Kramer VM-4HDCP Manuale utente

Kramer Electronics, Ltd.

Preliminary

USER MANUAL

Model:

VM-4HDCP

1:4 DVI Distributor

Contents

1Introduction 1

2Getting Started 1

2.1 Quick Start 2

3Overview 3

3.1 About HDCP 4

3.2 Defining EDID 4

3.3 Recommendations for Best Performance 4

4Your VM-4HDCP 1:4 DVI Distributor 4

5Installing the VM-4HDCP in a Rack 7

6Connecting a VM-4HDCP 1:4 DVI Distributor 8

6.1 Acquiring EDID 9

6.1.1 Acquiring the EDID from a Selected Output 9

6.1.2 Restoring the Default EDID 10

7Technical Specifications 10

Figures

Figure 1: VM-4HDCP 1:4 DVI Distributor 5

Figure 2: Connecting a VM-4HDCP 1:4 DVI Distributor 9

Tables

Table 1: Front Panel VM-4HDCP 1:4 DVI Distributor Features 6

Table 2: Rear Panel VM-4HDCP 1:4 DVI Distributor Features 6

Table 3: Technical Specifications of the VM-4HDCP 1:4 DVI Distributor 10

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 groups1

Thank you for purchasing your Kramer VM-4HDCP 1:4 DVI Distributor.

The VM-4HDCP is ideal for:

that are clearly

defined by function.

•Multiple screen applications

•Rental and staging

Each package includes the following items:

•VM-4HDCP 1:4 DVI Distributor

•Power cord

•This user manual2

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 cables3

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;

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

2.1 Quick Start

This quick start chart summarizes the basic setup and operation steps.

Overview

3 Overview

The Kramer VM-4HDCP is an HDCP (High-Bandwidth Digital Content

Protection)1compatible 1:4 distribution amplifier for DVI-D (Digital)

signals2

In particular, the VM-4HDCP:

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

quality and to PCB layout, the VM-4HDCP uses a uniquely designed PCB

which includes all buffering, conditioning and amplifying circuitry to

provide four high-level output signals.

•Distributes signals having resolutions up to UXGA, including all

HDTV formats

•Has a bandwidth of 1.65GHz

•Supports the DDWG DVI 1.0 standard

•Consists of a built-in re-clocking block that re-generates the DVI

signal, so that several units may be cascaded

•Can read and store, in non-volatile memory, the EDID3

•Has I-EDIDPro™ Kramer Intelligent EDID Processing™,an

intelligent EDID handling and processing algorithm that ensures

Plug and Play operation for DVI systems

block from

one of the outputs, so it can then provide the EDID information to

the DVI source even if the display device is not connected

•Has five DVI-I connectors, which are compatible with all types of

DVI cables

•Is a cost-effective solution for distributing the TMDS signals used

for DVI, and uses state-of-the-art line drivers on each of the 4

outputs

The VM-4HDCP fits in one vertical space of a standard 19” professional

rack enclosure (1U).

1 Note that Kramer Electronics Limited is an HDCP Licensee, see http://www.digital-cp.com/list/

2 For HDMI applications, use the Kramer VM-4H (previously VM-4HDMI)

3 EDID is Extended Display Identification Data

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Your VM-4HDCP 1:4 DVI Distributor

3.1 About HDCP

The High-Bandwidth Digital Content Protection (HDCP) standard1

3.2 Defining EDID

, protects

digital video and audio signals transmitted over DVI or HDMI connections

between two HDCP-enabled devices to eliminate the reproduction of

copyrighted material. To protect copyright holders (such as movie studios)

from having their programs copied and shared, the HDCP standard provides

for the secure, encrypted transmission of digital signals.

The Extended Display Identification Data (EDID2

3.3 Recommendations for Best Performance

) is a data-structure,

provided by a display, to describe its capabilities to the source. The EDID

enables the VM-4HDCP to “know” what kind of monitor is connected to

the output. The EDID includes the manufacturer’s name, the product type,

the timing data supported by the display, the display size, luminance data

and (for digital displays only) the pixel mapping data.

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 VM-4HDCP away from moisture, excessive

sunlight and dust

4 Your VM-4HDCP 1:4 DVI Distributor

Figure 1 and Table 1 define the VM-4HDCP 1:4 DVI Distributor:

1 Developed by Intel

2 Defined by a standard published by the Video Electronics Standards Association (VESA)

Your VM-4HDCP 1:4 DVI Distributor

Figure 1: VM-4HDCP 1:4 DVI Distributor

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Your VM-4HDCP 1:4 DVI Distributor

Table 1: Front Panel VM-4HDCP 1:4 DVI Distributor Features

Feature

Function

1 POWER Switch Illuminated switch for turning the unit ON or OFF

2 ACTIVE LED Lights when the input is active; blinks when the input is not valid

3 EDID

READ Button Press to read the EDID of the selected display

4 SELECT Button Select the desired display for EDID information

5 OUTPUT LEDs 1, 2, 3 and 4 LEDs light when an output(s) is connected and active; LEDs blink

when selecting EDID (see section 6.1)

Table 2: Rear Panel VM-4HDCP 1:4 DVI Distributor Features

Feature

Function

6 INPUT DVI Connector Connects to the DVI source

7 OUTPUT DVI Connectors Connect to the DVI acceptors (from 1 to 4)

8 Power Connector with Fuse AC connector enabling power supply to the unit

Installing the VM-4HDCP in a Rack

5 Installing the VM-4HDCP in a Rack

This section provides instructions for rack mounting the unit.

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Connecting a VM-4HDCP 1:4 DVI Distributor

6 Connecting a VM-4HDCP 1:4 DVI Distributor

To connect the VM-4HDCP as illustrated in the example in Figure 2, do the

following:

1. Connect a DVI source (for example, a computer) to the INPUT connector.

2. Connect the 4 OUTPUT connectors1

OUTPUT 1 connector to DVI acceptor 1 (for example, a

projector)

to up to 4 DVI acceptors, as

follows:

OUTPUT 2 connector to DVI acceptor 2 (for example, a

display)

OUTPUT 3 connector to DVI acceptor 3 (for example, a

display)

OUTPUT 4 connector to DVI acceptor 4 (for example, a

display)

3. Connect the power cord to the mains electricity (not shown in Figure 2).

To use the VM-4HDCP, do the following:

1. Turn ON the POWER.

2. Acquire the EDID (see section 6.1).

1 Not all the outputs need to be connected

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