R tron SN CDMA 23 User Manual
CDMA MINI
(RSN-CDMA-23)
User’s Manual
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Notice
Trademark
R-tron is a registered trademark of R-tron Inc.
Other products and company names mentioned here in this manual might be trademarks or trade
names of their respective owners.
Copyright
Copyright © R-tron Inc. 2000-2009
All Rights Reserved
Any reproduction, distribution, or revisions of any or all portions of this manual is prohibited
without written permission from R-tron Inc.
Notice
This document describes the specifications, installation, and operation of the CDMA repeater.
Hardware and software mentioned in this document are subject to continuous development and
improvement. Consequently, there may be minor discrepancies between the information in the
document, performance, and design of the product.
Specifications, dimensions, and other statements mentioned in this document are subject to
change without notice.
Questions or Comments
Address: R-tron Inc. 6402 College Boulevard, Overland Park, KS 66211
Phone: +1-913-344-9977, 1-888-31R-TRON
Fax: +1-913-344-9988
e-mail: info@r-tron.com
Website: www.r-tron.com
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Safety Precautions
Opening the CDMA equipment could result in electric shock and may cause severe injury.
Connect the equipment frame ground to building ground.
Operating the CDMA with antennas in very close proximity facing each other could lead to severe
damage to the repeater.
RF EXPOSURE INFORMATION
A minimum separation distance of 7.9 inches (20cm) must be maintained between the user and
the external antenna of repeater to satisfy FCC RF exposure requirements. For more information
about RF exposure, please visit the FCC website at www.fcc.gov
This equipment is for indoor use only and enables the communication wiring to communicate
only inside the building.
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Glossary
The following is a list of abbreviations and terms used in this manual.
Abbreviation Definition
AC Alternating Current
ANT Antenna
ATT Attenuator / Attenuation
CDMA Code Division Multiple Access
DC Direct Current
DL Downlink
GND Grounding
GUI Graphic User Interface
LED Light Emitting Diode
PLL Phase-locked loop
PSU Power Supply Unit
RF Radio Frequency
RSSI Received Signal Strength Indication
TEMP Temperature
UL Uplink
VSWR Voltage Standing Wave Ratio
ALC (Automatic Level Control)
ALC feature prevents the repeater from exceeding its maximum output power by reducing the gain
automatically. ALC is used to adjust the gain to an appropriate level for a range of input signal levels.
ASD (Automatic Shutdown)
Automatic shut down protects the repeater from the oscillation or excessive input signal and
eliminates any degradation to the network.
There are three parameters: ASD Level, ASD Time, and ASD Iteration.
If the output power gets higher than “ASD LEVEL”, the repeater will shut down for “ASD TIME”
seconds and then it will turn the amp back on to measure the output power again. If this repeats at
“Iteration” times, the repeater will shut down completely.
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1. Introduction
CDMA MINI is used to fill out areas in CDMA mobile systems, such as base station fringe areas,
business and industrial building, etc.
CDMA MINI receives signals from a base station, amplifies and retransmits the signals to mobile
stations. Also it receives, amplifies and retransmits signals in the opposite direction. Both
directions are served simultaneously with the following features:
Server
antenna
CDMA’s Key Features
♦ Programmable Bandwidth and Band
» 5, 10, and 15 MHz contiguous and non-contiguous segments
» Any Band Combination within 65MHz PCS Band [A,D,B,E,F,C,G]
» Two (2) 5MHz segments
♦ Easy and Quick Installation
» Web-based GUI
» Plug and Play - DHCP Server @ Local Port
» Automatic Easy Setup (Recommended)
» Isolation Detection
♦ Auto Level Control & Auto Shut Down
Donor
antenna
Base
Station
- CDMA MINI utilizes the web-based user interface and web server. There is one physical RJ-45
port:
• The Local port provides the on-site access to the repeater.
- DHCP server at the Local port enables Plug and Play by automatically assigning the IP address
to the user’s computer.
• Easy Setup has the following features.
-It will measure the isolation and limit the maximum gain accordingly. This will also enable Auto
Level Control as well as Auto Shut Down. These two features are strongly recommended to
prevent the uncontrolled power output, which could have an adverse impact on the RF network
and the repeater. For example, ALC will automatically apply attenuation when the input signal
strength is increased due to the new base station deployment near the repeater site.
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