V.24/V.35

Standards laid down by the CCITT for interfacing a digital device to a PTTsupplied modem. V.24 is also used as an interface standard for connecting a peripheral device, such as a visual display unit or a printer, to a computer.; 國際電話電報咨詢委員會(CCITT)為數字設備與郵電局(PTT)提供的調制解調器接口而制 訂的標準。V.24還用作將外圍設備(如顯示終端、打印機等)連接到計算機的接口標準。