Chapter:
Connectors
Serial Interfaces COM1 and COM2
page 34
Beckhoff New Automation Technology
CB3053
4.15 Serial Interfaces COM1 and COM2
The CB3053 offers two serial interfaces COM1 and COM2, which are made available as 2x5pin connectors
(JST B10B-PHDSSLFSN, mating connector: PHDR-10VS). On some board variants COM1 is being used
internally so that these boards only have COM2 externally available. Signals default to RS232.
The port address and the interrupt are set via the BIOS setup.
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
