1. IEEE802.11b ndi IEEE802.11g onse amagwiritsidwa ntchito mu 2.4GHz frequency band. Tiyeni tifotokoze ma protocol awiriwa mosalekeza kuti timvetsetse miyezo ya ma protocol osiyanasiyana.
IEEE 802.11b ndi mulingo wa ma netiweki am'deralo opanda zingwe. Mafupipafupi onyamulira ake ndi 2.4GHz, ndipo amatha kupereka maulendo angapo opatsirana a 1, 2, 5.5, ndi 11 mbit / s, mpaka 11 mbit / s. Nthawi yake yotulutsidwa ndi yachangu ka 5 kuposa muyezo wa IEEE 802.11 womwe wangovomerezedwa zaka ziwiri zapitazo, womwe wakulitsa gawo logwiritsa ntchito ma netiweki am'deralo opanda zingwe ndikupereka chithandizo chofunikira pamitengo yayikulu yotumizira. Pogwiritsidwa ntchito, ma bandwidth osiyanasiyana a 5.5 Mbps, 2 Mbps, ndi 1 Mbps angagwiritsidwe ntchito molingana ndi momwe zilili. Pambuyo poyesedwa kwenikweni, liwiro lenileni logwira ntchito ndi pafupifupi 5 MB/s, lomwe lili pafupifupi pamlingo wofanana ndi wamba 10Base-T chingwe LAN. Mu gulu la ISM la 2.4GHz, pali mayendedwe 11 okhala ndi bandwidth ya 22mhz omwe alipo, omwe ndi magulu 11 opitilira. Muyezo wolowa m'malo mwa IEEE 802.11b ndi IEEE 802.11g.
2. IEEE 802.11g inavomerezedwa mu July 2003. Mafupipafupi onyamulira ndi 2.4GHz (mofanana ndi 802.11b), ndipo pali 14 maulendo afupipafupi. The original kufala liwiro ndi 54 Mbit/s, ndi ukonde kufala liwiro ndi za 24.7 Mbit/s (chimodzimodzi 802.11a). Chipangizo cha 802.11g ndichotsika pansi chogwirizana ndi 802.11b.
Kuyambira pamenepo, ena opanda zingwerautaopanga apanga miyezo yatsopano yotengera muyezo wa IEEE 802.11g kuti akwaniritse zosowa za msika ndipo awonjezera liwiro lofikira ku 108 mbit/s kapena 125 mbit/s. Pakalipano, pali ndondomeko zotsatila monga IEEE 802.ax zomwe zimaphatikizapo WiFi 6 kapena pamwamba, zomwe zonse zimakongoletsedwa mu PHY wosanjikiza kuti ziwonjezeke mofulumira kuposa Gigabit, kotero sitidzakambirana nawo pano.
Chithunzi chotsatirachi ndichidule cha IEEE802.11a IEEE802.11b IEEE802.11g:
Pamwambapa ndikufotokozera kwa chidziwitso cha IEEE 802.11b/IEEE 802.11g chobweretsedwa ndiMalingaliro a kampani Shenzhen HDV Phoelectron Technology Co., Ltd. ndikukhulupirira kuti nkhaniyi ingakuthandizeni kukulitsa chidziwitso chanu. Kupatula nkhaniyi ngati mukuyang'ana kampani yabwino yopanga zida zoyankhulirana zama fiber zomwe mungaganizirezambiri zaife.
Zinthu zoyankhulirana zopangidwa ndi kampaniyi zikuphimba:
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 zimatha kuthandizira zochitika zosiyanasiyana zapaintaneti. Pazinthu zomwe tatchulazi, gulu la akatswiri komanso lamphamvu la R & D limaphatikizidwa kuti lipereke chithandizo chaukadaulo kwa makasitomala, ndipo gulu loganiza bwino komanso laukadaulo litha kupereka chithandizo chapamwamba kwambiri kwamakasitomala koyambirira.kukambilanandipo kenako ntchito.
