Enfora MT 3050 User manual

MT 3050
User Guide
EMT3050UG001
Version:1.00
22 January, 2013

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General
TERMS OF USE OF NEW MATERIALS - PLEASE READ CAREFULLY
From time to time, Enfora, in its sole discretion, may make available for download on its website
(www.enfora.com), or may transmit via mail or email, updates or upgrades to, or new releases of, the
firmware, software or documentation for its products (collectively, 'New Materials'). Use of such New
Materials is subject to the terms and conditions set forth below, and may be subject to additional terms
and conditions as set forth in Enfora's Technical Support Policy (posted on its website) and/or any written
agreement between the user and Enfora.
All New Materials are provided AS IS. Enfora makes no warranty or representation with respect to the
merchantability, suitability, functionality, accuracy or completeness of any such New Materials. The user of
such New Materials assumes all risk (known or unknown) of such use. Enfora reserves all rights in such
New Materials. The user shall have only a revocable and limited license to use such New Materials in
connection with the products for which they are intended. Distribution or modification of any New
Materials without Enfora's consent is strictly prohibited.
IN NO EVENT WILL ENFORA BE RESPONSIBLE FOR ANY INCIDENTAL, INDIRECT, CONSEQUENTIAL OR
SPECIAL DAMAGES AS A RESULT OF THE USE OF ANY NEW MATERIALS. ENFORA'S MAXIMUM LIABILITY
FOR ANY CLAIM BASED ON THE NEW MATERIALS SHALL NOT EXCEED FIFTY U.S. DOLLARS ($50).
Version Verification
Please ensure you have the latest version of this document by downloading it from www.enfora.com

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Copyright
© 2012 Enfora, Inc. All rights reserved. Complying with all applicable copyright laws is the responsibility of
the user. Without limiting the rights under copyright, no part of this document may be reproduced, stored
in or introduced into a retrieval system, or transmitted in any form or by any means (electronic,
mechanical, photocopying, recording or otherwise), or for any purpose, without the express written
permission of Enfora, Inc.
Enfora and the Enfora logo are either registered trademarks or trademarks of Enfora, Inc. in the United
States.
251 Renner Pkwy
Richardson, TX 75080 USA
Phone: [phone]
Fax: [phone]
Email: [e-mail]
www.enfora.com

iii
Warranty Information
[Revised: 11/11/2010]
This warranty applies to (a) products sold directly by Enfora, unless a different warranty is specified in a
written agreement between Enfora and the purchaser; and (b) products sold to end users through a
distributor authorized by Enfora, but only where the authorized distributor does not provide a separate
warranty on such products, and Enfora has agreed to provide this warranty to such end users. If you
purchased the product from an authorized distributor, please check whether this warranty from Enfora, or
a separate warranty from the distributor, applies to your purchase. This warranty does not apply to any (i)
accessories or batteries for the products; or (ii) demonstration samples or prototypes of the products.
Unless otherwise provided in a written agreement between Enfora and the purchaser, all such accessories,
batteries, samples or prototypes are provided by Enfora AS IS without any warranty of any kind.
Enfora warrants to the original purchaser of the product from Enfora or its authorized distributor (as
applicable) that, for a period of one (1) year from the date of shipment of the product from Enfora, the
product hardware will be substantially free from defects in material or workmanship under normal
operation, and the product firmware will perform substantially in accordance with the product
documentation provided by Enfora. Enfora does not warrant that (a) the product hardware or firmware
will meet the purchaser's requirements; (b) the operation of the product hardware or firmware will be
uninterrupted or error-free; or (c) the product, when integrated in, or combined with, other products or
software not supplied by Enfora, will continue to perform substantially in accordance with the product
documentation. This limited warranty is for the benefit of the original purchaser, and is not transferable.
During the warranty period, Enfora, at its expense and in its sole discretion, will repair the product, or
replace the product with a corresponding or equivalent product, if it is determined to have a covered
defect, provided that the purchaser first notifies Enfora (directly or through its authorized distributor from
which the product was purchased) of any such defect, furnishes Enfora with a proof of purchase (if
required), requests and obtains a return merchandize authorization (RMA) number from Enfora, and
returns the product under that RMA to Enfora (or, at Enfora's option, to its authorized distributor), with the
shipping charges being prepaid by purchaser. If, upon reasonable examination of the returned product,
Enfora does not substantiate the defect claimed by purchaser, or determines that the defect is not covered
under this limited warranty, Enfora will not be required to repair or replace the product, but may instead
reship the product to the purchaser (or, at Enfora's option, to its authorized distributor where the product
can be made available to purchaser), in which case the purchaser shall be responsible for paying Enfora's
cost for reshipping the product to purchaser (or to Enfora's authorized distributor), and Enfora's usual
charges for unpacking, testing, and repacking the product for reshipment to purchaser (or to Enfora's
authorized distributor). Purchaser shall bear the risk of loss or damage in transit to any product returned
by purchaser to Enfora, or any returned product not found to be defective or covered under this warranty,
and reshipped by Enfora to purchaser (or to Enfora's authorized distributor). In the event Enfora repairs or

