CommScope MRx18 User manual

MRx18
miniRepeater
Release 2
Single-Band
User's Manual
M0139ADY

Page 2 M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band
DISCLAIMER:
This document has been developed by CommScope, and is intended for the use of its
customers and customer support personnel. The information in this document is subject to
change without notice. While every effort has been made to eliminate errors, CommScope
disclaims liability for any difficulties arising from the interpretation of the information
contained herein. The information contained herein does not claim to cover all details or
variations in equipment, nor to provide for every possible incident to be met in connection
with installation, operation, or maintenance. This document describes the performance of the
product under the defined operational conditions and does not cover the performance under
adverse or disturbed conditions. Should further information be desired, or should particular
problems arise which are not covered sufficiently for the purchaser’s purposes, contact
CommScope.
CommScope reserves the right to change all hardware and software characteristics without
notice.
COPYRIGHT:
© Copyright 2021 CommScope Inc. All Rights Reserved.
This document is protected by copyright. No part of this document may be reproduced,
stored in a retrieval system, or transmitted, in any form or by any means, electronic,
mechanical photocopying, recording, or otherwise without the prior written permission of
CommScope.
TRADEMARKS
All trademarks identified by ® or ™ are registered trademarks or trademarks, respectively, of
CommScope. Names of products mentioned herein are used for identification purposes only
and may be trademarks and / or registered trademarks of their respective companies.
Andrew Wireless Systems GmbH, 17-February-2021

Table of Contents
M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band Page 3
TABLE OF CONTENTS
1. GENERAL 6
1.1. ABBREVIATIONS 6
1.2. HEALTH AND SAFETY 7
1.3. PROPERTY DAMAGE WARNINGS 7
1.4. COMPLIANCE 8
1.5. ABOUT COMMSCOPE 12
1.6. CONTACTING COMMSCOPE 13
1.6.1. CommScope Mobility Solutions (CMS) Technical Support 13
1.6.2. Accessing DCCS User Documentation 13
1.6.3. Technical Training 13
2. INTRODUCTION 14
2.1. PURPOSE 14
2.2. THE MRX18 14
3. FUNCTIONAL DESCRIPTION 15
3.1. GENERAL 15
3.2. DESIGN AND CONNECTORS 16
4. INSTALLATION AND COMMISSIONING 17
4.1. MECHANICAL INSTALLATION 17
4.1.1. Health and Safety for Mechanical Installation 17
4.1.2. Property Damage Warnings for Mechanical Installation 17
4.2. ELECTRICAL INSTALLATION 18
5. SOFTWARE SETUP 22
5.1. LOGIN 22
5.2. MENU BAR – BUTTONS 23
5.3. STATUS BAR 23
5.4. STATUS 24
5.5. SETTINGS 25
5.5.1. Settings – Radio Frequency 26
5.5.2. Settings – Alarms 28
5.5.3. Settings – Modem Control 29
5.5.4. Settings – LAN Connectivity 30
5.5.5. Settings – User Account 32

Table of Contents
Page 4 M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band
5.6. MAINTENANCE 33
5.7. LOGOUT 34
5.8. UPLOAD NEW SOFTWARE VERSION 35
6. OPTIONAL EQUIPMENT 37
6.1. EXTERNAL MODEM (KIT) 37
6.2. ANTENNA 37
6.3. ADAPTER CABLE 37
7. ALARMING AND SUPERVISION 38
7.1. ALARM LEDS 38
7.2. DISPLAY AND RESET & INSTALLATION ASSISTANCE BUTTON 39
8. APPENDIX 41
8.1. ELECTRICAL SPECIFICATIONS MRX18 41
8.2. ENVIRONMENTAL AND SAFETY SPECIFICATIONS MRX18 48
8.3. MECHANICAL SPECIFICATIONS MRX18 49
8.4. SPARE PARTS LIST 49
9. LIST OF CHANGES 50
10. INDEX 51

