Intelix AVO-VGA
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Installation Manual
Introduction
The Intelix AVO-VGA balun set transmits VGA video passively over standard unshielded
twisted pair cable, such as Cat 5, Cat 5e or Cat 6. The AVO-VGA eliminates costly and
bulky VGA cable, and extends video transmission distances.
Pre-Installation
Note: The AVO-VGA does not support VGA handshaking and control signals.
Therefore, it is necessar
First connect the source (typically a computer) directly to the destination (typically a
monitor) with a standard VGA cable. After doin
required settin
The AVO-VGA features shielded RJ45 connectors, which are provided as an option in
harsh electrical environments, such as installations with large motors or cable runs
near sources of interference. In such environments, shielded twisted pair cable (STP) may
provide additional noise immunity. When using STP, ensure the shield on both ends of the
htness to the maximum level.
s (i.e., resolution, color, etc.). For best results, also set the contrast and
to set the monitor attributes prior to installing the balun set.
so, set the monitor attributes to the
cable run is terminated to a shielded RJ45 connector.
Caution: Do not attempt to disassemble or alter the balun housing. There are no
user-serviceable parts inside the unit. Doing so will void your warranty.
Installation
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1. Power off the source and destination devices which will be connected to the baluns.
2. Verify the modular outlets and cross connects to which you will connect the AVOVGA are configured properly and labeled appropriately to identify the circuit.
Caution: To minimize the possibility of equipment damage from electrostatic
discharge (ESD), all source and destination equipment must be powered off durin
installation. This includes signal extenders, splitters, and switches.
3. Verify the desired twisted pairs are not being used for other LAN or telephone
equipment.
Caution: Do not connect the balun to a telecommunication outlet wired to
unrelated equipment. Doin
Ensure all connected twisted pair cabling is straight-through (point-to-point).
so may damage the unit or any connected equipment.
4. Connect the send balun (AVO-VGA-S) to the VGA port of the source equipment.
Tighten the mounting screws on each balun.
5. Connect one end of the twisted pair cable to the send balun. The RJ45 pinout in the
twisted pair cabling should conform to the EIA/TIA 568A or 568B standard.
6. Connect the receive balun (AVO-VGA-R) to the destination equipment.
7. Connect the other end of the twisted pair cable to the receive balun. The RJ45 pinout
in the twisted pair cabling should conform to the EIA/TIA 568A or 568B standard.
Note: For your convenience, it is recommended that you uniquely mark the ends
of the twisted pair cable before pulling them through a wall or conduit.
8. Power on the source and destination equipment.
9. If necessary, set monitor contrast and brightness to the desired levels.
10. Set the monitor refresh rate to the optimal rate for the display at the desired resolution.
11. If necessary, adjust the image quality with the Sync Adjust switch on the send and
receive baluns. It is recommended that both switches be in the same position.
Note: The AVO-VGA features an optional grounding screw that may be used to
correct an
the next. Should this occur, connect the balun
building has a grounding problem, such as ground loo
negatively affect the signal. Only ground the AVO-VGA if it positivel
nal.
si
image anomalies, such as differences in hue from one side of a monitor to
round to earth ground. However, if the
s, grounding the balun may
affects the
Troubleshooting
Symptom Probable Causes Possible Solutions
Image distorted or
skewed
No image
Smearing or weak
video contrast
Horizontal bars
moving upward in
background
Weak or distorted
sync signal
Reversed polarity Unusual colors
Bad RJ45 crimp
Exceeded cable
distance
Ground loop
problem
Change the screen refresh rate of the video
source to the next higher or lower setting
Adjust the Sync Adjust switch on both the send
and receive baluns
Attach or detach the grounding screw on either
or both of the baluns to earth ground
Verify RJ45 pinout conforms to EIA/TIA 568A
or 568B standard. If not, re-crimp the cable.
Verify cable grade and total cabling distance
Reduce the screen resolution
Reduce the screen refresh rate
Attach or detach the grounding screw on either
or both of the baluns to earth ground
Verify the source and destination equipment are
at the same ground potential.
Shaking image
Background pattern EMI interference Identify possible radiating frequency sources and
Change the screen refresh rate of the video
source to the next higher or lower setting
isolate them from the cabling. Use shielded
twisted pair cabling.
Technical Specifications
Environment
Devices
Bandwidth
Input Signals
Insertion Loss
Return Loss
Max. Distance via Cat 5
RJ45 Pin Configuration
Reverse Polarity Sensitive
Cable
Temperature
Warranty
Order Information
VGA. VESA VP&D 1.0, VIP ver 2.0
CRT/LCD monitors, plasmas, laptops, PCs, projectors
DC to 60 MHz
Video: 1.1 Vp-p
H/VSync: TTL standard; 300 kHz max bandwidth
Less than 3 dB per pair over the frequency range
-15 dB max from DC to 60 MHz
VGA: 640 x 480 pixels (14 MHz) 450ft (137m)
SVGA: 800 x 600 pixels (22 MHz) 350ft (107m)
XGA: 1024 x 768 pixels (35 MHz) 250ft (76m)
SXGA: 1280 x 1024 pixels (59 MHz) 200ft (61m)
Pins 4 and 5 Green (balanced)
Pins 1 and 2 Red (balanced)
Pins 7 and 8 Blue (balanced)
Pins 3 and 6 Horizontal and Vertical Sync (unbalanced)
Unshielded Cat 5, Cat 5e, Cat 6 or better
Operating: 0 to 55 C.
Storage: -20 to 85 C.
Humidity: up to 95% non-condensing
2 years
AVO-VGA: one send and one receive balun
AVO-VGA-R: one receive balun
AVO-VGA-S: one send balun
Distances and picture quality may be
affected by cable grade, cable quality,
source and destination equipment, RF
and electrical interference, and cable
patches. Intelix specifications are based
on straight-through cabling with
standard-grade Cat 5.
Intelix
2222 Pleasant View Road
Middleton, WI 53562
608-831-0880 | phone
866-4-MATMIX | toll-free
608-831-1833 | fax
www.intelix.com
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