I-FTTH Optical Receiver(CT-2002C)
Uhlolojikelele
Lo mkhiqizo uyisamukeli sokubona se-FTTH, sisebenzisa ubuchwepheshe be-AGC bokwamukela ukukhanya kwamandla aphansi kanye nokulawula ukubona, obungakwazi ukuhlangabezana nezidingo ze-fiber-to-the-home, futhi ungasetshenziswa ngokuhambisana ne-ONU noma i-EOC ukuze uzuze ukudlala kathathu. Kukhona i-WDM, i-1550nm ye-CATV yokuguqulwa kwesithombe sikagesi wesignali ye-CATV kanye nokuphumayo kwe-RF, isignali ye-PON engu-1490/1310 nm edlula ngokuqondile, engahlangabezana ne-FTTH eyodwa yokudluliswa kwe-fiber optical CATV+XPON.futhi ihambisane nemvelo ye-XGSPON,
Umkhiqizo uhlangene ngesakhiwo futhi kulula ukuwufaka, futhi ungumkhiqizo okahle wokwakha inethiwekhi yentambo ye-TV ye-FTTH.
Isici
> Igobolondo lepulasitiki lekhwalithi ephezulu elinesilinganiso esihle somlilo.
> Isiteshi se-RF esigcwele isekethe ye-GaAs yomsindo ophansi. Ukwamukela okuncane kwamasignali edijithali ngu-18dBm, futhi ukwamukelwa okuncane kwamasignali e-analog ngu -15dBm.
> Ibanga lokulawula i-AGC lingu-2~ -14dBm, futhi okukhiphayo empeleni akushintshile. (Ibanga le-AGC lingenziwa ngokwezifiso ngokusho komsebenzisi).
> Idizayini yokusetshenziswa kwamandla okuphansi, kusetshenziswa amandla aphezulu okushintsha amandla ukuze kuqinisekiswe ukwethembeka okuphezulu nokuzinza okuphezulu kokunikezwa kwamandla. Amandla asetshenziswa umshini wonke angaphansi kuka-3W, nesifunda sokuthola ukukhanya.
> I-WDM eyakhelwe ngaphakathi, qaphela ukungena kwefayibha eyodwa (1490/1310/1550nm) uhlelo lokudlala oluphindwe kathathu.
> I-SC/APC noma i-FC/APC isixhumi esibonakalayo, i-metric noma intshi yesixhumi esibonakalayo se-RF ngokuzithandela.
> Imodi yokunikeza amandla yembobo yokufaka engu-12V DC.
Izinkomba zobuchwepheshe
| inombolo yomkhiqizo | iphrojekthi | Amapharamitha wokusebenza | |
| Imingcele ye-Optical | |||
| 1 | Uhlobo lwe-laser | I-Photodiode | |
| 2 | Imodeli Yesikhulisamandla | I-MMIC | |
| 3 | i-wavelength yokukhanya yokufakwayo(nm) | 1310, 1490, 1550 | |
| 4 | I-cable TV wavelength (nm) | 1550 ± 10 | |
| 5 | Ubude be-waveleng bokukhanya okukhiphayo (nm) | 1310, 1490 | |
| 6 | Ukuhlukaniswa kwesiteshi (dB) | ≥ 40 (phakathi kuka-1310/1490nm no-1550nm) | |
| 7 | amandla okubona okokufaka(dBm) | -18 ~ +2 | |
| 8 | I-Optical reflection loss (dB) | ＞55 | |
| 9 | Ifomu lesixhumi esibonakalayo | SC/APC | |
| Imingcele ye-RF | |||
| 1 | Ibanga lefrikhwensi ye-RF (MHz) | 45- 1002MHz | |
| 2 | izinga lokuphumayo(dBmV) | ＞20 Imbobo ngayinye yokuphumayo (okokufaka kokubonayo: -12 ~ -2 dBm) | |
| 3 | flatness (dB) | ≤ ± 0.75 | |
| 4 | Ukubuyisela Ukulahlekelwa (dB) | ≥18dB | |
| 5 | I-impedance yokukhishwa kwe-RF | awu 75Ω | |
| 6 | Inombolo yezimbobo zokuphuma | 1; 2 | |
| ukusebenza kwesixhumanisi | |||
| 1 |
77 NTSC / 59 PAL iziteshi ze-analog | I-CNR≥50 dB (0 dBm ukukhanya okokufaka) | |
| 2 | I-CNR≥49Db (-1 dBm okokufaka kokukhanya) | ||
| 3 | I-CNR≥48dB (-2 dBm okokufaka kokukhanya) | ||
| 4 | I-CSO ≥ 60 dB, CTB ≥ 60 dB | ||
| Izici ze-TV yedijithali | |||
| 1 | I-MER (dB) | ≥31 | -15dBm amandla okubona okokufaka |
| 2 | I-OMI (%) | 4.3 | |
| 3 | I-BER (dB) | <1.0E-9 | |
| okunye | |||
| 1 | i-voltage (AC/V) | 100～240 (Okokufaka kwe-adaptha) | |
| 2 | I-voltage yokufaka (DC/V) | +5V (okokufaka kwe-FTTH, ukuphuma kwe-adaptha) | |
| 3 | Izinga lokushisa lokusebenza | -0℃~+40℃ | |
Umdwebo wohlelo
Isithombe somkhiqizo
FAQ
I-FTTH Optical Receiver Imibuzo Evame Ukubuzwa
Q1. Yini i-FTTH optical receiver?
