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Installation, Configuration and Operation of Hardware > Installation and Configuration of Control Devices > Installing the SR2 Receiver > SR2 Advanced Hardware Configuration >> Alarm Relay Operation
The SR2 has an on-board 12V relay which can be connected to a buzzer or beacon.
•The relay is normally held closed.
•It opens in the event of any alarm on the assigned Grids.
•DIP switch 3 sets which alarms will open the relay.