
Chapter: Connectors Serial Interface COM1
page 28 Beckhoff New Automation Technology CB3056
3.13 Serial Interface COM1
The serial interface COM1 is made available via a 9-pin standard DSUB-connector (male, e.g. Foxconn
DM10152-H5W3-4F). Signal level is RS232.
The port address and the interrupt are set via the BIOS setup.
Pinout serial port (DSUB connector):
Description Name Pin Name Description
data carrier detect DCD 1 6 DSR data set ready
receive data RXD 2 7 RTS request to send
transmit data TXD 3 8 CTS clear to send
data terminal ready DTR 4 9 RI ring indicator
ground GND 5
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