Remotek R84DLI-W19L17-2S User manual

Dual Band ICS Repeater
User’s Manual
This document applies to:
R84DLI-W19L17-2S
R84DLI-W21L26-2S

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Dual Band ICS Repeater User Manual
© 2019 Remotek Corporation
All rights reserved
Remotek® is a registered trademark of Remotek Corporation.
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Copyright Information
No part of this document may be reproduced or transmitted in any form or by any means, electronic or
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conjunction with the products described herein.
Information in this document is subject to change without notice. Remotek assumes no liability for omissions or
inaccuracies in this document, or from the furnishing or use of the information herein. Remotek reserves the right
to make changes to any products described herein and does not assume any liability arising out of the
applications or use of any product described herein.
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by Remotek to its customers pursuant to a contract for the purchase of the products described herein. If the
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Contact
Remotek Corporation
Address: 22F~2, No. 97,
Sec.1, Hsin Tai Wu Rd.,
Hsi-Chih, Taipei, Taiwan. 221.
Tel: [phone]
Fax: [phone]
[email protected]m.tw
www.remotek.com.tw

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Dual Band ICS Repeater User Manual
Preface
Audience
Thank you for purchasing the Remotek repeater. Strict quality control system procedures are implemented to
ensure you a high quality product; with numerous cellular operators acknowledging the product to be a high
performance, low interference, transparent and simple to operate and maintain.
This document is written for Remotek and customer service personnel, who install, configure and commission the
repeater system in a cellular network.
Scope
The information in this manual is intended to support customer engineering practices and policies, site
engineering standards, and relevant safety standards in case of installing and configuring the REMOTEK
repeater to improve communication quality.
The information herein is not meant to supersede the site engineering design documents.
If any of the instructions present a conflict, please contact Remotek Customer Service Department for further
assistance.
How this manual is organized
Chapter 1 General information on safety precautions and warranty
Chapter 2 Provides an introduction to repeater systems and its applications.
Chapter 3 Outlines installation procedures
Chapter 4 Provides examples and calculation for commissioning proposes
Chapter 5 Steps to take and check if problems occur with the repeater.
Chapter 6 Appendix
Text Conventions
This manual uses special paragraphs to call attention to information that is of particular importance to the reader.
Note: Presents nonessential, but potentially helpful information that helps to understand a topic.
Important: Presents information to avoid an undesirable result.
Warning: Notifies the reader of a potentially hazardous situation that could damage the repeater.

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Table of Contents
1GENERAL...................................................................................................................................5
1.1 WARRANTY ...................................................................................................................................5
1.2 SAFETY INFORMATION...................................................................................................................5
1.3 OTHER PRECAUTIONS ...................................................................................................................6
1.4 GSMAMPLIFICATION IN LTE BAND..............................................................................................7
1.5 INTRA-BAND INTERFERENCE PREVENTION....................................................................................8
1.6 RESTRICTIONS OF ICS REPEATERS ................................................................................................8
2INTRODUCTION TO CHANNEL REPEATERS.................................................................10
2.1 SYSTEM INTRODUCTION..............................................................................................................10
2.2 GENERAL INSTALLATION LAYOUT...............................................................................................10
2.3 BASIC REPEATER SYSTEM COMPONENTS .................................................................................... 11
2.4 ADVANTAGES OF REPEATER ........................................................................................................12
2.5 PROFILE ......................................................................................................................................13
2.6 BLOCK DIAGRAM........................................................................................................................13
2.7 OUTLINE OF AVAILABLE FUNCTIONS ...........................................................................................14
3INSTALLATION.......................................................................................................................15
3.1 PREPARATION ..............................................................................................................................15
3.2 ANTENNA INSTALLATION ............................................................................................................15
3.2.1 Donor Antenna ........................................................................................................................................16
3.2.2 Service Antenna.......................................................................................................................................17
3.2.3 Isolation ...................................................................................................................................................18
3.2.4 ICS Repeater with Intelligent Mode........................................................................................................21
3.3 REPEATER....................................................................................................................................22
3.3.1 Installing the Repeater.............................................................................................................................22
3.3.2 Connecting Feeder and Power Cables....................................................................................................24
3.3.3 Inserting the Micro SIM Card.................................................................................................................24
3.3.4 Modem Working Requirements...............................................................................................................25
4COMMISSIONING..................................................................................................................27
4.1 COMMISSIONING PRINCIPLE........................................................................................................27
4.1.1 Downlink Output Power..........................................................................................................................27
4.1.3 UL Noise Floor ........................................................................................................................................28
4.1.4 Isolation ...................................................................................................................................................29
4.2 REPEATER CONFIGURATION ........................................................................................................30
4.2.1 Gain Calculation......................................................................................................................................30

