Beckhoff CB3064 Series - Serial COM1 Interface

Chapter: Connectors Serial Interface COM1
page 30 Beckhoff New Automation Technology CB3064-xxxx
4.10 Serial Interface COM1
The serial interface COM1 is made available via a 9-pin standard DSUB-connector (male). RS232
standard signals are provided.
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