Integration Guide
Version 1.11
GSM0000PB001
Page 50
1.11 - 4/22/03
11.0 Integration and Testing
The Enfora Enabler-G module has been designed to minimize the amount of time required for integration
and testing the application. By being fully certified by the appropriate bodies, the Enfora Enabler-G module
provides seamless integration into the GSM network.
The integration issues for the application can be narrowed to the utilization of the AT commands and the use
of the GSM functionality. Coverage and signal quality may be evaluated by using the RSSI commands.
Additional network information can be determined by using AT commands.
Integration of the GPRS Packet capabilities is more complicated than using AT command sequences to
initiate the connection and begin transferring data. The following Application Notes should be used to
integrate the GPRS packet capabilities:
GSM0000AN001 - Enabler-G PPP Configuration for Windows 98
GSM0000AN002 - Enabler-G PPP Configuration for Windows 2000
GSM0000AN008 - Enabler-G PPP Configuration for Windows XP
GSM0000AN010 - Enabler-G PPP Configuration for PocketPC 2002
GSM0000AN005 - Enabler-G Automated Network Connection Configuration and Use
Integrating the Enfora Enabler-G Module
Note:
Generally, all interfaces that are externally available to the end user need to be ESD-
conditioned and terminated in some way. Many of these interfaces should not be connected with
power applied.
At the highest level, this is done using some type of GSM test equipment (such as, Racal 6103E), a
computer, and a serial interface tester. The GSM test equipment must be able to simulate a GSM
call and measure the key parameters related to the module.
Additionally, the serial interfaces and some minimal SIM functionality can be verified by sending AT
commands to the Enfora Enabler-G module.
All of these conditions need to be verified at ambient as well as extreme conditions.
As part of integration, each of the following interfaces must be verified:
Information
Recommendations
SIM
The maximum line length of the SIM interface is 25.4
cm (10 inches).
The Enfora Enabler-G module takes care of the signal conditioning
As a minimum, an external application with a remote SIM will require a standard SIM
carrier.
Filter the SIM VCC signal with a 10 uf / 10 V capacitor to help with the line length.
Primary and
secondary serial
Interfaces
The Enfora Enabler-G module uses a 3 V digital interface that is 5 V tolerant. The
RS-232 signals must be level-shifted to get standard levels. These signals must be
ESD-protected.
Reset Interface
Resets the Enfora Enabler-G module when tied low.
Audio/Microphone
Interface
Preliminary balancing on Enfora Enabler-G module.
Maximum length TBD
