Rs-232/422/485 (Com1) - Advantech RSB-4760 User Manual

2.2.2.4. RS-232/422/485 (COM1)

RSB‐4411 provides one D‐Sub 9‐pin connector serial communication interface port.
The port can support RS‐232/422/485 mode communication.
Pin
1
2
3
4
5
6
7
8
9
Description
N/C RS‐422 TX‐ RS‐485‐
COM 2_RXD RS‐422 TX+ RS‐485+
COM2_TXD RS‐422 RX+
N/C RS‐422 RX‐
GND
N/C
COM2_RTS
COM2_CTS
N/C
Figure 2.3 COM Port
13