GWR1200 CATV Optical Node
Mafotokozedwe Akatundu
GWR1200 Optical Node ili ndi nyumba za aluminiyamu zakunja zomwe zimatuluka kutsogolo kwa analogi TV, DVB-C ndi CMTS DS siginecha ndikutumiza ma siginecha a modemu okwera pamakina okhazikika kapena ophulika pamtundu umodzi wa Bi-directional fiber kapena 2nd fiber. Ndi abwino kwa ulusi wapamwamba kupita kumalo (FTTP) ndi fiber to the building (FTTB) ntchito pa CATV ndi intaneti. GWR1200 node imapereka RF yotulutsa kwambiri mpaka 1.2 GHz (1218MHz) yomwe ingachepetse kapena kuthetsa kufunikira kwa amplifier ya post-node pamaneti.
GWR1200 node ndiyoyenera kugwiritsa ntchito kachulukidwe kwambiri: MDU, mayunivesite, zipatala ndi malo ochitira bizinesi. GWR1200 imadzitamandira ndi 50dBmV yotulutsa yomwe imayendetsa kukula kulikonse. Ma transmitter obwerera amatha kukhala 1310nm kapena 1550nm kutengera zofunikira padongosolo. Ukadaulo wa WDM wosankha umalola magwiridwe antchito anjira ziwiri pa chingwe chimodzi. Ma transmitters a CWDM amaperekedwa kuti aphatikize ma node angapo anjira ziwiri pa ulusi umodzi.
Monga njira yakunja, GWR1200 yapanga chitetezo cha 4KV pamadoko onse a RF.
GWR1200 njira yobwereranso yotumizira imatha kukhazikitsidwa panjira yophulika kuti muchepetse phokoso lanjira yobwerera. Chipangizochi chimagwiritsa ntchito chingwe chimodzi ndipo chimalandira zizindikiro zotsika pansi pa 1550nm ndipo zotumiza zobwerera zimatha kulamulidwa ngati 1310nm kapena 1610nm kapena CWDM wavelengthes malinga ndi zofunikira za dongosolo. Monga chipangizo cha RFOG chimagwirizana ndi DOCSIS® ndi machitidwe onse a HFC obwerera ku ofesi.
Zina:
• Aluminium Die Cast Outdoor Housing.
• Ma fiber awiri kapena Single fiber bi-directional optical transmission.
• 1005MHz kapena 1218MHz njira yakutsogolo RF bandiwifi.
• Zotulutsa za 110dBµV imodzi kapena zapawiri 106 dBµV Forward RF.
• Forward Path 15dB Slop ndi 15dB attenuator.
• AGC yogwira ntchito pa -5dBm~+1dBm kuyika kwa kuwala.
• 5~85MHz/204MHz bweretsani njira ya RF bandwidth.
• Kufikira 16 CWDM DFB laser wavelength ikugwira ntchito pophulika.
• Chitetezo cha 4KV Surge.
• 60V kapena 220V magetsi.
