Connections! Be sure to turn off the power and unplug the power cord from the power outlet whenever making or changing connections.! Refer to the operating instructions for the component to be connected.! Connect the power cord after all the connections between devices have been completed.! When using a LAN cable for connection, be sure to use either the LAN cable included with this product or an STP (shielded twisted pair) cable.! Do not disconnect the LAN cable when music files and/or information are being shared using PRO DJ LINK.Basic stylePlayback on this unit is performed mainly using tracks prepared with rekordbox installed on a computer.! For instructions on operating rekordbox, see rekordbox (Mac/Windows)’s operating instructions. The rekordbox (Mac/Windows) operating instruc-tions can be viewed from the rekordbox (Mac/Windows) [Help] menu.! Also, for DJ players and DJ mixers, up to four PRO DJ LINK-compatible players can be connected with LAN cables (CAT5e) using PRO DJ LINKconnections.! A switching hub (commercially available) may be necessary, depending on the combination of models used. Use a switching hub of 100 Mbps orgreater. Some switching hubs may not operate properly.A switching hub (commercially available) is necessary to connect to a mixer equipped with only one LAN port. For mixers with enough LAN ports forall the DJ players and computers in the system, connect directly to the LAN ports on the mixer’s rear panel, without using a hub.PRO DJ LINK (USB Export)! rekordbox music files and data can be exchanged with this unit using a memory device (flash memory, hard disk, etc.), eliminating the need to takea computer into the DJ booth. Such information as playlists, cues, loops and hot cues set in advance with rekordbox can be used for playback.The CDJ-900NXS does not include a hot cue function, so hot cues cannot be used on the CDJ-900NXS.AC INCONTROLR LAUDIO OUT CONTROL DIGITAL OUTLRrekordboxTMBEAT DIVIDEI4-B3/41/31/21/41/8USBSTOPDJ player DJ mixerUSB device onwhichrekordbox datais recordedMobile deviceon whichrekordbox isinstalledLAN cableLAN cableLAN cableAudio cableAudiocableComputerSwitching hubRear panelPower cord To power outletCautionsTo use rekordbox’s music file management functions to their maximum, set the channel of the audio or coaxial digital input cable connected to themixer and the player number to the same number.If the player number is different, change the [PLAYER No.] setting on the [UTILITY] screen.= For instructions on changing the settings on the [UTILITY] screen, see this product’s operating instructions.! When a storage device is connected to this unit, [PLAYER No.] is displayed in gray and cannot be changed. Disconnect the storage device or LANcable to turn the link off, then change the setting.En6