Muxlab Quad Video Balun - Manual (Page 2)

© MuxLab Inc.
Installation
One (1) pair of baluns support four (4) composite video signals or one (1) component
video (YPbPr) and one (1) composite video signal via a Cat 5E/6 twisted pair. To install
the baluns, perform the following steps:
1. Identify the pin configuration of the baluns. Four (4) twisted pairs are required if
all four (4) signals are transmitted. The pin configuration follows the EIA/TIA
568A/B standard. The Quad Video Balun is reverse polarity sensitive. Please
ensure that wiring is straight-through (Ring to Ring, Tip to Tip).
2. At the video source end, connect a Quad Video Balun to the video output using the
appropriate number of RCA or BNC cables.
3. At the video display end, connect a Quad Video Balun to the video input using the
appropriate number of RCA or BNC cables.
4. Complete the connection between the two baluns, using standard Cat 5E/6 twisted
pair cable and connecting hardware, terminated on RJ45 plugs at both ends. Ensure
that there are no split pairs or taps.
5. Power-on the video equipment. Check the image quality and refer to the
troubleshooting table below if the image quality is unsatisfactory. The following
diagram shows a typical installation.
Troubleshooting
The following table describes some of the symptoms, probable causes and possible
solutions in respect to the installation of the Quad Video Balun:
Symptom Probable Cause Possible Solutions
No continuity in video link
Verify cable continuity between pairs of
baluns.
Power off Check power supplies of video equipment. No video
Improper connection and/or
swapped pair Check that baluns are connected to correct
video inputs and outputs.
Unusual colors Reversed polarity
Check wiring and ensure straight-through
polarity
Background pattern EMI interference
Identify possible radiating frequency sources
(i.e., wireless LANs, switching power
supplies). Try to isolate them from the video
connection.
Use shielded twisted pair grounded at both
ends.
Smearing Exceeded distance
Verify cable grade.
Use higher grade cable if necessary.
Exceeded distance
Verify cable grade.
Use higher grade cable if necessary.
Increase contrast on monitor.
Weak contrast
Unusual link attenuation
Verify cable distance using ohmmeter or
cable tester.
Image not stable Defective link or equipment Verify video equipment interface integrity.
Horizontal bars
moving slowly
Substantial crosstalk
between multiple video
sources Consecutively turn off other video sources to
determine which video source is the cause of
interference.
Snowy picture Distance is near limit
Verify cable grade.
Use higher grade cable if necessary.
Reduce color intensity at monitor.
If you still cannot diagnose the problem, please call MuxLab Customer Technical
Support at 877-689-5228 (toll-free in North America) or (+1) 514-905-0588
(International).