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What option boards do I need to use an auto operator with EL devices and a PS914?

An optional board such as 900-4RL (AO operation) board is not needed with LCN auto operators and EL electric exit devices. The LCN auto operators have the ability to sequence with the power supply operating the EL's to allow devices to retract the latchbolt/vertical rods before swinging doors open. 

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