Ethernet na USB: description, manufa, da iri kayayyakin

Domin shigarwa na kwamfuta networks amfani Ethernet musamman na USB (Lan-USB). Akwai da dama na asali iri wayoyi: Twisted biyu, coaxial, kuma fiber na gani. Nau'i na farko da aka dauke su da mafi arha, kuma mafi sauki, don haka aka yi amfani da fiye da kashi 90 cikin dari na dukkan gida cibiyoyin sadarwa.

Iri Twisted biyu

Wannan Ethernet na USB Shi ne ya fi kowa, kuma shahara. Ya kunshi takwas jan conductors cewa an yi yardatayya da lauye. A rufi kayan amfani ne m PVC. Akwai da yawa iri Twisted biyu, iri dabam-dabam daga juna irin kariya, ko rashin daga gare ta. M aiki zai iya yi aluminum tsare nannade a kusa da wayoyi, ko jan Amarya kowane biyu. Bugu da kari, akwai hada siffofin kariya. Ethernet are na USB mafi resistant zuwa waje tsangwama ba, amma, bi da bi, shi ne mafi darajar. Akwai ma da dama iri Twisted-biyu, wanda ana nuna ta wurin sa alamar "CA", wanda kayyade category na waya. Akwai bakwai jinsunan wannan siga. A mafi girma da category lambar, da girma da damar da na USB, watau yana amfani da mafi conductors. Saboda haka, bakwai category na Twisted biyu (karshe kwanan) ba ka damar aika da bayanai a gudu na 40 Gbit / s. Don samar da irin wannan gudun ba tare da murdiya sigina, kowane biyu na conductors a cikin USB dole ne halayyar impedance na 100 ohms.

Ethernet coaxial na USB

Wannan irin waya aka hada da wani shugaba da kuma allo da ciwon kowa axis na juyawa. A na USB qunshi wani shugaba, wani insulator, PVC daina kai hare hare, jan ko aluminum amarya. Yau, da irin wannan waya amfani da matsayin shugaba ga eriya. Local networks, shirya a coaxial igiyoyi, kusan babu wani. Mafi na kowa waya tare da halayyar impedance 50 ohms - kwamfuta cibiyar sadarwa - da kuma 77 ohms - don aika da wani talabijin sigina. Matsakaicin watsa bayanai iya aiki ne 10 Mbit / s. Bugu da kari, shi ne impractical, kamar yadda yake da wahala a gyara lalace yankunan, wanda baya kaiwa zuwa gagarumin hasarori.

Tantancewar fiber

Wadannan Ethernet igiyoyi halin low attenuation, ko da yada bayanai a tsawon nisa, ba su da tsangwama. Bugu da ƙari, na gani fiber yana da babban gudun translation. Don gyara karkashin review, da na USB bukatar musamman kayan aikin da kayan aiki, da kuma bukatar a haɗa shi da na kayan aiki. Wannan irin yana da wuya amfani domin gina hanyoyin sadarwa a cikin Apartment ko ofishin, saboda, ban da nagartaccen kayan aiki, shi yana da wajen babban farashi.

Ethernet-USB pinout

Standard hudu biyu Twisted biyu don gina gida networks crimped connector RJ-45 type. connection makirci yana da wadannan tsari: fari-kore, kore, da fari, orange, blue, da fari, blue, Orange, ruwan kasa da fari da kuma ruwan kasa da waya. Crimping makircinsu bambanta dangane da manufar a haɗa Lines, fasahar da kuma matsayin bayanai canja wuri. Wani lokacin amfani da gaba da baya (giciye) crimp haši.