- Warning device option board with red/green light box for use only with L2 and L3 Logic Control Boards. Signals if door is moving or stationary. Other 120V or 24V signal devices can be attached. Signals red prior to door when CPS-LN4 or CPS-L timer function is used
- NOTE: Activates down mid-stop. Down mid-stop allows door to stop at a mid-point from open position.
- WARNING: It is strongly recommended that audible/visible warning devices be included in every operator installation.