Novatel Wireless LPP0208 GSM/ GPRS Embedded Module User Manual LPP0208IG001

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Enfora Enabler III LPP
Integration Guide
LPP0208IG001
Revision: 0.00
5/14/2010
www.enfora.com
GENERAL
TERMS OF USE OF NEW MATERIALS - PLEASE READ CAREFULLY
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IN NO EVENT WILL ENFORA BE RESPONSIBLE FOR ANY INCIDENTAL, INDIRECT,
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MATERIALS. ENFORA'S MAXIMUM LIABILITY FOR ANY CLAIM BASED ON THE NEW
MATERIALS SHALL NOT EXCEED FIFTY U.S. DOLLARS ($50).
COPYRIGHT
© 2009 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
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in the United States.
251 Renner Pkwy
Richardson, TX 75080 USA
972-633-4400
Phone: (972) 633-4400
Fax: (972) 633-4444
Email: info@ enfora.com
www.enfora.com
Integration Guide
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TABLE OF CONTENTS
General......................................................................................................................... 1
COPYRIGHT ................................................................................................................. 1
Table of Contents ......................................................................................................... 2
Table of Figures ............................................................................................................ 5
Table of Tables ............................................................................................................. 5
Safety Precautions .................................................................................................... 1
1.1
Important Safety Information .............................................................................. 1
Regulatory Compliance FCC ........................................ Error! Bookmark not defined.
2.1
Integration Considerations and Installation RequirementsError!
defined.
2.2
not
Disclaimer .......................................................................................................... 2
Manual Overview ....................................................................................................... 3
3.1
Bookmark
References ........................................................................................................ 3
3.1.1
Enfora Enabler III LPP Product Documentation Manuals .............................. 3
3.1.2
GSM Device Specifications ......................................................................... 3
3.1.3
Federal Communications Commission (FCC)............................................... 3
3.1.4
FCC Office of Engineering and Technology (OET) ........................................ 4
3.1.5
Industry Canada ......................................................................................... 4
3.1.6
Environmental Regulations .......................................................................... 4
3.1.7
Mechanical Specifications ........................................................................... 4
3.1.8
RF and EMI Specifications .......................................................................... 4
Introduction............................................................................................................... 5
4.1
Product Overview .............................................................................................. 5
4.2
Key Features of the Enabler III LPP Module ........................................................ 5
4.3
Providing Multi-Band Operation.......................................................................... 6
4.4
Summary of Enabler III LPP Module Features ..................................................... 7
4.5
General design guidelines for utilizing Enfora GSM modules ............................... 9
4.5.1
Advanced tips for an RF friendly layout...................................................... 10
4.5.1.1
4.5.1.2
4.5.1.3
Integration Guide
Ground Plane................................................................................................................. 10
Thermal Relief ................................................................................................................ 11
Antenna and RF Signal Trace ........................................................................................ 12
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4.5.1.4
4.5.2
Vbat Input ...................................................................................................................... 13
Audio Reference Design............................................................................ 15
4.5.2.1
4.5.2.2
4.6
Audio Schematics .......................................................................................................... 15
Audio Layout ................................................................................................................. 15
Handling and Soldering Guidelines ................................................................... 15
Technical Specifications .......................................................................................... 16
5.1
Enabler III LPP Module Block Diagram ............................................................. 16
5.2
Detailed Product Specifications ........................................................................ 17
5.3
Operating Power .............................................................................................. 18
5.3.1
Typical Input Current ................................................................................. 18
5.3.2
GSM Transmit Power ................................................................................ 19
5.3.3
GSM Receiver Sensitivity .......................................................................... 19
Physical Interfaces .................................................................................................. 20
6.1
Module Mounting to Host Board (Reference) .................................................... 20
6.2
I/O Pin Assignments......................................................................................... 20
6.3
Circuit Protection ............................................................................................. 22
6.4
Control Connector Signal Descriptions and Functions ...................................... 23
6.4.1
Module Power (Pins 30, 31) ...................................................................... 23
6.4.2
On/Off Signal (Pin 4).................................................................................. 24
6.4.3
On/Off Status (Pin 5) ................................................................................. 24
6.4.4
General Purpose Input Signals (Pins 10, 11) .............................................. 24
6.4.5
General Purpose Output Signals (Pins 12, 13) ........................................... 24
6.4.6
Reset Signal (Pin 24) ................................................................................. 24
6.4.7
USB (Pins 34, 35, 36) ............................................................................... 25
6.4.8
Serial Interfaces ........................................................................................ 26
6.4.8.1
6.4.8.2
Main Serial Interface (Pins 17, 18) .................................................................................. 26
GPS Serial Interface (Pin 19) .......................................................................................... 26
6.4.9
Handset Microphone Input (Pins 37, 38) ................................................... 27
6.4.10
Handset Speaker Output (Pins 39, 40) ...................................................... 27
6.5
Subscriber Identity Module (SIM) (Pins 42, 43, 44, 45, 46) ................................ 29
6.5.1
Using a Remote SIM with the Enfora Enabler III LPP Module (Pins 42, 43, 44,
45, 46) 29
6.5.1.1
6.6
Remote SIM Component Information ............................................................................. 31
Antenna ........................................................................................................... 32
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6.6.1
GSM ......................................................................................................... 32
6.6.2
GPS.......................................................................................................... 32
GPS Performance ................................................................................................... 33
GSM/GPRS Modes of Operation ............................................................................. 34
8.1
Enabling the Transmission Modes for the GSM/GPRS Services........................ 34
8.2
Voice Communication ...................................................................................... 34
8.3
SMS: Short Message Services ......................................................................... 35
8.4
SIM Operation.................................................................................................. 35
8.4.1
Provisioning the SIM ................................................................................. 35
8.5
GPRS Services Supported by the Enfora Enabler III LPP Module ...................... 36
8.6
Selecting the GSM Modes of Operation ........................................................... 36
8.7
Power Management ......................................................................................... 36
Software Interface ................................................................................................... 37
9.1
Format for the AT Commands .......................................................................... 37
9.2
Enfora AT Command Set ................................................................................. 38
10
APPENDIX A - LIMITED WARRANTY ................................................................... 39
10.1
Scope ................................................................... Error! Bookmark not defined.
10.2
Hardware .............................................................. Error! Bookmark not defined.
10.3
Software ............................................................... Error! Bookmark not defined.
10.4
Exceptions and Disclaimers................................... Error! Bookmark not defined.
10.5
Other Considerations ............................................ Error! Bookmark not defined.
10.6
Governing Law...................................................... Error! Bookmark not defined.
11
APPENDIX B - Regulations and Compliance ........................................................ 42
11.1
GCF/PTCRB Approval (Formerly FTA) ................... Error! Bookmark not defined.
11.2 Electromagnetic Compatibility (EMC) and Safety RequirementsError!
not defined.
Bookmark
11.3
EMC/Safety Requirements for the USA ................. Error! Bookmark not defined.
11.4
Human Exposure Compliance Statement .............. Error! Bookmark not defined.
11.4.1
LPP0208 GSM/GPRS Module ....................... Error! Bookmark not defined.
11.5
Compliance with FCC Regulations ........................ Error! Bookmark not defined.
11.6
Unintentional Radiators, Part 15 ............................ Error! Bookmark not defined.
11.7
Intentional Radiators, Part 22 & 24 ........................ Error! Bookmark not defined.
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11.8 Instructions to the Original Equipment Manufacturer (OEM)Error! Bookmark not
defined.
11.8.1
Definitions ...................................................... Error! Bookmark not defined.
11.8.2
OEM Responsibilities for Products Containing the Enabler III LPP module
Error! Bookmark not defined.
11.8.3 Specific OEM Responsibilities for Portable Products and Applications .. Error!
Bookmark not defined.
11.8.4 Specific OEM Responsibilities for Mobile Products and Applications..... Error!
Bookmark not defined.
11.8.5 Specific OEM Responsibilities for Fixed Products and Applications....... Error!
Bookmark not defined.
11.9 EMC/Safety Requirements for the Countries of the European Union (EU) ..... Error!
Bookmark not defined.
11.10
EMC/Safety Requirements for Other Countries .. Error! Bookmark not defined.
