Sierra Wireless Q2687 GSM/GPRS/EDGE/AMR Module User Manual

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Date Submitted	2010-04-22 00:00:00
Date Available	2010-10-20 00:00:00
Creation Date	2010-04-20 09:32:57
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Document Lastmod	2010-04-22 17:55:42
Document Title	AirPrime Q2687 Refreshed Product Technical Specification and Customer Design Guideline
Document Creator	Microsoft® Office Word 2007
Document Author:	Sierra Wireless

Product Technical Specification
and Customer Design Guideline
AirPrime Q2687 Refreshed
WA_DEV_Q26RD_PTS_001
002
April 20, 2010
Product Technical Specification and
Customer Design Guideline
Important Notice
Due to the nature of wireless communications, transmission and reception of data can never be
guaranteed. Data may be delayed, corrupted (i.e., have errors) or be totally lost. Although significant
delays or losses of data are rare when wireless devices such as the Sierra Wireless modem are used
in a normal manner with a well-constructed network, the Sierra Wireless modem should not be used
in situations where failure to transmit or receive data could result in damage of any kind to the user or
any other party, including but not limited to personal injury, death, or loss of property. Sierra Wireless
accepts no responsibility for damages of any kind resulting from delays or errors in data transmitted or
received using the Sierra Wireless modem, or for failure of the Sierra Wireless modem to transmit or
receive such data.
Safety and Hazards
Do not operate the Sierra Wireless modem in areas where blasting is in progress, where explosive
atmospheres may be present, near medical equipment, near life support equipment, or any equipment
which may be susceptible to any form of radio interference. In such areas, the Sierra Wireless modem
MUST BE POWERED OFF. The Sierra Wireless modem can transmit signals that could interfere with
this equipment. Do not operate the Sierra Wireless modem in any aircraft, whether the aircraft is on
the ground or in flight. In aircraft, the Sierra Wireless modem MUST BE POWERED OFF. When
operating, the Sierra Wireless modem can transmit signals that could interfere with various onboard
systems.
Note:
Some airlines may permit the use of cellular phones while the aircraft is on the ground and the door is
open. Sierra Wireless modems may be used at this time.
The driver or operator of any vehicle should not operate the Sierra Wireless modem while in control of
a vehicle. Doing so will detract from the driver or operator’s control and operation of that vehicle. In
some states and provinces, operating such communications devices while in control of a vehicle is an
offence.
Limitations of Liability
This manual is provided “as is”. Sierra Wireless makes no warranties of any kind, either expressed or
implied, including any implied warranties of merchantability, fitness for a particular purpose, or
noninfringement. The recipient of the manual shall endorse all risks arising from its use.
The information in this manual is subject to change without notice and does not represent a
commitment on the part of Sierra Wireless. SIERRA WIRELESS AND ITS AFFILIATES
SPECIFICALLY DISCLAIM LIABILITY FOR ANY AND ALL DIRECT, INDIRECT, SPECIAL,
GENERAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR EXEMPLARY DAMAGES INCLUDING,
BUT NOT LIMITED TO, LOSS OF PROFITS OR REVENUE OR ANTICIPATED PROFITS OR
REVENUE ARISING OUT OF THE USE OR INABILITY TO USE ANY SIERRA WIRELESS
PRODUCT, EVEN IF SIERRA WIRELESS AND/OR ITS AFFILIATES HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES OR THEY ARE FORESEEABLE OR FOR CLAIMS BY ANY
THIRD PARTY.
Notwithstanding the foregoing, in no event shall Sierra Wireless and/or its affiliates aggregate liability
arising under or in connection with the Sierra Wireless product, regardless of the number of events,
occurrences, or claims giving rise to liability, be in excess of the price paid by the purchaser for the
Sierra Wireless product.
WA_DEV_Q26RD_PTS_001
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Product Technical Specification and
Customer Design Guideline
Patents
Portions of this product may be covered by some or all of the following US patents:
5,515,013
6,191,741
6,653,979
6,968,171
7,287,162
5,629,960
6,199,168
6,697,030
6,985,757
D442,170
5,845,216
6,339,405
6,785,830
7,023,878
D459,303
5,847,553
6,359,591
6,845,249
7,053,843
D599,256
5,878,234
6,400,336
6,847,830
7,106,569
D560,911
5,890,057
6,516,204
6,876,697
7,145,267
5,929,815
6,561,851
6,879,585
7,200,512
6,169,884
6,643,501
6,886,049
7,295,171
and other patents pending.
This product includes technology licensed from QUALCOMM® 3G
Manufactured or sold by Sierra Wireless or its licensees under one or more patents licensed from
InterDigital Group.
Copyright
© 2010 Sierra Wireless. All rights reserved.
Trademarks
AirCard® and Watcher® are registered trademarks of Sierra Wireless. Sierra Wireless™, AirPrime™,
AirLink™, AirVantage™ and the Sierra Wireless logo are trademarks of Sierra Wireless.
, ®, inSIM®, WAVECOM®, WISMO®, Wireless Microprocessor®,
Wireless CPU , Open AT are filed or registered trademarks of Sierra Wireless S.A. in France and/or
in other countries.
®
®
Windows® and Windows Vista® are registered trademarks of Microsoft Corporation.
Macintosh and Mac OS are registered trademarks of Apple Inc., registered in the U.S. and other
countries.
QUALCOMM® is a registered trademark of QUALCOMM Incorporated. Used under license.
Other trademarks are the property of the respective owners.
Contact Information
Sales Desk:
Post:
Fax:
Web:
Phone:
1-604-232-1488
Hours:
8:00 AM to 5:00 PM Pacific Time
E-mail:
sales@sierrawireless.com
Sierra Wireless
13811 Wireless Way
Richmond, BC
Canada
V6V 3A4
1-604-231-1109
www.sierrawireless.com
Consult our website for up-to-date product descriptions, documentation, application notes, firmware
upgrades, troubleshooting tips, and press releases: www.sierrawireless.com
WA_DEV_Q26RD_PTS_001
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Product Technical Specification and
Customer Design Guideline
Document History
Version
Date
Updates
001
January 28, 2010
Creation
Reformatted in the rebranded SWI template.
In Section 3 Technical Specifications:

Moved the Power Supply Design Requirements to section 9.1
Power Supply

Updated Figure 5
In section 4 Interfaces:

Updated section 4.7.4 5-wire Serial Interface

Updated section 4.8.1 Pin Description

Updated section 4.8.3 4-wire Serial Interface
Updated section 8.4 Reliability Prediction Model.
Updated links in section 13.1.1 Web Site Support.
002
April 20, 2010
Updated Intelligent Embedded Module weight to 8g.
Updated the RF Component list.
Removed references to IMP Connector throughout the document.
Updated Figure 10 Example of a 4-wire SPI Bus Application.
Updated section 4.15 Temperature Sensor Interface.
Updated Power ON information based on Tracker 01626.
Updated U1 Chip information based on CUS57225.
Updated antenna gain information.
Updated FCC ID.
Updated power consumption values in section 6 Power Consumption.
Updated Figure 5 Q2687 Refreshed Embedded Module Mechanical Drawing
and Figure 6 Maximum Bulk Occupied on the Host Board.
WA_DEV_Q26RD_PTS_001
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Contents
1. INTRODUCTION ................................................................................................ 16
1.1.
Physical Dimensions ................................................................................................... 16
1.2.
General Features........................................................................................................ 16
1.3.
GSM/GPRS/EGPRS Features .................................................................................... 18
1.4.
Interfaces ................................................................................................................... 18
1.5.
Operating System ....................................................................................................... 18
1.6.
Connection Interfaces ................................................................................................. 19
1.7.
Environment and Mechanics ....................................................................................... 19
1.7.1.
RoHS Directive Compliant ................................................................................... 19
1.7.2.
Disposing of the Product ...................................................................................... 19
2. FUNCTIONAL SPECIFICATIONS ...................................................................... 20
2.1.
Functional Architecture ............................................................................................... 20
2.1.1.
RF Functionalities ................................................................................................ 20
2.1.2.
Baseband Functionalities ..................................................................................... 21
2.2.
Operating System ....................................................................................................... 21
3. TECHNICAL SPECIFICATIONS ........................................................................ 22
3.1.
Power Supply ............................................................................................................. 22
3.1.1.
Power Supply Pin-Out.......................................................................................... 23
3.1.2.
Start-Up Current .................................................................................................. 24
3.1.3.
Decoupling of Power Supply Signals .................................................................... 24
3.2.
Mechanical Specifications ........................................................................................... 24
3.3.
Firmware Upgrade ...................................................................................................... 27
4. INTERFACES ..................................................................................................... 28
4.1.
General Purpose Connector (GPC) ............................................................................. 28
4.1.1.
Pin Description .................................................................................................... 29
4.1.2.
Pin Out Differences .............................................................................................. 34
4.2.
Electrical Information for Digital I/O ............................................................................. 35
4.3.
General Purpose Input/Output .................................................................................... 37
4.3.1.
Pin Description .................................................................................................... 37
4.4.
Serial Interface ........................................................................................................... 39
4.4.1.
SPI Bus ............................................................................................................... 39
4.4.1.1.
4.4.1.2.
4.4.1.3.
4.4.1.4.
4.4.1.5.
4.4.1.6.
4.4.2.
I2C Bus ................................................................................................................ 43
4.4.2.1.
4.4.2.2.
4.4.2.3.
4.5.
Characteristics ........................................................................................................ 39
SPI Configuration .................................................................................................... 39
SPI Waveforms ....................................................................................................... 40
SPI1 Pin Description ................................................................................................ 41
SPI2 Pin Description ................................................................................................ 41
Application .............................................................................................................. 42
I C Waveforms ........................................................................................................ 43
I2C Pin Description .................................................................................................. 44
Application .............................................................................................................. 44
Parallel Interface......................................................................................................... 45
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4.5.1.
4.5.2.
4.5.3.
4.5.4.
4.5.5.
4.5.6.
Pin Description .................................................................................................... 45
Electrical Characteristics ...................................................................................... 46
Asynchronous Access.......................................................................................... 46
Synchronous Access ........................................................................................... 48
Additional Information Regarding Address Size Bus ............................................. 51
Application ........................................................................................................... 51
4.6.
Keyboard Interface ..................................................................................................... 52
4.6.1.
Pin Description .................................................................................................... 52
4.6.2.
Application ........................................................................................................... 53
4.7.
Main Serial Link (UART1) ........................................................................................... 54
4.7.1.
Pin Description .................................................................................................... 54
4.7.2.
Level Shifter Implementation ................................................................................ 55
4.7.2.1.
4.7.3.
4.7.4.
4.7.5.
4.7.6.
4.8.
Auxiliary Serial Link (UART2) ...................................................................................... 58
4.8.1.
Pin Description .................................................................................................... 58
4.8.2.
Level Shifter Implementation ................................................................................ 59
4.8.2.1.
4.8.3.
4.8.4.
4.9.
Recommended Components.................................................................................... 55
V24/CMOS Possible Designs ............................................................................... 56
5-wire Serial Interface .......................................................................................... 57
4-wire Serial Interface .......................................................................................... 57
2-wire Serial Interface .......................................................................................... 57
Recommended Components.................................................................................... 59
4-wire Serial Interface .......................................................................................... 60
2-wire Serial Interface .......................................................................................... 60
SIM Interface .............................................................................................................. 61
4.9.1.
Pin Description .................................................................................................... 61
4.9.2.
Electrical Characteristics ...................................................................................... 61
4.9.3.
Application ........................................................................................................... 62
4.9.3.1.
4.9.3.2.
SIM Socket Pin Description ...................................................................................... 62
Recommended Components.................................................................................... 63
4.10.
USB 2.0 Interface ....................................................................................................... 64
4.10.1. Pin Description .................................................................................................... 64
4.10.2. Electrical Characteristics ...................................................................................... 64
4.10.3. Application ........................................................................................................... 65
4.10.3.1.
Recommended Components .................................................................................. 65
4.11.
RF Interface................................................................................................................ 66
4.11.1. RF Connections ................................................................................................... 66
4.11.1.1.
4.11.1.2.
4.11.1.3.
4.11.2.
4.11.3.
UFL Connector ...................................................................................................... 66
Soldered Solution .................................................................................................. 66
Precidip Connector ................................................................................................ 66
RF Performance .................................................................................................. 66
Antenna Specifications ........................................................................................ 67
4.11.3.1.
Application ............................................................................................................ 67
4.12.
Analog Audio Interface................................................................................................ 68
4.12.1. Pin Description .................................................................................................... 68
4.12.2. Microphone Features ........................................................................................... 68
4.12.2.1.
4.12.2.2.
4.12.3.
MIC1 Microphone Input.......................................................................................... 68
MIC2 Microphone Input.......................................................................................... 72
Speaker Features ................................................................................................ 75
4.12.3.1.
4.12.3.2.
Speakers Output Power ......................................................................................... 76
SPK1 Speaker Output............................................................................................ 76
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4.12.3.3.
4.12.3.4.
4.12.3.5.
4.12.3.6.
SPK2 Speaker Output............................................................................................ 77
Differential Connection Example ............................................................................ 78
Single-Ended Connection Example ........................................................................ 78
Recommended Characteristics .............................................................................. 79
4.13.
Digital Audio Interface (PCM) ...................................................................................... 80
4.13.1. PCM Waveforms.................................................................................................. 81
4.13.2. Pin Description .................................................................................................... 82
4.14.
Battery Charging Interface .......................................................................................... 83
4.14.1. Charging Algorithms ............................................................................................ 84
4.14.1.1.
4.14.1.2.
Ni-Cd/Ni-Mh Charging Algorithm ............................................................................ 84
Li-Ion Charging Algorithm ...................................................................................... 85
4.14.2.
4.14.3.
4.14.4.
4.14.5.
Pre-Charging ....................................................................................................... 88
Temperature Monitoring ....................................................................................... 88
Recharging .......................................................................................................... 88
Application ........................................................................................................... 89
4.14.6.
Charger Recommendations ................................................................................. 90
4.14.5.1.
4.15.
Temperature Computation Method ......................................................................... 89
Temperature Sensor Interface .................................................................................... 91
5. SIGNALS AND INDICATORS ............................................................................ 92
5.1.
ON/~OFF Signal ......................................................................................................... 92
5.1.1.
Pin Description .................................................................................................... 92
5.1.2.
Electrical Characteristics ...................................................................................... 92
5.1.3.
Power-ON............................................................................................................ 92
5.1.4.
Power-OFF .......................................................................................................... 94
5.1.5.
Application ........................................................................................................... 95
5.2.
Reset Signal (~RESET) .............................................................................................. 96
5.2.1.
Reset Sequence .................................................................................................. 96
5.2.2.
Pin Description .................................................................................................... 97
5.2.3.
Electrical Characteristics ...................................................................................... 97
5.2.4.
Application ........................................................................................................... 97
5.3.
BOOT Signal .............................................................................................................. 99
5.3.1.
Pin Description .................................................................................................... 99
5.4.
BAT-RTC (Backup Battery) ....................................................................................... 100
5.4.1.
Pin Description .................................................................................................. 100
5.4.2.
Electrical Characteristics .................................................................................... 101
5.4.3.
Application ......................................................................................................... 101
5.4.3.1.
5.4.3.2.
5.4.3.3.
Super Capacitor .....................................................................................................101
Non-Rechargeable Battery......................................................................................101
Rechargeable Battery .............................................................................................102
5.5.
Buzzer Output........................................................................................................... 103
5.5.1.
Pin Description .................................................................................................. 103
5.5.2.
Electrical Characteristics .................................................................................... 103
5.5.3.
Application ......................................................................................................... 104
5.5.4.
Recommended Characteristics .......................................................................... 104
5.6.
External Interrupt ...................................................................................................... 105
5.6.1.
Pin Description .................................................................................................. 105
5.6.2.
Electrical Characteristics .................................................................................... 105
5.6.3.
Application ......................................................................................................... 105
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5.7.
VCC_2V8 and VCC_1V8 Output ............................................................................... 107
5.7.1.
Pin Description .................................................................................................. 107
5.7.2.
Electrical Characteristics .................................................................................... 107
5.8.
FLASH-LED (LED0).................................................................................................. 108
5.8.1.
Pin Description .................................................................................................. 108
5.8.2.
Electrical Characteristics .................................................................................... 109
5.8.3.
Application ......................................................................................................... 109
5.9.
Analog to Digital Converter ....................................................................................... 110
5.9.1.
Pin Description .................................................................................................. 110
5.9.2.
Electrical Characteristics .................................................................................... 110
5.10.
Digital to Analog Converter ....................................................................................... 111
5.10.1. Pin Description .................................................................................................. 111
5.10.2. Electrical Characteristics .................................................................................... 111
6. POWER CONSUMPTION ................................................................................ 112
6.1.
Power Consumption without the Sierra Wireless Software Suite ................................ 112
6.2.
Power Consumption with the Sierra Wireless Software Suite .................................... 113
7. CONSUMPTION MEASUREMENT PROCEDURE .......................................... 116
7.1.
Hardware Configuration ............................................................................................ 116
7.1.1.
Equipments Used .............................................................................................. 116
7.1.2.
Q Series Development Kit Board v3 ................................................................... 117
7.1.3.
SIM Cards ......................................................................................................... 117
7.2.
Software Configuration ............................................................................................. 118
7.2.1.
Embedded Module Configuration ....................................................................... 118
7.2.2.
Equipment Configuration.................................................................................... 118
8. RELIABILITY COMPLIANCE AND RECOMMENDED STANDARDS ............. 120
8.1.
Reliability Compliance............................................................................................... 120
8.2.
Applicable Standards Listing ..................................................................................... 120
8.3.
Environmental Specifications .................................................................................... 121
8.3.1.
Function Status Classification ............................................................................ 121
8.4.
Reliability Prediction Model ....................................................................................... 122
8.4.1.
Life Stress Tests ................................................................................................ 122
8.4.2.
Environmental Resistance Stress Tests ............................................................. 123
8.4.3.
Corrosive Resistance Stress Tests..................................................................... 124
8.4.4.
Thermal Resistance Cycle Stress Tests ............................................................. 125
8.4.5.
Mechanical Resistance Stress Tests .................................................................. 126
8.4.6.
Handling Resistance Stress Tests ...................................................................... 128
9. DESIGN GUIDELINES ..................................................................................... 129
General Rules and Constraints ................................................................................................ 129
9.1.
Power Supply ........................................................................................................... 129
9.2.
Antenna .................................................................................................................... 129
9.1.
Layout/Pads Design .................................................................................................. 130
9.2.
Routing Constraints .................................................................................................. 131
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9.2.1.
9.2.2.
System Connector ............................................................................................. 131
Power Supply .................................................................................................... 131
9.2.3.
9.2.4.
9.2.5.
SIM Interface ..................................................................................................... 133
Audio Circuit ...................................................................................................... 133
RF Circuit .......................................................................................................... 133
9.2.2.1.
9.2.5.1.
9.2.5.2.
9.2.5.3.
Ground Plane and Shielding Connection .................................................................133
UFL/SMA Connector...............................................................................................135
Coaxial Cable.........................................................................................................135
Precidip Connector .................................................................................................136
9.3.
EMC and ESD Recommendations ............................................................................ 137
9.4.
Mechanical Integration .............................................................................................. 137
9.5.
Operating System Upgrade....................................................................................... 138
10. EMBEDDED TESTABILITY ............................................................................. 139
10.1.
Serial Link Access .................................................................................................... 139
10.2.
RF Output Accessibility ............................................................................................. 140
11. CONNECTOR AND PERIPHERAL DEVICE REFERENCES .......................... 141
11.1.
General Purpose Connector ..................................................................................... 141
11.2.
SIM Card Reader...................................................................................................... 141
11.3.
Microphone............................................................................................................... 141
11.4.
Speaker .................................................................................................................... 142
11.5.
Antenna Cable .......................................................................................................... 142
11.6.
RF board-to-board connector .................................................................................... 142
11.7.
GSM antenna ........................................................................................................... 142
11.8.
Buzzer ...................................................................................................................... 143
12. CERTIFICATION COMPLIANCE AND RECOMMENDED STANDARDS ....... 144
12.1.
Certification Compliance ........................................................................................... 144
12.2.
Applicable Standards Listing ..................................................................................... 144
13. REFERENCES ................................................................................................. 146
13.1.
Web Site Support ..................................................................................................... 146
13.2.
Reference Documents .............................................................................................. 146
13.2.1. Sierra Wireless Software Documentation ........................................................... 146
13.2.2. Firmware Documentation ................................................................................... 147
13.2.3. Hardware Documentation .................................................................................. 147
13.2.4. Other Sierra Wireless Documentation ................................................................ 147
13.2.5. Other Related Documentation ............................................................................ 148
13.2.6. Application Notes ............................................................................................... 148
13.3.
List of Abbreviations ................................................................................................. 148
14. SAFETY RECOMMENDATIONS (FOR INFORMATION ONLY) ..................... 151
14.1.
RF Safety ................................................................................................................. 151
14.1.1. General ............................................................................................................. 151
14.1.2. Exposure to RF Energy ...................................................................................... 151
14.1.3. Efficient Terminal Operation ............................................................................... 151
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Product Technical Specification and
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14.1.4.
Antenna Care and Replacement ........................................................................ 151
14.2.
General Safety.......................................................................................................... 152
14.2.1. Driving ............................................................................................................... 152
14.2.2. Electronic Devices ............................................................................................. 152
14.2.3. Vehicle Electronic Equipment............................................................................. 152
14.2.4. Medical Electronic Equipment ............................................................................ 152
14.2.5. Aircraft ............................................................................................................... 152
14.2.6. Children ............................................................................................................. 153
14.2.7. Blasting Areas ................................................................................................... 153
14.2.8. Potentially Explosive Atmospheres..................................................................... 153
WA_DEV_Q26RD_PTS_001
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List of Figures
Figure 1.
Functional Architecture ............................................................................................... 20
Figure 2.
Power Supply During Burst Emission .......................................................................... 22
Figure 3.
Power Supply Ripple Graph (TBC).............................................................................. 23
Figure 4.
Start-up Current Waveform ......................................................................................... 24
Figure 5.
Q2687 Refreshed Embedded Module Mechanical Drawing ......................................... 25
Figure 6.
Maximum Bulk Occupied on the Host Board ............................................................... 26
Figure 7.
SPI Timing Diagram (Mode 0, Master, 4 wires) ........................................................... 40
Figure 8.
SPI Timing Diagram with LOAD Signal (Mode 0, Master, 4 wires) ............................... 41
Figure 9.
Example of a 3-wire SPI Bus Application..................................................................... 42
Figure 10.
Example of a 4-wire SPI Bus Application..................................................................... 42
Figure 11.
I C Timing Diagram (master)....................................................................................... 43
Figure 12.
Example1 of an I2C Bus Application ............................................................................ 44
Figure 13.
Example2 of an I2C Bus Application ............................................................................ 44
Figure 14.
Asynchronous Access................................................................................................. 47
Figure 15.
Synchronous Access .................................................................................................. 49
Figure 16.
Read Synchronous Timing .......................................................................................... 49
Figure 17.
Write Synchronous Timing .......................................................................................... 50
Figure 18.
Example of a Parallel Bus Application (NAND Memory) .............................................. 51
Figure 19.
Example of a Keyboard Implementation ...................................................................... 53
Figure 20.
Example of an RS-232 Level Shifter Implementation for UART1 ................................. 55
Figure 21.
Example of V24/CMOS Serial Link Implementation for UART1.................................... 56
Figure 22.
Example of a Full Modem V24/CMOS Serial Link Implementation for UART1.............. 56
Figure 23.
Example of RS-232 Level Shifter Implementation for UART2 ...................................... 59
Figure 24.
Example of a Typical SIM Socket Implementation ....................................................... 62
Figure 25.
Example of a USB Implementation .............................................................................. 65
Figure 26.
MIC1 Equivalent Circuits ............................................................................................. 69
Figure 27.
Example of a MIC1 Differential Connection with LC Filter ............................................ 69
Figure 28.
Example of a MIC1 Differential Connection without an LC Filter .................................. 70
Figure 29.
Example of a MIC1 Single-Ended Connection with LC Filter........................................ 71
Figure 30.
Example of a MIC1 Single-Ended Connection without an LC Filter .............................. 71
Figure 31.
MIC2 Equivalent Circuits ............................................................................................. 72
Figure 32.
Example of a MIC2 Differential Connection with LC Filter ............................................ 73
Figure 33.
Example of a MIC2 Differential Connection without an LC Filter .................................. 74
Figure 34.
Example of a MIC2 Single-Ended Connection with LC Filter........................................ 74
Figure 35.
Example of a MIC2 Single-Ended Connection without an LC Filter .............................. 75
Figure 36.
SPK1 Equivalent Circuits ............................................................................................ 76
Figure 37.
SPK2 Equivalent Circuits ............................................................................................ 77
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Product Technical Specification and
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Figure 38.
Example of an SPK Differential Connection................................................................. 78
Figure 39.
Example of an SPK Single-Ended Connection ............................................................ 78
Figure 40.
PCM Frame Waveform ............................................................................................... 81
Figure 41.
PCM Sampling Waveform ........................................................................................... 81
Figure 42.
Battery Charging Diagram........................................................................................... 83
Figure 43.
Ni-Cd/Ni-Mh Charging Waveform ................................................................................ 84
Figure 44.
Li-Ion Full Charging Waveform .................................................................................... 85
Figure 45.
Phase 2 Pulse ............................................................................................................ 86
Figure 46.
Phase 2 Rest .............................................................................................................. 87
Figure 47.
Phase 3 Switch ........................................................................................................... 87
Figure 48.
Example of an ADC Application .................................................................................. 89
Figure 49.
Temperature Sensor Characteristics ........................................................................... 91
Figure 50.
Power-ON Sequence (no PIN code activated) ............................................................. 93
Figure 51.
Power-OFF Sequence ................................................................................................ 95
Figure 52.
Example of ON/~OFF Pin Connection ......................................................................... 95
Figure 53.
Reset Sequence Waveform ........................................................................................ 96
Figure 54.
Example of ~Reset Pin Connection with Switch Configuration ..................................... 98
Figure 55.
Example of ~Reset Pin Connection with Transistor Configuration................................ 98
Figure 56.
Example of BOOT Pin Implementation ........................................................................ 99
Figure 57.
Real Time Clock Power Supply ................................................................................. 100
Figure 58.
RTC Supplied by a Gold Capacitor ........................................................................... 101
Figure 59.
RTC Supplied by a Non-Rechargeable Battery.......................................................... 101
Figure 60.
RTC Supplied by a Rechargeable Battery ................................................................. 102
Figure 61.
Example of a Buzzer Implementation ........................................................................ 104
Figure 62.
Example of an LED Driven by the Buzzer Output ...................................................... 104
Figure 63.
Example of INT0 Driven by an Open Collector .......................................................... 106
Figure 64.
Example of INT1 Driven by an Open Collector .......................................................... 106
Figure 65.
LED0 State During RESET and Initialization Time ..................................................... 109
Figure 66.
Example of FLASH-LED Implementation................................................................... 109
Figure 67.
Typical Hardware Configuration ................................................................................ 116
Figure 68.
Layout Requirement ................................................................................................. 130
Figure 69.
Precidip Connector Pad Design (Sierra Wireless Side).............................................. 131
Figure 70.
Power Supply Routing Example ................................................................................ 132
Figure 71.
Burst Simulation Circuit............................................................................................. 132
Figure 72.
AppCad Screenshot for MicroStrip Design ................................................................ 134
Figure 73.
Routing Examples..................................................................................................... 134
Figure 74.
UFL/SMA Connector ................................................................................................. 135
Figure 75.
Antenna Connection to both RF pad and Ground pad ............................................... 136
Figure 76.
Precidip Connector ................................................................................................... 136
Figure 77.
Main Serial Link (UART1) Debug Access .................................................................. 139
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List of Tables
Table 1:
Q2687 Refreshed Embedded Module Features........................................................... 17
Table 2:
List of RF Frequency Ranges...................................................................................... 20
Table 3:
Input Power Supply Voltage ........................................................................................ 23
Table 4:
Power Supply Pin-Out................................................................................................. 23
Table 5:
Current Start-Up (TBC) ............................................................................................... 24
Table 6:
Available Interfaces and Signals ................................................................................. 28
Table 7:
General Purpose Connector Pin Description ............................................................... 29
Table 8:
Signal Comparison between the Q Series Intelligent Embedded Modules ................... 34
Table 9:
Electrical Characteristic of a 2.8 Volt Type (2V8) Digital I/O ......................................... 35
Table 10:
Electrical Characteristic of a 1.8 Volt Type (1V8) Digital I/O ......................................... 35
Table 11:
Open Drain Output Type ............................................................................................. 35
Table 12:
Reset State Definition ................................................................................................. 36
Table 13:
GPIO Pin Description.................................................................................................. 37
Table 14:
SPI Bus Configuration................................................................................................. 39
Table 15:
SPI Bus AC Characteristics ........................................................................................ 40
Table 16:
SPI1 Pin Description ................................................................................................... 41
Table 17:
SPI2 Pin Description ................................................................................................... 41
Table 18:
I2C AC Characteristics ................................................................................................ 43
Table 19:
I2C Pin Description...................................................................................................... 44
Table 20:
Parallel Interface Pin Description ................................................................................ 45
Table 21:
AC Characteristics of Asynchronous Accesses ........................................................... 47
Table 22:
AC Characteristics of Synchronous Accesses ............................................................. 50
Table 23:
Address Bus Size Details ............................................................................................ 51
Table 24:
Keyboard Interface Pin Description ............................................................................. 52
Table 25:
UART1 Pin Description ............................................................................................... 54
Table 26:
UART2 Pin Description ............................................................................................... 58
Table 27:
SIM Pin Description .................................................................................................... 61
Table 28:
Electrical Characteristics of the SIM Interface ............................................................. 61
Table 29:
SIM Socket Pin Description......................................................................................... 62
Table 30:
USB Pin Description ................................................................................................... 64
Table 31:
Electrical Characteristics of the USB Interface ............................................................ 64
Table 32:
Antenna Specifications ............................................................................................... 67
Table 33:
Analog Audio Pin Description ...................................................................................... 68
Table 34:
Electrical Characteristics of MIC1................................................................................ 69
Table 35:
Recommended Components for a MIC1 Differential Connection ................................. 70
Table 36:
Recommended Components for a MIC1 Single-Ended Connection ............................. 72
Table 37:
Electrical Characteristics of MIC2................................................................................ 72
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Product Technical Specification and
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Table 38:
Recommended Components for a MIC2 Differential Connection ................................. 74
Table 39:
Recommended Components for a MIC2 Single-Ended Connection ............................. 75
Table 40:
Speaker Information ................................................................................................... 76
Table 41:
Electrical Characteristics of SPK1 ............................................................................... 76
Table 42:
Electrical Characteristics of SPK2 ............................................................................... 77
Table 43:
AC Characteristics of the Digital Audio Interface ......................................................... 82
Table 44:
PCM Interface Pin Description .................................................................................... 82
Table 45:
Electrical Characteristics of Ni-Cd/Ni-Mh Battery Timing Charge ................................. 85
Table 46:
Electrical Characteristics of Li-Ion Battery Timing Charge............................................ 86
Table 47:
Battery Charging Interface Pin Description .................................................................. 88
Table 48:
Electrical Characteristics of the Temperature Monitoring Feature ................................ 88
Table 49:
Charger Recommendations ........................................................................................ 90
Table 50:
ON/~OFF Signal Pin Description ................................................................................. 92
Table 51:
Electrical Characteristics of the ON/~OFF Signal ........................................................ 92
Table 52:
Ton/off-hold Minimum Values ........................................................................................... 94
Table 53:
Reset Signal Pin Description....................................................................................... 97
Table 54:
Electrical Characteristics of the Reset Signal .............................................................. 97
Table 55:
Reset Settings ............................................................................................................ 98
Table 56:
BOOT Settings ........................................................................................................... 99
Table 57:
Boot Signal Pin Description......................................................................................... 99
Table 58:
BAT-RTC Pin Description ......................................................................................... 100
Table 59:
Electrical Characteristics of the BAT-RTC Interface................................................... 101
Table 60:
PWM/Buzzer Output Pin Description ......................................................................... 103
Table 61:
Electrical Characteristics of the Buzzer Output .......................................................... 103
Table 62:
External Interrupt Pin Description .............................................................................. 105
Table 63:
Electrical Characteristics of the External Input/Interrupt ............................................. 105
Table 64:
VCC_2V8 and VCC_1V8 Pin Description .................................................................. 107
Table 65:
Electrical Characteristics of the VCC_2V8 and VCC_1V8 Signals ............................. 107
Table 66:
FLASH-LED Status ................................................................................................... 108
Table 67:
FLASH-LED Pin Description ..................................................................................... 108
Table 68:
Electrical Characteristics of the FLASH-LED Signal .................................................. 109
Table 69:
ADC Pin Description ................................................................................................. 110
Table 70:
Electrical Characteristics of the ADC ......................................................................... 110
Table 71:
DAC Pin Description ................................................................................................. 111
Table 72:
Electrical Characteristics of the DAC ......................................................................... 111
Table 73:
Power Consumption Without the Sierra Wireless Software Suite; Typical Values ...... 112
Table 74:
Power Consumption With the Application CPU @ 26MHz, Typical Values................. 113
Table 75:
Power Consumption With the Application CPU @ 104MHz, Typical Values............... 114
Table 76:
Recommended Equipments ...................................................................................... 117
Table 77:
Operating Mode Configuration .................................................................................. 118
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Product Technical Specification and
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Table 78:
Standards Conformity for the Q2687 Refreshed Embedded Module .......................... 120
Table 79:
Applicable Standards and Requirements................................................................... 120
Table 80:
Operating Class Temperature Range ........................................................................ 121
Table 81:
ISO Failure Mode Severity Classification................................................................... 122
Table 82:
Life Stress Tests ....................................................................................................... 122
Table 83:
Environmental Resistance Stress Tests .................................................................... 123
Table 84:
Corrosive Resistance Stress Tests ........................................................................... 124
Table 85:
Thermal Resistance Cycle Stress Tests .................................................................... 125
Table 86:
Mechanical Resistance Stress Tests ......................................................................... 126
Table 87:
Handling Resistance Stress Tests ............................................................................. 128
Table 88:
Contact Information of GSM Antenna Providers ........................................................ 143
Table 89:
Standards Conformity for the Q2687 Refreshed Embedded Module .......................... 144
Table 90:
Applicable Standards and Requirements for the Q2687 Refreshed Embedded Module ...
................................................................................................................................. 144
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1. Introduction
The Q2687 Refreshed Intelligent Embedded Module is a self-contained E-GSM/DCS/GSM850/PCS
GPRS/EGPRS 900/1800/850/1900 quad-band embedded module. It supports the Sierra Wireless
Software Suite, the world’s most comprehensive cellular development environment which allows
embedded standard ANSI C applications to be natively executed directly on the embedded module.
For more information about Sierra Wireless Software Suite, refer to the documents listed in section
13.2 Reference Documents.
Note that this document only covers the Q2687 Refreshed Intelligent Embedded Module and does not
cover the programmable capabilities available through the Sierra Wireless Software Suite.
1.1.
Physical Dimensions

