Pfupiso yePON tekinoroji nemisimboti yayo yetiweki: Chinyorwa ichi chinotanga kusuma pfungwa, musimboti wekushanda uye hunhu hwePON tekinoroji, uye chobva chakurukura zvakadzama kurongwa kwePON tekinoroji uye maitiro ekushandisa kwayo muFTTX.Chinangwa chechinyorwa ndechekutsanangudza pamusoro pemisimboti yetiweki inoda kuteverwa muPON tekinoroji kuronga kutungamira chaiko kuvaka netiweki basa.
Keywords: PON;OLT;ONU;ODN;EPON;GPON
1. Kutariswa kwePON tekinoroji PON (Passive Optical Network, Passive Optical Network) tekinoroji inyanzvi yetiweki inoshandisa optical fiber senzira yekufambisa uye inoziva kufambiswa kwedata kuburikidza nepassive optical zvishandiso.PON tekinoroji ine mabhenefiti ehurefu hwekutapurirana chinhambwe, yakakwira bandwidth, yakasimba anti-kupindira kugona, uye yakaderera kugadzirisa mutengo, saka yakashandiswa zvakanyanya mumunda wekuwana network.Iyo PON network inonyanya kuumbwa nezvikamu zvitatu:OLT(Optical Line Terminal, optical line terminal), ONU (Optical Network Unit, optical network unit) uye ODN (Optical Distribution Network, optical distribution network).
2. PON tekinoroji kupatsanura uye maitiro ekushandisa muFTTX PON tekinoroji inonyanya kukamurwa kuita marudzi maviri: EPON (Ethernet PON, Ethernet Passive Optical Network) uyeGPON(Gigabit-Inokwanisa PON, Gigabit Passive Optical Network).EPON yakavakirwa paEthernet protocol, ine kuenderana kwakanyanya uye kuchinjika, uye inokodzera akasiyana ebhizinesi mamiriro.GPON ine kukurumidza kutapurirana nekukurumidza uye yakapfuma sevhisi yekutsigira masimba, uye inokodzera mamiriro ane yakakwirira bandwidth uye QoS zvinodiwa.MuFTTX (Fiber To The X) zvikumbiro, tekinoroji yePON inoita basa rakakosha.FTTX inoreva dhizaini yekuvaka inoisa optical fiber padyo nenzvimbo yemushandisi kana zvishandiso zvemushandisi.Zvinoenderana nematanho akasiyana eiyo optical fiber yekuisa, FTTX inogona kukamurwa kuita akasiyana mafomu akadai seFTTB (Fiber To The Building) uye FTTH (Fiber Kumba Kumba).Seimwe yenzira dzakakosha dzekuita dzeFTTX, tekinoroji yePON inopa vashandisi vane yakakwirira-kumhanya uye yakagadzikana network yekubatanidza.
3. PON tekinoroji networking misimboti MuPON tekinoroji kuronga network, zvinotevera misimboti yetiweki inofanirwa kuteverwa:
Iyo network yekuvaka iri nyore uye inoshanda:mazinga etiweki uye nhamba ye node inofanira kuderedzwa zvakanyanya sezvinobvira kuderedza network kuoma uye mari yekugadzirisa.Panguva imwecheteyo, zvinodikanwa kuve nechokwadi chekuti network ine kuvimbika kwakanyanya uye kugadzikana kusangana nezvinodiwa zvebhizinesi revashandisi.
Yakasimba bhizinesi kutakura kugona:PON network inofanirwa kunge iine yakakwirira bandwidth uye QoS vimbiso yekugona kusangana nevashandisi vari kukura bhizinesi zvinodiwa.Panguva imwecheteyo, zvinodikanwa kutsigira akawanda mabhizinesi emhando uye terminal mudziyo kuwana kuti uwane kubatanidzwa kwebhizinesi uye kwakabatana manejimendi.
Kuchengetedzwa kwepamusoro:PON network inofanirwa kutora nzira dzakasiyana dzekuchengetedza kuve nechokwadi chekuvanzika, kutendeseka uye kuwanikwa kwekufambiswa kwedata.Semuenzaniso, nzira dzekuchengetedza dzakadai seyakavharidzirwa kufambisa uye kutonga kwekuwana zvinogona kushandiswa kudzivirira kurwiswa kwenetiweki uye kudonha kwedata.
Yakasimba scalability:PON network inofanirwa kunge iine scalability yakanaka uye inokwanisa kujairana nekuchinja mune ramangwana bhizinesi zvinodiwa uye kuvandudza tekinoroji.Semuenzaniso, chiyero chetiweki uye kuvharika kunogona kuwedzerwa nekusimudzira OLT neONU michina kana kuwedzera maODN node.
Kugarisana kwakanaka:PON network inofanirwa kutsigira akawanda mazinga uye mapuroteni uye kukwanisa kubatanidza zvisina mutsetse uye kupindirana nemanetiweki aripo nemidziyo.Izvi zvinobatsira kuderedza mari yekuvaka nekugadzirisa uye kugadzirisa kushandiswa kwetiweki uye kuvimbika.
4.Mhedziso yePON tekinoroji, sehunyanzvi uye hwakavimbika optical fiber access tekinoroji, ine tarisiro yakakura yekushandisa mumunda wekuwana network.Nekutevera misimboti yetiweki yekuronga nekugadzirisa netiweki, kuita uye kugadzikana kwePON network inogona kuvandudzwa kuti isangane nezviri kukura zvebhizinesi zvinodiwa nevashandisi.Panguva imwecheteyo, nekuenderera mberi kwekufambira mberi kwetekinoroji uye nekuenderera mberi kwekuwedzera kwemamiriro ekushandisa, tekinoroji yePON ichaita basa rakakosha mune ramangwana.
Nguva yekutumira: Mar-12-2024
