System Installation; System Hardware Connections; Required Cables Overview; Power Connection - QSC DCM series User Manual

VIII.SYSTEM INSTALLATION
A. System Hardware Connections
Installation of a DCM hardware unit is extremely simple. The most important task is to make sure that
you have all of the correct cables! Since "mass-termination" connectors are used wherever possible, a
typical system can be wired in minutes.
1. Required Cables
A typical system needs the following cables:
One IEC Power Cord
A 15 pin to 15 pin DataPort Cable for every amplifier
(DCM-1 max = 8, DCM-2 max = 11, DCM-3 max = 15)
One 25 pin to 25 pin Cinema Processor cable.
One 9 pin RS-232 cable (used only by the installer during setup)
One 9 pin Surround Decoder cable (if this option is being used)
2. Power Connections
The power cable uses a standard IEC power cable. To reduce the risk of accidental disconnect,
cable tie all of the power cords in the equipment rack together in such a way that cable movement
is minimized. The DCM power supply is a switch mode type, and will accept a very wide range of
input voltages. Refer to the Appendix 2 for details.

3. Control Computer Connection

This connection is ONLY used to connect to a PC computer during setup or system
troubleshooting.
4. DataPort Connection
QSC DataPorts contain all input cabling, speaker monitor connections, remote on/standby control
and more. For example, 225 connections are made between the DCM-3 and the DCA amplifiers
(15 DataPorts) in just a few minutes! Follow the back panel labeling which shows which DataPort
connects to which physical channels.
DataPort cables can be computer industry VGA-style cables, but make sure that your cable passes
ALL connections between the two 15 pin connectors. See Appendix 1 for pinout information.
Contact QSC if you would like to purchase specially made cables that use shielded audio cable.
5. Processor Connections
Many common cinema processors use a standard 25 pin subD connector for their outputs or have
adapter cables available. The DCM From Processor Output connector conforms to this industry
standard pinout.
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