Uyini umehluko phakathi kwezintambo zenethiwekhi ye-Ethernet ukusuka eSigabeni 1 ukuya eSigabeni sesi-8?

Izintambo zesigaba 1: ikakhulukazi ezisetshenziselwa ukudluliswa kwezwi (Izinga loku-1 lalisetshenziselwa ikakhulukazi izintambo zocingo ngaphambi kweminyaka yawo-1980), ngokungafani nokudluliswa kwedatha.

Ikhebula Yesigaba II: imvamisa yokudlulisela engu-1MHZ, esetshenziselwa ukudluliswa kwezwi nokudluliswa kwedatha isilinganiso esiphezulu sokudlulisela esingu-4Mbps, esivame ukusetshenziswa kumanethiwekhi amathokheni amadala kusetshenziswa iphrothokholi yokucacisa ithokheni engu-4MBPS.

Izintambo zeSigaba 3: ikhebula elicaciswe kumazinga e-ANSI kanye ne-EIA/TIA568, imvamisa yokudlulisela yale khebula ngu-16MHz, esetshenziselwa ukudluliswa kwezwi kanye nokudluliswa kwedatha ngenani eliphezulu lokudlulisa elingu-10Mbps, ikakhulukazi ikhebula engu-10BASE--T.

Isigaba IV: Imvamisa yokudlulisela yalolu hlobo lwekhebula ngu-20MHz, esetshenziselwa ukudluliswa kwezwi nokudluliswa kwedatha ngezinga eliphezulu lokudlulisela ka-16Mbps, ikakhulukazi i-LAN esekelwe kumathokheni kanye ne-10BASE-T/100BASE-T.

Isigaba 5: Lolu hlobo lwekhebula lukhuphule ukuminyana okumazombezombe, insalela yekhwalithi ephezulu ebhantshini, izinga lokudlulisela elingu-100MHz, futhi esetshenziselwa ukudluliswa kwezwi nokudluliswa kwedatha ngenani eliphezulu lokudlulisela elingu-100Mbps, ikakhulukazi kumanethiwekhi angu-100BASE-T kanye ne-10BASE-T. Lena ikhebula elivame ukusetshenziswa kakhulu elithi Ethernet.

Isigaba Esiphezulu 5: Isigaba 5 Esiphezulu sinokuncipha okuphansi, i-crosstalk encane, futhi sinokuncipha okuphezulu ku-crosstalk ratio (ACR) kanye nesilinganiso somsindo kumsindo (StructuralReturn Ukulahlekelwa), ukubambezeleka kwesikhathi esincane, nokusebenza okuthuthuke kakhulu. Izintambo ze-Super Category 5 zisetshenziswa kakhulu ku-100 Gigabit/Gigabit Ethernet (1000Mbps).

Isigaba sesi-6 sekhebula: Imvamisa yokudlulisela yalolu hlobo lwekhebula ngu-1MHz ukuya ku-250MHz. Isistimu yekhebula yesigaba sesi-6 kufanele ibe nemajini enkudlwana ye-integrated attenuation crosstalk ratio (PS-ACR) ku-200MHz, ehlinzeka ngokuphindwe izikhathi ezingu-2 kunomkhawulokudonsa we-Super Category 5. Ukusebenza kokudlulisela kwekhebula kweSigaba 6 kuphezulu kakhulu kunezinga le-Super Category 5 futhi ifaneleka kakhulu izinhlelo zokusebenza ezinamazinga okudlulisela aphezulu kuno-1 Gbps.

Umehluko obalulekile phakathi kweSigaba 6 ne-Super 5 ukusebenza okuthuthukisiwe ngokuya nge-crosstalk nokulahlekelwa kwembuyiselo, okubaluleke kakhulu esizukulwaneni esisha se-full-duplex, izinhlelo zokusebenza zenethiwekhi enesivinini esikhulu. Izinga leSigaba 6 lisusa imodeli yesixhumanisi eyisisekelo, indinganiso yekhebula isebenzisa i-topology yenkanyezi, futhi ibanga lekhebula elidingekayo lithi: ubude besixhumanisi esingunaphakade abukwazi ukudlula u-90m, futhi ubude besiteshi abunakudlula u-100m.

