Help! I need help hooking up my DJM-900 to CDJ 2000

Ok so I just bought a DJM-900 last night and am trying to hook it up via pro-link to my CDJ 2000's.  I am looking for some step by step instructions to get this rolling.  This is what I have done I bought 2 digital cables (orange) and plugged one into the cdj then one into the mixer channel one.  I did the same thing with the other cdj channel two.  I then plugged in one Ethernet cable in the back of the cdj to a switch and then did the same with the other.  I then plunged the mixer into the switch as well.   I have never hooked up my cdj's via the digital cable I have always used RCAs but I am trying to reduce the amount of cords.  Is there a switch or something I am missing when using the digital cables instead of the RCA.