I have an APC smart UPS 3000 RM connected with a genuine APC smart ups cable.
I can dialog with the UPS properly trough the '/system serial-terminal serial0' ROS command.
However, when I am trying to add this UPS to ROS I have 'Couldn't add New UPS error - opening serial port failed: 2 9 (6)'
This UPS is properly managed when connected to a linux server with apcupsd.
I'm using a RB1100AH with ROS 5.20
I've seen other threads with people having issues with 5.20 with their UPS. Is it a bug and will the Smart UPS 3000 RM be properly managed in the next release, or should I forget using my router to monitor the UPS and delegate that to one of my server?