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                        vs2491.fm  Page 6  Thursday, March 30, 2006  11:35 AM Specifications Function VS-291 VS-491 Connectors Output 1 x HDB-15 Female Input 2 x HDB-15 Male 4 x HDB-15 Male Power 1 x Power Jack LEDs (Selected Ports 2 4 Port Selection 1 x Push Button Switch Video Resolution 1920 x 1440@60Hz; DDC; DDC2; DDC2B Cable Distance 10m (30' Signal Type VGA; SVGA; XGA; Multisync Power Consumption DC 9V; 0.9W (max.) DC 9V; 1.35W (max.) Environment Operating Temp 0°~ 50°C   Storage Temp -20°~ 60°C Humidity 0 ~ 80% 
                    
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                        vs2491.fm  Page 7  Thursday, March 30, 2006  11:35 AM Limited Warranty IN NO EVENT SHALL THE DIRECT VENDOR'S LIABILITY EXCEED THE PRICE  PAID FOR THE PRODUCT FROM THE DIRECT, INDIRECT, SPECIAL,  INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE  OF THE PRODUCT, DISK OR ITS DOCUMENTATION. The direct vendor makes no warranty or representation, expressed, implied, or  statutory with respect to the contents or use of this documentation, and specially  disclaims its quality, performance, mer
                    
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                        vs2491.fm  Page 8  Thursday, March 30, 2006  11:35 AM - 8 -                                                                                                                                                                                                                                                                                                                                                                                                                                                         
                    
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                        vs2491.fm  Page -1  Thursday, March 30, 2006  11:35 AM
User Manual
VS-291/VS-491
Read this guide thoroughly and follow the installation and 
operation procedures carefully in order to prevent any damage to 
the units and/or any devices that connect to them.
This package contains:
w 1 Video Switch (VS-291; or VS-491)
w 1 DC 9V Power Adapter
w 1 User Manual
If anything is damaged or missing, contact your dealer.
Copyright © 2002 - 2006 ATEN® International Co., Ltd.
Manual Part No. PAPE-1181-100
Pr
                    
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                        vs2491.fm  Page 0  Thursday, March 30, 2006  11:35 AM Note: This equipment has been tested and found to  comply with the limits for a Class B digital device, pursuant  to Part 15 of the FCC Rules. These limits are designed to  provide reasonable protection against harmful  interference in a residential installation. This equipment  generates, uses and can radiate radio frequency energy,  and if not installed and used in accordance with the  instruction manual, may cause interference to radio  co
                    
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                        vs2491.fm  Page 1  Thursday, March 30, 2006  11:35 AM Overview The VS-291/VS-491 Video Switches are control units that allow  you to conveniently display the video output of two (VS-291) or  four (VS-491) separate computer systems on a single monitor,  thereby eliminating the unnecessary expense of purchasing a  separate monitor for each computer. The units use electronic  switching technology, rather than mechanical switching, for  greater reliability and durability. The VS-291/VS-491 also save
                    
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                        vs2491.fm  Page 2  Thursday, March 30, 2006  11:35 AM Hardware Requirements  One VGA, SVGA, XGA, or Multisync compatible analog  monitor, with a standard PC high density cable having a 15  pin D type male connector  One VGA, SVGA, XGA, or Multisync analog video card  having a standard PC 15 pin D type female connector per  computer.  One video cable (having a 15 pin D type male connector at  one end, and a 15 pin D type female connector at the other),  per computer Note: 1. Cables require a sepa
                    
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                        vs2491.fm  Page 3  Thursday, March 30, 2006  11:35 AM VS-491 Front View 1 2 No. Description Function 1 Port Selection Press this button to cycle the video focus among the  Switch computers. 2 Selected Port The numbers correspond to the video ports on the  LEDs back panel. A LED lights to indicate that its  corresponding port is the one that has the video focus. Note: The VS-291 Front View is similar to the VS-491, except it  only has two Selected Port LEDs. - 3 -                                 
                    
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                        vs2491.fm  Page 4  Thursday, March 30, 2006  11:35 AM VS-491 Rear View 12 3 No. Description Function 1 Monitor Port The monitor cable plugs in here. 2 Video Ports The video cables that connect to the computer video  ports plug in here. 3 Power Jack The Power Adapter cable plugs in here. Note: The VS-291 Rear View is similar to the VS-491, except it  only has two Video Ports. - 4 -                                                                                                                     
                    
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                        vs2491.fm  Page 5  Thursday, March 30, 2006  11:35 AM Installation Installation is simply a matter of plugging in cables. Refer to the  diagrams above as you follow the step by step directions below: 1. Plug the monitor cable into the unit's Monitor port. 2. Plug the female end of a male to female video extender cable  into any available video port on the unit's rear panel; plug the  male end of the cable into the computer's video output port. Note: The video extender cable does not come with th