5.
Connect one end of the twisted pair cabling (Cat 5, Cat 5e, etc.) to the source balun.
The RJ45 pinout in the twisted pair cabling should conform to the EIA/TIA 568A or
568B standard.
6.
Connect the receive balun to the destination equipment.
7.
Connect the other end of the twisted pair cabling (Cat 5, Cat 5e, etc.) to the receive
balun. The RJ45 pinout in the twisted pair cabling should conform to the EIA/TIA
568A or 568B standard.
8.
Power on the source and destination equipment. During initial start-up, there may be a
two to three second delay before the image appears correctly. During this time, the image
may appear with a yellow hue. This is a normal sync function. The image should correct
itself after a few seconds.
9.
If necessary, set monitor contrast and brightness to the desired levels.
10.
Set the monitor refresh rate to 60 Hz.
Note:
Some monitors are more sensitive than others and may not immediately sync up
properly. Should this occur, both the Intelix VGA-SR send and receive baluns feature
reset
buttons to restore sync signals. In addition, the receive balun also features an
autoset
button. When troubleshooting the sync signals, first press the
reset
button located
next to the RJ45 jack with a small pen or screw driver. While doing so, immediately press
the
autoset
button. After doing so, the image with change hue and gradually return to
normal after about fifteen (15) seconds.
In order to avoid accidentally resetting the connection, the
Screensaver
options under
Windows Display Settings
must be set as follows:
-
Choose any screensaver except “None”
-
The “Turn Off Monitor” setting must be set to “Never”
Note:
The VGA-SR features an optional grounding screw that may be used to clear up
any image anomalies, such as differences in hue from one side of a monitor to the next.
Should this occur, connect the balun ground to earth ground. However, if the building has
a grounding problem, such as ground loops, grounding the balun may negatively affect
the signal. Only ground the VGA-SR if it positively affects the signal.
Troubleshooting
If your equipment malfunctions with VGA-SR baluns in place, follow the
troubleshooting procedures below:
1.
Perform diagnostics on your video equipment by following the manufacturer’s
instructions.
2.
Check all the connections and verify the pin configuration. Verify the RJ45 crimp
pattern conforms to either EIA/TIA 568A or 568B standards.
3.
The maximum distances supported by the VGA-SR balun are dependent on the type
of cable and image resolution of the source and destination equipment. Ensure that
the maximum recommended operational distances have not been exceeded.
4.
Replace the VGA-SR balun with another VGA-SR balun that is known to be
working.
5.
If you still cannot diagnose the problem, visit www.intelix.com or call Intelix
directly at 608-831-0880 to find a qualified distributor.
Specific Symptom
Probable Cause Possible
Solutions
Image distorted or skewed
Specific devices unable to sync
up
Follow reset procedure as
outlined in installation manual
Image not stable
Defective link or equipment
Verify source and destination
equipment and cabling
Unusual colors
Reversed polarity
Verify RJ45 pinout conforms to
EIA/TIA 568A or 568B
standard
Smearing or weak video
contrast
Exceeded cable distance
Verify cable grade and total
cabling distance
Horizontal bars moving
upward in background
Ground loop problem
Verify the source and
destination equipment are on the
same ground plain. Disconnect
ground terminal from earth
ground.
Shaking image
Ground loop problem
Disconnect ground terminal
from earth ground
Variance in hue
EMI interference
Connect ground terminal to
earth ground
Random pixel dislocation
EMI interference or exceeded
distance
Set a lower resolution and
refresh rate. Verify cable grade
and total cabling distance.
Background pattern
EMI interference
Identify possible radiating
frequency sources and isolate
them from the cabling. Use
shielded twisted pair cabling.
