GWR3300 Quad Return Path wolandila
Mafotokozedwe Akatundu
GWR3300 rack Mount Return Receptor idapangidwa kuti ilandire chizindikiro chamkati cha CATV.Mu 19 ″ 1RU rack, pali opitilira 4 odziyimira pawokha olandila optical, omwe amalandira njira yobwerera kuchokera ku ma node athu owoneka ngati fiber kupita ku nyumbayo kapena maukonde anayi a PON ngati fiber kupita kunyumba.Wolandira aliyense ali ndi diode yotsika ya PIN, preamplifier ya GaAs, fyuluta yotsika ya band pass and high output level RF amplifier, yopereka mpaka 45dBmV mulingo wotuluka pagulu lakumbuyo la 19” 1RU.Diode ya PIN imathandizira 1260nm ~ 1650nm kuwala kwakutali, kuphatikiza 1310nm, 1550nm ndi njira zina za CWDM.Pagawo lakutsogolo, pali -20dB RF yoyeserera doko limodzi ndi chowongolera chokhazikika chokhazikika kwa wolandila aliyense, ndikupangitsa kukhazikitsidwa kosavuta kwa njira iliyonse yobwerera mulingo wa RF.Bandiwifi ya wolandila njira iliyonse yobwerera ndi 5MHz ~ 204MHz, yofananira nodi ya RF band kugawanika kwa 42/54MHz, 65/85MHz, 85/102MHz, 204/258MHz, kuthandizira Docsis 2.0, Docsis 3.0 ndi ma modemu a Docsis 3.1 a RF mmwamba.Mwa kuyankhula kwina, GWR3300 ikhoza kuthana ndi zizindikiro zonse za CATV zamtunda, mosasamala kanthu za mawonekedwe a kuwala kapena ma RFoG micronodes.
Kupatula njira zinayi zodziyimira pawokha zotuluka za RF, pali doko limodzi la RF lomwe limaphatikiza zotuluka zinayi ngati RF imodzi yotulutsa, yomwe ndiyosavuta kulumikizana ndi doko la CMTS US.
Ndi mawonekedwe apamwamba a photodiode ndi amplifier wosakanizidwa, GWR3300 imapereka bandi yobwerera yoyera ya ma Cable Modem akukhamukira mmwamba ma sigino.Chizindikiro chamagetsi owoneka bwino ndi doko loyeserera la RF pagawo lakutsogolo limatha kuwonetsa momwe wolandila ali.
Zina:
• 1550nm/1310nm wavelength wapawiri.
• 4 RPR yodziyimira payokha mu 19” 1U imodzi yokhazikika.
• Phokoso lochepa, photodiode yapamwamba kwambiri.
• 5- 204 MHz RF Bandwidth.
• Zosefera ziwiri zodutsa gulu kuti muchepetse phokoso lokwera.
• Kusintha kwa zotulutsa ndi -20dB RF kuyesa kumapezeka pagawo lakutsogolo.
