Sierra Wireless AirLink MP70 Hardware User's Manual
AirLink MP70
Hardware User Guide
4119008
Rev 4
AirLink MP70 Hardware User Guide
Important
Notice
Safety and
Hazards
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 modem are used in a normal manner with a
well-constructed network, the Sierra Wireless modem 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 modem, or for failure of the Sierra Wireless modem to
transmit or receive such data.
Do not operate the Sierra Wireless modem 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 modem MUST BE POWERED OFF. The Sierra Wireless modem can
transmit signals that could interfere with this equipment.
The driver or operator of any vehicle should not operate the Sierra Wireless
modem 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.
Limitation of
Liability
Avertrissement: RISQUE D’EXPLOSION-NE PAS DEBRANCHER TANT QUE LE
CIRCUIT EST SOURS TENSION, A MOINES QU’IL NE S’AGISSE D’UN
EMPLACEMENT NON DANGEREUX.
Warning: DO NOT USE THE USB CONNECTOR IN A HAZARDOUS AREA.
Avertrissement: NE PAS UTILISER DE CONNECTEUR USB DANS LES
ENVIRONNEMENTS DANGEREUX.
Warning: DO NOT USE THE RESET BUTTON IN A HAZARDOUS AREA.
Avertrissement: NE PAS UTILISER LE BOUTON DE RESET DANS UN
ENVIRONNEMENT DANGEREUX.
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
Rev 4 Dec.16 2 4119008
Preface
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
manufactured or sold by Sierra Wireless Inc. or its affiliates under one or more
patents licensed from InterDigital Group and MMP Portfolio Licensing.
®
. This product is
Copyright © 2016 Sierra Wireless. All rights reserved.
Trademarks Sierra Wireless
are registered trademarks of Sierra Wireless.
Windows
Corporation.
Macintosh
the U.S. and other countries.
QUALCOMM
under license.
Other trademarks are the property of their respective owners.
®
, AirPrime®, AirLink®, AirVantage® and the Sierra Wireless logo
®
and Windows Vista® are registered trademarks of Microsoft
®
and Mac OS X® are registered trademarks of Apple Inc., registered in
®
is a registered trademark of QUALCOMM Incorporated. Used
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 6:00 pm PST
Corporate and product information Web: sierrawireless.com
Rev 4 Dec.16 3 4119008
Contents
Introduction to the MP70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Modes and Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Installation and Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Tools and Materials Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Step 1—Insert the SIM Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Step 2—Mount and Ground the MP70 Chassis. . . . . . . . . . . . . . . . . . . . . . 11
Cabling Concerns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Cable Strain Relief . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Step 3—Connect the Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Recommended Antenna Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Step 4—Connect the Data Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Step 5—Connect the Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
DC Voltage Transients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Power Connector on the MP70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Connect the Router to the Vehicle’s Electrical System . . . . . . . . . . . . . .16
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
I/O Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
I/O Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Step 6—Check the Router Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
LED Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Ethernet LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Step 7—Configure the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Reboot the MP70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Rev 4 Nov.16 4 4119008
Contents
Reset the MP70 to Factory Default Settings . . . . . . . . . . . . . . . . . . . . . . . . 30
Recovery Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Wi-Fi Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Radio Frequency Bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Radio Module Conducted Transmit Power. . . . . . . . . . . . . . . . . . . . . . . . . . 40
Carrier Aggregation Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Important Information for North American Users . . . . . . . . . . . . . . . . . . . . . 44
RF Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
EU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
DC Power Cable (Black Connector). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
AC Power Adapter (Black Connector) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
AC Power Adapter Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
AC Power Adapter Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
AC Power Adapter Environmental Specifications . . . . . . . . . . . . . . . . . .48
AC Power Adapter Reliability and Quality Control . . . . . . . . . . . . . . . . . .49
AC Power Adapter Safety Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
AC Power Adapter EMC Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
AC Power Adapter Hazardous Substances . . . . . . . . . . . . . . . . . . . . . . .49
AC Power Adapter Energy Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Rev 4 Nov.16 5 4119008
1: Introduction to the MP70
The AirLink MP70 is a high performance, LTE Advanced vehicle router developed
specifically for mobile mission-critical applications in public safety, transit, and field
services.
Offering high power, long range Gigabit Wi-Fi and Gigabit Ethernet, and up to 300
Mbps downlink speed over LTE Advanced, the AirLink MP70 unites the enterprise
network with the fleet and enables applications to work simultaneously, further and
faster from the vehicle area network (VAN) than ever before.
The AirLink MP70 supports advanced remote visibility and instant insight into the
vehicle area network (VAN), in-field applications and assets, and mobile workforces.
