User's Manual
Table Of Contents
- 1 Introduction
- 2 Module Power
- 3 Physical Interfaces
- Module Mounting to Host Board (Reference)
- Connectors
- Connectors
- I/O Connector Pin Assignments
- Circuit Protection
- Antenna
- Control Connector Signal Functions
- Module Power (Pins 85, 87, 89, 91, 93, 95, 97, 99)
- Power Control (Pin 35) - (PWR_CTL)
- Level Translation Reference Power (Pin 77)
- USB (Pins 1, 3, 5, 7, 9)
- General Purpose Input/Output Interface
- RTC Sleep
- Serial Interfaces & Handshake (Pins 11, 13, 15, 17, 19, 21, 23, 25)
- Multi-Channel Serial Interface (MCSI) – (Pins 12, 14, 16, 18)
- VBackup Input (Pin83)
- Using VBackup
- Analog-to-Digital Input (Pin 74)
- Handset Microphone Input (Pins 65, 67)
- Handset Microphone Bias Output (Pin 63)
- Handset Speaker Output (Pins 71, 73)
- Headset Microphone Input (Pin 55)
- Headset Microphone Bias Output (Pin 53)
- Headset Speaker Output Left & Right (Pins 57, 59)
- Headset Output Common Mode (Pin 61)
- Headset Detect (Pin 47)
- Subscriber Identity Module (SIM) Carrier (Pins 76, 78, 80, 82, 84)
- 4 Hardware Design
- General Design Guidelines for Using Novatel Wireless M2M GSM Modules
- Enabling the Transmission Modes for the GSM/GPRS Services
- Voice Communication
- Circuit-Switched Data
- SMS: Short Message Services
- Provisioning The SIM
- GSM Services Supported by the Novatel Wireless M2M Enabler IIIG Module
- GPRS Services Supported by the Novatel Wireless M2M Enabler IIIG Module
- Selecting the GSM Modes of Operation
- 5 Setup and Initialization
- 6 Integration and Testing
53 novatelwireless.com
Enabling The Transmission Modes For The
GSM/GPRS Services
Each of the GSM/GPRS services has two modes that can be enabled separately:
Mobile-originated (MO): allows the making of a service request (such as, making a telephone
call or sending an SMS)
Mobile-terminated (MT): allows receiving a service request (such as receiving a telephone call
or an SMS)
Note: Contact your local GSM operator to ensure that the services and modes
have been provisioned for the SIM
Voice Communication
The Novatel Wireless M2M Enabler IIIG module has full voice capabilities, provided the
necessary connections have been made for the speaker and microphone pins on the 100-pin
I/O connector. The Novatel Wireless M2M Enabler-IIIG AT Command Set Reference -
GSM0308AT001 has the entire list of commands that can be used to control the voice
functionality. The quick start guide in this manual provides a basic command set that can be
used to initialize and test the voice functionality.
The Novatel Wireless M2M Enabler IIIG module supports four vocoder compression
algorithms for voice communication: Full-Rate (FR), Enhanced Full-Rate (EFR), Half-rate (HR)
and Adaptive Multi-rate (AMR).
Circuit-Switched Data
In this mode, the Novatel Wireless M2M Enabler IIIG module supports both of the connection
modes of transmission that are provided by GSM:
Non-Transparent mode delivers a constantly low error rate but with a non-guaranteed
throughput or delay. The Non-Transparent service provides a performance that is closest to
using a modem over a fixed Public Switched Telephone Network (PSTN) line.