Sierra Wireless AirLink LX40 Installation manual

AirLink LX40
Hardware User Guide
41112510
Rev. 2

AirLink LX40 Series Hardware User Guide
Rev. 2 January 2021 2 41112510
Important
Notice
Due to the nature of wireless communications, transmission and reception of data can
never be guaranteed. Data may be delayed, corrupted (i.e., have errors) or be totally lost.
Although significant delays or losses of data are rare when wireless devices such as the
Sierra Wireless product are used in a normal manner with a well-constructed network, the
Sierra Wireless product should not be used in situations where failure to transmit or
receive data could result in damage of any kind to the user or any other party, including
but not limited to personal injury, death, or loss of property. Sierra Wireless accepts no
responsibility for damages of any kind resulting from delays or errors in data transmitted
or received using the Sierra Wireless product, or for failure of the Sierra Wireless product
to transmit or receive such data.
Safety and
Hazards
Do not operate the Sierra Wireless product in areas where blasting is in progress, near
medical equipment, near life support equipment, or any equipment which may be
susceptible to any form of radio interference. In such areas, the Sierra Wireless product
MUST BE POWERED OFF. The Sierra Wireless product can transmit signals that could
interfere with this equipment.
The driver or operator of any vehicle should not operate the Sierra Wireless product while
in control of a vehicle. Doing so will detract from the driver or operator's control and
operation of that vehicle. In some states and provinces, operating such communications
devices while in control of a vehicle is an offence.
Warning: EXPLOSION HAZARD—DO NOT DISCONNECT WHILE CIRCUIT IS LIVE UNLESS
THE AREA IS KNOWN TO BE NON-HAZARDOUS.
Avertissement: RISQUE D’EXPLOSION—NE PAS DEBRANCHER TANT QUE LE CIRCUIT
EST SOUS TENSION, A MOINS QU’IL NE S’AGISSE D’UN EMPLACEMENT NON DANGEREUX.
Warning: DO NOT USE THE USB CONNECTOR IN A HAZARDOUS AREA.
Avertissement: NE PAS UTILISER DE CONNECTEUR USB DANS LES ENVIRONNEMENTS
DANGEREUX.
Warning: DO NOT USE THE RESET BUTTON IN A HAZARDOUS AREA.
Avertissement: NE PAS UTILISER LE BOUTON DE RESET DANS UN ENVIRONNEMENT
DANGEREUX.
This device is suitable for use in Class 1 Div 2 Groups A, B, C, and D T4 locations.
Ambient temperatures of -30C to +60C. UL Listed for use in ambient temperatures not
exceeding 60C.
Warning: Explosion Hazard. Do not connect or disconnect while circuit is live or unless the area is
known to be free of ignitable concentrations.

Preface
Rev. 2 January 2021 3 41112510
Cet appareil est certifié pour l'usage dans la Classe I, des endroits Devision 2, Groupes
atmosphérique A, B, C et de D, T4. La temp ambiante -30C à +60C. UL Listed pour
utilisation dans des températures ambiantes ne dépassant pas 60C.
Avertissement : Risque D'Explosion. Ne pas débrancher tant que le circuit est électrifié sauf si il
n'y a aucune concentration de vapeurs combustible.
The device is required to be installed in a tool-secured enclosure with the appropriate type
rating.
Limitation of
Liability
The information in this manual is subject to change without notice and does not represent
a commitment on the part of Sierra Wireless. SIERRA WIRELESS AND ITS AFFILIATES
SPECIFICALLY DISCLAIM LIABILITY FOR ANY AND ALL DIRECT, INDIRECT,
SPECIAL, GENERAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR EXEMPLARY
DAMAGES INCLUDING, BUT NOT LIMITED TO, LOSS OF PROFITS OR REVENUE OR
ANTICIPATED PROFITS OR REVENUE ARISING OUT OF THE USE OR INABILITY TO
USE ANY SIERRA WIRELESS PRODUCT, EVEN IF SIERRA WIRELESS AND/OR ITS
AFFILIATES HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES OR
THEY ARE FORESEEABLE OR FOR CLAIMS BY ANY THIRD PARTY.
Notwithstanding the foregoing, in no event shall Sierra Wireless and/or its affiliates
aggregate liability arising under or in connection with the Sierra Wireless product,
regardless of the number of events, occurrences, or claims giving rise to liability, be in
excess of the price paid by the purchaser for the Sierra Wireless product.
Patents This product may contain technology developed by or for Sierra Wireless Inc. This product
includes technology licensed from QUALCOMM®. This product is manufactured or sold by
Sierra Wireless Inc. or its affiliates under one or more patents licensed from MMP
Portfolio Licensing.
Copyright © 2021 Sierra Wireless. All rights reserved.
Trademarks Sierra Wireless®, AirPrime®, AirLink®, AirVantage®and the Sierra Wireless logo are
registered trademarks of Sierra Wireless.
Windows®and Windows Vista®are registered trademarks of Microsoft Corporation.
Macintosh®and Mac OS X®are registered trademarks of Apple Inc., registered in the
U.S. and other countries.
QUALCOMM®is a registered trademark of QUALCOMM Incorporated. Used under
license.
Other trademarks are the property of their respective owners.

