Kramer VM-4H User Manual
Kramer Electronics, Ltd.
USER MANUAL
Model:
VM-4H
1:4 HDMI Distributor
Contents
i
Contents
1 Introduction 1
2 Getting Started 1
2.1 Quick Start 2
3 Overview 3
3.1 About HDMI 3
3.2 Defining EDID 4
3.3 Recommendations for Best Performance 5
4 Your VM-4H 1:4 HDMI Distributor 5
5 Installing the VM-4H on a Rack 7
6 Connecting a VM-4H 1:4 HDMI Distributor 8
7 Acquiring the EDID 9
7.1 The Simple Operation State 9
7.2 The Normal Operation State 10
7.2.1 Acquiring the EDID from a Selected Output 10
7.2.2 Restoring the Default EDID 10
7.2.3 Acquiring the Auto EDID 10
8 Technical Specifications 11
Figures
Figure 1: VM-4H 1:4 HDMI Distributor 6
Figure 2: Connecting a VM-4H 1:4 HDMI Distributor 9
Tables
Table 1: VM-4H 1:4 HDMI Distributor Features 7
Table 2: Technical Specifications of the VM-4H 1:4 HDMI Distributor 11
Introduction
1
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
1
that are clearly
defined by function.
Thank you for purchasing your Kramer VM-4H 1:4 HDMI Distributor.
The VM-4H is ideal for:
• Home theater, presentation and multimedia applications
• Rental and staging
Note, that the Kramer VM-4H is identical to the VM-4HDMI; just the
name has changed replacing the suffix “HDMI” by “H” (according to
the HDMI Guideline).
The package includes the following items:
• VM-4H 1:4 HDMI Distributor
• Power cord and rack “ears”
• This user manual
2
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
3
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; G ROUP 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 Download up-to-date Kramer user manuals from our Web site at http://www.kramerelectronics.com
3 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Getting Started
2
2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.
Overview
3
3 Overview
The Kramer VM-4H is a high quality 1:4 HDMI distributor that accepts an
HDMI input and distributes the signal to four outputs, allowing one or more
of the outputs to be connected to receiving devices, thus making it a
versatile, reliable component in a video system. The VM-4H distributes
signals having resolutions up to UXGA, including all HDTV formats.
In particular, the VM-4H:
• Supports up to 2.25Gbps bandwidth per graphic channel
1
• Equalizes and reclocks the data
• Has I-EDIDPro™ Kramer Intelligent EDID Processing™, an
intelligent EDID handling and processing algorithm that ensures
Plug and Play operation for HDMI systems
• Can read and store, in non-volatile memory, the EDID
2
block
from one or more outputs, so it can then provide the EDID
information to the HDMI source even if the display device is not
connected
• Includes five HDMI connectors, four output status LEDs, an
active status LED, as well as EDID read and select buttons
The VM-4H is housed in a 19" 1U rack-mountable enclosure, and is fed
from a 100-264V AC universal switching power supply.
3.1 About HDMI
High-Definition Multimedia Interface (HDMI) is an unco
mpressed all-digital
3
audio/video interface, widely supported in the entertainment and home
cinema industry. It delivers the highest high-definition im age and sound
quality.
1 Suitable for resolutions up to UXGA at 60Hz, and for all HD resolutions
2 EDID is Extended Display Identification Data
3 Ensuring an all-digital rendering of video without the losses ass ociated with analog interf aces and their unnecess ary digitalto-analog conversions
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