I-FTTH i-Optical Receiver(CT-2001C)
Isishwankathelo
Le mveliso ngumamkeli obonakalayo we-FTTH. Yamkela itekhnoloji ye-AGC yokufumana amandla aphantsi kunye nolawulo lwamehlo ukuhlangabezana neemfuno zefiber-to-ekhaya. Sebenzisa igalelo lokudlala ngokuphindwe kathathu, lawula uzinzo lwesignali nge-AGC, kunye ne-WDM, i-1100-1620nm i-CATV yesiginali yokuguqulwa kombane we-photoelectric kunye nenkqubo ye-RF yentambo ye-TV ephumayo.
Imveliso ineempawu zesakhiwo esincinci, ukufakela okufanelekileyo kunye neendleko eziphantsi. Yimveliso efanelekileyo yokwakha intambo ye-TV ye-FTTH network.
Uphawu
> Iqokobhe leplastiki elikumgangatho ophezulu kunye nomgangatho olungileyo womlilo ophezulu.
> Ijelo le-RF eligcweleyo le-GaAs yesekethe yesandisi sesandi esiphantsi. Ubuncinci bokwamkelwa kwemiqondiso yedijithali yi-18dBm, kwaye ubuncinci bokwamkelwa kweempawu ze-analog yi-15dBm.
> Uluhlu lolawulo lwe-AGC luyi -2 ~ -14dBm, kwaye imveliso ayitshintshi. (Uluhlu lwe-AGC lunokwenziwa ngokwezifiso ngokuhambelana nomsebenzisi).
> Uyilo lokusetyenziswa kwamandla aphantsi, usebenzisa umbane ophezulu wokutshintsha umbane ukuqinisekisa ukuthembeka okuphezulu kunye nokuzinza okuphezulu kokunikezelwa kwamandla. Ukusetyenziswa kwamandla omatshini wonke kungaphantsi kwe-3W, kunye nesekethe yokubona ukukhanya.
> I-WDM eyakhelwe-ngaphakathi, qaphela ukungena kwefayibha enye (1100-1620nm) isicelo.
> I-SC/APC kunye ne-SC/UPC okanye i-FC/APC isiqhagamshelo sokukhanya, i-metric okanye i-intshi ye-interface ye-RF ngokuzikhethela.
> Imowudi yonikezelo lwamandla ye-12V DC yokufaka i-port.
Iimpawu zobugcisa
| Inombolo yesiriyeli | iprojekthi | Iiparamitha zokusebenza | ||
| Iiparamitha zamehlo | ||||
| 1 | Uhlobo lweLaser | Ifotodiode | ||
| 2 | Imodeli yeAmplifaya yaMandla |
| I-MMIC | |
| 3 | igalelo lobude bokukhanya (nm) | 1100-1620nm | ||
| 4 | igalelo lamandla okukhanya (dBm) | -18 ~ +2dB | ||
| 5 | Ilahleko yokubonakalisa imbonakalo (dB) | ＞55 | ||
| 6 | Ifom yokudibanisa i-Optical | SC/APC | ||
| Iiparamitha zeRF | ||||
| 1 | Uluhlu lwefrikhwensi ye-RF (MHz) | 45-1002MHz | ||
| 2 | umgangatho wemveliso (dBmV) | ＞20 Izibuko lemveliso nganye (igalelo lokukhanya: -12 ~ -2 dBm) | ||
| 3 | ukucaba (dB) | ≤ ± 0.75 | ||
| 4 | Buyisela ilahleko (dB) | ≥14dB | ||
| 5 | I-impedance ye-RF yemveliso | 75Ω | ||
| 6 | Inani lamazibuko emveliso | 1＆2 | ||
| ukusebenza kwekhonkco | ||||
| 1 |
77 NTSC / 59 PAL amajelo analog | CNR≥50 dB (0 dBm igalelo lokukhanya) | ||
| 2 |
| CNR≥49Db (-1 dBm igalelo lokukhanya) | ||
| 3 |
| CNR≥48dB (-2 dBm igalelo lokukhanya) | ||
| 4 |
| I-CSO ≥ 60 dB, CTB ≥ 60 dB | ||
| Iimpawu zeTV zeDijithali | ||||
| 1 | I-MER (dB) | ≥31 | -15dBm igalelo lamandla okukhanya | |
| 2 | OMI (%) | 4.3 | ||
| 3 | IBER (dB) | <1.0E-9 | ||
| enye | ||||
| 1 | amandla ombane (AC/V) | 100～240 (ukufakwa kweAdapter) | ||
| 2 | Igalelo lamandla ombane (DC/V) | +5V (igalelo leFTTH, imveliso yeadaptha) | ||
| 3 | Ubushushu bokusebenza | -0℃~+40℃ | ||
Umzobo weSchematic
Umfanekiso weMveliso
FAQ
Q1. Yintoni FTTH umamkeli optical?
A: I-FTTH i-optical receiver sisixhobo esisetyenziswa kwiinethiwekhi ze-fiber-to-the-home (FTTH) ukufumana izibonakaliso ze-optical ezithunyelwa ngeentambo ze-optical kwaye ziguqulelwe kwiinkcukacha ezisebenzisekayo okanye iimpawu.
Q2. Isebenza njani i-FTTH umamkeli obonakalayo?
A: I-FTTH i-optical receiver ithatha i-low-power optical reception kunye ne-optical automatic gain control (AGC) iteknoloji. Yamkela igalelo le-optical play kathathu kwaye igcina uzinzo lwesignali nge-AGC. Iguqula i-1100-1620nm isignali yeCATV ibe yimveliso yombane yeRF ukwenzela inkqubo yentambo.
Q3. Zeziphi iingenelo zokusebenzisa i-FTTH i-optical receiver?
A: Izibonelelo zokusebenzisa i-FTTH i-optical receivers iquka ukukwazi ukuxhasa i-fiber-to-the-home deployments, enokubonelela nge-intanethi ye-intanethi, i-TV kunye neenkonzo zefowuni kwi-fiber enye. Ibonelela ngokusetyenziswa kwamandla aphantsi, ukwamkela umqondiso ozinzile kunye nokuguqulwa kwe-photoelectric ephezulu kwiimpawu zeCATV.
Q4. Ngaba i-FTTH imamkeli optical ingaphatha ubude bamaza ahlukeneyo?
A: Ewe, i-FTTH i-optical receivers kunye ne-WDM (i-Wavelength Division Multiplexing) ikwazi ukuphatha ubude obuhlukeneyo, ngokuqhelekileyo phakathi kwe-1100-1620nm, ibenza bakwazi ukuphatha iimpawu ezahlukeneyo ze-CATV ezithunyelwa kwiintambo ze-fiber optic.
Q5. Yintoni intsingiselo yetekhnoloji ye-AGC kwi-FTTH umamkeli obonakalayo?
A: Itekhnoloji yoLawulo oluzenzekelayo (AGC) kwi-FTTH abamkeli be-optical iqinisekisa ukuzinza kwesignali ngokulungelelanisa amandla okufakelwa kwe-optical ukuze kugcinwe inqanaba lesignali elihambelanayo. Oku kuvumela ukuhanjiswa okuthembekileyo, okungaphazamisekiyo kweempawu zeCATV, ukuqinisekisa ukusebenza ngokufanelekileyo kwi-fiber-to-the-home applications.
