Coaxial chingwe ndi mtundu wa zida zoyankhulirana, zomwe zimagwiritsidwa ntchito kwambiri pamakina olumikizirana opanda zingwe, njira yolumikizirana ndi data ndi njira yolumikizirana yamawu.
Ubwino wa mankhwalawa ndi wabwino kwambiri, wogwirizana ndi kufotokozera kwa wogulitsa.Ndizoposa zomwe timayembekezera. Tikuyembekezera mgwirizano wotsatira.