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Installation
Comm-Link cable and two 3.5 mm captive screw connectors.
Wire the connectors as shown in figure 5.
Black — hot plug detect
Figure 5 — DDC Cable Connector
Indicator
Power LEDs — Located on the front panel (figure 6), these light
to indicate that the DDTX and DDRX are receiving power.
Transmitter
TX0
Receiver
Figure 6 — DDTX/DDRX front panels
Operation
After the transmitter, the receiver, and their connected devices are
powered up, the system is fully operational. If any problems are
encountered, ensure all cables are routed and connected properly.
Transmission distance is limited. The distance between
the transmitter and receiver can be up to 150' if using
Extron High Resolution cable, or up to 330' with Super
High Resolution cable.
Ensure that the computer and local monitor are properly
connected to the DDTX/DDRX pair, and that the DDTX,
the DDRX, and the monitor have power applied before
power is applied to the computer. If all other devices are
not turned on before the computer is powered on, the
image will not appear.
5
3
DDTX/DDRX DVI • Installation and Operation
DDTX/DDRX DVI • Installation
Red — logic 5V
Stranded drain wire
Violet — DDC clock
White — DDC data
DDTX DVI
DIRECT DIGITAL TRANSMITTER
Power LED
INPUTS
TX1
TX2
TXC
DDC
A
B
C
D E
DDRX DVI
DIRECT DIGITAL RECEIVER
Paired Set
The DDTX and DDRX are a paired set, sharing a
common serial number. Each half is specifically tailored to
work with the other. Ensure that identically serial-
numbered halves are kept together and are not intermixed
with units from different sets. Units from different sets
are not guaranteed to work together.
When returning a DDTX or DDRX to Extron for service,
ensure that the identically serial-numbered paired half is
also returned.
DVI Connector Pin Assignments
Figure 7 and the table below define the pin assignments for the
DVI protocol.
Female connector
1
8
9
16
17
24
Figure 7 — DVI connectors
P
n i
S
g i
n
l a
P
n i
1
T
M
D
S
D
a
a t
- 2
9
T
M
2
T
M
D
S
D
a
a t
2
+
1
0
T
M
T
M
D
S
D
a
a t
2
4 /
T
M
3
1
1
S
h
e i
d l
4
T
M
D
S
D
a
a t
- 4
1
2
T
M
5
T
M
D
S
D
a
a t
4
+
1
3
T
M
6
D
D
C
C
o l
k c
1
4
+
7
D
D
C
D
a
a t
1
5
G
o r
8
N
o
C
o
n
n
c e
o i t
n
1
6
H
t o
Male connector
S
g i
n
l a
P
n i
S
g i
n
l a
D
S
D
a
a t
- 1
1
7
T
M
D
S
D
a
a t
- 0
D
S
D
a
a t
1
+
1
8
T
M
D
S
D
a
a t
0
+
D
S
D
a
a t
1
3 /
T
M
D
S
D
a
a t
0
5 /
1
9
S
h
e i
d l
S
h
e i
d l
D
S
D
a
a t
- 3
2
0
T
M
D
S
D
a
a t
- 5
D
S
D
a
a t
3
+
2
1
T
M
D
S
D
a
a t
5
+
5
V
P
o
w
r e
2
2
T
M
D
S
C
o l
k c
S
h
u
n
d
+ (
5
) V
2
3
T
M
D
S
l C
c o
+ k
P
u l
g
D
e
e t
t c
2
4
T
M
D
S
l C
c o
- k
DDTX/DDRX DVI • Installation
DDTX/DDRX DVI • Operation
e i
d l
6
4
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