Filter
Top Products
Installation • 23
COM4 RS-232/422/485 Serial Port Connectors (14-pins Pin-Header): CN14
Pin # Assignment Pin # Assignment
1 DCD 2 RXD
3 TXD 4 DTR
5 Ground 6 DSR
7 RTS 8 CTS
9 RI 10 Ground
11 TXD+ 12 TXD-
13 RXD+ 14 RXD-
y COM4 Figure:
Note: How to connect a RS485 device with the COM port ribbon cable?
Our Industrial Board encloses a COM port ribbon cable for internal connection.
RS422/485 device must connect to downside D-Sub with 5-pin cable and signal
indication as below.
1
13
14
2
5
9
1
6
RS-422/485:
1: TXD-
2: TXD+
3: RXD-
4: RXD+
5: GND
For RS-422/485 Connector
For RS-232 Connector