Figures and Tables
M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band Page 5
FIGURES AND TABLES
figure 3-1 Block diagram........................................................................................... 15
figure 3-2 Connectors of MRx18............................................................................... 16
figure 4-1 MRx18, position of screws for wall mounting............................................ 17
Figure 4-2 Power connection of DC connector with MRx18 ..................................... 19
figure 5-1 Login page................................................................................................ 22
figure 5-2 Status-bar................................................................................................. 23
figure 5-3 Status – General & Alarms....................................................................... 24
figure 5-4 Settings – Radio Frequency ..................................................................... 26
figure 5-5 Settings – Alarms ..................................................................................... 28
figure 5-6 Settings – Modem Control........................................................................ 29
figure 5-7 Settings – LAN Connectivity..................................................................... 30
figure 5-8 Settings – User Account........................................................................... 32
figure 5-9 Maintenance............................................................................................. 33
figure 5-10 Logout .................................................................................................... 34
figure 5-11 Upload new software version ................................................................. 35
figure 6-1 Coverage antenna for MRx18, optional equipment .................................. 37
figure 7-1 Display and alarm LEDs........................................................................... 38
figure 7-2 Display with reset button and alarm LEDs................................................ 39
figure 7-3 Display – RSSI ......................................................................................... 40
figure 7-4 Display – Gain UL and DL........................................................................ 40
figure 7-5 Display – Pout UL and DL.......................................................................... 40
figure 7-6 Display – LAN IP Address ........................................................................ 40
figure 8-1 Cabinet drawing MRX18........................................................................... 49
table 5-1 Menu-bar buttons, description ................................................................... 23
Table 5-2 Status bar, description.............................................................................. 23
Table 5-3 Refresh and Auto Refresh buttons, description........................................ 24
Table 5-4 Status – General....................................................................................... 24
Table 5-5 Status – Alarms........................................................................................ 25
Table 5-6 Radio Frequency – Power........................................................................ 26
table 5-7 Radio Frequency – General....................................................................... 27
Table 5-8 Radio Frequency – Auto Gain .................................................................. 28
table 5-9 Settings – Alarms....................................................................................... 28
table 5-10 Settings – Modem Control ....................................................................... 30
Table 5-11 LAN Connectivity – General ................................................................... 31
Table 5-12 LAN Connectivity – DHCP Settings........................................................ 31
Table 5-13 LAN Connectivity – SNMP Settings........................................................ 32
table 5-14 Settings – User Account.......................................................................... 32
Table 5-15 Maintenance – Modem Debugging......................................................... 33
Table 5-16 Maintenance – Software Update ............................................................ 34
Table 5-17 Maintenance – Webpage Update........................................................... 34
Table 7-1 Alarm LEDs .............................................................................................. 38

1. General
Page 6 M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band
1.General
1.1.Abbreviations
3GPP 3rd Generation Partnership
Project
ALC Automatic Level Control
AMPS American Mobile Phone System
or Advanced Mobile Phone
System
BITE Built-In Test Equipment
BTSBase Transceiver Station
CDMA Code Division Multiple Access
CF Center Frequency
CFO Center Frequency Offset
CFR Code of Federal Regulations
DL Downlink
DoC Declaration of Conformity
ESD Electrostatic Discharge
ETS European Telecommunication
Standard
ETSI European Telecommunication
Standards Institute
GSM Global System for Mobile
Communication
GUI Graphical User Interface
I2C-Bus Inter-Integrated Circuit Bus
(Philips)
ID No Identification Number
IF Intermediate Frequency
ISDE Innovation, Sciences et
Développement économique
Canada
ISED Innovation, Science and
Economic Development
Canada; formerly IC / Industry
Canada
LED Light Emitting Diode
LMT Local Maintenance Terminal
LNA Low Noise Amplifier
MCC Mobile Country Code
MNC Mobile Network Code
MR Microwave Repeater
MS Mobile Station
OIP-3 Output Intercept Point of the
3rdOorder
OMC Operation and Maintenance
Center
PA Power Amplifier
PCS Personal Communication
System
PSU Power Supply Unit
RED Radio Equipment Directive
Rev Revision
RF Radio Frequency
RLP Radio Link Protocol
RSSI Receive Signal Strength
Indication
RTC Real-Time Clock
RX Receiver
RoHS Directive on Restriction of
certain Hazardous Substances
RSSIReceive Signal Strength
Indication
SCL Serial Clock
SDA Serial Data
SMSC Short Message Service Center
TCH Traffic Channel
TX Transmitter
UE User Equipment
UL Uplink
UMTS Universal Mobile
Telecommunication System
UPS Uninterruptable Power Supply
URL Uniform Resource Locator

