Serial Ports Com2 To Com4 - Beckhoff CB1064 Series Manual

Chapter: Connectors

3.4.2 Serial ports COM2 to COM4

The three serial ports COM2 to COM4 are made available via a 2x5 pin connector each. Signals are
RS232.
The port address and the interrupt are set via the BIOS setup.
2x5pin connector:
Manufacturer
FCI
Pinout COM connector:
Description
data carrier detect
receive data
transmit data
data terminal ready
ground
page 36
Description
75869-301LF
Name Pin
DCD 1
RXD 3
TXD 5
DTR 7
GND 9
Name
2 DSR
4 RTS
6 CTS
8 RI
10 VCC
Beckhoff New Automation Technology CB1064-xxxx
Internal Connectors
Mating connector
e.g. 71600-610LF
Description
data set ready
request to send
clear to send
ring indicator
5 volt supply