[AFMUG] Mixing +48v and -48v

[Jason McKemie]

I'm wanting to power a mikrotik switch off of a -48v rectifier setup that
already has some -48v equipment running on it. I'll be using a Meanwell
DC/DC converter, which appears to not bond anything with the ground. The
mikrotik, however, does bond the negative with ground. Do I need to keep
the mikrotik's ground isolated from the main ground? Or is the DC/DC
converter going to keep things from going boom?