Operating Controls.
1 SET Button (K1) - Confirm set and Reversing sensitivity.
2 CODE Button (K2) - Transmitter code set.
3 UP Button (K3) - Limit mode set.
4 DOWN Button (K4) - Limit mode set
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Circuit Board Connections.
5 Coupling for connecting the backup battery.
6 Coupling for connecting the motor.
7 Coupling for the power transformer.
8 Terminal for connecting of power input, run lamp and transformer.
9 Terminal connector to the control board.
10 Terminal connections for photo beam and push button.
PB = Push button, GND = Common & Neg., PE = Beams, +24 = 24VDC.