iv
replaces a defective product covered by this limited warranty, the repaired or replacement product will be
covered under this limited warranty for the remainder of the original warranty period on the defective
product, or a period of ninety (90) days, whichever is longer. If Enfora is unable to repair or replace a
defective product covered by this limited warranty, Enfora will provide to purchaser a credit or a refund
(at Enfora's option) of the original purchase price (excluding taxes and shipping charges). Any returned and
replaced product, or any product for which Enfora has furnished a credit or a refund, becomes the
property of Enfora.
Enfora shall not have any obligation to provide any firmware bug fixes, upgrades or new releases except as
may be necessary to correct any covered defect of which purchaser notifies Enfora in writing during the
warranty period. Enfora, from time to time and in its sole discretion, may make available for download on
its website (www.enfora.com), or may provide via email, certain firmware bug fixes, upgrades or new
releases for the product. Download and use of any such bug fixes, upgrades or new releases is subject to all
of the applicable terms and conditions of Enfora's technical support policy as posted and updated on its
website. Enfora shall have no obligation under this limited warranty for (a) normal wear and tear; (b) the
cost of procurement of substitute products; or (c) any defect that is (i) discovered by purchaser during the
warranty period but for which purchaser does not request an RMA number from Enfora, as required
above, until after the end of the warranty period, (ii) caused by any accident, misuse, abuse, improper
installation, handling or testing, or unauthorized repair or modification of the product, (iii) caused by use of
any materials not supplied by Enfora, or by use of the product other than in accordance with its
documentation, or (iv) the result of electrostatic discharge, electrical surge, fire, flood or similar causes.
The purchaser (or its customers, as applicable) shall be solely responsible for the proper configuration,
testing and verification of the Enfora product prior to deployment in the field, and for ensuring that any
end user product or system into which the Enfora product is integrated or incorporated operates as
intended and meets the requirements of purchaser (or its customers). Enfora shall have no responsibility
whatsoever for the integration, configuration, testing, verification, installation, upgrade, support or
maintenance of any such end user product or system, or for any liabilities, damages, costs or expenses
associated therewith.
ENFORA'S SOLE RESPONSIBILITY AND PURCHASER'S SOLE REMEDY UNDER THIS LIMITED WARRANTY
SHALL BE FOR ENFORA TO REPAIR OR REPLACE THE PRODUCT (OR IF REPAIR OR REPLACEMENT IS NOT
POSSIBLE, PROVIDE A CREDIT OR REFUND OF THE PURCHASE PRICE) AS PROVIDED ABOVE. ENFORA
EXPRESSLY DISCLAIMS ALL OTHER WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF NON- INFRINGEMENT, MERCHANTABILITY,
SATISFACTORY PERFORMANCE AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ENFORA
BE LIABLE FOR ANY INDIRECT, SPECIAL, EXEMPLARY, INCIDENTAL OR CONSEQUENTIAL DAMAGES
(INCLUDING WITHOUT LIMITATION LOSS OR INTERRUPTION OF USE, DATA, REVENUES OR PROFITS)
RESULTING FROM A BREACH OF THIS WARRANTY OR BASED ON ANY OTHER LEGAL THEORY, EVEN IF
ENFORA HAS BEEN ADVISED OF THE POSSIBILITY OR LIKELIHOOD OF SUCH DAMAGES.

