- 數(shù)據(jù)載波檢測(cè)
- 數(shù)據(jù)載體探測(cè)
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data carrier detect中文什么意思
百科釋義
Data Carrier Detect, abbreviated as DCD, or alternately Carrier Detect abbreviated as CD, is a control signal present inside an RS-232 serial communications cable that goes between a computer and another device, such as a modem. This signal is a simple "high/low" status bit that is sent "from DCE to DTE", or in a typical scenario, from the peripheral to the computer.
詳細(xì)百科解釋