User Guide

Crestron QM-MD8X8 8X8 QuickMedia™ Matrix Switcher
3. Secure the ear to the unit with three screws from step 1, as shown in the
following diagram.
Ear Attachment for Rack Mounting
USE COVER SCREWS
4. Repeat procedure (steps 1 through 3) to attach the remaining ear to the
opposite side.
Connecting the Device
Make the necessary connections as called out in the illustration that follows this
paragraph. Refer to “Network Wiring” on page 11 before attaching the 4-position
terminal block connector. Apply power after all connections have been made.
Hardware Connections for the QM-MD8X8
QM INPUTS:
QUICKMEDIA PORT CARRIES
AUDIO, VIDEO, RGB, AND
NICROPHONE SIGNALS
QM OUTPUTS:
QUICKMEDIA PORT CARRIES
AUDIO, VIDEO, RGB, AND
MICROPHONE SIGNALS
CRESNET:
TO CONTROL
SYSTEM AND
OTHER CRESNET
DEVICES
POWER:
24 VDC TO
QM OUTPUTS
5 - 8
POWER:
24 VDC TO
QM OUTPUTS
1 - 4
POWER:
24 VDC TO
QM INPUTS
5 - 8
POWER:
24 VDC TO
QM INPUTS
1 - 4
NOTE: For optimum performance, Crestron strongly recommends using
CRESCAT-QM cable, available from Crestron. Other high-quality/low skew
CAT5e/CAT6 wiring may also be used with varying performance.
The required 24 VDC power for each group of QM inputs and QM outputs can be
supplied in a variety of ways. The following wiring diagram suggests one method of
applying 24 VDC power to the QM ports. In this configuration, the C2N-SPWS300
can supply up to 75 watts of power to each group of QM ports to ensure that
sufficient power is available for QM devices that are connected to the QM-MD8X8.
The C2N-SPWS300 can also supply the power required by the QM-MD8X8.
Operations Guide – DOC. 6260A 8X8 QuickMedia™ Switcher: QM-MD8X8 • 13