Pioneer DJ CDJ-2000NXS2 Connection Manual page 5

Using the Multiplayers
as the TRAKTOR Series Controllers
Switch on all the units once the connections have been made. Then, follow the instructions below
to set up each multiplayer.
1
Press the [LINK] button on the multiplayer and then select [USB MIDI] for the [CONTROL
MODE]. Press the rotary selector to fix it. The multiplayer is now recognized by TRAKTOR
series.
2 [Turn SELECTOR to choose TRAKTOR deck] is displayed on the multiplayer's main unit
display. Turn the rotary selector to select the deck to control (A to D). Press the rotary selector
to fix it.
The multiplayer can now control TRAKTOR series.
4