CalAmp LMU-5541 Manual

LMU-5541 Hardware & Installation Guide
LMU-5541™
Hardware and Installation Guide
IMPORTANT: DO NOT INSTALL OR USE THE SOFTWARE OR DOCUMENTATION UNTIL YOU HAVE READ AND AGREED
TO THE LICENSE AGREEMENT AND REVIEWED
THE LIMITED WARRANTY AND REGULATORY INFORMATION.
1 Introduction
Welcome to the LMU-5541™Hardware and Installation Guide. This manual is intended to give you information on the basic setup and
installation of the CalAmp LMU-5541™product(s) including hardware
descriptions, environmental specifications, wireless network overviews and device installation.
1.1 About This Manual
The LMU-5541™is one of the most flexible economy mobile tracking hardware products available. In order to accurately describe the
functionality of these units we have broken this manual into the following sections:
System Overview – A basic description of a CalAmp LMU-5541™based tracking system. This includes a description of roles
and responsibilities of each of the CalAmp components as well as a brief overview of the wireless data technologies used by the
LMU-5541™.
Hardware Overview – Describes the physical characteristics and interfaces of the LMU-5541™.
Installation and Verification – Provides guidance for the installation of the LMU-5541™in a vehicle and instructions on how
to verify the installation is performing adequately.
1.2 About The Reader
In order to limit the size and scope of this manual, the following assumptions have been made about the reader.
You are familiar with GPS concepts and terminology
You have some experience with installing equipment in vehicles
You are familiar with the use of AT Commands
You are familiar with the use of terminal programs such as HyperTerminal or PuTTY
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LMU-5541 Hardware & Installation Guide
CalAmp is a leading provider of wireless communications products that enable anytime/anywhere access to critical information, data and
entertainment content. With comprehensive capabilities ranging from
product design and development through volume production, CalAmp delivers cost-effective high quality solutions to a broad array of customers
and end markets. The Company also provides wireless data
communication solutions for the telemetry and asset tracking markets, private wireless networks, public safety communications and critical
infrastructure and process control applications. For additional
information, please visit the Company’s website at www.calamp.com
(http://www.calamp.com/) .
1.4 About the CalAmp Location Messaging Unit-LMU-5541™
The CalAmp Location and Messaging Unit-LMU-5541™(LMU-5541™) is a mobile device that resides in private, commercial or government
vehicles. The LMU-5541™is a single box enclosure incorporating a
processor, a GPS receiver, BLE 5.0 interface standard, LTE Cat 4 connectivity, a wireless data modem, and a vehicle-rated power supply. The
LMU-5541™also supports inputs and outputs to monitor and react to
the vehicular environment and/or driver actions.
Flexibility
The LMU-5541™features CalAmp's industry leading advanced on-board alert engine that monitors vehicle conditions giving you the most
flexible tracking device in its class. The PEG™(Programmable Event
Generator) application supports hundreds of customized exception-based rules to help meet customers' dynamic requirements. Customers can
modify the behavior of the device to meet with a range of applications
preprogrammed before shipment or in the field. Combining affordability and device intelligence with your unique application can give you
distinct advantages over your competition.
Over-the-Air Serviceability
The LMU-5541™also incorporates CalAmp's industry leading over-the-air device management and maintenance system software, PULS™
(Programming, Updates, and Logistics System). Configuration
parameters, PEG rules, and firmware can all be updated over the air. Our web-based maintenance server, PULS™scripts, and firmware, can all
be updated over-the-air. PULS™offers out-of-the-box hands free
configuration and automatic post-installation upgrades. You can also monitor unit health status across your customers' fleets to quickly identify
issues before they become expensive problems.
2 System Overview
2.1 Overview
The entire purpose behind a fleet management system is to be able to remotely contact a vehicle, determine its location or status, and do

something meaningful with that information. This could include displaying the vehicle location on a map, performing an address look-up,
providing real-time driving directions, updating the vehicles ETA, monitoring vehicle and driver status or dispatching the vehicle to its next
pick up.
These functions, of course, are completely dependent on the capabilities of the vehicle management application. The role of the CalAmp LMU-
5541™is to deliver the location information when and where it is needed.
A typical fleet management system based on a CalAmp device includes the following components:
A wireless data network
An LMU-5541™
Host Device (GPS NMEA only)
An LM Direct™communications server
Backend mapping and reporting software which typically includes mapping and fleet reporting functions
PULS™
LMU Manager™
1.3 About CalAmp
LMU-5541 Hardware & Installation Guide
Basic System Architecture
2.2 Component Descriptions
2.2.1 Wireless Data Network
The Wireless Data Network provides the information bridge between the LM Direct™server and the LMU-5541™. Wireless data networks can
take a variety of forms, such as cellular networks, satellite systems or local
area networks. Contact the CalAmp sales team for the networks available to the LMU-5541™.
2.2.2 LMU-5541™
The LMU-5541™is responsible for delivering the location and status information when and where it is needed. Data requests mainly come from
the following sources:
PEG™script within the LMU-5541™
A location or status request from the LM Direct™server
A location or status request from LMU Manager
An SMS request made from a mobile device such as a customer’s cell-phone
In some cases, it is necessary to run an application in the vehicle while it is being tracked by the backend software. Such examples could include
instant messaging between vehicles or a central office, in-vehicle mapping or
driving directions, email or database access. In most of these cases you will be using the LMU-5541™as a wireless modem as well as a vehicle-
location device.
2.2.3 LM Direct™Server
LM Direct™is a CalAmp proprietary message interface specification detailing the various messages and their contents the LMU-5541™is
capable of sending and receiving. This interface allows System Integrators to
communicate directly with LMU-5541's™. Please refer to the LM Direct Reference Guide for details.
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2.2.4 Backend Software
Backend software is a customer provided software application. Regardless of its purpose, one of its primary functions is to parse and present data
obtained from the LM Direct™server. This allows the application to do any
of the following:
Display location database on reports received from the LMU-5541™in a variety of formats Present
historic information received from the LMU-5541™, typically in a report/chart style format
Request location updates from one or more LMU-5530s™
Update and change the configuration of one or more LMU-5530s™
2.2.5 PULS™
PULS™(Programming, Update and Logistics System) is CalAmp’s web-based maintenance server offering out-of-the-box hands free
configuration and automatic post-installation upgrades. PULS™provides a means for
configuration parameters, PEG scripts, and firmware to be updated Over-The-Air (OTA) and allows CalAmp customers to monitor unit health
status across your customers’ fleets to quickly identify issues before they
become expensive problems.
2.2.6 LMU Manager™
LMU Manager is the primary configuration tool in the CalAmp system. It allows access to almost every feature available to the LMU-5541™.
Unlike the backend software, it has the option of talking directly to an
LMU-5541™or making a request forwarded by the LM Direct™server.
For further details on using LMU Manager, please refer to the LMU Manager Users Guide.
3 Hardware Overview
3.1 Location Messaging Unit-LMU-5541™
3.1.1 LMU-5541™Handling Precautions
Electrostatic Discharge (ESD)
Electrostatic discharge (ESD) is the sudden and momentary electric current that flows between two objects at different electrical potentials caused
by direct contact or induced by an electrostatic field. The term is usually
used in the electronics and other industries to describe momentary unwanted currents that may cause damage to electronic equipment.
ESD Handling Precautions
ESD prevention is based on establishing an Electrostatic Protective Area (EPA). The EPA can be a small working station or a large
manufacturing area. The main principle of an EPA is that there are no highly charging

