Specifications

Crestron HD-MD8X1/2 QuickSwitch HD™ HDMI Switchers
Using Crestron Toolbox, the switcher can test HDMI sources and displays for
switching limitations due to HDCP keys. The number of HDCP keys specify the
number of display devices that can be connected to a source over HDMI using
HDCP authentication. For more information, refer to the Crestron Toolbox help file.
EDID
EDID is a piece of data that HDMI receivers use to indicate their capabilities to the
HDMI sources.
The HD-MD8X1 and HD-MD8X2 route HDMI signals from any of the eight video
inputs to one or two (HD-MD8X2 only) output channels. According to the HDMI
standard, HDMI sources are expected to only deliver audio and video formats that
are supported by the destination. To do this, the switcher reads the EDID information
from devices connected to the outputs and determines the video resolutions and
audio format to send to the inputs to program EDID on the inputs.
Using Crestron Toolbox, the switcher can be configured to use several different
algorithms to determine what EDID information is sent to each source:
• Copy Display
Copy Display
DISPLAY 1 DISPLAY 2
DISPLAY 1
1920x1080p 60 Hz
1920x1080p 50 Hz
1920x1080p 24 Hz
1920x1080i 30 Hz
1920x1080i 25 Hz
1280x720p 60 Hz
1280x720p 50 Hz
720x576p 50 Hz
720x480p 60Hz
DISPLAY 2
1920x1080i 30 Hz
1920x1080i 25Hz
1400x1050p 60 Hz
1400x1050p 50Hz
1280x720p 60 Hz
1280x720p 50 Hz
1024x768 60 Hz
720x576p 50 Hz
720x480p 60Hz
COMBINED
1920x1080p 60 Hz
1920x1080p 50 Hz
1920x1080p 24 Hz
1920x1080i 30 Hz
1920x1080i 25 Hz
1280x720p 60 Hz
1280x720p 50 Hz
720x576p 50 Hz
720x480p 60Hz
The EDID information from a DigitalMedia or HDMI output is copied to
the input verbatim. This means that all resolution, audio and vendor
information will be from that display.
Operations Guide – DOC. 6714A QuickSwitch HD™ HDMI Switchers: HD-MD8X1/2 • 15