Kramer VM-2DH Manuale utente

KRAMER ELECTRONICS LTD.

USER MANUAL

MODEL:

VM-2DH

DisplayPort to DVI/HDMI

Converter

P/N: 2900-300264 Rev 3

VM-2DH – Contents i

Contents

1Introduction 1

2Getting Started 2

2.1 Achieving the Best Performance 2

2.2 Recycling Kramer Products 3

3Overview 4

3.1 Defining the VM-2DH DisplayPort to DVI/HDMI Converter 5

4Connecting the VM-2DH 6

4.1 Acquiring the EDID 7

5Technical Specifications 9

Figures

UFigure 1: VM-2DH DisplayPort to DVI/HDMI ConverterU5

UFigure 2: Connecting the VM-2DH DisplayPort to DVI/HDMI ConverterU6

VM-2DH - 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 video, audio, presentation, and broadcasting professionals

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 VM-2DH DisplayPort to DVI/HDMI

Converter, which is ideal for the following typical applications:

•Multiple screen applications

•Rental and staging

2 VM-2DH - Getting Started

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

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 (we recommend Kramer high-

performance, high-resolution 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 VM-2DH away from moisture, excessive sunlight and

dust

This equipment is to be used only inside a building. It may only be

connected to other equipment that is installed inside a building.

Caution: There are no operator serviceable parts inside the unit

Warning: Use only the Kramer Electronics input power wall

adapter that is provided with the unit

Warning: Disconnect the power and unplug the unit from the wall

before installing

VM-2DH - Getting Started 3

2.2 Recycling Kramer Products

The Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC

aims to reduce the amount of WEEE sent for disposal to landfill or incineration by

requiring it to be collected and recycled. To comply with the WEEE Directive,

Kramer Electronics has made arrangements with the European Advanced

Recycling Network (EARN) and will cover any costs of treatment, recycling and

recovery of waste Kramer Electronics branded equipment on arrival at the EARN

facility. For details of Kramer’s recycling arrangements in your particular country

go to our recycling pages at http://www.kramerelectronics.com/support/recycling/.

4 VM-2DH - Overview

3 Overview

The Kramer VM-2DH is a DisplayPort to DVI/HDMI converter and distributor for

digital signals that is HDCP (High-Bandwidth Digital Content Protection)

compatible. Since high-resolution DVI signals are very sensitive to cable quality

and to PCB layout, the VM-2DH uses a uniquely designed PCB which includes all

buffering, conditioning and amplifying circuitry to provide two high-level output

signals.

In particular, the VM-2DH features:

•Support for resolutions up to WUXGA, including all HDTV formats

•A maximum data rate of 4.95Gbps (1.65Gbps per graphic channel)

•The DDWG DVI 1.0 standard

•Support for up to eight embedded audio channels

•Built in re-clocking circuitry that regenerates the DVI/HDMI signal so that

several units may be cascaded

•A non-volatile read and store memory for the EDID (Extended Display

Identification Data) block from one of the outputs, so it can then provide the

EDID information to the DisplayPort source even if the display device is not

connected

•A default EDID for fast and efficient connection of the unit

•I-EDIDPro™ Kramer Intelligent EDID Processing™—intelligent EDID

handling and processing algorithm that ensures Plug and Play operation for

DVI/HDMI systems

•A DVI-I connector which is compatible with all types of DVI cables

•State-of-the-art line drivers on both outputs to provide a cost-effective

solution for distributing the TMDS signals used for DVI/HDMI

VM-2DH - Overview 5

3.1 Defining the VM-2DH DisplayPort to DVI/HDMI

Converter

This section defines the VM-2DH.

Figure 1: VM-2DH DisplayPort to DVI/HDMI Converter

# Feature Function

1 EDID SETUP Button Press to cycle through the EDID sources and to

read the EDID (see Section 4.1

2 )

IN LED Lights green when the input is active; flashes when

the input is not valid

3 OUT DVI LED Lights green when a DVI acceptor output is

connected

4 OUT HDMI LED Lights green when an HDMI acceptor is connected

5 ON LED Lights green when the unit is powered on

6 DP IN DisplayPort Connector Connect to the DisplayPort digital source

7 DVI OUT Connector Connect to the DVI acceptor

8 HDMI OUT Connector Connect to the HDMI acceptor

9 5V DC Connect to the 5V DC power adapter, center pin

positive

6 VM-2DH - Connecting the VM-2DH

4 Connecting the VM-2DH

Always switch off the power to each device before connecting it to your

VM-2DH. After connecting your VM-2DH, connect its power and then

switch on the power to each device.

To connect the VM-2DH as illustrated in the example in Figure 2:

1. Connect a computer graphics DisplayPort source to the DP IN connector.

2. Connect the DVI OUT connector to the DVI projector.

3. Connect the HDMI OUT connector to the plasma display.

4. Connect the supplied 5V DC power adapter to the VM-2DH and to the mains

electricity.

5. Optional—acquire the EDID (see Section 4.1

Figure 2: Connecting the VM-2DH DisplayPort to DVI/HDMI Converter

VM-2DH - Connecting the VM-2DH 7

4.1 Acquiring the EDID

Initially the VM-2DH operates with the factory default EDID stored in the non-

volatile memory. The source reads the EDID from the device when the device is

plugged in or powered on.

This is usually done only once when the unit is being set up in an installation. Once acquired,

the EDID is saved in non-volatile memory and further acquisition is not necessary.

The VM-2DH reads the EDID, which is stored in the non-volatile memory

The VM-2DH provides the ability to acquire the EDID from:

•One output (the relevant output LED lights)

•Two connected outputs in Auto-Mix mode (both output LEDs are lit)

The EDID acquired is a weighted average of all the connected outputs. For example, if

several displays with different resolutions are connected to the outputs, the acquired

EDID supports all the resolutions, as well as other parameters included in the EDID.

•The initial, default EDID (both output LEDs flash)

Pressing the EDID button briefly causes the output LEDs to indicate the source of

the EDID that was last acquired. If the:

•HDMI OUT LED lights, the HDMI OUT EDID was stored

•DVI OUT LED lights, the DVI OUT EDID was stored

•Both OUT LEDs light, the Auto-Mix EDID was stored

•Both OUT LEDs flash, the default EDID is stored

To acquire the EDID:

1. Connect the power.

2. Connect the output(s) from which you want to acquire the EDID.

3. Press and hold the EDID button to select the desired EDID source.

The OUTPUT LEDs light in the following cycle:

HDMI OUT

DVI OUT

Both LEDS (Auto-Mix)

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