Umgangatho olawulayo weemodyuli zeklasi VI yi-eia / tia 568b 2-1. Ezona parameters zibaluleke kakhulu kukulahlekelwa kokufaka, ilahleko yokubuyisela, i-crosstalk ekufutshane, njl.

Faka ilahleko: ngenxa yobukho be-impedance yeshaneli yothumelo, iya kwandisa ukuthotywa kwamacandelo aphezulu-frequency yesiginali njengoko isantya somqondiso sinyuka. I-attenuation ayihambelani kuphela kwi-frequency yesignali, kodwa inxulumene nomgama wothumelo. Njengoko ubude bukhula, unobumba
Ukuthotywa komqondiso kuyanda. Ilinganiswa ngobungakanani belahleko yomqondiso ecaleni kwendlela yothumelo kubude beyunithi, kwaye imele umlinganiselo wamandla omqondiso ukusuka kumthumeli womthombo ukuya kumamkeli.

Ilahleko yokubuyisela: ngenxa yokuguqulwa kokuphazamiseka kwimveliso, i-oscillation yendawo iya kwenzeka, okubangela ukubonakalisa umqondiso. Inxalenye yamandla ebonakaliswe kwi-transmitter iya kwenza ingxolo, ibangele ukuphazamiseka komqondiso kunye nokunciphisa ukusebenza kokuhanjiswa. Okufana ne-duplex kilo egcweleyo
I-Megagrid iyakwenza impazamo kwisignali ebonakalisiweyo yophawu olufunyenweyo, ibangele ukuguquguquka kwemiqondiso eluncedo kwaye ibangele ukubhideka. Amandla angaphantsi abonakaliswe athetha ukuba ukunyanzeliswa kwe-impedance yemigca esetyenziswe kwitshaneli kubhetele, isignali yokuhambisa iphelele ngakumbi, kwaye ingxolo encinci ikwisiteshi. i-echo
Ifomula yokubala yelahleko RL: ilahleko yokubuyisela = isignali egqithisiweyo ÷ isignali ebonakalisiweyo.
Kuyilo, indlela yokusombulula ukungaphumeleli kweparameter yokulahlekelwa kwembuyekezo kukuqinisekisa ukuhambelana ngokupheleleyo komgca we-impedance kunye nokusebenzisana neentlobo ezintandathu zeentambo kunye ne-100 ohm impedance.
Ngokomzekelo, umgama ongalinganiyo we-interlayer we-PCB, ukutshintshwa kwe-cross-section ye-transmission line copper conductor, kunye nokungahambi kakuhle phakathi kwee-conductors kwimodyuli kunye neentlobo ezintandathu ze-cable conductors ziya kubangela ukuba iiparitha zokulahlekelwa kwembuyekezo zitshintshe.

I-Crosstalk ekufutshane ekupheleni (elandelayo): elandelayo ibhekiselele ekudibaneni komqondiso phakathi kweperi enye yemigca kunye nenye iperi yemigca kwiperi yemigca yothumelo, oko kukuthi, xa isibini somgca sithumela umqondiso, umqondiso ofunyenwe kwesinye isibini esikufutshane somgca. Lo mqondiso we-crosstalk ubukhulu becala kungenxa yokuba kufutshane
Idityaniswe yi-capacitance okanye inductance.