
ASKING FOR ASSISTANCE
Rev B1
Technical Support:
Telephone (818) 772-9100
(800) 545-6900
Fax (818) 772-9120
Technical Support Hours:
8:00 AM to 5:00 PM (PST) Monday thru Friday.
Write To:
Gefen, LLC
c/o Customer Service
20600 Nordhoff St
Chatsworth, CA 91311
www.gefen.com
support@gefen.com
Notice
Gefen, LLC reserves the right to make changes in the hard ware, packaging and
any accompanying doc u men ta tion without prior written notice.
USB 2.0 LR Extender is a trademark of Gefen, LLC
© 2010 Gefen, LLC, All Rights Reserved
All trademarks are the property of their respective companies

CONTENTS
1 Introduction
2 Operation Notes
3 Features
4 Sender Panel Layout
5 Sender Panel Descriptions
6 Receiver Panel Layout
7 Receiver Panel Descriptions
8 Connecting And Operating The USB 2.0 LR Extender
9 Troubleshooting
10 Network Cable Wiring Diagram
11 Wiring Diagram
12 Specifi cations
13 Warranty

1
Congratulations on your purchase of the USB 2.0 LR Extender. Your complete
satisfaction is very important to us.
Gefen
Gefen delivers innovative, progressive computer and electronics add-on solutions
that harness integration, extension, distribution and conversion technologies.
Gefen’s reliable, plug-and-play products supplement cross-platform computer
systems, professional audio/video environments and HDTV systems of all sizes
with hard-working solutions that are easy to implement and simple to operate.
The Gefen USB 2.0 LR Extender
Gefen’s USB 2.0 LR extends high-speed USB devices simply and reliably.
The compact USB 2.0 LR Sender/Receiver units install in minutes and fully
support all USB versions (V1.1 and V2.0), at speeds of up to 480 mbps
-- essential for high-performance applications such as digital imaging and
interactive gaming.
The two-port USB 2.0 LR hub is ideal for remotely accessing laser printers,
scanners, web cameras, external hard drives, CD/DVD burners, and fl ash
drives. Additional applications include security, industrial control, digital signage,
scientifi c data acquisition and much more due to the universal implementation of
USB standards.
How It Works
Gefen’s USB 2.0 LR supports all major operating systems -- Windows, MacOS
and Linux. No software drivers are required.
The combined length of all cables in the extension (including patch cables) can
be up to 330 feet (100m).
A powered USB hub may be connected to the USB 2.0 Extender LR Receiver
to allow more USB devices to be extended. A maximum of 14 USB devices
(including hubs) may be connected to the USB 2.0 LR Receiver.
INTRODUCTION

2
READ THESE NOTES BEFORE INSTALLING OR
OPERATING THE USB 2.0 LR EXTENDER
• Use industry standard CA T-5, CAT-5e or CAT-6. Gefen recommends using solid
core cabling for maximum performance.
• The USB 2.0 LR Extender is USB 2.0/1.1 compliant
• The USB 2.0 LR Extender can extend USB a maximum of 330 ft (100m)
• Use only the AC adapter supplied with the USB 2.0 LR Extender. Use of
substitute adapters may cause permanent damage to the system and will
void the warranty.
OPERATION NOTES