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VGA / DVI Converter   

 

 

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Overview

For a long time VGA was the dominating graphics standard for computer applications. In the VGA interface three (coaxial-) cables transmit the colour informations R (red), G (green) and B (blue). Two additional conductors transmit the synchronisation signals HSYNC and VSYNC. 

Meanwhile flat screens have become the new standard. Flat screens don´t work using an electron beam which have to be modulated in order to display different bright pixels on the screen, but need the video information in a digital form instead. By different "rotations" of a liquid crystal (LCD=Liquid Crystal Display) different brightness of pixels can be achieved. From there it was just a small step to graphics adapters which were able to provide graphics data digitally - the hour of birth of DVI graphics adapters. For some time flat screens where able to handle both digital and analogue graphics data, DVI and VGA, by converting VGA signals to DVI internally. If you want to use a pure DVI-D KVM Extender or flat screen, which has only a DVI-D input, you need the VGA to DVI converter.     

 

Details

The VGA to DVI converter converts the signal of a VGA source to a format which can be displayed on modern DVI flat screens. The device digitises the incoming signal and saves it to an internal memory. From there it is displayed in a compatible format. Either the resolution and the refresh rate will not be changed and the picture will be displayed as it is or it can be converted to one of the selectable resolutions 640x480, 800x600, 1024x768 or 1280x1024, the refresh rate remains unchanged and it the same as from the original signal.   

Design:

  • Supports VGA and DVI standards
  • Desktop Devices - Rack Mount options (19”): Mount up to 4 devices in 19”/1U. This saves expensive rack space
  • Parts delivered: VGA to DVI converter, international p.s.u, VGA/DVI cable

 

Specifications

  • Resolutions: 55 predefined presets (see table below) 
  • Input signals: VGA, DVI-D 
  • Output signals: DVI
  • Scaling (DVI input signals also scalable): 640x480, 800x600, 1024x768, 1280x1024

Part No.

 

 product notation   part no. 
 VGA to DVI Converter                                                                                                                K238-4V
   
 connecting cables / optional accessories   
 cable for connecting to a VGA signal source (HD15St/DVI-I-St)  436-AA
 19" rack mount kit for 1 ... 4 Single-Head devices  455-4G
 mounting brackets to mount by screws
 455-1K
 mounting brackets to mount by snap on  455-2K
 international power supply unit 90V...230VAC/5VDC-2A  260-5E

Images

  









Download

icon datasheet VGA/DVI Converter (87.5 kB)

icon quick setup VGA/DVI Converter (64.84 kB)

icon manual VGA/DVI Converter (617.8 kB)

icon Rack mount kit (111.66 kB)

 

 

Example Applications

 

  

VGA to DVI Converter  

 

Supported Video Modes

In the following table the pre-installed video modes are shown,
which are supported in factory default setting of the VGA to DVI Converter.

Video Mode Hres  Vres  V-freq   H-freq DotCLK
pixels   lines   Hz  kHz     MHz 
DOS graphic Mode 640 350 69,6  31,3  25
Vesa Standard   640 350  85,1  37,9  31,5
VGA   640 400  56,3  24,7   21
VGA  640 400  69,6  31,3  25
Vesa Standard    640 400  85,1  37,9 31,5
Vesa Standard  640 480 60,2  31,5  25,3
Mac Mode  640 480 67  35 31,5
Vesa Standard   640 480 72,8 37,9 31,5
Vesa Standard 640 480  75 37,5 31,5
Vesa Standard  640 480 85 37,9  35,5
DOS Text Mode  720 400 69,6 31,5 28,1
Vesa Standard  720  400 85 37,9 35,5
NTSC progressive   720  480  59,9 31,5 27
PAL progressive   720  576  50 31,3 27
Vesa Standard 800  600  56,3 35,2 36
Vesa Standard  800  600  60,3 37,9 40
Vesa Standard  800  600  72,2 48,1 50
Vesa Standard  800  600  75 46,9 49,5
Vesa Standard 800  600 85,1 53,7 56,3
Mac Mode 832  624  75,1 49,7 55,5
Vesa Standard  1024  768  60 48,4 65
Vesa Standard  1024 768  70,1 56,5 75
SUN Mode 1024 768  72 57,8 75,2
Vesa Standard 1024 768  75 60 78,8
Vesa Standard   1024 768 85 68,7 94,5
DMT1185   1152 864  70 63,8 100
Mode 1152 864 70 63,8 94,5
Vesa Standard 1152  864  75 67,5 108
SUN Mode  1152 900  66 61,8 94,5
Vesa CVT 16:9 1280 720 60 44,8 74,5
WXGA 1280 768  60 48,1 81,2
WXGA 1280 768 60,2 47,8 80
WXGA 16:10 CVT 1280 800 59,8 49,7 83,5
Vesa Standard 1280 960 60 60 108
DMT127A 1280 960 75 75 126
Vesa Standard 1280 960 85 85,9 148,5
TV 1280 1024  50 53,4 90
Vesa Standard 1280 1024  60 64 108
SUN Mode 1280 1024  66 71,7 115,8
SGI 1280 1024  72 76,7 128,8
HP Workstation B123 L 1280 1024  72 78,1 135
Vesa Standard 1280 1024 75 80 135
Vesa Standard 1280 1024 85 91,1 157,5
TV Mode 16:9 1360 765 60,1 47,6 84,5
Plasma TV 16:9 1360 768 60 47,7 85,5
NVIDIA 4:3 1400 1050 59,9 65,2 121,5
TV Mode 16:10 1440 900 72 55,6 89
TV Mode 16:9 1600 900 50 55,8 118,8
SGI 1600 1024 60 77,6 158,3
UXGA genlocked 1600 1200 60,1 75 138
Vesa Standard 1600 1200 59,9 75 162
UXGA reduced blank 1600 1200 60,1 75,4 140,6
WSXGA+ 16:10 DVI 1680 1050 60 64,7 119
WSXGA+ 16:10 VGA 1680 1050 50 65,3 146,3
TV Mode 16:9 1920 1080 59,9 56,4 148,5
TV Mode 16:9 1920 1080 59,9 66,6 138,5
EIA861B16:9 1920 1080 60 67,5 148,5
WUXGA 1920 1200 60 74 154
 
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Copyright © January 2008,  IHSE GmbH, Maybachstrasse 11, D-88094 Oberteuringen, fon: +49 (0)-7546-9248-0, fax: +49 (0)-7546-9248-48, HRB 580617 country court Freiburg, VAT-No.: DE146965085. All Rights reserved.

All information, noted in this document is subject to change without any notice and without giving reasons.  While every precaution has been taken in the preparation of this WEB page, the manufacturer assumes no responsibility for errors or omissions. Neither does the manufacturer assume any liability for damages resulting from the use of the information contained herein. The manufacturer reserves the right to change the specifications, functions, or circuitry of the product without notice. The manufacturer cannot accept liability for damage due to misuse of the product or due to other circumstances outside the manufacturer’s control. And the manufacturer will not be responsible for any loss, damage, or injury arising directly or indirectly from the use of this product.

Other products and corporations are Trade Marks or registered Trade Marks of the respective licensor. Revision: 2008-01-07 . - Legal Notice -

 
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