Question about I-Star PSU ISTAR|TC-550PA RETAIL (TC550PA) Power Supply
On most fire alarm panels there are normally open and normally closed relays that will change state in the event of a fire. The negative power line can be ran through these relays to allow the maglock to be powered down in the event of a fire. The relay on the fire panel may need to be programmed to do this or it may come programmed by default which is usually the case. Hope this helps.
Posted on Jan 31, 2010
Your iStar panel is for the door access control system. On many of these systems there is an input for fire door releasing functions. If so, you would just need a set of dry alarm contacts from the fire system to shunt the door power.
Otherwise, the solution above will work.
Posted on Jan 24, 2015
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Posted on Jan 02, 2017
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