1. General
M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band Page 7
1.2.Health and Safety
Caution: High frequency radiation in operation. Risk of health hazards associated
with radiation from the antenna(s) connected to the unit. Implement prevention
measures to avoid the possibility of very close proximity to the antenna(s) while in
operation.
1.3. Property Damage Warnings
1. Attention: Due to power dissipation, the unit may reach a very high temperature.
Do not operate this equipment on or close to flammable materials. Use caution
when servicing the unit.
2. Attention: If the plug of the unit’s power supply cable serves as disconnecting
device, the socket for devices with a plug connection must be easily accessible
and within easy reach.
3. Notice: Although the unit is internally protected against overvoltage, it is strongly
recommended to ground (earth) the antenna cables close to the repeater’s
antenna connectors for protection against atmospheric discharge.
4. Notice: ESD precautions must be observed. Before commencing maintenance
work, use the available grounding (earthing) system to connect ESD protection
measures.
5. Notice:Only suitably qualified personnel are allowed to work on this unit and only
after becoming familiar with all safety notices, installation, operation and
maintenance procedures contained in this manual.
6. Notice: Keep operating instructions within easy reach and make them available to
all users.
7. Notice: Read and obey all the warning labels attached to the unit. Make sure that
all warning labels are kept in a legible condition. Replace any missing or damaged
labels.
8. Notice: Only license holders for the respective frequency range are allowed to
operate this unit.
9. Notice: Make sure the repeater settings are correct for the intended use (refer to
the manufacturer product information) and regulatory requirements are met. Do
not carry out any modifications or fit any spare parts, which are not sold or
recommended by the manufacturer.
Unless otherwise agreed to in writing by CommScope, CommScope’s general limited
product warranty (http://www.commscope.com/Resources/Warranties/) shall be the
warranty governing the MRx18 Units, including the installation, maintenance, usage
and operation of the MRx18 Units.

1. General
Page 8 M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band
1.4. Compliance
1. Notice: For installations, which have to comply with FCC RF exposure
requirements, the antenna selection and installation must be completed in a way
to ensure compliance with those FCC requirements. Depending on the RF
frequency, rated output power, antenna gain, and the loss between the repeater
and antenna, the minimum distance D to be maintained between the antenna
location and human beings is calculated according to this formula:
]/[
][
][
2
4
cmmW
mW
cm PD
P
D∗∗ =
π
where
•P (mW) is the radiated power at the antenna, i.e. the max. rated repeater
output power in addition to the antenna gain minus the loss between the
repeater and the antenna.
•PD (mW/cm²) is the allowed Power Density limit acc. to 47 CFR 1.1310 (B)
for general population / uncontrolled exposures which is
of (MHz) / 1500 for frequencies from 300MHz to 1500MHz
o1 for frequencies from 1500MHz to 100,000MHz
RF exposure compliance may need to be addressed at the time of licensing, as
required by the responsible FCC Bureau(s), including antenna co-location
requirements of 1.1307(b)(3).
2. Notice:For installations which have to comply with European EN50385 exposure
compliance requirements, the following Power Density limits/guidelines (mW/cm²)
according to ICNIRP are valid:
o0.2 for frequencies from 10 MHz to 400 MHz
of (MHz) / 2000 for frequencies from 400 MHz to 2 GHz
o1 for frequencies from 2 GHz to 300 GHz
3. Notice: Installation of this equipment is in full responsibility of the installer, who
has also the responsibility, that cables and couplers are calculated into the
maximum gain of the antennas, so that this value, which is filed in the FCC Grant
and can be requested from the FCC data base, is not exceeded. The industrial
boosters are shipped only as a naked booster without any installation devices or
antennas as it needs for professional installation.