Length: 40 mm

Width: 32.2 mm

Thickness: 4 mm

Weight: 8g
Note:
1.2.
The physical dimensions mentioned above do not include the shielding pins.
General Features
The following table lists the Q2687 Refreshed embedded module features.
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Product Technical Specification and
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Table 1:
Introduction
Q2687 Refreshed Embedded Module Features
Feature
Description
Shielding
The Q2687 Refreshed embedded module has complete body shielding.
Intelligent
Embedded Module
Control

Full set of AT commands for GSM/GPRS/EGPRS including GSM 07.07 and
07.05 AT command sets

Status indication for GSM
GSM/DCS Output
Power

Class 4 (2 W) for GSM 850 and E-GSM

Class 1 (1 W) for DCS and PCS

GPRS multislot class 10

Multislot class 2 supported

PBCCH support

Coding schemes: CS1 to CS4

EGPRS multislot class 10

Multislot class 2 supported

PBCCH support

Coding schemes MCS5 to MCS9

GSM Voice Features with Emergency calls 118 XXX

Full Rate (FR)/ Enhanced Full Rate (EFR) / Half Rate (HR) / Adaptive Multi
Rate (AMR)

Echo cancellation and noise reduction

Full duplex Hands free

SMS MT, MO

SMS CB

SMS storage into SIM card

Call Forwarding, Call Barring

Multiparty

Call Waiting, Call Hold

USSD

Data circuit asynchronous, transparent, and non-transparent up to 14400
bits/s

Fax Group 3 compatible

1.8V/3V SIM interface

5V SIM interfaces are available with external adaptation

SIM Tool Kit Release 99
GPRS
EGPRS
Voice
SMS
GSM
Supplementary
Services
Data/Fax
SIM Interface
Real Time Clock
Real Time Clock (RTC) with calendar and alarm
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Product Technical Specification and
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1.3.
Introduction
GSM/GPRS/EGPRS Features

2-Watt EGSM – GPRS 900/850 radio section running under 3.6 volts

1-Watt GSM-GPRS1800/1900 radio section running under 3.6 volts

0.5-Watt EGPRS 900/850 radio section running under 3.6 volts

0.4-Watt EGPRS 1800/1900 radio section running under 3.6 volts

Hardware GSM/GPRS class 10 and EGPRS class 10 capable
1.4.
Interfaces

Digital section running under 2.8V and 1.8V

3V/1V8 SIM interface

Complete Interfacing:
 Power supply
1.5.




Serial link
Analog audio
PCM digital audio
SIM card

Keyboard


USB 2.0 slave
Serial LCD (not available with AT commands)

Parallel port for specific applications (under Open AT® control only)
Operating System

Real Time Clock (RTC) with calendar


Battery charger
Echo cancellation + noise reduction (quadri codec)

Full GSM or GSM/GPRS/EGPRS Operating System stack
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Product Technical Specification and
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1.6.
Introduction
Connection Interfaces
The Q2687 Refreshed Intelligent Embedded Module has four external connections:

Three for RF circuit:
 UFL connector
 Soldered connection
 Precidip connection

One for baseband signals:
 100-pin I/O connector (compatible with Q2686 and Q2687 embedded modules)
1.7.
1.7.1.
Environment and Mechanics
RoHS Directive Compliant
The Q2687 Refreshed embedded module is compliant with RoHS Directive
2002/95/EC which sets limits for the use of certain restricted hazardous substances.
This directive states that “from 1st July 2006, new electrical and electronic equipment
put on the market does not contain lead, mercury, cadmium, hexavalent chromium,
polybrominated biphenyls (PBB) or polybrominated diphenyl ethers (PBDE)”.
1.7.2.
Disposing of the Product
This electronic product is subject to the EU Directive 2002/96/EC for Waste Electrical
and Electronic Equipment (WEEE). As such, this product must not be disposed off at
a municipal waste collection point. Please refer to local regulations for directions on
how to dispose of this product in an environmental friendly manner.
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2. Functional Specifications
2.1.
Functional Architecture
The global architecture of the Q2687 Refreshed Embedded Module is described in the figure below.
Figure 1. Functional Architecture
2.1.1.
RF Functionalities
The Radio Frequency (RF) functionalities of the Q2687 Refreshed embedded module complies with
the Phase II EGSM 900/DCS 1800 and GSM 850/PCS 1900 recommendations. The frequency range
for the transmit band and receive band are given in the table below.
Table 2:
List of RF Frequency Ranges
RF Bandwidth
Transmit Band (Tx)
Receive Band (Rx)
GSM 850
824 to 849 MHz
869 to 894 MHz
E-GSM 900
880 to 915 MHz
925 to 960 MHz
DCS 1800
1710 to 1785 MHz
1805 to 1880 MHz
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Product Technical Specification and
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Functional Specifications
RF Bandwidth
Transmit Band (Tx)
Receive Band (Rx)
PCS 1900
1850 to 1910 MHz
1930 to 1990 MHz
The Radio Frequency (RF) component is based on a specific quad-band chip that includes the
following:

Quad-band LNAs (Low Noise Amplifier)


Digital Low-IF Receiver
Offset PLL/PL (Phase Locked Loop and Polar Loop) transmitter

Frequency synthesizer

Digitally controlled crystal oscillator (DCXO)

Tx/Rx FEM (Front-End module) for quad-band GSM/GPRS/EGPRS
2.1.2.
Baseband Functionalities
The digital part of the Q2687 Refreshed embedded module is composed of a PCF5213 PHILIPS
chip. This chipset uses a 0.18µm mixed technology CMOS, which allows massive integration as well
as low current consumption.
2.2.
Operating System
The Q2687 Refreshed Embedded Module is Sierra Wireless Software Suite compliant. With the Sierra
Wireless Software Suite, customers can embed their own applications with the Q2687 Refreshed
embedded module and turn the Q2687 Refreshed embedded module into a solution for their specific
market need.
The operating system allows for the Q2687 Refreshed Embedded Module to be controlled by AT
commands. However, some interfaces in the Q2687 Refreshed embedded module may still not be
available even with AT command control as these interfaces are dependent on the peripheral devices
connected to the Q2687 Refreshed embedded module.
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3. Technical Specifications
3.1.
Power Supply
The power supply is one of the key issues in the design of a GSM terminal. Due to the burst emission
in GSM/GPRS, the power supply must be able to deliver high current peaks in a short time. During
these peaks, the ripple (Uripp) on the supply voltage must not exceed a certain limit (refer to Table 3:
Input Power Supply Voltage).
Listed below are the corresponding radio burst rates in connected mode:

GSM/GPRS class 2 terminals emit 577µs radio bursts every 4.615ms (see Figure 2 Power
Supply During Burst Emission)

GPRS class 10 terminals emit 1154µs radio bursts every 4.615ms
In connected mode, the RF Power Amplifier current (2.0A peak in GSM /GPRS mode) flows with a
ratio of:

1/8 of the time (around 577µs every 4.615ms for GSM /GPRS cl 2 – 2RX/1TX)
and

2/8 of the time (around 1154µs every 4.615ms for GSM /GPRS cl 10 – 3RX/2TX)
with the rising time at around 10µs.
Figure 2. Power Supply During Burst Emission
Only VBATT (external power supply source) input is necessary to supply the Q2687 Refreshed
embedded module. VBATT also provides for the following functions:

Directly supplies the RF components with 3.6V. (Note that it is essential to keep a minimum
voltage ripple at this connection in order to avoid any phase error or spectrum modulation
degradation. On the other hand, insufficient power supply could dramatically affect some RF
performances such as TX power, modulation spectrum, EMC performance, spurious emission
and frequency error.)

Internally used to provide through several regulators, the power supplies VCC_2V8 and
VCC_1V8, which are needed for the baseband signals.
The Q2687 Refreshed embedded module shielding case is the grounding. The ground must be
connected on the motherboard through a complete layer on the PCB.
The following table describes the electrical characteristics of the input power supply voltage that will
guarantee nominal functioning of the Q2687 Refreshed embedded module.
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Product Technical Specification and
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Table 3:
VBATT
Technical Specifications
Input Power Supply Voltage
V MIN
V NOM
V MAX
Ripple Max (U ripp )
I peak Max
3.2V1,2
3.6V
4.8V
250mVpp (freq < 10kHz)
40mVpp (10kHz < freq <
100kHz)
5mVpp (freq > 100kHz)
2.0A
(TBC)
1: This value must be guaranteed during the burst (with 2.0A Peak in GSM, GPRS or EGPRS mode)
2: Maximum operating Voltage Standing Wave Ratio (VSWR) 2:1.
Figure 3. Power Supply Ripple Graph (TBC)
When the Q2687 Refreshed embedded module is supplied with a battery, the total impedance
(battery + protections + PCB) should be less than 150 m.
Caution: When the Q2687 Refreshed embedded module is in Alarm mode or Off mode, no voltage has to be
applied on any pin of the 100-pin connector except on VBATT (pins 1 to 4), BAT-RTC (pin 7) for RTC
operation or ON/~OFF (pin 19) to power-ON the Q2687 Refreshed embedded module.
3.1.1.
Table 4:
Power Supply Pin-Out
Power Supply Pin-Out
Signal
Pin Number
VBATT
1, 2, 3, 4
GND
Shielding
The grounding connection is made through the shielding; therefore the four leads must be soldered to
the ground plane.
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Product Technical Specification and
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3.1.2.
Technical Specifications
Start-Up Current
During the initial second following Power ON, a peak of current appears. This peak of current is called
“IStartup current” and has a duration of about 161ms (typical) (TBC).
Figure 4: Start-up Current Waveform shows the current waveform and identifies the peak considered
as the start-up current.

