Data on RS-232 is normally sent using signal lines, which have the following meanings:
EPSON SERIAL CABLE PINOUT DB9 TO DB9 SERIAL
There are two types of devices involved in serial communication: DTE (Data Terminal Equipment) - a controller of serial connection, computer that fits a male serial port connector, and DCE (Data Circuit-terminating Equipment) - a modem with a female COM port connector.
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That means, developers of complex serial communication systems will be able to manage signal lines pinout either by using already existing standard pinout presets or by creating their own COM port pinout presets.
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Virtual COM Port Emulator is a professional utility that allows setting custom serial port pinouts. Depending on the type of serial port, the form of a serial connector will differ.
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When it’s required to connect two serial peripherals directly (without using a modem or any other Data Communications Equipment) users rely on a null modem cable.Ī serial communication standard is widely used for long-distance connections or data exchange in computer networks where a parallel connection is inefficient due to synchronization issues and the cost of the cable.Īs is known, serial devices exchange information via COM ports connected by a serial cable. In the field of telecommunications, the term ‘serial connection’ means the process of sending data via a communication channel or a computer bus serially, one bit at a time.