Hello,
My CR350 datalogger and instruments are charged by a Renogy solar panel and charger. I think the standard Renogy Wanderer charger module has an RS232 port (RJ12, 6-pin conection) with Tx/Rx on two of the pins.
I'd like to communicate with the Renogy controller using COM3 Tx/Rx terminals on the CR350 logger; however, I am concerned that the voltage on the Renogy Tx will be greater than what the CR350 can handle.
Is this a legitimate concern? If so, maybe the DB9 connection would be better to handle higher voltage.
Thank you!
If the RS-232 connection of the Renogy complies with RS-232, COM3 can handle the voltages. COM3 was designed to handle standard RS-232 voltages.