Figure 4. Start-up Current Waveform
In this condition, we can consider the following results:
Table 5:
Current Start-Up (TBC)
Current Peak at
Ambient Temperature
(25°C)
VBATTmin (3.2V)
VBATTtyp (3.6V)
VBATTmax (4.8V)
IStartup
86 mA
77 mA
64 mA
3.1.3.
Decoupling of Power Supply Signals
Decoupling capacitors on VBATT lines are embedded in the Q2687 Refreshed embedded module, so
it should not be necessary to add decoupling capacitors close to the embedded module.
However, in case of EMI/RFI problems, the VBATT signal may require some EMI/RFI decoupling –
parallel 33pF capacitors close to the embedded module or a serial ferrite bead (or both to get better
results). Low frequency decoupling capacitors (22µF to 100µF) can be used to reduce TDMA noise
(217Hz).
Caution: When ferrite beads are used, the recommendation given for the power supply connection must be
carefully followed (high current capacity and low impedance).
3.2.
Mechanical Specifications
The Q2687 Refreshed Embedded Module has a complete self-contained shield and the mechanical
specifications are shown in the figure below, which also specifies the following:

The area needed for the Q2687 Refreshed embedded module to fit in an application

The drill template for the four pads to be soldered on the application board

The dimensions and tolerance for correctly placing the 100-pin female connector on the
application board
It is strongly recommended to plan a free area (no components) around the Q2687 Refreshed
embedded module in order to facilitate the removal/re-assembly of the embedded module on the
application board.
Also take note that when transmitting, the Q2687 Refreshed Embedded Module produces heat (due
to the internal Power Amplifier). This heat will generate a temperature increase and may warm the
application board on which the Q2687 Refreshed embedded module is soldered. This is especially
true for GPRS Class 10 use in low band. The Q2687 Refreshed Embedded Module’s built-in
temperature sensor can be used to monitor the temperature inside the module. For more information,
refer to document [14] AirPrime Q2687 Product Technical Specification.
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Product Technical Specification and
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Technical Specifications
Figure 5. Q2687 Refreshed Embedded Module Mechanical Drawing
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Product Technical Specification and
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Technical Specifications
Figure 6. Maximum Bulk Occupied on the Host Board
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Product Technical Specification and
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3.3.
Technical Specifications
Firmware Upgrade
The firmware upgrade process consists of downloading GSM/GPRS/EGPRS software into the
corresponding internal flash memories of the Q2687 Refreshed Intelligent Embedded Module.
Downloading is done through the GSM Main Serial link port (UART1) connected to a PC using the
XMODEM protocol.
A specific AT command, AT+WDWL, is used to start the download. For more information, refer to
document [8] Firmware 7.43 AT Commands Manual (Sierra Wireless Software Suite 2.33).
Access to the following UART1 main serial link signals are required to carry out downloading:


CT103-TXD1
CT104-RXD1

~CT106-CTS1

~CT105-RTS1

GND
Consequently, it is very important to plan and define easy access to these signals during the
hardware design of the application board. For more information about these signals, refer to section
4.7 Main Serial Link (UART1).
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4. Interfaces
Caution: Some of the Embedded Module interface signals are multiplexed in order to limit the number of pins
but this architecture includes some restrictions.
4.1.
General Purpose Connector (GPC)
A 100-pin connector is provided to interface the Q2687 Refreshed Intelligent Embedded Module with
a board containing either a serial or parallel LCD module; a keyboard, a SIM connector or a battery
connection.
The following table lists the interfaces and signals available on the GPC and specifies whether these
®
interfaces and signals are driven by AT Command, Open AT or both.
Table 6:
Available Interfaces and Signals
Name
Driven by AT commands
Driven by Open AT
Serial Interface

Parallel Interface

Keyboard Interface


Main Serial Link


Auxiliary Serial Link


SIM Interface


General Purpose IO


Analog to Digital Converter


Analog Audio Interface


PWM / Buzzer Output


Battery Charging Interface


External Interruption




®
BAT-RTC (Backup Battery)
LED0 signal
Digital Audio Interface (PCM)
USB 2.0 Interface
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
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Product Technical Specification and
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4.1.1.
Interfaces
Pin Description
Refer to the following table for the pin description of the general purpose connector.
Table 7:
Pin
General Purpose Connector Pin Description
Signal Name
Nominal
Mux
I/O
Type
Voltage
I/O*
Reset State
Description
Dealing with Unused Pins
ADC0/VBATT
VBATT
Power Supply
ADC0/VBATT
VBATT
Power Supply
ADC0/VBATT
VBATT
Power Supply
ADC0/VBATT
VBATT
Power Supply
VCC_1V8
VCC_1V8
1.8V Supply Output
NC
CHG-IN
CHG-IN
Charger input
NC
BAT-RTC
BAT-RTC
I/O
RTC Battery connection
NC
CHG-IN
CHG-IN
Charger input
NC
SIM-VCC
1V8 or 3V
SIM Power Supply
10
VCC_2V8
VCC_2V8
NC
1V8 or 3V
I/O
VCC_1V8
SIM Detection
~SIM-RST
1V8 or 3V
SIM reset Output
SIM-CLK
1V8 or 3V
SIM Clock
BUZZER0
Open Drain
Buzzer Output
NC
Not Used
Add a test point / a jumper/ a switch to
VCC_1V8 (Pin 5) in case Download
Specific mode is used (See product
specification for details)
11
SIM-IO
12
SIMPRES
13
14
15
16
2.8V Supply Output
Pull-up (about
10kΩ)
GPIO18
BOOT
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Product Technical Specification and
Customer Design Guideline
Pin
Signal Name
Nominal
Mux
Interfaces
I/O
Type
Voltage
I/O*
Reset State
Description
Dealing with Unused Pins
1 and
Undefined
LED0 Output
NC
NC or add a test point
17
LED0
Open Drain
18
~RESET
VCC_1V8
I/O
RESET Input
19
ON/~OFF
VBATT
ON / ~OFF Control
20
ADC1/BATTEMP
Analog
Analog temperature
Pull to GND
21
ADC2
Analog
Analog to Digital Input
Pull to GND
22
GPIO31/ SPI1
Load
VCC_2V8
I/O
23
SPI1-CLK
GPIO28
VCC_2V8
SPI1 Clock
NC
24
SPI1-I
GPIO30
VCC_2V8
SPI1 Data Input
NC
25
SPI1-IO
GPIO29
VCC_2V8
I/O
SPI1 Data Input / Output
NC
26
SPI2-CLK
GPIO32
VCC_2V8
SPI2 Clock
NC
27
SPI2-IO
GPIO33
VCC_2V8
I/O
SPI2 Data Input / Output
NC
28
GPIO35/SPI2Load
VCC_2V8
I/0
29
SPI2-I
GPIO34
VCC_2V8
SPI2 Data Input
NC
30
CT104-RXD2
GPIO15
VCC_1V8
Auxiliary RS232 Receive
Add a test point for debugging
31
CT103-TXD2
GPIO14
VCC_1V8
Auxiliary RS232 Transmit
(TXD2) Pull-up to VCC_1V8 with 100kΩ
and add a test point for debugging
32
~CT106-CTS2
GPIO16
VCC_1V8
Auxiliary RS232 Clear To Send
(CTS2) Add a test point for debugging
33
~CT105-RTS2
GPIO17
VCC_1V8
Auxiliary RS232 Request To Send
(RTS2) Pull-up to VCC_1V8 with 100kΩ
and add a test point for debugging
34
MIC2N
Analog
Micro 2 Input Negative
NC
35
SPK1P
Analog
Speaker 1 Output Positive
NC
36
MIC2P
Analog
Micro 2 Input Positive
NC
37
SPK1N
Analog
Speaker 1 Output Negative
NC
38
MIC1N
Analog
Micro 1 Input Negative
NC
WA_DEV_Q26RD_PTS_001
Rev 002
NC
NC
April 20, 2010
30
Product Technical Specification and
Customer Design Guideline
Pin
Signal Name
Nominal
Mux
Interfaces
I/O
Type
Voltage
I/O*
Reset State
Description
Dealing with Unused Pins
39
SPK2P
Analog
Speaker 2 Output Positive
NC
40
MIC1P
Analog
Micro 1 Input Positive
NC
41
SPK2N
Analog
Speaker 2 Output Negative
NC
42
A1
VCC_1V8
Address bus 1
NC
43
GPIO0
32kHz
VCC_2V8
I/O
32 kHz
44
SCL1
GPIO26
Open Drain
45
GPIO19
VCC_2V8
I/O
46
SDA1
Open Drain
I/O
47
GPIO21
VCC_2V8
I/O
Undefined
NC
48
GPIO20
VCC_2V8
I/O
Undefined
NC
49
INT1
GPIO25
VCC_2V8
Interruption 1 Input
If INT1 is not used, it should be
configured as GPIO
50
INT0
GPIO3
VCC_1V8
Interruption 0 Input
If INT0 is not used, it should be
configured as GPIO
51
GPIO1
**
VCC_1V8
I/O
Undefined
52
VPAD-USB
VPAD-USB
53
GPIO2
VCC_1V8
I/O
54
USB-DP
VPAD-USB
I/O
55
GPIO23
VCC_2V8
I/O
56
USB-DM
VPAD-USB
I/O
57
GPIO22
VCC_2V8
I/O
NC
58
GPIO24
VCC_2V8
I/O
NC
59
COL0
GPIO4
VCC_1V8
I/O
Pull-up
Keypad column 0
NC
60
COL1
GPIO5
VCC_1V8
I/O
Pull-up
Keypad column 1
NC
61
COL2
GPIO6
VCC_1V8
I/O
Pull-up
Keypad column 2
NC
62
COL3
GPIO7
VCC_1V8
I/O
Pull-up
Keypad column 3
NC
GPIO27
**
**
**
WA_DEV_Q26RD_PTS_001
Rev 002
NC
I²C Clock
NC
NC
I²C Data
NC
NC
USB Power supply input
Undefined
NC
NC
USB Data
NC
NC
USB Data
NC
April 20, 2010
31
Product Technical Specification and
Customer Design Guideline
Pin
Signal Name
Interfaces
I/O
Type
Voltage
I/O*
Reset State
Description
Dealing with Unused Pins
GPIO8
VCC_1V8
I/O
Pull-up
Keypad column 4
NC
ROW4
GPIO13
VCC_1V8
I/O
Keypad Row 4
NC
ROW3
GPIO12
VCC_1V8
I/O
Keypad Row 3
NC
66
ROW2
GPIO11
VCC_1V8
I/O
Keypad Row 2
NC
67
ROW1
GPIO10
VCC_1V8
I/O
Keypad Row 1
NC
68
ROW0
GPIO9
VCC_1V8
I/O
Keypad Row 0
NC
69
~CT125-RI
GPIO42
VCC_2V8
Undefined
Main RS232 Ring Indicator
NC
70
~CT109-DCD1
GPIO43
VCC_2V8
Undefined
Main RS232 Data Carrier Detect
NC
71
CT103-TXD1
GPIO36
VCC_2V8
Main RS232 Transmit
(TXD1) Pull-up to VCC_2V8 with 100kΩ
and add a test point for firmware update
72
~CT105-RTS1
GPIO38
VCC_2V8
Main RS232 Request To Send
(RTS1) Pull-up to VCC_2V8 with 100kΩ
and add a test point for firmware update
73
CT104-RXD1
GPIO37
VCC_2V8
Main RS232 Receive
(RXD1) Add a test point for firmware
update
74
~CT107-DSR1
GPIO40
VCC_2V8
Main RS232 Data Set Ready
NC
75
~CT106-CTS1
GPIO39
VCC_2V8
Main RS232 Clear To Send
(CTS1) Add a test point for firmware
update
76
~CT108-2-DTR1
GPIO41
VCC_2V8
Main RS232 Data Terminal Ready
(DTR1) Pull-up to VCC_2V8 with 100kΩ
77
PCM-SYNC
VCC_1V8
Pull-down
PCM Frame Synchro
NC
78
PCM-IN
VCC_1V8
Pull-up
PCM Data Input
NC
79
PCM-CLK
VCC_1V8
Pull-down
PCM Clock
NC
80
PCM-OUT
VCC_1V8
Pull-up
PCM Data Output
NC
81
/OE-R/W
VCC_1V8
Output Enable/ Read not write
NC
82
DAC0
Analog
Digital to Analog Output
NC
83
/CS3
VCC_1V8
Chip Select 3
NC
84
/WE-E
VCC_1V8
Write Enable
NC
85
D0
VCC_1V8
I/O
Data for Peripheral
NC
Nominal
Mux
63
COL4
64
65
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32
Product Technical Specification and
Customer Design Guideline
Signal Name
Pin
Nominal
Mux
Interfaces
I/O
Type
Voltage
I/O*
Reset State
Description
Dealing with Unused Pins
86
D15
VCC_1V8
I/O
Data for Peripheral
NC
87
D1
VCC_1V8
I/O
Data for Peripheral
NC
88
D14
VCC_1V8
I/O
Data for Peripheral
NC
89
D2
VCC_1V8
I/O
Data for Peripheral
NC
90
D13
VCC_1V8
I/O
Data for Peripheral
NC
91
D3
VCC_1V8
I/O
Data for Peripheral
NC
92
D12
VCC_1V8
I/O
Data for Peripheral
NC
93
D4
VCC_1V8
I/O
Data for Peripheral
NC
94
D11
VCC_1V8
I/O
Data for Peripheral
NC
95
D5
VCC_1V8
I/O
Data for Peripheral
NC
96
D10
VCC_1V8
I/O
Data for Peripheral
NC
97
D6
VCC_1V8
I/O
Data for Peripheral
NC
98
D9
VCC_1V8
I/O
Data for Peripheral
NC
99
D7
VCC_1V8
I/O
Data for Peripheral
NC
100
D8
VCC_1V8
I/O
Data for Peripheral
NC
The I/O direction information is only for the nominal signal. When the signal is configured in GPIO, it can always be an Input or an Output.
**
For more information about multiplexing these signals, refer to section 4.3 General Purpose Input/Output.
Refer to section 4.2 Electrical Information for Digital I/O for open drain, 2V8 and 1V8 voltage characteristics and reset state definitions.
WA_DEV_Q26RD_PTS_001
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33
Product Technical Specification and
Customer Design Guideline
4.1.2.
Interfaces
Pin Out Differences
Although the Q Series Embedded Modules are compatible, one must be careful with regards to their specific signal differences. The following table
enumerates the pin out differences between the Q2686, Q2687 and the Q2687 Refreshed embedded modules.
Table 8:
Signal Comparison between the Q Series Intelligent Embedded Modules
Q2686
Pin #
Q2687
Q2687 Refreshed
Signal
Name
Function
Value
Signal
Name
Function
Value
Signal
Name
Function
Value
Reserved
Not in Use
A1
Address Bus
1V8
A1
Address Bus
1V8
51
GPIO1
General
Purpose IO
1V8
CS2
/A25
/GPIO1
Chip Select,
Address bus,
General
Purpose IO
1V8
CS2
/A25
/GPIO1
Chip Select,
Address bus,
General
Purpose IO
1V8
53
GPIO2
General
Purpose IO
1V8
A24 / GPIO2
Address bus,
General
Purpose IO
1V8
A24 / GPIO2
Address bus,
General
Purpose IO
1V8
83
NC-5
Not Connected
/CS3
Chip Select 3
1V8
/CS3
Chip Select 3
1V8
81,
84100
NC
Not Connected
Parallel
Interface
Parallel Bus
Interface
1V8
Parallel
Interface
Parallel Bus
Interface
1V8
42
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34
Product Technical Specification and
Customer Design Guideline
4.2.
Interfaces
Electrical Information for Digital I/O
There are three types of digital I/Os on the Q2687 Refreshed Embedded Module:

2.8 volt CMOS

1.8 volt CMOS

Open drain
Refer to the tables below for the electrical characteristics of these three digital I/Os.
Table 9:
Electrical Characteristic of a 2.8 Volt Type (2V8) Digital I/O
Parameter
I/O Type
Minimum
Typical
Maximum
Internal 2.8V power supply
VCC_2V8
2.74V
2.8V
2.86V
Input / Output
Pin
VIL
CMOS
-0.5V*
0.84V
VIH
CMOS
1.96V
3.2V*
VOL
CMOS
VOH
CMOS
0.4V
Condition
IOL = - 4 mA
2.4V
IOH = 4 mA
IOH
4mA
IOL
- 4mA
Absolute maximum ratings
All 2.8V I/O pins do not accept input signal voltages above the maximum voltage specified above;
except for the UART1 interface, which is 3.3V tolerant.
Table 10:
Electrical Characteristic of a 1.8 Volt Type (1V8) Digital I/O
Parameter
I/O Type
Minimum
Typical
Maximum
Internal 1.8V power supply
VCC_1V8
1.76V
1.8V
1.94V
Input / Output
Pin
VIL
CMOS
-0.5V*
0.54V
VIH
CMOS
1.33V
2.2V*
VOL
CMOS
VOH
CMOS
Table 11:
0.4V
Condition
IOL = - 4 mA
1.4V
IOH = 4 mA
IOH
4mA
IOL
- 4mA
Absolute maximum ratings
Open Drain Output Type
Signal Name
LED0
BUZZER0
SDA1 / GPIO27
and
SCL1 / GPIO26
Parameter
I/O Type
VOL
Open Drain
0.4V
IOL
Open Drain
8mA
VOL
Open Drain
0.4V
IOL
Open Drain
100mA
VTOL
Open Drain
3.3V
VIH
Open Drain
VIL
Open Drain
0.8V
VOL
Open Drain
0.4V
WA_DEV_Q26RD_PTS_001
Rev 002
Minimum
Typical
Maximum
Condition
Tolerated voltage
2V
April 20, 2010
35
Product Technical Specification and
Customer Design Guideline
Signal Name
Parameter
I/O Type
IOL
Open Drain
Interfaces
Minimum
Typical
Maximum
Condition
3mA
The reset states of the I/Os are given in each interface description chapter. Definitions of these states
are given in the table below.
Table 12:
Reset State Definition
Parameter
Definition
Set to GND
Set to supply 1V8 or 2V8 depending on I/O type
Pull-down
Internal pull-down with ~60kΩ resistor
Pull-up
Internal pull-up with ~60kΩ resistor to supply 1V8 or 2V8 depending on I/O type
High impedance
Undefined
Caution: Undefined must not be used in an application if a special state is required at
reset. These pins may be toggling a signal(s) during reset.
WA_DEV_Q26RD_PTS_001
Rev 002
April 20, 2010
36
Product Technical Specification and
Customer Design Guideline
4.3.
Interfaces
General Purpose Input/Output
The Q2687 Refreshed Embedded Module provides up to 44 General Purpose I/O. They are used to
control any external device such as a LCD or a Keyboard backlight.
4.3.1.
Pin Description
Refer to the following table for the pin description of the general purpose input/output interface.
Table 13:
GPIO Pin Description
Pin
Number
Signal
I/O
I/O Type
Reset State
Multiplexed With
43
GPIO0
I/O
2V8
Undefined
32kHz***
51
GPIO1
I/O
1V8
Undefined
A25/~CS2*
53
GPIO2
I/O
1V8
Undefined
A24*
50
GPIO3
I/O
1V8
INT0
59
GPIO4
I/O
1V8
Pull up
COL0
60
GPIO5
I/O
1V8
Pull up
COL1
61
GPIO6
I/O
1V8
Pull up
COL2
62
GPIO7
I/O
1V8
Pull up
COL3
63
GPIO8
I/O
1V8
Pull up
COL4
68
GPIO9
I/O
1V8
ROW0
67
GPIO10
I/O
1V8
ROW1
66
GPIO11
I/O
1V8
ROW2
65
GPIO12
I/O
1V8
ROW3
64
GPIO13
I/O
1V8
ROW4
31
GPIO14
I/O
1V8
CT103 / TXD2
30
GPIO15
I/O
1V8
CT104 / RXD2
32
GPIO16
I/O
1V8
~CT106 / CTS2
33
GPIO17
I/O
1V8
~CT105 / RTS2
12
GPIO18
I/O
1V8
SIMPRES
45
GPIO19
I/O
2V8
Not mux
48
GPIO20
I/O
2V8
Undefined
Not mux
47
GPIO21
I/O
2V8
Undefined
Not mux
57
GPIO22
I/O
2V8
Not mux**
55
GPIO23
I/O
2V8
Not mux**
58
GPIO24
I/O
2V8
Not mux
49
GPIO25
I/O
2V8
INT1
44
GPIO26
I/O
Open drain
SCL1
46
GPIO27
I/O
Open drain
SDA1
23
GPIO28
I/O
2V8
SPI1-CLK
25
GPIO29
I/O
2V8
SPI1-IO
24
GPIO30
I/O
2V8
SPI1-I
22
GPIO31
I/O
2V8
WA_DEV_Q26RD_PTS_001
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April 20, 2010
37
Product Technical Specification and
Customer Design Guideline
Interfaces
Pin
Number
Signal
I/O
I/O Type
Reset State
Multiplexed With
26
GPIO32
I/O
2V8
SPI2-CLK
27
GPIO33
I/O
2V8
SPI2-IO
29
GPIO34
I/O
2V8
SPI2-I
28
GPIO35
I/O
2V8
71
GPIO36
I/O
2V8
CT103 / TXD1
73
GPIO37
I/O
2V8
CT104 / RXD1
72
GPIO38
I/O
2V8
~CT105 / RTS1
75
GPIO39
I/O
2V8
~CT106 / CTS1
74
GPIO40
I/O
2V8
~CT107 / DSR1
76
GPIO41
I/O
2V8
~CT108-2 / DTR1
69
GPIO42
I/O
2V8
Undefined
~CT125 / RI1
70
GPIO43
I/O
2V8
Undefined
~CT109 / DCD1
If the parallel bus is used, these pins will be mandatory for the parallel bus functionality. Refer to section 4.5
Parallel Interface.
**
If a Bluetooth module is used with the Q2687 Refreshed Embedded Module, this GPIO must be reserved.
***
With the Sierra Wireless Software Suite 2. For more details, refer to document [8] Firmware 7.43 AT
Commands Manual (Sierra Wireless Software Suite 2.33).
Refer to section 4.2 Electrical Information for Digital I/O for open drain, 2V8 and 1V8 voltage
characteristics and reset state definitions.
WA_DEV_Q26RD_PTS_001
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38
Product Technical Specification and
Customer Design Guideline
4.4.
Interfaces
Serial Interface
The Q2687 Refreshed Embedded Module may be connected to an LCD module driver through either
the two SPI buses (3 or 4-wire interface) or through the I2C bus (2-wire interface).
4.4.1.
SPI Bus
Both SPI bus interfaces include:

A CLK signal (SPIx-CLK)


An I/O signal (SPIx-IO)
An I signal (SPIx-I)

A CS (Chip Select) signal complying with the standard SPI bus (any GPIO) (~SPIx-CS)

An optional Load signal (only the SPIx-LOAD signal)
4.4.1.1.
Characteristics
The following lists the features available on the SPI bus.

