Instrukcja obsługi Intelix AVO-VGA

Intelix przełącznik AVO-VGA

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Intelix AVO-VGA

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

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

cable run is terminated to a shielded RJ45 connector.

Note: The AVO-VGA does not support VGA handshakin

and control si

nals.

Therefore, it is necessar

to set the monitor attributes prior to installin

the balun set.

First connect the source (typically a computer) directly to the destination (typically a

monitor) with a standard VGA cable. After doin

so, set the monitor attributes to the

required settin

s (i.e., resolution, color, etc.). For best results, also set the contrast and

htness to the maximum level.

Caution: Do not attempt to disassemble or alter the balun housin

. There are no

user-serviceable parts inside the unit. Doing so will void your warranty.

Installation

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 AVO-

VGA are configured properly and labeled appropriately to identify the circuit.

3. Verify the desired twisted pairs are not being used for other LAN or telephone

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.

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.

Caution: Do not connect the balun to a telecommunication outlet wired to

unrelated equipment. Doin

so ma

dama

e the unit or an

connected equipment.

Ensure all connected twisted pair cabling is straight-through (point-to-point).

Caution: To minimize the possibilit

of equipment dama

e from electrostatic

discharge (ESD), all source and destination equipment must be powered off durin

installation. This includes signal extenders, splitters, and switches.

Note: For your convenience, it is recommended that

ou uniquel

mark the ends

of the twisted pair cable before pulling them through a wall or conduit.

Note: The AVO-VGA features an optional grounding screw that may be used to

correct an

ima

e anomalies, such as differences in hue from one side of a monitor to

the next. Should this occur, connect the balun

round to earth

round. However, if the

building has a grounding problem, such as ground loo

roundin

the balun ma

negatively affect the signal. Only ground the AVO-VGA if it positivel

affects the

nal.

Troubleshooting

Symptom Probable Causes Possible Solutions

Change the screen refresh rate of the video

source to the next higher or lower setting

Image distorted or

skewed

Adjust the Sync Adjust switch on both the send

and receive baluns

No image

Weak or distorted

sync signal

Attach or detach the grounding screw on either

or both of the baluns to earth ground

Reversed polarity Unusual colors

Bad RJ45 crimp

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

Smearing or weak

video contrast

Exceeded cable

distance

Reduce the screen refresh rate

Attach or detach the grounding screw on either

or both of the baluns to earth ground

Horizontal bars

moving upward in

background Verify the source and destination equipment are

at the same ground potential.

Shaking image

Ground loop

problem

Change the screen refresh rate of the video

source to the next higher or lower setting

Background pattern EMI interference Identify possible radiating frequency sources and

isolate them from the cabling. Use shielded

twisted pair cabling.

Specyfikacje produktu

Marka:	Intelix
Kategoria:	przełącznik
Model:	AVO-VGA

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