Operation; Powering On; Edid Operations; About Edid Memory - Lightware DA2DVI-DL User Manual

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4. Operation

4
O peration
This chapter is about the powering and operating of the device describing the
functions which are available by the front/rear controls:

Powering On

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EDID Operations

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DA2DVI-DL – User's Manual
4.1. 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 and fix the DC power cable to
the unit and then to the power outlet. The unit is immediately powered
ON.
Startup Process
Step 1. After being powered on, the DA2DVI-DL displays its firmware
version using the EDID Status LEDs. The following example
shows this process for a firmware version of 1.2.1:
1x 2x
Short pause Short pause
Step 2. After indicating the firmware version, the red or green EDID
Status LED lights up depending on the selected EDID's validity:
– Red – 'N': the selected EDID is invalid.
– Green – 'Y': the selected EDID is valid
Step 3. If a display device is connected to DVI-DL OUTPUT 1, the
DA2DVI-DL reads the EDID from the attached monitor's EDID
memory.
– If the read process is successful, the STATUS LED blinks
green four times.
– If the read process is unsuccessful, the STATUS LED blinks
red four times.
Step 4. The normal function of the LEDs is in effect.
WARNING! If none of the LEDs light up upon power-up, the unit is
most likely damaged and further use is not advised. Please con-
tact support@lightware.eu.
4.2. EDID Operations
4.2.1. About EDID memory
Lightware factory preloaded EDIDs are specially provided to force
graphic cards to output only the exact pixel resolution and refresh rate.
Universal EDID (address 49#) allows multiple resolutions including all
common VESA defined resolutions. In addition, it also features audio
support. The use of universal EDID is advised for fast and easy system
setup.
DA2DVI-DL contains a 79 block non-volatile memory bank. EDID
memory is structured as follows:
Rotary switch Memory bank
state number
1x
#01..#50 F01..F50
#51..#79 U01..U29
#00 D01
Factory EDID list can be found in
INFO: The Factory Preset EDID list cannot be modified. These are
the most commonly used resolutions.
INFO: The device 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 connected to the OUTPUTs. In case of powering the
unit off, the last attached monitor's EDID remains in non-volatile
memory.
10
Factory Preset EDID list
User programmable slots
Last attached monitor's EDID
Factory EDID List section.