Kramer 104LN Manuale utente
KRAMER ELECTRONICS LTD.
USER MANUAL
MODEL:
104LN
1:4 Differential Video Line
Amplifier
P/N: 2900-701141 Rev 5
104LN – Contents
i
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 104LN 1:4 Differential Video Line Amplifier 5
4Connecting the 104LN 7
5Technical Specifications 9
Figures
Figure 1: 104LN 1:4 Differential Video Line Amplifier 5
Figure 2: 104LN 1:4 Differential Video Line Amplifier (Underside) 6
Figure 3: Connecting the 104LN 1:4 Differential Video Line Amplifier 8
104LN - 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 104LN 1:4 Differential Video Line
Amplifier, which is ideal for the following typical applications:
Any system requiring a compact distribution amplifier and line driver
Rental and staging applications
2
104LN - 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 104LN 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.
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!
104LN - Getting Started
3
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/.
!
4
104LN - Overview
3 Overview
The 104LN is a high-performance distribution amplifier and line driver for
composite and SDI video signals.
The 104LN 1:4 Differential Video Line Amplifier features:
One composite video input and 4 identical buffered outputs
Recessed gain and EQ. (equalization) trimmer controls that compensate for
signal losses inherent in long cable runs
Differential input that eliminates common mode noise picked up by the input
cable, and supports long cables (letting you locate it anywhere in the
distribution chain)
Bandwidth exceeding 400MHz, ensuring transparency in the most critical
applications
Full DC coupling, ensuring signal linearity and flatness
104LN - Overview
5
3.1 Defining the 104LN 1:4 Differential Video Line Amplifier
This section defines the 104LN.
Figure 1: 104LN 1:4 Differential Video Line Amplifier
#
Feature
Function
1
INPUT BNC Connector
Connects to the composite video source
2
OUT 1 BNC Connector
Connects to composite video acceptor 1
3
OUT 2 BNC Connector
Connects to composite video acceptor 2
4
OUT 3 BNC Connector
Connects to composite video acceptor 3
5
OUT 4 BNC Connector
Connects to composite video acceptor 4
6
12V DC
+12V DC connector for powering the unit
7
LEVEL Trimmer
Adjusts the output signal level for outputs 1, 2, 3 and 4
Insert a screwdriver into the hole and carefully rotate it, to trim the
level
8
EQ. Trimmer
Adjusts the cable compensation equalization level
9
ON LED
Illuminates when receiving power
6
104LN - Overview
Figure 2 illustrates the INPUT GROUND switch:
Figure 2: 104LN 1:4 Differential Video Line Amplifier (Underside)
By default, the INPUT GROUND switch is set to FLOAT (the input signal is
isolated from the chassis). If the image appears noisy, set the switch to ON (the
input signal is grounded to the chassis).
104LN - Connecting the 104LN
7
4 Connecting the 104LN
Always switch off the power to each device before connecting it to your
104LN. After connecting your 104LN, connect its power and then
switch on the power to each device.
To connect the 104LN 1:4 Differential Video Line Amplifier, as the example in
Figure 3 illustrates, connect the following:
1. Connect a composite video source (for example, a satellite decoder and
receiver) to the INPUT BNC connector.
2. Connect the four OUT BNC connectors to up to four composite video
acceptors, as follows:
Connect the OUT 1 connector to video acceptor 1 (for example,
a video recorder)
Connect the OUT 2 connector to video acceptor 2 (for example,
a video display)
Connect the OUT 3 connector to video acceptor 3 (for example,
a video display)
Connect the OUT 4 connector to video acceptor 4 (for example,
a video display)
3. Adjust the output signal level and/or cable compensation equalization level,
if required.
4. If the image appears noisy, set the INPUT GROUND to either ON or FLOAT
to lower the noise level.
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