1. General
M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band Page 9
4. Notice: For installations which have to comply with FCC/ISED requirements:
English:
This device complies with FCC Part 15. Operation is subject to the following two
conditions: (1) this device may not cause interference, and (2) this device must accept
any interference, including interference that may cause undesired operation of the
device.
This device complies with Health Canada’s Safety Code. The installer of this device
should ensure that RF radiation is not emitted in excess of the Health Canada’s
requirement. Information can be obtained at http://www.hc-sc.gc.ca/ewh-
semt/pubs/radiation/radio_guide-lignes_direct-eng.php.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
Antenna Stmt for ISED:
This device has been designated to operate with the antennas having a maximum gain
of 9 dBi. Antennas having a gain greater than 9 dBi are prohibited for use with this
device without consent by ISED regulators. The required antenna impedance is 50
ohms.
The antenna(s) used for this transmitter must be installed to provide a separation
distance of at least 100 cm from all persons and must not be co-located or operating in
conjunction with any other antenna or transmitter. Users and installers must be provided
with antenna installation instructions and transmitter operating conditions for satisfying
RF exposure compliance.
French:
Cet appareil est conforme avec Santé Canada Code de sécurité 6. Le programme
d’installation de cet appareil doit s’assurer que les rayonnements RF n’est pas émis au-
delà de I’exigence de Santé Canada. Les informations peuvent être obtenues:
http://www.hc-sc.gc.ca/ewh-semt/pubs/radiation/radio_guide-lignes_direct-fra.php
Antenne Stmt pour ISDE:
Ce dispositif a été désigné pour fonctionner avec les antennes ayant un gain maximal de
9 dBi. Antennes ayant un gain plus grand que 9 dBi sont interdites pour une utilisation
avec cet appareil sans le consentement des organismes de réglementation d’ISDE.
L’impédance d’antenne requise est 50 ohms.
L’antenne (s) utilisé pour cet émetteur doit être installé pour fournir une distance de
séparation d’au moins 100 cm de toutes les personnes et ne doit pas être co-localisées
ou opérant en conjonction avec une autre antenne ou émetteur. Les utilisateurs et les
installateurs doivent être fournis avec des instructions d’installation de l’antenne et des
conditions de fonctionnement de l’émetteur pour satisfaire la conformité aux expositions
RF.
5. Notice: The power supply of the unit complies with Overvoltage Category II. It
also complies with the surge requirement according to EN 61000-4-5 (fine
protection); however, installation of an additional medium (via local supply
connection) and/or coarse protection (external surge protection) is recommended
depending on the individual application in order to avoid damage caused by
overcurrent.
For Canada and US, components used to reduce the Overvoltage Category shall
comply with the requirements of IEC 61643-series. As an alternative, components
used to reduce the Overvoltage Category may comply with ANSI/IEEE C62.11,
CSA Certification Notice No. 516, CSA C22.2 No. 1, or UL 1449. Suitability of the
component for the application shall be determined for the intended installation.

1. General
Page 10 M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band
6. Notice: Corresponding local particularities and regulations must be observed. For
national deviations, please refer to the respective documents that can be
downloaded as well.
7. Note: For a Class A digital device or peripheral:
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at
his own expense.
8. Note: For a Class B digital device or peripheral:
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to
try to correct the interference.
9. Note: This unit complies with European standard EN60950-1 / EN62368-1.

1. General
M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band Page 11
Equipment Symbols Used / Compliance
Please observe the meanings of the following symbols used in our equipment and
the compliance warnings:
Symbol
Compliance
Meaning / Warning
--- FCC
For industrial (Part 20) signal booster:
WARNING: This is NOT a CONSUMER device. It is
designed for installation by FCC LICENSEES and
QUALIFIED INSTALLERS. You MUST have an FCC
LICENSE or express consent of an FCC Licensee to
operate this device. Unauthorized use may result in
significant forfeit
ure penalties, including penalties in
excess of $100,000 for each continuing violation.
--- ISED
WARNING: This is NOT a CONSUMER device. It is
designed for installation by an installer approved by an
ISED licensee. You MUST have an ISED LICENCE or
the express consent of an ISED licensee to operate this
device.
AVERTISSEMENT: Ce produit N’EST PAS un appareil
de CONSOMMATION. Il est conçu pour être installé par
un installateur approuvé par un titulaire de licence
d’ISDE. Pour utiliser cet appareil, vous DEVEZ détenir
une LICENCE d’ISDE ou avoir obtenu le consentement
exprès d’un titulaire de licence autorisé par ISDE.
CE
To be sold exclusively to mobile operators or authorized
installers – no harmonized
frequency bands, operation
requires license. Intended use: EU and EFTA countries
Indicates conformity with the RED directive 2014/53/EU
and/or RoHS directive 2011/65/EU.
CE
Indicates conformity with the RED directive 2014/53/EU
and RoHS directive 2011/65/EU certified by the notified
body no. 0700.
WEEE Recycling
Do not put the units into the garbage but dispose of them properly
according to local and/or regional regulations.
Country specific information about collection and recycling arrangements per the
Waste Electrical and Electronic Equipment (WEEE) Directive and implementing
regulations is available on CommScope’s website.
http://www.commscope.com/About-Us/Corporate-Responsibility-and-Sustainability/Environment/#recycling

