Kyocera FS-600 manual TXD Transmit Data Pin, RXD Receive Data Pin, RTS Request To Send Pin

Serial (RS-232C/RS-422A) Interface (Option)

TXD – Transmit Data – (Pin 2)

This output carries asynchronous data sent by the printer to the computer. It is used mainly in handshaking protocols.

RXD – Receive Data – (Pin 3)

This input carries serial asynchronous data sent by the computer to the printer.

RTS – Request To Send – (Pin 4)

This output is always held high (above 3 volts).

CTS – Clear To Send – (Pin 5)

DSR – Data Set Ready – (Pin 6)

Unused.

SG – Signal Ground – (Pin 7)

All signals can transmit between the printer and the host computer to send each signals with a signal ground.

DTR – Data Terminal Ready – (Pin 20)

This output is used as a buffer nearly-full handshake line. It is held high (above 3 volts) when the buffer can accept more data.

RS-232C Interface Voltage Levels

The voltage levels of the interface signals conform to EIA RS-232C specifications. SPACE is from 3 volts to 15 volts. MARK is from –3 volts to –15 volts. Voltages between –3 volts and 3 volts are undefined.

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