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Ack Button
6.3
Hold the Ack button for 3 seconds to disable remote access to the unit, the status LED will turn Red. This is
useful while on-site, so that unit settings cannot be changed while you are working. Disabling remote access also
means you cannot change the state of control relays or reboot the system. To Restore access, hold Ack button
again for 3 seconds, the status LED will turn green.