Comprehensive CDA-HDMI20 - Manual (Page 8)

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5.0 OPERATING THE UNIT
To use any of the Comprehensive CDA series HDMI Distribution Amplifiers,
connect an HDMI approved cable, no more than 50 feet in length, from the HDMI
source to the input of the DA. Next, connect the outputs of the DA to their
destination devices using HDMI approved cables no more than 50 feet long.*
Lastly, connect the power adapter, first to the AC source and then to the DA.
Turn on the HDMI source as well as the HDMI destination devices and you will
see the source signal appear on the inputs of all of the destination devices and
an LED will light indicating which outputs are active.
*Note: Proper operation of HDMI Distribution Amplifiers depends on the use of
the highest quality cables available. The cable must provide low loss, high
bandwidth signal handling and be used with all Comprehensive HDMI products.
The distance specification cannot be guaranteed unless such cables are used
throughout the system.
5.1 Resolution Tracking
Since HDTV can be any of several different resolutions, the CDA series DA must
be able to sense and process the various resolutions on both input and outputs.
On the input, the DA will sense and accept any standard resolution however, on
the outputs, the DA must sense the resolution capabilities of all of the display
devices connected to it and then set the resolution of all outputs to the resolution
of the display having the lowest resolution response characteristics. To do
otherwise would mean that some display devices would not produce a picture.
The user is advised to use display devices having the same resolution to avoid
the DA’s processing circuitry assuming the lowest common denominator status
on all monitors with respect to display image resolution.