How do you wire 2 Pyronix DeltaBell X external sounders into a ADE / Honeywell Optima Compact Panel 8EP396A. The External Sounder only shows how to wire one.
The tamper return of first unit is connected to the 0v of the second unit ,the return of the second unit to tamper return in the panel , all other connections are parallel
Also recommend putting the jumper of one of the bell boxes to scb setting, this means when they are triggered one will be powered by the internal battery. There is a possibility otherwise both bellboxes pulling to much power and popping a fuse.
No but I have seen it needs to be but also found that someone had cut the wire while putting a carpet in so had to find another wire to feed the live to it