Kramer VM-24HC User manual

KRAMER ELECTRONICS LTD.

USER MANUAL

MODEL:

VM-24HC

2Input 1:4 HDMI Distributor

P/N: 2900-000717 Rev 3

VM-24HC – Contents

Contents

1Introduction 1

2Getting Started 2

2.1 Achieving the Best Performance 2

2.2 Safety Instructions 3

2.3 Recycling Kramer Products 3

3Overview 4

3.1 Defining the VM-24HC 2 Input 1:4 HDMI Distributor 5

4Connecting the VM-24HC 6

5Using the VM-24HC 2 Input 1:4 HDMI Distributor 8

5.1 Selecting an Active Input 8

5.2 Connecting a PC/Controller via RS-232 8

5.3 Acquiring the EDID 9

6Technical Specifications 11

7Default Communication Parameters 12

8Default EDID 13

9Protocol 2000 15

9.1 Syntax 15

9.2 Instruction Codes 16

Figures

Figure 1: VM-24HC 2 Input 1:4 HDMI Distributor 5

Figure 2: Connecting the VM-24HC 2 Input 1:4 HDMI Distributor 7

VM-24HC - 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 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-24HC 2Input 1:4 HDMI

Distributor, which is ideal for the following typical applications:

Home theater, presentation and multimedia applications

Rental and staging

VM-24HC - 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/support/product_downloads.asp

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-24HC 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.

VM-24HC - Getting Started

2.2 Safety Instructions

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

2.3 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/.

VM-24HC - Overview

3 Overview

The VM−24HC is a high−performance switcher and distribution amplifier for HDMI

signals. The unit accepts one of two HDMI inputs and distributes the selected

signal to four HDMI outputs simultaneously.

The VM-24HC features:

A maximum data rate of 6.75Gbps (2.25Gbps per graphics channel)

HDTV compatibility

HDCP compliance

I-EDIDPro™ Kramer Intelligent EDID Processing™, an intelligent EDID

handling & processing algorithm ensures Plug and Play operation for HDMI

systems

EDID handling that acquires the EDID from one output, from all connected

outputs (auto−mix) or uses a default EDID

Kramer Equalization & re-Klocking™ Technology that rebuilds the digital

signal to travel longer distances

HDMI support for Deep Color, x.v.Color™, up to 7.1 Uncompressed Audio

Channels

3D Pass-Through

Flexible control options via front panel, IR remote & RS−232

Compact desktop size where two units can be rack mounted side−by−side in

a 1U rack space with the optional RK−1 adapter

VM-24HC - Overview

3.1 Defining the VM-24HC 2 Input 1:4 HDMI Distributor

This section defines the VM-24HC.

Figure 1: VM-24HC 2 Input 1:4 HDMI Distributor

Feature

Function

IR Receiver

IR signal sensor for the IR remote control

IR LED

Lights yellow when the device receives an IR signal

POWER LED

Lights green when the device receives power

EDID READ Button

Press to acquire the EDID following selecting the EDID

source. Press again to indicate the EDID status

EDID SELECT Button

Press to select the EDID source (single output, Auto-

Mix or default)

OUTPUT LEDs (1 to 4)

Lights green when an output is connected and active.

LED flashes to indicate the source of the EDID

acquired (see Section 5.3) or when connecting a

non-HDCP display while providing HDCP content to

the VM-24HC

INPUT SELECTOR Button

Press to select Input 1 or 2 (see Section 5.1)

IN 1 LED

Lights green when Input 1 is selected

IN 2 LED

Lights green when Input 2 is selected

INPUT 1 and INPUT 2 HDMI

Connectors

Connect to the HDMI sources 1 and 2

OUTPUT 1 to OUTPUT 4

HDMI Connectors

Connect to the HDMI acceptors 1 to 4

RS-232 9-pin D-sub Port

Connects to a PC/remote controller (see Section 5.1)

5V DC Power Connector

Connects to the power adapter, center pin positive

VM-24HC - Connecting the VM-24HC

4 Connecting the VM-24HC

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

VM-24HC. After connecting your VM-24HC, connect its power and

then switch on the power to each device.

To connect the VM-24HC as illustrated in the example in Figure 2:

1. Connect the two HDMI sources, for example, a DVD player and a set top

box to the INPUT 1 and INPUT 2 connectors, respectively.

2. Connect the HDMI OUTPUT connectors to up to 4 HDMI acceptors. In this

example, connect:

Not all outputs need be connected.

OUTPUT 1 to display device 1 (for example, an LCD TV)

OUTPUT 2 to display device 2 (for example, an LCD TV)

OUTPUT 3 to display device 3 (for example, an LCD TV)

OUTPUT 4 to display device 4 (for example, a plasma display)

3. If required, connect a PC and/or controller to the RS-232 port (see

Section 5.1).

4. Connect the power adapter to the device and to the mains electricity (not

shown in Figure 2).

5. If required, acquire the EDID (see Section 5.3).

VM-24HC - Connecting the VM-24HC

Figure 2: Connecting the VM-24HC 2 Input 1:4 HDMI Distributor

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