[Hilo] H/W flow control (CTS and RTS signals)
Q1: Should CTS be active (low electrical level) as long as modem is ready to receive data?
Q2: What is the required value for RTS to have an answer from modem?
Answer: Please set RTS to active (low electrical level).
Please also activate hardware flow control by “AT&K3” and save it by “AT&W”.
Q3: Can we constantly set RTS to required value in case required or should we signal each time before transmission?
Answer: You can constantly set RTS to active.
But before each transmission, it’s recommended to check if RTS is active or not in case the status has been changed by some unexpected events.