Kramer Electronics VS-4228 User Manual

KRAMER ELECTRONICS LTD.
USER MANUAL
MODEL:
VS-4228
8-Port
P/N: 2900-002033 Rev 4
RS-422 Matrix Switcher
Contents
1 Introduction 1 2 Getting Started 2
2.1 Achieving the Best Performance 2
3 Overview 3
3.1 Defining the VS-4228 8-Port RS-422 Matrix Switcher 3
3.2 About RS-422 6
4 Connecting the VS-4228 9
4.1 Connecting a PC or Controller to the RS-232 Port 10
4.2 Connecting a PC or Controller to the RS-485 Port 11
4.3 Cascading Multiple Units 11
5 Operating the VS-4228 14 6 Technical Specifications 16 7 Default Communication Parameters 17 8 Hex Codes 18
Figures
UFigure 1: VS-4228 8-Por t RS-422 Matrix Switcher Front PanelU 4 UFigure 2: VS-4228 8-Por t RS-422 Matrix Switcher Rear PanelU 5 UFigure 3: Bi-directional Signals IU 6 UFigure 4: Bi-directional Signals IIU 6 UFigure 5: Connecting the VS-4228 8-Port RS-422 Matrix SwitcherU 9 UFigure 6: Crossed Cable RS-232 ConnectionU 10 UFigure 7: Straight Cable RS-232 Connection with a Null Modem AdapterU 10 UFigure 8: Cascading Units via the RS-232 Control InterfaceU 12 UFigure 9: Cascading Units via the RS-485 Control InterfaceU 13
VS-4228 – 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 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 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 and GROUP 11: Sierra Products.
Congratulations on purchasing your Kramer VS-4228 8-Port RS-422 Matrix Switcher, which is ideal for the following typical applications:
Remote control of video and audio production studios
Live broadcast remote control
CCTV and other remote control applications
VS-4228 - Introduction 1
i

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 Use only the power cord that is supplied with this machine
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-4228 away from moisture, excessive sunlight and
dust
2 VS-4228 - Getting Started
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