[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 2593 RC232 Q&A Related Knowledge Base Posts -[RC232] What should I check to confirmt that my module is correct connected[RC232] I’ve noticed the label FCC pending on the RC1190HP. Could you please confirm is FCC approved?[RC232] “Our company currently use the modules 1280HP of 500mW. We need to amplify more, is there the possibility of more than 500mW with an external amplifier? “