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Some jurisdictions may require a longer warranty period than specified above and, accordingly, for
products sold in those jurisdictions the applicable warranty period shall be extended as required under the
laws of those jurisdictions. Furthermore, some jurisdictions may not allow the disclaimer of implied
warranties or the exclusion or limitation of incidental or consequential damages, so the above disclaimer,
limitation or exclusion may not apply to products sold in those jurisdictions. This limited warranty gives the
purchaser specific legal rights and the purchaser may have other legal rights that vary from jurisdiction to
jurisdiction. This limited warranty shall be governed by the laws of the State of Texas, United States of
America, without regard to conflict of laws principles. This limited warranty shall not be governed in any
respect by the United Nations Convention on Contracts for the International Sale of Goods.
Regulatory Compliance
FCC
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.
This equipment has been tested and found to comply with the limits pursuant to Part 15 Subpart B, Part 22,
and Part 24 of the FCC rules. These limits are designed to provide reasonable protection against harmful
interference in an appropriate installation. This equipment generates, uses, and can radiate radio
frequency energy and, if not used in accordance with instructions, can cause harmful radiation to radio
communication. However, there is no guarantee that interference will not occur in a particular installation.
RF EXPOSURE
Your device is a radio transmitter and receiver. It is designed and manufactured not to exceed the
emissions limits for exposure to radio frequency (RF) energy set by the Federal Communications
Commission (FCC) of the U.S. Government. These limits are part of comprehensive guidelines and establish
permitted levels of RF energy for the general population. These guidelines are based on the safety
standards previously set by the U.S. and international standards bodies. The standards include a substantial
safety margin designed to assure the safety of all persons, regardless of age and health.
The exposure standard for wireless RF devices, such as the device, employs a unit of measurement known
as the Specific Absorption Rate, or SAR. The SAR limit set by the FCC is 1.6W/kg. SAR values at or below
that limit are considered safe for the general public.
The device conforms with the RF exposure requirements for portable devices in accordance with FCC Part
2.1093.

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The transmitter is configured with a 10% transmission duty factor, for GPRS Multislot class 2 operation,
and is excluded from routine RF exposure evaluation in accordance with FCC Mobile and Portable Device
RF Exposure Procedures and Equipment Authorization Policies, KDB447498 D01, V04.
The CDMA transmitter is configured with a 1.6% transmission duty factor and is excluded from routine RF
exposure evaluation in accordance with FCC Mobile and Portable Device RF Exposure Procedures and
Equipment Authorization Policies, KDB447498 D01 v05.
R&TTE
Effective with HW revision 1, the device is in conformity with the requirements of the R&TTE directive
1999/5/EC. It has been fully tested and complies with all the requirements of EN301489-1, EN301489-3,
EN301489-7 and EN60950-1. Compliance to EN301511 has been demonstrated by testing on both the
device and the integrated module.
Industry Canada
This device complies with Industry Canada licence-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.
The MT 3050 transmitter is configured with a 10% transmission duty factor, for GPRS Multislot class 2
operation, and is excluded from routine RF exposure evaluation in accordance with the requirements of
RSS-102 section 2.5.
Cet appareil est conforme aux normes d’Industrie Canada exempts de license(s) RSS. Son fonctionnement
est soumis aux deux conditions suivantes : (1) cet appareil ne doit pas provoquer d’interférences, et (2) cet
appareil doit accepter toute interférence, y compris les interférences pouvant provoquer un
fonctionnement indésirable de l’appareil.
L’émetteur MT 3050 est configuré avec un facteur de service de transmission de 10%, pour l’opération en
GPRS multislot class 2, et est exclu de l’évaluation de routine d’exposition RF en conformité avec les
exigences du CNR-102 section 2.5.

