16 Feb
2021
16 Feb
'21
10:38 a.m.
When I was working in MD, we had a customer with a long RS-232 run between buildings. I was there several times to replace the 1488 and 1489 chips in the remote printer. They never did do anything about it.
As long as the ICs are in sockets, buy some spares and keep them on hand I guess. Technically ethernet has magnetics, it's isolated. Most likely it's the transformer module that gets blown out. But I have never tried to fix one. The transformers keep the ground loops from happening I'd imagine. - Ethan