materials in the vicinity of ESD sensitive electronics, all conductive materials are grounded, workers are grounded, and charge build-up on ESD
sensitive electronics is prevented. International standards are used to define
typical EPA and can be obtained for example from International Electro-technical Commission (IEC) or American National Standards Institute
(ANSI).
This ESD classification of the sub assembly will be defined for the most sensitive component, therefore the following classifications apply:
Class 1B – Human Model (< 1 kV)
Class M1 – Machine Model (< 100V)
When handling the LMU-5541’s™main-board (i.e. sub assembly) by itself or in a partial housing proper ESD precautions should be taken. The
handler should be in an ESD safe area and be properly grounded.
WARNING: This product can expose you to chemicals including carbon black, nickel, & bisphenol A, which are known to the State of
California to cause cancer and birth defects or other reproductive harm. For more
information go to https://www.P65Warnings.ca.gov.
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GPS Ceramic Patch Handling
When handling the sub assembly it may be natural to pick it up by sides and make contact with the antenna boards. In an uncontrolled ESD
environment contact with the center pin of ceramic patch antenna can create a path
for electrostatic discharge directly to the GPS Module. The GPS Module is very sensitive to ESD and can be damaged and rendered non-
functional at low levels of ESD.
One should avoid contact with the center pin of the patch during handling.
Packaging
Anytime the sub assembly is shipped and it is not fully packaged in its final housing it must be sealed in an ESD safe bag.
Electrical Over-Stress (EOS)
The GPS receiver can be damaged if exposed to an RF level that exceeds its maximum input rating. Such exposure can happen if a nearby source
transmits an RF signal at sufficiently high level to cause damage.
Storage and Shipping
One potential source of EOS is proximity of one LMU-5541™GPS Antenna to another LMU-5541™GSM Antenna. Should one of the units be
in a transmit mode the potential exists for the other unit to become damaged.
Therefore any LMU-5541™GPS Antenna should be kept at least four inches apart from any active LMU-5541™GSM Antenna or any other
active high power RF transmitter with power greater than 1 Watt.
3.1.2 Battery Back-up devices
Please properly dispose of the battery in any of the CalAmp products that utilize one, do not just throw used batteries, replaced batteries, or units
containing a back-up battery into the trash. Consult your local waste
management facility for proper disposal instructions.
3.1.3 Environmental Specifications
The LMU-5541™is designed to operate in environments typically encountered by fleet vehicles, including wide temperature extremes, voltage
transients, and potential interference from other vehicle equipment.
To ensure proper operation in such an environment, the LMU-5541™was subjected to standard tests defined by the Society of Automotive
Engineers (SAE). The specific tests included temperature, shock, vibration, and
EMI/EMC. These tests were performed by independent labs and documented in a detailed test report. In accordance with Appendix A of SAE
J1113 Part 1, the Unit is considered a “Functional Status Class B, Performance
Region II” system that requires Threat Level 3 Testing.
The following shows the environmental conditions the LMU is designed to operate in and the relevant SAE tests that were performed. No formal
altitude tests were conducted.
Dimensions
5.8 x 4.0 x 1.2” (146 x 102 x 40 mm)
Weight
8oz (227g)
Temperature
-30° to +70° C (connected to primary power)
-40° to +85° C (storage)
Humidity
95% RH @ 50° C non-condensing
Shock and Vibration
U.S. Military Standard202G and 810G, SAE J1455
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EMC/EMI
IEC 61000-4-2 (4KV test)
Electromagnetic Compatibility (EMC)
EMC compliant for a ground vehicle environment SAE
Test: IEC 61000-4-2 (4KV test) Parts 2, 12, 21 and 41
Operating Voltage Range
The LMU-5541™supports vehicles with 12 or 24 VDC systems including transients and electrical system noise; this includes ranges from 8 to
32 VDC.
Electrostatic Discharge (ESD)
No damage or performance degradation after the ESD disturbance.
SAE Test: SAE J1113 Part 13
Power Consumption
Operating Voltage

8 to 32 Volts (running), 9-30 (starting)
Power consumption
< 2mA @ 12VDC (Deep Sleep)
Typical 160mA @ 12VDC (Sleep on Cellular Network)
Typical 270 mA @ 12VDC (continuous transmit)
The following pertains to devices that have a JBUSconnector and a 4-pin
LMU power cable (part number 5C888) attached to the LMU.
Caution: Some JBUS vehicles operate on 24VDC. Insituations where ignition
and/or power is hard wired to the 4-pin LMU power cable, it is imperative to
have matched voltage levels. Any mismatched voltages can create a problem.
For example do not use 24VDC power from the JBUS simultaneoulsy with 12VDC
from the LMU power cable, or vice versa, as this could damage the board.
3.2 LMU-5541™Connectors
The LMU-5541™offers 12 connectors to access power, I/O, serial communications and other expansion capabilities. These connectors are:
SIM access SIM Access Slot
Cellular main SMA
External GPS SMA (with tamper monitoring, 3.0v)
External WiFi SMA RP
2X Ethernet10/100 RJ45
USB Host Type A
USB On-The-Go (mini)
Serial (RS232/485) DB-9
Serial 5 Pin Molex (switch power TTL Levels)
Power, Ignition, I/O 4-Pin Molex
I/O connector 22-Pin Molex
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LMU-5541™Connectors
3.2.1 Power Connector
The LMU-5541™uses a 4 pin Molex 43045-0402 connector as its power connection. The pin out is as follows:
Pin Signal Name Description 5C888 Color Input or Output
1 VIN Power Red Power / Input
2 GND Ground Black Ground
3 ADC1 Analog to Digital Input 1 Green Input
4 INPUT 0 Input 0 / Ignition Sense – Digital Input White Input
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LMU-5541™Header (looking into LMU)
3.2.2 I/O Connector
The LMU-5541™’s features expanded I/O capabilities via its 22-Pin Molex 43045-2202 connector. Its pin-out is as follows:
Pin Signal Name Description 5C889 Color Input or Output
1 Input 1 Input 1 – Digital Input Blue Input
2 Input 2 Input 2 – Digital Input Orange Input
3 Input 3 Input 3 – Digital Input Violet Input
4 Input 4 Input 4 – Digital Input Gray Input
5 Input 5 Input 5 – Digital Input Green & White Input
6 Input 6 Input 6 – Digital Input Blue & White Input
7 Input 7 Input 7 – Digital Input Black & White Input
8 1BB T Data 1 Bit Bus Data (T) Green & Black Input/Output
9 1BB GND 1 Bit Bus Ground Black Ground
10 1 BB R Data 1 Bit Bus Data (R) Orange & Black Input/Output
11 1 BB Gnd 1 Bit Bus Ground Black Ground
12 Output 0 Output 0 - Starter Disable Relay Driver Green Output
13 Output 1 Output 1 - Digital Output Brown Output
14 Output 2 Output 2 - Digital Output Yellow Output
15 Output 3 Output 3 - Digital Output Blue & Orange Output
16 Output 4 Output 4 - Digital Output Green & Black & Orange Output
17 Output 5 - LED Output 5 - LED 1 Driver Red & Green Output
18 Output 6 - LED Output 6 - LED 2 Driver Orange & Green Output
19 ADC 2 Analog to Digital Input 2 Black & Red Input
20 ADC 3 Analog to Digital Input 3 White & Red Input
21 ADC 4 Analog to Digital Input 4 Orange & Red Input
22 ADC 5 Analog to Digital Input 5 Blue & Red Input
LMU-5541™Header (looking into LMU)
3.2.3 Serial Interface Connectors
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The LMU-5541™offers 2 serial interface connections (Host/Aux1 and DB-9 SerialAux 2) on its front face. Host/AUX1 is provided via a Molex
43650-0501 connector using the following pin out.
Pin Signal Name Description 134364-SER Color Input or Output
1 VIN_FILT Filtered LMU Power Red Power Supply
2 VCC3V3 3.3V Power Orange Power Supply