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ROHS COMPLIANCE
The device complies with the European Union Restriction of the Use of Certain Hazardous Substances in
Electrical and Electronic Equipment ([RoHS) Directive (2002/95/EC), effective since July 1, 2006.
DISCLAIMER
The information and instructions contained within this publication comply with all FCC, GCF, PTCRB,
R&TTE, IMEI and other applicable codes that are in effect at the time of publication. Enfora disclaims all
responsibility for any act or omissions, or for breach of law, code or regulation, including local or state
codes, performed by a third party. Enfora strongly recommends that all installations, hookups,
transmissions, etc., be performed by persons who are experienced in the fields of radio frequency
technologies. Enfora acknowledges that the installation, setup and transmission guidelines contained within
this publication are guidelines, and that each installation may have variables outside of the guidelines
contained herein. Said variables must be taken into consideration when installing or using the product, and
Enfora shall not be responsible for installations or transmissions that fall outside of the parameters set
forth in this publication.

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Table of Contents
1 Introduction 1
1.1 Description 1
1.2 Technical Specifications 3
1.3 On-Board Diagnostics Overview 5
2 Features And Functions 6
2.1 GPS 6
2.2 LEDs 6
2.3 Power 7
2.4 Accelerometer 7
2.5 GSM Radio 7
2.6 CDMA Radio 8
2.7 New Event Reporting 8
2.7.1 Vehicle Identification Number (VIN) 8
2.7.2 Excessive Engine Speed (RPM) 8
2.7.3 Vehicle Speed 9
2.7.4 Vehicle Battery Voltage (Low Battery Warning) 9
2.7.5 Check Engine Light (MIL Alert) 9
2.7.6 Trip Odometer Reporting 9
2.7.7 Idle Time Reporting 10
2.7.8 Low Fuel Alert 10
2.7.9 Rapid Acceleration 10
2.7.10 Sudden Deceleration (Harsh Braking) 11
2.7.11 Motion Detection 11
2.7.12 OBDII Basic Event Data 11
2.7.13 Right Turn 11
2.7.14 Left Turn 12

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2.7.15 Up 12
2.7.16 Down 12
2.8 Micro USB Connector 13
2.9 Additional Software Features 13
2.9.1 AT Commands Over SMS 13
2.9.2 Store/Transmit Event Data 14
2.9.3 Synchronize RTC Time With GPS Time 14
2.9.4 Reporting Frequency 14
3 Installation 15
3.1 SIM Access (GSM2378 And UMT2212 Only) 15
3.1.1 Opening The Device 15
3.1.2 Inserting The SIM 17
3.1.3 Closing The Device 17
3.2 Activating The Device 18
3.3 Device Installation 18
3.4 Accelerometer Calibration 19
4 USB Driver Installation 21
4.1 USB Driver Installation Using The Enfora Driver Setup Utility (Windows XP) 21
4.2 USB Driver Installation Using The Enfora Driver Setup Utility (Windows 7) 27
5 Network Test Procedure 35
5.1 Configuring The Modem For Test Server Connection 35
5.2 Verifying Server Connectivity 36
6 Accesories 38
6.1 Backup Battery 38
6.2 Plastic Lever 38

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1 INTRODUCTION
1.1 Description
The MT 3050 is an integrated device for the Usage Based Insurance (UBI), telematics, and fleet
management markets. It has a rugged plastic housing, and it includes a disconnect alert feature using an
in-device backup battery. It is available in GSM/GPRS, 1xRTT, and HSDPA versions. The MT 3050 contains
an internal GPS, a cellular antenna, a J1962 compliant OBDII connector, a micro USB connector, and 3 LED
indicators.
The GSM2378 and UMT2212 variants also contain an internal SIM card holder.
Figure: 1 - Front Right View
Figure: 2 - Front View

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The MT 3050 has a printed label on the top side of the device. The figure below shows the information
included on the label.
Figure: 3 - MT 3050 Labels

