
Contents 
1  Introduction  1 
2  Getting Started  2 
2.1  Achieving the Best Performance  2 
2.2  Safety Instructions  3 
2.3  Recycling Kramer Products  3 
3  Overview  4 
3.1  Defining the VS-21DPIR 2x1 DisplayPort Switcher  4 
4  Connecting the VS-21DPIR  6 
4.1  Using the Remote Control Transmitter  7 
4.2  Controlling via the REMOTE Terminal Block Connector  7 
5  Technical Specifications  8 
Figures 
Figure 1: VS-21DPIR 2x1 DisplayPort Switcher  5 
Figure 2: Connecting the VS-21DPIR 2x1 Dis pl ayP ort S witcher  6 
Figure 3: Connecting the REMOTE Input Select Connector  7 
VS-21DPIR –  Contents  i 

1  Introduction 
Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been 
providing a world of unique, creative, and affordable solutions to the vast range of 
problems that confront video, audio, presentation, and broadcasting professionals 
on a daily basis. In recent years, we have redesigned and upgraded most of our 
line, making the best even better! 
Our 1,000-plus different models now appear in 11 groups that are clearly defined 
by function: GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Routers; 
GROUP 3: Control Systems; GROUP 4: Format/Standards Converters; GROUP 5: 
Range Extenders and Repeaters; GROUP 6: Specialty AV Products; GROUP 7: 
Scan Converters and Scalers; GROUP 8: Cables and Connectors; GROUP 9: 
Room Connectivity; GROUP 10: Accessories and Rack Adapters and GROUP 11: 
Sierra Products. 
Congratulations on purchasing your Kramer VS-21DPIR 2x1 DisplayPort Switcher, 
which is ideal for the following typical applications: 
• Home theater, presentation and multimedia applications 
• Rental and staging  
VS-21DPIR - Introduction  1 

2  Getting Started 
We rec ommend that you: 
•  Unpack the equipment carefully and save the original box and packaging 
materials for possible future shipment 
•  Review the contents of this user manual 
Go to http://www.kramerelectronics.com to check for up-to-date  
user manuals, application programs, and to check if firmware 
upgrades are available (where appropriate). 
2.1  Achieving the Best Performance 
To achieve the best performance: 
•  Use only good quality connection cables (we recommend Kramer high-
performance, high-resolution cables) to avoid interference, deterioration in 
signal quality due to poor matching, and elevated noise levels (often 
associated with low quality cables) 
•  Do not secure the cables in tight bundles or roll the slack into tight coils 
•  Avoid interference from neighboring electrical appliances that may adversely 
influence signal quality 
•  Position your Kramer product away from moisture, excessi ve sunlight and 
dust 
This equipment is to be used only inside a building. It may only be 
connected to other equipment that is installed inside a building. 
2  VS-21DPIR - Getting Started