3 Ground Ground Black Ground
4 TX Transmit Data Blue Input to LMU
5 RX Receive Data Green Output From LMU
Serial Interface Connector
Users should only use CalAmp approved serial adapters for these connections.
3.2.4 Serial Interface Cables & Accessories
Serial Connectivity is a one cable solution,you can use either part numbers 134364-SER or 134364-MDT
LMU Serial Cable (Part Number 134364-SER)
This is the standard serial cable used with most LMU products.
LMU™Serial Adapter
or
LMU Serial Cable (Part Number 134364-MDT-SER)
The 134364-MDT Serial Cable has the same features as the 134364 product listed above except the MDT serial cable has an extra feature that
allows power voltage adjustment.
LMU™Serial Adapter
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NOTE: CalAmp previously used the following serial cables. The following two cables are no longer in production. However, these legacy cables
are still compatible with LMU-5541™.Part Number 134364-SER has effectively
replaced Part Number 133337-5 while Part Number 134364-MDT has replaced Part Number 133564-1. The description for the legacy cables
are listed below.
Serial Combo Adapter (Part Number 133337-5)
The Serial Combo Adapter is designed to allow laptops, and PDAs to communicate with the LMU-5541™via a direct serial connection. While
using this cable, the LMU-5541™will accept AT Commands and act as a
modem. No setup of the LMU-5541™is necessary to use this cable.
Serial Combo Adapter (Part Number 133564-1)
The Serial Combo Adapter is designed to allow laptops, MDTs, barcode readers and other devices to communicate with the LMU-5541™via a
direct serial connection. While using this cable, the LMU-5541™will accept
AT Commands and act as a modem. No setup of the LMU-5541™is necessary to use this cable. The 133564-1 also has switched power
capabilities which allow for power to the serial device to be regulated.
This cable will allow ‘dumb’ serial devices to use the LMU-5541™to pass data to/from a remote application. In general, when in MDT mode,
the LMU-5541™will package any data received over the serial port into a
‘User Message’ and send it to its inbound address. Any User Messages received from the remote application that have an appropriate Message
Type will be passed from the LMU-5541™to the dumb serial device. The setup
of this mode is controlled by S130 - 139 and is described in detail later in this document.
3.2.5 Accessories
See the Harness Diagrams page for more information on LMU accessories, and supported products table.
Do NOT connect multiple power supplies or multiple grounds to the LMU-5541 and JPod2. Connecting multiple power supplies or multiple
grounds may lead to excessive current draw through the LMU and JPod2.
3.3 GPS Receiver
Location Technology 55 Channel
Enhancement Technology Hybrid GPS, GLONASS, SBAS Engine (WAAS, EGNOS, MSAS)
~2.0m CEP Open Sky (SBAS 24 hours static)
-167 dBm
-156 dBm (hot start)
-148 dBm (cold start)
3 sec @ -130 dBm
Location Accuracy
Tracking Sensitivity
Acquisition Sensitivity
AGPS capable
3.4 RF Connector
LMU-5541™ uses an SMA connector with a 50 Ω impedance.
3.5 I/O Descriptions
The LMU-5541™provides the following inputs and outputs (I/O):
Digital Inputs
Input 0: Ignition Sense (Always biased low)
Input 1: Generic Digital Input (Biased high or low/ S-158 Bit 1)
Input 2: Generic Digital Input (Biased high or low/ S-158 Bit 2)
Input 3: Generic Digital Input (Biased high or low/ S-158 Bit 3)
Input 4: Generic Digital Input (Biased high or low/ S-158 Bit 4)
Input 5: Generic Digital Input (Biased high or low/ S-158 Bit 5)
Input 6: Generic Digital Input (Biased high or low/ S-158 Bit 6)
Input 7: Generic Digital Input (Biased high or low/ S-158 Bit 7)
Input 8: Motion Sensor (low = No motion, high = motion)
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Input 9: Reserved
Input 10: Power State (low = external power, high = internal battery)

Input 11: Vbatt Low
Analog to Digital Inputs
A/D 0: External Power Supply Monitor
A/D 1: External A/D Input (From Power Connector)
A/D 2: External A/D Input (From 22 Pin I/O Conenctor)
A/D 3: External A/D Input (From 22 Pin I/O Conenctor)
A/D 4: External A/D Input (From 22 Pin I/O Conenctor)
A/D 5: External A/D Input (From 22 Pin I/O Conenctor)
A/D 6: Internal Battery Voltage
A/D 7: GPS Antenna Voltage
Outputs:
Output 0: Standard Open Collector Relay Output
Output 1: Standard Open Collector Relay Output
Output 2: Standard Open Collector Relay Output
Output 3: Standard Open Collector Relay Output
Output 4: Standard Open Collector Relay Output
Output 5: LED Driver Output 1
Output 6: LED Driver Output 2
iButton / 1 Bit Bus
iButton ID Support
1Wire bus with current boost for temperature sensors
3.5.1 Ignition and Inputs
The LMU-5541™provides up to 7 High/low selectable inputs and one Ignition Sense input.. These inputs are protected from typical vehicle
transients and can be directly connected to most vehicle level logical inputs from
4 volts up to the vehicle power input level (typically 12 VDC). Their input impedance is approximately 10k . One of these inputs is dedicated to
sensing the vehicle’s ignition status to provide for flexible power
management. The other seven inputs may be used to sense vehicle inputs such as cooling unit operation, a hidden driver “Panic” switch, taxi on-
duty/off-duty meter status or many others.
The ignition input is pulled to ground through the 10k resistance, where the other inputs can be configured to be normally High (i.e. pulled to
+12v through a 200K10k resistor) or Low (i.e. pulled to ground through a
100K10k resistor). The diagrams below show how to connect the inputs in both a high- and low-biased configuration:
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Sample Input Wiring
3.5.2 Open Collector Outputs
The LMU’s outputs are designed to drive external relays. These outputs provide a high-current, open-collector driver that can sink up to 200 mA
each. These drivers may be used to drive external relays that can then control
vehicle functions such as door locks, fuel shut-off valves, sirens and lights. If additional current is required to drive the relays, external circuitry
can be added to source the current. This diagram is a typical use of an output
to drive a relay.
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Sample Relay Wiring
3.5.3 LED Outputs
The LMUs 2 LED outputs are designed specifically to control external LEDs. The LED outputs have two states. When on, they provide 3.3V to
the external connector through a 100ohm series resistor. When off, these
outputs are high impedance
3.5.4 Status LEDs
The LMU-5541™is equipped with five Status LEDs; Power, BT, WiFi, GPS, COMM (wireless network). The LEDs use the following blink
patterns to indicate service:
LED #1 (Power LED - Red/Green) Definitions
Condition LED 1
LMU Off Off
U-Boot Red Solid
Kernel Start Green Solid
LMU On Red Solid
LED #2 (BT LED - Red/Green) Definitions
Condition LED 2
U-Boot Red Solid
Kernel Start Green Solid
BT Off No LED indication by default
BT On No LED indication by default
BT Connected No LED indication by default
Customer can define their own BT LED pattern by :
for Bluetooth LED Green :
echo 1 > /sys/class/gpio/gpio184/value
for Bluetooth LED Red:
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echo 1 > /sys/class/gpio/gpio185/value