12
APPENDIX C - Glossary and Acronyms ............................................................... 46
13
APPENDIX E - Contacting Enfora......................................................................... 49
TABLE OF FIGURES
Figure 1 - Example of good ground plane for GSM modules ........................................... 10
Figure 2 - Example of a POOR RF Thermal Relief ........................................................... 11
Figure 3 - Example of a GOOD RF Thermal Relief ........................................................... 12
Figure 4 - Example of Vbat Voltage Droop ...................................................................... 13
Figure 5 - Audio Reference Design Schematic ................................................................ 15
Figure 6 - Enabler III LPP Module Block Diagram ............................................................ 16
Figure 7 – Side and Front of Module with Pin 1 reference .... Error! Bookmark not defined.
Figure 8 - Module Footprint ................................................. Error! Bookmark not defined.
Figure 9 - Copper PADs (Recommended) ............................ Error! Bookmark not defined.
Figure 10 - Solder Mask (Reccomended) ............................. Error! Bookmark not defined.
Figure 11 - Paste Mask (Reccomended) based on 0.004” stencil.Error! Bookmark not
defined.
Figure 12 - GPS Antenna Sample Schematic.................................................................. 32
Figure 13 - Remote SIM Interface ................................................................................... 30
TABLE OF TABLES
Table 1 - Enabler III LPP Key Features .............................................................................. 6
Integration Guide
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Table 2: Typical Operating Power ..................................................................................... 8
Table 3 - Enabler III LPP Pin Assignments ...................................................................... 21
Table 4: ESD Protection Levels....................................................................................... 22
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Enfora Enabler III LPP
1 Safety Precautions
1.1 IMPORTANT SAFETY INFORMATION
The following information applies to the devices described in this manual. Always
observe all standard and accepted safety precautions and guidelines when
handling any electrical device.
•
•
•
•
Save this manual: it contains important safety information and operating
instructions.
Do not expose the Enfora Enabler III LPP product to open flames.
Ensure that liquids do not spill onto the devices.
Do not attempt to disassemble the product: Doing so will void the warranty.
With the exception of the Subscriber Identification Module (SIM), this product
does not contain consumer-serviceable components.
Integration Guide
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Enfora Enabler III LPP
1.2 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.
Enfora shall not be liable for consequential or incidental damages, injury to any
person or property, anticipated or lost profits, loss of time, or other losses incurred
by Customer or any third party in connection with the installation of the Products or
Customer's failure to comply with the information and instructions contained herein.
Warning: The Enabler III LPP platform is designed with features
to support a robust connection. There are instances where the
module performance is beyond the control of the intended
design. Integrated designs that require 24 by 7 operation must
implement power control via an external circuit or by
implementing power management as specified within this design
guide.
Integration Guide
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Enfora Enabler III LPP
2 Manual Overview
This document describes the available hardware interface of the Enabler III LPP
module. The purpose of this document is to define the electrical, mechanical and
software interfaces while providing detailed technical information in order to
streamline the process of hardware and system integration.
2.1 REFERENCES
2.1.1 ENFORA ENABLER III LPP PRODUCT DOCUMENTATION MANUALS
•
•
•
•
LPP0208AT001 - Enfora Enabler III LPP AT Command Set Reference
GSM0308UG001 - Enfora GSM-GPRS Family API Reference
LPP0208PR001 – Enfora Enabler III LPP Programming Reference
LPP0208SD001 – Enfora Enabler III LPP SDK Reference
2.1.2 GSM DEVICE SPECIFICATIONS
•
3GPP TS 51010-1 (850, 900,1800,1900 MHz devices)
To view the latest release, go to:
http://www.3gpp.org/ftp/Specs/html-info/51010-1.htm
2.1.3 FEDERAL COMMUNICATIONS COMMISSION (FCC)
Internet: http://www.fcc.gov/
•
FCC Rules, Part 24


•
•
•
47 CFR Subpart E--Broadband PCS
47 CFR § 24.52, sections 1.1307(b), 2.1091, and 2.1093
FCC Rules, Part 22 for GSM 850
FCC Rules, Part 15
FCC Rules, Part 2


Integration Guide
Subpart J--Equipment Authorization Procedures
Section 2.925
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Enfora Enabler III LPP
2.1.4 FCC OFFICE OF ENGINEERING AND TECHNOLOGY (OET)
Internet: http://www.fcc.gov.oet/
•
•
Bulletin Number 65 "Evaluating Compliance with FCC Guidelines for Human
Exposure to Radio Frequency Electromagnetic Fields"
Supplement C "Additional Information for Evaluating Compliance of Mobile and
Portable Devices with FCC Limits for Exposure to Radio Frequency Emissions"
2.1.5 INDUSTRY CANADA
•
•
•
RSS-132
RSS-133
ICES-003
2.1.6 ENVIRONMENTAL REGULATIONS
•
•
National Environmental Policy Act (NEPA) of 1969 (Part 1, Subpart 1)
RoHS Compiant
2.1.7 MECHANICAL SPECIFICATIONS
•
•
•
•
•
•
•
ASTM D999
ASTM D775
IEC 68-2-27
Bellcore Gr-63-CORE
ETS 300 019-1-1 Class 1.2
ETS 300 019-1-2 Class 2.1
ETS 300 019-1-3 Class 3.1
2.1.8 RF AND EMI SPECIFICATIONS
•
•
•
•
ETSI Standards
EN 61000-4-6
EN 61000-4-3
3GPP TS 51.010-1, Section 12.2
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Enfora Enabler III LPP
3 Introduction
3.1 PRODUCT OVERVIEW
The Enfora Enabler III LPP module is a compact, wireless OEM module that utilizes
the Global System for Mobile Communications (GSM) and General Packet Radio
Services (GPRS) international communications standard to provide two-way
wireless capabilities via GSM services. This GSM/GPRS module is combined with
a Global Positioning System (GPS) chipset to provide physical location, an MSP430
processor to ensure very low power standby configurations, and vibration sensor to
detect movement of the module. The Enfora Enabler III LPP module is a fully Typeapproved
GSM/GPRS
device,
enabling
application-specific,
two-way
communication and control.
The small size of the Enfora Enabler III LPP module allows it to be integrated easily
into the application and packaging.
3.2 KEY FEATURES OF THE ENABLER III LPP MODULE
The following table summarizes the main features of the Enfora Enabler III LPP
Radio Module.
Interface
Data input/output interface
Primary serial port
Secondary serial Port
USB port
Audio
Command protocol
Subscriber
Identification
Module (SIM)
Battery Charger
Power
Electrical power
Peak currents and average
power dissipation
Radio
Features
Frequency bands
GSM/GPRS
supported.
Integration Guide
features
52 position 1.27mm pitch
2.2 V logic levels, ‘2-wire’ UART implementation.
Single TX from GPS, NMEA data only. (2.2 V logic
levels)
USB Debug and Configuration
Analog audio
Enfora Packet API, GSM AT command set, Enfora
MCP
USIM port with SIM detect.
Lithium Ion battery charger, temperature and battery
ID analog inputs
3.3 to 4.5 Vdc (vbat)
Refer to the Operating Power table in the Technical
Specifications for peak currents and average power
dissipation for various modes of operation.
EGSM 900, GSM1800, GSM 850 and GSM 1900
capability.
Provides for all GSM/GPRS authentication,
encryption, and frequency hopping algorithms.
GPRS Coding Schemes CS1-CS4 supported.
Multi-Slot Class 10 (4RX/2TX, Max 5 Slots).
