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We getting a dry contact NC from the fire alarm relay,You're going to need to provide ALOT more information if you want help with this.... like what signals you have, what state those signals can be in, what voltage levels etc. and what you want to happen when certain signals take on the various states.
Yes I can but how can I connect those interfaces?Could you not just install interfaces off the fire alarm that intercepts the supply to the mag/strike lock?