Purpose built for the vehicle, the AirLink MP70 delivers superior reliability and
uninterrupted operation in harsh mobile environments.
Key Features
• LTE Advanced
• 2.4 MHz/5 Gigabit (5 GHz) Wi-Fi
• 4 port Gigabit Ethernet
For information on configuring these features, refer to the ALEOS Software
Configuration User Guide.
1
Rev 4 Nov.16 6 4119008
Description
Power Connector
(See Connect the Power on page 14.)
mini-SIM 2FF Card holder
(See Insert the SIM Card on page 18)
Front Panel
Cellular Antenna Connector
Diversity Antenna Connector
Back Panel
9-pin RS-232 Serial Port
USB 2.0 Micro-AB Port
(See Ethernet on page 34.)
(See Connect the Antennas on
page 12.)
(See Serial Port on page 35.)
(See USB on page 34.)
Reset button
(See Reboot the MP70 and Reset the MP70 to
Factory Default Settings on page 30.)
Four RJ-45 Ethernet Port
GNSS Antenna Connector
LEDs (See LED Behavior on page 27.)
Wi-Fi Antenna Connector
Auxiliary I/O Ports
(See I/O Pins on page 20.)
(See Connect the Antennas on
page 12.)
Introduction to the MP70
Figure 1-1: MP70 Connectors, LEDs and SIM Card Holder
Rev 4 Nov.16 7 4119008
AirLink MP70 Hardware User Guide
Modes and Power Consumption
Table 1-1: Power Consumption Scenarios
Mode Scenario
b
Off
Standby
d
On
a. Power consumption was measured at 12 V.
b. All power is switched off. Ignition is low, but Vin remains connected.
c. The CPU and the radio are off, but the router can be woken by an I / O input voltage level or at
a configured time.
d. The CPU and the radio are on. When the router is idle (i.e. no traffic is being sent or received).
Ignition Off 17.28 mW
(1.4 mA)
c
Standby Mode 42.05 mW
(3.5 mA)
Typical Idle (No Wi-Fi) 2370 mW
Typical Idle (Wi-Fi) 3730 mW
Maximum 15,000 mW
Inrush Current 1.5 A @ 12 V (Averaged over 100 μs)
(197.24 mA)
(310.44 mA)
(1250 mA)
Power Consumptiona
Accessories
The following items come with the MP70 router:
• DC power cable
• Mounting screws
• Quick Start Guide
The following items can be ordered separately from Sierra Wireless:
• Universal AC power adapter
· Voltage input: 100–240 VAC
· Current output: 1.5 A
· Part number: 2000492
• I/O Auxiliary cable
· SKU number: 6001004
Warranty
The MP70 comes with a 3-year warranty, and has an optional 2-year warranty
extension.
Rev 4 Nov.16 8 4119008
2: Installation and Startup
This chapter shows how to connect, install and start the Sierra Wireless MP70. It also
describes the front panel LEDs, and I/O functionality.
Note: Sierra Wireless recommends that a professional vehicle electronics installer perform the
installation. An experienced installer typically completes a standard installation in approximately
half an hour.
Tools and Materials Required
• A SIM card (provided by your mobile network operator)
• #1 Phillips screwdriver
• Laptop computer with Ethernet cable
• AC or DC power cable (available from Sierra Wireless or use your own custom
cable)
• Cellular antenna
• Recommended—diversity antenna
• Optional:
· GNSS antenna
· Wi-Fi antennas
· 9-pin connection cable for the RS-232 port
· 8-pin auxiliary I/O connector cable
1
2
Caution: The router has a hardened case for use in industrial environments and vehicles. If
you are installing it in these types of environments, use cables designed and specified for use
in these types of environment to avoid cable failure.
Installation Overview
The steps for a typical installation are:
1. Insert the SIM card(s)— page 10.
2. Mount and ground the MP70 chassis—page 11.
3. Connect the antennas— page 12.
4. Connect the data cables— page 14.
5. Connect the power— page 14.
6. Check the router operation— page 26.
1. Applies only to the MP70 Wi-Fi model
Rev 4 Nov.16 9 4119008
AirLink MP70 Hardware User Guide
Note the orientation of notched corners
SIM card cover
#1 Phillips screws
Lower SIM card
Upper SIM card
for proper SIM card alignment.
(SIM Slot 1)
(SIM Slot 2)
7. Configure the software— page 29.
The following sections describe these steps in detail. Read these sections
carefully before performing the installation.
Note: Depending on where you are installing the MP70, you may want to mount the router
before connecting the antenna, cables and power.
Step 1—Insert the SIM Cards
The AirLink MP70 has two mini-SIM (2FF) card slots. The upper slot is Slot 1 and
the lower slot is Slot 2. By default, the SIM card in Slot 1 is the Primary SIM card.
