Pakalipano, ponena za teknoloji ya optical fiber access network, kupeza kwa narrowband pang'onopang'ono kumasinthidwa ndi mwayi wa Broadband, ndipo pamapeto pake fiber home imatheka.Broadband Optical fiber ya network access imakhala yosapeŵeka, ndipo ukadaulo wa PON udzakhala malo aukadaulo amtundu wa Broadband access network mtsogolomo chifukwa cha ntchito zambiri, ndalama zochepa komanso kukonza kosavuta.
Kodi fiber access network ndi chiyani?
The optical fiber access network imatanthawuza netiweki yofikira momwe njira yotumizira ndi fiber optical.Manetiweki owoneka bwino amatha kugawidwa mwaukadaulo m'magulu awiri: ma network owoneka bwino (AON, Active Optical Network) ndi ma passive optical network (PON, Passive Optical Network).
Active Optical network ikhoza kugawidwa mu AON kutengera SDH ndi AON kutengera PDH;
Passive Optical network atha kugawidwa kukhala narrowband PON ndi Broadband PON.
Kodi network access imagwira ntchito yanji pakupanga maukonde?
Mauthenga azidziwitso amapangidwa ndi ma core backbone network, network ya metropolitan area, network access network, ndi kasitomala malo network.Network access ili pamlatho wa metropolitan area network / backbone network.
Pakalipano, sayansi ndi zamakono zikupita patsogolo kwambiri, ndipo chiwerengero chachikulu cha mafayilo apakompyuta chimapangidwa nthawi zonse.Ndi kudalirana kwachuma padziko lonse lapansi komanso kuwonjezereka kwa chidziwitso cha chikhalidwe cha anthu, intaneti yakhala yotchuka kwambiri, ntchito za deta zakula kwambiri, ndipo mitundu ya mauthenga a telecommunication ikupitirirabe kukula.Mtundu wamalonda.Narrowband access network yakhala cholepheretsa kukula kwa netiweki ku Broadband.Msika wopezera intaneti uli ndi mphamvu zambiri, ndipo matekinoloje atsopano akutuluka nthawi zonse kuti akwaniritse zosowa za ogwiritsa ntchito.The access network ndiye cholinga komanso chinsinsi cha chitukuko cha chidziwitso cha dziko.Ukadaulo wofikira pa intaneti wakhala malo omwe amayang'ana kwambiri ndikuyika ndalama m'mabungwe ofufuza, ogulitsa mauthenga, makampani olumikizirana matelefoni ndi madipatimenti ogwira ntchito.
Ubwino wa PON
1. Itha kupereka kuthekera kowonekera kwa burodibandi ndi zotsika mtengo zotumizira.
2. Poyerekeza ndi makina ogwiritsira ntchito optical network, kuika kwake, kutumiza ndi kukonzanso ndalama zogwirira ntchito ndizochepa, ndipo dongosololi ndi lodalirika komanso lokhazikika, kotero kuti intaneti ikugwiritsa ntchito machitidwe ambiri a PON.
3. Chifukwa PON imagwiritsa ntchito njira yofikira pa mfundo-to-multipoint, mtengo wamtengo wapatali wa kuika kuwala kwa fiber pakati pa ofesi yapakati ndi ogwiritsa ntchito amanyamulidwa ndi ogwiritsa ntchito, zomwe zingathe kuwonjezera kubwezeredwa kwa ndalama pakumanga maukonde.Poyerekeza ndi njira yopangira makina opangidwa ndi mapeto a optical kwa wogwiritsa ntchito aliyense, kuchuluka kwa zipangizo za PON zomwe zimathandizira mautumiki kwa chiwerengero chofanana cha makasitomala ndizochepa ndipo zimatenga malo ochepa ku ofesi yapakati.
4. PON imathandizira ntchito zonse zachikhalidwe (ma foni amtundu wa POTS, TV ya analogi) ndi mautumiki a broadband (IP voice transmission, IPTV, broadband Internet access, etc.).
5.PON imathandizira ogwiritsa ntchito onse okhala (pogwiritsa ntchito POTS, TV ya analogi ndi ma data) ndi ogwiritsa ntchito ambiri (pogwiritsa ntchito T1 / E1 ndi mautumiki a Efaneti) kuti agawane netiweki yolumikizira (kuphatikiza ndi wosanjikiza ndi protocol wosanjikiza) popanda kugwiritsa ntchito mwayi wosiyanasiyana. Kupeza maukonde kumapereka chithandizo kwa iwo, motero kuchepetsa kuchuluka kwa maukonde amwazikana.