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VGA Extender
Model: VB100VK
For units purchased before 11/07, please download manual here
 

The VGA Extender allows VGA video signals to be transmitted up to 500ft / 135m via 4-pairs CAT5 STP or UTP cable. Used in pairs, the VGA Extender can be used in home or commercial applications as a smart, fast and cost-effective solution. It eliminates costly and bulky VGA cable, allowing VGA monitors to be connected extended distances from the PC via standard twisted pair cable. This product is ideal for classrooms, lecture halls, retail kiosks, video information displays, overhead projector systems, PC-training systems, and tradeshows PC demo systems.

 
Features:
  • Passive device, no power required
  • Includes VB100VK-T Transmitter unit and VB100VK-R Receiver unit
  • Supports up to 1280x1024 pixels
  • Distance up to 500ft / 135m via standard CAT5 STP or UTP cable instead of VGA cable
  • Transmitter has built-in virtual DDC to avoid improper resolution and frequency settings
  • Transmitter has built-in sync mode selection for signal stability
  • Receiver has built-in sync filter level adjustment for signal stability
 

Installation:

  Recommended Cable:
1. CAT5e UTP/STP or CAT6 UTP cable.

2. Certain brands or models of monitors are highly sync-sensitive. In these cases we recommend using STP (shielded twisted pair) cable instead of UTP (unshielded twisted pair) cable.

RJ45 Pin Configuration: TIA/EIA 568B Wiring standard

1. Orange-white Red +
2. Orange Red -
3. Green-white H-Sync
4. Blue Green +
5. Blue-white Green -
6. Green V-Sync
7. Brown-white Blue +
8. Brown Blue -
 
Switch Setting:
VB100VK-T Sync Mode Select

 ← Mode 1 → Mode 2   

1. For newer monitors, Mode 1 is recommended for the best stability. If you experience problems with the picture, switch to Mode 2.  

2. For older monitors, Mode 2 is recommended. If the picture is still not stable, please try adjusting the dip switches on the VB100VK-R Receiver unit. In the case that the dip switches still do not fix the problem, please use STP (shielded twisted pair) cable.

DIP Switch Setting:
VB100VK-R Sync Filter Level
====================
１２３４５
↓↓↓↓↓Level 0 (Min)
↑↓↓↓↓Level 1
↓↑↓↓↓Level 2
↓↓↑↓↓Level 3
↓↓↓↑↓Level 4
↓↓↓↓↑Level 5 (Max)  

The Sync Filter is designed for UTP CAT5 cabling. Sync Filter level adjustment adds sync stability, but does not adjust picture quality or eliminate skew. Since each monitor has different settings, there is no recommended setting. Please adjust the level based on picture stability. If there is no picture display or if you experience problems with the picture, please use STP cable.

Caution:
  1. The wiring must be placed away from electromagnetic equipment, i.e. microwave, wireless, high voltage cable…etc.
  2. The maximum distances supported by the VGA Extender are dependent on the type of twisted pair cable used and image resolution of the PC’s VGA interface. Make sure that the maximum recommended operational distances have not been exceeded.
  3. All wiring is “straight-through” twisted pair cable, and should not be used for other LAN or telephone equipment.
  4. Do not connect the VGA Extender to a telecommunication outlet wired to unrelated equipment.
Troubleshooting picture problems:

1. No picture display:  

Check Link cable
Check DIP switch setting Check
VGA cable connection
Change the resolution or frequency
Change Link cable for STP cable  

2. Picture not stable or disappear intermittence or no picture display:  

Check DIP switch setting
Change the resolution or frequency
Place wiring away from electromagnetic equipment
Change Link cable for STP cable  

3. Picture tilt:

Check DIP switch setting
Change the resolution or frequency
Change Link cable for STP cable
 
Application Diagram:


Panel View:
VB100VK-T
Front ViewRear View
VB100VK-R
Front ViewRear View

Max. Distance via CAT5 Cable

640x480 pixels (15MHz)