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Enfora Enabler III LPP
Regulatory
GSM/GPRS
Functionality
Audio Input
Audio
Outputs
SIM
Software
Agency approvals
GCF Type Approval
PTCRB Type Approval
FCC Certification
RTTE
CE (European Community Certification)
IC (Industry Canada) Approval
Mobile-originated and mobile-terminated SMS messages: up to 140 bytes or up to
160 GSM 7-bit ASCII characters.
Reception of Cell Broadcast Message
SMS Receipt acknowledgement
Voice (EFR, FR, HR, AMR)
Supports Unstructured Supplementary Service Data (USSD)
Multi-Slot Class 10 Supported (4Rx/2TX), (5 Slot Max) PBCCH/PCCCH Supported
Handset Microphone biasing, internal
Handset microphone input (MICIN, MICIP pins)
Handset earphone outputs (EARP, EARN pins)
1.8/3 V Mini-Subscriber Identity Module (SIM) compatible
Free RTOS included
Table 1 - Enabler III LPP Key Features
3.3 PROVIDING MULTI-BAND OPERATION
The Enfora Enabler III LPP module provides 4 frequency bands for compatibility
with worldwide frequency standards. 850/1900 frequency bands are primarily used
in North and South America, while 900/1800 bands are used throughout the world.
The Enabler III LPP offers all four bands for use worldwide.
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Enfora Enabler III LPP
3.4 SUMMARY OF ENABLER III LPP MODULE FEATURES
The following summarizes the main features of the Enfora Enabler III LPP Module.
Mechanical:
Dimensions
38.5 mm x 33.6 mm x 4.19 mm
Weight
8.6g
Packet Data Transfer:
Protocol
GPRS Release 97
Coding Schemes
CS1-CS4
Multi-Slot Capability (Demonstrated MS10 (4RX/2TX) (Max 5 Slots)
@MS10)
Packet Channel Support
PBCCH/PCCCH
Short Message Services:
GSM SMS
MO, MT, CB, Text and PDU Modes
GPRS SMS
MO, MT, CB, Text and PDU Modes
Voice Capability:
Speech Codec
EFR, FR, HR, AMR
GSM/GPRS Radio Performance Multi-Band:
LPP0208 Radio Frequencies
850/900/1800/1900 MHz
Sensitivity
< -106 dBm (Typical GPRS CS1)
850 & 900 MHz Transmit Power
Class 4 (2 W)
1800 & 1900 MHz Transmit Power
Class 1 (1 W)
System Requirements:
Host Interface
Serial Interface. 2.2 V logic levels.
DC Voltage
3.3 to 4.5 Vdc
Application Interface:
Host Protocol
MCP Protocol, AT Commands, OTA Enfora Packet API and
USB
Internal Protocols
UDP stack and TCP/IP stack
Physical Interface
2 serial (2.2 V logic levels, primary - Default rate 115,200
baud; secondary - rate 19,200 baud), 1 USB
Audio Interface
Handset microphone input (MICIN, MICIP pins), Handset
earphone outputs (EARP, EARN pins)
SIM Interface:
Remote SIM
1.8/3-Volt SIM Capability
Environmental:
Compliant Operating Temperature
-20 °C to 60 °C (Fully GSM Spec Compliant)
Operating Temperature
-30 °C to 70 °C (Not fully GSM Spec Compliant)
Storage Temperature
-40 °C to 85 °C
Humidity
5 to 95% non-condensing
EMC:
Emissions
FCC
Parts
15,22
24,
Class
3GPP
TS
51010-1,
Section
12.2
EN 55022 Class B
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Enfora Enabler III LPP
Operating Power (TYPICAL):
Function Block
State
Average
Current
Units
MSP
Idle, Serial Port Connected
1.9
mA
Idle, Serial Port Connected,
Accelerometer ON with
movement
2.02
mA
Shutdown
<6
uA
Acquiring
54
mA
Tracking
47
mA
GSM only
Registered, sleep=0
57
mA
GSM + GPS
GPRS 850
GPRS 850, GPS Acquisition
GPRS 850, GPS Tracking
275
328
320
mA
mA
mA
GPS
Table 2: Typical Operating Power
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Enfora Enabler III LPP
GSM transmit Power:
1800/1900 MHz
GSM Power Class 1
(30 dBm ± 2 dB @ antenna connection)
850/900 MHz
GSM Power Class 4
(33 dBm ± 2 dB @ antenna connection)
GSM/GPRS Receiver Sensitivity (Typical):
1800/1900 MHz
<-106 dBm, GPRS Coding Scheme 1 (CS1)
850/900 MHz
<-106 dBm, GPRS Coding Scheme 1 (CS1)
3.5 GENERAL DESIGN GUIDELINES FOR UTILIZING
ENFORA GSM MODULES
The following guidelines are provided in an effort to allow Enabler III LPP module
users to successfully implement their PCB layout to obtain the best performance.
This includes the lowest possible EMI emissions, maximum thermal conduction,
mechanical integrity, and voice quality. The Enabler III LPP module is a very
compact, high performance design, yet it is easy to interface into the final product.
In order to realize its full potential, designers should pay close attention to ground
structures, the routing of RF and Digital traces, and the size of the power supply
lines.
Warning: These design tips are strictly guidelines and are not
meant to be a complete list of items that guarantee actual
performance. Each application is different and may require
variation from these guidelines; however, care should be given to
utilize these sound engineering principles whenever possible.
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Enfora Enabler III LPP
3.5.1 ADVANCED TIPS FOR AN RF FRIENDLY LAYOUT
3.5.1.1 GROUND PLANE
To ensure the lowest possible EMI emissions and maximum thermal conductivity, it
is recommended that all metal tabs on the GSM module shield must be soldered
down onto a continuous ground plane that runs under the entire module. Ample
ground vias should be provided to create a low impedance ground. It is
recommended to minimize the number of I/O and power traces under the GSM
module to allow for as much ground plane as possible. An example of a good
ground structure and pad layout is shown below in Figure 1 - Example of good
ground plane for GSM modules.
Figure 1 - Example of good ground plane for GSM modules
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Enfora Enabler III LPP
3.5.1.2 THERMAL RELIEF
Because the ground plane acts as a large heat sink, it can affect the solderability of
components. A common method to reduce this effect is to use thermal relief
around the pad in question. However, great care must be taken when using
thermal relief for high current or high frequency applications
For example, a large thermal relief like the one shown in Figure 2 can serve the
purpose for general applications such as low current, low speed data lines, DC
connections and audio frequency applications. However, such thermal relief
structures should be avoided for applications where high current and/or high
frequency is involved, such as those using the Enabler Module. Depending on the
frequency of operation, the long narrow thermal relief traces between the pad and
the ground plane act like an RF choke. These RF chokes become higher
impedance at harmonics of the fundamental frequency making it problematic for
high frequency suppression. This can make it difficult to pass type approval testing.
POOR RF thermal
Figure 2 - Example of a POOR RF Thermal Relief
If thermal relief is necessary, it is recommended that you use short, fat traces similar
to those shown in Figure 3. This will still provide a solderable connection, while
providing a better RF connection. Making them shorter also allows for a more
continuous ground plane due to less copper being removed from the area. It is
also recommended to have ground vias around all thermal relief of critical ground
pins.
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Enfora Enabler III LPP
GOOD RF thermal
Figure 3 - Example of a GOOD RF Thermal Relief
3.5.1.3 ANTENNA AND RF SIGNAL TRACE
The PCB trace that feeds the RF output port must be designed for a 50 ohm
characteristic impedance, coplanar, or routed into internal layers to keep the top
layer continuous around and underneath the Enabler module. Ample ground vias
should be provided around the RF contacts, the RF trace and launch pad. If
possible, keep I/O and power traces away from the RF port. This includes traces
running parallel or orthogonal to it. Thermal relief should not be used on the
antenna output port ground pads. The designer must pay close attention to the
size of the pad and thickness of the dielectric beneath the signal pad and trace.
Most PCB manufacturers can adjust the trace width to maintain 50 ohms
impedance if the traces are identified and instructions are included on the FAB
drawing. This service is typically provided at no or minimal additional cost.
For minimum RF emissions due to the fundamental frequency of operation, the
Enabler module works best with an antenna load that has a VSWR of 1.5:1 or
better. The antenna should not have gain at the harmonic frequencies, otherwise,
the conducted harmonics could get amplified to a point where the product no
longer passes type approval. However, for applications where antenna quality is
less than ideal, it is recommended to have a low pass filter (Pi structure with N=3) in
the RF path to the antenna. This is a secondary plan should there be a need to
lower harmonic levels at frequencies above the PCS band. The pad structure may
also be used to match the antenna load impedance, if required. If it is not needed,
a capacitor of low reactance may be used to bridge the Pi structure.
