Crestron electronic Marine Sanitation System QUICK MEDIA DISTRIBUTION CENTER User Manual

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Crestron QM-MD4x2 QuickMedia Distribution System
The required 24 VDC power for the 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 the QM inputs and QM outputs to ensure that sufficient
power is available for QM devices that are connected to the MD4x2. The C2N-
SPWS300 can also supply the power required by the MD4x2.
Suggested Power Connections for QM-MD4x2
QM-MD4x2
CRESTRON 300 WATT POWER SUPPLY
C2N-SPWS300
CRESTRON QUICKMEDIA
RECEIVER/PROCESSOR
QM-RMCRX
POWER FROM AC ADAPTER
100-240 VAC
4 A, 50/60 Hz
NOTE: The MD4x2 can only be powered by the 4-position terminal block
connector labeled “NET”. Power cannot be supplied from network devices that are
connected to the mini-terminal block connectors.
NOTE: The Y and Z Cresnet data lines from the network are connected to the NET
connector, which is internally wired to the 4-position mini-terminal block connector
at each QM connector.
NOTE: In the configuration shown, the C2N-SPWS300 can operate in the “PWR
ON” position or the “PWR OFF SLAVE” position. For more information, refer to
the latest revision of the C2N-SPWS300 System Power Supply Operations Guide
(Doc. 8190).
NOTE: Power to the QM ports on the MD4x2 can be applied using other
configurations. The total power requirement for devices connected to all of the ports
in a group should not exceed the capabilities of the power supply attached to the 2-
postion terminal block connector. The total power requirement for all devices
connected to a port group (QM IN or QM OUT) cannot be more than 75 Watts.
Programming Software
Have a question or comment about Crestron software?
Answers to frequently asked questions (FAQs) can be viewed in the Online Help
section of the Crestron website (www.crestron.com
). To post your own question or
view questions you have submitted to Crestron’s True Blue Support, log in at
http://support.crestron.com
. First-time users will need to establish a user account.
Operations Guide - DOC. 6278 QuickMedia Distribution System: QM-MD4x2 • 17

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