Master mode operation

The CS signal must be any GPIO


The LOAD signal (optional) is used for word handling mode (only the SPIx-LOAD signal)
SPI speed is from 102Kbit/s to 13Mbit/s in master mode operation

3 or 4-wire interface (5-wire interface is possible with the optional SPIx-LOAD signal)

SPI-mode configuration: 0 to 3 (for more details, refer to document [8] Firmware 7.43 AT
Commands Manual (Sierra Wireless Software Suite 2.33))

1 to 16 bits data length
4.4.1.2.
Table 14:
SPI Bus Configuration
Operation
Master
SPI Configuration
Maximum
Speed
13 Mb/s
SPIMode
Duplex
0,1,2,3
Half
3-wire Type
4-wire Type
5-wire Type
SPIx-CLK;
SPIx-IO;
GPIOx as CS
SPIx-CLK;
SPIx-IO;
SPIx-I;
GPIOx as CS
SPIx-CLK;
SPIx-IO;
SPIx-I;
GPIOx as CS;
SPIx-LOAD (not muxed
in GPIO)
Refer to section 4.4.1.6 Application for more information on the signals used and their corresponding
configurations.
WA_DEV_Q26RD_PTS_001
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39
Product Technical Specification and
Customer Design Guideline
4.4.1.3.
Interfaces
SPI Waveforms
The figure below shows the waveforms for SPI transfers with a 4-wire configuration in master mode 0.
Figure 7. SPI Timing Diagram (Mode 0, Master, 4 wires)
Table 15:
SPI Bus AC Characteristics
Signal
Description
Minimum
CLK-cycle
SPI clock frequency
0.102
Data-OUT delay
Data out ready delay time
Data-IN-setup
Data in setup time
ns
Data-OUT-hold
Data out hold time
ns
WA_DEV_Q26RD_PTS_001
Rev 002
Typical
Maximum
Unit
13
MHz
10
ns
April 20, 2010
40
Product Technical Specification and
Customer Design Guideline
Interfaces
The following figure shows the waveform for SPI transfer with the LOAD signal configuration in master
mode 0 (chip select is not represented).
Figure 8. SPI Timing Diagram with LOAD Signal (Mode 0, Master, 4 wires)
4.4.1.4.
SPI1 Pin Description
Refer to the following table for the SPI1 pin description.
Table 16:
SPI1 Pin Description
Pin
Number
Signal
I/O
I/O Type
Reset
State
Description
Multiplexed With
22
SPI1-LOAD
2V8
SPI load
GPIO31
23
SPI1-CLK
2V8
SPI Serial Clock
GPIO28
24
SPI1-I
2V8
SPI Serial input
GPIO30
25
SPI1-IO
I/O
2V8
SPI Serial input/output
GPIO29
Refer to section 4.2 Electrical Information for Digital I/O for open drain, 2V8 and 1V8 voltage
characteristics and reset state definitions.
4.4.1.5.
SPI2 Pin Description
Refer to the following table for the SPI2 pin description.
Table 17:
SPI2 Pin Description
Pin
Number
Signal
I/O
I/O Type
Reset
State
Description
Multiplexed With
26
SPI2-CLK
2V8
SPI Serial Clock
GPIO32
27
SPI2-IO
I/O
2V8
SPI Serial input/output
GPIO33
28
SPI2-LOAD
2V8
SPI load
GPIO35
29
SPI2-I
2V8
SPI Serial input
GPIO34
WA_DEV_Q26RD_PTS_001
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41
Product Technical Specification and
Customer Design Guideline
Interfaces
Refer to section 4.2 Electrical Information for Digital I/O for open drain, 2V8 and 1V8 voltage
characteristics and reset state definitions.
4.4.1.6.
4.4.1.6.1.
Application
3-wire Application
For the 3-wire configuration, only the SPIx-I/O is used as both input and output.
Figure 9. Example of a 3-wire SPI Bus Application
The SPIx-I line is not used in a 3-wire configuration. Instead, this can be left open or used as a GPIO
for other application functionality.
One pull-up resistor, R1, is needed to set the SPIx-CS level during the reset state. Except for R1, no
other external component is needed is the electrical specifications of the customer application comply
with the Q2687 Refreshed embedded module interface electrical specifications.
Note that the value of R1 depends on the peripheral plugged to the SPIx interface.
4.4.1.6.2.
4-wire Application
For the 4-wire configuration, the input and output data lines are dissociated. SPIx-I/O is used as
output only and SPIx-I is used as input only.
Figure 10.
Example of a 4-wire SPI Bus Application
One pull-up resistor, R1, is needed to set the SPIx-CS level during the reset state. Except for R1, no
other external component is needed if the electrical specifications of the customer application comply
with the Q2687 Refreshed embedded module SPIx interface electrical specifications.
WA_DEV_Q26RD_PTS_001
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42
Product Technical Specification and
Customer Design Guideline
4.4.1.6.3.
Interfaces
5-wire Application
For the 5-wire configuration, SPIx-I/O is used as output only and SPIx-I is used as input only. The
dedicated SPIx-LOAD signal is also used. This is an additional signal in more than a Chip Select (any
other GPIOx).
I2C Bus
4.4.2.
The I2C Bus interface includes a CLK signal (SCL1) and a data signal (SDA1) complying with a
100kbit/s-standard interface (standard mode: s-mode).
The I C bus is always in master mode operation.
The maximum speed transfer is 400Kbit/s (fast mode: f-mode).
For more information on the I2C bus, see document [21] “I2C Bus Specification”, Version 2.0, Philips
Semiconductor 1998.
I2C Waveforms
4.4.2.1.
The figure below shows the I2C bus waveform in master mode configuration.
Figure 11.
Table 18:
I C Timing Diagram (master)
I C AC Characteristics
Signal
Description
Minimum
SCL1-freq
I²C clock frequency
100
T-start
Hold time START condition
0.6
µs
T-stop
Setup time STOP condition
0.6
µs
T-free
Bus free time, STOP to
START
1.3
µs
T-high
High period for clock
0.6
µs
T-data-hold
Data hold time
T-data-setup
Data setup time
100
WA_DEV_Q26RD_PTS_001
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Maximum
Unit
400
kHz
0.9
µs
ns
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Customer Design Guideline
Interfaces
I2C Pin Description
4.4.2.2.
Refer to the following table for the I C pin description.
Table 19:
I C Pin Description
Pin
Number
Signal
I/O
I/O Type
Reset
State
Description
Multiplexed With
44
SCL1
Open drain
Serial Clock
GPIO26
46
SDA1
I/O
Open drain
Serial Data
GPIO27
Refer to section 4.2 Electrical Information for Digital I/O for open drain, 2V8 and 1V8 voltage
characteristics and reset state definitions.
4.4.2.3.
Figure 12.
Application
Example1 of an I C Bus Application
The two lines, SCL1 and SDA1, both need to be pulled-up to the VI2C voltage. Although the VI2C
voltage is dependent on the customer application component connected to the I2C bus, it must comply
with the Q2687 Refreshed embedded module electrical specifications.
The VCC_2V8 (pin 10) of the Q2687 Refreshed embedded module can be used to connect the pullup resistors if the I2C bus voltage is 2.8V.
Figure 13.
Example2 of an I C Bus Application
The I2C bus complies with both the standard mode (baud rate = 100Kbit/s) and the fast mode (baud
rate = 400Kbit/s). The value of the pull up resistors varies depending on the mode used. When using
Fast mode, it is recommended to use 1KΩ resistors to ensure compliance with the I C specifications.
When using Standard mode, a higher resistance value can be used to save power consumption.
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Product Technical Specification and
Customer Design Guideline
4.5.
Interfaces
Parallel Interface
The Q2687 Refreshed Intelligent Embedded Module may be connected to a NAND memory through
the 16-bit 1.8V parallel bus interface. The VCC_1V8 (pin 5) of the Q2687 Refreshed embedded
module can be used to supply the power to this interface.
The following lists the features available on the parallel interface.

Up to 128MB address range per chip select ( CS and CS 3 )

Support for 8, 16, and 32 bit (multiplexed synchronous mode) devices

Byte enabled signals for 16 bit and 32 bit operations

Fully programmable timings based on AHB (a division of the ARM clock at 26 MHz ) cycles
(except for synchronous mode which is based on CLKBURST cycles at 26 MHz only):
 individually selectable timings for read and write
 0 to 7 clock cycles for setup




1 to 32 clock cycles for access cycle
1 to 8 clock cycles for page access cycle
0 to 7 clock cycles for hold
1 to 15 clock cycles for turnaround

Page mode Flash memory support
 page size of 4, 8, 16 or 32

Burst mode Flash memory support up to AHB (26 MHz) clock frequency (for devices sensitive
to rising edge of the clock only)
 AHB, AHB/2, AHB/4 or AHB/8 burst clock output
 burst size of 4, 8, 16, 32
 automatic CLKBURST power-down between accesses

Intel mode ( WE and OE ) and Motorola mode (E and R / W ) control signals

Synchronous write mode


Synchronous multiplexed data/address mode (x32 mode)
Adaptation to word, half word, and byte accesses to the external devices
4.5.1.
Pin Description
Refer to the following table for the pin description of the Parallel Interface.
Table 20:
Pin
Number
Parallel Interface Pin Description
Signal
I/O
I/O
Type
Reset
State
Description
Multiplexed
With
Not mux
42
A1
1V8
This signal has 2 functions: external
Address or byte enable 2 for 16 or 32
bits devices.
Another name is used: A1_BE2
51
/CS2
I/O
1V8
Undefined
User Chip Select 2
A25/GPIO1
53
A24
I/O
1V8
Undefined
Address line for external
device/Command selection
GPIO2
81
/OE-R/W
1V8
Output enable signal (Intel mode);
read not write signal (Motorola mode)
Not mux
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Product Technical Specification and
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Interfaces
Pin
Number
Signal
I/O
I/O
Type
Reset
State
Description
Multiplexed
With
83
/CS3
1V8
User Chip select 3
Not mux
84
/WE-E
1V8
Write enable Signal (Intel mode)
enable signal (Motorola mode)
Not mux
85
D0
I/O
1V8
Pull down
Bidirectional data and address line
Not mux
86
D15
I/O
1V8
Pull down
Bidirectional data and address line
Not mux
87
D1
I/O
1V8
Pull down
Bidirectional data and address line
Not mux
88
D14
I/O
1V8
Pull down
Bidirectional data and address line
Not mux
89
D2
I/O
1V8
Pull down
Bidirectional data and address line
Not mux
90
D13
I/O
1V8
Pull down
Bidirectional data and address line
Not mux
91
D3
I/O
1V8
Pull down
Bidirectional data and address line
Not mux
92
D12
I/O
1V8
Pull down
Bidirectional data and address line
Not mux
93
D4
I/O
1V8
Pull down
Bidirectional data and address line
Not mux
94
D11
I/O
1V8
Pull down
Bidirectional data and address line
Not mux
95
D5
I/O
1V8
Pull down
Bidirectional data and address line
Not mux
96
D10
I/O
1V8
Pull down
Bidirectional data and address line
Not mux
97
D6
I/O
1V8
Pull down
Bidirectional data and address line
Not mux
98
D9
I/O
1V8
Pull down
Bidirectional data and address line
Not mux
99
D7
I/O
1V8
Pull down
Bidirectional data and address line
Not mux
100
D8
I/O
1V8
Pull down
Bidirectional data and address line
Not mux
Refer to section 4.2 Electrical Information for Digital I/O for open drain, 2V8 and 1V8 voltage
characteristics and reset state definitions.
4.5.2.
Electrical Characteristics
4.5.3.
Asynchronous Access
For all timing diagrams in the following section, the notations hereafter are used:

ADR is used for address bus A24, A1 or D[15:0] when used as address lines

DATA is used for D[15:0] when used as DATA lines

CS is used for CS 2 or CS 3

BE is used for A1_ BE 2 (Double function on A1 pin)

OE and R/ W are used for OE _ R / W

WE and E are used for WE _E

ADV signal (not available on 100-pin connector) is the address valid signal
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Product Technical Specification and
Customer Design Guideline
Figure 14.
Interfaces
Asynchronous Access
The ADV signal is mentioned here because synchronous mode devices may require the signal to
be asserted when an asynchronous access is performed.
Refer to the table below for the AC characteristics of asynchronous accesses.
Table 21:
AC Characteristics of Asynchronous Accesses
Signal
Description
Minimum
TADR_DELAY
ADR delay time from
Typical
Maximum
Unit
ns
CS active
TDATA_SETUP
TDATA_HOLD
TDATA_DELAY
TDATA_SECURE
DATA to
OE
DATA hold time after
inactive
OE
DATA delay time from
active
DATA hold time after
inactive or
TADV_DELAY
setup time
CS
18
CS
WE
ns
ns
ns
-5[1]
ns
inactive
ADV delay time from
ns
3[2]
ns
CS active and inactive
TWE_DELAY
WE
delay time from
active
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CS
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Product Technical Specification and
Customer Design Guideline
Interfaces
Signal
Description
Minimum
TOE_DELAY
OE delay time from CS
Typical
Maximum
Unit
3[2]
ns
ns
active
TBE_DELAY
BE
delay time from
active
CS
[1]
This timing forces to program at least one cycle for asynchronous
[2]
These maximum delays also depends on the setting of registers
4.5.4.
Synchronous Access
For all timing diagrams in the following section, the notations hereafter are used:

ADR is used for address bus as A24, A1 or D[15:0] when used as address lines

DATA is used for D[15:0] when used as data lines

CS is used for CS 2 or CS 3

BE is used for A1_ BE 2 (Double function on A1 pin)

OE and R/ W are used for OE _ R / W

WE and E are used for WE _E

CLKBURST is the internal clock at 26MHz (not available on connector pin-out)

ADV signal (not available on 100-pin connector) is the address valid signal

BAA signal (not available on 100-pin connector) is the burst address advance for
synchronous operations

WAIT signal (not available on 100-pin connector) is the wait signal for synchronous
operation
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Product Technical Specification and
Customer Design Guideline
Figure 15.
Synchronous Access
Figure 16.
Read Synchronous Timing
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Product Technical Specification and
Customer Design Guideline
Figure 17.
Interfaces
Write Synchronous Timing
Refer to the table below for the AC characteristics of the synchronous accesses.
Table 22:
AC Characteristics of Synchronous Accesses
Signal
Description
TDATA_DELAY
CLKBURTS falling edge to
DATA valid delay
TWE_SETUP
TBE_DELAY
WE
Minimum
to CLKBURST setup
time
Typical
Unit
ns
ns
CLKBURST falling edge to
BE
Maximum
delay
ns
TCLKBURST
CLKBURST clock : period
time
TADR_SETUP
Address bus setup time
ns
TADR_HOLD
Address bus hold time
19
ns
TADR_TRISTATE
Address bus tristate time
TDATA_SETUP
Data bus setup time
ns
TDATA_HOLD
Data bus hold time
ns
TCS_SETUP
Chip select setup time
ns
38.4
ns
10
ns
TADV_SETUP
ADV
setup time
ns
TADV_HOLD
ADV
hold time
ns
TOE_DELAY
Output Enable delay time
13
TBAA_DELAY
BAA
13
TWAIT_SETUP
Wait setup time
delay time
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Product Technical Specification and
Customer Design Guideline
Interfaces
Signal
Description
Minimum
TWAIT_HOLD
Wait hold time
4.5.5.
Typical
Maximum
Unit
ns
Additional Information Regarding Address Size
Bus
The following table establishes the possible configurations depending on address bus size requested
on parallel interface.
Table 23:
Address Bus Size Details
Address Bus Size
Address Lines
Chip Select Available
A1
/CS2, /CS3
A1, A24
/CS2, /CS3
A1, A24, A25
/CS3
Notes
A25 is multiplexed with /CS2
Note that some signals are multiplexed. It is thus possible to have the following configurations:

CS3*, A1, GPIO1, GPIO2

CS3*, A1, A24, GPIO1

CS3*, A1, A24, A25;


CS3*, CS2*, A1, GPIO2
CS3*, CS2*, A1, A24
4.5.6.
Figure 18.
Application
Example of a Parallel Bus Application (NAND Memory)
When interfaced with a NAND memory, VCC_1V8 (pin 5) can be used to supply the power to the
NAND.
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Product Technical Specification and
Customer Design Guideline
4.6.
Interfaces
Keyboard Interface
This interface provides 10 connections:


5 rows (ROW0 to ROW4)
and
5 columns (COL0 to COL4)
Scanning is digital and debouncing is performed in the Q2687 Refreshed Embedded Module. No
discreet components like resistors or capacitors are needed when using this interface.
The keyboard scanner is equipped with the following:

Internal pull-down resistors for the rows

Pull-up resistors for the columns
Note that current only flows from the column pins to the row pins. This allows transistors to be used in
place of the switch for power-on functions.
4.6.1.
Pin Description
Refer to the following table for the pin description of the keyboard interface.
Table 24:
Keyboard Interface Pin Description
Pin
Number
Signal
I/O
I/O Type
Reset
State
Description
Multiplexed With
59
COL0
I/O
1V8
Pull-up
Column scan
GPIO4
60
COL1
I/O
1V8
Pull-up
Column scan
GPIO5
61
COL2
I/O
1V8
Pull-up
Column scan
GPIO6
62
COL3
I/O
1V8
Pull-up
Column scan
GPIO7
63
COL4
I/O
1V8
Pull-up
Column scan
GPIO8
64
ROW4
I/O
1V8
Row scan
GPIO13
65
ROW3
I/O
1V8
Row scan
GPIO12
66
ROW2
I/O
1V8
Row scan
GPIO11
67
ROW1
I/O
1V8
Row scan
GPIO10
68
ROW0
I/O
1V8
Row scan
GPIO9
Refer to section 4.2 Electrical Information for Digital I/O for open drain, 2V8 and 1V8 voltage
characteristics and reset state definitions.
With the Sierra Wireless Software Suite 2, when the keyboard service is used, the set of multiplexed
signals becomes unavailable for any other purpose. In the same way, if one or more GPIOs (from the
table above) are allocated elsewhere, the keyboard service becomes unavailable.
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Product Technical Specification and
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4.6.2.
Figure 19.
Interfaces
Application
Example of a Keyboard Implementation
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Product Technical Specification and
Customer Design Guideline
4.7.
Interfaces
Main Serial Link (UART1)
The main serial link (UART1) is used for communication between the Q2687 Refreshed embedded
module and a PC or host processor. It consists of a flexible 8-wire serial interface that complies with
V24 protocol signalling, but not with the V28 (electrical interface) due to its 2.8V interface.
To get a V24/V28 (i.e. RS-232) interface, an RS-232 level shifter device is required as described in
section 4.7.2 Level Shifter Implementation.
The signals used by UART1 are as follows:


TX data (CT103/TXD1)
RX data (CT104/RXD1)

Request To Send (~CT105/RTS1)

Clear To Send (~CT106/CTS1)

Data Terminal Ready (~CT108-2/DTR1)

Data Set Ready (~CT107/DSR1)

Data Carrier Detect (~CT109/DCD1)

Ring Indicator (CT125/RI1)
4.7.1.
Pin Description
Refer to the following table for the pin description of the UART1 interface.
Table 25:
UART1 Pin Description
Pin
Number
Signal*
I/O
I/O Type
Reset
State
Description
Multiplexed
With
69
~CT125/RI1
2V8
Undefined
Ring Indicator
GPIO42
70
~CT109/DCD1
2V8
Undefined
Data Carrier Detect
GPIO43
71
CT103/TXD1
2V8
Transmit serial data
GPIO36
72
~CT105/RTS1
2V8
Request To Send
GPIO38
73
CT104/RXD1
2V8
Receive serial data
GPIO37
74
~CT107/DSR1
2V8
Data Set Ready
GPIO40
75
~CT106/CTS1
2V8
Clear To Send
GPIO39
76
~CT108-2/DTR1
2V8
Data Terminal Ready
GPIO41
Shielding
leads
CT102/GND
GND
Ground
According to PC view
Refer to section 4.2 Electrical Information for Digital I/O for open drain, 2V8 and 1V8 voltage
characteristics and reset state definitions.
With the Sierra Wireless Software Suite 2, when the UART1 service is used, the set of multiplexed
signals becomes unavailable for any other purpose. In the same way, if one or more GPIOs (from the
table above) are allocated elsewhere, the UART1 service becomes unavailable.
The maximum baud rate of UART1 is 921kbit/s with the Sierra Wireless Software Suite 2.33.
The rise and fall times of the reception signals (mainly CT103/TXD1) must be less than 300ns.
The UART1 interface is 2.8V type, but it is 3V tolerant.
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Product Technical Specification and
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Tip:
Interfaces
The Q2687 Refreshed embedded module is designed to operate using all the serial interface signals
and it is recommended to use ~CT105/RTS1 and ~CT106/CTS1 for hardware flow control in order to
avoid data corruption or loss during transmissions.
4.7.2.
Level Shifter Implementation
The level shifter must be a 2.8V with V28 electrical signal compliance.
Figure 20.
Note:
Example of an RS-232 Level Shifter Implementation for UART1
The U1 chip also protects the Q2687 Refreshed embedded module against ESD at 15KV (air
discharge).
4.7.2.1.
Recommended Components

R1, R2
:15KΩ

C1, C2, C3, C4, C5
:1uF


C6
C7
:100nF
:6.8uF TANTAL 10V CP32136 AVX

U1
:ADM3307EACP ANALOG DEVICES

J1
:SUB-D9 female
R1 and R2 are only necessary during the Reset state to force the ~CT1125-RI1 and ~CT109-DCD1
signals to HIGH level.
The ADM3307EACP chip is able to speed up to 921Kb/s. If others level shifters are used, ensure that
their speeds are compliant with the UART1 speed.
The ADM3307EACP can be powered by the VCC_2V8 (pin 10) of the Q2687 Refreshed embedded
module or by an external regulator at 2.8 V.
If the UART1 interface is connected directly to a host processor, it is not necessary to use level
shifters. The interface can be connected as defined in the following sub-section.
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Product Technical Specification and
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4.7.3.
Figure 21.
Interfaces
V24/CMOS Possible Designs
Example of V24/CMOS Serial Link Implementation for UART1
Note that the design presented above is a basic one and that a more flexible design to access the
serial link with all modem signals is presented below.
Figure 22.
Example of a Full Modem V24/CMOS Serial Link Implementation for UART1
It is recommended to add a 15kΩ pull-up resistor on the ~CT125-RI1 and ~CT109-DCD1 signals to
set them to HIGH level during the reset state.
Caution: In case the Power Down mode (Wavecom 32K mode) is to be activated using the Sierra Wireless
Software Suite, the DTR pin must be wired to a GPIO. Refer to document [8] Firmware 7.43 AT
Commands Manual (Sierra Wireless Software Suite 2.33) for more information regarding using the
Sierra Wireless Software Suite to activate Wavecom 32K mode.
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Product Technical Specification and
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4.7.4.
Interfaces
5-wire Serial Interface
The signals used in this interface are as follows:


CT103/TXD1
CT104/RXD1

~CT105/RTS1

~CT106/CTS1

~CT108-2/DTR1
The signal ~CT108-2/DTR1* must be managed following the V24 protocol signaling if slow (or fast)
idle mode is to be used.
The other signals and their multiplexed GPIOs are not available.
Refer to the technical appendixes of document [8] Firmware 7.43 AT Commands Manual (Sierra
Wireless Software Suite 2.33) for more information.
4.7.5.
4-wire Serial Interface
The signals used in this interface are as follows:

CT103/TXD1

CT104/RXD1

~CT105/RTS1

~CT106/CTS1
The signal ~CT108-2/DTR1* must be configured from low level.
The other signals and their multiplexed GPIOs are not available.
Refer to the technical appendixes of document [8] Firmware 7.43 AT Commands Manual (Sierra
Wireless Software Suite 2.33) for more information.
4.7.6.
2-wire Serial Interface
Caution: Although this case is possible for a connected external chip, it is not recommended (and forbidden for
AT command or modem use).
The flow control mechanism has to be managed from the customer side. The signals used in this
interface are as follows:

CT103/TXD1

CT104/RXD1
Signals ~CT108-2/DTR1 and ~CT105/RTS1 must be configured from low level.
Signals ~CT105/RTS1 and ~CT106/CTS1 are not used; default hardware flow control on UART1
should be de-activated using AT command AT+IFC=0,0. Refer to document [8] Firmware 7.43 AT
Commands Manual (Sierra Wireless Software Suite 2.33).
The other signals and their multiplexed GPIOs are not available.
Refer to the technical appendixes of document [8] Firmware 7.43 AT Commands Manual (Sierra
Wireless Software Suite 2.33) for more information.
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4.8.
Interfaces
Auxiliary Serial Link (UART2)
The auxiliary serial link (UART2) is used for communications between the Q2687 Refreshed
embedded module and external devices. It consists of a flexible 4-wire serial interface that complies
with V24 protocol signaling, but not with the V28 (electrical interface) due to its 1.8V interface.
To get a V24/V28 (i.e. RS-232) interface, an RS-232 level shifter device is required as described in
section 4.8.2 Level Shifter Implementation.
Refer to documents [20] Bluetooth Interface Application Note and [8] Firmware 7.43 AT Commands
Manual (Sierra Wireless Software Suite 2.33) for more information about the Bluetooth application on
the auxiliary serial interface (UART2).
The signals used by UART1 are as follows:

TX data (CT103/TXD2)

RX data (CT104/RXD2)

Request To Send (~CT105/RTS2)

Clear To Send (~CT106/CTS2)
4.8.1.
Pin Description
Refer to the following table for the pin description of the UART2 interface.
Table 26:
UART2 Pin Description
Pin
Number
Signal*
I/O
I/O Type
Reset
State
Description
Multiplexed With
30
CT104/RXD2
1V8
Receive serial data
GPIO15
31
CT103/TXD2
1V8
Transmit serial data
GPIO14
32
~CT106/CTS2
1V8
Clear To Send
GPIO16
33
~CT105/RTS2
1V8
Request To Send
GPIO17
According to PC view
Refer to section 4.2 Electrical Information for Digital I/O for open drain, 2V8 and 1V8 voltage
characteristics and reset state definitions.
The maximum baud rate of UART2 is 921kbit/s with the Sierra Wireless Software Suite 2.33.
Tip:
The Q2687 Refreshed embedded module is designed to operate using all the serial interface signals
and it is recommended to use ~CT105/RTS2 and ~CT106/CTS2 for hardware flow control in order to
avoid data corruption during transmissions.
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Product Technical Specification and
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4.8.2.
Interfaces
Level Shifter Implementation
The voltage level shifter must be a 1.8V with V28 electrical signal compliance.
Figure 23.
Example of RS-232 Level Shifter Implementation for UART2
4.8.2.1.

