
Kramer Electronics, Ltd. 
Preliminary 
USER MANUAL 
Models: 
VS-44AV, 4x4 Video Audio Matrix Switcher 
VS-81AV, 8x1 Video/Audio-Stereo Switcher  
VS-81AYC, 8x1 s-Video/Audio-Stereo Switcher  
VS-81V, 8x1 Video Switcher 
VS-81X, 8x1 Balanced Audio Switcher 

Contents 
Contents 
1  Introduction  1 
2  Getting Started  1 
3  Kramer Mechanical Switchers  2 
3.1  Your VS-44AV 4x4 Video Audio Matrix Switcher  2 
3.2  Your VS-81AV 8x1 Video/Audio-Stereo Switcher  3 
3.3  Your VS-81AYC 8x1 s-Video/Audio-Stereo Switcher  4 
3.4  Your VS-81V 8x1 Video Switcher  5 
3.5  Your VS-81X 8x1 Balanced Audio Switcher  7 
4  Connecting Kramer Mechanical Switchers  8 
4.1  Connecting a VS-81V 8x1 Video Switcher  8 
4.2  Connecting a VS-81X Balanced Audio Switcher  9 
4.3  Connecting a VS-81AV 8x1 Video/Audio-Stereo Switcher  10 
Figures
Figure 1: VS-44AV 4x4 Video Audio Matrix Switcher  2 
Figure 2: VS-81AV 8x1 Video/A udio-Stereo Switcher  3 
Figure 3: VS-81AYC 8x1 s-Video/Audio-Stereo Switcher  5 
Figure 4: VS-81V 8x1 Video Swit c he r  6 
Figure 5: VS-81X 8x1 Balanced Audio Switcher  7 
Figure 6: Connecting a VS-81V 8x1 Video Switcher  8 
Figure 7: Connecting a VS-81X Balanced Audio Switcher  9 
Figure 8: Connecting a VS-8 1AV 8x1 Video/Audio-Stereo Switcher  10 
Tables 
Table 1: VS-44AV Functions  2 
Table 2: VS-44AV Technical Specifications  3 
Table 3: VS-81AV Functions  4 
Table 4: VS-81AV Technical Specifications  4 
Table 5: VS-81AYC Functions  5 
Table 6: VS-81AYC Technical Specifications  5 
Table 7: VS-81V Functions  6 
Table 8: VS-81V Technical Specifications  6 
Table 9: VS-81X Functions  7 
Table 10: VS-81X Technical Specifications  7 

Introduction 
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 the video, audio, presentation, and 
broadcasting professional on a daily basis. In recent years, we have 
redesigned and upgraded most o f our line, making the best even better! Our 
1,000-plus different models now appear in 11 groups
1
 that are clearly 
defined b y function. 
Thank you for purchasing your Kramer mechanical switcher, which is ideal 
for a system in which a passive, hard-wired signal path is preferred. 
2  Getting Started 
We recommend that you: 
•  Unpack the e quipment carefully and save the original b ox and 
packaging materials for possible future shipment 
•  Review the contents of this user manual 
•  Use Kramer high-performance high-resolution cables
Each package includes the following items: 
•  The one or more Kramer mechanical switchers 
3
•  This user ma nual
2
To achieve the best performance: 
•  Use only good quality connection cables to avoid interference, 
deterioration in signal quality due to poor matching, and elevated 
noise levels (often associated with low quality cables). 
•  Avoid interference from neighboring electrical appliances that 
may adverse ly influence signal quality and position your Kramer 
switcher away from moisture, excessive sunlight and dust 
1 GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Matrix Switchers; 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; GROUP 11: Sierra Products 
2 The complete list of Kramer cables is on our Web site at 
3 Download up-to-date Kramer user manuals from our Web site at http://www.kramerelectronics.com 
http://www.kramerelectronics.com