AirLink LX40 Series Hardware User Guide
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Contact
Information
Sales information and technical
support, including warranty and returns
Web: sierrawireless.com/company/contact-us/
Global toll-free number: 1-877-687-7795
6:00 am to 5:00 pm PST
Corporate and product information Web: sierrawireless.com

Rev. 2 January 2021 5 41112510
Contents
Introduction to the LX40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Sample Power Consumption Scenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Installation and Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Tools and Materials Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Step 1—Insert the SIM Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Step 2—Mount and Ground the LX40 Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Grounding the LX40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Flat Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Mounting in a High Vibration Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
DIN Rail Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Step 3—Connect the Antennas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Recommended Antenna Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Step 4—Connect the Data Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Step 5—Connect the Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Cable Strain Relief . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Power Connector on the LX40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Step 6—I/O Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Step 7—Check the Router Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
LED Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Ethernet LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Step 8—Configure the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Reboot the LX40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Reset the LX40 to Factory Default Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

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Recovery Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Certification and Interoperability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Mobile Network Operator Certification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Network Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Environmental Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Host Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
SIM Card Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Screw Torque Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Operating Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Wi-Fi Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Wi-Fi Channels Supported. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Wi-Fi Antenna Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Radio Frequency Bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Radio Module Conducted Transmit Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Important Information for North American Users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
RF Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
DC Power Cable (Black Connector) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Contents
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AC Power Adapter (Black Connector) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
AC Power Adapter Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
AC Power Adapter Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
AC Power Adapter Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 59
AC Power Adapter Reliability and Quality Control . . . . . . . . . . . . . . . . . . . . . . . . . . 59
AC Power Adapter Safety Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
AC Power Adapter EMC Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
AC Power Adapter Hazardous Substances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
AC Power Adapter Energy Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

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1
1: Introduction to the LX40
This hardware user guide is for the Sierra Wireless®AirLink®LX40 LTE Router. Features
and specifications described in this user guide apply to all variants of the LX40 unless
otherwise noted.
The AirLink LX40 is designed for Commercial and Enterprise LTE network connectivity.
LX40 provides purpose-built, secure, reliable, managed Cellular LTE networking in
building automation, digital signage, taxis, ATMs, kiosks and point-of-sale terminals.
As part of the AirLink Essential series, the LX40 is designed to meet the environmental
and performance requirements of these applications, while delivering superior reliability
and uninterrupted operation in fixed, indoor and protected outdoor environments.
LX40 is available with optional Wi-Fi and rated for shock and vibration. It offers Dual Band
802.11ac Wi-Fi.
The LX40 comes in LTE Cat 4 regional variants, and a Global LPWA (Low-Power Wide
Area) variant offering LTE-M/NB-IoT for applications where low data rates, enhanced
cellular coverage and global deployment is required.
Key Features
•LTE Cat-4 and Cat-M1/NB1 (LX40 variants)
•2.4/5 GHz 802.11ac Wi-Fi (Wi-Fi models only)
•Gigabit Ethernet port (LAN/WAN)
•1 configurable GPIO
•Power over Ethernet (IEEE 802.3af)
•USB 2.0 Micro-B Connector
•R2C (Ready to Connect) eSIM support
For information on configuring these features, refer to the ALEOS Software Configuration
User Guide for AirLink LX40.

