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COM

Description of serial port/CAN port

COM1 & COM2 support the ​RS485 protocol, while COM3 & COM4 support the ​RS232 protocol.
All serial ports are by default assigned to the ​real-time domain​ and currently ​do not support virtualization.

COM1、COM2、COM3、COM4 PIN Assignments
引脚 RS-232 RS-485
Signal Name Signal Name
1 DCD DATA-
2 RxD DATA+
3 TxD NC
4 DTR NC
5 GND GND
6 DSR NC
7 RST NC
8 CTS NC
9 RI NC
Last modified: 2025-06-16