PEG action 133 is currently not supported on 5541 Platform
LED #3 (WiFi LED - Red/Green) Definitions
Condition LED 3
U-Boot Red Solid
Kernel Start Green Solid
WiFi Off Off
Client - Not Connected Searching Green Slow Flashing
Client - Not Connected Authenticating Green fast Flashing
Client - Connected Green Solid
AP Mode Red Solid
LED #4 (GPS LED - Red/Green) Definitions
Condition LED 4
U-Boot Red Solid
Kernel Start Green Solid
GPS Off Off
GPS On Green Slow Blinking
GPS Time Sync Green Fast Blinking
GPS Fix Green Solid
4 Configuration and Activation
This section details how to quickly get an LMU-5541™provisioned and configured to point at a specific server. It is assumed that a PEG script
has already been created and is being managed through LMU Manager or PULS™,
the CalAmp Maintenance System.
We are making three assumptions to simplify the setup process:
You have created, installed and configured an LM Direct™Server to receive messages from the LMU-5541™. (See LM Direct™Reference
Guide for details)
You are using the standard wiring harness from CalAmp and the serial port expansion harness.
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You have created a HyperTerminal or Putty session.
You have contacted the CalAmp sales team regarding the network availability of the LMU-5541™.This device may not be supported for
all the carriers or networks listed in this section (CDMA-Verizon,
CDMA-Sprint, HSPA, GSM), for product availability consult the CalAmp sales team.
4.1 Quick Start - General Config
All LMU-5530s™must go through a common step during the configuration and provisioning process. Specifically, this is pointing the LMU to
your LM Direct™server, either via IP or a URL.
This configuration process is accomplished via a series of AT Commands:
1. Power up the LMU-5541™and connect a serial cable from the LMU to your
laptop
2. Open a terminal session to the LMU-5541™
3. Enter the address of the LM Direct™server:
AT$APP PARAM 2319,0,ddd.ddd.ddd.ddd
AT$APP PARAM 768,0,ddd.ddd.ddd.ddd (32-bit products only)
AT$APP PARAM 769,0,ppppp
Where ddd.ddd.ddd.ddd is the publicly addressable IPV4 address of your LM Direct™server and ppppp is the UDP port number.
4. Alternatively if a URL has been set up for your LM Direct™server, the LMU may be programmed with:
AT$APP PARAM 2319,0,myURL.MyCompany.Com
Where myURL.MyCompany.com is the URL assigned to the server.
5. Enter ATIC to verify the correct settings are displayed for your Inbound Server.
This configuration process is accomplished via a series of SMS Commands:
1. Power up the LMU-5541™and your handset
2. From the handset, send an SMS message to the LMU-5541™phone
number:
!RP,2319,0,ddd.ddd.ddd.ddd
!RP,768,0,ddd.ddd.ddd.ddd (32-bit products only)
!RP,769,0,ppppp
Where ddd.ddd.ddd.ddd is the publicly addressable IPV4 address of your LM Direct™server and ppppp is the UDP port number
3. Alternatively if a URL has been set up for your LM Direct™server, the LMU may be programmed with:
!RP,2319,0,myURL.MyCompany.Com
Where myURL.MyCompany.com is the URL assigned to the server
4. Verify your settings by sending the commands:
!RP?2319,0
!RP?769,0
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4.3 Interface Standards
4.2 Cellular/Network Connectivity
The LMU-5541 uses LTE (Long Term Evolution) Cat 4 technology, with HSPA/UMTS (3G) and GSM/GPRS (2G) support. The frequencies are
as follows (MHz)
LTE Cat 4
2100 (B1)/1900 (B2/B25/B39)/1800 (B3)/AWS 1700 (B4)/850 (B5/B26)/2600 (B7)/900 (B8)/700
(B12/B13/B28)/850 (B18/B19)/800 (B20)/2600 (B38)/2300 (B40)/2500 (B40/B41) MHz

HSPA/UMTS
2100 (I)/1900 (II)/AWS 1700 (IV)/850 (V)/800 (VI, XIX)/900 (VIII) MHz
GSM/GPRS
850/900/1800/1900 MHz
The LMU-5541 utilizes Dual-Mode Bluetooth Classic and BLE 4.2
WiFi - 802.11 a/b/g/n/ac (2.4 GHz & 5GHz) (1x1) Supports access point and/or client operations (10 concurrent users)
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The activation sequence for a GSM LMU would therefore look as follows:
AT$APP PARAM 2306,0,“myAPN.myOperator.com”
AT$APP PARAM 2306,1,“myAPN.myOperator.com”
AT$APP PARAM 2314,0,“myUSername”
AT$APP PARAM 2315,0,“myPassword”
For a blank APN the following command can be used:
AT$APP PARAM 2306,0,“” (for a blank APN)
Only enter this next command if you have been given a non-zero PIN as any errors may lock you out of the modem.
AT$APP PIN <SIM pin>
You can confirm activation by watching the Comm LED to see if it goes solid. You may also confirm activation using
AT$APP COMM STATUS?
A good response should look similar to the following:
GSM Registered: Yes
GPRS Registered: Yes
Connection: Yes
RSSI: -70 dBm
BER: 0
Channel: 0
Cell ID: 0
Base Station ID: 0
Local Area Code: 0
Network Code: 38
Country Code: 310
IMEI (Modem S/N): 500167110060440
IMSI (SIM S/N): 310380100521849
Phone Number:
GPRS APN: IP:Public
Quality of Srvc: 1,0,0,3,0,0
GSM Class: B
5 Installing the LMU
The installation of the LMU and its antennas can have a major impact on the LMU’s performance. It is recommended that installers be familiar
with the installation of GPS and cellular devices and are comfortable in a vehicle
environment.
5.1 Preparing for Installation
Be sure you have received all the LMU components you need. This must include:
The LMU to be installed
A power harness
GPS Antenna (for external devices)
Comm Antenna (for external devices)
Optional Components:
Input and output cables
Relays
LMU peripherals (i.e. Serial adapter, jPOD, TetheredLocator)
Host serial devices (e.g. PDAs, laptops, other serial devices)
5.2 Plan The Installation
Verify Power, Ground and Ignition. Be sure to check each source (power, ground and ignition) to ensure that the proper signaling exists. This
is typically accomplished with a multi-meter.
Before drilling any holes or running any wires, decide where each hardware component will be located (LMU, antennas, peripherals, etc.). Be
sure that the cables to the LMU are not bent or constricted in any way. Also
make sure that the LMU is kept free from direct exposure to the elements (sun, heat, rain, moisture etc...).
Be advised that an installation that violates the environmental specifications of the LMU will void the warranty.
The best way to ensure a trouble-free installation is to consider your options and make some decisions before you start. Take a look at the vehicle
and determine how to best install the LMU for the following purposes:
Accurate data gathering and simulation of how customers actually use your solution
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Ongoing monitoring and maintenance of LMU equipment
Accidental or intentional alteration of the equipment or cable connections
The following sections cover some of the issues to consider when planning your LMU installation.
5.2.1 Size and Placement of LMU Unit
The dimensions of the LMU should be taken into account, particularly when installing in a vehicle:
Whether you intend to place the LMU under a seat or into a cavity behind the vehicle’s interior molded trim, be sure the LMU will fit before
drilling any holes or running cable
Be certain that the cables running to the LMU will not be bent or constricted. Damage to the cables may impede the LMU’s performance.
Be certain that the installation point will not violate any of the LMU’s environmental specification (temperature, moisture, etc…) as improper
installation of the LMU may void the warranty.
See the LMU Environmental Specifications for the exact measurements and specifications of the LMU-5541™.

Typical installations will place the LMU under the vehicle dash board, or in the trunk. Make sure you can get access to the unit afterwards as
under some circumstances it may be necessary to add additional wiring or
connections to the LMU.
5.2.2 Placement of Antennas
There are effectively three options for placements of an antenna:
Roof-mount (magnetic or thru-hole)
Glass-mount
Covert (e.g. under the seat, dash, etc…)
Comm Antenna Placement Guidelines
The Comm. Antenna must be located at least 20cm away from vehicle passengers, other personnel, or bystanders in order to comply with FCC
radio frequency exposure limits.
Typically, the Comm antenna used by the LMU for wireless service is a standard 3-dB gain whip. It mounts with standard mounts (i.e. thru-hole,
magnetic mount or peel and stick) and requires a ground plane to work
properly. If possible, it should be located at least 3 feet from the GPS antenna. Ensure that the cable does not get crushed during installation.
Please note that the antennas provided by CalAmp combine both the GPS and Comm portions.
GPS Antenna Placement Guidelines
In order to maximize the performance of the LMU the GPS antenna should have a clear view of the sky. When installing the GPS antenna on a
vehicle, make sure that there are no obstructions close to the antenna that might
block the view 360° to the horizon. Things like air horns, lights, vents, etc… should not block the antenna beyond 5° above the horizon. The best
location is usually near the center of the roof; however it is also desirable to
locate the cellular antenna as far from the GPS antenna as is practical.
Examples of good and poor GPS antenna placements
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The received signal levels at the GPS antenna from the satellites are very low in power (approximately -136 dBm), so any blockage of the
antenna can affect the quality of the location computed by the receiver. Kinks or
tight knots in the antenna cable can also prevent the GPS receiver from operating properly. When laying out the antenna cable, care should be
taken so that the cable is not subjected to crushing or strain.
Placement of Combination and Internal Antennas
When dealing with combination antennas, it is more important to considered GPS performance over Comm performance. GPS signal strengths
are much lower than those typically seen by cellular networks supported by the
LMU. In order to maximize the performance the LMU should have a clear view of the sky as possible. When installing the GPS antenna in a
vehicle, make sure that there are as few obstructions as possible close to the LMU
that might block the view 360° to the horizon. As with stand-alone GPS antennas, nothing should not block the combination antenna beyond 5°
above the horizon with the best location being near the center of the roof. For
more covert installs, directly under the front or rear-windshields are also acceptable.
Examples of Good (Green), OK(Yellow) and Poor(Red) combo antenna placements
Examples OK(Yellow) and Poor(Red) internal antenna placements
5.2.3 Access to the SIM (Subscriber Identity Module) Card
When used in a GSM or iDEN network, each LMU uses a Subscriber Identity Module (SIM) card, which should be inserted before you install the
LMU for the first time. The SIM card is attached to the main-board inside
the housing of the LMU unit.
At some future time, you might need or want to replace the SIM card with a different one, so try to install the LMU in such a way that the cover
can be removed to make the SIM card accessible.
5.2.4 Protection from Heat
It is best not to place the LMU unit in an unusually warm location such as directly near heater vents, near hot engine components or in direct
sunlight. The maximum temperature that can be tolerated by the LMU is
described in the LMU Environmental Specifications section.
5.2.5 Visibility of Diagnostic LEDs
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Status LED lights on the front of the LMU unit can provide valuable information about the operation of the LMU. When feasible, attempt to
install the LMU in such a way that these lights can be seen with reasonable ease.
You may find it useful to be able to view the LEDs periodically to make sure that the LMU is operating properly. If at any time you should
encounter a problem with the LMU, you may need to read the LEDs in order to
troubleshoot the problem. If you cannot fix the LMU yourself, you will need to provide the LED information to CalAmp customer support.
For information about how to interpret the LEDs, see the Status LED Behavior section.
5.2.6 Cable Length
The RF cables which are provided for connecting to the LMU antennas should be used at the length provided. Do not cut cables. Instead, coil any
excess cable length, making sure not to crimp or flatten the antenna cable.
5.2.7 Moisture and Weather Protection
The LMU unit must be located where it will not be exposed to moisture or water. In a typical installation inside a vehicle this is not commonly
thought to be a concern; however, it might be best to avoid locating the LMU
below a car’s cup holders, or where rain might easily splash into the compartment when a door is opened.
5.2.8 Preventing Accidental or Unauthorized Modification
If you anticipate that fleet drivers or others might interfere with the LMUs once they are installed, take steps to be sure that it is not easy to
disconnect the antenna wiring, remove the LMU from its power source, etc.
Two common methods are the use of Tamper Proof Sealant or creation of PEG Script to detect power loss or GPS antenna disconnections.
5.3 Installing the LMU in a Vehicle
This section provides instructions for installing an LMU in a vehicle.

