FTTH Optical Receiver(CT-2001C)
Kakaretso
Sehlahisoa sena ke FTTH optical receiver. E amohela theknoloji ea AGC e amohelang matla a tlase le taolo ea optical ho fihlela litlhoko tsa fiber-to-the-house. Sebelisa triple play optical input, laola botsitso ba lets'oao ka AGC, ka WDM, 1100-1620nm CATV signal photoelectric conversion le RF output cable TV program.
Sehlahisoa se na le litšobotsi tsa sebopeho sa compact, ho kenya habonolo le litšenyehelo tse tlase. Ke sehlahisoa se loketseng ho aha marang-rang a cable TV FTTH.
Sebopeho
> khetla ea polasetiki ea boleng bo holimo e nang le litekanyetso tse ntle tsa mollo o phahameng.
> Seteishene sa RF se tletseng GaAs sekontiri se tlaase sa amplifier ea lerata. Kamohelo e fokolang ea matshwao a dijithale ke -18dBm, mme kamohelo e tlase ya matshwao a analoge ke -15dBm.
> Sebaka sa taolo ea AGC ke -2~ -14dBm, 'me tlhahiso ha e fetohe. (Lethathamo la AGC le ka etsoa ho latela mosebelisi).
> Moralo o fokolang oa tšebeliso ea matla, o sebelisa matla a phahameng a ho fetola matla a matla ho netefatsa ho tšepahala ho phahameng le botsitso bo phahameng ba phepelo ea motlakase. Tšebeliso ea matla ea mochini kaofela e ka tlase ho 3W, e nang le potoloho ea leseli.
> WDM e hahelletsoeng, hlokomela ts'ebeliso ea fiber e le 'ngoe (1100-1620nm).
> SC/APC le SC/UPC kapa FC/APC sehokelo sa optical, metric kapa inch interface RF boikgethelo.
> Mokhoa oa phepelo ea motlakase oa boema-kepe ba 12V DC.
Lipontšo tsa tekheniki
| Nomoro ea letoto | morero | Litekanyetso tsa ts'ebetso | ||
| Mekhahlelo ea Optical | ||||
| 1 | Mofuta oa laser | Photodiode | ||
| 2 | Mohlala oa Amplifier ea Matla |
| MMIC | |
| 3 | input light wavelength(nm) | 1100-1620nm | ||
| 4 | kenya matla a optical (dBm) | -18 ~ +2dB | ||
| 5 | Tahlehelo ea pono ea pono (dB) | 55 | ||
| 6 | Foromo ea sehokelo sa Optical | SC/APC | ||
| RF parameters | ||||
| 1 | RF output frequency range(MHz) | 45-1002MHz | ||
| 2 | boemo ba tlhahiso(dBmV) | ＞20 Boema-kepe bo bong le bo bong ba tlhahiso (ho kenyeletsoa ka pono: -12 ~ -2 dBm) | ||
| 3 | flatness (dB) | ≤ ± 0.75 | ||
| 4 | Khutlisa Tahlehelo (dB) | ≥14dB | ||
| 5 | RF tlhahiso ea impedance | 75Ω | ||
| 6 | Palo ea likou tse hlahisoang | 1＆2 | ||
| tshebetso kgokahanyo | ||||
| 1 |
77 NTSC / 59 PAL likanale tsa analoge | CNR≥50 dB (0 dBm tlhahiso ea leseli) | ||
| 2 |
| CNR≥49Db (-1 dBm tlhahiso ea leseli) | ||
| 3 |
| CNR≥48dB (-2 dBm tlhahiso ea leseli) | ||
| 4 |
| CSO ≥ 60 dB, CTB ≥ 60 dB | ||
| Digital TV Features | ||||
| 1 | MER (dB) | ≥31 | -15dBm e kenya matla a optical | |
| 2 | OMI (%) | 4.3 | ||
| 3 | BER (dB) | <1.0E-9 | ||
| tse ding | ||||
| 1 | motlakase (AC/V) | 100～240 (kenyo ea adaptara) | ||
| 2 | Matla a kenang (DC/V) | +5V (ho kenya FTTH, tlhahiso ea adaptara) | ||
| 3 | Mocheso oa ho sebetsa | -0 ℃~+40℃ | ||
Setšoantšo sa moralo
Setšoantšo sa Sehlahisoa
LBH
Q1. FTTH optical receiver ke eng?
A: FTTH optical receiver ke sesebelisoa se sebelisoang marang-rang a fiber-to-the-home (FTTH) ho amohela matšoao a optical a fetisoang ka lithapo tsa optical le ho li fetolela ho data kapa matšoao a ka sebelisoang.
Q2. FTTH optical receiver e sebetsa joang?
A: The FTTH optical receiver e amohela kamohelo e tlase ea matla a matla le theknoloji ea optical automatic gain control (AGC). E amohela ho kenella ka makhetlo a mararo 'me e boloka botsitso ba matšoao ka AGC. E fetolela lets'oao la 1100-1620nm CATV ho tlhahiso ea motlakase ea RF bakeng sa lenaneo la cable.
Q3. Melemo ea ho sebelisa FTTH optical receiver ke efe?
A: Melemo ea ho sebelisa li-receiver tsa FTTH optical li kenyelletsa bokhoni ba ho tšehetsa lisebelisoa tsa fiber-to-the-home, tse ka fanang ka litšebeletso tsa Inthanete, TV le thelefono ka lebelo le le leng. E fana ka tšebeliso e tlaase ea matla, kamohelo e tsitsitseng ea matšoao le phetoho e phahameng ea photoelectric bakeng sa matšoao a CATV.
Q4. Na moamoheli oa FTTH o khona ho sebetsana le maqhubu a fapaneng a maqhubu?
A: E, FTTH optical receivers ba nang le bokhoni ba WDM (Wavelength Division Multiplexing) ba khona ho sebetsana le maqhubu a sa tšoaneng, hangata pakeng tsa 1100-1620nm, ho ba nolofalletsa ho sebetsana le matšoao a fapaneng a CATV a fetisitsoeng holim'a likhoele tsa fiber optic.
Q5. Bohlokoa ba theknoloji ea AGC ho FTTH optical receiver ke bofe?
A: Theknoloji ea Automatic Gain Control (AGC) ho FTTH optical receivers e netefatsa botsitso ba pontšo ka ho fetola matla a ho kenya letsoho ho boloka boemo bo tsitsitseng ba pontšo. Sena se nolofalletsa phetisetso e tšepahalang, e sa sitisoeng ea mats'oao a CATV, ho netefatsa ts'ebetso e nepahetseng bakeng sa lits'ebetso tsa fiber-to-hae.
