I am replacing an existing SX-50 PBX with a new SX-200ICP AX controller, just about everything is working as I would expect but I don't really understand the Night Bells and the tech handbook is less than clear on it. I am very familiar with the SX-200 and know the Night Bells work differently in the 200 than the 50, but on the AX controller there are no relays, so once you program a PLID as a Night Bell, does that ONS port become a relay or does it actually present ringing voltage when activated?
