CAT 5 Receivers • Installation and Operation
CAT 5 Receivers • Installation and Operation
Installation and Operation, cont’d
2-5
2-4
a
.
For RGB video
, ensure that pin 2 is jumpered to
pin 3.
b
.
For any other video format
, ensure that pin 1 is
jumpered to pin 2.
6
.
Reinstall the video board, replace the cover, and reinstall
the screws and BNC connector hex nuts.
Transmitted signal cabling
Do not connect this device to a computer data or
telecommunications network
RJ-45 termination must comply with the TIA/EIA
T 568A
wiring standards for all connections.
1
RGB video transmission connector —
Attach one end of a
CAT 5 UTP cable to this RJ-45 female connector (figure 2-2).
Attach the other end to an Extron CAT 5 15HD or BNC
transmitter.
CAT 5 R BNC A
CAT 5 R BNC AV
CAT 5 R AV
RGB INPUT
A-V INPUT
50/60 Hz
100-240V 0.3A
RGB OUTPUT
R
VIDEO
G
B
H/HV
V
A
AUDIO
AUDIO
L
R
B
SOG
C SYNC
L
R
A
A-V AUDIO
L
R
B
L
R
RGB INPUT
RGB OUTPUT
R
G
B
H/HV
V
A
AUDIO
L
R
B
SOG
C SYNC
POWER
15V .5A DC
L
R
A
A-V OUTPUT
L
R
B
A-V INPUT
VIDEO
AUDIO
POWER
15V .5A DC
L
R
8
4
1
3
4
6
7
2
5
6
7
8
7
1
6
3
2
5
6
7
8
Figure 2-2 — Installation features, CAT 5 receivers
2
Composite video transmission connector —
Attach one end of
a CAT 5 UTP cable to this RJ-45 female connector. Attach the
other end to an Extron CAT 5 composite video transmitter.
Termination of CAT 5 cable
Figure 2-3 details the recommended termination of CAT 5 cables
in accordance with the TIA/EIA T 568A wiring standards.
Clip Down
Side
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Pin
Wire color
RGB video and audio
AV Video and audio
Signal
Level
Signal
Level
1 White-green
Red/V. sync+
±0.35V
Video+
+0.35V
2
Green
Red/V. sync-
±0.35V
Video-
-0.35V
3
White-orange
Audio &
power
+15V with
±0.5 V
Power+
+15V
4
Blue
Green+
+0.35V
Reserved None
5
White-blue
Green-
-0.35V
Reserved None
6
Orange
Audio &
power
±0.5 V
Power-
0V
7
White-brown
Blue/H. sync+ ±0.35V
Audio+
±0.5 V
8 Brown
Blue/H. sync-
±0.35V
Audio-
±0.5 V
Figure 2-3 — CAT 5 cable termination
Cable testing
To ensure proper cable termination, each transmission cable
system should be tested. Testing the cable from the RJ-45
connections at the transmitter and receiver gives the most
accurate indications of cable problems.
There are two varieties of cable runs: simple runs, in which a
single cable is terminated only at the transmitter and receiver,
and complex runs, which can include patch bays and multiple
terminations and lengths of cable. In either case, the entire
cabling system should be tested.
A complete test measures cable length and tests the wire map,
attenuation, NEXT, PSNEXT, ELFEXT, PSELFEXT, return loss,
ACR and PSARC. All of these tests are critical for digital data
transfer. While all of these tests are important indicators of the
quality of the cable termination, the most critical testing
parameters for video transfer are wire map (T-568-A
termination) and pair length measurements. The largest
concern is equalization of skew between cable pairs. Cable
systems of 300 feet or less should exhibit no transmission
problems if they pass at least CAT 5e or preferably CAT 6-D5
channel certification testing.
The Microtest OMNI SCANNER 2 performs comprehensive
certification testing to the proposed CAT 6 standards. Other
manufacturers also make testing equipment. The tests include
advanced diagnostics for troubleshooting the cause and location
of many cable and termination problems. For simple
installation testing, the Microtest MICRO SCANNER PRO tests
