We have a customer with Digi C/X and a couple of C/Con units, one local and one remote over X21 connection. The connection works just fine, except that after a reboot the remote C/Con unit shows "E0" on the display and does not start the user terminals.
The main issue is that, for historical reasons, the C/Con unit is located in what is now a private apartment, so every time they reboot the system, they have to get the tenant to open up and restart the box.
I cannot find anything in the documentation about "E0" (which I guess could be "ED" but I doubt it) so I wondered if anyone has any thoughts? We've had the hardware maintenance people swap the C/Con, I believe they've done that more than once.