Integration Guide
P a g e 12
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Enfora Enabler III LPP
The RF cable going between the Enable module and the antenna is very lossy,
therefore, the length of this cable should be kept as short as possible.
3.5.1.4 VBAT INPUT
The Enabler Vbat input can have a relative high current draw that can fluctuate
rapidly, especially when transmitting at max power and burst mode. The Vbat
interface must be designed to provide the required instantaneous voltage and
current with minimal voltage droop. This includes both sufficient bulk decoupling
capacitance as well as adequate layout provisions.
Similar to the discussion on thermal relief, the use of narrow traces to connect the
Vbat pins to the source voltage can act like a high impedance and cause a
significant voltage droop when higher currents are required as shown in Figure 4. If
the Vbat drops too low, the Enabler modules will reset. To minimize the trace loss,
it is suggested to use a larger trace that spans several pins. The layout should
provide sufficient trace width over the entire trace from the Enabler module all the
way to the source of the Vbat voltage. Any transitions between layers for this trace
should utilize multiple vias.
Figure 4 - Example of Vbat Voltage Droop
Two 470 uF, low ESR, tantalum capacitors are included in the design to provide
decoupling of Vbat input voltage. Bulk decoupling capacitance is not required at
the Vbat input external to the Enabler module.
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Enfora Enabler III LPP
Integration Guide
P a g e 14
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Enfora Enabler III LPP
3.5.2 AUDIO REFERENCE DESIGN
The audio quality is very dependent on the circuit design and layout. As an aid to
obtaining good audio quality, a reference design has been included below. It has
been proven to provide good performance on the SDK module.
3.5.2.1 AUDIO SCHEMATICS
Figure 5 - Audio Reference Design Schematic
3.5.2.2 AUDIO LAYOUT
Layout plots for the audio section of the SDK are available upon request.
3.6 HANDLING AND SOLDERING GUIDELINES
The guidelines presented in IPC/JEDEC J-STD-020C for handling, preparation, and
reflow of lead-free devices should be applied to the Enabler III LPP module. Care
should be taken to minimize module moisture exposure before reflow. The module
is classified as a Type 3 MSL (moisture sensitivity level).
Integration Guide
P a g e 15
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Enfora Enabler III LPP
4 Technical Specifications
4.1 ENABLER III LPP MODULE BLOCK DIAGRAM
Figure 6 - Enabler III LPP Module Block Diagram
Integration Guide
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Enfora Enabler III LPP
4.2 DETAILED PRODUCT SPECIFICATIONS
Physical Dimensions and Weight
Size (L x W x H)
Weight
38.5 mm x 33.6 mm x 4.19 mm
< 8.6 grams
Climatic: Operational
GSM Compliant temperature
Operating temperature
-20°C to +60°C
-30°C to +70°C
Relative humidity
5 - 95%
Air pressure (altitude)
70 kPa to 106 kPa (-400 m to 3000 m)
Climatic: Storage and Transportation
Duration
Ambient temperature
Relative humidity
Thermal shock
Altitude
24 months
-40°C to +85°C
5% to 95%, non condensing (at 4C)
-50°C to +23°C, +70°C to +23°C; < 5 min
-400 m to 15,000 m
Mechanical: Operational
Operational vibration, sinusoidal
Operational vibration, random
3.0 mm disp, 2 to 9 Hz; 1 m/s2 , 9 to 350 Hz
0.1 m2 /s3 , 2 to 200 Hz
Mechanical: Storage and Transportation
Transportation vibration, packaged
Drop, packaged
Shock, un-packaged
Drop, un-packaged
ASTM D999
ASTM D775 method A, 10 drops
150 m/s2 , 11 ms, half-sine per IEC 68-2-27
4-inch drop per Bellcore GR-63-CORE
Mechanical: Proposed Standards
Transportation
Operational
Storage
Electromagnetic Emissions
Radiated spurious
Integration Guide
ETSI Standard ETS 300 019-1-2 Class 2.3
Transportation
ETSI Standard ETS 300 019-1-3 Class 3.1
Operational
ETSI Standard ETS 300 019-1-1 Class 1.2
Storage
FCC Part 22 & 24 / Part 15 Class \ B
3GPP TS 51.010-1 Section 12.2
EN 55022 Class B
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Enfora Enabler III LPP
4.3 OPERATING POWER
The Enfora Enabler III LPP module requires an input voltage of 3.3 Vdc to 4.5 Vdc.
4.3.1 TYPICAL INPUT CURRENT
Test Conditions:
•
Typical Results @ 3.8V, 20 deg C, terminated into a 50Ω load.
GSM Operation
Band
Mode
1900
1800
1 RX/1 TX, Full
Power
900
850
ALL
Idle
Input Current
Low
Nom/Avg
TBD
TBD
TBD
TBD
TBD
GPRS Operation
Input Current
Band
Low
Mode
Nom/Avg
High/Peak
High/Peak
Units
mA
mA
mA
mA
Units
4 RX/1TX, Full Power
TBD
mA
2 RX/2TX, Full Power
TBD
mA
1 RX/1TX, Full Power
TBD
mA
4 RX/1TX, Full Power
TBD
mA
2 RX/2TX, Full Power
TBD
mA
1 RX/1TX, Full Power
TBD
mA
4 RX/1TX, Full Power
TBD
mA
2 RX/2TX, Full Power
TBD
mA
1 RX/1TX, Full Power
TBD
mA
4 RX/1TX, Full Power
TBD
mA
850
2 RX/2TX, Full Power
TBD
mA
ALL
1 RX/1TX, Full Power
Idle
TBD
TBD
mA
mA
1900
1800
900
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Enfora Enabler III LPP
4.3.2 GSM TRANSMIT POWER
Enfora Enabler III
LPP Module
1900 MHz
1800 MHz
850 MHz
900 MHz
Power Class
Transmit Power
GSM Power Class 1
1-W conducted power maximum
(30 dBm +/- 2 dB), measured at the
antenna port
2-W conducted power maximum
(33 dBm +/- 2 dB), measured at the
antenna port
GSM Power Class 4
4.3.3 GSM RECEIVER SENSITIVITY
Enfora Enabler III
LPP Module
1900 MHz
1800 MHz
900 MHz
850 MHz
Integration Guide
Sensitivity
Mode
-106 dBm (typical)
GPRS Coding Scheme 1 (CS1)
-106 dBm (typical)
GPRS Coding Scheme 1 (CS1)
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Enfora Enabler III LPP
5 Physical Interfaces
5.1 MODULE MOUNTING TO HOST BOARD
(REFERENCE)
TBD
5.2 I/O PIN ASSIGNMENTS
The following table shows the pin assignments for the input/output connector.
Pin #
I/O
Enabler LPP G
10
11
12
13
14
15
16
17
18
GND
BATT_TEMP
BATT_ID
POWER ON/OFF
STATUS
Reserved
Reserved
Reserved
Reserved
GPI1
GPI2
GPO1
GPO2
Reserved
Reserved
Reserved
MSP_UART_TX
MSP_UART_RX
19
GPS_TX
PWR
Reserved
Reserved
Reserved
Reserved
MSP_RESET
GND
GND
GSM_RF_ANT
GND
GND
VBAT_GSM
VBAT
VIN
20
21
22
23
24
25
26
27
28
29
30
31
32
Integration Guide
P a g e 20
Description/Comments
(Default
Function / Secondary Function
System Ground
Battery Temperature Input
Battery Identification Input
Power ON/OFF control Input
Power ON/OFF status Output
General Purpose INPUT 1
General Purpose INPUT 2
General Purpose OUTPUT 1
General Purpose OUTPUT 2
UART Serial Data Output From Module
UART Serial Data Input To Module
UART Serial Data Output (NMEA data
only)
Reset Input
System Ground
System Ground
GSM RF Antenna
System Ground
System Ground
Power for GSM radio
Power for non-GSM systems
Battery Charger input power supply
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Enfora Enabler III LPP
Pin #
I/O
Enabler LPP G
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
I/O
I/O
I/O
I/O
PWR
VIO
USB_DUSB_D+
USB_VBUS
MIC+
MICEAR+
EARGND
SIM_RESET
SIM_CLK
SIM_IO
SIM_VDD
SIM_DETECT
GND
GND
GPS_RF_ANT
GND
RESERVED
RESERVED
Description/Comments
(Default
Function / Secondary Function
2.2 / 3.3 VDC Output
USB Data Bus (negative Terminal)
USB Data Bus (Positive Terminal)
USB Power Supply Line
Microphone amplifier positive input
Microphone amplifier negative input
Speaker positive output
Speaker negative output
System Ground
SIM Card Reset
SIM Card Reference Clock
SIM Card I/O Data
SIM Output Voltage 1.8 V / 2.85 V
SIM Card Detect
System Ground
System Ground
GPS RF Antenna
System Ground
Table 3 - Enabler III LPP Pin Assignments
I = Input into Module
O = Output from Module
Integration Guide
P = Power Input to Module
R = Power Return from Module
P a g e 21
I/O = Input/Output to/from Module
PWR = Other Power
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Enfora Enabler III LPP
5.3 CIRCUIT PROTECTION
Other than very low level ESD protection within the module’s integrated circuits, the
module does not have any protection against ESD events or other excursions that
exceed the specified operating parameters.
