
KRAMER ELECTRONICS LTD. 
USER MANUAL 
MODEL: 
VS-88DTP 
8x8
 DVI - Twisted Pair Matrix 
Switcher
P/N: 2900-000749 Rev 2 

Contents 
1  Introduction  1 
2  Getting Started  2 
2.1  Achieving the Best Performance  2 
2.2  Safety Instructions  2 
2.3  Recycling Kramer Products  3 
3  Overview  4 
3.1  Defining the VS-88DTP 8x8 DVI - Twisted Pair Matrix Switcher  5 
3.2  Using the IR Transmitter  8 
4  Installing the VS-88DTP in a Rack  9 
5  Connecting the VS-88DTP  10 
5.1  Connecting to the VS-88DTP via RS-232  11 
5.2  Connecting a PC or Controller to the RS-485 Port  12 
5.3  Connecting the VS-88DTP via Ethernet  15 
6  Operating the VS-88DTP  18 
6.1  Routing Inputs to Outputs  18 
6.2  Disconnecting Outputs  18 
6.3  Storing and Recalling Setups in Presets  19 
6.4  Switching Between Protocol 2000 and Protocol 3000  19 
6.5  Acquiring the EDID  20 
6.6  Locking and Unlocking the Front Panel Buttons  22 
6.7  Control Configuration via the Ethernet Port  22 
7  Controlling the VS-88DTP Remotely via Ethernet  23 
7.1  Connecting to the VS-88DTP via your Browser  23 
7.2  The Main Switching Matrix Page  26 
7.3  The Configuration Page  31 
8  Technical Specifications  33 
9  Default Communication Parameters  34 
10  Default EDID  35 
11  Updating the VS-88DTP Firmware  37 
12  Table of ASCII Codes for Serial Communication (Protocol 3000)  38 
13  Hex Codes for Serial Communication (Protocol 2000)  39 
14  Kramer Protocol  40 
14.1  Switching Protocols  40 
14.2  Kramer Protocol 3000  40 
14.3  Kramer Protocol 2000  47 
VS-88DTP –  Contents    i 

Figures 
Figure 1: VS-88DTP 8x8 DVI - Twisted Pair Matrix Switcher Front Panel    6 
Figure 2: VS-88DTP 8x8 DVI - Twisted Pair Matrix Switcher Rear Panel 
Figure 3: Connecting the VS-88DTP 8x8 DVI - Twisted Pair Matrix Switcher 
Figure 4: RS-485 DIP-switches 
Figure 5: RS-485 Termination DIP-switch 
Figure 6: Control of Multiple VS-88DTP Devices via RS-232 and RS-485 
Figure 7: Local Area Connection Properties Window 
Figure 8: Internet Protocol (TCP/IP) Properties Window 
Figure 9: Preset Number Assignments using the Selector Buttons 
Figure 10: Java Test Page Success Message 
Figure 11: Entering the IP Number in the Address Bar 
Figure 12: The Loading Page 
Figure 13: First Time Security Warning 
Figure 14: Main Switching Matrix Page 
Figure 15: Selecting a Switching Point on the Matrix 
Figure 16: Switching in the Offline Mode 
Figure 17: Selecting Preset 07 
Figure 18: Selecting Preset 03 
Figure 19: Recalling a Preset in Offline Mode 
Figure 20: Configuration Page
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ii  VS-88DTP - 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 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-88DTP 8x8 DVI - Twisted Pair 
Matrix Switcher, which is ideal for the following typical applications: 
• Conference room presentations 
• Advertising  
• Rental and staging 
VS-88DTP - Introduction  1 

2  Getting Started 
We recommend 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 
•  Use Kramer high performance high resolution cables 
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 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 VS-88DTP away from moisture, excessive sunlight and 
dust 
2.2  Safety Instructions 
Caution:  There are no operator-serviceable parts inside the unit 
Warning: 
Warning: 
You use only the power cord that is supplied with the 
unit. Do not open the unit. High voltages can cause 
electrical shock! Servicing by qualified personnel only. 
Disconnect the power and unplug the unit from the wall 
before installing 
2  VS-88DTP - Getting Started