Specifications

Crestron DigitalMedia™ Design Guide
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DigitalMedia Source Testing
The Crestron DigitalMedia solution tests each source HDCP limit when the system is commissioned. It allows the installer to
limit the number of zones for each source to minimize the number of connected devices. Potential problem areas are pointed
out by the DigitalMedia system. Installation problems can be avoided by selecting source equipment that have greater HDCP
limits and designing around any low HDCP limit sources.
During system design, the number of devices connected to each source should be counted, to ensure that they fall under the
device’s HDCP limit. To count the total number of devices in the system, add up the number of HDMI devices that are in the
zones where the source will be used, including DigitalMedia switchers, AV receivers and displays. Do not count the
DigitalMedia receivers or repeaters.
In this example, any source with HDCP limits of four or more is problem-free. If the source device’s HDCP limit is too low, the
source can still be used but cannot be viewed in all zones simultaneously.