FTTH Optical Receiver(CT-2002C)
Kakaretso
Sehlahisoa sena ke FTTH optical receiver, e sebelisang theknoloji ea AGC ea matla a tlaase a ho amohela le ho laola optical, e ka finyellang litlhoko tsa fiber-to-the-hae, 'me e ka sebelisoa hammoho le ONU kapa EOC ho finyella papali e meraro. Ho na le WDM, 1550nm CATV signal photoelectric conversion le RF output, 1490/1310 nm PON pontso e feta ka ho toba, e ka kopanang le FTTH optical fiber transmission CATV + XPON.le ho lumellana le tikoloho ea XGSPON,
Sehlahisoa se kopane ka sebopeho 'me se bonolo ho se kenya,' me 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 ka hare, fumana monyako oa fiber e le 'ngoe (1490/1310/1550nm) ts'ebeliso ea papali e meraro.
> SC/APC kapa FC/APC optical connector, 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) | 1310,1490,1550 | |
| 4 | cable TV wavelength (nm) | 1550 ± 10 | |
| 5 | Output light wavelength (nm) | 1310, 1490 | |
| 6 | Karohano ea kanale (dB) | ≥ 40 (pakeng tsa 1310/1490nm le 1550nm) | |
| 7 | kenya matla a optical (dBm) | -18 ~ +2 | |
| 8 | Tahlehelo ea pono ea pono (dB) | 55 | |
| 9 | 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) | ≥18dB | |
| 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
FTTH Optical Receiver Lipotso Tse Botsoang Khafetsa
Q1. FTTH optical receiver ke eng?
A: FTTH optical receiver ke sesebelisoa se sebelisoang ho marang-rang a fiber-to-the-home (FTTH). E etselitsoe ho amohela matšoao a optical ho tsoa ho marang-rang a fiber optic le ho a fetolela mats'oao a motlakase bakeng sa ts'ebetso e tsoelang pele.
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). Theknoloji ea AGC e tiisa hore matla a optical a amoheloang a lula ka har'a mefuta e itseng ka ho fetola phaello ea moamoheli. Sena se tiisa kamohelo e tšepahalang ea lets'oao le ts'ebetso e nepahetseng.
Q3. Melemo ea ho sebelisa FTTH optical receiver ke efe?
A: Ho sebelisa FTTH optical receivers ho tlisa melemo e mengata ho marang-rang a FTTH. E thusa ho amohela le ho fetola mats'oao a fiber optic hantle, e nolofalletsa Marang-rang a lebelo le phahameng, TV ea boleng bo holimo ea dijithale le lits'ebeletso tse hlakileng tsa lentsoe. Ho feta moo, e ka kopanngoa le Optical Network Unit (ONU) kapa Ethernet over Coax (EOC) bakeng sa lits'ebeletso tsa papali e meraro.
Q4. Lisebelisoa tsa FTTH optical receivers ke life?
A: Li-receiver tsa FTTH optical li sebelisoa haholo ho marang-rang a FTTH ho hokahanya libaka tsa bolulo kapa tsa khoebo tse nang le lisebelisoa tsa fiber optic. E sebetsa e le sesebelisoa sa ho qetela se nkang mats'oao a optical a tsamaeang ka likhoele tsa fiber optic ebe o li fetolela ho matšoao a motlakase a loketseng lits'ebeletso tse fapaneng, ho kenyeletsoa Marang-rang, thelevishene le lentsoe.
Q5. Na FTTH optical receiver e ka sebelisoa le lisebelisoa tse ling?
A: E, FTTH optical receiver e ka sebelisoa hammoho le ONU kapa EOC ho fumana tšebeletso ea ho bapala ka makhetlo a mararo. ONU e sebetsa e le setsi sa bohareng bakeng sa ho aba melaetsa ea Inthanete, TV le lentsoe ka har'a sebaka, ha li-receiver tsa optical tsa FTTH li netefatsa kamohelo e tšepahalang le ho fetola lipontšo tsena. Ka kopanelo, ba ts'ehetsa khokahano e se nang moeli le lits'ebeletso tsa multimedia ho marang-rang a FTTH.