Be sure to consider the design decisions described in the previous sections. When you are ready to begin installing the LMU, follow these steps:
5.3.1 Place the LMU unit in the vehicle.
Typically, the LMU should be placed under the passenger seat or dashboard of the vehicle. LMUs with internal antennas should be placed to
maximize their GPS performance. A typical location include under the dash close
to the front wind-shield.
Attach the LMU to the solid body of the vehicle, not to plastic panels. The LMU can be placed out of sight by removing interior trim and molding
to expose available space, then replacing the trim once the LMU is in place.
5.3.2 Connect power, ignition, and ground.
The power input (red wire) must be connected to a constant (un-switched) +12 VDC or +24 VDC supply; preferably, connected directly to the
vehicle battery terminal or as close to it as possible. This connection point
should be fuse protected to not more than 5 Amps.
The ignition input (white wire) must be connected to the vehicle ignition or another appropriate key operated line, such as ACCESSORY,
ensuring that power to the ignition wire is available only when the vehicle ignition is
on.
The ground line (black wire) must be connected to chassis ground.
Failure to connect these lines in the manner described may result in discharge of the vehicle battery.
For best results, it is strongly recommended that the LMU connection be on its own circuit. Connect the power input directly to the vehicle
battery if possible and protect the circuit with an inline fuse. If you must connect
through the fuse box, use standard commercial wiring practices to create a permanent installation rather than using press-in fuse clips or other
temporary measures.
DO NOT connect the power cable to the LMU at this time.
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5.3.3 Place the GPS antenna.
The GPS antenna must have a clear view of the sky. Mount the GPS antenna on the vehicle’s highest point (for example, the roof of a car). Make
sure that there are no obstructions close to the antenna that might block the
view 360° to the horizon. Air horns lights, vents, etc.. should not block the antenna beyond 5° above the horizon.
Kinks or knots in the antenna cable can prevent the GPS receiver from operating properly. When laying out the antenna cable, take care that the
cable is not subjected to crushing or strain.
The ideal location is typically near the center of the vehicle’s roof. However, it is also desirable to locate the cellular antenna as far from the GPS
antenna as possible.
GPS Antenna Location
5.3.4 Mount the Comm. Antenna.
When using separate Comm and GPS antennas, it is best to locate the Comm. Antenna at least 3 feet from the GPS antenna. Ensure that the cable
is not crushed during installation or normal vehicle operation.
Again, the Comm. Antenna must be located at least 20cm away from vehicle passengers, other personnel, or bystanders in order to comply with
FCC radio frequency exposure limits.
Window Mount Antenna Location
5.3.5 Typical Connection Sequence
Attach the cable from the GPS antenna.
Connect the cable from the Comm.. antenna
Connect any peripherals to the LMU
Plug in the power harness.
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The physical installation of the LMU hardware is now complete.
Completed Install – separate antennas
Completed Install - Internal antennas
5.4 Installation Verification
In many cases it is desirable to verify that an installed LMU-5541™is working properly. That is, installers should verify that the GPS and
communications functions of the LMU-5541™are working properly before
departing the installation site. In more robust cases, some key configuration settings such as the Inbound Address and URL should also be
verified.
Note that these processes are all based on issuing AT Commands to the LMU-5541™. It is expected that installers will have access to a serial
port expansion cable and a laptop or PDA capable of a terminal connection.
Alternatively, an SMS message can be sent to an LMU-5541™to obtain its current status.
5.4.1 Comm Verification
Installers should first verify that the LMU-5541™has been acquired and has registered to the wireless network. This may be verified in one of
two ways. First, installers may look at the Comm LED (i.e., the one closest to
the SMC antenna connector). If this LED is solid, then the LMU has registered to the network and established a data session.
If the LED is not visible, then Comm may be verified using an AT Command:
ATIC
Depending on the wireless network being used something similar to what is shown below will be displayed. It is important to verify that 'Yes'
values are displayed at the top for Data and Network registration and the correct
APN is displayed.
Radio Access : GSM
Network Reg. : Yes, Home
Data Reg. : Yes, Home
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Connection : Yes
RSSI : -97 dBm

