1, optical modem yog lub teeb liab kho qhov muag rau hauv Ethernet cov khoom siv hluav taws xob teeb liab, optical modem yog Ameslikas hu ua modem, yog ib hom computer hardware, yog nyob rau hauv qhov kawg xa los ntawm kev hloov pauv ntawm cov teeb liab digital rau hauv analog teeb liab, thiab thaum kawg tau txais t. ...
Nyeem ntxiv