Generally, ESD protection (typically TVS/Transorb devices) should be added to all
signals that leave the host board. This includes VBAT/VCC.
Series resistors (typically 47Ω) can also be added in series with data lines to limit
the peak current during a voltage excursion.
Warning: Do not add series resistance to the SIM electrical.
Minimum ESD Protection Levels
ESD/Input Voltage
Pin #’s
High/Peak
500
Units
200
2000
500
8000
Pins 4-16, 17, 18,
19, 34, 35
Pins
(all
VBUS/PWR), 37,
38, 42, 43, 44, 46
RF Antenna
ESD Test Method
Human Body Model
EIA/JEDEC22-A114-A
Charge Device Model
EIA/JEDEC22-C101-A
Human Body Model
EIA/JEDEC22-A114-A
Charge Device Model
EIA/JEDEC22-C101-A
IEC 61000-4-2
Table 4: ESD Protection Levels
Warning: It is the Integrator’s responsibility to protect the Enabler III
LPP module from electrical disturbances and excursions, which exceed
the specified operating parameters.
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Enfora Enabler III LPP
5.4 CONTROL CONNECTOR SIGNAL DESCRIPTIONS
AND FUNCTIONS
Note: The following descriptions are intended to provide
hardware-level definitions. In some cases, specific lines will
have no firmware functionality implemented. Information for
each hardware-specific feature will be noted in the appropriate
section.
5.4.1 MODULE POWER (PINS 30, 31)
The Enfora Enabler III LPP module uses a single voltage source of VCC=+3.3V to
4.5V. (The exact values of the uplink currents are shown in the tables in section
5.3.1.)
VBAT
Main Battery Supply
Parameter/Conditions
Voltage In Regulation
Min
3.3
Typ
Max
4.5
Units
Vdc
Warning: The uplink burst will cause strong ripple on the voltage lines
and should be effectively filtered.
External capacitance is not typically required by low current or extended
life applications. However, if capacitance is added, then current leakage
of the capacitor needs to be taken into consideration for these types of
applications.
It should be noted that the input voltage level should not drop below the
minimum voltage rating under any circumstances, especially during the
uplink burst period.
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Enfora Enabler III LPP
5.4.2 ON/OFF SIGNAL (PIN 4)
The module may be set into a low power ‘off’ mode by pulling the pin low for a
minimum of 3 seconds. This will shut down any active functions including GPS and
GSM, and stop the MSP430 processor. This is the lowest power mode of the
module, it can be ideally used when storing or shipping units and the controller is
not to be enabled.
Once the module is in the ‘off’ state, it can be turned ‘on’ by holding the pin low for
a minimum of 3 seconds. This will start the MSP430 processor, once booted the
controller will be enabled and run as per the saved settings.
The module will normally start in the ‘on’ state and enable the controller logic when
power is applied.
5.4.3 ON/OFF STATUS (PIN 5)
When the On/Off pin is used to put the module into an ‘off’ state or to turn it ‘on’,
the status pin will indicate when it has successfully entered either state.
When turning off the unit, the status signal is set high after the On/Off signal is
sufficiently held low (3 seconds). The status signal is held high for 3 seconds but
can stay enabled if the system is waiting for the modem to shut down.
When turning on the unit, the on/off status signal will blink 12 times within a 3
second period if the battery voltage is in its highest range. If the battery is within its
normal voltage range, the on/off status signal will blink on for one second, off for
one second, then on for one second. The on/off status signal will then go off. When
the signal is off, the unit is activated.
5.4.4 GENERAL PURPOSE INPUT SIGNALS (PINS 10, 11)
Two signals are available for input signals which can be controlled via user
configuration of the modem software. The voltage level of the signal must be in
reference to the selected VIO voltage (Pin 33).
5.4.5 GENERAL PURPOSE OUTPUT SIGNALS (PINS 12, 13)
Two signals are available for output signals which can be controlled via user
configuration of the modem software. Commands are provided to change the state
of the output signals. The voltage level of the signal must be in reference to the
selected VIO voltage (Pin 33).
5.4.6 RESET SIGNAL (PIN 24)
The Reset signal is used to force the micro-controller to start at a known state.
When the Reset is pulled low the micro-controller will immediately suspend any
function and will not exit the reset state until the reset signal is released to be pulled
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Enfora Enabler III LPP
high. Once the transition from low to high is complete, the micro-controller will
boot. The Reset signal is falling edge triggered, so the reset function is set
immediately when the signal is pulled low.
When using Reset, it will immediately lose the connection to the GSM network, this
is not considered ideal. Typically during a normal shutdown, the module will issue a
detach request to the network to indicate that it is being removed.
Parameter
VIL
VIH
Reset
Pulse
Duration
Parameter/Conditions
Input Voltage – Low or float
Input Voltage – High
Vcc
2.2V
2.2V
MIN
Vss
0.8*Vcc
TYP
MAX
Vss+0.6
Vcc
UNIT
Vdc
Vdc
µS
5.4.7 USB (PINS 34, 35, 36)
Note: USB is used for software upgrades, modem configuration, and
Enfora debug. Use this interface for local connection upgrades.
Alternatively, FOTA can be used to upgrade the module software..
Pin Name
Pin Number
Signal Direction
Description
USB_VBUS
36
In
5 V tolerant power Supply VBUS line;
Used only as a USB sense, not for
powering
the
module.
(optional
connection)
TUSB_DP
oUSB_DM
35
Analog I/O
5 V tolerant data plus pin in USB
34
Analog I/O
5 V tolerant data minus pin in USB
USB
Input Voltage
Output voltage
Parameter/Conditions
High (Driven)
Low
Transceiver
D+/Leakage Current
Integration Guide
P a g e 25
Min
4.4
2.8
0.0
-2
Typ
4.65
3.3
0.1
Max
5.25
3.6
0.3
Units
Vdc
Vdc
μA
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Enfora Enabler III LPP
5.4.8 SERIAL INTERFACES
5.4.8.1 MAIN SERIAL INTERFACE (PINS 17, 18)
The pin naming for TX/RX is referenced as a DTE. The DTE device should match
their input pins to the Enfora outputs and vice-versa. Module is on 2.2 V logic
levels, so appropriate level translation needs to be accounted for.
9 way D Connector
Pin Number
Signal
N/A
Receive Data (RD)
Transmit Data (TD)
N/A
Signal Ground
N/A
N/A
N/A
N/A
Signal
Direction
Enfora Pin
Number
Enfora Module
Signal Direction
from DCE
from DTE
17
18
Output
Input
both
The key features of the UART in the Enabler III LPP module mode are as follows:
•
•
•
•
•
•
•
16C550 compatibility
Baud rate 115200 Kbits/s
Data format:
Data bit: 8 bits
Parity bit: none
Stop bit: 1bit
Flow Control: None
5.4.8.2 GPS SERIAL INTERFACE (PIN 19)
It is optional as to whether something should be connected to the RS232 GPS
DEBUG OUT. If streaming NMEA messages are needed for external processing,
above and beyond the NMEA sent to the server, then a serial cable can be
connected between this serial connector and a PC. The baud rate is fixed at
57600.