Introduction to the LX40
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Description
Figure 1-1: LX40 Connectors, LEDs and SIM Card Holder
Power Connector
(See page 19.)
Mini-SIM 2FF Card slot
(See Insert the SIM Card
on page 18)
Cellular Antenna Connector
Diversity Antenna Connector
USB 2.0 Micro-AB Port (See Ethernet on page 39.)
(See USB on page 39.) Reset button
(See page 34.)
RJ-45 Ethernet Port
LEDs (See LED Behavior on page 31.)
Wi-Fi Antenna Connector*
(See Connect the Antennas on page 18.)
*Wi-Fi model
Grounding screw
(See page 14.)

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Sample Power Consumption Scenarios
Accessories
The following items come with the LX40 router:
•DC power cable
•Quick Start Guide
The following items can be ordered separately from Sierra Wireless:
•Universal AC power adapter (part number 2000579)
·Voltage input: 100–240 VAC
·Current output: 1.5 A
Table 1-1: Power Consumption Scenarios
Scenario Radio Notes LTE Powera
a. Power consumption was measured at 12 V unless noted.
Cat-M
Power
Standby Mode — — 46 mW
(3.9 mA)
46 mW
(3.9 mA)
Ethernet
(10 BaseT)
Idle Attached 10 BaseT Full duplex 588 mW
(49 mA)
588 mW
(49 mA)
Ethernet
(100 BaseT)
Idle Attached 100 BaseT Full duplex 675 mW
(56.25 mA)
675 mW
(56.25 mA)
Ethernet (GigE) Idle Attached 1000 BaseT Full duplex 935 mW
(78 mA)
935 mW
(78 mA)
Wi-Fi AP 5GHz Idle Attached Wi-Fi enabled (idle) 1100 mW
(91.6 mA)
n/a
Typical Use
(non-Wi-Fi)
Attached and
connected
(20 dBm)
100 BaseT Full duplex,
USB enabled (idle)
3175 mW
(264.6 mA)
1475 mW
(123 mA)
Typical Use
(Wi-Fi)
Attached and
connected
(20 dBm)
100 BaseT Full duplex,
USB and Wi-Fi enabled
(idle)
3700 mW
(308.3 mA)
n/a
Maximum Power
(non-Wi-Fi)
Attached and
connected
(23 dBm)
Ethernet enabled (1000
BaseT full duplex with Auto
negotiation as speed
setting), USB enabled
(pinging)
4480 mW
(373.3 mA)
3817 mW
(318 mA)
Maximum Power
(Wi-Fi)
Attached and
connected
(23 dBm)
Ethernet enabled (1000
BaseT full duplex running
with Auto negotiation as
speed setting), USB
enabled (pinging), Wi-Fi
enabled (1000 BaseT full
duplex running)
6250 mW
(520.8 mA)
7500 mW
(PoE)
n/a
Inrush Current 1 A @ 12 V (Averaged over 100 s)

Introduction to the LX40
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Warranty
The LX40 comes with a 3-year warranty, and has an optional 2-year warranty extension.

