Operation; Powering On; About Edid Memory (Transmitter) - Lightware DVI-OPT-TX220-Pro User Manual

5. Operation

5.1. Powering on

When building an electronic system, make sure that all of the devices are powered down
before connecting them. Powered on devices may have dangerous voltage levels that can
damage sensitive electronic circuits.
After the system is complete, connect the IEC power cable to the extender unit and then to
the power outlet. The unit is immediately powered ON.
The transmitter's front panel LCD will first show the unit's firmware versions, then after a
few seconds, it will show which EDID is emulated on the DVI INPUT connector. At this point
the DVI-OPT-TX220-Pro is fully initialized and ready to use.
After the extender units are initialized, the attached DVI source and monitor can be
powered on.
Info: The laser becomes enabled any time the transmitter is powered on, disregarding that it was
disabled before or not. This is done to avoid accidental laser loss problems.
Info: If neither the LEDs nor the LCD light up upon power-up, the unit is most likely damaged
and further use is not advised. Please contact support@lightware.eu.

5.2. About EDID memory (transmitter)

The EDID memory is non-volatile and can store 99 EDIDs. Any of these can be switched
to the input port, to emulate. The memory structure is as follows:
F1..F49 .................................................................................. Factory Preset EDID list
U1..U49 ...................................................................... User programmable memories
D2........................................................ Last attached monitor's EDID (Local Monitor)
E1 ............................................................................................ Emulated EDID (Input)
Info: DVI-OPT-TX220-Pro can handle both 128 Byte EDID and 256 Byte extended EDID
structures.
Info: The attached monitor's EDID is stored automatically, until a new monitor is attached to the
local monitor output. In case of powering the unit off, the last attached monitor's EDID
remains in non-volatile memory.
Factory preset EDIDs
The factory EDIDs (F1-F49) are factory preprogrammed and cannot be modified. These
are the most common resolutions. They are specially provided to force graphic cards to
output only the exact pixel resolution and refresh rate.
Universal EDID (F49) allows multiple resolutions including all common VESA defined
resolutions. The use of universal EDID is recommended for fast and easy system setup.
Info: Factory EDIDs do not include HDMI support. If you need audio, you can create an EDID
with HDMI support with the Easy EDID Creator and upload it to user EDID memory. See
section
Section 5. Operation
6.6.8 on page 36 for more information.
DVI-OPT-TX220-Pro, DVI-OPT-RX220-Pro
User's Manual
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