Kramer VM-80VN Manuale utente

KRAMER ELECTRONICS LTD.

USER MANUAL

MODEL:

VM-80VN

1:8 Video Distributor

P/N: 2900-300446 Rev 2

VM-80VN – 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-80VN 1:8 Video Distributor 4

4Connecting the VM-80VN 6

5Technical Specifications 8

Figures

Figure 1: VM-80VN 1:8 Video Distributor 4

Figure 2: Connecting the VM-80VN 1:8 Video Distributor 7

VM-80VN - 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 14 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; GROUP 11:

Sierra Video Products; GROUP 12: Digital Signage; GROUP 13: Audio; and

GROUP 14: Collaboration.

Congratulations on purchasing your Kramer VM-80VN 1:8 Video Distributor, which

is ideal for the following typical applications:

Any professional AV system requiring high-quality signal distribution

Video production studios for source mastering

Specialized high resolution video and SDI distribution

Distribution of component video, RGBS, and other multi-channel formats

using multiple VM-80Vs operating in parallel

VM-80VN - 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-80VN 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-80VN - 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-80VN - Overview

3 Overview

The VM-80VN is a high−performance distribution amplifier for composite or SDI

signals. It can be configured as a 1:4 DA for s−Video (Y/C) signals and a 1:8 DA

for CV or SDI signals. It has controls to compensate for signal losses inherent in

long cable runs.

More specifically the VM-80VN features:

High bandwidth - 330MHz (−3dB)

Level (gain) and EQ (peaking) controls

Dual-mode that configure as either a 1:8 (composite) or 1:4 (s−Video) DA

Internally selectable video AC/DC Coupling

Companion unit to the VM-80A Audio DA

Desktop size where 2 units can be rack mounted side−by−side in a 1U rack

space with the optional RK−1 adapter

3.1 Defining the VM-80VN 1:8 Video Distributor

This section defines the VM-80VN.

Figure 1: VM-80VN 1:8 Video Distributor

VM-80VN - Overview

Feature

Function

POWER LED

Illuminates when the device is powered on

CH2 ADJ HF Trimmer

Adjusts the CH2 cable compensation equalization level

CH2 ADJ Level Trimmer

Adjusts the CH2 video gain level

CH1 ADJ HF Trimmer

Adjusts the CH1 cable compensation equalization level

CH1 ADJ Level Trimmer

Adjusts the CH1 video gain level

CH 1 IN BNC Connector

Connects to the CH1 video source

CH 1 IN 75ΩPushbutton

Press in for CH1 75Ω termination, release for no termination

1:8 Pushbutton

Press in for 1:8 operation, release for 1:4 operation

CH 2 IN BNC Connector

Connects to the CH2 video source

CH 2 IN 75 ΩPushbutton

Press in for CH2 75Ω termination, release for no termination

CH 1 OUT BNC Connector

Connects to the CH1 video acceptor(s) (from 1 to 4)

CH 2 OUT BNC Connector

Connects to the CH2 video acceptor(s) (from 1 to 4)

12V DC Connector

Connector for attaching the 12V DC power supply

VM-80VN - Connecting the VM-80VN

4 Connecting the VM-80VN

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

VM-80VN. After connecting your VM-80VN, connect its power and

then switch on the power to each device.

To connect the VM-80VN as illustrated in the example in Figure 2:

1. Connect up to two video sources (for example composite video players) to

the CH1 IN and CH2 IN BNC connectors of the VM-80VN.

2. Connect up to 8 acceptors to the CH 1 OUT (up to 4) and CH 2 OUT (up to

4) BNC connectors.

3. If a 1:8 operation is needed, press the rear button marked 1:8.

If not, release the button for 2x1:4 operation.

4. If looping is needed, release the 75Ω rear termination switch.

If looping is not needed, press the switch in to the 75Ω position.

5. If 1:8 operation is selected, one of the termination switches should always be

in the released state and the other according to looping requirements.

6. If necessary, adjust the trimmers on the front panel of the machine to

achieve best results.

Level: To compensate for the loss of brightness due to the attenuation of voltage levels

in long cable runs. Adjust while looking at the display device to achieve natural

brightness.

EQ: To compensate for the loss of sharpness due to the attenuation of high frequencies

in long cable runs. Adjust while looking at the display device for natural detail.

7. Connect a mains power source to the socket on the rear panel of the

VM-80VN.

8. Operate source, acceptors and the VM-80VN machine.

VM-80VN - Connecting the VM-80VN

Figure 2: Connecting the VM-80VN 1:8 Video Distributor

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