We recently purchased an IonXe for our theatre, and so I am wanting to switch out the RFU plates to DMX Out to give us 2 more universes. The cable that is currently run to the Boxes is Belden 9728. There does not appear to be a bare wire as there is in the Belden 9729. What is the wiring order, or how can I tell which wire serves as the shielded wire in the bundle? I had trouble telling in the Belden schematics. TIA!