1. General
Page 12 M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band
1.5. About CommScope
CommScope is the foremost supplier of one-stop, end-to-end radio frequency (RF)
solutions. Part of the CommScope portfolio are complete solutions for wireless
infrastructure from top-of-the-tower base station antennas to cable systems and
cabinets, RF site solutions, signal distribution, and network optimization. For patents
see www.cs-pat.com.
CommScope has global engineering and manufacturing facilities. In addition, it
maintains field engineering offices throughout the world.
Andrew Wireless Systems GmbH based in Buchdorf/Germany, which is part of
CommScope, is a leading manufacturer of coverage equipment for mobile radio
networks, specializing in high performance, RF and optical repeaters. Our optical
distributed networks and RF repeater systems provide coverage and capacity
solution for wireless networks in both indoor installations and outdoor environments,
e.g. tunnels, subways, in-trains, airport buildings, stadiums, skyscrapers, shopping
malls, hotels and conference rooms.
Andrew Wireless Systems GmbH operates a quality management system in
compliance with the requirements of ISO 9001 and TL 9000. All equipment is
manufactured using highly reliable material. To maintain highest quality of the
products, comprehensive quality monitoring is conducted at all fabrication stages.
Finished products leave the factory only after a thorough final acceptance test,
accompanied by a test certificate guaranteeing optimal operation.
Hereby Andrew Wireless Systems declares that the radio equipment type Repeater
is in compliance with Directive 2014/53/EU.
The full text of the EU declaration is available at the following internet address:
http://www.commscope.com/resources/in-building-wireless.
According to the DoC, our “CE”-marked equipment can be used in all member
states of the European Union.
Note:Exceptions of and national deviations from this intended use may be possible.
To observe corresponding local particularities and regulations, please refer to
the respective documents (also in national language) which can be
downloaded which can be downloaded under the same link as this manual.
To make the most of this product, we recommend you carefully read the instructions
in this manual and commission the system only according to these instructions.
In case you need additional manuals as reference, they can be downloaded under
the same link as this manual or as specified in the “Accessing DCCS User
Documentation“ part of the next chapter. Application notes and other additional
documents that may be required as reference can either be downloaded under the
same link or are available upon request.
For technical assistance and support, please refer to the CMS Technical Support
contact information in the next chapter.

1. General
M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band Page 13
1.6.Contacting CommScope
1.6.1. CommScope Mobility Solutions (CMS) Technical Support
For additional information, please contact CMS Technical Support:
Telephone Helplines:Call one of the Telephone Helpline numbers listed below to
get live support, 24 hours a day.
Global 24X7
[phone]
(Toll free for U.S. and Canada)
EMEA 8:00-17:00 (UTC +1)
+ 800 73732837
(Toll free for parts of EMEA and Australia)
+ 49 909969333
(Toll charge incurred)
Calls to an EMEA Helpline outside of the 8:00 to 17:00 time frame will be forwarded
to the 24x7 Helpline.
Online Support: Click on the following URL link to submit tickets using the online
CMS Technical Support Form:
http://www.commscope.com/wisupport
Alternatively, enter the preceding URL into your web browser, and then
press ENTER on your keyboard or scan the QR code.
1.6.2. Accessing DCCS User Documentation
To access the Customer Portal of DCCS (Distributed Coverage and
Capacity Solutions), scan the QR Code to the right or go to
http://www.commscope.com/membership. Follow the prompts and click
DCCS to open the site. A user account and password are required.
Please register for an account if you don’t have one. Once you have
access, click to select a product line link to access the documentation for that
product.
1.6.3. Technical Training
To access the CommScope University Training site, please use the
following web address http://www.commscopeuniversity.com or scan
the QR code to the right.
Both online and classroom training are available. Instructor-led courses
are conducted in North America and Europe. Before choosing a
course, please verify the region.
For training related questions, please contact us:
Americas: DASTrainin[email protected]
EMEA: [e-mail]

