User's Manual

Eagle II GSM Radio Module Technical Manual Preliminary Draft: 08/31/00 36
Part Number: 07100017 version 00.04
© 2000 Xircom, Inc. All rights reserved.
All trademarks and copyrights are the property of Xircom, Inc.
As part of integration, each of the following interfaces should be verified:
Interface Recommendations
SIM
The maximum line length of the SIM interface is
TBD
cm (TBD inches).
The Eagle II module takes care of the signal conditioning
As a minimum, an external application with a remote SIM will require a
standard SIM carrier.
"
Tie the SW1 signal of this to the SIM 3 V line via a 20k resistor.
"
Filter the SIM VCC signal with a 10 uf / 10 V capacitor to help with the
line length.
Primary and
secondary serial
interfaces
The Eagle II 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 Eagle II module when tied low.
Audio/Microphone
Interface
Preliminary balancing on Eagle II module.
Maximum length TBD
Testing the following parameters verifies the RF parameters that may be affected by such
things as RF path loss, power supply noise, and external interference.
Functionality Parameters to be Tested
Transmitter
Frequency Error
Phase Error
PA Ramp
Modulation Spectrum
RF Power Steps
Timing Advance
Receiver
BER Based RX Tests (RXQUAL RXLEV)
BER Based Sensitivity
Testing the following GSM functionality verifies proper network communication.
Functionality Parameters to be Tested
Network Function
Synchronization and registration
Call set-up and call termination (both MT and MO calls)
SMS and/or data calls