9 way D Connector
Pin Number
Integration Guide
Signal
Enfora
Number
N/A
Receive Data (RD)
N/A
N/A
Signal Ground
N/A
N/A
N/A
N/A
19
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Pin
Enfora Module Signal
Direction
Output
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Enfora Enabler III LPP
The key features of the UART in the Enabler III LPP module mode are as follows:
•
•
Baud rate 57600 Kbits/s
Data format:



Data bit: 8 bits
Parity bit: none
Stop bit: 1bit
5.4.9 HANDSET MICROPHONE INPUT (PINS 37, 38)
The handset differential inputs MICIP and MICIN can be amplified by the differential
handset microphone amplifier. This amplifier has a gain of 25.6 dB.
Handset Mic Input
Parameter/Conditions
Maximum Input Range –
Mic(+) to Mic(-)
Inputs 3 dBm0 (Max. digital
sample amplitude when PGA
gain set to 0 dB)
Nominal Ref. Level –
Mic(+) to Mic(-)
Differential MIC
-10
dBm0
Differential
Resistance –
Differential MIC, MICAMP gain =
25.6 dB
36
kΩ
25.6
dB
Input
Mic(+) to Mic(-)
Microphone
Amplifier Gain
Min
Typ
Max
Units
32.5
mVRMS
(INMODE = 0001)
Pre-
Differential MIC
5.4.10 HANDSET SPEAKER OUTPUT (PINS 39, 40)
Pin Name
Pin Number
Signal Direction
Description
EARP
39
Earphone positive output
EARN
40
Earphone negative output
The earphone amplifier provides a full differential signal on the terminals EARP and
EARN (Earphone).
Handset Spkr Output
Parameter/Conditions
Maximum
Resistive Load
Output Swing 3.9 VPP
120
Ω
Output Swing 1.5 VPP
33
Ω
Differential
Typ
Max
100
Maximum
Differential
Capacitive Load
Integration Guide
Min
P a g e 27
Units
pF
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Enfora Enabler III LPP
Common Mode Minimum
Resistive Load
At Internal Speaker (+) or (-)
200
Common Mode Maximum
Capacitive Load
At Internal Speaker (+) or (-)
Amplifier Gain
EARG = 1
EARG = 0
-11
50
Parameter
Test Conditions
Earphone
output
swing at EARP-EARN
Distortion ≤ 2% and 120 Ω, VSP input
level = +3 dBm0, amp gain = -11 dB
0.98
Distortion ≤ 2% and 33 Ω, VSP input
level = -5.34 dBm0, amp gain = -11
dB
0.38
Distortion ≤ 2% and 120 Ω, I2S input
level = +3 dBm0, amp gain = -11 dB
0.93
Earphone
amplifier
power supply rejection
Min
Typ
Distortion ≤ 2% and 120 Ω, VSP input
level = +3 dBm0, amp gain = 1 dB
3.1
3.92
Distortion ≤ 2% and 33 Ω, VSP input
level = -5.34 dBm0, amp gain = 1 dB
1.2
1.5
Distortion ≤ 2% and 120 Ω, I2S input
level = +3 dBm0, amp gain = 1 dB
2.96
3.7
Earphone
amplifier
state in power down
kΩ
pF
DB
dB
Max
Units
VP-P
High
1 kHz, 100 mVp-p
50
dB
An external audio amplifier should be used for loads of less than 16 Ω or if volume
is inadequate.
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Enfora Enabler III LPP
5.5 SUBSCRIBER IDENTITY MODULE (SIM) (PINS 42, 43,
44, 45, 46)
The SIM, an integral part of any GSM terminal device, is a “smart card” that is
programmed with subscriber information:
•
The user information consists of an International Mobile Subscriber Identity
(IMSI) number, which is registered with the GSM provider, and an encryption Ki
(pronounced "key"). This information consists of a MSP430 processor and
memory installed on a plastic card.
Note: The SIM is not provided with the Enfora Enabler III LPP module.
The SIM must be obtained from the GSM service provider and must
be provisioned by the operator for data and/or voice. Always take
care to protect the SIM: the GSM terminal will not operate without the
SIM installed.
The SIM provides the IMSI for authentication. To gain access to the GSM network,
the network must recognize the IMSI number, and the terminal must be able to
properly decrypt the data sent by the network. The SIM also serves as a buffer for
SMS messages, storing the message for transmission until a radio link is available
and buffering received messages until retrieved.
5.5.1
USING A REMOTE SIM WITH THE ENFORA ENABLER III LPP MODULE
(PINS 42, 43, 44, 45, 46)
The Enabler III LPP module does not include an on-board SIM carrier.
The module supports the use of 1.8 V and 3 V SIM cards. The module includes a
hardware interface module dedicated to Universal Subscriber Identity Module
(USIM). All baud-rates defined in ISO 7816-3 standard are supported for highspeed transmission.
•
•
•
•
The integrator must provide a suitable SIM connector.
The maximum distance from the module to the remote SIM connector must not
exceed 25.4 cm (10 inches).
It is recommended to have Zero resistance between the SIM connector and the
module.
External ESD Protection is Required


Integration Guide
15 kV Air Discharge
kV Contact Discharge
P a g e 29
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Enfora Enabler III LPP
The transorb must have a low junction capacitance (typically < 10 pf) such as the
following part:
Example:
Manufacturer: On Semi
Manufacturer PN: NSQA6V8AW5T2G
Figure 7 - Remote SIM Interface
Pin Name
Pin Number
Signal Direction
Description
SIM_VDD
45
SIM VDD
SIM_CLK
43
Card Reference Clock
SIM_RST
42
Card Reset
SIM_I/O
44
I/O
Card I/O Data
SIMDTC
46
Card Detect
The module provides the regulated supply voltage for the SIM-card and the circuitry
to detect the insertion or extraction of the SIM-Card in or from the mobile.
The SIMDTC is disabled by default (see AT$SIMDTC in the AT Command Manual
for settings). When enabled, the SIMDTC pin has an internal pull up to Vcc and can
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Enfora Enabler III LPP
be configured to detect a SIM insertion when the SIMDTC is either pulled to ground
or left floating.
It can configured to detect either just a SIM removal or both removal and insertion.
When the module detects a SIM removal, it will de-register from the network.
When the module is configured to and detects a SIM insertion, it will reset the
module and re-register on the network.
The SIM-card presence detection logic is active when the GSM modem is on and is
checked each time the GSM modem is powered up.
USIM
Parameter/Conditions
Min
Typ
Max
Units
VDD
SIM VDD voltage 1.8V
1.64
1.8
1.96
3.3V
2.7
2.85
2.95
VIH
High level input voltage
1.15
VIL
Low level input voltage
VOH
High level output voltage, IO = 4 mA
VOL
Low level output voltage, IO = 1 mA
0.4
II
Input leakage current
±1
μA
Iout
Output current
mA
PU
PU resistance
32
kΩ
PD
PD resistance
30
kΩ
Iz
Leakage current
Card Detect
0.61
Vdd0.45
± 30
μA
Debouncing time (SIM-card insertion)
0.5
mS
Debouncing time (SIM-card extraction)
15
mS
Pull-up resistor (resistor + resistive
switch)
475
kΩ
5.5.1.1 REMOTE SIM COMPONENT INFORMATION
Any compatible SIM carrier can be used in conjunction with the Enabler III LPP
module.
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Enfora Enabler III LPP
5.6 ANTENNA
The LPP0208 module has two RF antenna connections. One connection is for the
GSM section of the module and the other for GPS. Please be sure to follow proper
RF design practices when designing the antennas.
5.6.1 GSM
A GSM antenna should be designed from proper RF design practices.
5.6.2 GPS
The GPS_ANT is the RF connection from the GPS antenna; no external LNA is
required. The LPP0208 can support both passive and active GPS antenna.
However, external power supply and circuitry is required for an active GPS antenna.
See Figure 12 - GPS Antenna Sample Schematic
Figure 8 - GPS Antenna Sample Schematic
Active antenna is enabled by placing a jumper on J403 in the sample schematic
between pins 1 and 2.