If you are using only one SIM card, Sierra Wireless recommends that you install it
in Slot 1.
If the SIM card (or SIM cards) have not already been installed, insert the SIM
cards into the router before connecting any external equipment or power to the
router.
To install the SIM cards:
1. Use a #1 Phillips screwdriver to remove the SIM card cover.
2. Orient the SIM card(s), as shown in Figure 2-1. The gold contacts on the
upper SIM card face down, and the gold contacts on the lower SIM card face
up. If you are using only one SIM card, insert it in the upper SIM slot (Slot 1).
3. Gently slide the SIM cards into the slots until they click into place.
To remove a SIM card, press the SIM card in, and release it. Gently grip the
SIM card and pull it out.
Rev 4 Nov.16 10 4119008
Figure 2-1: Installing the SIM Card
4. Replace the SIM card cover.
Installation and Startup
Use this mounting
hole to ground
the MP70.
176.00 mm
6.93 in
50.00 mm
1.97 in
Mounting holes
5 mm
Mounting holes
5 mm
Step 2—Mount and Ground the MP70 Chassis
The MP70 should not be mounted in the driver’s area of the vehicle or in areas
where it can distract the driver. Mount it in accordance with accepted after-market
practices and materials.
Sierra Wireless strongly recommends that you always ground the chassis using
the unpainted mounting hole shown if Figure 2-2.
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.
The MP70 has 4 mounting holes, as shown in Figure 2-2. Use the mounting
screws that came with the MP70 to secure it in place.
Rev 4 Nov.16 11 4119008
Figure 2-2: Mounting and Grounding the MP70
For DC installations (with a fixed “system” ground reference), Sierra Wireless
recommends always grounding the MP70 chassis to this system ground
reference.
To ensure a good grounding reference, either:
• Attach the MP70 to a grounded metallic surface.
AirLink MP70 Hardware User Guide
• Connect one end of a short 18 AWG or larger gauge wire to the unpainted,
upper right mounting hole (see Figure 2-2) and connect the other end to the
vehicle chassis.
Cabling Concerns
Separate MP70 antenna, data, and power cables from other wiring in the vehicle
and route away from sharp edges.
Cable Strain Relief
Sierra Wireless recommends using cable strain relief for installations in highvibration environments.
Place the cable strain relief within 200 mm (8") of the MP70 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 MP70,
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, i.e. the cable
should not be taut and should not pull the power connector at an angle.
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.
The MP70 has three SMA female antenna connectors:
• Cellular antenna connector: Primary receive and transmit antenna connector
• Cellular Diversity antenna connector
• GNSS antenna connector
The AirLink MP70s with Wi-Fi capability also have:
• Three reverse polarity SMA male connectors for Wi-Fi antennas.
Sierra Wireless recommends cabling out the antennas.
The MP70 supports 2.4 MHz (2400– 2500 MHz) and 5GHz
(4900–5900 MHz) Wi-Fi bands.
For regulatory requirements concerning antennas, see Maximum Antenna Gain
on page 45.
Note: The antenna should not exceed the maximum gain specified in RF Exposure on
page 44. In more complex installations (such as those requiring long lengths of cable and/
or multiple connections), 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.
Rev 4 Nov.16 12 4119008
To install the antennas:
Cellular antenna connector
Diversity antenna connector
GNSS antenna connector
Wi-Fi antenna connectors
123
Installation and Startup
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 second receive path and a second transmit path.
If you are not using the second antenna, it can be disabled in ACEmanager,
but Sierra Wireless recommends always using it, as disabling the second
antenna prevents it being used in both the 3G and 4G applications.
3. If used, connect a GNSS antenna to the SMA GNSS antenna connector.
Mount the GNSS antenna where it has a good view of the sky (at least 90
4. For Wi-Fi-capable routers, connect the Wi-Fi antenna(s) to the SMA Wi-Fi
connectors:
· For MIMO 1x1, connect the antenna to Wi-Fi connector 1.
· For MIMO 2x2, connect the antennas to Wi-Fi connectors 1 and 2.
· For MIMO 3x3, connect antennas to all 3 Wi-Fi connectors.
The default ALEOS configuration is MIMO 3x3. If you are using another MIMO
configuration, reconfigure the MIMO setting in ALEOS. For information on
configuring MIMO, refer to the Wi-Fi chapter of the ALEOS Software Configuration User Guide for the MP70.
⁰).
