tis 2013-09-17 klockan 07:11 +0000 skrev joem: > The power drain is 10mA - about same as having an extra LED on. > It should be enough to kill any voltages that are outstanding > if its being fed from 3 pins of RS232 interface. It's only RX pin that is an issue from what I can tell, so just 2 pins. Regards Henrik