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4.2.2 Start-up the Repeater...............................................................................................................................32
4.2.3 Gain Setting .............................................................................................................................................32
4.2.4 Control Panel Operation .........................................................................................................................32
5MAINTENANCE......................................................................................................................36
5.1 ALARMS AND SOLUTIONS............................................................................................................36
5.2 TROUBLESHOOTING ....................................................................................................................38
5.3 REPEATER REPLACEMENT ...........................................................................................................38
5.4 BATTERY MAINTENANCE AND REPLACEMENT.............................................................................39
5.4.1 Battery Description..................................................................................................................................39
5.4.2 Ratings (per cell)......................................................................................................................................39
5.4.3 Caution.....................................................................................................................................................39
5.4.4 Battery Replacement................................................................................................................................40
6APPENDIX................................................................................................................................42
6.1 ABBREVIATIONS..........................................................................................................................42
6.2 SPECIFICATION ............................................................................................................................43
6.3 W-DBM CONVERSION TABLE ......................................................................................................47
6.4 WARRANTY PROVISIONS AND DISCLAIMER .................................................................................48
6.4.1 Warranty Range.......................................................................................................................................48
6.4.2 Range of Non-Warranty ..........................................................................................................................48
6.4.3 Service in Non-Warranty.........................................................................................................................49
6.4.4 Disclaimer................................................................................................................................................49

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1 General
This user’s manual provides information that includes installation, configuration, operation and
maintenance of the repeater. Specifications are also provided in details in order to help users
better understand the repeater performance.
Please read this user’s manual carefully and follow all instructions outlined to ensure long life
span and trouble free operation of the unit.
1.1 Warranty
All outdoor antennas must be installed with lightning protection. Damage to power modules, as a
result of lightning, will not be covered by this warranty.
Switching on the AC or DC power prior to connection of antenna cables is considered as an
incorrect installation process and therefore faults arising thereafter are also not covered under
the warranty.
This entire manual should be read and understood before operating or maintaining the repeater
system. Remotek assumes no liability for customer's failure to comply with the precautions
mentioned. This warranty will not cover such failures to comply.
1.2 Safety Information
Personnel Safety
Before installing or replacing any of the repeater equipment, the entire manual should be read
and understood. Operators need to supply appropriate AC or DC power to the repeater. Incorrect
power settings can damage the repeater and may cause electrical related injury to the user.
It is recommended that gloves be worn at ALL time when handling the product.
DO NOT operate equipment in an explosive environment.
DO NOT work on live circuits: Cell site technical and operating person are not authorized to
remove equipment covers. Only personnel authorized by Remotek may remove equipment
covers to replace components or perform internal repairs.
Equipment Safety
It is necessary to read and understand the manual before installing, replacing or using this
product, and one must follow all safety precautions during operation. Failure to comply with the
following general safety precautions and with specific precautions described elsewhere in this
manual violates the safety standards of the design, manufacture, and intended use of this
product. The aluminum alloy enclosure is an excellent heat conductor, so during normal

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operation the unit may feel slightly warm. If it becomes too hot, please call maintenance
immediately.
Electrostatic Sensitivity
ESD: Electrostatic Sensitive Devices
Semiconductor used in this product may be damaged by electrostatic discharge. When
unpacking or handling the repeater, follow precautionary procedures including use of grounded
wrist straps, grounded workbench surfaces, and grounded floor mats.
Grounding Electrical Instruments and Components
To avoid power supply spark, please perform the grounding connection of the equipment racks,
equipment chassis, and appropriate tools. And make sure the equipment’s power cable is
inserted into the appropriate main sockets (three pin or two pin).
In case of three-pin socket, the 3rd pin is used for grounding connection, directly connect the
supplied power cable to the mains socket. In case of a two-pin socket, the green grounding wire
provided with the package needs to be connected to the electrical grounding facility at the power
outlet.
In order to avoid equipment damage or human injury by lightning, static electricity and other
phenomenon of leakage electricity, Remotek suggest all products must do the
electric-discharge of the electrical grounding in setup process. Power supply components must
meet international electro-technical commissioning safety standards.
1.3 Other Precautions
Only authorized personnel should be allowed to install and operate the repeater.
Make sure that the power is switched off when installing or disassembling the repeater
to avoid short circuit or electrical shock that may result into personal injury or damage
to the equipment.
The repeater supports mains power for AC240V, 50/60Hz. Please follow this power
range to avoid any damage to the equipment.
Some electronic parts contain carcinogenic constituents, so please handle with care and
discard them in a safe place if damaged.
A 3-pin mains socket is recommended by Remotek to provide grounding connection
for the repeater.
RF arrestor is recommended to connect to the repeater’s BTS port.
Please make sure that the warning indicators on the enclosure are clearly visible for
quick detection of alarm conditions.