Passive antenna is enabled by placing a jumper on J403 in the sample schematic
between pins 2 and 3.
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Enfora Enabler III LPP
6 GPS Performance
Specification
Parameter/Conditions
Typ
Units
Accuracy
-130 dBm, Autonomous CEP (50%)
<2
-140 dBm, Autonomous CEP (50%)
<2
-150 dBm, Autonomous CEP (50%)
<3
-155 dBm, Autonomous CEP (50%)
<11
-130 dBm, Autonomous CEP (95%)
<3
-140 dBm, Autonomous CEP (95%)
<3
-150 dBm, Autonomous CEP (95%)
<8
-155 dBm, Autonomous CEP (95%)
<30
Cold Start TTFF
<40
Sec
Tracking
- 160
dBm
Reacquisition
-155
dBm
Cold Start
-145
dBm
Acquisition Times
-130 dBm, 25 °C
Sensitivity
CEP (50%):
The radius of a horizontal circle centered at the antenna’s true
position that contains 50% of the fixes.
CEP (95%):
The radius of a horizontal circle centered at the antenna’s true
position that contains 95% of the fixes.
TTFF (Time To First Fix The number of seconds to provide a position fix (latitude &
(seconds)):
longitude).
Cold Start:
The GPS receiver does not have valid almanac or time data.
Reacquisition:
The GPS receiver has valid ephemeris, almanac and time data.
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7 GSM/GPRS Modes of Operation
GSM/GPRS supports many optional services and modes. The Enfora Enabler III
LPP module supports the following GSM/GPRS services:
•
•
•
Short-Message Services (SMS)
Class B GPRS Functionality
Voice communication
7.1 ENABLING THE TRANSMISSION MODES FOR THE
GSM/GPRS SERVICES
Each of the GSM/GPRS services has two modes that can be enabled separately:
•
•
Mobile-originated (MO): allows the making of a service request (such as, making
a telephone call or sending an SMS)
Mobile-terminated (MT): allows receiving a service request (such as receiving a
telephone call or an SMS)
Note: Contact your local GSM operator to ensure that the services and
modes have been provisioned for the SIM.
7.2 VOICE COMMUNICATION
The Enfora Enabler III LPP module has voice capabilities, provided the necessary
connections have been made for the speaker and microphone pins. The Enfora
Enabler-LPP G AT Command Set Reference – LPP0208AT001 has the entire list of
commands that can be used to control the voice functionality.
The Enfora Enabler III LPP module supports four vocoder compression algorithms
for voice communication: Full-Rate (FR), Enhanced Full-Rate (EFR), Half-rate (HR)
and Adaptive Multi-rate (AMR).
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7.3 SMS: SHORT MESSAGE SERVICES
Short Message Services (SMS) is a feature-rich GSM service. The Enfora Enabler III
LPP module can perform the following tasks:
•
•
•
•
•
•
•
Sending and receiving binary messages of up to 160 characters (7-bit
characters)
Sending and receiving text messages of up to 140 bytes (8-bit data)
Submitting a SMS Protocol Data Unit (PDU) to a SMSC (Short Message Service
Center) and storing a copy of the PDU until either a report arrives from the
network or a timer expires
Receiving a SMS PDU from a SMSC
Returning a delivery report to the network for a previously received message
Receiving a report from the network
Notifying the network when the module has sufficient memory capacity available
to receive one or more SMS messages (after the module had previously rejected
a message because its memory capacity was exceeded)
7.4 SIM OPERATION
7.4.1 PROVISIONING THE SIM
The SIM can support optional features or services. Most operators typically
configure the SIM to send/receive voice calls and to receive SMS; however, some
may require an additional tariff to enable the SIM to send SMS. The transmission of
circuit switched and GPRS data are also additional services that may be required to
allow the service:
•
•
•
Mobile-originated (MO): allows making a service request (such as, making a call
or sending an SMS)
Mobile-terminated (MT): allows receiving a service request (such as, receiving a
phone call or an SMS)
The GSM SIM can have multiple telephone numbers.
It is imperative for the Enfora Enabler III LPP module that the SIM be configured for
the optional services that are required for the application.
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7.5 GPRS SERVICES SUPPORTED BY THE ENFORA
ENABLER III LPP MODULE
The Enfora Enabler III LPP module supports the following GPRS (modes of
operation) that must be enabled by the operator:
•
•
•
•
•
GPRS Packet Connectivity (MO and MT) with Both Dynamic and Static IP
option
GPRS SMS (MO and MT): uses the IP (Dynamic or Static) set by the operator
Multiple APN Setting
Quality of Service Options
Up to Multi-slot 10 Class of Service
7.6 SELECTING THE GSM MODES OF OPERATION
When provisioning the SIM for the Enfora Enabler III LPP module, enable the
following modes of operation:
•
•
Voice calls: configure the SIM for both MO and MT service (to send and receive)
SMS: configure the SIM either for MT alone (to receive) or for both MO and MT
(to send and receive)
Voice
SMS
GPRS
Function
MO/MT
MT
Voice calls, receive SMS
MO/MT
MO/MT
Voice calls, receive / send SMS
MO/MT
MO/MT
Voice calls, receive / send SMS
7.7 POWER MANAGEMENT
TBD
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8 Software Interface
The application sends commands to the Enfora Enabler III LPP module via the 52pin I/O signal connector. These commands use the Enabler III LPP Menu System,
Enfora AT Command Set and/or Enfora GSM-GPRS Family API.
The Enfora Enabler III LPP module operates in one of the following modes:
•
•
•
Command Menu mode: Used for configuring the Enfora Enabler III LPP
module. It uses menu based commands via the serial port for communication.
See LPP0208PR001 - Enfora Enabler III LPP Programming Reference for more
details on specific commands.
Modem Pass-Thru mode: Used to communicate directly with the modem. It
uses the AT command set via the serial port for communication. Entry to this
mode is available via a menu mode command.
AT Command via USB: The USB port may be used to send AT commands
directly to the GSM modem. This method should be used for configuration
purposes, not normal usage. The GSM modem remains powered on as long as
the USB port is connected.
8.1 FORMAT FOR THE AT COMMANDS
The general format of the command line is:   

AT

See AT Command Manual

0X0D
The prefix AT obtains synchronization, identifies the character parameters, and
indicates that a command may be in the following characters.
AT commands are not case sensitive; use either capital letters or lower-case letters
for the AT command.
Note: Some AT Command parameter values ARE case
sensitive and are documented in the Enfora Enabler-LPP G AT
Command Set Reference - LPP0208AT001.
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8.2 ENFORA AT COMMAND SET
For a full description of the AT commands, refer to the Enfora Enabler-LPP G AT
Command Set Reference – LPP0208AT001.
Note: A command description that includes an *asterisk
denotes that the GSM service provider must enable
supplementary services functionality before the command is
available.
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Enfora Enabler III LPP
9 APPENDIX A - LIMITED WARRANTY
LIMITED WARRANTY
[Revised: 4/2/2010]
SCOPE
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.
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.
HARDWARE AND SOFTWARE
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
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Enfora Enabler III LPP
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
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.
EXCEPTIONS AND DISCLAIMERS
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.
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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 NONINFRINGEMENT, 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.
OTHER CONSIDERATIONS
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.
GOVERNING LAW
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.
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10 APPENDIX B - Regulatory Compliance
This section summarizes the responsibilities and actions required of manufacturers
and integrators who incorporate OEM versions of the Enfora Enabler IIILPP module
into their products. In certain situations and applications, these products will
require additional FCC, CE, GCF, PTCRB or other regulatory approvals prior to sale
or operation. Appropriate instructions, documentation and labels are required for all
products. For more information concerning regulatory requirements, please
contact Enfora.
10.1 GCF/PTCRB APPROVAL (FORMERLY FTA)
The Enfora Enabler IIILPP module is type approved in accordance with the
requirements of and through the procedures set forth by the GSM industry
association. The relevant conformance specification is 3GPP TS 51010-1. Any
OEM changes in the SIM interface, antenna port, software or the physical makeup
of the unit may require an incremental FTA to ensure continued compliance with the
above-mentioned standard. For more information concerning type approval, please
contact Enfora.
