[RC232] I would like to know how to use the pins N°27 and 28 on the RC2500HP Pin 27 and 28 must be left open. Last Update: August 8, 2017 December 20, 2016 2152 RC232 Q&A Related Knowledge Base Posts -[RC232] Can you please confirm the width of the PCB trace from the RF pin of the RC1140-RC232 to the copper pad we use to connect a wire antenna in order to achieve 50 ohms Z0? We’ve also done the layout so the power plane has a cutout below the microstrip.[RC232] For a packet size of 24 Bytes, could you provide an estimate of the ‘on air’ time at data rates of 50 and 100 Kpbs?[RC232] Designed for EX compliance. What does it mean?