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1.4 GSM Amplification in LTE band
If GSM system (band) is being amplified within the Repeater LTE band along with the LTE
system together, the following status could happen.
AGC Alarm
Insufficient output power for the LTE system
Deteriorated EVM for the LTE system
Cause
Cause of AGC Alarm
1. Strong input GSM signal (which caused the AGC to engage between 6 to 10dB)
2. LTE input signal is 6dB (or more) weaker than the GSM signal.
If the two conditions mentioned previously are both met, the AGC alarm would appear on the
Repeater
Insufficient Output Power for the LTE system of the Repeater
When the input GSM signal strength is equal or greater than the input LTE signal strength, the
output power for the LTE system would be insufficient. The stronger the GSM input is to the
repeater, the weaker the output of the LTE signal from the repeater.
Deteriorated EVM of the LTE
When the input GSM signal is 10dB stronger than the LTE input signal, the EVM of the LTE
system would be deteriorated, and would not meet the listed value on the specification. This
would result in slower data throughput in the repeater coverage area.
These three points listed previously would only occur when the GSM system is being amplified
within the repeater LTE band. When the AGC engaged from 6dB to 10dB for the LTE repeater,
the AGC alarm would occur.
Troubleshooting
If the repeater has AGC alarm, and the output power is not enough or the data throughput speed
is lowered, please use the following troubleshooting method.
1. Connect the donor antenna to the Site Master (332B, 332C, or 332D) to check if there is
strong GSM signal present in the donor signal and record the signal level, also check the
LTE signal level and record it.
Note: The span setting on the Site Master should be 10MHz wider than the repeater LTE
amplification bandwidth.
2. The AGC alarm reason, insufficient output power, and deteriorated EVM status can be
known by checking the LTE signal strength and GSM signal strength of the donor signal.
3. Adjust the donor antenna orientation to achieve the status that the GSM signal strength is
5dB less than the LTE signal strength when there are GSM band being amplified by the LTE
repeater. The minimum requirement to start a LTE repeater site is that the GSM an LTE

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signal are at same signal strength.
4. When there is no way to find the GSM signal strength less or equal to the LTE signal
strength at the original donor antenna location, please relocate the donor antenna location.
5. If at the site, there is absolutely no way of finding a location or orientation with lower GSM
signal strength compared to the LTE signal strength or at least equal GSM signal strength
with the LTE signal strength, then the AGC alarm in the repeater would occur, the output
power of the repeater would be insufficient, and EVM would be deteriorated. All these
abnormal phenomena have nothing to do with the repeater; instead, they are caused by the
GSM signal within the repeater amplification LTE band.
1.5 Intra-band Interference Prevention
GSM and LTE systems
If GSM system and the LTE system are being amplified by the repeater within the same band,
the separation guard band between the 3GPP defined LTE bandwidth and the nearest GSM
channel must be at least 200KHz.
Note: The 3GPP defined LTE bandwidths are 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz, 20MHz.
GSM and WCDMA systems
If GSM system and the WCDMA system band are being amplified by the repeater within the
same band, the separation guard band between the effective signal bandwidth of the WCDMA
signal and the nearest the GSM channel must be at least 580KHz
Note: The effective bandwidth of the WCDMA channel is 3.84MHz.
LTE and WCDMA systems
If LTE system and the WCDMA system are being amplified by the repeater within the same
band, there is no separation guard band required between these two bands. But there are
prerequisites, the LTE band bandwidth must be 3GPP defined LTE bandwidth, and the WCDMA
channel bandwidth must be 3GPP defined WCDMA channel bandwidth
Note: The 3GPP defined LTE bandwidths are 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz, 20MHz.
Note: 3GPP defined WCDMA channel bandwidth is 5MHz, which means 1 channel bandwidth is
5MHz, 2 channels bandwidth is 10MHz, 3 channels bandwidth is 15MHz, 4 channels bandwidth
is 20MHz.
1.6 Restrictions of ICS Repeaters
From the bandwidth perspective

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In order to ensure the Interference Cancellation of the ICS repeater to functioning properly,
there must be a guard band at least 400 KHz on each side of the ICS repeater’s amplifying
bandwidth.
Fail to fulfill this guard band requirement would result in degradation of the interference
cancellation ability of the ICS repeater.
From the input signal at the BTS port perspective
For the GSM system, the input signal Rxlev and Quality at the repeater BTS port must be
Rxlev: > -85dBm / RxQual: < 3
For the WCDMA system, the input signal RSCP and Ec/No at the repeater BTS port must
be
RSCP: > -90dBm / (Ec/No): > -7dB
For the LTE system, the input signal RSRP and SINR at the repeater BTS port must be
RSRP: > -95dBm / SINR: > 5dB