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1.2 Technical Specifications
Housing
lDimensions: (L x W x H) 55 x 49 x 29 mm
lRugged textured plastic enclosure UL94-Vo fire
rated
Environment
lOperating: Battery version: -20ºC to +60ºC
lStorage: Battery version: -20ºC to +60ºC
lHumidity: Up to 85% non-condensing
lVibration: In accordance with SAE J1211
Radio Technology
lGSM/GPRS: 850/900/1800/1900 MHz
l1xRTT (CDMA2000) : 800/1900 MHz
lHSDPA (UMTS 3G): 850/1900 MHz or
900/1900/2100
l[GSM/GPRS/Edge 2G: 850/900/1800/1900 MHz]
GPS Functionality
lGPS Protocols: NMEA, Binary
lBuffered GPS Message Feature: Yes
Motion Detection
l3-axis digital accelerometer for motion alerts, tow-
ing alerts, and driver behavior reporting (rapid
acceleration, harsh braking) using configurable
thresholds
Packet Data
Packet data characteristics include:
lClass B, Multislot 8
lGSM/GPRS Rel 97
SMS Functionality includes:
lGSM/HSDPA SMS: Text, PDU, MO/MT,
Cell Broadcast
lCDMA SMS: Text, MO/MT
OBD Protocols
lISO 15765 (CAN)
lISO 9141-2
lISO 14230 KWP 2000
lJ1850 PWM
lJ1850 VPW
Some vehicles only support a subset of these protocols, which may
limit the functionality of the MT 3050.
SIM Card / Interface / I/O
lSIM Access: Internal
lCellular Antenna: Internal
lGPS Antenna: Internal
lLEDs: GPS (blue), Cellular (green), OBD (red)
lI/O Connector: Micro USB (2.0), command port
lOBDII Connector: J1962 compliant
On-Board Diagnostics (OBDII)
lJ1850 PWM, J1850 VPW, ISO-9141-2, ISO-14230
KWP2000, and ISO-15765 CAN protocols sup-
ported, VIN, excessive engine speed (RPM),
vehicle speed,vehicle battery voltage (low battery
warning), check engine light (MIL alert), odometer
(trip distance), idle time reporting, low fuel alert
Interface
lHost Protocols: AT commands, UDP API, FOTA
lInternal Protocols: UDP API, TCP API
lAPI Control/Status: AT commands, UDP API, TCP
API, AT commands over SMS
Battery
lRechargeable lithium-ion battery (230mAh)
lBattery recharging range is 0 to +45ºC (Internal
battery temperature)
Power
lOperating Voltage: 9 - 16 V DC operational for 12
V vehicle support per SAE J1455

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Part Numbers
lGSM2378-00 (GSM/GPRS)
lRTT2211-00 (CDMA 1xRTT)
lUMT2212-00 (HSDPA + GPRS/Edge)
lCAB2374-01 (J1962 extension cable)
Additional Features
lGSM Registration
lGPRS Registration
lVelocity
lGeo-Fence
lIP Status
lGPS Status
lTimer
lMT Power Save
lRTC Alarm
lMemory Full Percentage
lInput Event Counter
lGPS Overspeed
lMessage Log Count
lSMS Indication
lGPS Distance
Certifications
lFCC: Yes
lCE: Yes
lRoHS Compliant: Yes
lIndustry Canada:Yes
Document References
lSpider MT 3050 AT Command Set For GPRS
(EMT3050AT001)
lSpider MT 3050 AT Command Set For 1xCDMA
(EMT3050AT002)
lSpider MT 3050 AT Command Set For HSDPA
(EMT3050AT003)
lGSM Network Configuration Worksheet
(GSM0000AN019)
Applicable Products
The MT 3050 series has three models:
lGSM2378-00 (GSM/GPRS)
lRTT2211-00 (CDMA 1xRTT)
lUMT2212-00 (HSDPA + GPRS/Edge)
This user guide identifies the features that are specific to each
model.