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2
2: Installation and Startup
This chapter shows how to connect, install and start the AirLink LX40. It also describes
the front panel LEDs, and I/O functionality.
Note: Field wiring and connections in hazardous locations must be connected as per the wiring
methods requirement for Class 2 circuits mentioned in the National Electric Code and the Canadian
Electric Code.
Note: The LX40 Series gateway installation must be done by a qualified technician.
Tools and Materials Required
•Power supply—AC or DC (DC power cable is supplied by Sierra Wireless)
·Not required if using Power over Ethernet
•A SIM card (provided by your mobile network operator)
•Small slot-head screwdriver (to remove SIM door)
•Computer with Ethernet cable
•LTE MIMO antennas—Main and Diversity
·Diversity antenna not required for CatM1/NB-IoT
•Wi-Fi antenna (LX40 Wi-Fi model only)
Installation Overview
The steps for a typical installation are:
1. Insert the SIM card—page 13.1
2. Mount and ground the LX40 chassis—page 14.
3. Connect the antennas—page 18.
4. Connect the data cables—page 19.
5. Connect the power—page 19.
6. Check the router operation—page 30.
7. Configure the software—page 33.
The following sections describe these steps in detail. Read these sections carefully before
performing the installation.
1. Not required when using the LX40 with R2C eSIM for Sierra Connectivity.

Installation and Startup
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Warning: The default ACEmanager password is printed on the device label. You should always
change the default password after logging in to ACEmanager. However, if the unit must be reset to
factory default settings, your custom password may also be reset to default (depending on the
Reset Mode configured in ACEmanager). Before installation, please record the default password
and store it in a secure place. See also Reset the LX40 to Factory Default Settings on page 34.
Avertissement : Le mot de passe de ACEmanager est imprimé sur l'étiquette de l'unité. Nous
vous recommandons fortement de le changer dès que possible (option dans AceManager). Notez
que si l'unité est réinitialisée aux paramètres d'usine, le mot de passe pourrait également être réini-
tialisé à sa valeur d'origine (selon le mode de réinitialisation configuré dans ACEmanager). A cet
effet, nous vous recommandons de noter ce mot de passe et de le garder dans un endroit sûr avant
de déployer la dite unité. Pour plus d'information, veuillez consulter page 34 " Réinitialiser le LX40
aux paramètres d'usine par défaut "
Note: Depending on where you are installing the LX40, you may want to mount the router before
connecting the antenna, cables and power.
Step 1—Insert the SIM Card
If the SIM card has not already been installed, insert the SIM card into the router before
connecting any external equipment or power to the router.
To install the SIM card:
1. Remove the SIM card cover. Press the tab with a screwdriver while sliding the cover
upwards.
2. Orient the SIM card as shown in Figure 2-1 (with the gold contacts facing down).
3. Gently slide the SIM card into the slot until it clicks into place.
To remove the SIM card, press the SIM card in, and release it. Gently grip the SIM
card and pull it out.
4. Replace the SIM card cover.
Figure 2-1: Installing the SIM Card
Note the orientation of notched corner
for proper SIM card alignment.

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Step 2—Mount and Ground the LX40 Chassis
You can mount the LX40 on a flat surface, and secure it using a mounting bracket (see
Flat Mount on page 15). If you are installing the LX40 in a high-vibration environment, you
can further secure the LX40 to the mounting bracket using nylon cable ties.
Mount the router where:
•There is easy access for attaching the cables
•Cables will not be constricted, close to high amperages or exposed to extreme
temperatures
•The front panel LEDs are easily visible
•There is adequate airflow
•It is away from direct exposure to the elements, such as sun, rain, dust, etc.
Figure 2-2: Mounting and Grounding the LX40
Grounding the LX40
Sierra Wireless strongly recommends that you always ground the chassis using the
grounding point shown in Figure 2-3.
For DC installations (with a fixed “system” ground reference), Sierra Wireless
recommends grounding the LX40 chassis to this system ground reference.
To ensure a good grounding reference, connect one end of a short 18 AWG or larger
gauge wire with a ring terminal connector to the ground terminal on the LX40 and connect
the other end to your main grounding point.
The ground terminal comes with an M2.5 × 6 mm screw. You can use a longer M2.5 screw
if the terminal connector on your ground wire requires one.
Note: Do not overtighten the grounding screw. Tighten to a maximum torque of 0.4 kg/cm.
103 mm
4 1/16 in.
79 mm
3 1/8 in.

