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Crestron QM-DA QuickMedia™ Distribution Amplifier
WARNING: To prevent bodily injury when mounting or servicing this unit in a
rack, take special precautions to ensure that the system remains stable. The following
guidelines are provided to ensure your safety:
• When mounting this unit in a partially filled rack, load the rack from the
bottom to the top with the heaviest component at the bottom of the rack.
• If the rack is provided with stabilizing devices, install the stabilizers before
mounting or servicing the unit in the rack.
NOTE: If rack mounting is not required, rubber feet are provided for tabletop
mounting or stacking. Apply the feet near the corner edges on the underside of the
unit.
NOTE: Reliable earthing of rack-mounted equipment should be maintained.
Particular attention should be given to supply connections other than direct
connections to the branch circuit (e.g. use of power strips).
To install the ears:
1. There are screws that secure each side of the QM-DA top cover. Using a #2
Phillips screwdriver, remove the three screws closest to the front panel from
one side of the unit. Refer to the diagram following step 3 for a detailed
view.
2. Position a rack ear so that its mounting holes align with the holes vacated
by the screws in step 1.
3. Secure the ear to the unit with three screws from step 1, as shown in the
following diagram.
Ear Attachment for Rack Mounting (this image shows a 1RU device)
USE COVER SCREWS
4. Repeat procedure (steps 1 through 3) to attach the remaining ear to the
opposite side.
Stacking
Four “feet” are provided with the QM-DA so that if the unit is not rack mounted, the
rubber feet can provide stability when the unit is placed on a flat surface or stacked.
These feet should be attached prior to the hookup procedure.
NOTE: No more than two QM-DA units should be stacked.
Operations Guide – DOC. 6547A QuickMedia™ Distribution Amplifier: QM-DA • 9