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1.3 On-Board Diagnostics Overview
An On-Board Diagnostics (OBD) system controls engine functions and serves as the diagnostic control
network of the vehicle. All cars built and sold in the United States since 1996 must be equipped with the
newer OBDII system. The Enfora MT 3050 connects to a vehicle's OBDII port and monitors the OBDII
system using a variety of communication protocols.
The MT 3050 can be configured to provide notification messages based on events triggered by:
lAccelerometer change
lCheck engine light (MIL alert)
lEngine RPM
lGPS information
lIdle time
lLow fuel
lTrip Odometer (trip distance)
lVehicle battery voltage (low battery warning)
lVehicle Identification Number (VIN)
lVehicle speed
lOther events monitored by the OBDII system
Some vehicles are not compatible with the MT 3050. If the vehicle is not compatible
with the parameters the MT 3050 requires, then functionality may be limited,
problematic, or unavailable.
The SAE (Society of Automobile Engineers) 1979 standard defines the method for requesting diagnostics
data and provides a list of standard parameters from the engine control unit.
Compliance to this standard is the responsibility of the vehicle manufacturer, therefore Enfora cannot
guarantee performance of the MT 3050 with every vehicle.

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2 FEATURES AND FUNCTIONS
2.1 GPS
GPS functionality includes:
lNMEA update with all data points
lEnfora Binary Packets
lBuffered GPS message feature
lGeo-fencing
lVirtual odometer
2.2 LEDs
The MT 3050 includes LEDs to indicate OBDII, NETWORK, and GPS status.
The following figures show the MT 3050 connectors and LEDs.
Figure: 4 - MT 3050 Connectors
Figure: 5 - MT 3050 LEDs

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The following table describes the LED operation.
MT 3050 LEDs
OBD
(Red)
The OBD LED will flash at a fast rate when the unit is first connected to the OBD port for power. Once a protocol is
discovered through the OBD port, the LED will flash at a slow rate.
NETWORK
(Green)
The NETWORK LED will flash at a fast rate when the unit is finding cellular coverage. Once cellular coverage is found, the
LED shall flash at a slow rate.
GPS
(Blue)
The GPS LED will flash at a fast rate when the unit is acquiring a satellite fix. Once a fix is acquired, the LED will flash at
a slow rate.
Table: 6 - MT 3050 LEDs
2.3 Power
The MT 3050 requires 9-16 VDC minimum 2 amps input power. Pin 16 on the 16-Pin IO connector is the
positive power input, and pin 4 and 5 is the ground. This device contains a battery. This battery is not to be
removed or replaced by the user. Please dispose of this device according to local recycling laws.
2.4 Accelerometer
The three-axis digital accelerometer provides the following features:
lMotion alert (towing alert)
lDriver behavior reporting
lRapid acceleration
lHarsh braking
lConfigurable thresholds
lRange settings
lMode (Normal, Sleep, Wakeup)
lWakeup pause (20 to 2560 msec)
lSample Rate (0-25 per second)
lFilter Coefficient and Filter Bandwidth
lDevice Orientation Setup
2.5 GSM Radio
The MT 3050 (GSM2378) contains a quad-band (850/900/1800/1900 MHz) GSM radio.
lClass 4 (2W@850/900 MHz)
lClass 1 (1W@1800/1900 MHz)

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2.6 CDMA Radio
The MT 3050 (RTT2211) contains a dual-band (800/1900 MHz) CDMA radio.
lBC0-800 MHz – US Cell
lBC1-1900 MHz – US PCS
2.7 New Event Reporting
The MT 3050 has additional event reporting not supported by other Enfora products. For general event
reporting information and for detailed information about these new events refer to the MT 3050 AT
Command Document (GSM2374AT001).
2.7.1 Vehicle Identification Number (VIN)
The VIN is used as a unique identifier which is sent at first power up with heartbeat messages and with
events.
Vehicle manufacturers are responsible for defining the list of data returned,
therefore not all vehicles support retuning the Vehicle Identification Number.
2.7.2 Excessive Engine Speed (RPM)
Excessive engine speed alerts are triggered when the engine speed (in RPM) exceeds a defined RPM level
(in ¼ RPM increments) for a defined period of time in seconds (e.g., 30 seconds).
The MT 3050 has three definable thresholds.
Unnecessary wear and tear on the powertrain control module (PCM) may occur if constant or frequent
excessive engine speed is reported. The excessive engine speed event may be caused by one of the
following situations:
lObstructions, such as ice or mud, that may cause wheel slippage if the obstruction is not removed
from the vehicle
lRevving the RPM while in neutral
lSpeeding or reckless driving that causes excessive RPM engine speed

