What cable connects the amplifier to the DCM?
You can use a QSC DataPort cable to connect an amplifier to the DCM. An advantage of a custom DataPort cable is that the audio pairs are shielded separately from the data lines. DataPort cables can be purchased by visiting the QSC store at www.qscstore.com or by calling QSC Technical Services Group at 1-800-772-2834 (outside USA call 1-714-957-7150). As an alternative you can use a standard 15-pin, male-to-male VGA cable where all the pins are wired through. VGA cables are available at PC retailers.