CB A
1234
9
Connecting Motors
To connect a Motor to the NXT, plug one end of a black wire 
to the Motor. Plug the other end into one of the output ports 
(A, B, C).
Connecting sensors
To connect a Sensor to the NXT, plug one end of a black wire 
into the Sensor. Plug the other end into one of the input ports 
(1, 2, 3, 4).
Downloading and uploading
The USB port and wireless Bluetooth connection are used for downloading 
and uploading data between your computer and the NXT.
If your computer has Bluetooth, you can download programs to the NXT 
without using the USB cable.
If your computer does not have Bluetooth, you must use the USB cable or 
buy a Bluetooth dongle for your computer. (Read more about the wireless 
Bluetooth connection on pages 34-43).
Connecting the NXT Technology
Technology
Note that ALL of the black 
6-wire cables can be used in 
both input and output ports, 
sensors and motors. Work 
sensors MUST be attached 
to the input ports (1-4) and 
motors MUST be attached to 
the output ports (A-C).