Gefen EXT-HDMI1.3-1FO, Руководство пользователя

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EDID Modes
The Extender for HDMI1.3 Over One Fiber with IR features automatic and
manual EDID adjustments to maximize compatibility of all attached devices. First
it is necessary to understand EDID and what it is used for.
EDID. What is it and what is it used for?
Under normal circumstances, source devices will require information about a
connected display device to assess what video resolutions and other features are
compatible with the output device. This required information is called the EDID
(Extended Display Information Data). Almost all types of output devices/displays
(computer monitor, HDTV, A/V receiver) will transmit EDID to a connected
source. The source will then read this EDID
fi le and make the necessary
adjustments to the output signal to ensure that only compatible resolutions/
features are generated in the output signal.
Why is EDID so important with the Extender for HDMI1.3 Over One Fiber
with IR?
The Extender for HDMI1.3 Over One Fiber with IR collects and retransmits the
EDID information from a display device back to the A/V source, letting it know
what A/V features the display device supports. If this data should be incomplete
or unavailable, the Extender for HDMI1.3 Over One Fiber with IR has to be able
to compensate, otherwise the video picture and/or audio quality may suffer.
What options do I have to manage the EDID?
EDID contains much more than just listings of supported video resolutions
and audio formats. However, these two parameters are the two key types of
information that a user will need to understand EDID mechanics.
A common situation indicating an EDID incompatibility problem between the
source and display device will usually manifest as an interruption in video or
audio on the output device. You can cure the incompatibility in one of two ways,
either by re-routing the display device’s EDID to the source device (EXTERNAL
EDID MODE) or by forcing the use of a stored EDID collected upon
fi rst power-
up of the HDMI 1.3 Over One Fiber With IR (LOCAL EDID MODE).
Selection and use of one of these EDID Modes is detailed on page 8.
7
EDID MANAGEMENT