Oki VGPS2100C User manual

Cabling Systems & Solutions UTP = Unshielded Twisted Pair
Rev092007 VG01
VGA Monitor, Keyboard, and Mouse
Long Range CAT5 Extender
Model: VGPS2100C
Features:
•Extend VGA and Keyboard mouse over 2 CAT5 UTP cables.
•Includes local and remote units.
•Distance ranges up to 300ft / 100m via standard 4 pairs CAT5 UTP or STP cable instead of VGA
cable.
•Built-in dip switch for compatibility with all monitors when using CAT5 UTP cable.
•Supports up to 1280x1024 pixels at 200ft / 60m.
•Passive device; Does not support VGA DDC protocol.
•Perfect for classrooms, lecture halls, tradeshows, video information displays…etc.
Wiring Diagram:
Panel View:
Max. Distance via CAT 5 Cable
800x600 pixels (30MHz) 300ft / 100m
1024x768 pixels (60MHz) 250ft / 75m
1280x1024 pixels (100MHz) 200ft / 60m
Front Rear

Cabling Systems & Solutions UTP = Unshielded Twisted Pair
Rev092007 VG01
Specification:
Model VGPS2100C
Environment VGA. VESA VP&D 1.0, VIP ver 2.0
Devices VGA monitors, LCD projection screen, Laptops, PCs.
Video : 1.1V P-P
Input Signals Horiz & Vert Sync : TTL standard. 300kHz max. bandwidth
Insertion Loss Less than 3dB per pair over the frequency range
V
ideo Signal Return Loss -15dB max from DC to 60Mhz
RJ-45 Pin Configuration
R video (Red): Pin 1 (+)
G video (Green): Pin 4 (+)
B video (Blue): Pin 7 (+)
Horizontal Sync: Pin 3
Pin 2 (-) Balanced
Pin 5 (-) Balanced
Pin 8 (-) Balanced
Vertical Sync: Pin 6
Input : RGB 75 ohms (DB15 HD) Unbalanced
Output : RGB 100 ohms (RJ45 shielded) Balanced
Impedance Horizontal and vertical sync : TTL standard
Dip Switch 5 stage, up to 32 combinations
T
ransmission Distance Up to 300ft / 100m (depend on image resolution)
Cable UTP / STP CAT5 Cable (AWG24)
Operation Temperature 0o~ 55oC
Storage Temperature -20o~ 85oC
Humidity Up to 95% RH
Dimensions W x H x D mm 108 x 74 x 27mm
Application Tips:
The correct cabling connection when use STP cable is as follows:
1. STP (shielding twisted pair) Cable.
2. STP (shielding) RJ45 connector with STP cable connection.
FCC CE C-TICK

Cabling Systems & Solutions UTP = Unshielded Twisted Pair
Rev092007 VG01
If your RJ45 connector is plastic housing (unshielded), then the cable connection must do the
following:
1. The ground cable must pull out around 5-10cm length to connect with VGAExtender’s ground screw for
grounding.
2. Make the ground cable connect to ground screw, then plug RJ45 connector.
Installation:
CAUTION: Make sure to follow this instruction for DIP switch setting when using CAT5 UTP cable. Please
disconnect the wiring from the receiver to monitor when the picture is not normal, otherwise it may damage your
monitor. To have the best picture and quick installation, please use STP cable. There is no need to adjust Dip
switch when using STP (shielding twisted pair) cable.
* There is no need to adjust Dip switch when using STP (shielding twisted pair) cable.
* Follow setup below for Dip Switch setting when using with UTP cable.
1. Set up the Dip switch setting from stage 2 or 3 for both transmitter and receiver and check all wiring and
setting, then connect the monitor.
2. Please disconnect the receiver from the monitor if the picture is not normal, or when there is no picture
display. Then increase the stage of Dip switch at the receiver and re-connect again.
3. If still no picture display, try to increase the stage of Dip switch at the transmitter and re-connect again.
4. The picture may be distorted at the upper side when using a CRT monitor. If this happens, you could
increase the stage of Dip switch at the transmitter to improve picture quality.
5. Dip switch by accumulate setting. For Example:
3 + 2 + 1 = 6
3 + 2 = 5
3 + 1 = 4
3 = 3
6. Improper setting may cause no picture display.
7. After the setup, you could adjust the contrast and brightness of the monitor for the best picture quality.

Cabling Systems & Solutions UTP = Unshielded Twisted Pair
Rev092007 VG01
Troubleshooting at picture problem:
1. Picture disappear intermittence or no picture display:
Please adjust the Dip switch setting or change the vertical SYNC frequency of the VGA display card, DVR.
2. Display not syncing up properly:
There are some certain models or brands of monitors with very high demand at sync-sensitive and the DIP
switch setting may not compensate properly. Please use STP (shielding twisted pair) cable instead of UTP
(unshielded twisted pair) cable.
3. Blur picture or Loss of image details:
This may occur as the length of twisted pair cable increases, due to the effects of attenuations. Please change
the active type of VGA extender to have a built-in amplifier function to improve the picture, or try to adjust the
contrast and brightness of the monitor. If the application operates adequately at a lower resolution (i.e. 800x
600 instead of 1024 x768), then setting the monitor to a lower resolution will help improve the image. Please
note the higher DIP switch setting for sync compensation may cause more video signal loss or no picture.
4. Flutter:
Flutter occurs when the background fluctuates between light and dark. This status may be caused by the
grounding problem between the VGA equipment or the connection may be picking up some external
interference from a nearby power transformer. To fix this problem, change the cable to an STP cable.
5. Ghosting:
Ghosting is characterized by a second video image being received after the main image, resulting in a double
image. This is usually caused by the UTP cable connection itself, poor crimping, untwisted pairs, some of the
twisted pairs may be longer than others, poor quality cable, or the impendence mismatch of the cable. In these
cases, the best way is to replace the existing cable with a new one.
6. Wrong colors:
If the wrong colors appear in an image (for example: blue appears where green should appear), the problem
may be caused by poor crimp at RJ45 connector or wrong pin connection. Please check all connections and
verify the pin configuration of the cable between CPU and the monitor to ensure that the correct pin
configuration is respected.
Note:
1. The maximum distances supported by the VGA Extender are dependent on the type of twisted pair cable
and image resolution of the PC’s VGAinterface. Make sure that the maximum recommended operational
distances have not been exceeded.
2. All wiring is “straight-through” twisted pair cable, not being used for other LAN or telephone equipment. Do
not connect the VGA Extender to a telecommunication outlet wired to unrelated equipment.