BER : 99
Channel : 737
Cell ID : 3441
Base Station ID : 40
Local Area Code : 31003
Network Code : 410
Country Code : 310
IMEI (Modem S/N): 351802055396182
IMSI (SIM ID) : 310410202524377
ICC-ID (SIM S/N): 89014102212025243778
Phone Number :
GPRS APN : ISP.CINGULAR
Maint. Server : maint.vehicle-location.com(216.177.93.246):20500
Inbound Server : (0.0.0.0):20500
Dual Comm : routing id=0, log cid=0, modem type=21, inbnd index=0
OK
If any of the responses return Not-Acquired or Not-Registered (and the APN is correct), the wireless network operator should be contacted for
further troubleshooting.
Please note that it may take several seconds (or longer) for the LMU-5541™to communicate with the modem and acquire the wireless network.
5.4.2 GPS Verification
The next step is to verify that the GPS receiver is seeing enough satellites to obtain a valid GPS position. Again, installers have two choices on
how to perform this verification. First, like the Comm Verification, there is a
GPS status LED (i.e., the one closest to the SMA connector). If this LED is solid, then the LMU has found GPS service.
If the LED is not visible then GPS service may be verified using an AT Command:
AT$APP GPS?
The response should be similar to:
Lat=3304713, Lon=-11727730, Alt=0
Hdg=113 Spd=0 3D-RTIME HDOP=130 nSats=7
Installers are looking for the 3D-RTIME setting along with a valid Lat, Long pair (i.e. something other than 0). If the GPS receiver does not have
a valid lock within 2-3 minutes, installers should check antenna placement
(see the Installation Notes section for placement suggestions), the antenna connector and that the antenna has a clear view of the sky. For further
troubleshooting, installers should contact CalAmp Support
([e-mail])
5.4.3 Inbound Verification
The last item to verify is that the LMU-5541™is sending data to the correct server. In general, this is a two-step process that will need the aid of
an observer on the back end. That is, a technician will have to be logged in so
they can monitor data coming into the backend mapping/vehicle management application.
First, verify that the LMU-5541™is using the correct Inbound IP address by using:
AT$APP INBOUND?
The response should be similar to:
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INBOUND LMD
INBOUND 0 ADDR ddd.ddd.ddd.ddd:ppppp *
INBOUND 0 URL myURL.myCompany.com
INBOUND 1 ADDR 0.0.0.0:20500
INBOUND 1 URL
INBOUND 2 ADDR 0.0.0.0:20500
INBOUND 3 ADDR 0.0.0.0:20500
The installer will need to verify with a backend technician that the, URL (myURL.myCompany.com ), IP address (ddd.ddd.ddd.ddd) and port
(<ppppp>) are correct.
The second step is to verify that the LMU-5541™is sending data. The best way to do this is to force the LMU-5541™to send in an
unacknowledged Event Report (i.e., its current GPS location) with the following
command:
AT$APP PEG SUNRPT 255
The LMU-5541™will respond with: OK
The backend monitor must then be contacted to confirm that they received an Event Report with Event Code 255.
Assuming that all three sections have passed, the installation can be considered to be complete.
5.4.4 Verification via SMS
The current Comm, GPS and Inbound status of a GSM LMU can be obtained via SMS provided you have access to an SMS capable phone or
PDA.
Using your handset, send the following SMS Message to the LMU:
!R0
Within a few minutes, the LMU should return a response in the following format:
APP: <App ID> <Firmware Version>
COM:<RSSI> [./d/D][./a/A][./L][IP address] [<APN>]
GPS:[Antenna <Short/Open/Off>] | [No Time Sync] | [<FixStatus> <Sat Count>]
INP:<inputs states> <vehicle voltage>
MID:<mobile ID> <mobile ID type>
INB:<inbound IP address>:<inbound port> <Inbound Protocol (LMD/LMX)>
APP: <App ID>:
The Application ID value of the LMU indicating the host platform and the wireless networking technology of the LMU
<Firmware Version>:
The current firmware version in use by the LMU
COM: <RSSI>:
This is the signal strength the wireless modem sees from the network. In general the LMU is at least scanning for the network if the RSSI is not -
113.
[./d/D]:

LMU-5541 Hardware & Installation Guide
If the character ‘D’ is present, it indicates the LMU had a data session established when it responded to the status request. For the 8-Bit product
line an upper case ‘D’ indicates both the Inbound and
Maintenance sockets are ready. The lower case ‘d’ indicates that only the Maintenance socket is ready. A ‘.’ indicates no sockets are ready.
o[./a/A]:
This field indicates if the LMU has received an Acknowledgement from the Inbound server. This field will be empty if the LMU has never
received an ACK. The lower case ‘a’ will be present if it has
received an ACK since the last cold boot (i.e. power cycle) but not the last warm boot (App Restart or Sleep). The upper case ‘A’ will be present
if the LMU has received an ACK since the last warm boot.
A ‘.’ Indicates no acknowledgement has been received.
o[./L]:
This field indicates if the LMU’s log is currently active. An ‘L’ indicates that the log is currently in use (i.e. one or more records have been
stored) where a ‘.’ indicates the log is inactive.
o[IP Address]:
This is an optional field if and is only present if the LMU has established a valid data session. This field will contain the current IP address of the
LMU as assigned by the wireless network. Note that if
you see a value of 192.168.0.0, this is an indication that the LMU has not been able to establish a data session.
o[<APN>]
The current Access Point Name in use by a GSM LMU.
GPS:
o[Antenna <Short/Open/Off>]:
This field, if present, indicates a problem with the LMU’s GPS antenna. A value of Short indicates that the antenna cable has likely been crushed.
A value of Open indicates that the antenna cable is either
cut or disconnected. A value of Off indicates that the LMU’ GPS receiver is off.
o[No Time Sync]:
If this field is present, it indicates that the LMU’s GPS receiver has not been able to find even a single GPS satellite. This would likely been seen
in conjunction with the above antenna error, or if the LMU
GPS antenna is otherwise blocked.
o[<FixStatus> <Sat Count>]:
If these fields are present it indicates that the LMU has, or had a valid GPS solution. The <Sat Count> field indicates how many GPS satellites
are currently in use by the LMU. The <FixStatus> field
indicates the type of fix. The Fix Status types are detailed in the LM Direct Reference Guide.
INP:
o<input states>:
This field details the current state of each of the LMU’s discreet inputs. This field is always 8 characters long. The left most character represents
the state of input 7 where the right most represents the state
of input 0 (i.e. the ignition). A value of 1 indicates the input is currently in the high state. A value of 0 indicates it is currently in the low state.
o<vehicle voltage>:
This field will contain the current reading of the LMU’s internal A/D. This will be the supply voltage provided to the LMU in mV.
MID:
o<mobile ID>:
This will be the current mobile ID in use by the LMU.
o<mobile ID type>:
This will be the type of Mobile ID in use by the LMU. The available types are, Off, ESN, IMEI, IMSI, USER, MIN and IP ADDRESS.
INB:
o<inbound IP address>:
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This is the current IP address in use by the LMU. This value should match the IP address of your LM Direct™server.
o<inbound port>:
This is the current UDP port the LMU will use to deliver its LM Direct™data. This value should match UDP port you are using on your LM
Direct™server. It is typically 20500.
o<Inbound Protocol (LMD/LMX)>:
This is the current UDP/IP messaging protocol in use by the LMU. In general it should be LMD.
Example GSM Response
APP:081 8.3d
COM:0
GPS:No Time Sync
INP:11100111 13.7V
MID:4141000100 ESN
INB:207.7.101.227:20500 LMD
6 LMU-5541 Router Configuration & Management
6.1 Configure Maintenance Computer
Change the IP settings on the maintenance computer to match the subnet of the LMU-5541™
Go to Control Panel ? Network and Internet ? Network and Sharing Center ? Change adaptor settings ? Local Area Connection ? Properties ?
Internet Protocol Version 4 (TCP/IPv4) ? Properties ?
Select “Use the following IP address:”
Enter the following IP settings:
Ethernet IP address = 192.168.1.189
Subnet mask = 255.255.255.0

Default gateway = 192.168.1.55
Select OK to apply changes.
6.2 Connect to the router
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Use a web browser to log into the LuCI interface. Type 192.168.1.55 into the browser:
6.3 LuCI
Login screen:
Enter Username: root
Enter Password: wireless3g
Once you log in you will see the Overview screen:
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6.4 How to turn on WIFI
To start the WIFI interface you can simply run the following PEG command:
Note: By default the WIFI interface is configured in Access Point mode with no security.
It is disabled after programming the image.
To start the WIFI interface you can simply run the following PEG command:
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>>at$app peg action 190 1
To shut down WIFI run the following PEG command:
>>at$app peg action 190 0
To see WIFI status:
>>atiw
From Linux console you can also turn WIFI on/off using the following commands:
To turn on WIFI:
>> uci set wireless.radio0.disabled=0
>> uci commit wireless
>> /etc/init.d/network reload
To turn off WIFI:
>> uci set wireless.radio0.disabled=1
>> uci commit wireless
>> /etc/init.d/network reload
You can also turn WIFI on/off using the LuCI:
From the Overview page, click the Network tab and then the WIFI sub-tab.
6.5 How to test WIFI connectivity
As we mentioned, WIFI on the LMU5530 default is in access point mode so all clients can join it and get an IP address.
If you run WIFI on the LMU5530 from your Windows or Linux machine with WIFI enabled, you should see a new WIFI device with "calamp"
as the SSID.
Try to join this network. It has no security and it should join “calamp” with no problem.
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After joining you should check your WIFI interface
LMU-5541 Hardware & Installation Guide in client
side to see if it got a new IP address.
On Windows machines, go to console by running "cmd" and from there type
>>ipconfig
You should see new IP address with 192.168.100.xx subnet is assigned to wireless interface.
You can try to ping the LMU from the client side:
>>ping 192.168.100.55
Ping should work.
6.6 LED Behavior
Mode Connected? Client Connected? LED State
OFF NO OFF
Client NO Green Flash (Slow)
Client Authenticating Green Flash (Fast)
Client YES Green Solid
AP NO Red Solid
AP YES Red Solid
6.7 Toggle between Access Point and Client Mode
You can switch between Access Point and Client Mode by changing Parameter 3901 (WIFI_MODE) and restarting the Wi-Fi interface.
Putting unit into Access Mode:
>>at$app param 3901,0,”ap”
>>at$app peg action 190 1
Putting unit into Client Mode:
>>at$app param 3901,0,”sta”
>>at$app peg action 190 1
6.8 Supported and Tested Wi-Fi Related Parameters
WIFI_AUTH = 3900 //16-char - AUTh mode