10.2 FCC CERTIFICATION
Enfora certifies that the Enfora Enabler IIILPP 850/900/1800/1900 MHz GSM Radio
Module (FCC ID: MIVLPP0208) complies with the RF requirements applicable to
broadband PCS equipment operating under the authority of 47 CFR Part 24,
Subpart E and Part 22 of the FCC Rules and Regulations. This certification is
contingent upon installation, operation and use of the Enfora Enabler IIIG module
and its host product in accordance with all instructions provided to both the OEM
and end user. When installed and operated in a manner consistent with the
instructions provided, the Enfora Enabler IIILPP module meets the maximum
permissible exposure (MPE) limits for general population / uncontrolled exposure at
defined in Section 1.1310 of the FCC Rules and Regulations.
The Enabler IIILPP modem is designed for use in a variety of host units, "enabling"
the host platform to perform wireless data communications. However, there are
certain criteria relative to integrating the modem into a host platform such as a PC,
laptop, handheld, monitor and control unit, etc. that must be considered to ensure
continued compliance with FCC compliance requirements.
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In order to use the Enabler IIILPP module without any additional FCC certification
the installation must meet the following conditions:
•
•
•
The system antenna(s) connected to the Enabler IIILPP module must be
installed to provide at least 20cm separation from the human body
during normal operation.
The system antennas must not be co-located with any other transmitter
or antenna.
The system antenna(s) used with the Enabler IIILPP module must not
exceed the following levels:
•
GSM850 mode: the maximum gain is 1.4 dBi.
•
GSM1900 mode: the maximum gain is 3 dBi.
If any of these conditions are not met then additional information should be sought
from the FCC or an FCC qualified test laboratory.
The system user manuals and other documentation must also include appropriate
caution and warning statements and information.
10.2.1 FCC NOTICE TO USERS
Enfora has not approved any changes or modifications to this device by the user. Any
changes or modifications could void the users authority to operate the device. See 47
CFR Sec. 15.21. The 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. See 47 CFR Sec. 15.19.
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:
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Enfora Enabler III LPP
•
•
•
•
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.
If the FCCID of the module is not visible when installed in the host platform, then a
permanently attached or marked label must be displayed on the host unit referring
to the module.
The label should contain wording such as:
Contains FCC ID: MIVGSM0308
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.
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10.3 CE MARKING - R&TTE DIRECTIVE
The Enabler IIILPP module have been tested and certified to comply with the
requirements of the European Directive 1999/5/EC, the R&TTE Directive. The modules
are certified directly against Article 3.2 of the directive for Radio transceiver aspect. The
modules are not directly certified against Article 3.1a (Safety) and 3.1b (EMC), but are
shown to be in compliance through testing on a typical integrated device utilizing the
module. The module is marked with the CE marked and the notified body number of
the reviewing organization as is shown below.
It is the responsibility of the integrator to ensure that the device incorporating the
Enabler IIILPP module is in compliance with the requirements of Article 3.1a (Safety)
and 3.1b (EMC), as well as ensuring that the integrated device remains in compliance
with the requirements of Article 3.2 of the directive.
10.4 REGULATORY REQUIREMENTS FOR OTHER
COUNTRIES
In most other countries there are similar rules and regulations that may need to be met
for importing the Enfora Enabler IIILPP module and for placing it on the market in the
integrated device. Each country may require a different mark of approval as an
acceptance requirement. For each of these cases the country should identified, and
the appropriate steps should be taken to meet the requirements set forth in the
intended market.
10.5 ROHS COMPLIANCE
As a part of Enfora’s corporate policy of environmental protection, Enfora takes every step to
ensure that the Enabler IIILPP modules are designed and manufactured to comply to the
European Union Directive 2002/95/EC for the Restriction of Hazardous Substances (RoHS).
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11 APPENDIX C - Glossary and Acronyms
API
Application Programming Interface.
App Application
Refers to the Application which sends or receives
commands/responses from the Enfora Enabler III LPP Module
AT Command Set
Commands issued by intelligent device to a modem to perform
functions, such as to initiate call, to answer call, or to transmit data.
BER
Bit Error Rate
Bit Error Rate
CMUX
Multiplexer protocol that operates between an MS and a TE and
allows a number of simultaneous sessions over a normal serial
asynchronous interface
CPE
A terminal in fixed location on the customer’s premises.
Customer
Equipment
Premise
CSD
Circuit Switched Data
Data link from a terminal through the network allowing real-time,
duplex connectivity at 9600 bytes/second.
dBi
Decibels referenced to an isotropic radiator
DCE
Data Communications Equipment
Data Communications
Equipment
DCS
Digital Cellular System
DTE
A collection of services and capabilities providing flexibility of access
and mobility through a combination of wireless and wire-line
networks, utilizing the 1800 MHz bandwidth.
Data Terminal Equipment
Data Terminal Equipment
EFR
Enhanced Full Rate
EIR
Equipment Identity Register
EIRP
Equivalent Isotropic Radiated
Voice (vocoder) compression algorithms which offer the highest
quality voice communication.
A database used to store International Mobile Equipment Identity
(IMEI) of a locally issued terminal.
In a given direction, the gain of a transmitting antenna multiplied by
the net power accepted by the antenna from the connected
transmitter.
Power
EMC
Electromagnetic Compatibility
Integration Guide
The ability of a device to function satisfactorily in its electromagnetic
environment without inducing intolerable disturbance to that
environment (or to other devices)
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Enfora Enabler III LPP
API
Application Programming Interface.
ESD
Static electricity that can damage electronic equipment.
Electrostatic Discharge
EU
An organization of 15 European states whose purpose is to organize
relations between the Member States and between their peoples.
European Union
FTA
GSM Full Type Approval
Full Type Approval
GPRS
General Packet Radio Service
GSM
Global System for Mobile
Communications
Standard for packet communications utilizing Global Standard for
Mobility (GSM) infrastructure.
Standard for digital communications.
Allows consistent
communications in various parts of the world despite variations in RF
spectrum allocations. Transferring the SIM (see below) permits
users to roam by changing terminal equipment.
GPS
Global Positioning System
HLR
Stores the identity and user data for all subscribers belonging to the
area of the related MSC.
Home Location Register
IMEI
International
Equipment Identity
Mobile
IMSI
International
Mobile
Subscriber Identification
A unique number for each GSM Terminal tracked by the GSM
operators in their Equipment Identity Register (EIR) database.
A unique number identifying the subscriber stored in the SIM card.
Number is used in conjunction with the network for call routing.
Ki
A secret code used in authentication and encryption by the terminal.
MO
Any GSM/GPRS service originated at the mobile terminal.
Mobile Originated
MT
Mobile Terminated
MSC
Mobile Switching Center
Any GSM/GPRS service originated from or routed through the
network and sent to the mobile terminal.
The central switch of the GSM network. Performs call routing,
collects call detail records for billing, and supervises system
operations.
Non-Transparent Mode
Delivers a constantly low error rate but with a non-guaranteed
throughput or delay. The Non-Transparent service provides a
performance that is closest to using a modem over a fixed PSTN
line.
NRTL
OSHA-approved Nationally Recognized Testing Laboratory
Nationally Recognized Test
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API
Application Programming Interface.
Laboratory
OEM
Original Equipment Manufacturer.
PA
Power Amplifier.
Packet
A collection of data transmitted over a digital network in a burst.
PCS
Personal Communication Services.
PDA
Personal Digital Assistant.
PDU
Packet Data Unit.
PPP
Point-To-Point Protocol.
SIM
Subscriber Identity Module.
SMS
Short Message Service.
SMSC
Short Message Service Center.
SUPL
Secure User Plane Location
TCP
Transfer Control Protocol
UDP
User Datagram Protocol.
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Enfora Enabler III LPP
12 APPENDIX E - Contacting Enfora
For technical support and customer service dealing with the modem itself, contact
the company where you purchased the product. If you purchased the product
directly from Enfora, visit the SUPPORT page on the Enfora website:
http://www.enfora.com/support_newissue.asp
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