Masiku ano, ndi kukhathamiritsa kosalekeza ndi kukweza kwa ma module a fiber optical, PON (passive optical fiber network) yakhala njira yofunikira yonyamula mautumiki amtundu wa Broadband.PON imagawidwa kukhala GPONndiEPON. GPON tinganene kuti ndi mtundu wokwezedwa wa EPON.Nkhaniyi, etu-link, ikubweretsani kuti mumvetse GPON Optical module.
Choyamba, teknoloji ya GPON ndi yapamwamba kuposa EPON pogwiritsira ntchito bandwidth, mtengo, chithandizo chamagulu ambiri, ntchito za OAM ndi zina.GPON imagwiritsa ntchito scrabling code monga mzere wa mzere, kungosintha kachidindo popanda kuwonjezera kachidindo, kotero palibe kutayika kwa bandwidth.Pankhani ya mtengo umodzi wokha, mtengo wake ndi wotsika ndi liwiro la Gigabit.Chifukwa cha mawonekedwe ake apadera, imatha kuthandizira ntchito za ATM ndi ntchito za IP.OAM ili ndi zidziwitso zambiri, kuphatikiza kugawa kwachilolezo cha bandwidth, dynamic bandwidth allocation (DBA), kuyang'anira maulalo, kusinthana kwachitetezo, kusinthana makiyi, ndi ma alarm osiyanasiyana.
Zofunikira za GPON system Optical module zimagawidwa m'magulu atatu: A, B, ndi C. Zizindikiro za kuwala kwa msinkhu uliwonse ndizosiyana.Pakali pano, amagawidwa makamaka m'magulu b+ ndi c+.Mphamvu zolandirira za mbali ya ONU nthawi zambiri zimakhala pafupifupi 1-2dBm zocheperapo za mbali ya OLT.Kusiyana kwake kuli motere:
Ntchito yaikulu yaGPON ONU Optical module ndiyo kulandira ndi kutulutsa kuwala, komwe kumazindikiridwa ndi laser, kutembenuza chizindikiro chamagetsi chosinthika kukhala chizindikiro cha kuwala ndikuchiyika mu network ya optical fiber kuti ifalitse.Wolandira amalandira kuwala, amakulitsa kuwala komwe analandira ndikusandulika kukhala chizindikiro chamagetsi ku dongosolo kuti agwiritse ntchito zizindikiro kuti apeze zambiri zothandiza.Mtundu wa phukusi ndi SFP, SC mawonekedwe, mlingo wotumizira ndi 1.25g / 2.5g, mtunda wotumizira akhoza kufika 20km.Kutalika kwa mafunde ndi 1310nm ndipo kutalika kwake ndi 1490nm.Ntchito ya digito ya DDM imathandizidwa, ndipo kutentha kwa ntchito zamalonda (0 °C - 70 °C) ndi kalasi ya mafakitale (-40 °C - +85 °C) ndizosankha.
Chithunzi cha GPON OLT Optical module imayikidwa ndi SFP, SC mawonekedwe, 2.5g / 1.25g transmission rate, 20km transmission distance, 1490nm transmission wavelength, 1310nm kulandira wavelength, ndi chithandizo cha DDM digito matenda ntchito, kupanga kukhala oyenera optical line terminals.
Zomwe zili pamwambazi ndi chidziwitso cha GPON Optical module yobweretsedwa ndi Shenzhen HDV photoelectric Technology Co., Ltd. Zinthu zomwe zimapangidwa ndi chivundikiro cha kampani. Optical fiber modules, Ethernet modules, Optical fiber transceiver modules, ma modules optical fiber access, SSFP Optical modules,ndiSFP kuwala ulusi, etc. Zomwe zili pamwambazi zimatha kupereka chithandizo pazochitika zosiyanasiyana za intaneti.Gulu la akatswiri komanso lamphamvu la R&D litha kuthandiza makasitomala omwe ali ndi zovuta zaukadaulo, ndipo gulu loganiza bwino komanso laukadaulo litha kuthandiza makasitomala kupeza ntchito zapamwamba panthawi yokambirana zisanachitike komanso pambuyo popanga.Takulandirani ku Lumikizanani nafe pafunso lamtundu uliwonse.