BDE-M 4 Position Key Switch
Video showing how to connect and set up a 4 position and 3 position key switch to the record STA 20 operator, change functions of the door and quickly and simply do a soft reset.
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Video showing how to connect and set up a 4 position and 3 position key switch to the record STA 20 operator, change functions of the door and quickly and simply do a soft reset.
