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To Wire a pair of Photo cell to a Nice (Brand) Motor you need 4 Wire core from the Motor to the Photo cell unit (RX) and 2 core wire to the receiving side unit (TX).
In this example we are using our own colours with the wire.
RED
BLACK
BLUE
YELLOW
First Turn off all power including disconnecting the Backup Battery if fitted to the Motor.
Use the RED colour wire and connect from the positive terminal 1 on the Road 400 to positive terminal on the both photo cells.
Use the BLACK colour wire connect from the minus terminal 4 on the Road 400 to the minus terminal on both photo cells.
Use the Blue colour wire from terminal 1 (which is also called the common terminal) to the RX photo cell unit Normal Closed (NC).
Use the Yellow colour wire from terminal 5 to the RX photo cell to COM terminal.
8 7 6 5 4 3 2 1
RX
_
+
_
+
NC
COM
NO
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