Recommended Components
Capacitors


C1
:220nF
C2, C3, C4 :1µF

Inductor
 L1

RS-232 Transceiver


U1
J1
:10µH
:LINEAR TECHNOLOGY LTC® 2804IGN
:SUB-D9 female
The LTC2804 can be powered by the VCC_1V8 (pin 5) of the Q2687 Refreshed embedded module or
by an external regulator at 1.8 V.
The UART2 interface can be connected directly to others components if the voltage interface is 1.8V.
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4.8.3.
Interfaces
4-wire Serial Interface
The signals used in this interface are as follows:


CT103/TXD2
CT104/RXD2

~CT105/RTS2

~CT106/CTS2
The other signals and their multiplexed GPIOs are not available.
Refer to the technical appendixes of document [8] Firmware 7.43 AT Commands Manual (Sierra
Wireless Software Suite 2.33) for more information.
4.8.4.
2-wire Serial Interface
Caution: Although this case is possible for a connected external chip, it is not recommended (and forbidden for
AT command or modem use).
The flow control mechanism has to be managed from the customer side. The signals used in this
interface are as follows:

CT103/TXD2

CT104/RXD2
Signals ~CT105/RTS2 and ~CT106/CTS2 are not used; default hardware flow control on UART2
should be de-activated using AT command AT+IFC=0,0. Refer to document [8] Firmware 7.43 AT
Commands Manual (Sierra Wireless Software Suite 2.33).
The signal ~CT105/RTS2* must be configured from low level.
The other signals and their multiplexed GPIOs are not available.
Refer to the technical appendixes of document [8] Firmware 7.43 AT Commands Manual (Sierra
Wireless Software Suite 2.33) for more information.
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4.9.
Interfaces
SIM Interface
The Subscriber Identification Module (SIM) may be directly connected to the Q2687 Refreshed
embedded module via this dedicated interface. This interface controls either a 3V or a 1V8 SIM and it
is fully compliant with GSM 11.11 recommendations concerning SIM functions.
The five signals used by this interface are as follows:

SIM-VCC: SIM power supply

~SIM-RST: reset

SIM-CLK: clock

SIM-IO: I/O port

SIMPRES: SIM card detect
4.9.1.
Pin Description
Refer to the following table for the pin description of the SIM interface.
Table 27:
SIM Pin Description
Pin
Number
Signal
I/O
I/O Type
SIM-VCC
2V9 / 1V8
11
SIM-IO
I/O
2V9 / 1V8
12
SIMPRES
13
~SIM-RST
14
SIM-CLK
Reset
State
Description
Multiplexed With
SIM Power Supply
Not mux
*Pull-up
SIM Data
Not mux
1V8
SIM Card Detect
GPIO18
2V9 / 1V8
SIM Reset
Not mux
2V9 / 1V8
SIM Clock
Not mux
SIM-IO pull-up is about 10kΩ.
Refer to section 4.2 Electrical Information for Digital I/O for open drain, 2V8 and 1V8 voltage
characteristics and reset state definitions.
4.9.2.
Electrical Characteristics
Refer to the following table for the electrical characteristics of the SIM interface.
Table 28:
Electrical Characteristics of the SIM Interface
Parameter
Conditions
Minimum
SIM-IO VIH
IIH = ± 20µA
0.7xSIMVCC
SIM-IO VIL
IIL = 1mA
~SIM-RST, SIM-CLK
VOH
Source current = 20µA
0.9xSIMVCC
SIM-IO VOH
Source current = 20µA
0.8xSIMVCC
~SIM-RST, SIM-IO,
SIM-CLK VOL
Sink current = -200µA
SIM-VCC Output
Voltage
SIMVCC = 2.9V
IVCC= 1mA
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Parameter
Interfaces
Conditions
Minimum
Typical
Maximum
Unit
SIMVCC = 1.8V
IVCC= 1mA
1.74
1.8
1.86
10
mA
SIM-VCC current
VBATT = 3.6V
SIM-CLK Rise/Fall
Time
Loaded with 30pF
20
ns
~SIM-RST, Rise/Fall
Time
Loaded with 30pF
20
ns
SIM-IO Rise/Fall
Time
Loaded with 30pF
0.7
SIM-CLK Frequency
Loaded with 30pF
Note:
µs
3.25
MHz
When SIMPRES is used, a low to high transition means that a SIM card is inserted and a high to low
transition means that the SIM card is removed.
4.9.3.
Application
Figure 24.
Example of a Typical SIM Socket Implementation
It is recommended to add Transient Voltage Suppressor diodes (TVS) on the signal(s) connected to
the SIM socket in order to prevent any ElectroStatic Discharge.
TVS diodes with low capacitance (less than 10pF) have to be connected on SIM-CLK and SIM-IO
signals to avoid any disturbance of the rising and falling edge. These types of diodes are mandatory
for the Full Type Approval and should be placed as close to the SIM socket as possible.
4.9.3.1.
SIM Socket Pin Description
The following table lists the SIM socket pin description.
Table 29:
SIM Socket Pin Description
Pin Number
Signal
Description
VCC
SIM-VCC
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Pin Number
Signal
Description
RST
~SIM-RST
CLK
SIM-CLK
CC4
SIMPRES with 100 k pull down resistor
GND
GROUND
VPP
Not connected
I/O
SIM-IO
CC8
VCC_1V8 of the Q2687 Refreshed embedded module
(pin 5)
4.9.3.2.
Recommended Components

R1
:100KΩ

C1
:470pF

C2
:100nF
Note:
Note that this capacitor, C2, on the SIM-VCC line must not exceed 330nF.


D1
D2
:ESDA6V1SC6 from ST
:DALC208SC6 from SGS-THOMSON/ST Microelectronics

J1
:ITT CANNON CCM03 series (Refer to section 11.2 SIM Card Reader.)
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Interfaces
4.10. USB 2.0 Interface
A 4-wire USB slave interface is available on the Q2687 Refreshed embedded module that complies
with USB 2.0 protocol signaling, but not with the electrical interface due to the 5V interface of VPADUSB.
The signals used by the USB interface are as follows:

VPAD-USB

USB-DP

USB-DM

GND
The USB 2.0 interface also features the following:

12Mbit/s full-speed transfer rate

3.3V type compatible

USB Soft connect feature


Download feature is not supported by USB
CDC 1.1 – ACM compliant
Note:
A 5V to 3.3V typical voltage regulator is needed between the external interface power in line (+5V)
and the Q2687 Refreshed embedded module line (VPAD-USB).
4.10.1. Pin Description
Refer to the following table for the pin description of the USB interface.
Table 30:
USB Pin Description
Pin
Number
Signal
I/O
I/O Type
Description
52
VPAD-USB
VPAD_USB
USB Power Supply
54
USB-DP
I/O
VPAD_USB
Differential data interface positive
56
USB-DM
I/O
VPAD_USB
Differential data interface negative
4.10.2. Electrical Characteristics
Refer to the following table for the electrical characteristics of the USB interface.
Table 31:
Electrical Characteristics of the USB Interface
Parameter
Minimum
Typical
Maximum
Unit
VPAD-USB, USB-DP, USB-DM
3.3
3.6
VPAD_USB Input current consumption
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4.10.3. Application
Figure 25.
Example of a USB Implementation
The regulator used is a 3.3V regulator and it is supplied through J1 when the USB wire is plugged.
D1 is an EMI/RFI filter with ESD protection. The internal pull-up resistor of D1 which is used to detect
the interface’s full speed is not connected because it is embedded into the embedded module.
Note that both R1 and C1 have to be close to J1.
4.10.3.1.
Recommended Components


R1
C1, C3
:1MΩ
:100nF

C2, C4
:2.2µF

D1
:STF2002-22 from SEMTECH

U1
:LP2985AIM 3.3V from NATIONAL SEMICONDUCTOR
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Interfaces
4.11. RF Interface
The RF (radio frequency) interface of the Q2687 Refreshed Embedded Module allows the
transmission of RF signals. This interface has a 50Ω nominal impedance and a 0Ω DC impedance.
4.11.1. RF Connections
The antenna cable and connector should be selected in order to minimize loss in the frequency bands
used for GSM 850/900MHz and 1800/1900MHz. The maximum value of loss considered between the
Q2687 Refreshed embedded module and an external connector is 0.5dB.
The Q2687 Refreshed embedded module does not support an antenna switch for a car kit, but this
function can be implemented externally and can be driven using a GPIO.
4.11.1.1.
UFL Connector
A wide variety of cables fitted with UFL connectors from different suppliers may be used. For more
information, refer to section 9.2.5.1 UFL/SMA Connector.
4.11.1.2.
Soldered Solution
The soldered solution will preferably be based on an RG178 coaxial cable. For more information, refer
to section 9.2.5.2 Coaxial Cable.
4.11.1.3.
Precidip Connector
This connector is compatible with Precidip and is dedicated for board-to-board applications and must
be soldered on the customer board. The recommended supplier is as follows:

Preci-dip SA for the Precidip connector (reference: 9PM-SS-0003-02-248//R1)
For more information, refer to section 9.2.5.3 Precidip Connector.
4.11.2. RF Performance
The RF performance is compliant with ETSI GSM 05.05 recommendations.
The main receiver parameters are:

GSM850 Reference Sensitivity = -109 dBm typical (Static & TUHigh)

E-GSM900 Reference Sensitivity = -109 dBm typical (Static & TUHigh)

DCS1800 Reference Sensitivity = -108 dBm typical (Static & TUHigh)

PCS1900 Reference Sensitivity = -108 dBm typical (Static & TUHigh)

Selectivity @ 200 kHz: > +9 dBc


Selectivity @ 400 kHz: > +41 dBc
Linear dynamic range: 63 dB

Co-channel rejection: >= 9 dBc
The main transmitter parameters are:

Maximum output power (EGSM & GSM850): 33 dBm +/- 2 dB at ambient temperature
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
Maximum output power (GSM1800 & PCS1900): 30 dBm +/- 2 dB at ambient temperature

Minimum output power (EGSM & GSM850): 5 dBm +/- 5 dB at ambient temperature

Minimum output power (GSM1800 & PCS1900): 0 dBm +/- 5 dB at ambient temperature
4.11.3. Antenna Specifications
The antenna must meet the requirements specified in the table below.
The optimum operating frequency depends on the application. A dual-band, tri-band or quad-band
antenna should operate in these frequency bands and have the following characteristics.
Table 32:
Antenna Specifications
Characteristic
E-GSM 900
DCS 1800
GSM 850
PCS 1900
TX Frequency
880 to
915 MHz
1710 to 1785
MHz
824 to
849 MHz
1850 to
1910 MHz
RX Frequency
925 to
960 MHz
1805
to 1880 MHz
869 to
894 MHz
1930 to
1990 MHz
Impedance
50Ω
VSWR
RX max
1.5:1
TX max
1.5:1
Typical Radiated Gain
Note:
0dBi in one direction at least
Sierra Wireless recommends a maximum VSWR of 1.5:1 for both TX and RX bands. Even so, all
aspects of this specification will be fulfilled even with a maximum VSWR of 2:1.
For the list of antenna recommendations, refer to section 11.5 Antenna Cable.
4.11.3.1.
Application
The antenna should be isolated as much as possible from analog and digital circuitry (including
interface signals).
On applications with an embedded antenna, poor shielding could dramatically affect the receiving
sensitivity. Moreover, the power radiated by the antenna could affect the application (TDMA noise, for
instance).
As a general recommendation, all components or chips operated at high frequencies
(microprocessors, memories, DC/DC converter) or other active RF parts should not be placed too
close to the Q2687 Refreshed embedded module. In the event that this happens, the correct power
supply layout and shielding should be designed and validated.
Components near RF connections or unshielded feed lines must be prohibited.
RF lines must be kept as short as possible to minimize loss.
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4.12. Analog Audio Interface
The Q2687 Refreshed Embedded Module supports two microphone inputs and two speaker outputs.
It also includes an echo cancellation and a noise reduction feature which allows for an improved
quality of hands-free functionality.
In some cases, ESD protection must be added on the audio interface lines.
4.12.1. Pin Description
The following table lists the pin description of the analog audio interface.
Table 33:
Analog Audio Pin Description
Pin
Number
Signal
I/O
I/O Type
Description
40
MIC1P
Analog
Microphone 1 positive input
38
MIC1N
Analog
Microphone 1 negative input
36
MIC2P
Analog
Microphone 2 positive input
34
MIC2N
Analog
Microphone 2 negative input
35
SPK1P
Analog
Speaker 1 positive output
37
SPK1N
Analog
Speaker 1 negative output
39
SPK2P
Analog
Speaker 2 positive output
41
SPK2N
Analog
Speaker 2 negative output
4.12.2. Microphone Features
The microphone can be connected in either differential or single-ended mode. However, it is strongly
recommended to use a differential connection in order to reject common mode noise and TDMA
noise. When using a single-ended connection, be sure to have a very good ground plane, very good
filtering, as well as shielding in order to avoid any disturbance on the audio path. Also note that using
a single-ended connection decreases the audio input signal by 6dB as compared to using a
differential connection.
The gain of both MIC inputs are internally adjusted and can be tuned using AT commands. For more
information on AT commands, refer to document [8] Firmware 7.43 AT Commands Manual (Sierra
Wireless Software Suite 2.33).
4.12.2.1.
MIC1 Microphone Input
By default, MIC1 input is single-ended, but can be configured in differential mode.
The MIC1 input does not include an internal bias making it the standard input for an external headset
or a hands-free kit. If an electret microphone is used, there must be external biasing that corresponds
with the characteristics of the electret microphone used.
AC coupling is already embedded in the Q2687 Refreshed embedded module.
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Figure 26.
Interfaces
MIC1 Equivalent Circuits
Refer to the following table for the electrical characteristics of MIC1.
Table 34:
Electrical Characteristics of MIC1
Parameter
Minimum
DC Characteristics
Typical
Maximum
N/A
AC Characteristics
200 Hz on the ~RESET signal.
Only a switch or an open drain gate is recommended.
Ct is the cancellation time required for the embedded module initialization. Ct is automatically carried
out after hardware reset.
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5.2.2.
Signals and Indicators
Pin Description
Refer to the following table for the pin description of the reset signal.
Table 53:
Reset Signal Pin Description
Pin
Number
Signal
I/O
I/O Type
Description
18
~RESET
I/O
Open
Drain
1V8
Embedded Module Reset
Refer to section 4.2 Electrical Information for Digital I/O for open drain, 2V8 and 1V8 voltage
characteristics and reset state definitions.
5.2.3.
Electrical Characteristics
Refer to the following table for the electrical characteristics of the reset signal.
Table 54:
Electrical Characteristics of the Reset Signal
Parameter
Minimum
Typical
Maximum
Unit
Input Impedance (R)*
100
k
Input Impedance (C)
10n
~RESET time (Rt)
200
20
~RESET time (Rt) at power up only
Cancellation time (Ct)
0.57
VIL
VIH
1.33
Internal pull-up
**
VH: Hysterisis Voltage
40
100
34
VH**
µs
ms
ms
0.57
This reset time is the minimum to be carried out on the ~RESET signal when the power supply is already
stabilized.
This reset time is internally carried out by the embedded module power supply supervisor only when the
embedded module power supplies are powered ON.
5.2.4.
Application
The ~RESET input (pin 18) is used to force a reset procedure by providing a LOW level for at least
200µs.
This signal has to be considered as an emergency reset only: a reset procedure is automatically
driven by an internal hardware during the power-ON sequence.
This signal can also be used to provide a reset to an external device (it then behaves as an output).
If no external reset is necessary this input can be left open.
If used (emergency reset), it has to be driven by an open collector or an open drain output (due to the
internal pull-up resistor embedded into the embedded module) as shown in the diagram below.
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Signals and Indicators
Figure 54.
Example of ~Reset Pin Connection with Switch Configuration
Figure 55.
Example of ~Reset Pin Connection with Transistor Configuration
An open collector or open drain transistor can be used. If an open collector is chosen, T1 can be a
ROHM DTC144EE.
Table 55:
Reset Settings
Reset Command
~Reset (Pin 18)
Operating Mode
Reset activated
Reset inactive
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5.3.
Signals and Indicators
BOOT Signal
A specific BOOT control pin is available to download to the Q2687 Refreshed embedded module (only
if the standard XMODEM download, controlled with AT command, is not possible).
A specific PC software program, provided by Sierra Wireless, is needed to perform this specific
download.
The BOOT pin must be connected to VCC_1V8 for this specific download.
Table 56:
BOOT Settings
BOOT
Operating Mode
Comment
Leave open
Normal use
No download
Leave open
Download XMODEM
AT command for Download AT+WDWL*
Download specific
Need Sierra Wireless PC software
Refer to document [8] Firmware 7.43 AT Commands Manual (Sierra Wireless Software Suite 2.33) for more
information about this AT command.
5.3.1.
Pin Description
Refer to the following table for the pin description of the Boot signal.
Table 57:
Boot Signal Pin Description
Pin
Number
Signal
I/O
I/O Type
Description
16
BOOT
1V8
Download mode selection
Refer to section 4.2 Electrical Information for Digital I/O for open drain, 2V8 and 1V8 voltage
characteristics and reset state definitions.
For more information about using AT commands to manipulate this signal, refer to document [8]
Firmware 7.43 AT Commands Manual (Sierra Wireless Software Suite 2.33).
Note that this BOOT pin must be left open for normal use or XMODEM download.
However, in order to render the development and maintenance phases easier, it is highly
recommended to set a test point, either a jumper or a switch on the VCC_1V8 (pin 5) power supply.
Figure 56.
Example of BOOT Pin Implementation
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5.4.
Signals and Indicators
BAT-RTC (Backup Battery)
The Q2687 Refreshed embedded module provides an input/output to connect a Real Time Clock
power supply.
This pin is used as a back-up power supply for the internal Real Time Clock. The RTC is supported by
the Q2687 Refreshed embedded module when VBATT is available, but a backup power supply is
needed to save date and time when VBATT is switched off (VBATT = 0V).
Figure 57.
Real Time Clock Power Supply
If RTC is not used, this pin can be left open. If VBATT is available, the back-up battery can be
charged by the internal 2.5V power supply regulator.
The back-up power supply can be provided by any of the following:

A super capacitor

A non-rechargeable battery

A rechargeable battery
5.4.1.
Pin Description
Refer to the following table for the pin description of the BAT-RTC interface.
Table 58:
BAT-RTC Pin Description
Pin
Number
Signal
I/O
I/O Type
Description
BAT-RTC
I/O
Supply
RTC Back-up supply
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5.4.2.
Signals and Indicators
Electrical Characteristics
Refer to the following table for the electrical characteristics of the BAT-RTC interface.
Table 59:
Electrical Characteristics of the BAT-RTC Interface
Parameter
Minimum
Input voltage
1.85
Input current consumption*
3.0
Output voltage
2.40
Output current
Typical
Maximum
Unit
3.0
3.3
3.6
µA
2.45
2.50
mA
Provided by an RTC back-up battery when the Q2687 Refreshed embedded module power supply is off
(VBATT = 0V).
5.4.3.
Application
5.4.3.1.
Figure 58.
Super Capacitor
RTC Supplied by a Gold Capacitor
The estimated range with a 0.47Farad gold capacitor is 25 minutes (minimum).
Note:
The gold capacitor maximum voltage is 2.5V.
5.4.3.2.
Figure 59.
Non-Rechargeable Battery
RTC Supplied by a Non-Rechargeable Battery
Diode D1 is mandatory to prevent the non-rechargeable battery from becoming damaged.
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The estimated range with an 85mAh battery is 800H (minimum).
5.4.3.3.
Figure 60.
Rechargeable Battery
RTC Supplied by a Rechargeable Battery
The estimated range with a 2mAh rechargeable battery is approximately 15H.
Caution: Ensure that the cell voltage is lower than 2.75V before battery cell assembly to avoid damaging the
Q2687 Refreshed embedded module.
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5.5.
Signals and Indicators
Buzzer Output
This digital output is controlled by a pulse-width modulation controller and is an open drain output.
This signal may only be used in the implementation of a buzzer. The buzzer can be directly connected
to this output signal and VBATT. The maximum current is 100mA (PEAK).
5.5.1.
Pin Description
Refer to the following table for the pin description of the buzzer output.
Table 60:
PWM/Buzzer Output Pin Description
Pin
Number
Signal
I/O
I/O Type
Reset State
Multiplexed With
15
BUZZER0
Open drain
Buzzer output
Refer to section 4.2 Electrical Information for Digital I/O for open drain, 2V8 and 1V8 voltage
characteristics and reset state definitions.
5.5.2.
Electrical Characteristics
Refer to the following table for the electrical characteristics of the buzzer output.
Table 61:
Electrical Characteristics of the Buzzer Output
Parameter
Condition
VOL on
IPEAK
Maximum
Unit
Iol = 100mA
0.4
VBATT = VBATTmax
100
mA
50000
Hz
Frequency
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5.5.3.
Signals and Indicators
Application
The maximum peak current for this interface is 100mA and the maximum average current is 40mA. A
transient voltage suppressor (TVS) diode, D1, must be added to the circuit as shown in the figure
below.
Figure 61.
Example of a Buzzer Implementation
Take note of the following when implementing a buzzer:

