Kramer VM-51 Manuel utilisateur

KRAMER ELECTRONICS LTD.

USER MANUAL

MODEL:

VM-51

1:5 Video Distributor

P/N: 2900-001036 Rev 2

VM-51 – 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-51 1:5 Video Distributor 4

4Connecting the VM-51 6

5Technical Specifications 7

Figures

Figure 1: VM-51 1:5 Video Distributor 4

Figure 2: Connecting the VM-51 1:5 Video Distributor 6

VM-51 - 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-51 1:5 Video Distributor, which is

ideal for the following typical applications:

Video duplication studios, delivering high-quality video duplicates

Retail stores and other point-of-sale systems requiring an identical picture on

several monitors

Field and CCTV video distribution needs

VM-51 - 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-51 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-51 - 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-51 - Overview

3 Overview

The VM−51 is a high−performance distribution amplifier for composite or SDI

video signals. It takes one input, provides correct buffering and isolation and

distributes the signal to five identical outputs.

The VM-51 features:

High bandwidth of 420MHz (−3dB)

Level (gain) and EQ (peaking) controls

Compact size, part of the Kramer TOOLS™ family of compact, high−quality

and cost−effective solutions

3.1 Defining the VM-51 1:5 Video Distributor

This section defines the VM-51.

Figure 1: VM-51 1:5 Video Distributor

VM-51 - Overview

Feature

Function

OUT BNC connectors

Connects to the video acceptors (up to 5)

INPUT BNC connector

Connects to the video source

Gain Trimmer

Adjusts the video signal level (using a small screwdriver)

EQ. Trimmer

Adjusts the video EQ. (equalization) compensation

ON LED

Illuminates when receiving power

12V DC

+12V DC connector for powering the unit

VM-51 - Connecting the VM-51

4 Connecting the VM-51

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

VM-51. After connecting your VM-51, connect its power and then

switch on the power to each device.

To connect the VM-51 as illustrated in the example in Figure 2:

1. Connect a composite video source (for example, a CV player) to the video

INPUT BNC connector.

2. Connect up to 5 video output BNC connectors to the appropriate video

acceptors (for example, CV displays).

Not all outputs need to be connected.

3. Connect the power adapter to the power socket and connect the adapter to

the mains electricity.

4. Adjust, if required, the output signal level (Gain) and/or the equalization level

(EQ.).

Figure 2: Connecting the VM-51 1:5 Video Distributor

VM-51 - Technical Specifications

5 Technical Specifications

INPUTS:

1 composite video, 1Vpp/75Ω on a BNC connector

OUTPUTS:

5 composite video, 1Vpp/75Ω on BNC connectors

MAX. OUTPUT LEVEL:

2.3Vpp /75Ω

BANDWIDTH (-3dB):

360MHz

DIFF. GAIN:

0.05%

DIFF. PHASE:

0.07deg

K-FACTOR:

<0.05%

S/N RATIO:

73dB

CONTROLS:

Level: -0.9 to +1.9dB, EQ.: 0 to +4.5dB @ 5.8MHz

COUPLING:

POWER CONSUMPTION:

12V DC, 80mA.

OPERATING TEMPERATURE:

0° to +40°C (32° to 104°F)

STORAGE TEMPERATURE:

-40° to +70°C (-40° to 158°F)

HUMIDITY:

10% to 90%, RHL non-condensing

DIMENSIONS:

9.9cm x 4.7cm x 2.4cm (3.9” x 1.85” x 0.94”) W, D, H

WEIGHT:

0.2 kg (0.44 lbs) approx.

ACCESSORIES:

Power supply, mounting brackets

Specifications are subject to change without notice at http://www.kramerelectronics.com

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