I have a few Mikrotik hEX Routers plugged into our network and I am getting concerned for when external personnel comes to perform maintenance, specifically I am worried if someone accidentally plugs an RJ11 cable from our FXS (50v) straight into one of the RJ45 ports of one of our hEX Routers.
Does the hEX have an overvoltage protection for the ethernet ports or do I have to have some kind of physical separation to prevent something like this from happening?
Thanks and regards.