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The following AT command example sets the excessive engine speed threshold at 1 to 4000 RPM. Then, if
exceeded for 3 seconds, it triggers the input event. This event will clear once engine RPM is below 4000 for
30 seconds.
AT$OBDEES=1,4000,3,30
2.7.3 Vehicle Speed
If configured for vehicle speed alerts and the vehicle moves faster than one of the three configurable
thresholds (e.g., 70 MPH), then a vehicle speed alert is triggered.
The following AT Command example sets the vehicle speed threshold at 1 to 112 KPH (~70MPH). When the
threshold is exceeded for 10 seconds, an input event is triggered. This event will clear when the vehicle
speed is reduced to 104KPH (~65MPH).
AT$OBDSPD=1,112,10,104
2.7.4 Vehicle Battery Voltage (Low Battery Warning)
The vehicle battery voltage alert is triggered when the vehicle’s battery is reported to be below a threshold
(e.g., 10.8 V) for a user-defined period of time in seconds (e.g., 300 seconds).
The following AT Command example sets the low battery threshold to 10.8 volts. When the voltage
remains below this threshold for 300 seconds (5 minutes), it triggers an input event. Restoring voltage
above the threshold for 300 seconds (5 minutes) will clear this event.
AT$OBDLBL=10800,300,300
2.7.5 Check Engine Light (MIL Alert)
When the vehicle's “Check Engine” light illuminates, this indicates that a vehicle issue requires attention
for diagnosis and/or repair. This is also known as a Malfunction Indicator Light (MIL). A user can configure
a device to detect a MIL issue through the OBDII protocol, and to send an alert when the device detects
such an issue.
2.7.6 Trip Odometer Reporting
Trip odometer reporting provides the odometer miles accumulated from ignition-on to ignition-off, which
is considered a “trip”.

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Ignition events are not yet detected on hybrid or electric vehicles.
2.7.7 Idle Time Reporting
An idle time event is triggered when the vehicle’s engine is running without the vehicle moving (i.e.,
velocity less than 3 KPH) for a defined period of time in seconds (e.g., 300 seconds).
The alert is cleared when the vehicle speed exceeds another speed and time threshold.
Both the violation and clearing of the alert are reported if configured.
The following AT Command example sets the idle time speed threshold to 3 KPH for 5 minutes (300
seconds) with a clearance time of 30 seconds. If the speed remains below this threshold for 300 seconds (5
minutes), it triggers the input event. Restoring speed above this threshold for 30 seconds will clear this
event.
AT$OBDIDL=3,300,30
2.7.8 Low Fuel Alert
The low fuel alert triggers when the vehicle’s fuel level falls below a defined threshold in percent (e.g.,
12%) for a defined period of time in seconds (e.g., 60 seconds).
The following AT Command example sets the low fuel alert threshold to 12% for 1 minute (60 seconds)
with a clearance time of 30 seconds. If the fuel level remains below this threshold for 60 seconds, it
triggers the input event. Restoring the fuel level above this threshold for 30 seconds will clear this event.
AT$OBDLFL=12,60,30
2.7.9 Rapid Acceleration
Rapid acceleration events can be triggered when one of three available thresholds are exceeded as
determined by the accelerometer in milli-Gs (e.g., 0.75) for a defined period of time in seconds (e.g., 30
seconds).
The following AT Command example sets the rapid acceleration threshold #1 to .2G. If this threshold is
exceeded for 1 second, then an input event is triggered. Keeping the acceleration of the vehicle below this
threshold for 30 seconds will clear this event.
AT$OBDACL=1,200,1,30