Isigaba Esiphezulu 6: Ikhebula ye-Super Category 6 isengasebenza ngokujwayelekile ngaphezu kuka-40°C kumasistimu ekhebula asebenza kahle anamaza afinyelela kumkhawulokudonsa ongu-300MHz, futhi isengafinyelela inkomba yokusebenza engu-20°C eshiwo esigabeni sesi-6 esijwayelekile ku-50°C. Ukuyihlukanisa ezinhlelweni zekhebula ezijwayelekile zeSigaba 6, lolu hlobo lwekhebula olusebenza komkhawulokudonsa odlula kude Isigaba sesi-6 lubizwa ngokuthi i-Super Category 6. Isekela i-10 Gigabit Internet access (10 Gbps) idatha.

Isigaba sesi-7: Le ntambo uhlobo lwakamuva lwamapheya asontekile esigabeni se-ISO 7 / Class F standard, futhi yakhelwe ngokuyinhloko ukuhlalisa ukusetshenziswa nokuthuthukiswa kobuchwepheshe be-Gigabit Ethernet eyi-10. Kodwa-ke, akuseyona ipheya esontekile engavikelekile, kodwa isipheya esisontekile esivikelekile, ngakho-ke ingadlulisela okungenani i-500 MHz, okungaphezu kokuphindwe kabili izinga lokudlulisela lomugqa weSigaba 6, futhi izinga lokudlulisela lingafinyelela ku-10 Gbps.

Ikhebula yenethiwekhi yeSigaba 8: isizukulwane sakamuva sekhebula lenethiwekhi, ngokufanayo nezinhlobo eziyisikhombisa zentambo yenethiwekhi ivikelwe kabili (SFTP), inamapheya amabili ezintambo, isikrini esibanzi esingu-2000MHz esiphezulu esiphezulu, singasekela u-25 Gbps no-40 I-Gbps network cabling, kodwa ibanga layo eliphezulu lokudlulisela lingama-30m kuphela, ngakho ngokuvamile lisetshenziselwa amaseva esikhungo sedatha amabanga amafushane, amaswishi, amaphaneli okuchibiyela nokunye ukuxhumana kwemishini.

Endinganisweni ye-ISO / IEC-11801, ikhebula le-Cat8 Isigaba 8 ihlukaniswe ngeSigaba I kanye neSigaba II ngokwezinga lesiteshi, lapho uhlobo lwekhebula leSigaba I Cat8 Isigaba 8 kuyi-U/FTP ne-F/UTP, ebuyela emuva ehambisana nesixhumi esibonakalayo se-Cat5e, Cat6, Cat6a RJ45; Isigaba II Cat8 Isigaba 8 sokuvikela ikhebula uhlobo yi-F/FTP noma i-S/FTP, ebuyela emuva ehambisana ne-TERA. I-FTP, eya emuva ehambisana ne-TERA noma isixhumi esibonakalayo se-GG45.

Ikhebula elipheya elisontekile lingahlukaniswa kube ikhebula elisontekile elingavikelwe (I-UTP = IBHABHA ELIPHETHWE ENGASHIELDED ELIPHETHELWE) kanye nekhebula elisontekile elivikelwe (STP = IPHEYA ELIPHETHWE ELISHIELDED).

Okungaphandle ungqimba lwekhebula elisontekile elivikelekile ligoqwa nge-aluminium platinum ukunciphisa imisebe, kodwa aliyiqedi ngokuphelele imisebe. Ikhebula elisontekile elivikelekile libiza kakhulu futhi kunzima ukulifaka kunekhebula elisontekile elingavikelwe.

Unshielded ikhebula elisontekileinezinzuzo ezilandelayo: alikho ibhantshi elivikelayo, i-diameter encane, ukonga isikhala; isisindo esilula, ukugoba kulula, ukuyifaka kalula; i-inter-end crosstalk incishisiwe noma iqedwe; nge-flame retardant; enokuzimela futhi evumelana nezimo, ifanele izintambo ezihlanganisiwe ezihlelekile.