CONCH HM Series - Serial Communication Port Definitions; COM1 Port Pinout and Configuration

4 Pin Definition of Communication Serial Ports
3
HM Series Connection Manual
4. Pin Definition of Communication
Serial Ports
The standard outfit of this product series has 3 serial communication pots, provided
with 3 types of communication interface: RS232/RS485/RS422, which make it
convenient to link different devices. Besides, the 3 ports can be enabled for
communication at the same time to lower the burden of PLC and improve the
system communication performance as a whole.
4.1. COM1
The pin definition of COM1 can support communication formats of RS232 &
RS485.
P6P1
9P
(Female
Adapter)
Pin
Function
1
RS485+
2
RS232 RXD
3
RS232 TXD
4
N/A
5
Signal Ground
6
RS485-
7
RS232 RTS
8
RS232 CTS
9
+5V Output ( Max. 100mA )