QSC DCM-1 User Manual page 20

INSTALLATION-
SUPPORTING THE REAR OF THE DCM (requires optional hardware)
For mobile and touring use, it is extremely important to support the rear of the DCM. The chassis and rack
can be damaged if the DCM is not properly supported. Unless the DCM is being installed in its final, fixed
location, QSC strongly recommends supporting the rear of the unit. Rear rack ears, required hardware, and
a separate instruction sheet are available from QSC's Technical Services Group (part number FG-000031-
00).
Attaching Rear Rack Ears
Method 1
The DCM is first installed from the
front of the rack and secured to the
front rack rails. The rear ears are
then secured to the DCM using two
machine screws. The ears are
secured to the rails using regular
rack hardware.
20
Rear Rack Ears (optional accessory)
Method 2
The DCM is first installed from the
front of the rack and secured to the
front rack rails. Temporarily secure
the rear ears to the rear rack rails
and select the appropriate mounting
position for the "pin". Remove the
rear ears and install the locator pins
securely. Use of thread-locking is
recommended for high-vibration
installations.