[RC232] Are the modules full duplex ? Module is half duplex. Sent and receive but not at the same time. Last Update: August 8, 2017 February 3, 2017 2385 RC232 Q&A Related Knowledge Base Posts -[RC232] Designed for EX compliance. What does it mean?[RC232] The label on the module reads RC1180 2009 17 2.10 is that a latest one?[RC232] When there is message collision, will the CRC check fail? How do we enable CRC checking?