Installation and Startup
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Figure 2-3: Ground connector
Flat Mount
To mount the LX40 permanently to any surface or if you are mounting the LX40 on a DIN
rail, order an LX40 mounting bracket kit (P/N 6001221) from Sierra Wireless. The kit
contains:
•Mounting bracket
•DIN rail clip (35 mm EN 50022) (see DIN Rail Mount on page 17)
•Screws for attaching the DIN rail clip to the mounting bracket
To mount the LX40 on a flat surface:
1. Attach the bracket to the mounting surface, using the attachment points shown in
Figure 2-4.
Figure 2-4: Mounting Bracket, showing attachment points
2. Snap the LX40 onto the bracket (see Figure 2-5 on page 16).
a. Angle the LX40 with the antenna connectors downwards, and fit the bracket
clasps against the indentations on the end of the LX40. The raised edge of the
bracket should match the rounded corner of the LX40.
b. Bring the other end of the LX40 down onto the bracket and snap it into place. The
bracket clasps should fit into the indentations on the end of the LX40.
Grounding point
Holes are Ø 4.3 mm (M4 compatible;
use hardware appropriate for your
mounting surface)

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Figure 2-5: Attaching the LX40 to the bracket
Mounting in a High Vibration Environment
Note: If you are mounting the LX40 in a high vibration area, Sierra Wireless strongly recommends
using two nylon cable ties to secure the LX40 on the bracket.
1. Thread the ties beneath the bracket.
2. Wrap the ties around the LX40, using the notches in the LX40 casing (see Figure 2-5)
to align the ties.
3. Tighten and secure the ties around the LX40 and trim off the excess length of the ties.
Raised edge
Notches for cable ties
Step a: Attach
antenna end
Step b: Snap other
end into place.
Press the tab to
disengage the clasps
if removing the LX40.

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DIN Rail Mount
You can mount the LX40 on a DIN rail in a vertical orientation, with the antenna
connectors pointing up or down.
Note: The DIN rail mounting clip should only be used on a horizontally-mounted DIN rail.
Figure 2-6: Attaching the DIN Rail Mounting Clip
To attach the LX40 to a horizontally mounted DIN rail:
Note: Before installing the LX40 in its final location, you may want to install the SIM card (see
page 13), attach antennas (see page 18), power up the device (see page 19) and test the network
connectivity (see page 30). After a successful test, you can remove cables and antennas and
proceed with the procedure below.
1. Secure the LX40 in the mounting bracket, as described on page 15.
2. Use the screws provided to attach the DIN clip to the bracket. Attach the clip in the
direction to achieve the desired position for the LX40. In the final orientation, the
spring clip should be at the bottom. Torque the screws to a maximum of 1.1 N-m (10
in-lb.).
3. Attach the DIN rail clip to a horizontal DIN rail, with the spring clip at the bottom.
Ensure spring clip
is at the bottom
To mount the LX40 with antenna
connectors pointing down, rotate the
DIN clip 180 degrees before attaching.

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Rev. 2 January 2021 18 41112510
Step 3—Connect the Antennas
Warning: This router is not intended for use close to the human body. Antennas should be at least
8 inches (20 cm) away from the operator.
Avertissement : Ce routeur n'est pas destiné à être utilisé à proximité du corps humain. Les
antennes doivent être à au moins 20 cm de toute personne.
The LX40 has two SMA female antenna connectors:
•Cellular antenna connector: Primary receive and transmit antenna connector
•Cellular Diversity antenna connector: LTE MIMO and 3G Diversity
The AirLink LX40 with Wi-Fi also has:
•One reverse polarity SMA male connector for the Wi-Fi antenna.
Sierra Wireless recommends cabling out the antenna.
The LX40 supports 2.4 GHz (2400–2500 MHz) and 5GHz
(4900–5900 MHz) Wi-Fi bands. See Wi-Fi Channels Supported on page 42 for more
information.
For regulatory requirements concerning antennas, see Maximum Antenna Gain on
page 54.
Note: The antenna should not exceed the maximum gain specified in RF Exposure on page 54. In
more complex installations (such as those requiring long lengths of cable and/or multiple connec-
tions), you must follow the maximum dBi gain guidelines specified by the radio communications
regulations of the Federal Communications Commission (FCC), Industry Canada, or your country’s
regulatory body.
To install the antennas:
Note: Take extra care when attaching the antennas to the SMA connectors. Finger tight
(approximately 0.6–0.8 Nm 5–7 in-lb.) is sufficient and the max torque should not go beyond
1.1 Nm (10 in-lb.).
1. Connect the cellular antenna to the SMA cellular antenna connector.
Mount the cellular antenna so there is at least 20 cm between the antenna and the
user or bystander.
2. Connect a second antenna to the SMA diversity antenna connector.
For 3G networks, the second antenna operates as a diversity antenna, providing a
second receive path.
For 4G networks, the second antenna operates as a MIMO antenna, providing a sec-
ond receive path and a second transmit path.
3. For Wi-Fi-capable routers, connect the Wi-Fi antenna to the SMA Wi-Fi connector.

