4. Operation
DA2DVI-HDCP-Pro – User's Manual
10
This chapter is about the powering and operating of the device describing the
functions which are available by the front/rear controls:
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4.1. Powering On
ATTENTION! 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.
Step 1.
After the system is complete, connect the OUTPUT of the
5V power adaptor to the DA2DVI-HDCP-Pro. The unit is
immediately powered ON.
Step 2.
After the DA2DVI-HDCP-Pro is initialized, the attached DVI
source and monitor can be powered on.
Startup Process
Step 1.
After being powered on, the DA2DVI-HDCP-Pro displays its
firmware version using the
EDID Status LED
. The following
example shows this process for a firmware version of 1.2.2:
Step 2.
After indicating the firmware version, the Status LED turns
green if the selected EDID is valid, or turns red, if the selected
EDID is invalid.
Step 3.
If a display device is connected to an OUTPUT, the DA2DVI-
HDCP-Pro reads the EDID from the attached monitor’s EDID
memory.
Step 4.
The normal function of the LED 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
.
DA2DVI-HDCP-Pro ensures HDCP functionality, when the HDCP pass-
through is enabled. If a new sink device (monitor) is connected while
HDCP is enabled, the DA2DVI-HDCP-Pro virtually reconnects the
source device to ensure HDCP functionality.
Switching the Hotplug signal off and on again indicates to the source
device, that the sink is ready to communicate. This may cause the
picture disappear for a few seconds.
Short pause
1x
2x
2x
Short pause
EDID
STATUS
EDID
STATUS
EDID
STATUS
If HDCP pass-through is disabled, connecting or reconnecting a
display device does not affect the input. This way the signal on the
OUTPUT will be continuous.
If HDCP is not necessary turn off the HDCP pass-through; see more
4.2. EDID Management
4.2.1. About the 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-HDCP-Pro contains a 97 block non-volatile memory bank.
EDID memory is structured as follows:
Rotary switch
state
Memory bank
number
Description
#01..#49
F01..F49
Factory EDID
(read-only)
#50
Reserved
#51..#98
U01..U48
User programmable
slots
#00 and #99
D01 and D99
Last attached
monitor’s EDID
For more information see the
section.
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.