R1 must be chosen in order to limit the current at IPEAK max

C1 = 0 to 100nF (depending on the buzzer type)

D1 = BAS16 (example)
The BUZZ-OUT output can also be used to drive an LED as shown in the following figure:
Figure 62.
Example of an LED Driven by the Buzzer Output
The value of R1 should correspond with the characteristics of the LED (D1).
5.5.4.
Recommended Characteristics


Type
Impedance
:electro-magnetic
:7Ω to 30Ω

Sensitivity
:90dB SPL minimum @ 10cm

Current
:60mA to 90mA
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5.6.
Signals and Indicators
External Interrupt
The Q2687 Refreshed embedded module provides two external interrupt inputs with different
voltages. These interrupt inputs can be activated on the:

High to low level transition

Low to high level transition

Low to high and high to low level transitions
When used, the interrupt inputs must not be left open; and when they are not used, they must be
configured as GPIOs.
5.6.1.
Pin Description
Refer to the following table for the pin description of the external input/interrupt.
Table 62:
External Interrupt Pin Description
Pin
Number
Signal
I/O
I/O Type
Reset
State
Description
Multiplexed With
49
INT1
2V8
External Interrupt
GPIO25
50
INT0
1V8
External Interrupt
GPIO3
Refer to section 4.2 Electrical Information for Digital I/O for open drain, 2V8 and 1V8 voltage
characteristics and reset state definitions.
5.6.2.
Electrical Characteristics
Refer to the following table for the electrical characteristics of the external input/interrupt.
Table 63:
Electrical Characteristics of the External Input/Interrupt
Parameter
Minimum
VIL
INT1
VIH
5.6.3.
Unit
0.84
1.96
VIL
INT0
Maximum
0.54
VIH
1.33
Application
INT0 and INT1 are high impedance input types so it is important to set the interrupt input signals with
pull-up or pull-down resistors if they are driven by an open drain, an open collector or by a switch. If
the interrupt signals are driven by a push-pull transistor, then no pull-up or pull-down resistors are
necessary.
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Figure 63.
Example of INT0 Driven by an Open Collector
Figure 64.
Example of INT1 Driven by an Open Collector
Signals and Indicators
where:

The value of R1 can be 47kΩ

T1 can be a ROHM DTC144EE open collector transistor
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5.7.
Signals and Indicators
VCC_2V8 and VCC_1V8 Output
These digital power supply outputs are mainly used to:

Pull-up signals such as I/Os

Supply the digital transistors driving LEDs

Supply the SIMPRES signal

Act as a voltage reference for the ADC interface AUX-ADC (VCC_2V8 only)
Each digital output has a maximum current of 15mA.
Both VCC_2V8 and VCC_1V8 are only available when the embedded module is ON.
5.7.1.
Pin Description
Refer to the following table for the pin description of the VCC_2V8 and VCC_1V8 output.
Table 64:
VCC_2V8 and VCC_1V8 Pin Description
Pin
Number
Signal
I/O
I/O Type
Description
VCC_1V8
Supply
1.8V digital supply
10
VCC_2V8
Supply
2.8V digital supply
Refer to section 4.2 Electrical Information for Digital I/O for open drain, 2V8 and 1V8 voltage
characteristics and reset state definitions.
5.7.2.
Electrical Characteristics
Refer to the following table for the electrical characteristics of the VCC_2V8 and VCC_1V8 output
signals.
Table 65:
Electrical Characteristics of the VCC_2V8 and VCC_1V8 Signals
Parameter
VCC_2V8
VCC_1V8
Output voltage
Minimum
Typical
Maximum
Unit
2.74
2.8
2.86
15
mA
1.94
15
mA
Output Current
Output voltage
Output Current
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5.8.
Signals and Indicators
FLASH-LED (LED0)
The FLASH-LED is the GSM activity status indicator signal of the Q2687 Refreshed embedded
module and it can be used to drive an LED. This signal is an open drain output. An LED and a resistor
can be directly connected between this output and VBATT.
When the Q2687 Refreshed embedded module is OFF, if 2.8V < VBATT < 3.2V and a charger is
connected on the CHG-IN inputs, this output flashes (100 ms = ON; 900ms = OFF) to indicate the
pre-charging phase of the battery.
When the Q2687 Refreshed embedded module is ON, this output is used to indicate the network
status.
Table 66:
FLASH-LED Status
Q2687 State
VBATT Status
FLASH-LED Status
Q2687 Refreshed Embedded
Module Status
OFF
VBATT< 2.8V
or
VBATT > 3.2V
OFF
OFF
2.8V < VBATT < 3.2V
Pre-charge flash
LED ON for 100 ms, OFF
for 900 ms
OFF; Pre-charging mode
(charger must be connected on
CHG-IN to activate this mode)
VBATT > 3.2V
Permanent
ON; not registered on the network
Slow flash
LED ON for 200 ms, OFF
for 2 s
ON; registered on the network
Quick flash
LED ON for 200 ms, OFF
for 600 ms
ON; registered on the network,
communication in progress
Very quick flash
LED ON for 100ms, OFF
for 200ms
ON; software downloaded is either
corrupted or non-compatible ("BAD
SOFTWARE")
ON
5.8.1.
Pin Description
Refer to the following table for the pin description of the FLASH-LED.
Table 67:
FLASH-LED Pin Description
Pin
Number
Signal
I/O
I/O Type*
Reset State
Description
17
LED0
Open Drain
Output
1 and Undefined
LED driving
Refer to section 4.2 Electrical Information for Digital I/O for open drain, 2V8 and 1V8 voltage
characteristics and reset state definitions.
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Figure 65.
Signals and Indicators
LED0 State During RESET and Initialization Time
LED0 state is HIGH during the RESET time and undefined during the software initialization time.
During software initialization time, for a maximum of 2 seconds after RESET cancellation, the LED0
signal is toggling and does not provide the embedded module status. After the 2s period, the LED0
provides the true status of the embedded module.
5.8.2.
Electrical Characteristics
Refer to the following table for the electrical characteristics of the FLASH-LED signal.
Table 68:
Electrical Characteristics of the FLASH-LED Signal
Parameter
Maximum
Unit
VOL
0.4
IOUT
mA
5.8.3.
Figure 66.
Condition
Minimum
Typical
Application
Example of FLASH-LED Implementation
R1 can be harmonized depending on the characteristics of the LED (D1).
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Product Technical Specification and
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5.9.
Signals and Indicators
Analog to Digital Converter
Two Analog to Digital Converter inputs, BAT-TEMP/ADC1 and AUX-ADC/ADC2, are provided by the
Q2687 Refreshed embedded module. These converters are 10-bit resolution ADCs ranging from 0V
to 2V.
Typically, the BAT-TEMP/ADC1 input is used to monitor external temperature. This is very useful for
monitoring the application temperature and can be used as an indicator to safely power OFF the
application in case of overheating (for Li-Ion batteries). For more information on battery charging, refer
to section 4.14 Battery Charging Interface.
The AUX-ADC/ADC2 input can be used for customer specific applications.
5.9.1.
Pin Description
Refer to the following table for the pin description of the ADC.
Table 69:
ADC Pin Description
Pin
Number
Signal
I/O
I/O Type
Description
20
ADC1/BAT-TEMP*
Analog
A/D converter
21
ADC2
Analog
A/D converter
This input is reserved for the battery charging temperature sensor. For more information, refer to section 4.14
Battery Charging Interface.
5.9.2.
Electrical Characteristics
Refer to the following table for the electrical characteristics of the ADC.
Table 70:
Electrical Characteristics of the ADC
Parameter
Minimum
Maximum output code
Typical
Maximum
1635
LSBs
Sampling rate
Input signal range
Unit
138¹
sps
INL (Integral non linearity)
15
mV
DNL (Differential non linearity)
2.5
mV
Input impedance
ADC1/BAT-TEMP
1M*

ADC2
1M

Internal pull-up to 2.8V
Sampling rate only for ADC2 and the Sierra Wireless Software Suite application
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Signals and Indicators
5.10. Digital to Analog Converter
One Digital to Analog Converter output is provided by the Q2687 Refreshed embedded module. The
converter is an 8-bit resolution DAC, ranging from 0V to 2.3V.
5.10.1. Pin Description
Refer to the following table for the pin description of the DAC.
Table 71:
DAC Pin Description
Pin
Number
Signal
I/O
I/O Type
Description
82
DAC0
Analog
D/A converter
Note:
This output assumes a typical external load of 2k and 50pF in parallel to GND.
5.10.2. Electrical Characteristics
Refer to the following table for the electrical characteristics of the DAC.
Table 72:
Electrical Characteristics of the DAC
Parameter
Minimum
Resolution
Typical
Maximum
Output signal range
Output voltage after reset
Unit
bits
2.3
1.147
INL (Integral non linearity)
-5
+5
LSB
DNL (Differential non linearity)
-1
+1
LSB
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6. Power Consumption
The power consumption values of the Q2687 Refreshed embedded module vary depending on the
operating mode, RF band and software used (with or without the Sierra Wireless Software Suite). The
following power consumption values were obtained by performing measurements on Q2687
Refreshed embedded module samples at a temperature of 25°C with the assumption of a 50 RF
output.
Three VBATT values were used to measure the power consumption of the Q2687 Refreshed
Embedded Module:

VBATT = 3.2V


VBATT = 3.6V
VBATT = 4.8V
The average current and the maximum current peaks were also measured for all three VBATT values.
For a more detailed description of the operating modes, refer to the appendix of document [8]
Firmware 7.43 AT Commands Manual (Sierra Wireless Software Suite 2.33).
For more information on the consumption measurement procedure, refer to section 7 Consumption
Measurement Procedure.
6.1.
Power Consumption without the Sierra
Wireless Software Suite
The following measurement results are relevant when:



there is no Sierra Wireless Software Suite application
the Sierra Wireless Software Suite application is disabled
no processing is required by a Sierra Wireless Software Suite application
Note:
Power consumption performance is software related. The values listed below were based on
Firmware 7.43.
TX means
that the current peak is the RF transmission burst (Tx burst).
RX means
that the current peak is the RF reception burst (Rx burst).
Table 73:
Power Consumption Without the Sierra Wireless Software Suite; Typical Values
Operating
Mode
I Av erage
I Peak
Parameter
Unit
VBATT=3.2V
VBATT=3.6V
VBATT=4.8V
ALARM Mode
10.6
11.1
12.8
N/A
µA
SLEEP Mode
0.38
0.39
0.40
59.6
mA
ACTIVE Mode
48.3
44.0
35.8
66.4
mA
SLEEP mode
with telecom
stack in Idle
Mode *
Paging 9/Rx burst
occurrence ~2s
1.94
1.85
1.65
208
mA
Paging 2/Rx burst
occurrence ~0,5s
5.81
5.43
4.74
218
mA
ACTIVE mode
with telecom
stack in Idle
Mode
Paging 9/Rx burst
occurrence ~2s
23.5
21.9
19.0
147
mA
Paging 2/Rx burst
occurrence ~0,5s
24.5
23.4
20.1
149
mA
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Operating
Mode
Peak current in
GSM/GPRS
Mode
GSM Connected
Mode (Voice)
GPRS Transfer
Mode
class 10
(3Rx/2Tx)
EGPRS Transfer
Mode
class 10
(3Rx/2Tx)
Power Consumption
Parameter
I Av erage
I Peak
Unit
850/900 MHz PCL5/gam.3 (TX
power 33dBm)
1704
1591
1548
1704
mA
1800/1900 MHz PCL0/gam.3 (TX
power 30dBm)
1130
1101
1085
1130
mA
850/900 MHz PCL5 (TX power
33dBm)
263
246
233
1681
mA
850/900 MHz PCL19 (TX power
5dBm)
102
97
89
307
mA
1800/1900 MHz PCL0 (TX power
30dBm)
198
191
181
1120
mA
1800/1900 MHz PCL15 (TX power
0dBm)
98
94
85
271
mA
850/900 MHz gam.3 (TX power
30dBm)
453
423
406
1704
mA
850/900 MHz gam.6 (TX power
24dBm)
367
363
359
1420
mA
1800/1900 MHz gam.5 (TX power
23dBm)
312
307
299
1091
mA
Sleep Idle Mode consumption is dependent on the SIM card used. Some SIM cards respond faster than others;
the longer the response time, the higher the consumption.
6.2.
Power Consumption with the Sierra Wireless
Software Suite
The following consumption results were measured during the Dhrystone application run.
Note:
Power consumption performance is software related. The values listed in the tables below were based
on Firmware 7.43.
TX means
that the current peak is the RF transmission burst (Tx burst).
RX means
that the current peak is the RF reception burst (Rx burst).
Table 74:
Power Consumption With the Application CPU @ 26MHz, Typical Values
Operating
Mode
I Av erage
I Peak
Parameter
Unit
VBATT=3.2V
VBATT=3.6V
VBATT=4.8V
ALARM Mode
N/A
N/A
µA
SLEEP Mode
N/A
N/A
mA
ACTIVE Mode
45.4
89.7
mA
N/A
mA
SLEEP mode
with telecom
Paging 9/Rx burst
occurrence ~2s
WA_DEV_Q26RD_PTS_001
41.5
33.9
N/A
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Power Consumption
Operating
Mode
stack in Idle
Mode *
Parameter
I Av erage
I Peak
Unit
Paging 2/Rx burst
occurrence ~0,5s
N/A
N/A
mA
ACTIVE mode
with telecom
stack in Idle
Mode
Paging 9/Rx burst
occurrence ~2s
44.3
40.5
33.1
144
mA
Paging 2/Rx burst
occurrence ~0,5s
45.1
41.3
33.9
146
mA
850/900 MHz PCL5/gam.3 (TX
power 33dBm)
1727
1608
1559
1727
mA
1800/1900 MHz PCL0/gam.3 (TX
power 30dBm)
1138
1108
1095
1138
mA
850/900 MHz PCL5 (TX power
33dBm)
266
246
232
1719
mA
850/900 MHz PCL19 (TX power
5dBm)
100
95
87
301
mA
1800/1900 MHz PCL0 (TX power
30dBm)
196
189
180
1128
mA
1800/1900 MHz PCL15 (TX power
0dBm)
96
91
83
273
mA
850/900 MHz gam.3 (TX power
30dBm)
457
426
408
1727
mA
850/900 MHz gam.6 (TX power
24dBm)
321
320
328
1398
mA
1800/1900 MHz gam.5 (TX power
23dBm)
270
269
270
1081
mA
Peak current in
GSM/GPRS
Mode
GSM Connected
Mode (Voice)
GPRS Transfer
Mode
class 10
(3Rx/2Tx)
EGPRS Transfer
Mode
class 10
(3Rx/2Tx)
Table 75:
Power Consumption With the Application CPU @ 104MHz, Typical Values
Operating
Mode
I Av erage
I Peak
Parameter
Unit
VBATT=3.2V
ALARM Mode
N/A
SLEEP Mode
N/A
ACTIVE Mode
82.6
VBATT=3.6V
74.5
VBATT=4.8V
58.8
N/A
µA
N/A
mA
101.8
mA
SLEEP mode
with telecom
stack in Idle
Mode *
Paging 9/Rx burst
occurrence ~2s
N/A
N/A
mA
Paging 2/Rx burst
occurrence ~0,5s
N/A
N/A
mA
ACTIVE mode
with telecom
stack in Idle
Mode
Paging 9/Rx burst
occurrence ~2s
81.4
73.4
57.7
176
mA
Paging 2/Rx burst
occurrence ~0,5s
82.1
74.1
58.5
176
mA
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Operating
Mode
Peak current in
GSM/GPRS
Mode
GSM Connected
Mode (Voice)
GPRS Transfer
Mode
class 10
(3Rx/2Tx)
EGPRS Transfer
Mode
class 10
(3Rx/2Tx)
Power Consumption
Parameter
I Av erage
I Peak
Unit
850/900 MHz PCL5/gam.3 (TX
power 33dBm)
1764
1650
1590
1764
mA
1800/1900 MHz PCL0/gam.3 (TX
power 30dBm)
1178
1141
1121
1178
mA
850/900 MHz PCL5 (TX power
33dBm)
301
279
257
1763
mA
850/900 MHz PCL19 (TX power
5dBm)
135
127
111
344
mA
1800/1900 MHz PCL0 (TX power
30dBm)
232
221
204
1178
mA
1800/1900 MHz PCL15 (TX power
0dBm)
131
122
107
310
mA
850/900 MHz gam.3 (TX power
30dBm)
491
459
432
1764
mA
850/900 MHz gam.6 (TX power
24dBm)
352
351
354
1423
mA
1800/1900 MHz gam.5 (TX power
23dBm)
303
298
293
1109
mA
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7. Consumption Measurement
Procedure
This chapter describes the consumption measurement procedure used to obtain the Q2687
Refreshed Embedded Module consumption specification.
7.1.
Hardware Configuration
Consumption results are highly dependent on the hardware configuration used during measurement
and this section describes the hardware configuration settings that must be used to obtain optimum
consumption measurements.
The following hardware configuration includes both the measurement equipment used and the Q2687
Refreshed embedded module on the Q Series Development Kit board v3.
7.1.1.
Equipments Used
Four devices were used to perform consumption measurement:

Network Analyzer

Current Measuring Power Supply


Standalone Power Supply
Computer, to control the embedded module and to save measurement data
Figure 67.
Typical Hardware Configuration
The network analyzer is a CMU 200 from Rhode & Schwartz. This analyzer offers all
GSM/GPRS/EGPRS network configurations required and allows a wide range of network
configurations to be set.
The AX502 standalone power supply is used to supply all development kit board components except
the embedded module. The goal is to separate the development kit board consumption from the
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Consumption Measurement Procedure
embedded module consumption which is measured by the other power supply, the 66321B “current
measuring power supply”.
The “current measuring power supply” is also connected and controlled by the computer (GPIB
control not shown in the previous figure).
A SIM must be inserted in the Q Series Development Kit during all consumption measurements.
The following table lists the recommended equipments to use for the consumption measurement.
Table 76:
Recommended Equipments
Device
Manufacturer
Reference
Notes
Network analyzer
Rhode & Schwartz
CMU 200
Quad Band
GSM/DCS/GPRS/EGPRS
Current measuring power
supply
Agilent
66321B
Used for VBATT
Standalone power supply
Metrix
AX502
Used for VBAT
7.1.2.
Q Series Development Kit Board v3
The Q Series Development Kit Board v3 is used as a basis for the Q2687 Refreshed embedded
module measurements using several settings. For more information about these settings, refer to
document [15] AirPrime Q Series Development Kit User Guide.
The Q Series Development Kit board is powered by the standalone power supply VBAT; while the
Q2687 Refreshed embedded module is powered by the current measuring power supply, VBATT.
Because of this, the link between VBATT and VBAT (J103) must be opened (by removing the solder
at the top of the board in the SUPPLY area).

VBATT is powered by the current measuring power supply 66321B

VBAT is powered by the standalone power supply AX502
Also take note of the following additional configuration/settings:

The R100 resistor (around the BAT-TEMP connector) must be removed.

The UART2 link is not used; therefore, J501, J502, J503 and J504 must be opened (by
removing the solder).

UART2 R502 must be removed; R507 must be soldered with a 0Ω resistor.


The USB link is not used; therefore, J801, J802 and J803 must be opened (by removing the
solder).
UART1 R408 must be removed; R406 must be soldered with a 0Ω resistor.