2. Introduction
Page 14 M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band
2.Introduction
2.1.Purpose
The MRx18 is a bi-directional amplifier used to enhance signals between a mobile
and a base station in a mobile network. It has been designed to increase signal
strength in small and medium sized areas such as offices, shops, and basements. By
boosting the signal level, the MRx18 increases indoor coverage and allows high data
rate connectivity.
If weak signal transmissions occur within the coverage area due to indoor
applications, topological conditions or distance from the transmitter, a repeater is
used to extend transmission range. In the downlink path, the repeater picks up the
signals from a donor antenna of a BTS / Node B, amplifies and re-transmits it into the
required dark spot. In the uplink (UL) path the repeater picks up the signals from a
mobile/UE and re-transmits it to the BTS/Node B.
2.2.The MRx18
CommScope’s MRx18 gives designers a simple tool to solve their small area
coverage and performance issues.
The MRx18 is easy to install. Also, a web-based browser simplifies to commission
and configure the equipment. The RF link (donor) towards the base station is
typically fed from an outdoor antenna while the coverage area is fed by an indoor
antenna. The possibility to adjust the passband of a repeater helps to cover any
specific segment or frequency band.
Due to modular design the single varia version MRx18 may be available as a triple-
varia segment or a dual-band-varia version in one cabinet. Auto Gain functionality
enables automatic gain adjustment in order to maximize performance; however, gain
may be set manually if desired. An alarm interface with a display and LEDs indicates
the status of the equipment locally. Moreover, the status and alarms of the MRx18
can be queried via the web-based browser. The MRx18 has an optional remote
monitor function that provides equipment alarming and basic configuration settings
via a GSM-SMS. Alarm SMSs (including heartbeat) can be sent to the common
Andrew OMC or to any standard SMS receiver (even a mobile phone). Moreover, the
MRx18 can be connected to LAN.

3. Functional Description
M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band Page 15
Features at a glance
•Easy to install due to light weight, small dimensions, and Auto Gain
functionality
•Easy commissioning via web-based browser
•Automatic level control (ALC)
•Variable bandwidth
•Automatic power down/up option at user-defined DL RSSI threshold
•LEDs for local alarm indication
•Display of RSSI, gain, output power, status indication, and LAN IP address
•Optional remote control via SMS
•Connection to LAN
•Remote alarming through SNMP alarm traps
•Complying with all regulatory agencies (GSM 05.05, 3GPP and FCC)
3.Functional Description
3.1.General
The name of a specific MRx18 miniRepeater reflects the frequency range in which it
operates (e.g. MR918 => 900 MHz frequency range). The operation principle is
depicted in the following block diagram:
figure 3-1 Block diagram
E0783B9

3. Functional Description
Page 16 M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band
3.2.Design and Connectors
figure 3-2 Connectors of MRx18
Note: SMA connectors have a specified torque of 0.45 Nm. Use an appropriate
tool to fasten and unfasten these connectors. Do not over-tighten the
connectors or screws.
RF donor antenna
connector, BTS, SMA
DC connector
Modem connector
DC + Data
Reset and
installation assistance
switch
RF coverage antenna
connector, mobile, SMA
Ethernet
connector
RF modem connector SMA, 25 dB coupling loss

4. Installation and Commissioning
M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band Page 17
4.Installation and Commissioning
4.1.Mechanical Installation
4.1.1. Health and Safety for Mechanical Installation
Caution: Risk of serious personal injury by equipment falling due to improper
installation. The installer must verify that the supporting surface will safely
support the combined load of the electronic equipment and all attached hardware
and components. The screws and dowels (wall anchors) used should also be
appropriate for the structure of the supporting wall.
4.1.2. Property Damage Warnings for Mechanical Installation
1. Attention: Do not install the unit in a way or at a place where the specifications
outlined in the Environmental and Safety Specifications leaflet of the supplier are
not met.
2. Attention: It is the responsibility of the installer to verify that the supporting
surface will safely support the combined load of the electronic equipment and all
attached hardware and components and to ensure that the unit is safely and
securely mounted.
3. Notice: Use proper mounting hardware depending on the structure of e.g. the
wall where the unit will be installed.
figure 4-1 MRx18, position of screws for wall mounting
Position of screws
Mount the MRx18
to a wall with tw
o
screws (spacers
not required):

