Integration Guide
Table Of Contents
- 1 Safety Precautions
- 2 Manual Overview
- 2.1 REFERENCES
- 2.1.1 ENFORA ENABLER III LPP PRODUCT DOCUMENTATION MANUALS
- 2.1.2 GSM DEVICE SPECIFICATIONS
- 2.1.3 FEDERAL COMMUNICATIONS COMMISSION (FCC)
- 2.1.4 FCC OFFICE OF ENGINEERING AND TECHNOLOGY (OET)
- 2.1.5 INDUSTRY CANADA
- 2.1.6 ENVIRONMENTAL REGULATIONS
- 2.1.7 MECHANICAL SPECIFICATIONS
- 2.1.8 RF AND EMI SPECIFICATIONS
- 2.1 REFERENCES
- 3 Introduction
- 4 Technical Specifications
- 5 Physical Interfaces
- 5.1 MODULE MOUNTING TO HOST BOARD (REFERENCE)
- 5.2 I/O PIN ASSIGNMENTS
- 5.3 CIRCUIT PROTECTION
- 5.4 CONTROL CONNECTOR SIGNAL DESCRIPTIONS AND FUNCTIONS
- 5.4.1 MODULE POWER (PINS 30, 31)
- 5.4.2 ON/OFF SIGNAL (PIN 4)
- 5.4.3 ON/OFF STATUS (PIN 5)
- 5.4.4 GENERAL PURPOSE INPUT SIGNALS (PINS 10, 11)
- 5.4.5 GENERAL PURPOSE OUTPUT SIGNALS (PINS 12, 13)
- 5.4.6 RESET SIGNAL (PIN 24)
- 5.4.7 USB (PINS 34, 35, 36)
- 5.4.8 SERIAL INTERFACES
- 5.4.9 HANDSET MICROPHONE INPUT (PINS 37, 38)
- 5.4.10 HANDSET SPEAKER OUTPUT (PINS 39, 40)
- 5.5 SUBSCRIBER IDENTITY MODULE (SIM) (PINS 42, 43, 44, 45, 46)
- 5.6 ANTENNA
- 6 GPS Performance
- 7 GSM/GPRS Modes of Operation
- 8 Software Interface
- 9 APPENDIX A - LIMITED WARRANTY
- 10 APPENDIX B - Regulatory Compliance
- 11 APPENDIX C - Glossary and Acronyms
- 12 APPENDIX E - Contacting Enfora
Enfora Enabler III LPP
Integration Guide Page 22 Revision: 0.00
5.3 CIRCUIT PROTECTION
Other than very low level ESD protection within the module’s integrated circuits, the
module does not have any protection against ESD events or other excursions that
exceed the specified operating parameters.
Generally, ESD protection (typically TVS/Transorb devices) should be added to all
signals that leave the host board. This includes V
BAT
/V
CC
.
Series resistors (typically 47Ω) can also be added in series with data lines to limit
the peak current during a voltage excursion.
Warning: Do not add series resistance to the SIM electrical.
Minimum ESD Protection Levels
ESD/Input Voltage
Pin #’s ESD Test Method High/Peak Units
Pins 4-16, 17, 18,
19, 34, 35
Human Body Model
EIA/JEDEC22-A114-A
500 V
Charge Device Model
EIA/JEDEC22-C101-A
200 V
Pins (all
VBUS/PWR), 37,
38, 42, 43, 44, 46
Human Body Model
EIA/JEDEC22-A114-A
2000 V
Charge Device Model
EIA/JEDEC22-C101-A
500 V
RF Antenna IEC 61000-4-2 8000 V
Table 4: ESD Protection Levels
Warning: It is the Integrator’s responsibility to protect the Enabler III
LPP module from electrical disturbances and excursions, which exceed
the specified operating parameters.