The standalone power supply, VBAT, may be set to 4V.
The goal of the settings listed above is to eliminate all bias current from VBATT and to supply the
entire board (except the embedded module) using only VBAT.
Note:
7.1.3.
When measuring the current consumption in alarm mode, it is necessary to remove D100, D103 and
R103 from the Q Series Development Kit in order to have accurate results.
SIM Cards
Consumption measurement may be performed with either 3-Volt or 1.8-Volt SIM cards. However, all
specified consumption values are for a 3-Volt SIM card.
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Note:
Consumption Measurement Procedure
The SIM card’s voltage is supplied by the embedded module’s power supply. Consumption
measurement results may vary depending on the SIM card used.
7.2.
Software Configuration
The software configuration for the equipment(s) used and the Q2687 Refreshed embedded module
settings are presented in the following sub-sections.
7.2.1.
Embedded Module Configuration
The software configuration for the embedded module is done by selecting the operating mode to use
in performing the measurement.
A description of the operating modes and the procedures used to change the operating mode are
given in the appendix of document [8] Firmware 7.43 AT Commands Manual (Sierra Wireless
Software Suite 2.33).
The available operating modes in the Q2687 Refreshed embedded module are as follows:

Alarm Mode

Active Idle Mode


Sleep Idle Mode
Active Mode

Sleep Mode

Connected Mode


Transfer Mode class 8 (4Rx/1Tx)
Transfer Mode class 10 (3Rx/2Tx)
7.2.2.
Equipment Configuration
The network analyzer is set according to the embedded module’s operating mode.
Paging during Idle modes, TX burst power, RF band and GSM/DCS/GPRS/EGPRS may be selected
on the network analyzer.
Refer to the following table for the network analyzer configuration according to operating mode.
Table 77:
Operating Mode Configuration
Operating Mode
Network Analyzer Configuration
ALARM Mode
N/A
SLEEP Mode
N/A
ACTIVE Mode
N/A
SLEEP mode with telecom stack in Idle Mode
ACTIVE mode with telecom stack in Idle Mode
Paging 2/Rx burst occurrence ~0,5s
Paging 9/Rx burst occurrence ~2s
Paging 2/Rx burst occurrence ~0,5s
850/900 MHz - PCL5/gam.3 (TX power 33dBm)
Peak current in GSM/GPRS Mode
1800/1900 MHz - PCL0/gam.3 (TX power 30dBm)
850/900 MHz - PCL5 (TX power 33dBm)
GSM Connected Mode (Voice)
WA_DEV_Q26RD_PTS_001
Paging 9/Rx burst occurrence ~2s
850/900 MHz - PCL19 (TX power 5dBm)
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Operating Mode
Consumption Measurement Procedure
Network Analyzer Configuration
1800/1900 MHz - PCL0 (TX power 30dBm)
1800/1900 MHz - PCL15 (TX power 0dBm)
GPRS Transfer Mode class 10 (3Rx/2Tx)
EGPRS Transfer Mode class 10 (3Rx/2Tx)
850/900 MHz - gam.3 (TX power 30dBm)
850/900 MHz - gam.6 (TX power 24dBm)
1800/1900 MHz - gam.5 (TX power 23dBm)
The standalone power supply, VBAT, may be set from 3.2V to 4.8V.
The current measuring power supply, VBATT, may be set from 3.2V to 4.8V according to the Q2687
Refreshed embedded module VBATT specifications.
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8. Reliability Compliance and
Recommended Standards
8.1.
Reliability Compliance
The Q2687 Refreshed embedded module connected on a development kit board application is
compliant with the following requirements.
Table 78:
Standards Conformity for the Q2687 Refreshed Embedded Module
Abbreviation
Definition
IEC
International Electro technical Commission
ISO
International Organization for Standardization
8.2.
Applicable Standards Listing
The table hereafter gives the basic list of standards applicable to the Q2687 Refreshed Embedded
Module.
Note:
References to any features can be found from these standards.
Table 79:
Applicable Standards and Requirements
Document
Current
Version
Title
IEC6006826
7.0
Environmental testing - Part 2.6: Test FC: Sinusoidal Vibration.
IEC60068234
73
Basic environmental testing procedures part 2: Test FD: random vibration
wide band - general requirements
Cancelled and replaced by IEC60068-2-64. For reference only.
IEC60068264
2.0
Environmental testing - part 2-64: Test FH: vibration, broadband random and
guidance.
IEC60068232
2.0
Basic environmental testing procedures - part 2: Test ED: (procedure 1)
(withdrawn & replaced by IEC60068-2-31).
IEC60068231
2.0
Environmental testing part 2-31: Test EC: rough handling shocks, primarily
for equipment-type specimens.
IEC60068229
2.0
Basic environmental testing procedures - part 2: Test EB and guidance:
bump
Withdrawn and replaced by IEC60068-2-27. For reference only.
IEC60068227
4.0
Environmental testing - part 2-27: Test EA and guidance: shock.
IEC60068214
6.0
Environmental testing - part 2-14: Test N: change of temperature.
IEC6006822
5.0
Environmental testing - part 2-2: Test B: dry heat.
IEC6006821
6.0
Environmental testing - part 2-1: Test A: cold.
IEC60068230
3.0
Environmental testing - part 2-30: Test DB: damp heat, cyclic (12 h + 12 h
cycle).
IEC6006823
69 w/A1
Basic environmental testing procedures part 2: Test CA: damp heat, steady
State
Withdrawn and replaced by IEC60068-2-78. For reference only.
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Product Technical Specification and
Customer Design Guideline
Reliability Compliance and
Recommended Standards
Document
Current
Version
Title
IEC60068278
1.0
Environmental testing part 2-78: Test CAB: damp heat, steady state.
IEC60068238
2.0
Environmental testing - part 2-38: Test Z/AD: composite
temperature/humidity cyclic test.
IEC60068240
1.0 w/A1
Basic environmental testing procedures - part 2: Test Z/AM combined
cold/low air pressure tests.
ISO167501
2ND
Road vehicles - environmental conditions and testing for electrical and
electronic equipment - part 1: general.
ISO167502
2ND
Road vehicles - environmental conditions and testing for electrical and
electronic equipment - part 2: electrical loads.
ISO167503
2ND
Road vehicles - environmental conditions and testing for electrical and
electronic equipment - part 3: mechanical loads.
ISO167504
2ND
Road vehicles - environmental conditions and testing for electrical and
electronic equipment - part 4: climatic loads.
IEC60529
2.1 w/COR2
Degrees of protection provided by enclosures (IP code).
IEC60068217
4.0
Basic environmental testing procedures - part 2: Test Q: sealing.
IEC60068218
2.0
Environmental testing - part 2-18: Tests - R and guidance: water.
IEC60068270
1.0
Environmental testing - part 2: tests - test XB: abrasion of markings and
letterings caused by rubbing of fingers and hands.
IEC60068268
1.0
Environmental testing - part 2: tests - test l: dust and sand.
IEC60068211
3.0
Basic environmental testing procedures, part 2: test KA: salt mist.
IEC60068260
2.0
Environmental testing - part 2: Test KE: flowing mixed gas corrosion test.
IEC60068252
2.0 w/COR
Environmental testing - part 2: Test KB: salt mist, cyclic (sodium chloride
solution).
8.3.
Environmental Specifications
The Q2687 Refreshed embedded module is compliant with the operating classes listed in the table
below. The ideal temperature range of the environment for each operating class is also specified.
Table 80:
Operating Class Temperature Range
Conditions
Temperature Range
Operating / Class A
-30 °C to +70°C
Operating / Class B
-40 °C to +85°C
Storage
-40 °C to +80°C
8.3.1.
Function Status Classification
The classes reported below comply with the Annex “ISO Failure Mode Severity Classification”, ISO
Standard 7637, and Section 1.
Note:
The word “function” as used here concerns only the function performed by the Q2687 Refreshed
embedded module.
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Table 81:
Reliability Compliance and
Recommended Standards
ISO Failure Mode Severity Classification
Class
Definition
CLASS A
The Q2687 Refreshed Embedded Module remains fully functional during and after
environmental exposure; and shall meet the minimum requirements of 3GPP or appropriate
wireless standards.
CLASS B
The Q2687 Refreshed Embedded Module remains fully functional during and after
environmental exposure; and shall exhibit the ability to establish a voice, SMS or DATA call
at all times even when one or more environmental constraint exceeds the specified
tolerance. Unless otherwise stated, full performance should return to normal after the
excessive constraint(s) have been removed.
8.4.
Reliability Prediction Model
8.4.1.
Life Stress Tests
The following tests the Q2687 Refreshed embedded module’s product performance.
Table 82:
Life Stress Tests
Designation
Performance Test
PT3T° & PT
Condition
Standard: N/A
Special conditions:

Temperature:
 Class A: -30°C to +70°C
 Class B: -40°C to +85°C

Rate of temperature change: ± 3°C/min

Recovery time: 3 hours
Operating conditions: Powered
Duration: 14 days
Durability Test
DT
Standard: IEC 60068-2-2, Test Bb
Special conditions:

Temperature: +80°C


Rate of temperature change: ± 3°C/min
Recovery time: 3 hours
Operating conditions: Powered and Un-powered
Duration: 156 days
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8.4.2.
Reliability Compliance and
Recommended Standards
Environmental Resistance Stress Tests
The following tests the Q2687 Refreshed embedded module’s resistance to extreme temperature.
Table 83:
Environmental Resistance Stress Tests
Designation
Cold Test
COT
Condition
Standard: IEC 680068-2-1, Test Ab
Special conditions:

Temperature: -40°C

Rate of temperature change: dT/dt >= ± 3°C/min

Recovery time: 3 hours
Operating conditions: Un-powered
Duration: 72 hours
Standard: IEC 680068-2-2, Test Bb
Resistance to Heat Test
RH
Special conditions:

Temperature: +80°C

Rate of temperature change: dT/dt >= ± 3°C/min

Recovery time: 3 hours
Operating conditions: The DUT is switched ON for 1 minute and then OFF for
1 minute
Duration: 60 days
Dry Heat Test
DHT
Standard: IEC 680068-2-2, Test Bb
Special conditions:

Temperature: +80°C

Rate of temperature change: dT/dt >= ± 3°C/min
Recovery time: 3 hours

Operating conditions: Un-powered
Duration: 60 days
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8.4.3.
Reliability Compliance and
Recommended Standards
Corrosive Resistance Stress Tests
The following tests the Q2687 Refreshed embedded module’s resistance to corrosive atmosphere.
Table 84:
Corrosive Resistance Stress Tests
Designation
Condition
Humidity Test
HT
Standard: IEC 60068-2-3
Special conditions:

Temperature: +65°C

RH: 95%

Rate of temperature change: dT/dt >= ± 3°C/min

Recovery time: 3 hours
Operating conditions: The DUT is switched ON for 5 minutes and then OFF for
15 minutes
Duration: 10 days
Standard: IEC 60068-2-30, Test Db
Moist Heat Cyclic Test
MHCT
Special conditions:

Upper temperature: +55 ± 2°C

Lower temperature: +25°C ± 2°C


RH:
 Upper temperature: 93%
 Lower temperature: 95%
Number of cycles: 21 (1 cycle/24 hours)

Rate of temperature change: dT/dt >= ± 3°C/min

Recovery time: 3 hours
Operating conditions: Un-powered
Duration: 21 days
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8.4.4.
Reliability Compliance and
Recommended Standards
Thermal Resistance Cycle Stress Tests
The following tests the Q2687 Refreshed embedded module’s resistance to extreme temperature
cycling.
Table 85:
Thermal Resistance Cycle Stress Tests
Designation
Condition
Standard: IEC 60068-2-14
Special conditions:
Thermal Shock Test
TSKT

Upper temperature: +85°C

Lower temperature: -40°C

Rate of temperature change: 30s

Number of cycles: 200

Duration of exposure: 30 minutes

Recovery time: 3 hours
Operating conditions: Un-powered
Duration: 72 hours
Standard: IEC 60068-2-14, Test Nb
Temperature Change
TCH
Special conditions:

Upper temperature: +85°C

Lower temperature: -40°C

Rate of temperature change: dT/dt >= ± 3°C/min

Number of cycles: 400

Duration of exposure: 30 minutes

Recovery time: 3 hours
Operating conditions: Un-powered
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8.4.5.
Reliability Compliance and
Recommended Standards
Mechanical Resistance Stress Tests
The following tests the Q2687 Refreshed embedded module’s resistance to vibrations and
mechanical shocks.
Table 86:
Mechanical Resistance Stress Tests
Designation
Condition
Standard: IEC 60068-2-6, Test Fc
Special conditions:
Sinusoidal Vibration Test
SVT1

Frequency range: 10Hz to 1000Hz
 Displacement: ±5mm (peak)

Frequency range: 16Hz to 62Hz
 Acceleration: 5G

Frequency range: 62Hz to 200Hz
 Acceleration: 3G
Frequency range: 200Hz to 1000Hz
 Acceleration: 1G


Sweep rate: 1 oct/min.

Test duration: 20 cycles

Sweep directions: X, Y and Z
Operating conditions: Un-powered
Duration: 72 hours
Standard: IEC 60068-2-64
Special conditions:
Random Vibration Test
RVT

Density spectrum: 0.96m2/s3

Frequency range:
 0.1 g2/Hz at 10Hz
 0.01 g2/Hz at 250Hz
 0.0005 g2/Hz at 1000Hz
 0.0005 g2/Hz at 2000Hz

Slope: -3dB/octave

Acceleration: 0.9gRMS

Number of axis: 3
Operating conditions: Un-powered
Duration: 16 hours
Mechanical Shock Test
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Reliability Compliance and
Recommended Standards
Designation
Condition
MST
Special conditions:

Shock Test 1:

Wave form: Half sine


Peak acceleration: 30G
Duration: 11ms

Number of shocks: 8 per direction
Number of directions: 6 (±X, ±Y, ±Z)


Shock Test 2:
 Wave form: Half sine
 Peak acceleration: 200G
 Duration: 3ms
 Number of shocks: 3 per direction

Number of directions: 6 (±X, ±Y, ±Z)

Shock Test 3:
 Wave form: Half sine
 Peak acceleration: 100G
 Duration: 6ms
 Number of shocks: 3 per direction

Number of directions: 6 (±X, ±Y, ±Z)
Operating conditions: Un-powered
Duration: 72 hours
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8.4.6.
Reliability Compliance and
Recommended Standards
Handling Resistance Stress Tests
The following tests the Q2687 Refreshed embedded module’s resistance to handling malfunctions
and damage.
Table 87:
Handling Resistance Stress Tests
Designation
Condition
ESD Test
Standard: IEC 1000-4-2
Special conditions:

Contact discharges: 10 positive and 10 negative applied

Voltage: ±2kV, ±4kV, ±6kV
Operating conditions: Powered
Duration: 24 hours
Free Fall Test
FFT
Standard : IEC 60068-2-32, Test Ed
Special conditions:

Drop: 2 samples for each direction

Equivalent drop height: 1m

Number of directions: 6 (±X, ±Y, ±Z)

Number of drops/face: 2
Operating conditions: Un-powered
Duration: 24 hours
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9. Design Guidelines
This section provides general design guidelines for the Q2687 Refreshed embedded module.
General Rules and Constraints
Clock and other high frequency digital signals (e.g. serial buses) should be routed as far as possible
from the Q2687 Refreshed embedded module analog signals.
If the application design makes it possible, all analog signals should be separated from digital signals
by a ground line on the PCB.
Tip:
It is recommended to avoid routing any signals under the embedded module on the application board.
9.1.
Power Supply
The power supply is one of the key issues in the design of a GSM terminal.
A weak power supply design could, in particular, affect:

EMC performance

The emission spectrum

The phase error and frequency error
When designing the power supply, careful attention should be paid to the following:

The quality of the power supply – low ripple, PFM or PSM systems should be avoided; linear
regulation or PWM converters are preferred for low noise.

The capacity to deliver high current peaks in a short time (pulsed radio emission).

The VBATT line must support peak currents with an acceptable voltage drop which
guarantees a minimal VBATT value of 3.2V (lower limit of VBATT).
For PCB design constraints related to power supply tracks, ground planes and shielding, refer to
section 9.2 Routing Constraints.
9.2.
Antenna
Another key issue in the design of a GSM terminal is the mechanical and electrical antenna
adaptation. Sierra Wireless strongly recommends working with an antenna manufacturer either to
develop an antenna adapted to the application or to adapt an existing solution to the application.
For more information on routing constraints for the RF circuit, refer to section 9.2.5 RF Circuit.
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Design Guidelines
9.1. Layout/Pads Design
Figure 68.
Layout Requirement
It is strongly recommended to use through-hole pads for the 4 legs of the Q2687 Refreshed
embedded module. If the holes are connected internally to the ground plane, use thermal brakes.
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Figure 69.
Design Guidelines
Precidip Connector Pad Design (Sierra Wireless Side)
9.2. Routing Constraints
9.2.1.
System Connector
Refer to section 11.1 General Purpose Connector for references to the 100-pin GPC. More
information is also available at http://www.naisweb.com/e/connecte/con_eng/.
9.2.2.
Power Supply
Since the maximum peak current can reach 2A, Sierra Wireless strongly recommends having a large
width for the layout of the power supply signal (to avoid voltage loss between the external power
supply and the Q2687 Refreshed embedded module supply).
Pins 1, 2, 3 and 4 of the embedded module should be gathered in the same piece of copper, as
shown in the figure below.
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Figure 70.
Design Guidelines
Power Supply Routing Example
Filtering capacitors near the Q2687 Refreshed embedded module power supply are also
recommended (22µF to 100µF).
Attention should be paid to the ground track or the ground plane on the application board for the
power supply which supplies the embedded module. The ground track or the ground plane on the
application board must support current peaks as well as with the VBATT track.
If the ground track between the embedded module and the power supply is a ground plane, it must
not be parceled out.
The routing must be done in such a way that the total line impedance could be  10m @ 217Hz.
This impedance must include the bias impedances.
The same care should be taken when routing the ground supply.
If these design rules are not followed, phase error (peak) and power loss could occur.
In order to test the supply tracks, a burst simulation circuit is given below. This circuit simulates burst
emissions, equivalent to bursts generated when transmitting at full power.
Figure 71.
Burst Simulation Circuit
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9.2.2.1.
Design Guidelines
Ground Plane and Shielding Connection
The Q2687 Refreshed embedded module shielding case is linked to the ground. The ground has to
be connected to the Q Series Development Kit board through a complete layer on the PCB.
A ground plane must be available on the application board to provide efficient connection to the
Q2687 Refreshed embedded module shielding. The bottom side shielding of the Q2687 Refreshed
embedded module is achieved through the top folded tin cover connected to the internal ground plane
of the Q2687 Refreshed embedded module. This is connected through the shielding to the application
ground plane.
The best shielding performance is achieved when the application ground plane is a complete layer of
the application PCB. To ensure good shielding of the Q2687 Refreshed embedded module, a
complete ground plane layer on the application board must be available, with no trade-offs.
Connections between other ground planes should be done with bias.
Without this ground plane, external spurious TX or RX blockings could appear.
9.2.3.
SIM Interface
The length of the tracks between the Q2687 Refreshed embedded module and the SIM socket should
be as short as possible. Maximum recommended length is 10cm.
ESD protection is mandatory on the SIM lines if access from outside of the SIM socket is possible.
The capacitor on SIM_VCC signal (100nF) must be placed as close as possible to the DALC208SC6
component on the PCB (refer to section 4.9 SIM Interface).
9.2.4.
Audio Circuit
To get better acoustic performances, the basic recommendations are as follows:

The speaker lines (SPKxx) must be routed in parallel without any wires in between

The microphone lines (MICxx) must be routed in parallel without any wires in between
All the filtering components (RLC) must be placed as close as possible to the associated MICxx and
SPKxx pins.
9.2.5.
RF Circuit
If RF signals need to be routed on the application board, the RF signals must be routed using tracks
with a 50 characteristic impedance.
Basically, the characteristic impedance depends on the dielectric, the track width and the ground
plane spacing.
In order to respect this constraint, Sierra Wireless recommends using MicroStrip or StripLine structure
and computing the Tracks width with a simulation tool (like AppCad shown in the Figure below and
that is available free of charge at http://www.agilent.com).
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Figure 72.
Design Guidelines
AppCad Screenshot for MicroStrip Design
If a multi-layered PCB is used, the RF path on the board must not cross any signal (digital, analog or
supply).
If necessary, use StripLine structure and route the digital line(s) “outside” the RF structure as shown
in the figure below.
Figure 73.
Routing Examples
Stripline and Coplanar design requires having a correct ground plane at both sides. Consequently, it
is necessary to add some bias along the RF path.
It is recommended to use Stripline design if the RF path is fairly long (more than 3cm), since
MicroStrip design is not shielded. Consequently, the RF signal (when transmitting) may interfere with
neighboring electronics (AF amplifier, etc.). In the same way, the neighboring electronics (microcontrollers, etc.) may degrade the reception performances.
The GSM/GPRS connector is intended to be directly connected to a 50Ω antenna and no matching is
needed.
If the GSM/GPRS/EGPRS RF connections need to be implemented on the application board (for
mechanical purposes, for instance), there are four main possible connections:


via UFL/SMA connector
via Coaxial cable
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
Design Guidelines
via Precidip connector
9.2.5.1.
UFL/SMA Connector
The antenna can be connected to the Q2687 Refreshed embedded module through the UFL
connector present on the embedded module by inserting the plug in the receptacle. This step is done
prior to the Q2687 Refreshed embedded module mounting.
Figure 74.
UFL/SMA Connector
9.2.5.2.
Coaxial Cable
The antenna can also be connected to the Q2687 Refreshed embedded module through a coaxial
cable. The coaxial cable is connected to both the “RF pad” (Round pad) and the “Ground pad”. It is
recommended to use an RG178 coaxial cable with the following characteristics:

Static curvature radius
:10mm

Dynamic curvature radius
:20mm
The cable must be soldered as follows:

The shielding of the antenna cable must be soldered on the “Ground pad”.

The antenna cable core must be soldered only once positioned in line with the “RF pad” and
“Ground pad”.
Tip:
It is highly recommended to use a template to adjust the antenna cable to the “RF pad” and “Ground
pad” before soldering.
When soldering the antenna cable, the temperature of the iron must not exceed 350°C for 3 seconds.
Note:
The coaxial cable can be soldered in any direction. It can also be soldered on the “opposite direction”.
In this case, it is necessary to solder it in a curve.
This step is done after the Q2687 Refreshed embedded module mounting.
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Figure 75.
9.2.5.3.
Design Guidelines
Antenna Connection to both RF pad and Ground pad
Precidip Connector
Lastly, the Q2687 Refreshed embedded module can also be connected through the Precidip
connecter. For more information on the contact pad available on the Q2687 Refreshed embedded
module, refer to section 9.1 Layout/Pads Design.
For more information on the mounting, assembling and handling of this component, contact your
Precidip supplier directly (Preci-dip SA at http://www.precidip.com). Sierra Wireless cannot support
customers regarding the use of this connector.
Figure 76.
Precidip Connector
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9.3.
Design Guidelines
EMC and ESD Recommendations
EMC tests have to be performed on the application as soon as possible to detect any potential
problems.
When designing, special attention should be paid to:

Possible spurious emissions radiated by the application to the RF receiver in the receiver
band

ESD protection is mandatory on all signals which are externally accessible
 Typically, ESD protection is mandatory for the:
SIM (if accessible from outside)
Serial link

Length of the SIM interface lines (preferably <10cm)


EMC protection on audio input/output (filters against 900MHz emissions)
Biasing of the microphone inputs

Ground plane: Sierra Wireless recommends a common ground plane for analog/digital/RF
grounds

A metallic case or plastic casing with conductive paint are recommended, except area around
the antenna
Note:
9.4.
The Q2687 Refreshed embedded module does not include any protection against over voltage.
Mechanical Integration
Attention should be paid to:

Antenna cable integration (bending, length, position, etc)

Leads of the Embedded Module to be soldered to the Ground plane
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9.5.
Design Guidelines
Operating System Upgrade
The Q2687 Refreshed Embedded Module Operating System is stored in flash memory and can be
easily upgraded.
Important:
In order to follow regular changes in the GPRS standard and to offer a state-of-the-art operating
system, Sierra Wireless recommends that the application designed around an Embedded Module
(or Embedded Module–based product) should allow easy operating system upgrades on the
Embedded Module via the standard XMODEM protocol. Therefore, the application shall either allow
a direct access to the Embedded Module serial link through an external connector or implement any
mechanism allowing the Embedded Module operating system to be downloaded via XMODEM.
The operating system file can be downloaded to the embedded module using the XMODEM protocol.
The AT+WDWL command allows the downloading process to be launched. For more details, refer to
document [8] Firmware 7.43 AT Commands Manual (Sierra Wireless Software Suite 2.33).
The serial signals required to proceed with XMODEM downloading are:

RXD

TXD

RTS

CTS

GND
The Operating System file can also be downloaded to the embedded module using the DOTA
(download over the air) feature. This feature is available with the Sierra Wireless Software Suite
interface. For more details, refer to the list of documents in section 13.2 Reference Documents.
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10. Embedded Testability
10.1. Serial Link Access
Direct access to UART1 serial link is very useful for:

Testability operations

Firmware download (for more information on firmware upgrade, refer to section 3.3 Firmware
Upgrade)
To allow that access, the following serial link access design is recommended:
Figure 77.
Main Serial Link (UART1) Debug Access
When it is necessary to download firmware into the Q2687 Refreshed embedded module without
going through the RS232 interface, access to the embedded module is forced via the debug
connector. In such cases, input signals coming from this connector masks the input signals coming
from the ADM3307 device.
VCC_2V8 and GND are available on the debug connector to allow the powering of an external RS232
transceiver in order to communicate with a PC via a COM (COM1 or COM2) port, for example.
It is also possible to trace the signals on the serial link through the debug connector.
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Note:
Embedded Testability
R4 is used to have the possibility to disable the R1OUT, R2OUT and R3OUT of the ADM3307 by the
enable signal (~EN) when the debug connector is used. For debug connector use, TP6 must be
connected to VCC_2V8. For normal use, TP6 must be left open.
An economical solution consists of making the debug connection using 7 test points (TP) and placing
these points on the edge of the application board.
Caution: If communications on UART1 above the baud rate of 720kbps is needed, an external power supply
source (3.0V typical) should be used.
10.2. RF Output Accessibility
During the integration phase of the Q2687 Refreshed embedded module, it can be helpful to connect
the Q2687 Refreshed embedded module to a GSM/GPRS simulator in order to check critical RF TX
parameters and power behaviour.
Although the Q2687 Refreshed embedded module has been certified, some parameters may have
degraded due to some basic precautions not having been followed (poor power supply, for example).
This will not affect the functionality of the product, but the product will not comply with GSM
specifications.
The following TX parameters can be checked using a GSM/GSM simulator:

