M Labs Technologies LP01V Leopard CAT M Wireless Communication Device User Manual FCC LP V001r1 2x
M-Labs Technologies, LLC Leopard CAT M Wireless Communication Device FCC LP V001r1 2x
user manual
1
User
Manual
LP-V001
Leopard CAT M
Wireless Communication
Device
December
2018
R1.2
The information presented in this document is strictly confidential and contains trade secrets
and other confidential information that are the exclusive property of M-Labs Technologies, LLC.
2
Author Revision Changes Date
1.0 Initial version 2018 Dec 20
1.1 Update to RF Performance Table 2018 Dec 27
1.2 Correct Doc Title and add usage 2019 Jan 29
3
Contents
1 Introduction ...................................................................................................................................... 4
2 Hardware Design ............................................................................................................................. 5
2.1 Basic Hardware ...................................................................................................................... 5
GPS .................................................................................................................................................. 5
GPIO ................................................................................................................................................ 6
LED’s................................................................................................................................................ 6
UART ............................................................................................................................................... 6
Relay Driver ..................................................................................................................................... 6
Power and Battery .......................................................................................................................... 6
Timers ............................................................................................................................................. 7
Watchdog ........................................................................................................................................ 7
Accelerometer ................................................................................................................................ 7
2.2 Basic RF Performance ................................................................................................................. 7
2.3 Certification and Safety .......................................................................................................... 8
3 Software Features ........................................................................................................................... 9
3.1 Basic Software ........................................................................................................................ 9
3.2 Remote Update .......................................................................................................................... 9
3.3 Power Modes ............................................................................................................................. 9
3.4 AT Commands ........................................................................................................................... 10
3.5 Ack’ed Mode ............................................................................................................................. 10
3.6 Event Report Format ................................................................................................................. 10
3.7 Reset ......................................................................................................................................... 10
3.7.1 Context Preservation ......................................................................................................... 11
3.8 Startup Banner ......................................................................................................................... 11
4 Test Method .................................................................................................................................. 12
4.1 Hardware .............................................................................................................................. 12
4.2 Software Test ....................................................................................................................... 12
Mechanical Structure (mm) .................................................................................................................. 13
FCC Statement ...................................................................................................................................... 14
RF Exposure Warning Statements: ........................................................................................................ 14
IC STATEMENT ....................................................................................................................................... 14
4
1 Introduction
The LP-V001 is a self-contained automotive wireless communication device that combines LTE CAT M
cellular connectivity with GPS location. The device is typically installed in a vehicle, either in-dash or
under the hood with minimum distance from the human body not less than 20cm. It is primarily
a location reporting device that responds to requests (user, server) and events (timers, geo-
fences). Data reports consist of a single record that contains all location data and system status.
The device comes pre-configured from the factory. It is ready to use. The LP-V001 appears to a
user or a server application as an endpoint device. It can be queried, updated and configured
either through a serial connection, an over the air IP connection, or through SMS messaging. The
LP-V001 presents itself over these connections as an enhanced cellular modem with attached
functional elements. These elements include:
GPS location engine
Accelerometer
Input/outputs dedicated for ignition, relay, buzzer, and general purpose
Serial UART port
Timers
Watchdog lockup protection
Power management
Event reporting
Voltage monitoring
Access to these elements and general purpose interface is done through an extended AT
command set. Configuration parameters are stored to flash memory and are automatically used
on the next power up event. For more details, please reference the AT Command document.
Figure 1 This product is based on the Asiatelco LM91-MV (4G LTE CAT M
) b
aseband module. Antennas for cellular and GPS
are internal to the device.
Leopard/LP-V001
5
2 Hardware Design
2.1 Basic Hardware
Items
Requi
r
em
e
nt
Cellular Modem
Based on Asiatelco LM91-MV baseband module.
Cellular Network Interface
Support for LTE B13
Frequency
B13(MHZ): TX(777-787) RX(746-766)
Cellular Antenna
Internal single antenna
GPS Antenna
Dedicate high performance ceramic antenna
UIM requirement
Support
：
3FF SIM Interrupt Mode
No Support
：
Hot Plug/Unplug
Battery Monitor
Internal analog input
Build in battery manager Yes
Interface
Debug UART
12V DC Input
（
1A current
）
, Ground
Relay Drive (Open Drain , 500mA current)
Dedicated Output for buzzer control
Ignition Input
GPIO
Dedicate Timers
Yes
Watchdog
External HW via MCU
Motion Detect
Supported
（
GPS/G-Sensor
）
LED
2 LED Supported
1- RED; 1- Green
Battery
Optional built in battery
（
80mAH Lion
）
Working Time
4 hours
Power switch
No
Power Cable color
8 colors
Power Cable connector type
8-pin connector
Power Consumption
< 5Watts
The LP-V001 provides support for specialized hardware features through extended AT
commands. The features supported include the following:
GPS
GPS location functionality is provided by the device GPS receiver. NMEA GPS records can be
extracted in real time from the unit via the UART connection using special debug commands that
are outside the scope of this document.
