Ulwazi

I-fiber optical yitshaneli eneentambo zokuhambisa imiqondiso ye-optical. Sibiza izibonakaliso zombane ezingafunekiyo kwitshaneli "ingxolo Ingxolo kwinkqubo yonxibelelwano igxininiswe kwisignali. Xa kungekho mqondiso wothumelo, kukho ingxolo kwindlela yonxibelelwano. &#...

Ijelo sisixhobo sonxibelelwano esidibanisa isiphelo sothumelo kunye nesiphelo sokufumana, kwaye umsebenzi walo kukuhambisa imiqondiso ukusuka kwisiphelo sothumelo ukuya kwisiphelo sokufumana. Ngokwamajelo osasazo ahlukeneyo, amajelo anokwahlulwa abe ngamacandelo amabini: itshaneli ezingenazingcingo kunye neengcingo ...

Kweli nqaku ndiza kuthetha ngeNkqubo yoNxibelelwano iModeli kwiinkcukacha zibandakanya iinxalenye zabo ze-5, (1) ikhowudi yomthombo kunye ne-decoding, (2) i-Encoding kunye ne-decoding of channels, (3) i-Encryption kunye ne-decryption, (4) i-modulation ye-Digital kunye ukuthotywa, (5) Ungqamaniso. Masingene nzulu ̷...

1. Ukuhlelwa kweshishini loNxibelelwano Ngokweentlobo ezahlukeneyo zeenkonzo zonxibelelwano, iinkqubo zonxibelelwano zinokwahlulwa zibe ziinkqubo zonxibelelwano ngetelegraph, iinkqubo zonxibelelwano ngomnxeba, iinkqubo zonxibelelwano lwedatha, kunye neenkqubo zonxibelelwano lwemifanekiso. Ngenxa yokuba unxibelelwano lomnxeba...

Zombini umqondiso kunye nengxolo kunxibelelwano zinokuthathwa njengeenkqubo ezizenzekelayo ezihluka ngexesha. Inkqubo engacwangciswanga ineempawu zokuguquguquka okungahleliwe kunye nomsebenzi wexesha, kwaye inokuchazwa kwiimbono ezimbini ezahlukeneyo kodwa ezisondeleleneyo: ① inkqubo engacwangciswanga yingqokelela ye...

Indlela yokunxibelelana yindlela abathi abantu ababini abathetha omnye nomnye basebenzisane okanye bathumele imiyalezo. 1. I-Simplex, i-half-duplex kunye ne-full-duplex yonxibelelwano Kunxibelelwano lwe-point-to-point, ngokuhambelana nolwalathiso kunye nexesha lobudlelwane bokuthunyelwa komyalezo, indlela yokunxibelelana c...