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
41 novatelwireless.com
Figure 3-11 Remote SIM Interface
Pin Name Pin Number Signal Direction Description
SIM_VDD 76 O SIM VDD
SIM_CLK 78 O Card Reference Clock
SIM_RST 80 O Card Reset
SIM_I/O 82 I/O Card I/O Data
SIMDTC 84 I Card detect
The module provides the regulated supply voltage for the SIM-card and the circuitry to
detect the insertion or extraction of the SIM-Card in or from the mobile.
The SIMDTC is disabled by default (see AT$SIMDTC in the EIII AT Command Manual for
settings). When enabled, the SIMDTC pin has an internal pull up to Vcc and can be configured
to detect a SIM insertion when the SIMDTC is either pulled to ground or left floating.
It can configured to detect either just a SIM removal or both removal and insertion. SIM
detection is also dependent on the setting of the AT$AREG and AT+CFUN commands (see
AT$SIMDTC in the EIII AT Command Manual for more information).
When the module detects a SIM removal, it will de-register from the network. When the
module is configured to and detects a SIM insertion, it will re-register the module on the
network.
The SIM-card presence detection logic is active even when the system is in idle mode.