Owner manual

DDTX/DDRX DVI • InstallationDDTX/DDRX DVI • Installation
Installation
43
a. If feet were previously installed on the bottom of the
case, remove them.
b. Mount the DDTX on the rack shelf, using two 4-40 x
1/8 screws in opposite (diagonal) corners to secure the
case to the shelf.
3. For optional bracket mounting, attach the included
mounting bracket to the DDRX using the 3 bracket screws.
The DDRX can then be attached to a projector mount or
some other secure surface by inserting the mounting screw
through the bracket’s slotted hole (figure 2).
Digital projector
DVI cable
DDRX DVI
Ceiling
Figure 2 — Bracket mounting a DDRX
4. Connect the DDTX DVI input cable (figure 3) to the DVI
video output port of the computer (figure 4).
Transmitter
DVI Input Cable
Receiver
50/60 Hz
100-240 V 0.2A
TX0 TX1 TX2 TXC
DDC
OUTPUTS
ABCDE
TX0 TX1 TX2 TXC
DDC
DECBA
DISPLAY
INPUTS
DIRECT DIGITAL RECEIVER
DDRX DVI
9 -12V 1.0A
POWER
Figure 3 — DDTX and DDRX connector panels
5. Connect coax cable between the TX0, TX1, TX2, and TXC
BNC connectors on the rear of the DDTX and those on the
DDRX.
6. Connect a DDC cable between the DDC connectors on the
rear of the DDTX and those on the DDRX, see DDC Cable,
below.
7. Connect the desired DVI/DFP-compatible monitor, LCD
panel, or projector to the Display connector on the rear of
the DDRX.
DDTX DVI
DIRECT DIGITAL TRANSMITTER
DVI cable
or
Direct digital displays
4 BNC cable
Front panel
Rear panel
Rear panel
Comm-Link cable
DDTX DVI DDRX DVI
PC computer
digital video out
HDTV plasma Large screen display
DISPLAY
9 -12V 1.0A
POWER
TX0 TX1 TX2 TXC
DDC
DECBA
INPUTS
DIRECT DIGITAL RECEIVER
DDRX DVI
50/60 Hz
100-240 V 0.3A
TX0 TX1 TX2 TXC
DDC
OUTPUTS
ABCDE
Figure 4 — DDTX/DDRX typical application
The maximum permissible length of the DVI input and
output cables is 16.4 feet (5 meters). Ensure that the
cables do not exceed the maximum permissible length,
otherwise images may be distorted or missing. Extron
does not guarantee signal integrity beyond 16.4 feet.
8. Connect a standard IEC power cord between the DDTX
power connector and a 100 to 240VAC, 50 Hz or 60 Hz
power source.
9. Connect 9-12VDC to the power connector on the DDRX,
either from the included external power supply or from a
source on the projector.
10. Power on the local monitor.
11. Power on the computer.
DDC Cable
The DDTX/DDRX DVI pair requires a DDC cable, up to 330’ in
length. Extron’s Custom Cables on Call can make a DDC cable
made-to-order, or it can be made on-site with Extron’s Plenum