Note: If the antennas are located away from the ro uter, 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 2-3: Antenna Connectors
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AirLink MP70 Hardware User Guide
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 MP70, Sierra Wireless recommends a minimum antenna
separation of 214 mm for best results, and if necessary, a separation of 107 mm
for acceptable results.
Table 2-1: Frequency / Wavelength Range and Recommended Antenna Separation for the
AirLink MP70
Service Wavelength Range for MP70 Frequency
(MHz)
LTE Longest λ 700 428 214 107
LTE Shortest λ 2600 115 58 29
Wavelength
(
λ) (mm)
Best Antenna
Separation (mm) (1/2
Good Antenna
Separation (mm) (1/4
λ)
Step 4—Connect the Data Cables
The MP70 has three ports for connecting data cables:
• USB (Micro-AB)
• Ethernet (RJ-45) —Use a Cat 5e or Cat 6 Ethernet cable
• Serial Port (9-pin RS-232)
Step 5—Connect the Power
The router’s power supply cable must be connected to the vehicle’s fuse box, and
installed along the vehicle wall, always inside the vehicle cabin and must not
cross the vehicle’s firewall protection. Always follow the vehicle manufacturer’s
recommendations for electrical accessories connections. All components used in
the electrical connection to the vehicle should be UL Listed.
The AirLink MP70 comes with a 3 meter (10 ft.) DC power cable. You can also
purchase an optional AC adapter.
λ)
Note: Electrical installations are potentially dangerous and should be performed by
personnel thoroughly trained in safe electrical wiring procedures.
The MP70 supports an operating voltage of 7 V– 36 V, but since low voltage
standby mode is enabled by default, you must supply more than 9 volts at startup.
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).
Rev 4 Nov.16 14 4119008
Installation and Startup
GPIO
Pin 4
Pin 3
Ignition
Pin 1
Power
Green
Red
White
Sense
Black
Pin 2
Ground
For more information, see wiring diagrams on page 17.
For I/O information,
see page 19.
Fusing
For DC installations, Sierra Wireless recommends fusing the power input using a
7.5 A, fast blow fuse, recommended to have no more than +/- 10% de-rating over
the operating temperature range.
DC Voltage Transients
The AirLink MP70 has built-in protection against vehicle transients including
engine cranking (down to 5.0V) and load dump, so there is no need for external
power conditioning circuits. For details, see Industry Certification for Vehicles on
page 32.
Power Connector on the MP70
Table 2-2: Power Connector Pin and DC Cable Wires
Pin Name Associated DC
Rev 4 Nov.16 15 4119008
Figure 2-4: DC Power Cable Connections (Colors indicate DC cable wire colors.)
Description Type
Cable Wire Color
1 Power Red Main power supply for device
Note: If you want to turn the MP70 on/off using a control line,
such as a vehicle ignition line, Sierra Wireless strongly recommends that you connect the control/ignition line to Pin 3 and
apply continuous power on Pin 1.
2 Ground Black Main device ground PWR
PWR
AirLink MP70 Hardware User Guide
Table 2-2: Power Connector Pin and DC Cable Wires
Pin Name Associated DC
Cable Wire Color
3 Ignition
Sense
4 GPIO Green User configurable digital input/output or analog voltage sensing
White Ignition Sense: Connected to the vehicle ignition or an external
Description Type
switch. The MP70 is off when this pin is either open-circuit or
grounded, and on when this pin is connected to power.
Note: If you do not connect pin 3 to the ignition, you MUST
connect it to the positive terminal of your power supply or
battery. If you are using a Sierra Wireless AC adapter, the
connection is inside the cable.
input. Connect to switch, relay or external device. For more
information, see I/ O Configuration on page 19 and refer to the
ALEOS Software Configuration User Guide.
Connect the Router to the Vehicle’s Electrical System
To connect the router to the vehicle’s electrical system:
1. Ensure that the vehicle is turned off.
2. Remove the key from the ignition.
3. Disconnect the vehicle’s battery:
a. Disconnect the negative terminal first.
b. Disconnect the positive terminal.
4. Connect the black (ground) wire on the DC power cable to the vehicle
chassis.
5. Ensure that the MP70 is grounded. (See Step 2— Mount and Ground the
MP70 Chassis on page 11.)
6. Use a 7.5 A, fast blow fuse, recommended to have no more than +/- 10% de-
rating over the operating temperature range, to connect the red (power) wire
on the DC power cable to the vehicle’s fuse box. (See Figure 2-5.)
7. Connect the white wire (Ignition) on the DC power cable to the ignition signal
from the vehicle.
8. Connect the DC power cable to the MP70.
9. Reconnect the vehicle’s battery:
a. Connect the positive terminal first.
b. Connect the negative terminal.
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Rev 4 Nov.16 16 4119008
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