WIFI_MODE= 3901 //16-char - Mode of operation "ap" or "sta"
WIFI_SSIDL= 3902 //64-char - SSID of the network
WIFI_ENCRYPTIONL= 3904 //16-char - encryption method
WIFI_KEYL= 3905 //64-char - the pre-shared key (psk)
WIFI_EAP_TYPE= 3909 //16-char - EAP type for WPA/WPA2
WIFID_CHANNEL= 3950 //16-char - the channel number to operate on
WIFID_DISABLED= 3951 //unsigned 8 bits- to disable wireless network 1:enable, 0:disable
WIFID_TXPOWER= 3954 //32 bit - transmit power
7 Firmware & Co-Processor Update
Note: This section will program the u-boot, root file system, and kernel, on the IMX processor. The second section will program the Co-
Processor. If you would like to simply upgrade the Firmware of adevice that already has the
u-boot, root file system, etc., please go to the follow section of the Wiki: Firmware Update
The LMU-5541™features two processors.
IMX, the Linux processor
STM8, the co-processor
The Firmware for the two processors in the LMU can be manually loaded.
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Updating the firmware is performed in two sections, one section for each processor. The first section will program the u-boot, root file system,
and kernel, on the IMX processor. The second section will program the Co-
Processor.
Note: Note: During the u-boot update everything will be erased including the ESN, so please make a note of the ESN.
View ESN type: AT#ESN? <Enter>
7.1 Requirements
Maintenance computer with serial connector or serial adaptor
Download and install two programs: TFTP32 or TFTP64, and WinSCP. If your computer is a 64 bit version, then download tftpd64
tftpd download (http://tftpd32.jounin.net)
winscp download (http://winscp.net)
All Firmware related files
Co-processor image.bin file
Terminal emulation program such as HyperTerminal, Putty, TeraTerminal, set to a Baud Rate of 115200
Power supply +12VDC
Ethernet cable
USB to mini-USB cable
CalAmp 4-pin Power cable p/n 5C888
CalAmp programming pigtail, serial adaptor cable p/n 5C940
CalAmp serial cable p/n 134364-SER
4-pin header at location J25.
7.2 Preparation
In the C: drive of the maintenance computer create a folder called tftpboot
C:\tftpboot
Place all of the firmware and u-boot-lmu related files that were provided into the tftpboot folder
Connect the 5-pin connector of the CalAmp serial cable 134364-SER into the AUX1 connector of the LMU-5541™. Connect the DB-9 connector
of 134364-SER to the serial connector or serial adaptor connected to the
maintenance computer.
Connect the mini USB to the LMU-5541™and connect the other end to a USB slot on your computer.
Connect 4-pin power harness SC5888 to the power connector on the LMU-5541™. Connect the wires of the power harness to +12VDC power
supply; RED +12VDC, WHT +12VDC (ignition), BLK Ground
Take an Ethernet cable and connect one end to the LMU-5541™RJ-45 connector and the other end to the maintenance computer.
Launch the terminal emulation program.
Power up the LMU-5541™.
Type: AT#ESN? <Enter>
Write down the ESN of the unit.
Remove power from the LMU-5541™.
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7.3 Maintenance computer network setup
Change the IP settings on the maintenance computer to match the subnet of the LMU-5541™
Go to Control Panel → Network and Internet → Network and Sharing Center → Change adaptor settings → Local Area Connection →
Properties → Internet Protocol Version 4 (TCP/IPv4) → Properties →
Select “Use the following IP address:”
Enter the following IP settings:
Ethernet IP address = 192.168.1.189
Subnet mask = 255.255.255.0
Default gateway = 192.168.1.55
Select OK
Ensure WiFi is disabled on the maintenance computer.

7.4 Programming the IMX processor
Apply power to the LMU-5541™, then view the terminal emulation screen.
Enter <B> to break the u-boot.
Net: FEC [PRIME]
Normal Boot
Hit 'B' to stop autoboot: 0
LMU5530-Boot >
The command prompt “LMU-5541-Boot >” will appear.
Type: nand erase.chip <enter>
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LMU5530-Boot > nand erase.chip
When completed, “LMU5530-Boot >” will appear.
NAND erase.chip: device 0 whole chip
Erasing at 0x1ffe0000 -- 100% complete.
OK
LMU5530-Boot >
7.5 USB driver installation
If the USB driver has been previously installed, skip the USB driver installation.
Power cycle the unit.
If the USB driver has never been installed, a pop-up window will appear → Driver Software Installation. Proceed with the driver install.
Upon completion, it will indicate USB Input Device Installed.
7.6 Firmware update
Remove power from the LMU-5541™
Remove the top cover of the LMU-5541™
Connect the 4-pin connector of 5C940 into the 4-pin header located on the board at J25. The red stripe of 5C940 is placed facing towards the
closest edge of the board.
Connect the 5-pin connector of the serial adaptor cable 5C940 to the 5-pin connector of the serial cable 134364-SER.
Connect the DB-9 connector of 134364-SER to the serial port or serial adaptor connected to the maintenance computer.
Power up the LMU-5541™
Launch the TFTP32 or TFTP64 server.
For the Current Directory window, Browse for Directory C:\tftpboot
For the Server interface window, select 192.168.1.189
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On the maintenance computer, open the command prompt by searching for CMD.EXE followed by <enter>
Type: cd c:\tftpboot
At the prompt c:\tftpboot, type: dir <enter> (to see and verify the files)
At the prompt c:\tftpboot, type: sb_loader.exe -f u-boot-lmu5530-btstrp.imx <enter>
In the command prompt screen, wait for an indication of a successful download.
Looking at the Terminal Emulation screen, you will see up to 9 files being serially loaded. Wait until all the files have been loaded as it takes
several minutes. After all files are loaded “U-boot Upgrade complete” will appear
on the terminal emulation screen.
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7.7 Programming the co-processor
WinSCP will be used to transfer the firmware for the co-processor into the Linux system after it is running.
Launch WinSCP
Select File Protocol: SCP
Enter Host Name: 192.168.1.55
Enter Port Number: 2001
Enter Username: root
Enter Password: wireless3g
Click on Login
A new WinSCP screen will appear. On the left side, browse for C:\tftpboot
The right half should be pointed to the /root directory in the LMU-5541.
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Transfer the file called LMU7030-CoProc_vX.X.bin via SCP over to root. Drag the file LMU7030-vX.X.bin across the screen to the root side.
On the Terminal Emulation screen, press <Enter> to bring up the LMU5530 login:
Username: root
Password: wireless3g
Type: ls <Enter> (to view the name of the bin file)
Type: lmu5530_program_stm8.sh /root/<file_name.bin> <Enter>
Note: the bin file name is case sensitive and must be entered exactly as shown.
The co-processor, STM8, is being programmed.
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Programming is complete when “success” is returned and the “root@LMU5530:~#” prompt is displayed.
To view co-processor info type: stm_cli --info
7.8 Final Steps

