Extron Electronics DVI 201xi Tx User Guide - Manual (Page 12)

EDID Minder
e
EDID Minder Store switch and LED — When depressed, the
transmitter reads and stores the EDID information from the local
monitor. The LED gives the status of this process.
For more information about using the EDID Minder, see
Configuring
EDID on page 10.
DDC Switches
f
DDC route switches — When the DVI-D source device boots up, it uses the Display
Data Channel (DDC), a two-way communication protocol, to obtain Extended Display
Identification Data (EDID) from the display device. This allows the source to output a
resolution that matches the capabilities of the display.
This bank of three DIP switches allows the user to determine how the source device will
obtain the EDID. The EDID can be obtained directly from the display device, or from the
internal memory within. The three switches are:
EDID Minder — This switch must be On for the EDID Minder function to be enabled
(see the Configuration section). The factory default for this switch is the Off position.
Default EDID — When the Default EDID switch is On (factory default), an EDID
showing a native resolution of 1024x768 @ 60 Hz is passed to the source
device. The EDID Minder switch must also be On for the Default EDID
switch to function (see the figure at right and
Configuring EDID on page
10).
Remote DDC — When this switch is Off, DDC will be routed to the local
monitor. When the switch is On, the DDC is routed to the remote display
device.
Control Signal Pass-through
g
Control signal pass-through — The DVI 201xi Tx cannot be controlled by RS-232 or
IR controls. However, it is able to pass signals from a control device, via a receiver, to a
remote device that is controlled by those signals.
NOTE: The RS-232 and IR communications are via a passive
pass-through only; the transmitter neither generates
nor responds to these signals.
Use the three-pole, 3.5 mm captive screw connector on the
transmitter to input RS-232 or IR signals from a control device.
Use the corresponding connector on the receiver to pass signals
to the output display.
See the
note on page 4 for information about connecting wires
to the captive screw connector.
ON
1 2 3
ON
OFF
DEF
AUL
T EDID
EDID MINDER REMOTE DDC
3-Pole
Captive Screw
Connector
3/16" (5 mm)
MAX
Tx Rx
Tx Rx
STORE
EDID
DVI 201xi Tx • Panel Features and Connections 6