I-GWR3300 Quad Return Return receiver
Incazelo Yomkhiqizo
I-GWR3300 rack Mount Return Receiver iklanyelwe ukwamukela isignali ye-CATV yangaphakathi.Kundawo yokubeka engu-19” 1RU, kukhona izamukeli ze-optical ezizimele ezi-4 eziphezulu ezizimele, ezithola amasiginali okubona indlela yokubuya avela ezindaweni zethu ezibonakalayo uma kwenzeka kuba nefayibha eya esakhiweni noma inethiwekhi emine ye-PON uma kwenzeka kuba nefayibha eya ekhaya.Umamukeli ngamunye une-PIN yomsindo ophansi eyakhelwe ngaphakathi, i-preamplifier ye-GaAs, isihlungi se-low band pass kanye ne-RF amplifier yezinga eliphezulu lokuphumayo, ehlinzeka ngezinga lokuphumayo elingafika ku-45dBmV kuphaneli yangemuva engu-19” 1RU.I-PIN diode isekela i-1260nm ~ 1650nm optical wavelength, kufaka phakathi i-1310nm edumile, i-1550nm nezinye iziteshi ze-CWDM.Kuphaneli engaphambili, kunembobo yokuhlola eyodwa engu-20dB RF kanye nesibaliseli esisodwa esingaguquki esilungisekayo somamukeli ngamunye, okuvumela ukusethwa okulula kwendlela ngayinye yokubuya kwezinga lokuphuma kwe-RF.Umkhawulokudonsa womamukeli ngamunye wendlela yokubuya ngu-5MHz~204MHz, i-optical nodi ye-RF ehlukanisayo engu-42/54MHz, 65/85MHz, 85/102MHz, 204/258MHz, esekela i-Docsis 2.0, i-Docsis 3.0 kanye nemodemu yekhebula ye-Docsis 3.1 ekhuphukayo.Ngamanye amazwi, i-GWR3300 ingabhekana nazo zonke izimpawu ze-CATV ezikhuphuka nomfula, kungakhathaliseki ukuthi ama-optical nodes noma ama-micronode e-RFoG.
Ngaphandle kwezindlela ezine ezizimele zokubuyisela eziphumayo ze-RF, kunembobo ye-RF eyodwa ehlanganisa okokuphumayo kwezamukeli okukodwa njengokuphumayo kwe-RF, okulula ukuxhumana nembobo ye-CMTS US.
Ngokusebenza okuphezulu kwe-photodiode kanye ne-hybrid amplifier, i-GWR3300 inikeza ibhendi yendlela ehlanzekile yokubuya kumasiginali okusakaza phezulu we-Cable Modemu.Isikhombi samandla abonakalayo kanye nembobo yokuhlola ye-RF kuphaneli yangaphambili ingabonisa isimo somamukeli.
Ezinye izici:
• 1550nm/1310nm ubude begagasi obubili.
• 4 RPR ezimele endaweni eyodwa 19” 1U ejwayelekile.
• Umsindo ophansi, i-photodiode yomugqa ophezulu.
• 5- 204 MHz RF Ububanzi.
• Izihlungi ze-band pass ezimbili zokucindezela umsindo okhuphukayo.
• Ukulungiswa kokuphumayo kanye nokuhlolwa kwe--20dB RF kuyatholakala kuphaneli yangaphambili.
