Moni Owerenga, M'nkhaniyi tiphunzira za Kuwongolera Zolakwa ndi gulu lowongolera zolakwika.
Pogwiritsa ntchito kufalitsa deta, chifukwa cha mphamvu ya phokoso pa tchanelo, mawonekedwe a mawonekedwe a chizindikiro akhoza kusokonezeka pamene atumizidwa kwa wolandira, zomwe zimapangitsa kuti pakhale zolakwika. Kuti mukwaniritse zofunikira za zolakwika izi, kuwongolera zolakwika kumafunika. Mfundo yowongolera zolakwika ndikuti ma bits a K atatumizidwa, pamakhala ma R bits a redundant bits pamtengo wamasheya. Chidziwitso cholandiridwa ndi wolandira chimagwiritsa ntchito algorithm yogwirizana, ndipo zotsatira zake zimafaniziridwa ndi zotsatira za wotumiza. cholakwika. Ngati wolandirayo akudziwa kuti pali cholakwika, koma sakudziwa kuti cholakwikacho ndi chiyani, ndiyeno akupempha kutumizanso kwa wotumiza, njirayi imatchedwa kuzindikira zolakwika; ngati wolandira akudziwa kuti pali cholakwika ndipo akudziwa chomwe cholakwikacho, njira iyi imatchedwa kukonza zolakwika.
(2) Kuwongolera zolakwika
Pali mitundu iwiri yowongolera zolakwika: zolakwika pang'ono ndi zolakwika za chimango. Kulakwitsa pang'ono ndikulakwitsa pang'ono, 1 imakhala 0, 0 imakhala 1; pali zolakwa zitatu zotheka chimango: kutayika, kubwerezabwereza, ndi kunja kwa dongosolo. Ngati pali cholakwika chofanana, ndiye kuti tifunika kupempha yankho kuchokera ku data link layer kupita ku seva yoperekedwa ndi network network. Data link layer imapereka ntchito zitatu zofunika pa network network:
1. Palibe chitsimikiziro ndipo palibe ntchito yolumikizana.
2. Tsimikizani kuti palibe ntchito yolumikizana.
3. Utumiki wotsimikizika wokhudzana ndi ulalo.
Zomwe zili pamwambazi ndizofotokozera za "Kuwongolera Zolakwika" zobweretsedwa ndi Shenzhen HDV photoelectric Technology Co., Ltd. Zinthu zoyankhulirana zopangidwa ndi chivundikiro cha kampani: Magawo a module: Optical fiber modules, Ethernet modules, Optical fiber transceiver modules, optical fiber access modules, SSFP Optical modules,ndiSFP kuwala ulusi, ndi zina.
ONUgulu: EPON ONU, AC ONU, Optical fiber ONU, CATV ONU, GPON ONU, XPON PA, ndi zina.
OLTkalasi: Kusintha kwa mtengo wa OLT, Mtengo wa GPON OLT, EPON OLT, kulankhulanaOLT, ndi zina.
Zomwe zili pamwambazi zitha kuthandizira pazochitika zosiyanasiyana zapaintaneti. 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 kuLumikizanani nafe pafunso lamtundu uliwonse.
