14 com1 and com2 – BECKHOFF CB4055 User Manual
Page 32
Chapter: Connectors
COM1 and COM2
page 32
Beckhoff New Automation Technology CB4055
3.14 COM1 and COM2
The serial interfaces COM1 and COM2 are provided via a 2x5pin connector (FCI 98424-G52-10LF,
mating connector e.g. FCI 90311-010LF).
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
10
VCC
5 volt supply
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