Intambo Ethernet: inkcazelo, injongo, iindidi zemveliso

Kuba ufakelo lothungelwano computer usebenzisa Ethernet intambo eyodwa (Lan-USB). Kukho iindidi eziliqela ezisisiseko iingcingo: sibini, ephothiweyo, ezinjalo, kunye nefayibha optic. Uhlobo lokuqala ithathwa ukuba libiza kancinane kwaye eyona ilula, ngoko isetyenziselwa ngaphezulu kwama-90 ekhulwini zonke iinethiwekhi basekuhlaleni.

Types of pair ephothiweyo

Le ntambo Ethernet Kuyinto eqhelekileyo kakhulu nabadumileyo. It iqulathe ababhexeshi zobhedu asibhozo uyahambelana ngokufanayo. Izinto yokwambathisa esetyenziswa yi PVC bhetyebhetye. Kukho iintlobo ezininzi sibini, ephothiweyo, ezahlukeneyo kwezinye uhlobo ngalunye zokukhusela okanye ukungabikho. umsebenzi Ukuzikhusela ukwenza ngefoyile ye-aluminiyam ibhijelwe iingcingo, okanye ubhedu qhina isibini ngasinye. Ukongeza, kukho iintlobo odityanisiweyo we yokhuseleko. Ethernet cable Wayebafihla ukumelana kuphazamiseko yangaphandle, kodwa, ngokulandelelana, ukuba unalo ixabiso elikhulu. Kukho kwakhona iintlobo, ephothiweyo-isibini, oxeliweyo ngokuqaba "CA ', nto leyo ebonisa ukuba udidi lwe ugesi. Kukho iintlobo ezisixhenxe zeli parameter. Uphakamile inombolo udidi, kokukhona umthamo intambo, oko kukuthi usebenzisa abaqhubi ngaphezulu. Ngenxa yoko, udidi wesixhenxe isibini ephothiweyo (umhla wokugqibela) ikuvumela ukuba inkqubo iqaqambisa iinkcukacha ngesantya 40 Gbit / s. Ukubonelela isantya enjalo ngaphandle uphawu ubugqwetha, isibini ngasinye ababhexeshi kwi intambo kufuneka ukuvimba uphawu lwe ohms 100.

Ethernet cable yafakwa

Olu hlobo locingo sakhiwa umqhubi kunye nomkhusane kokuba umgca oqhelekileyo ujikelezo. Intambo iqulathe umqhubi, i yokwambathisa, PVC esingxotyeni, ubhedu okanye aluminium qhina. Namhlanje, olu hlobo wire esetyenziswa umqhubi ye-eriyali. networks Local, yaququzelelwa yafakwa, phantse namnye. Kwicingo iqhelekileyo kunye ukuvimba uphawu 50 ohms - kwinethiwekhi yekhompyutha - 77 ohms - ukudlulisa umqondiso kamabonakude. Ubuninzi umthamo ukudluliselwa datha 10 Mbit / s. Ukongezelela, oko akunakwenzeka, njengoko kakhulu nzima ukulungisa iindawo ezimashakeleyo, nto leyo kamva ekhokelela ilahleko ebonakalayo.

ifayibha optical

Ezi iintambo Ethernet luphawulwa eziphango phantsi, naxa ekudluliseleni data imigama emide, abekho phantsi kuphazamiseko. Ngaphezu koko, lo ifayibha woqondo unalo ngesantya esiphezulu wokuguqulela. Ukuze alungise phantsi kovavanyo, intambo ifuna izixhobo ezikhethekileyo kunye nezixhobo, kunye nemfuneko ukuqhagamshela izixhobo ecacicleyo. Olu hlobo lunqabe isetyenziselwa ukwakhiwa zothungelwano kwi indlu okanye i-ofisi, kuba, ukongeza izixhobo ezintsonkothileyo, isiphathele ixabiso kunokuba phezulu.

Ethernet-cable pinout

Standard isibini ezine isibini ezijijekileyo ukuze ukwakha uthungelwano local crimped isinxibelelanisi RJ-45 uhlobo. scheme Ukuxhuma lo myalelo ulandelayo: emhlophe-eluhlaza, oluhlaza, omhlophe, orenji, oluhlaza, omhlophe, oluhlaza, o-orenji, nangwevu, namhlophe kunye wire esimdaka. schemes Crimping bendawo ngokuxhomekeke injongo kokuxhuma imigca, ubuchwepheshe kunye nemigangatho transfer ulwazi. Ngamanye amaxesha sebenzisa phambili kwaye umva (cross) crimp isinxibelelanisi.