I-GWR1200 CATV Optical Node
Incazelo Yomkhiqizo
I-GWR1200 Optical Node inendlu ye-aluminium ephuma ngaphandle ekhipha indlela eya phambili ye-analog TV, i-DVB-C namasiginali we-CMTS DS futhi ithumela amasignali emodemu yekhebula ekhuphuka nomfula ngemodi evamile noma yokuqhuma ngefayibha eyodwa ye-Bi-directional noma i-2nd fiber. Zilungele ifayibha ethuthukisiwe eya ezakhiweni (FTTP) kanye ne-fiber eya esakhiweni (FTTB) izicelo ku-CATV namanethiwekhi e-inthanethi. I-GWR1200 node ihlinzeka ngokukhipha okuphezulu kwe-RF kufika ku-1.2 GHz (1218MHz) okuzonciphisa noma kuqede isidingo se-post-node amplifier kunethiwekhi.
I-GWR1200 node ilungele izicelo zokuminyana okuphezulu: i-MDU, amanyuvesi, izibhedlela namapaki amabhizinisi. I-GWR1200 izidla ngokukhipha okungu-50dBmV okusingatha noma yimuphi usayizi wokusungulwa. Isidlulisi sendlela ebuyayo singaba ngu-1310nm noma 1550nm kuye ngezidingo zesistimu. Ubuchwepheshe be-WDM obungakhethwa buvumela ukusebenza kwezindlela ezimbili ku-fiber eyodwa. Ama-transmitters e-CWDM anikezwa ukuhlanganisa ama-node amaningi anezindlela ezimbili ku-fiber eyodwa.
Njenge-Optical node yangaphandle, i-GWR1200 iklame ukuvikelwa kokuhlinzwa kwe-4KV kuzo zonke izimbobo ze-RF.
Isidlulisi sendlela yokubuya ye-GWR1200 singasethwa kumodi yokuqhuma ukuze kuncishiswe umsindo wendlela yokubuya. Idivayisi isebenzisa ifayibha eyodwa futhi ithola amasignali angezansi komfula ku-1550nm futhi izidluliseli ezibuyayo zinga-odwa njenge-1310nm noma i-1610nm noma i-CWDM wavelengthes kuye ngezidingo zesistimu. Njengedivayisi ye-RFOG iyasebenzisana ne-DOCSIS® kanye nakho konke ukusebenza kwehhovisi le-HFC eliyifa.
Ezinye izici:
• I-Aluminium Die Cast Izindlu zangaphandle.
• Imicu emibili noma i-Single fibre bi-directional optical transmission.
• 1005MHz noma 1218MHz indlela eya phambili yomkhawulokudonsa we-RF.
• Okuphumayo okungu-110dBµV okukodwa noma okubili kwe-106 dBµV Phambili kwe-RF.
• Phambili Umzila 15dB Slop kanye ne-15dB attenuator.
• I-AGC isebenza kahle kokuthi -5dBm~+1dBm optical input.
• 5~85MHz/204MHz buyisela inketho yomkhawulokudonsa we-RF.
• Kufikela ku-16 CWDM DFB laser wavelength esebenza kumodi yokuqhuma.
• I-4KV Surge Protection.
• Ukunikezwa kwamandla okungu-60V noma okungu-220V.
