber Optic-ga ah
Lambarka Moodeelka: SRB-200
Summada: Jilicsan
MOQ: 1
Iyada oo leh Shaqada AGC ee Indhaha
45 ~ 1000MHz daboolid buuxda
2 dekedood oo wax soo saar RF ah
01
Sharaxaadda Badeecada
Hordhac
Qalabka indhaha ee taxanaha SRB waa qalabka indhaha ee gudaha ku shaqeeya oo loogu talagalay inuu daboolo mashruuca dayactirka fiilada shabakadda. Badeecadani waxay leedahay 1 ilaa 2 dekedood oo RF ah. Oo deji shaqada AGC ee indhaha marka +2dBm ~ -6dBm marka la helayo wax soo saarka lagu hayn karo 106dBµV oo ka sarreeya (laba); qolof iyadoo la isticmaalayo qolof aluminium ah oo la shubay.
Sifooyinka Shaqada
- 45MHz ilaa 1000MHz madal ballaaran iyo madal naqshad daaqad laba-geesood ah oo 1310, 1550 ah;
- Wareegga xakamaynta qulqulka oo qumman oo leh shaandho sare, oo leh iska caabin xooggan oo ku wajahan dhacdooyinka hillaaca iyo ka hortagga saameynta kororka;
- Naqshadeyn isticmaal koronto oo hooseeya, isticmaalka korontada oo dhan wuxuu ka yar yahay 15W; wuxuuna leeyahay bandhig dijitaal ah iyo shaqo hawlgal online ah.
- Transponders-ka Nooca II waa la isticmaali karaa；
| Lambarka Taxanaha | Shay | Xuduudaha farsamada | Faallooyin |
| 1 | Mowjadda la helay | 1290-1600nm | |
| 2 | Lumitaanka milicsiga indhaha ee soo galaya | >45dB | |
| 3 | Jawaab celinta hadda jirta | 0.85A/W(qiimaha matalaadda 1310nm) | |
| 4 | Kala duwanaanshaha awoodda indhaha ee la helay | +3dBm～-9dBm | |
| 5 | heerka wax soo saarka | 106dBμV±1dB | +2dBm- -6dBm hel |
| 6 | Nooca Faybarka | qaab hal ah (9/125nm) | |
| 7 | Nooca Xidhiidhiyaha Fiber Optic | FC/APC ama SC/APC | |
| 8 | Hadda qaylada la geliyo oo u dhiganta | ≦8PA√Hz | SJ/T10663-1995 NO.4.21 |
| 9 | Ballaca soo noqnoqda | 87-1002MHz | |
| 10 | fidsanaanta gudaha RF | ±±1dB | |
| 11 | Lumista milicsiga RF | ≥16dB (45-1000MHz) | |
| 12 | Halbeegyada isku xirka nidaamka | C/N ≥46dB | qoraal |
| C/CTB ≥ 62dB | |||
| C/CSO ≥ 62dB | |||
| 13 | Heerka Dekedda Tijaabada | -20dB | Marka loo eego wax soo saarka ugu weyn |
| 14 | Kala duwanaanshaha Hagaajinta Koritaanka | 0~20dB(1 dB horumar) | (oo ka mid ah alaabada) ka tag warshadda 0dB |
| 15 | Kala duwanaanshaha hagaajinta janjeedhka | 0~14dB(1 dB horumar) | (oo ka mid ah alaabada) ka tag warshadda 0dB |
| 16 | isku xirka wax soo saarka RF | Isku-xirka F | |
| 17 | Danabka korontada ee AC | DC+12A/1A | |
| 18 | kala firdhinta awoodda ugu badan | ≤10W | |
| Fiiro gaar ah: Marka la eego xaaladaha luminta xiriirka ee la cayimay, habayso 59 calaamadood oo kanaalka TV-ga analogga ah ee PAL-D gudaha xadka soo noqnoqda ee 550MHz, oo gudbi calaamadaha wax-ka-beddelka dhijitaalka ah gudaha xadka soo noqnoqda ee 550 MHz ilaa 862MHz. Heerka calaamadda wax-ka-beddelka dhijitaalka ah (gudaha xadka ballaceed ee 8 MHz) waa 10dB ka hooseeya heerka side-ka ee calaamadda analogga. Marka awoodda soo-gelinta qalabka soo-dhoweeyaha indhaha ay tahay -6 dBm, cabbir C/CTB, C/CSO, iyo C/N. Heerka wax-soo-saarka RF ee magacaaban wuxuu ku yaal barta soo noqnoqda ee 862 MHz, iyadoo wax-soo-saarka dhabta ahi uu yahay 10dB ka hooseeya. | |||
| Lambarka Taxanaha | Magaca | Sharaxaadda Shaqada |
| 1 | Wax soo saarka RF1 | Dekedda wax soo saarka RF 1 |
| 2 | Wax soo saarka RF2 | Dekedda wax soo saarka RF 2 |
| 3 | Goobta Tijaabada RF | Dekedda tijaabada RF -20dB |
| 4 | Is-dhexgalka Awoodda | Adaptor-ka korontada dibadda ee DC soo saarka DC12V 1A |
| 5 | Isku-xirka Fiber Optic | FC/APC ama SC/APC |
| 6 | Furaha Hawlgalka | SELSelect Project Select SETparameter dejinta |
| 7 | Iftiinka tilmaameBandhig Dijital ahIftiinka xaaladda | RF waa awoodda wax soo saarka EQ waa qiimaha simitaanka ATT waa qiimaha hoos u dhigista OP waa awoodda indhaha ee la helay |
| 8 | Bandhig Dijital ah | RF: soo bandhig awoodda guud ee hadda jirta, cutubka dBuV aad ayuu u sarreeyaa HI aad ayuu u hooseeyaa LO (sida caadiga ah ee warshadda 50 qaybood oo barnaamijyo ah) EQ: soo bandhig qiimaha isle'egta, cutubka dB, kala duwanaanshaha la hagaajin karo 0-15 ATT: qiimaha hoos u dhigista bandhigga, cutubka dB, kala duwanaanshaha la hagaajin karo 0-15 OP: soo bandhig qiimaha awoodda indhaha ee la helay, cutubka dBm bandhig aad u sarreeya HI, bandhig aad u hooseeya -9 LO |
| 9 | Iftiinka xaaladda | Awoodda: Tilmaamaha Awoodda, caadi ahaan casaankaIndhaha: Hel tilmaame awood indhaha ah, cagaar (+3 ilaa -9) casaan ah si aad u hesho digniinta Heerka: Tilmaamaha xaaladda wax soo saarka RF, cagaar caadi ah, soo saarku aad ayuu u hooseeyaa ama aad ayuu u sarreeyaa marka loo eego casaanka |
FTTB Indhaha Signalka ilaa Qalabka RF ee Gudaha ee Fiber Optic-ga ah.pdf