Phase & Frequency Error

Output Power and GSM Burst Time

Output Spectrum (Modulation and Switching)
Listed below are available typical GSM/GPRS simulators:

CMU200 from Rhode & Schwarz

8960 from Agilent
Because of the high prices associated with GSM/GPRS simulators and the necessary GSM knowhow to perform simulations, customers can check their applications in the Sierra Wireless
laboratories. Contact the Sierra Wireless support team for more information.
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11. Connector and Peripheral Device
References
This section contains a list of recommended manufacturers or suppliers for the peripheral devices to
be used with the Q2687 Refreshed embedded module.
11.1. General Purpose Connector
The GPC is a 100-pin connector with 0.5mm pitch from the from PANASONIC Group's P5K series,
with the following reference:

AXK600347BN1
The mating connector has the following reference:

AXK500147BN1J
The stacking height is 3.0 mm.
Sierra Wireless recommends that the AXK500147BN1J connector is used for applications to benefit
from Sierra Wireless prices. For more information, contact Sierra Wireless and specify the Sierra
Wireless connector reference: WM18868.
For further details see the GPC data sheets in the appendix. More information is also available from
http://www.panasonic.com/host/industrl.html.
11.2. SIM Card Reader

ITT CANNON CCM03 series (see http://www.ittcannon.com)


AMPHENOL C707 series (see http://www.amphenol.com)
JAE (see http://www.jae.com)
Drawer type:

MOLEX (see http://www.molex.com)
 Connector: MOLEX 99228-0002
 Holder: MOLEX 91236-0002
11.3. Microphone
The microphone selected must comply with GSM recommendations in terms of frequency response.
Possible suppliers:

HOSIDEN (see http://www.hosiden.co.jp/)

PANASONIC (see http://www.panasonic/com/industrial/components/)

PEIKER
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Connector and Peripheral Device
References
11.4. Speaker
The speaker selected must comply with GSM recommendations in terms of frequency response.
Possible suppliers:

SANYO (see http://www.sanyo.com/industrial/components/)

HOSIDEN (see http://www.hosiden.co.jp/)

PRIMO (see http://www.primo.com.sg/)

PHILIPS (see http://www.semiconductors.philips.com/)
11.5. Antenna Cable
A wide variety of cables fitted with UFL connectors is offered by HIROSE (refer to the UFL datasheet
in document [14] AirPrime Q2687 Product Technical Specification for more information):

UFL pigtails, Ex: Ref = U.FL-2LP(V)-04-A-(100)

UFL Ref = U.FL-R-SMT


UFL cable assemblies,
Between series cable assemblies.
More information is also available from http://www.hirose-connectors.com/.
A coaxial cable can also be soldered on the RF pad. The following references have been certified for
mounting on the Q2687 Refreshed embedded module:

RG178

RG316
11.6. RF board-to-board connector
The supplier for the Precidip connector is Preci-dip SA (see http://www.precidip.com), with the
following reference:

9PM-SS-0003-02-248//R1
11.7. GSM antenna
GSM antennas and support for antenna adaptation can be obtained from manufacturers such as:

ALLGON (see http://www.allgon.com)


IRSCHMANN (see http://www.hirschmann.com/)
MOTECO (see http://www.moteco.com)

GALTRONICS (see http://www.galtronics.com)
The following table lists the contact details for other GSM antenna providers.
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Product Technical Specification and
Customer Design Guideline
Table 88:
Connector and Peripheral Device
References
Contact Information of GSM Antenna Providers
Provider
Reference
Address
Contact
Mat Equipment
MA112VX00
Z.I. La Boitardière
Chemin du Roy
37400 Amboise
FRANCE
Laurent.LeClainche@mat
equipement.com
Tel: +33 2 47 30 69 70
Fax: +33 2 47 57 35 06
ProComm
MU 901/1801/UMTS-MMS
2M FME
Europarc
121, Chemin des Bassins
F-94035 CRETEIL CEDEX
Tel: +33 1 49 80 32 00
Fax: +33 1 49 80 12 54
procom@procom.fr
11.8. Buzzer
One possible Buzzer supplier is:

SAMBU (see http://www.sambuco.co.kr)
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12. Certification Compliance and
Recommended Standards
12.1. Certification Compliance
The Q2687 Refreshed Embedded Module connected on a development kit board application is
compliant with the following requirements.
Table 89:
Standards Conformity for the Q2687 Refreshed Embedded Module
Domain
Applicable Standard
Safety standard
EN 60950-1 (ed.2006)
Health standard (EMF Exposure Evaluation)
EN 62311 (ed. 2008)
Efficient use of the radio frequency spectrum
EN 301 511 (V 9.0.2)
EMC
EN 301 489-1 (v1.8.1)
EN 301 489-7 (v1.3.1)
FCC
FCC Part 15
FCC Part 22, 24
IC
RSS-132 Issue 2
RSS-133 Issue 5
12.2. Applicable Standards Listing
The table hereafter gives the basic list of standards applicable for the Q2687 Refreshed Embedded
Module (2G (R99/Rel. 4)).
Note:
References to any features can be found from these standards.
Table 90:
Applicable Standards and Requirements for the Q2687 Refreshed Embedded Module
Document
Current
Version
Title
GCF
3.37.0
GSM Certification Forum - Certification Criteria
NAPRD.03
5.2
Overview of PCS Type certification review board (PTCRB) Mobile Equipment
Type Certification and IMEI control
9.0.1
3rd Generation Partnership Project; Technical Specification Group GSM/EDGE
Radio Access Network; Digital cellular telecommunications system (Phase 2+);
Mobile Station (MS) conformance specification; Part 1: Conformance
specification
9.0.1
3rd Generation Partnership Project; Technical Specification Group GSM/EDGE
Radio Access Network; Mobile Station (MS) conformance specification; Part 2:
Protocol Implementation Conformance Statement (PICS) proforma specification
4.14.1
3rd Generation Partnership Project; Technical Specification Group GSM/EDGE
Radio Access Network; Digital cellular telecommunications system (Phase 2+);
Mobile Station (MS) conformance specification; Part 4: SIM Application Toolkit
Conformance specification
9.0.2
Global System for Mobile Communications (GSM); Harmonised standard for
mobile stations in the GSM 900 and DCS 1800 bands covering essential
requirements under article 3.2 of the R&TTE directive (1999/5/EC)
TS 51.010-1
TS 51.010-2
TS 51.010-4
EN 301 511
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Product Technical Specification and
Customer Design Guideline
Certification Compliance and
Recommended Standards
Document
Current
Version
ETSI 102.230
3.9.0
Smart cards; UICC-Terminal interface; Physical, electrical and logical test
specification(Release 99)
3.2.1
Global System for Mobile Communications (GSM); Harmonised standard for
mobile stations in the GSM 900 and DCS 1800 bands covering essential
requirements under article 3.2 of the R&TTE directive (1999/5/EC)
EN 301 908-2
Title
Federal Communications Commission (FCC) rules and Regulations: Power listed on the Grant is
conducted for Part 22 and conducted for Part 24.
This device is to be used only for mobile and fixed applications. The antenna(s) used for this
transmitter must be installed to provide a separation distance of at least 20cm from all persons and
must not be co-located or operating in conjunction with any other antenna or transmitter.
Users and installers must be provided with antenna installation instructions and transmitter operating
conditions for satisfying RF exposure compliance.
Antennas used for this OEM module must not exceed a gain of 8.4dBi (850 MHz) and 3.5dBi (1900
MHz) for mobile and fixed operating configurations. This device is approved as a module to be
installed in other devices.
Installed in other portable devices, the exposure condition requires a separate equipment
authorization.
The licensed module has an FCC ID label on the module itself. The FCC ID label must be visible
through a window or it must be visible when an access panel, door or cover is easily removed.
If not, a second label must be placed on the outside of the device that contains the following text:
Contains FCC ID: N7NQ2687
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,
2. this device must accept any interference received, including interference that may cause
undesired operation.
IMPORTANT:
Manufacturers of mobile or fixed devices incorporating the Q2687 Refreshed Embedded Module are
advised to:

clarify any regulatory questions,

have their completed product tested,

have product approved for FCC compliance, and

include instructions according to the above mentioned RF exposure statements in the end
product user manual.
Please note that changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
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13. References
13.1.1. Web Site Support
Check the Sierra Wireless website at http://sierrawireless.com for the latest documentation available.
Content
Web Site
General information about the Q Series
Intelligent Embedded Module
http://www.sierrawireless.com/productsandservices/AirPri
me/Embedded_Modules/Q_Series.aspx
Specific support about the Q2687 Refreshed
Embedded Module
http://www.sierrawireless.com/productsandservices/AirPri
me/Embedded_Modules/Q_Series/Q2687.aspx
Carrier/Operator approvals
http://www.sierrawireless.com/Support/Downloads/AirPri
me/Q_Series/AirPrime_Q2687.aspx
Sierra Wireless Software Suite Introduction
http://www.sierrawireless.com/en/productsandservices/Air
Prime/Sierra_Wireless_Software_Suite.aspx
Developer support for software and hardware
http://forum.sierrawireless.com/
13.2. Reference Documents
For more details, several reference documents can be consulted. The Sierra Wireless documents
referenced herein are provided in the Sierra Wireless documentation package; however, the general
reference documents which are not Sierra Wireless owned are not provided in the documentation
package.
13.2.1. Sierra Wireless Software Documentation
[1]
Getting started with SDK 2.33
Reference: WM_DEV_OAT_UGD_048
[2]
Tutorial for IDE 1.08 (if using IDE; obsolete if using Developer Studio)
Reference: WM_DEV_OAT_UGD_044
[3]
Tools Manual for IDE (if using IDE; obsolete if using Developer Studio)
Reference: WM_DEV_OAT_UGD_045
[4]
Basic Development Guide for SDK 2.33 (if using IDE; obsolete if using Developer Studio)
Reference: WM_DEV_OAT_UGD_050
[5]
ADL User Guide for SDK 2.33 (if using IDE; obsolete if using Developer Studio)
Reference: WM_DEV_OAT_UGD_051
[6]
SDK 2.33 Official Release Note
Reference: WM_DEV_OAT_DVD_338
[7]
Getting Started with the Sierra Wireless Software Suite 2.32
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Product Technical Specification and
Customer Design Guideline
References
WM_DEV_OAT_UGD_078
13.2.2. Firmware Documentation
[8]
Firmware 7.43 AT Commands Manual (Sierra Wireless Software Suite 2.33)
Reference: WM_DEV_OAT_UGD_079 (Version 14)
[9]
AT Commands Interface Guide (Bluetooth)
Reference: WM_ASW_BLU_UGD_001
[10]
Firmware 7.43 Customer Release Note
Reference: TBC
13.2.3. Hardware Documentation
[11]
AirPrime Q2687 Classic Product Technical Specification
Reference: WM_DEV_Q2687_PTS_001
[12]
AirPrime Q26xx Process Customer Guidelines
Reference: WM_PRJ_Q2686_PTS_004
[13]
AirPrime Q2687 Customer Design Guidelines
Reference: WA_DEV_Q2687_PTS_007
[14]
AirPrime Q2687 Product Technical Specification
Reference: WA_ENG_Q2687_PTS_001
[15]
AirPrime Q Series Development Kit User Guide
Reference: WM_BBD_Q26_UGD_001
[16]
AirPrime Q2687 Refreshed Migration Guide
Reference: WA_DEV_Q26RD_UGD_001
[17]
AirPrime Q2686 Product Technical Specification
Reference: WM_PRJ_Q2686_PTS_001
[18]
AirPrime Q2686 Customer Design Guideline
WM_PRJ_Q2686_PTS_003
13.2.4. Other Sierra Wireless Documentation
[19]
Automotive Environmental Control Plan for AirPrime Q2687 Refreshed Intelligent
Embedded Module
Reference: WM_QUA_Q2687_DCP_001
[20]
Bluetooth Interface Application Note
Reference: WM_ASW_OAT_APN_016
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Product Technical Specification and
Customer Design Guideline
References
13.2.5. Other Related Documentation
[21]
“I2C Bus Specification”, Version 2.0, Philips Semiconductor 1998
[22]
ISO 7816-3 Standard
13.2.6. Application Notes
For other application notes, the following reference designs are available upon request to Sierra
Wireless support.
Title
Description
Power Supply with automotive
constraints
DC-DC converter based on
STMicroElectronics L5973AD
VIN = 5.5...32V
VOUT = 3.8V
Especially designed to meet Sierra Wireless Intelligent Embedded Module
requirements.
CAN Interface (high speed)
CAN Interface over SPI based on:
- MicroChip MCP2515 CAN Controller,
- Philips PCA82C250T CAN Transceiver.
CAN Interface (low speed)
CAN Interface (over SPI) based on:
- MicroChip MCP2515 CAN Controller,
- Philips TJA1054A CAN Transceiver.
Bluetooth Connection
Provides BlueTooth Connectivity (over UART2) based on:
Murata LBMA29BAE2 HCI BlueTooth module.
Dual USB Interface
Provides 2 separate serial ports on a USB interface, based on:
FTDI FTDI2232C Dual USB UART with FIFO
Power Supply on USB
VIN = 5.0V (from USB supply)
VOUT = 3.8V
Especially designed to meet Sierra Wireless Intelligent Embedded Module
and power supply requirements.
Full GSM-GPRS modem on USB
Based on the two previous designs
13.3. List of Abbreviations
Abbreviation
Definition
AC
Alternative Current
ADC
Analog to Digital Converter
A/D
Analog to Digital conversion
AF
Audio-Frequency
AT
ATtention (prefix for modem commands)
AUX
AUXiliary
CAN
Controller Area Network
CB
Cell Broadcast
CEP
Circular Error Probable
CLK
CLocK
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Product Technical Specification and
Customer Design Guideline
Abbreviation
Definition
CMOS
Complementary Metal Oxide Semiconductor
CS
Coding Scheme
CTS
Clear To Send
DAC
Digital to Analogue Converter
dB
Decibel
DC
Direct Current
DCD
Data Carrier Detect
DCE
Data Communication Equipment
DCS
Digital Cellular System
DR
Dynamic Range
DSR
Data Set Ready
DTE
Data Terminal Equipment
DTR
Data Terminal Ready
EDGE
Enhance Data rates for GSM Evolution
EFR
Enhanced Full Rate
E-GSM
Extended GSM
EGPRS
Enhance GPRS
EMC
ElectroMagnetic Compatibility
EMI
ElectroMagnetic Interference
EMS
Enhanced Message Service
EN
ENable
ESD
ElectroStatic Discharges
FIFO
First In First Out
FR
Full Rate
FTA
Full Type Approval
GND
GrouND
GPI
General Purpose Input
GPC
General Purpose Connector
GPIO
General Purpose Input Output
GPO
General Purpose Output
GPRS
General Packet Radio Service
GPS
Global Positioning System
GSM
Global System for Mobile communications
HR
Half Rate
I/O
Input / Output
LED
Light Emitting Diode
LNA
Low Noise Amplifier
MAX
MAXimum
MIC
MICrophone
MIN
MINimum
MMS
Multimedia Message Service
MO
Mobile Originated
MT
Mobile Terminated
na
Not Applicable
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Product Technical Specification and
Customer Design Guideline
Abbreviation
Definition
NF
Noise Factor
NMEA
National Marine Electronics Association
NOM
NOMinal
NTC
Negative Temperature Coefficient
PA
Power Amplifier
Pa
Pascal (for speaker sound pressure measurements)
PBCCH
Packet Broadcast Control CHannel
PC
Personal Computer
PCB
Printed Circuit Board
PDA
Personal Digital Assistant
PFM
Power Frequency Modulation
PSM
Phase Shift Modulation
PWM
Pulse Width Modulation
RAM
Random Access Memory
RF
Radio Frequency
RFI
Radio Frequency Interference
RHCP
Right Hand Circular Polarization
RI
Ring Indicator
RST
ReSeT
RTC
Real Time Clock
RTCM
Radio Technical Commission for Maritime services
RTS
Request To Send
RX
Receive
SCL
Serial CLock
SDA
Serial DAta
SIM
Subscriber Identification Module
SMS
Short Message Service
SPI
Serial Peripheral Interface
SPL
Sound Pressure Level
SPK
SPeaKer
SRAM
Static RAM
TBC
To Be Confirmed
TDMA
Time Division Multiple Access
TP
Test Point
TVS
Transient Voltage Suppressor
TX
Transmit
TYP
TYPical
UART
Universal Asynchronous Receiver-Transmitter
USB
Universal Serial Bus
USSD
Unstructured Supplementary Services Data
VSWR
Voltage Standing Wave Ratio
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References
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14. Safety Recommendations (For
Information Only)
For the efficient and safe operation of your GSM application based on the Q2687 Refreshed
Embedded Module, please read this information carefully.
14.1. RF Safety
14.1.1. General
Your GSM terminal is based on the GSM standard for cellular technology. The GSM standard is
spread all over the world. It covers Europe, Asia and some parts of America and Africa. This is the
most used telecommunication standard.
Your GSM terminal is actually a low power radio transmitter and receiver. It sends out as well as
receives radio frequency energy. When you use your GSM application, the cellular system which
handles your calls controls both the radio frequency and the power level of your cellular modem.
14.1.2. Exposure to RF Energy
There has been some public concern about possible health effects of using GSM terminals. Although
research on health effects from RF energy has focused on the current RF technology for many years,
scientists have begun research regarding newer radio technologies, such as GSM. After existing
research had been reviewed, and after compliance to all applicable safety standards had been tested,
it has been concluded that the product was fitted for use.
If you are concerned about exposure to RF energy, there are things you can do to minimize exposure.
Obviously, limiting the duration of your calls will reduce your exposure to RF energy. In addition, you
can reduce RF exposure by operating your cellular terminal efficiently by following the guidelines
below.
14.1.3. Efficient Terminal Operation
For your GSM terminal to operate at the lowest power level, consistent with satisfactory call quality:
If your terminal has an extendable antenna, extend it fully. Some models allow you to place a call with
the antenna retracted. However your GSM terminal operates more efficiently with the antenna when it
is fully extended.
Do not hold the antenna when the terminal is "IN USE". Holding the antenna affects call quality and
may cause the modem to operate at a higher power level than needed.
14.1.4. Antenna Care and Replacement
Do not use the GSM terminal with a damaged antenna. If a damaged antenna comes into contact with
the skin, a minor burn may result. Replace a damaged antenna immediately. You may repair antenna
to yourself by following the instructions provided to you. If so, use only a manufacturer-approved
antenna. Otherwise, have your antenna repaired by a qualified technician.
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Product Technical Specification and
Customer Design Guideline
Safety Recommendations (For
Information Only)
Buy or replace the antenna only from the approved suppliers list. Using unauthorized antennas,
modifications or attachments could damage the terminal and may contravene local RF emission
regulations or invalidate type approval.
14.2. General Safety
14.2.1. Driving
Check the laws and the regulations regarding the use of cellular devices in the area where you have
to drive as you always have to comply with them. When using your GSM terminal while driving,
please:

give full attention to driving,

pull off the road and park before making or answering a call if driving conditions so require.
14.2.2. Electronic Devices
Most electronic equipment, for example in hospitals and motor vehicles is shielded from RF energy.
However, RF energy may affect some improperly shielded electronic equipment.
14.2.3. Vehicle Electronic Equipment
Check with your vehicle manufacturer representative to determine if any on-board electronic
equipment is adequately shielded from RF energy.
14.2.4. Medical Electronic Equipment
Consult the manufacturer of any personal medical devices (such as pacemakers, hearing aids, etc...)
to determine if they are adequately shielded from external RF energy.
Turn your terminal OFF in health care facilities when any regulations posted in the area instruct you to
do so. Hospitals or health care facilities may be using RF monitoring equipment.
14.2.5. Aircraft
Turn your terminal OFF before boarding any aircraft.

Use it on the ground only with crew permission.

Do not use it in the air.
To prevent possible interference with aircraft systems, Federal Aviation Administration (FAA)
regulations require you should have prior permission from a crew member to use your terminal while
the aircraft is on the ground. To prevent interference with cellular systems, local RF regulations
prohibit using your modem while airborne.
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Product Technical Specification and
Customer Design Guideline
Safety Recommendations (For
Information Only)
14.2.6. Children
Do not allow children to play with your GSM terminal. It is not a toy. Children could hurt themselves or
others (by poking themselves or others in the eye with the antenna, for example). Children could
damage the modem, or make calls that increase your modem bills.
14.2.7. Blasting Areas
To avoid interfering with blasting operations, turn your unit OFF when you are in a "blasting area" or in
areas posted: "turn off two-way radio". Construction crew often uses remote control RF devices to set
off explosives.
14.2.8. Potentially Explosive Atmospheres
Turn your terminal OFF when in any area with a potentially explosive atmosphere. Though it is rare,
but your modem or its accessories could generate sparks. Sparks in such areas could cause an
explosion or fire resulting in bodily injuries or even death.
Areas with a potentially explosive atmosphere are often, but not always, clearly marked. They include
fuelling areas such as petrol stations; below decks on boats; fuel or chemical transfer or storage
facilities; and areas where the air contains chemicals or particles, such as grain, dust, or metal
powders.
Do not transport or store flammable gas, liquid, or explosives, in the compartment of your vehicle
which contains your terminal or accessories.
Before using your terminal in a vehicle powered by liquefied petroleum gas (such as propane or
butane) ensure that the vehicle complies with the relevant fire and safety regulations of the country in
which the vehicle is used.
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Title                           : AirPrime Q2687 Refreshed Product Technical Specification and Customer Design Guideline
Description                     : AirPrime Q2687 Refreshed Product Technical Specification and Customer Design Guideline
Creator                         : Sierra Wireless
Subject                         : WA_DEV_Q26RD_PTS_001, Wireless CPU, wireless module, wireless modules, wireless modem, wireless modems, modem wireless, GSM module, GSM modules, GPRS module, GSM modem, GSM modems, GSM GPRS modem, CDMA modem, modem CDMA, CDMA wireless modem, EDGE modem, cellular modem, wireless modem, modem GSM, wireless GPS module, HSxPA modem, HSDPA modem, HSUPA modem, WISMO, cellular software, software cellular, wireless software, GSM software, Lua, GSM GPS, GPS GSM, CDMA GSM, EDGE, HSDPA, HSUPA, HSxPA, GSM satellite, satellite GPS, cellular satellite, GPS satellite, M2M, machine-to-machine, embedded wireless, gsm tracking, fleet management, GSM POS, GSM automotive, telematics, GPS wireless, satellite location, tracking system, satellite tracking, wireless alarm system, smart metering, wireless automotive, tracking systems, eCall
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Tagged PDF                      : Yes
Author                          : Sierra Wireless
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