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Rev. 2 January 2021 19 41112510
Note: If the antennas are located away from the router, keep the cables as short as possible to
prevent the loss of antenna gain. Route the cables so that they are protected from damage and will
not be snagged or pulled on. There should be no binding or sharp corners in the cable routing.
Excess cabling should be bundled and tied off. Make sure the cables are secured so their weight
will not loosen the connectors from the router over time.
Figure 2-7: Antenna Connectors
Recommended Antenna Separation
The recommended antenna separation is related to the band frequency/wavelength. To
accommodate the shortest frequency/longest wavelength band supported by the LX40,
Sierra Wireless recommends a minimum antenna separation of 214 mm for best results,
and if necessary, a separation of 107 mm for acceptable results.
Step 4—Connect the Data Cables
The LX40 has the following ports for connecting data cables:
•USB (Micro-AB)
•Ethernet (RJ-45)—Use a Cat 5e or Cat 6 Ethernet cable
Step 5—Connect the Power
The AirLink LX40 comes with a 3 meter (10 ft.) DC power cable. You can also purchase
an optional AC adapter.
Cellular antenna connector
Diversity antenna connector
Wi-Fi antenna connector
Table 2-1: Frequency / Wavelength Range and Recommended Antenna Separation for the
AirLink LX40
Service Wavelength Range for LX40 Frequency
(MHz)
Wavelength
() (mm)
Best Antenna
Separation (mm) (1/2 )
Good Antenna
Separation (mm) (1/4 )
LTE Longest 700 428 214 107
LTE Shortest 2600 115 58 29

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Rev. 2 January 2021 20 41112510
The LX40 can also use Power over Ethernet. An Ethernet cable connected to a
compatible1network switch or router can supply power to the LX40. No connection to the
LX40 power connector (see Figure 2-8 on page 21) is required.
Warning: Electrical installations are potentially dangerous and should be performed by personnel
thoroughly trained in safe electrical wiring procedures.
Avertissement : Les installations électriques sont potentiellement dangereuses et devraient être
effectuées par du personnel parfaitement formé aux procédures de sécurité de câblage électrique.
The LX40 supports an operating voltage of 7 V–36 V, but because low voltage standby
mode is enabled by default, you must supply more than 9 V at startup.
In cases where both PoE and DC power are connected, PoE will power the LX40 when
DC voltage is below 20 V.
If you want to operate the router at a lower voltage, you can change the low voltage
standby settings once the router is up and running. For more information, refer to the
ALEOS Software Configuration User Guide (Services chapter).
Cable Strain Relief
Sierra Wireless recommends using cable strain relief for installations in high-vibration
environments.
Place the cable strain relief within 200 mm (8 in.) of the LX40 to reduce the mass of cable
supported by the power connector under vibration. Ideally, the strain relief mounting for
the DC cable should be attached to the same object as the LX40, so both the router and
cable vibrate together. The strain relief should be mounted such that it does not apply
additional stress on the power connector. The cable should not be taut and should not pull
the power connector at an angle.
Fusing
For DC installations, Sierra Wireless recommends fusing the power input using a 4 A, fast
blow fuse on the Vin line, recommended to have no more than ±10% de-rating over the
operating temperature range.
1. The LX40 is a 802.3af Powered Device