[RC232] Are the RC1140 and RC1240 compatible No. They are not compatible. Last Update: August 8, 2017 July 7, 2017 2441 RC232 Q&A Related Knowledge Base Posts -[RC232] Have your heard of Modbus… do you have any experience..?[RC232] Is the RC11XXHP-RC232 series pin compatible with the low cost family RC11XX? Is there a possibility that the additional pads on the product PCB n31 to n 42, short or connect to a trace or via under the RC11XX module ?[RC232] How long does it connect to the network (makes connection)? Is it seconds or milliseconds?