6
GPIO
One dedicated input, two dedicated outputs, and one general purpose IO are presented to the
external
environment
on the main connector. They are capable of providing system interrupts to
generate a report or drive logic levels to external devices. These lines are 2.8V logic level and are
16V tolerant. These pins default to input and are pulled down representing 0 when disconnected.
They should be asserted to a known value if used.
LED’s
Two LED status indicators are provided to verify correct installation and operation. The status
LEDs are color coded and directly convey the status of the cellular and GPS subsystems as
described in the table below. Their valid operation also indicates operational status and power.
LED Function Status
Red GPS On: GPS satellites acquired and Locked
Flash Slow: GPS satellite search is in progress
30 Sec Blink: Device in low power mode
Off: No power or GPS subsystem fault
Green Cellular
Connection
On: Indicates LTE connection is made
Flash Slow: LTE subsystem initialization in progress
Flash Fast: LTE initialization but no data connection available
Off: No power, Low power mode or LTE subsystem fault
The LP-V001 provides user control allowing the LEDs to be extinguished once installation is verified.
This feature reduces power and further conceals the LP-V001 Tracker from untrained parties
wishing to defeat its operation.
UART
There is one UART provided. A debug UART port is provided for AT commands, data interaction
and optionally for application specific control.
Relay Driver
A 500mA sink capable output pin is provided. This pin is meant to drive a relay coil indented to
interrupt the starter solenoid relay for the ignition circuit to a car.
Power and Battery
The battery monitor is internal analog input scaled such that the DC value of the power input pin
to the LP-V001 system is measured. This value is scaled to span the most significant 8 bits of the
A/D and consequently covers a scale from 0 to 28 Volts.
7
Timers
Timers resident on the baseband chip generate periodic interrupts for power down wakeup,
watchdog support, periodic report generation and other timer related functions.
Watchdog
The Asiatelco LM91-MV provides internal software Watchdog. Also the LP-V001 includes an MCU
that acts as a failsafe external watchdog. The MCU power cycles the system, if no activity is
detected for 1 hour.
Accelerometer
The accelerometer can be used for motion detection and driver behavior monitoring.
2.2 Basic RF Performance
Items Requirements Remark
TRP free space B13: >= 18 dBm TRP free space
TIS free space Main: <= -90dBm
Div: <= -88dBm
TIS free space
Antenna loss <= -4dB TRP-TX Power Conducted
Antenna Loss
<= -4dB RX receive sensitivity conducted
–
TIS
Board RF Specification
LTE_B13_RX
Frequency range 746MHz ~ 756MHz
Sensitivity -96dBm (10MHZ_50RB_Downlink)
Dynamic range -23 ~ -96dBm
LTE_B13 _TX
Frequency range 777MHz ~ 787MHz
Maximum Frequency error ±10Hz
Maximum output power 23±1.5dBm
Minimum control output power
<-43dBm
ACLR UTRA2: 45.48 UTRA1: 41.41 E-UTRA1:39.43
UTRA2: 44.87 UTRA1: 41.51 E-UTRA2:38.25
OBW 1.06MHZ (10MHZ Nominal)
IQ OFFSET < -54.7dbc
EVM <4.5%
GPS
Frequency Support
L1-band (1.57542GHz)
Channels: 210 PRN
，
66 Search
，
22 Simultaneous
tracking
8
Sensitivity
Sensitivity (UHIS):
Tracking: -156dBm
Reacquisition: -153dBm
Acquisition: -144dBm
Tracking Time Requirement
Acquisition time:
Hot: <2s
Warm: <15s
Cold: <60s
Reacquisition: 2s - 10s Depends on signal level
2.3 Certification and Safety
Items Requirement
Drop Design 1.2 meter 6 direction standard drop test
Temperature Range -20 to 40°C Operation
-50 to +100° C Storage
Humidity: 20% to 90% Operation
10% to 95% Storage
Altitude: -500 to +18,000m
Vehicle ISO Test ISO7637-2-2004; ISO7637-3-2007; ISO10605-2008;
ISO16750-2-2010
FCC Certification FCC 47 CFR Part 15 and Part 18
Other Certifications Industry Canada (optional)
ESD Requirement 10KV non-Conductive
Operator Certifications Verizon
9
3 Software Features
3.1 Basic Software
Items Requirement
Network Interface LTE B13
IP Stack IPV4/IPV6
Upgrade Method Remote update/ PC tool
Re
m
o
t
e
Up
d
ate
S
u
p
p
orted
–
including OMA DM
Power Modes Supported
AT Commands Supported
Report Supported: 1000 records
Drivers GPIO，LED，GPS，UART, Accelerometer
GPIOs Interrupt for Ignition Status, Buzzer, Relay
LEDs GPS Status, Network Status
Watch Dog Supported
Reset Soft reset, hard reset, GPS reset, RF reset
Startup Banner Supported
3.2 Remote Update
The LP-V001 supports OTA field upgrades of the resident application. An over the air
TFTP
(Trivial
File Transfer Protocol) connection is made over a
n IP
connection. A replacement file is then
transferred from a server to the LP-V001 and that file replaces the previous application image.
