Le migqa esheshayo isetshenziselwa ukusetshenziswa kwenethiwekhi yebhizinisi
I-T1 ne-T3 yizinhlobo ezimbili ezijwayelekile zamasethingi okudlulisa idatha yedatha asetshenziselwa ukuxhumana. Ekuqaleni lakhiwa yi-AT & T ngawo-1960 ukuxhasa isevisi yocingo, imigqa ye-T1 kanye nemigqa ye-T3 kamuva yaba yindlela ethandwayo yokusekela insizakalo ye-intanethi yebhizinisi.
T-Carrier ne-E-Carrier
I-AT & T yenzelwe uhlelo lwayo lwe-T ukuvumela ukuqoqwa kweziteshi ngabanye ndawonye ngamayunithi amakhulu. Umzila we-T2, isibonelo, uqukethe imigqa emine ye-T1 ehlangene ndawonye.
Ngokufanayo, umugqa we-T3 uqukethe imigqa engu-28 T1. Uhlelo luchaza amazinga amahlanu-T1 nge-T5-njengoba kuboniswe etafuleni elingezansi.
| Igama | Amandla (isilinganiso esiphezulu sedatha) | I-multiply 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, njalonjalo. Izinhlobo ezimbili zamagama angasetshenziswa ngezikhathi eziningi ezimweni eziningi. Ngokuyisisekelo, i-DSx ibhekisela kwisignali yedijithali egijima emigqeni ehambisanayo ye-Tx, engaba yikhusi noma i-fiber cabling. "I-DS0" ibhekisela kwisignali kumzila owodwa womsebenzisi we-T, osekela izinga eliphezulu le-64 Kbps . Ayikho umugqa we-T0 ngokomzimba.
Ngenkathi ukuxhumana kweT-carrier kwathunyelwa eNyakatho Melika yonke, iYurophu yamukela izinga elifanayo elibizwa nge-E-carrier. I-E-carrier system isekela umqondo ofanayo we-aggregation kodwa ngamazinga wesignali ebizwa nge-E0 ngokusebenzisa i-E5 namazinga ahlukene wesignali ngayinye.
Isevisi ye-Inthanethi ye-Line
Abanye abahlinzeki be-intanethi banikeza imigqa ye-T-carrier yamabhizinisi angayisebenzisa njengamaxhumo azinikezele kwamanye amahhovisi ahlukaniswe ngokwezindawo kanye ne-intanethi. Amabhizinisi asebenzisa izinsizakalo ze-intanethi eziqashiwe ngokujwayelekile ukuze banikeze ama-T1, T3 noma ama-T3 amazinga wokusebenza ngoba lawo angakhetha kakhulu.
Okuningi mayelana ne-T1 Lines kanye ne-T3 Lines
Abanikazi bamabhizinisi amancane, izakhiwo zefulethini, kanye namahhotela ayencike emigqeni ye-T1 njengendlela yabo eyinhloko yokungena kwe-intanethi ngaphambi kwe- DSL yezamabhizinisi. I-T1 kanye ne-T3 imigqa eqashiswayo yizixazululo zebhizinisi eziphezulu kakhulu ezingafaneleki kubasebenzisi bokuhlala, ikakhulukazi manje ukuthi ezinye izinketho eziningi ezisheshayo zitholakale kubanikazi bendawo. Umzila we-T1 awunawo umthamo okwanele wokusekela ukufunwa okuphawulekayo kokusetshenziswa kwe-inthanethi namuhla.
Ngaphandle kokuba isetshenziselwe ukuhamba nge-intanethi ye-intanethi, imigqa ye-T3 isetshenziselwa ukwakha ingqalasizinda yenethiwekhi yebhizinisi endlunkulu yayo. Izindleko ze-T3 zamanani ziphakeme ngokulingana nalezo zomugqa we-T1. Amakholi okuthiwa "ama-fractional T3" avumela ababhalisile ukuba bakhokhele inani elincane leziteshi kunomugqa ogcwele we-T3, ukwehlisa izindleko zokuqashisa cishe.