Imigaqo yoYilo oluPhindayo kunye nendima yabo kuThungelwano loNxibelelwano

Umntu ophindayo sisixhobo esisisiseko nesibalulekileyo kuthungelwano lonxibelelwano. Owona msebenzi wayo uphambili kukuhlaziya kunye nokwandisa imiqondiso, ngaloo ndlela yandisa umgama wothumelo lomqondiso kunye nokuqinisekisa imfezeko yedatha kunye nokuthembeka ngexesha elide{1}}lothumelo lomgama. Imigaqo yoyilo yokuphinda isekwe kwimbuyekezo yokuthomalalisa umqondiso kunye nokuthomalalisa ingxolo, kugxininiso olungundoqo kukubuyisela amandla omqondiso wokuqala kunye nomgangatho ngeendlela zombane okanye zokukhanya.

Kwiinkqubo zonxibelelwano, njengoko imiqondiso isasazeka ngemithombo yeendaba zothumelo (ezinje ngeentambo zobhedu, iintambo zokukhanya, okanye iitshaneli ezingenazingcingo), ngokuthe ngcembe ziba buthathaka ngenxa yokuxhathisa okuphakathi, ukuphazamiseka kombane, okanye ukuthomalalisa kwendalo. Xa isignali ithomalalisa ukuya kuthi ga kwinqanaba elithile, isiphelo sokufumana sinokungakwazi ukucacisa ngokuchanekileyo ulwazi, okukhokelela kwiimpazamo zonxibelelwano okanye ukuphazamiseka. Abaphindaphindayo bayoyisa ilahleko yothumelo ngokubona amandla omqondiso wegalelo kwaye bayandise ngokusebenzisa iisekethe zokukhulisa okanye itekhnoloji yokuguqula i-optoelectronic. Kwiimpawu zombane, abaphindayo basebenzisa i-amplifiers ukunyusa i-voltage okanye yangoku; kwimiqondiso ye-optical, i-photodiodes isetyenziselwa ukuguqula umqondiso we-optical ibe ngumqondiso wombane, othi emva koko ukhuliswe kwaye uhlaziywe njengomqondiso we-optical for output.

Uyilo oluphindayo lufuna ukuqwalaselwa kwezinto ezininzi eziphambili, kubandakanya i-bandwidth, i-latency, kunye nokunciphisa ingxolo. Ngenxa yokuba abaphindaphindayo baphinda bavelise imiqondiso ngaphandle kokuhlalutya umxholo wedatha, basebenza kumaleko womzimba wemodeli ye-OSI kwaye bayasebenza kwiiprothokholi ezahlukeneyo zonxibelelwano. Nangona kunjalo, abaphindayo abanako ukwahlula imiqondiso efanelekileyo kwingxolo. Ukuba uphazamiseko olubalulekileyo lukhona kuthungelwano, lunokwandisa ingxolo, luchaphazela umgangatho wonxibelelwano. Ke ngoko, kuthungelwano oluphezulu{4}}langoku olukhawulezayo, abaphindayo badla ngokutshintshwa zizixhobo ezikumgangatho ophezulu (ezifana nezitshixo okanye i-fiber amplifiers). Nangona kunjalo, basenosetyenziso olubalulekileyo kwiimeko ezithile, ezifana{6}}nonxibelelwano olunentambo ezide okanye ulwandiso olulula lwenethiwekhi.

Ngamafutshane, imigaqo yoyilo lwabaphindayo ibandakanya ingqiqo esisiseko yetekhnoloji yokucwangcisa imiqondiso. Baqinisekisa uzinzo lonxibelelwano ngokuhlaziya umqondiso kunye nokwandiswa, okubenza babe yinxalenye ebalulekileyo yeziseko zonxibelelwano zanamhlanje.