Ezi zixhasi ezisezantsi zifanelekile ukusetyenziswa kwezixhobo zokunxibelelana
I-T1 kunye ne-T3 ziintlobo ezimbini eziqhelekileyo zokusetyenziswa kwedatha yedijithali ezisetyenziselwa ukuthungelwano. Ekuqaleni phuhliswe yi-AT & T kuma-1960s ukuxhasa inkonzo yocingo, imizila ye-T1 kunye nemigca ye-T3 kamva yaba yinto ekhethekileyo yokuxhasa inkonzo ye-intanethi ye-intanethi.
T-Carrier kunye ne-E-Carrier
I-AT & T yenze i-T-carrier yayo inkqubo yokuvumela ukuqoqa iqela ngalinye ngamashishini amakhulu. Umgca we-T2, umzekelo, unemiqolo emine ye-T1 ehlangene kunye.
Ngokufanayo, umgca we-T3 unemizila engama-28 ye-T1. Inkqubo ichazwe ngamanqanaba amahlanu-T1 ngeT5-njengoko kuboniswe kwitheyibhile elingezantsi.
| Igama | Ubungakanani (izinga eliphezulu lwedatha) | Iimitha ezininzi ze-T1 |
|---|---|---|
| T1 | 1.544 Mbps | 1 |
| T2 | 6.312 Mbps | 4 |
| T3 | 44.736 Mbps | 28 |
| T4 | 274.176 Mbps | 168 |
| T5 | 400.352 Mbps | 250 |
Abanye abantu basebenzisa igama elithi "DS1" ukubhekisela ku-T1, "i-DS2" ukubhekisela ku-T2, njalo njalo. Iintlobo ezimbini zesigama-magama zingasetyenziswa ngokungafaniyo kwiimeko ezininzi. Ngokomsebenzi, i-DSx ibhekisela kwisignali yedijithali esebenzayo kwimigca ye-Tx ehambelanayo, engaba yubhedu okanye i-fiber cabling. "I-DS0" ibhekisela kwisibonakaliso kwisiteshi esisodwa seT-carrier, esixhasa izinga eliphezulu le-64 Kbps . Akukho mgca weT0 ngokomzimba.
Ngoxa iintetho ze-T-carrier zithunyelwa kulo lonke elaseNyakatho Melika, iYurophu yamkela umgangatho ofanayo obizwa ngokuba ngu-E-carrier. Inkqubo ye-E yokuphatha ixhasa ingcamango efanayo ye-aggregation kodwa ngamanqanaba empawu ezibizwa ngokuba yi-E0 nge-E5 kunye namaqondo ahlukeneyo kumqondiso ngamnye.
Isevisi ye-intanethi yeNdawo
Abanye ababoneleli ngee-intanethi banikela imizila ye-T-carrier ukuba amashishini angayisebenzisa njengamadibaniselwano azinikezele kwezinye iiofisi ezihlukeneyo nakwi-intanethi. Amashishini asebenzisa iinkonzo ze-intanethi eziqeshwe ngokuqeshwe ngokuqhelekileyo ukunikela nge-T1, T3 okanye amazinga angama-T3 okwenziwa komsebenzi ngenxa yokuba ezo zininzi zikhetho.
Okungakumbi malunga neT1 iMine kunye neT3 Lines
Abanikazi bamashishini amancinci, izakhiwo zezindlu, kunye namahhotela ayenokuthembela kwimigca ye-T1 njengendlela yabo yokuqala yokufikelela kwi-intanethi ngaphambi kokuba i- DSL ye -shishini ibandakanyeke . I-T1 kunye ne-T3 eqeshwe ngemigca yinkcazo ephezulu-shishini yexabiso elingafanelekanga kubasebenzisi bendawo yokuhlala, ingakumbi ngoku ngoku kukhethwa ezinye iinqunto eziphakamileyo ezifumaneka kwiinini. Umgca we-T1 awunawo amandla okwaneleyo ukuxhasa imfuno ebalulekileyo yokusetyenziswa kwe-intanethi namhlanje.
Ngaphandle kokusetyenziswa kwi-intanethi yexesha elide, iifayile zeT3 zisetyenziselwa ukwakha umnqweno womnatha wezoshishino kwikomkhulu lawo. Iindleko ze-T3 zeendleko ziphakamileyo ngokuthe ngqo kunezo zemizila ye-T1. Okuthiwa "i-fractional T3" ilayini avumela ababhalisile ukuba bakhokhe inani lencinci yeziteshi kunelayini epheleleyo yeT3, ukunciphisa iindleko zokuqeshisa.