RS232 focusses on the connection of DTE, data terminal equipment (computers, printers, etc.) with DCE, data communication equipment (modems).RS232 cables can use DB25 or DB9 connectors. DB25 connectors have provision for two RS232 connections, but the single connection DB9 is most commonly used. RS323 DB9 pinout 1 DCD Data carrier detect 2 RD Receive data [...]
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