Hi Ikoma,
Yes the resistor that you circle is the termination resistor. RS-485 uses 120 ohm differential termination resistors at either end of the bus to ensure communication. Here is are a few links that may help your customer understand some of the…
Hi Vaibhav,
Do you have any idea which portion of the chip is being damaged? Typically the most common points of failure are the RS-485 signal pins, since these interface to external ports which may allow for over-stresses like ESD events or short…
