Dortronics 4800 series intelligent door interlock controllers feature 12 field-assignable inputs and 17 configurable relay outputs for various input/output configuration and added flexibility. The new auxiliary relay lock output accessory adds to this flexibility with up to five factory-installable accessory terminal blocks. When form C contacts are required for additional functionality, the auxiliary terminal boards can be specified on the purchase order and installed prior to shipment. Other features include a watchdog circuit; LED indicators; and voltage spike and surge protection.
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