
Kramer Electronics, Ltd.
USER MANUAL
Model:
VS-121HC
12 x 1 Component Video Switcher / Transcoder

Contents
Contents
1 Introduction 1
2 Getting Started 1
2.1 Quick Start 2
3 Overview 3
4 Your VS-121HC Switcher / Transcoder 3
5 Installing the VS-121HC in a Rack 6
6 Connecting the VS-121HC Switcher/Transcoder 7
7 Operating the VS-121HC Switcher/Transcoder 8
7.1 Operating Using the Front Panel Buttons 9
7.2 Connecting to the VS-121HC via the RS-232 Port 9
7.2.1 Connecting the RS-232 Port 9
7.3 Operating via the RS-485 Port 10
7.3.1 Setting the Machi ne number 11
7.3.2 Setting the Line Termination 11
7.4 Operating via the ETHERNET Port 12
7.4.1 Connecting the ETHERNET Port directly to a PC (Crossover Cable) 12
7.4.2 Connecting the ETHERNET Port via a Network Hub (Straight-Through Cable) 13
7.4.3 Configuring the Ethernet Port 13
7.5 Operating via the Infrared Remote Controller 14
7.6 Setting the DIP-switches 14
7.7 Operating the VS-121HC in Tandem with the VS-121HCA 16
8 Technical Specifications 17
9 Upgrading the VS-121HC Firmware 18
9.1 Upgrading the Device Firmware 18
9.1.1 Downloading from the Internet 18
9.1.2 Connecting a PC to the RS-232 Port 18
9.1.3 Installing the Device Fir mware 19
9.2 Upgrading the Ethernet Firmware 23
9.2.1 Downloading from the Internet 24
9.2.2 Connecting the PC to the RS-232 Port 24
9.2.3 Installing the Ethernet Firmware 24
10 Hex Table 25
11 Kramer Protocol 2000 26

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Contents
Figures
Figure 1: VS-121HC 12 x 1 Component Video Switcher / Transcoder 4
Figure 2: Connecting the VS-121HC Switcher / Transcoder 8
Figure 3: Crossed Cable RS-232 Connecti on 10
Figure 4: Straight Cable RS-232 Connection with a Null Modem Adapter 10
Figure 5: Master/Slave Configuration 11
Figure 6: Local Area Connection Properties Window 12
Figure 7: Internet Protocol (TCP/IP) Properties Window 13
Figure 8: Product DIP-switches 14
Figure 9: Operating the VS-121HC in Tandem with the VS-121HCA 16
Figure 10: Splash Scr een 19
Figure 11: Atmel – Flip Window 20
Figure 12: Device Selection Window 20
Figure 13: Device Selection Window 21
Figure 14: Loading the Hex 21
Figure 15: RS-232 Window 22
Figure 16: Atmel – Flip Window (Connected) 22
Figure 17: Atmel – Flip Window (Operation Completed) 23
Figure 18: The KFR-Programmer Window 24
Tables
Table 1: VS-121HC Front Panel Features 5
Table 2: VS-121HC Rear Panel Features 5
Table 3: DIP-switch Settings 14
Table 4: Machine Number DIP-switch Settings 15
Table 5: VS-121HC Technical Specifications 17
Table 6: Communication Parameters 17
Table 7: VS-121HC Hex Table 25
Table 8: Protocol Definitions 26
Table 9: Instruction Codes 27

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
defined b y function.
Thank you for purchasing the Kramer VS-121HC 12 x 1 Component Video
Switcher / Transcoder. This product is ideal for the following typical
applications:
• Home cinema
• Presentation and conference rooms, board rooms and auditoriums
• Productio n s tudios, rental and staging
The package includes the following items:
• VS-121HC 12 x 1 Component Video Switcher / Transcoder
2
• Power cord
, Null-modem adapter and rack ears
• Windows®-based Kramer control software
• RC-IR2 infrared remote control transmitter (including the required
battery and a separate user manual
4
• This user ma nual
4
)
1
3
that are clearly
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 t his user manual
• Use Kramer high performance high-resolution cables
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; GR OUP 7:
Scan Converters and Scalers; GROUP 8: Cables and Connectors; GROUP 9: Room Conne ctivity; GROUP 10: Accessories
and Rack Adapters; GROUP 11: Sierra Products
2 We recommend that you use only the power cord supplied with this device
3 Downloadable from our Web site at
4 Download up-to-date Kramer user manuals from our Web site:
5 The complete list of Kramer cables is on our Web site at
http://www.kramerelectronics.com
http://www.kramerelectronics.com
http://www.kramerelectronics.com
5