Do Command's Power Supplies have a Fire Alarm Link?

Do Command Access Power Supplies have the ability to be tied into the fire alarm system?

Yes. All Command Access power supplies can be tied into the fire alarm system. Most models have a dedicated closed FA Link terminal to land the closed loop wires from the fire alam system.  

For models without the FA Link, simply wire the dry contact input signal wires through the fire alarm closed loop wires.