Figure 2.5 Com Port Pin Header - Advantech RSB-4221 User Manual

2.2.2.5 UART2 and UART3 COM port Pin Connector (COM2_3)
RSB-4221 provides a 2X3 pin connector, which contains 2 two-wire COM ports
(RS232 level).
Pin
1
2
3
4
5
6
2.2.2.6 UART4 and UART5 COM port Pin Connector (COM4_5)
RSB-4221 provides a 2X3 pin connector, which contains 2 two-wire COM ports
(RS232 level).
Pin
1
2
3
4
5
6
2.2.2.7 CAN PORT Pin Connector (CN16)
RSB-4221 provides a1X4 pin connector for CAN port.
Pin
1
2
3
4
Description
COM2_TX
COM3_TX
COM2_RX
COM3_RX
GND
GND

Figure 2.5 COM port pin header

Description
COM4_TX
COM5_TX
COM4_RX
COM5_RX
GND
GND
Figure 2.6 COM port pin header
Description
GND
CAN1_D+
CAN1_D-
GND
13 RSB-4221 User Manual