Because of the command nand erase.chip, the ESN was wiped out and assigned the number zero. Change the ESN back to its assigned number
with the following AT command.
AT#ESN <ESN_Number> OVERRIDE
Example: AT#ESN 5052000024 OVERRIDE
After the Firmware update it is necessary to set the factory defaults on all the parameters.
Type: AT#FACTORY
8 Firmware Update
This section outlines how to upgrade the LMU-5541's firmware.
8.1 Requirements
Maintenance computer with serial connector or serial adaptor
Download and install two programs: TFTP32 or TFTP64, and WinSCP. If your computer is a 64 bit version, then download tftpd64
tftpd download (http://tftpd32.jounin.net)
winscp download (http://winscp.net)
All Firmware related files
Co-processor image.bin file (when applicable)
Terminal emulation program such as HyperTerminal, Putty, TeraTerminal, set to a Baud Rate of 115200
Power supply +12VDC
Ethernet cable
USB to mini-USB cable
CalAmp 4-pin Power cable p/n 5C888
CalAmp programming pigtail, serial adaptor cable p/n 5C940
CalAmp serial cable p/n 134364-SER
4-pin header at location J25. (optional)
8.2 Preparation
In the C: drive of the maintenance computer create a folder called tftpboot
C:\tftpboot
Place all of the firmware and u-boot-lmu related files that were provided into the tftpboot folder
Connect the 5-pin connector of the CalAmp serial cable 134364-SER into the AUX1 connector of the LMU-5541™. Connect the DB-9 connector
of 134364-SER to the serial connector or serial adaptor connected to the
maintenance computer.
Connect the mini USB to the LMU-5541™and connect the other end to a USB slot on your computer.
Connect 4-pin power harness SC5888 to the power connector on the LMU-5541™. Connect the wires of the power harness to +12VDC power
supply; RED +12VDC, WHT +12VDC (ignition), BLK Ground
Take an Ethernet cable and connect one end to the LMU-5541™RJ-45 connector and the other end to the maintenance computer.
Launch the terminal emulation program.
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Power up the LMU-5541™.
8.3 Maintenance computer network setup
Change the IP settings on the maintenance computer to match the subnet of the LMU-5541™
Go to Control Panel ? Network and Internet ? Network and Sharing Center ? Change adaptor settings ? Local Area Connection ? Properties ?
Internet Protocol Version 4 (TCP/IPv4) ? Properties ?
Select “Use the following IP address:”
Enter the following IP settings:
Ethernet IP address = 192.168.1.189
Subnet mask = 255.255.255.0
Default gateway = 192.168.1.55
Select OK
Ensure WiFi is disabled on the maintenance computer.
8.4 Firmware update
Maintenance computer with serial connector or serial adaptor
Download and install two programs: TFTP32 or TFTP64, and WinSCP. If your computer is a 64 bit version, then download tftpd64
tftpd download (http://tftpd32.jounin.net)
winscp download (http://winscp.net)
All Firmware related files
Co-processor image.bin file (when applicable)
Terminal emulation program such as HyperTerminal, Putty, TeraTerminal, set to a Baud Rate of 115200
Power supply +12VDC
Ethernet cable
CalAmp 4-pin Power cable p/n 5C888
CalAmp programming pigtail, serial adaptor cable p/n 5C940
CalAmp serial cable p/n 134364-SER
4-pin header at location J25. (optional)
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For the Current Directory window, Browse for Directory C:\tftpboot
For the Server interface window, select 192.168.1.189

Apply power to the LMU-5541™, then view the terminal emulation screen.
Enter <B> to break the u-boot.
Net: FEC [PRIME]
Normal Boot
Hit 'B' to stop autoboot: 0
LMU5530-Boot >
The command prompt “LMU-5541-Boot >” will appear.
Type: call <enter>
LMU5530-Boot > call
When completed, “LMU5530-Boot >” will appear.
Type: boot <enter>
LMU5530-Boot > boot
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8.5 Programming the Co-Processor
Occasionally, a Co-Processor update will be required in conjunction with the LMU Firmware update. Use this section for such cases.
WinSCP will be used to transfer the firmware for the co-processor into the Linux system after it is running.
Launch WinSCP
Select File Protocol: SCP
Enter Host Name: 192.168.1.55
Enter Port Number: 2001
Enter Username: root
Enter Password: wireless3g
Click on Login
A new WinSCP screen will appear. On the left side, browse for C:\tftpboot
The right half should be pointed to the /root directory in the LMU-5541.
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Transfer the file called LMU7030-CoProc_vX.X.bin via SCP over to root. Drag the file LMU7030-vX.X.bin across the screen to the root side.
On the Terminal Emulation screen, press <Enter> to bring up the LMU5530 login:
Username: root
Password: wireless3g
Type: ls <Enter> (to view the name of the bin file)
Type: lmu5530_program_stm8.sh /root/<file_name.bin> <Enter>
Note: the bin file name is case sensitive and must be entered exactly as shown.
The co-processor, STM8, is being programmed.
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Programming is complete when “success” is returned and the “root@LMU5530:~#” prompt is displayed.
To view co-processor info type: stm_cli --info
9 CalAmp Locations
CalAmp's Corporate headquarters is located in Irvine, CA, with many divisional and satellite locations across the United States as well as
internationally.
Corporate Headquarters
15635 Alton Parkway, Suite 250
Irvine, CA 92618
Additional Locations
2400 N Glenville Dr,
Richardson, TX 75082 6483 City West Parkway Eden Prairie, MN 55344 2200 Faraday Ave, Suite 220 Carlsbad, CA 92008
10 License Agreement
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Use Licenses: For each Server or Site License purchased, CalAmp grants the Customer the right to distribute Applications on a single Server or
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Make any attempt to unlock or bypass any initialization system or encryption technique utilized by the Application; or (6) Alter, remove or
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and conditions of this License Agreement shall supersede those set forth in any purchase order where the purchase order conflicts or is
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U.S. Government Protected Rights: The Software Documentation and Related Materials are provided with RESTRICTED RIGHTS. Use,
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of the Commercial Computer Software-Restricted Rights at 48 CFR 52.227-
19, as applicable. Manufacturer is CalAmp Wireless Networks., 15635 Alton Pkwy #250, Irvine, CA 92618. Rights are reserved under copyright
laws of the United States with respect to unpublished portions of the Software.
12 Regulatory Information
Human Exposure Compliance Statement
Pursuant to 47 CFR § 24.52 of the FCC Rules and Regulations, personal communications services (PCS) equipment is subject to the radio
frequency radiation exposure requirements specified in § 1.1307(b), § 2.1091 and §
2.1093, as appropriate.
CalAmp Wireless Networks. certifies that it has determined that the LMU-5541™complies with the RF hazard requirements applicable to
broadband PCS equipment operating under the authority of 47 CFR Part 24, Subpart E of the FCC Rules and Regulations. This determination is
dependent upon installation, operation and use of the equipment in accordance with all instructions provided.
The LMU-5541™is designed for and intended to be used in fixed and mobile applications. “Fixed” means that the device is physically secured at
one location and is not able to be easily moved to another location.
“Mobile” means that the device is designed to be used in other than fixed locations and generally in such a way that a separation distance of at
least 20 cm is normally maintained between the transmitter’s antenna and the body of the user or nearby persons. The LMU-5541™is not
designed for or intended to be used in mobile applications (within 20 cm of the body of the user) and such uses are strictly prohibited.
To ensure that the LMU-5541™complies with current FCC regulations limiting both maximum RF output power and human exposure to radio
frequency radiation, a separation distance of at least 20 cm must be maintained between the unit’s antenna and the body of the user and any
nearby persons at all times and in all applications and uses. Additionally, in mobile applications, maximum antenna gain must not exceed:
8dBi in WCDMA Band 2/LTE Band 2/7/25/38/41;
5dBi in WCDMA /LTE Band 4, and
8.6dBi in GSM850;
10.19dBi in PCS1900;
9.42dBi in WCDMA Band 5;
9.41dBi in LTE Band 5;
8.7dBi in LTE Band
12; 9.16dBi in LTE Band 13;
9.36dBi in LTE Band 26(814-824);
9.41dBi in LTE Band 26(824-849
FCC Rules and Industry Canada (IC) regulatory information
Compliance Statement (Part 15.19)
The equipment device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) This device must accept any interference
received including interference that may cause undesired operation.
Warning (Part 15.21)
Changes or modifications not expressly approved by CalAmp Wireless Networks could void the user’s authority to operate the equipment.
Manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment.
Compliance Statement (Part 15.105(b))
Note: 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