Kramer VP-23 User Manual

Kramer Electronics, Ltd.

USER MANUAL

Model:

VP-23

Presentation Switcher

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Contents

i

Contents

1

Introduction 1

2

Getting Started 1

3

Overview 1

4

Your VP-23 Presentation Switcher 2

5

Connecting the VP-23 Presentation Switcher 5

5.1

Connecting a PC 5

5.2

Dipswitch Settings 6

6

Operating the Presentation Switcher 7

6.1

Operating your Switcher 7

7

Technical Specifications 8

8

VP-23 Communication Protocol 9

Figures

Figure 1: VP-23 Presentation Switcher 3
Figure 2: Connecting a PC without using a Null-modem Adapter 6

Tables

Table 1: Front Panel VP-23 Presentation Switcher Features 4
Table 2: Rear Panel VP-23 Presentation Switcher Features 4
Table 3: Dipswitch Settings 6
Table 4: Technical Specifications of the VP-23 Presentation Switcher 8
Table 5: Protocol Definitions 9
Table 6: Instruction Codes 10
Table 7: Video and Audio Switch Commands (HEX) 11
Table 8: Audio Switch Commands (HEX) 11

Introduction

1

1 Introduction

Welcome to Kramer Electronics (since 1981): a world of unique, creative and
affordable solutions to the infinite range of problems that confront the video,
audio and presentation professional on a daily basis. In recent years, we have
redesigned and upgraded most of our line, making the best even better! Our
350-plus different models now appear in 8 Groups1, which are clearly defined
by function. Congratulations on purchasing your Kramer VP-23 Presentation
Switcher. This product is ideal for the following typical applications:

 Presentation and conference room systems
 Production studios, as well as rental and staging

The package includes the following items:

 VP-23 Presentation Switcher
 Power cord and Null-modem adapter
 Windows®-based Kramer control software2
 This user manual3

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 cables4

3 Overview

The VP-23 is a high quality presentation switcher designed for a wide variety
of presentation and multimedia applications. The VP-23 combines the
functions of a 4x1 switcher for composite video and audio, a 4x1 switcher for
s-Video and audio, and a 4x1 switcher for VGA type signals with audio. In
addition the VP-23:

 Is a one box high performance solution for installations that would

1 GROUP 1: Distribution Amplifiers; GROUP 2: Video and Audio Switchers, Matrix Switchers and Controllers; GROUP 3:
Video, Audio, VGA/XGA Processors; GROUP 4: Interfaces and Sync Processors; GROUP 5: Twisted Pair Interfaces;
GROUP 6: Accessories and Rack Adapters; GROUP 7: Scan Converters and Scalers; and GROUP 8: Cables and Connectors
2 Downloadable from our Web site at http://www.kramerelectronics.com
3 Download up-to-date Kramer user manuals from our Web site at http://www.kramerelectronics.com
4 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Your VP-23 Presentation Switcher

2

otherwise require several separate products

 Is designed so that each section is controllable independently from the

other sections

 Is controllable via the front panel buttons or by RS-232 serial commands

transmitted by a touch screen system, PC, or other serial controller

 Includes an additional audio switching section that routes one of the
pre-selected audio inputs from the other switching sections to a separate
output

 Enables the switching section to insert an additional microphone channel
by switching, mixing, or talk-over

 Includes 16 selector switches and front panel control adjusters for
VGA/XGA output level and EQ., master audio output level and microphone
level

Achieving the best performance means:

 Connecting only good quality connection cables, thus avoiding
interference, deterioration in signal quality due to poor matching, and elevated
noise levels (often associated with low quality cables)

 Avoiding interference from neighboring electrical appliances and
positioning your VP-23 away from moisture, excessive sunlight and dust

4 Your VP-23 Presentation Switcher

Figure 1 illustrates the front and rear panels of the VP-23. Tables 1 and 2
define the front and rear panels of the VP-23, respectively.

Your VP-23 Presentation Switcher

3

Figure 1: VP-23 Presentation Switcher