3.3 Power Modes
The LP-V001 device supports several power modes that are set by AT commands. In full power
mode the GPS is active and the cellular subsystem will maintain a persistent cellular
connection whenever service is available. IP connection is maintained according to the
configuration of the device.
The device can be put in low power mode whenever it runs on a backup battery or if the external
battery is low or if it is not moving. In low power mode the GPS is not running and the LED’s are
off. The device would return to full power whenever an event occurs that triggers a report.
Those events include:
Periodic report
GPIO change
IP change
Battery threshold
Heartbeat
Watchdog
Power-up
10
Ignition
Trip start and stop
Any hardware or software reset will return the device to full power mode.
3.4 AT Commands
Extended AT commands are specific to the LP-V001 device. They are closely based on commands
that are as similar as possible industry common devices and are essentially subsets of standard
LP-V001 commands. Native AT commands supported by the Asiatelco LM91-MV modules are also
available via the serial and USB interfaces.
3.5 Ack’ed Mode
UDP is not a 100% reliable connection and occasional reports or command/responses may be
lost. Since all commands have responses, the server can repeat any command to which there is
no response. In order to assure reliable reception of reports, LP-V001 devices can be configured
either in Normal or Ack’ed mode to send the reports. In the Normal mode the reports are simply
sent “as is” with no acknowledgment from the server. In the Ack’ed mode every report sent is
expected to be acknowledged by the server by sending back an ACK message back. If
acknowledgement
is not received within the specified timeout, the report is re-sent. If the report
is not acknowledged after the specified number of attempts, it is queued. If acknowledgement is
received after the report is queued (i.e. past timeout of the last attempt), it is ignored.
Report is not considered “complete” until its acknowledgement is received. Thus, if report X is
sent and report X+1 is triggered while waiting for acknowledgement of X, report X+1 will be
queued until such acknowledgement is received and only then sent. The LP-V001 will attempt to
re-send queued report(s) every time a new report is triggered. If there is more than one report
queued, the reports will attempt to be sent in the order of triggering and only once the report is
acknowledged, the next report is attempted. This assures that reports are sent and received in
order
Ack’ed mode assures that all reports are received, but adds overhead in time and data. Report
that is not
acknowledged
is sent again and
eventually
will be queued and sent again. The number
and frequency of re-tries is configurable via the Report Acknowledgement command.
3.6 Event Report Format
Reports are encoded as binary hex. It is also echoed to the debug UART in ASCII format.
3.7 Reset
There are a number of resets available on the device. Soft reset only restarts the software
running on the device. Hard reset is caused by resetting the whole basband module via a reset
pin. There is also an option to reset the GPS and the cellular sub-systems individually.
11
3.7.1 Context Preservation
When a self-initiated reset is performed due to Network Watchdog or by the Reset command
(modes 0,1), the context of the system is being preserved and is restored after the reset. The
context includes all the periodic timers, the report queue, the odometer, etc. This allows to
reset the unit as a troubleshooting
or preventive
measure without losing reports that are already
in the queue or are pending on running timers. Note that the reset process may cause 1-2min of
inaccuracy in the timers and should not be considered as very precise.
3.8 Startup Banner
After a reset a startup banner is printed through the UART only.
12
4 Test Method
4.1 Hardware
Test Item Description
Baseband Function Test • Power Input Test
• Power Consumption and Current Test
• Heat Dissipation Test
• UART Stability Test
• GPIO Level Test
• LED Stability Test
• Drop Down Test
• ESD Test
• High/Low Temperature Test
• Humidity Test
RF Test • RF Performance Test
• GPS Performance Test
•
Ant
e
nna Per
f
or
m
a
n
ce
T
est
4.2 Software Test
Test Environment Construct
Message Test environment
1. USB dongle and PC as message server
2. Send message to LP-V001
UDP Test environment
1. Connect dongle to PC and create dialup as ip server
2. LP-V001 create IP connection to server
UART Test environment
1. Connect LP-V001 to PC with com serial cable
2. Open Terminal tool and send at command
3. Response can be shown at terminal window
13
Mechanical Structure (mm)
eopar
d
Leopard
LP
-
V001
14
FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-- Consult the dealer or an experienced radio/TV technician for help.
This 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.
Changes or modifications not expressly approved by the party responsible for compliance could void the
user's authority to operate the equipment.
RF Exposure Warning Statements:
The antenna(s) used for this transmitter must be installed to provide a separation distance of at least
20 cm from all persons during the normal operations.
IC STATEMENT
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the
following two conditions: (1) this device may not cause interference, and (2) this device must accept any
interference, including interference that may cause undesired operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de
licence. L'exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de
brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d'en compromettre le fonctionnement.
In order to avoid the possibility of exceeding the IC radio frequency exposure limits, human proximity to
the antenna shall not be less than 20cm (8 inches) during normal operation.
Afin d'éviter la possibilité de dépasser les limites d'exposition aux fréquences radio de la IC CNR102, la
proximité humaine à l'antenne ne doit pas être inférieure à 20 cm (8 pouces) pendant le fonctionnement
normal.