D-Sub9 Connector For Com2, Rs-232 (Tx/Rx/Rts/ Cts) (Com1) - Advantech RSB-4210 Evaluation Kit User Manual

2.2.34 D-Sub9 Connector for COM2, RS-232 (TX/RX/RTS/
CTS) (COM1)
This COM port supports RS-232(TX/RX/RTS/CTS). The pin assignment is
shown as following.
Figure 2-39 D-Sub9 Connector for COM2, RS-232 (TX/RX/RTS/CTS)
Pin
1
3
5
7
9
Description Pin
N/C
COM2_TXD
GND
COM2_RTS
N/C
49
Description
2
COM2_RXD
4
N/C
6
N/C
8 COM2_CTS
RSB-4210 Evaluation Kit User Manual