4. Installation and Commissioning
Page 18 M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band
4.2.Electrical Installation
1. Notice: The electrical installation has to be performed in accordance with the
safety regulations of the local authorities. Due to safety reasons, the electrical
installation must be performed by qualified personnel only. The repeater must not
be opened.
2. Notice: Cable shields (outer conductors) of coaxial cables that lead into or out of
the building must be included in the equipotential bonding system of the building,
either on the devices or separately. If a galvanic isolator, a fully insulated
subscriber junction box or house transfer points with galvanic isolation are used
for the inner conductor and for the cable shield (outer conductor), there is no
need for equipotential bonding for the subscriber terminal.
3. Notice: When exchanging or removing active or passive devices (e.g. amplifiers,
splitters, or coaxial cables), care must be taken to avoid that leakage currents
from terminal equipment cause dangerous voltages to arise between the
interrupted parts (inner conductors and/or cable shields (outer conductors)) by
disconnecting the loop. It must be ensured that the conductive connection of the
cable shields (outer conductors) is maintained even when devices are
exchanged or removed in order to avoid electric shock (dangerous body
currents). The inner conductors must also be secured against contact. Before a
temporary solution for the equipotential bonding is applied, the parts to be
detached (e.g. the F-type plug-in connector of a removed cable) should remain
connected to the temporary connection for equipotential bonding during the
entire uninstallation/installation process.
4. Notice: Observe the labels on the front panels before connecting or
disconnecting any cables.
Connect the antenna cables to the antenna connectors and the antennas.
Use only the power supply delivered with the unit. Do not modify the power
supply unit (PSU) and cable.
Do not mount the PSU to the ceiling.

4. Installation and Commissioning
M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band Page 19
Connect the DC connector of the power supply and provide mains to the power
supply. Ensure the DC connector is plugged in correctly as in the following
illustrations.
Plug in the male DC connector by
inserting the lug into the guide at
the DC connector with the arrow-
molded side on top
, see
illustrations.
The DC connector of the cable is
equipped with a locking mechanism.
The system of locking the plug is based
on a “push-
pull” mechanism. The
locking sleeve has to be pulled back to
free the connection.
Figure 4-2 Power connection of DC connector with MRx18
Align the donor antenna towards the BTS. The MRx18 provides antenna
alignment assistance. Therefore, press the “Reset and installation assistance”
switch (see chapter 3.2 Design and Connectors) for at least ten seconds after (!)
the boot process has been finished (i.e. red ALC LED is blinking for four
seconds). This will set the gain to max. value and disable Auto Gain for about four
minutes. The status LED will be blinking red/green. Align the donor antenna
towards the BTS / Node B tower to reach the highest RSSI level possible. Check
the RSSI level at the display (see chapter 7 Alarming and Supervision). After four
minutes the gain and Auto Gain are adjusted to the values prior to the activation
of the antenna alignment.
Note: With the “RSSI based Power Off” feature switched on, Antenna
Alignment Assistance will be interrupted if the “RSSI power off” level is
exceeded as the corresponding band will be switched off.
Align the coverage antenna.
As the default settings of the repeater are set to ‘Auto Gain enabled’, only the
frequencies have to be adjusted. Additionally, the repeater can be customized with a
laptop or PC via Ethernet connector:
Locking sleeve
Pull back
locking sleeve
to disconnect!
Lug
Guide of DC connector
Lug
Insert lug into guide
Insert with
arrow-molded
side on top

4. Installation and Commissioning
Page 20 M0139ADY User’s Manual for MRx18 Rel. 2 Single-Band
For local connection, connect the straight CAT 6 patch cable to the Ethernet
connector of the MRx18 and the network connector of a laptop or PC. For MRx18
connection to a LAN network, connect the cross-over cable. (Note: The MRx18
operates at 10 Mbps and full-duplex).
Start a browser (e.g. Internet Explorer 11, or Mozilla Firefox, recommended
version V70.0.1, or Chrome, recommended version 78.0 or higher) and enter
URL: http://192.168.1.1. For IE11 it might be necessary to set the “Browser
Mode” to Compatibility View as explained at the end of this chapter.
Note: If the connection cannot be established, it might be necessary to set the
IP address of the computer or laptop (Start => Settings => Control Panel =>
Network Connections => Your Network-Connection => Properties => Internet
Protocol (TCP/IP) => Properties => Enable ‘Use the following IP address’ and
enter an IP address, e.g. 192.168.1.10). Do not use IP addresses
192.168.1.2 or 192.168.1.1.
Before changing the settings in the Internet Protocol (TCP/IP) =>
Properties, please write down the current settings. Ensure no proxy
server for internet access is activated any longer, either.
After having finished setting up the MRx18, please change all the TCP/IP
settings to the original ones BEFORE re-connecting your computer to
any other network. Re-activate the proxy settings if necessary, too.
Enter User name: MRx18 and password: MRx18 (case-sensitive).
Commission the repeater according to the description in the following chapter and
save settings to the repeater.
Disconnect the CAT 6 patch cable and check LEDs and display of the repeater.
STOP