A: Isamukeli sokubona se-FTTH yidivayisi esetshenziswa kumanethiwekhi e-fiber-to-the-home (FTTH). Idizayinelwe ukwamukela amasignali okubonayo avela kumanethiwekhi e-fiber optic futhi iwaguqule abe amasignali kagesi ukuze kuqhutshekwe nokucubungula.
Q2. Sisebenza kanjani isamukeli se-FTTH esibonakalayo?
A: Isamukeli sokubona se-FTTH sisebenzisa ukwamukela okubonakalayo okunamandla aphansi kanye nobuchwepheshe be-optical automatic gain control (AGC). Ubuchwepheshe be-AGC buqinisekisa ukuthi amandla okubona awamukelwe ahlala ebangeni elithile ngokulungisa inzuzo yomamukeli. Lokhu kuqinisekisa ukwamukelwa kwesignali okuthembekile nokusebenza okuphezulu.
Q3. Yiziphi izinzuzo zokusebenzisa isamukeli esibonakalayo se-FTTH?
A: Ukusebenzisa izamukeli ze-FTTH kuletha izinzuzo ezimbalwa kumanethiwekhi e-FTTH. Inika amandla ukwamukela nokuguqulwa kwesignali ye-fiber optic esebenza kahle, ivumela i-inthanethi enesivinini esikhulu, i-TV yedijithali yekhwalithi ephezulu, nezinsizakalo zezwi ezicacile. Ukwengeza, ingahlanganiswa ne-Optical Network Unit (ONU) noma i-Ethernet over Coax (EOC) ngezinsizakalo zokudlala kathathu.
Q4. Yiziphi izinhlelo zokusebenza zabamukeli be-FTTH optical?
A: Izamukeli ze-FTTH ezibonakalayo zisetshenziswa kakhulu kumanethiwekhi e-FTTH ukuxhuma izakhiwo zokuhlala noma ezohwebo nengqalasizinda yefiber optic. Isebenza njengedivayisi yokugcina ethatha amasignali okukhanya ahamba ngezintambo ze-fiber optic futhi iziguqulele kumasignali kagesi afanele amasevisi ahlukahlukene, okuhlanganisa i-inthanethi, ithelevishini, nezwi.
Q5. Ingabe isamukeli se-FTTH esibonakalayo singasetshenziswa nezinye izinto zokusebenza?
A: Yebo, isamukeli se-FTTH esibonakalayo singasetshenziswa kanye ne-ONU noma i-EOC ukuthola isevisi yokudlala kathathu. I-ONU isebenza njengehabhu elimaphakathi lokusabalalisa i-inthanethi, i-TV nezimpawu zezwi ngaphakathi kwezakhiwo, kuyilapho izamukeli ze-FTTH ezibonakalayo ziqinisekisa ukwamukela okuthembekile nokushintshwa kwalawa masignali. Ndawonye, basekela ukuxhumana okungenamthungo kanye nezinsiza ze-multimedia kumanethiwekhi e-FTTH.
