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USER MANUAL
MODEL:
RS-232 Extender
P/N: 2900-300284 Rev 1
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RS-232 Extender – Contents i
Contents
1 Introduction 1
2 Getting Started 2
2.1 Achieving the Best Performance 2
2.2 Safety Instructions 3
2.3 Recycling Kramer Products 3
3 Overview 4
3.1 Defining the RS-232 Extender 4
4 Connecting the RS-232 Extender 5
5 Technical Specifications 6
5.1 9-pin D-sub Pin Connections 6
Figures
UFigure 1: RS-232 Extender Connection DiagramU 5
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RS-232 Extender - 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 RS-232 Extender , which is ideal for
the following typical applications:
• Projection systems in conference rooms, boardrooms, auditoriums, hotels
and churches, production studios, rental and staging
• Any application where high quality conversion and switching of multiple and
different video signals to graphical data signals is required for projection
purposes
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2 RS-232 Extender - 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 RS-232 Extender 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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RS-232 Extender - 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/.
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4 RS-232 Extender - Overview
3 Overview
The RS-232 Extender extends control and remote access of any RS-232 device
by up to 1000m (3300ft). For example, use it to give remote access from a touch
screen, a presentation unit or to transfer data between computers.
In particular the RS-232 Extender features:
• A data rate of 57.6kbps up to 1000m (3300ft)
• Full-duplex communication
• Advanced CAT 5 technology
• A pure hardware solution – real time data transfer with no software conflicts
• Plug and Play installation, no extra protocols needed
• A 3-year warranty
3.1 Defining the RS-232 Extender
The RS-232 Extender system consists of:
• 1 local unit
• 1 remote unit
• 1 power adapter
This table defines the model:
Kramer Model Kramer Part
Number
Full Description
EXT-RS232
(OVS22013) 50-0001009011 Minicom RS232 EXTENDER
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RS-232 Extender - Connecting the RS-232 Extender 5
4 Connecting the RS-232 Extender
Always switch off the power to each device before connecting it to your
RS-232 Extender. After connecting your RS-232 Extender, connect
its power and then switch on the power to each device.
Note! In the RS-232 Extender system, the CAT 5 cables carry
electrical power. Do NOT connect them to any other device. To avoid
this, we recommend that you attach the stickers provided to the ends
of the CAT 5 cable.
Figure 1 illustrates the RS-232 Extender connections.
• Connect the local and remote RS-232 extender units to each other using a
CAT 5 cable.
• Up to 330m (1000ft), connect a power adapter to either the local or remote
RS-232 extender unit.
• For distances of more than 330m (1000ft) connect a power adapter to both
the local and remote RS- 232 extender units. Additional power adapters can
be ordered from Kramer.
Once connected, the RS-232 Extender system is ready to transmit RS-232
signals.
Figure 1: RS-232 Extender Connection Diagram
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6 RS-232 Extender - Technical Specifications
5 Technical Specifications
INPUTS: RS-232 on a 9-pin D-sub F connector (local unit)
CAT 5 on an RJ-45 connector (remote unit)
OUTPUTS: CAT 5 on an RJ-45 connector (local unit)
RS-232 on a 9-pin D-sub M connector (remote unit)
SYSTEM CABLE: CAT 5 UTP/FTP 2x4x24AWG solid wire cable
OPERATING TEMPERATURE: 0° to +40°C (32° to 104°F)
STORAGE TEMPERATURE: -40° to +70°C (-40° to 158°F)
HUMIDITY: 80% RHL non-condensing
DIMENSIONS: 75mm x 45mm x 25mm (3.0” x 1.8” x 1.0”)
WEIGHT: 120g
ACCESSORIES: 12V DC, 1A power supply
Specifications are subject to change without notice at http://www.kramerelectronics.com
5.1 9-pin D-sub Pin Connections
Pin Function
Pin 1 N/C
Pin 2 Receive data
Pin 3 Transmit data
Pin 4 Data terminal ready
Pin 5 Signal ground
Pin 6 Data set ready
Pin 7 Request to send
Pin 8 Clear to send
Pin 9 N/C
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For the latest information on our products and a list of Kramer distributors,
visit our Web site where updates to this user manual may be found.
We welcome your questions, comments, and feedback.
Web site:
E-mail:
www.kramerelectronics.com
info@kramerel.com
P/N:
2900-300284
Rev:
1
!
SAFETY WARNING
Disconnect the unit from the power
supply before opening and servicing
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