Hello All,?
This is the first I have ever heard of anything like this.?
We have a CP3 processor controlling a small restaurant in a casino. The fire shunt is a N/O relay, which closes when the fire alarm goes off. We have this relay tied into I/O Port 1 on the CP3 which shuts the A/V system down when it is activated. I have done this quite a few times and never had any issues in the past. This morning we got a call from the Fire Alarm company saying there is a ground fault on the Fire system, as soon as they remove it from the CP3 it goes away.?
Has anyone ever run into this before?
Thanks
Steven