500ft / 135m

800x600 pixels (30MHz)

350ft / 105m

1024x768 pixels (60MHz)

250ft / 75m

1280x1024 pixels (100MHz)

200ft / 60m


Specification:
Model Number
VB100VK-T
VB100VK-R
Devices
DVR, VGA Monitors, Projectors, Laptops, PCs.
Input Signals
Video: 1 Vp-p
Horizontal & Vertical Sync : TTL standard.
300kHz max. bandwidth
Insertion Loss
Less than 3dB per pair over the frequency range
Video Signal Return Loss
-15dB max from DC to 60Mhz
RJ45 Pin Configuration:
EIA 568B Wiring standard
R video (Red): Pin 1 (+), Pin 2 (-) Balanced
G video (Green): Pin 4 (+), Pin 5 (-) Balanced
B video (Blue): Pin 7 (+), Pin 8 (-) Balanced
Horizontal Sync: Pin 3, Vertical Sync: Pin 6
Impedance
Input : RGB 75 ohms (DB15 HD) Unbalanced
Input : RGB 100 ohms (RJ45 shielded) Balanced
Output : RGB 100 ohms (RJ45 shielded) Balanced
Output : RGB 75 ohms (DB15 HD) Unbalanced
Horizontal and vertical sync : TTL standard
Setting Switch
2-Stage Slide Switch
5-Stage Dip Switch
Transmission Distance
60 -135 meters depend on image resolution
Link Cable
CAT5 / CAT5e / CAT6 / STP or UTP Cable
Temperature
Operation: 0 to 55 C, Storage: -20 TO 85 c,
Humidity: up to 95%
Dimensions W x H x D mm
110 x 77 x 26


Application Tips to use CAT5 STP cable:

The following is the correct cable connection when using STP cable:

1. STP (shielded twisted pair) Cable.



2. STP (shielded) RJ45 connector with STP cable connection.



If your RJ45 connector has plastic housing (unshielded), then the cable connection must be configured as follows:
  • The ground cable must be pulled out around 5 -10cm to connect with the VGA Extender’s ground screw for grounding.
  • Connect the ground cable to the ground screw, and then plug in the RJ45 connector.

Troubleshooting:
  • Check all the connections and verify the pin of configuration.
  • The maximum distances supported by the VGA balun are dependent on the type of twisted pair cable and image resolution of the PC’s VGA interface.
  • Make sure that the maximum recommended operational distances have not been exceeded.
  • All wiring is “straight-through” twisted pair cable, not being used for other LAN or telephone equipment.
  • Do not connect the VGA BALUN to a telecommunication outlet wired to unrelated equipment.
  • Replace the VGA BALUN with another one that is knows to be working.

C-TICK

OKINA USA Cabling Systems and Solutions provides an answer for all your cabling needs. Our complete line of baluns allows you to easily extend your current audio/video/data system up to 1200ft and even up to 8000 ft, with an active balun.

OKINA USA Baluns are perfectly suited for applications such as these:
CCTV Security Systems
CCTV Surveillance Systems
CCTV Cameras
Home Theatre
LCD/CRT Monitors
Televisions
VGA Monitors
DVD Players
PCs (Personal Computers)
Laptops/Notebooks
USB and PS/2 Devices
UTP (Unshielded Twisted Pair Cable)
BNC (Coaxial Cable)

How does a balun work?
Baluns are used to convert between "Balanced and Unbalanced" electrical signals.
Baluns work by transforming the original unbalanced (video/power/data/etc) signal to a balanced frequency used by a different cable, like CAT5 UTP. Not only does this reduce interference, but it also allows you to transmit a signal much longer than the original application would allow. Baluns are always utilized in pairs. One balun is needed to convert the original signal to a new frequency, and another balun is used at the other end to revert to the original frequency.

"Passive" Video Baluns do not require power, and can extend a signal up to 2000ft (B/W)
"Active" Video Baluns require power, but can extend a signal up to 8000ft (B/W)