1. IEEE802.11b kanye ne-IEEE802.11g zombili zisetshenziswa kubhendi yefrikhwensi engu-2.4GHz. Ake sichaze lezi zimiso ezimbili ngendlela eqhubekayo ukuze siqonde izindinganiso zamaphrothokholi ahlukene.
I-IEEE 802.11b indinganiso yamanethiwekhi endawo angenantambo. Imvamisa yenkampani yenethiwekhi ingu-2.4GHz, futhi inganikeza isivinini sokudluliswa okuningi kwe-1, 2, 5.5, kanye no-11 mbit/s, kufika ku-11 mbit/s. Isikhathi sokukhishwa kwayo sishesha izikhathi ezi-5 kunezinga le-IEEE 802.11 elisanda kuvunyelwa eminyakeni emibili edlule, elinwebe inkambu yokusetshenziswa kwamanethiwekhi endawo angenantambo futhi lanikeza ukusekelwa okuyisisekelo kwamazinga aphezulu okudlulisela. Ekusetshenzisweni, ama-bandwidths ahlukene we-5.5 Mbps, 2 Mbps, ne-1 Mbps angasetshenziswa ngokuvumelana nesimo sangempela. Ngemva kokuhlolwa kwangempela, isivinini sokusebenza sangempela singaba ngu-5 MB/s, esicishe sibe sezingeni elifanayo nele-LAN yekhebula engu-10Base-T evamile. Kubhendi ye-ISM engu-2.4GHz, kuneziteshi ezingu-11 ezinomkhawulokudonsa ongu-22mhz otholakalayo, okungamabhendi agqagqene angu-11. Izinga lomlandeli ku-IEEE 802.11b lithi IEEE 802.11g.
2. I-IEEE 802.11g yamukelwa ngoJulayi 2003. Imvamisa yenkampani yenethiwekhi ingu-2.4GHz (iyafana no-802.11b), futhi kukhona amabhendi efrikhwensi angu-14. Isivinini sokuqala esingu-54 Mbit/s, kanti isivinini sokuhambisa silinganiselwa ku-24.7 Mbit/s (okufana no-802.11a). Idivayisi ye-802.11g iya phansi iyahambisana ne-802.11b.
Kusukela ngaleso sikhathi, abanye wirelessumzilaabakhiqizi bathuthukise amazinga amasha asuselwa kuzinga le-IEEE 802.11g ukuze bahlangabezane nezidingo zemakethe futhi bakhuphule isivinini sokudluliswa kwethiyori ukuya ku-108 mbit/s noma ku-125 mbit/s. Okwamanje, kunezimiso ezilandelwayo zokulandelela ezifana ne-IEEE 802.ax ehlanganisa i-WiFi 6 noma ngaphezulu, wonke athuthukiswe kusendlalelo se-PHY ukuze kukhuliswe isivinini sibe ngaphezu kwe-Gigabit, ngakho-ke ngeke sixoxe ngazo lapha.
Isithombe esilandelayo siyisifinyezo se-IEEE802.11a IEEE802.11b IEEE802.11g:
Okungenhla incazelo yolwazi ye-IEEE 802.11b/IEEE 802.11g elethwe nguI-Shenzhen HDV Phoelectron Technology Co., Ltd. ngethemba ukuthi lesi sihloko singakusiza ukukhulisa ulwazi lwakho. Ngaphandle kwalesi sihloko uma ufuna inkampani enhle yabakhiqizi bemishini yokuxhumana ye-fiber ongase uyicabangeleMayelana NATHI.
Imikhiqizo yokuxhumana ekhiqizwe yikhava yenkampani:
Imojuli:amamojula we-fiber optical, Amamojula we-Ethernet, amamojula we-fiber optical transceiver, amamojula okufinyelela kwefiber optical, Amamojula we-SSFP optical, futhiImicu ye-Optical SFP, njll.
I-ONUisigaba:EPON ONU, AC ONU, i-fiber optical ONU, I-CATV ONU, I-GPON ONU, XPON ONU, njll.
OLTisigaba:Ukushintsha kwe-OLT, I-GPON OLT, I-EPON OLT, ukuxhumanaOLT, njll.
Imikhiqizo engenhla ingasekela izimo zenethiwekhi ezahlukahlukene. Kule mikhiqizo engenhla, ithimba le-R & D eliqeqeshiwe nelinamandla limataniswe ukuze linikeze amakhasimende ukwesekwa kobuchwepheshe, futhi ithimba lebhizinisi elicabangayo nelichwepheshile linganikeza izinsizakalo zekhwalithi ephezulu kumakhasimende kusenesikhathi.ukubonisanafuthi kamuva umsebenzi.
