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CONTENTS
I - GENERAL ..............................................................................................................................................................4
II - DESCRIPTION ......................................................................................................................................................4
III - USING THE MODEM ...........................................................................................................................................5
WE RECOMMEND THAT YOU MAKE ALL THE CONNECTIONS WITH THE UNIT UNPOWERED...................................................5
III.1 - INTRODUCTION ................................................................................................................................................5
III.2 - DTE CONNECTION...........................................................................................................................................5
III.3 - CONNECTION TO THE SUPPLY...........................................................................................................................5
III.4 - NETWORK CONNECTION...................................................................................................................................6
III.5 - SWITCHING ON ................................................................................................................................................6
III.6 - SWITCHING OFF THE MODEM ............................................................................................................................6
III.7 - USING THE RESET PIN ...................................................................................................................................7
III.8 - USING THE GPS/DGPS FUNCTION ...................................................................................................................7
IV - HAYES COMMANDS ..........................................................................................................................................8
LINKING THE COMMANDS TOGETHER ............................................................................................................................8
MAIN HAYES COMMANDS...........................................................................................................................................8
V - FUNCTIONING OF THE INPUTS/OUTPUTS ......................................................................................................9
VI - TECHNICAL DATA. ..........................................................................................................................................10
VI.1 - OPERATING CONDITIONS ...............................................................................................................................10
VI.2 - POWER SUPPLY AND CONSUMPTION ..............................................................................................................10
VI.3 - RF PERFORMANCES......................................................................................................................................10
VI.3.1 - GSM ....................................................................................................................................................10
VI.3.2 - GPS .....................................................................................................................................................11
VI.4 - PROTECTION SYSTEMS ..................................................................................................................................11
VII - ADDITIONAL FUNCTIONS..............................................................................................................................11
VII.1 - MODIFICATION OF THE SIGNALS ON V24 ........................................................................................................11
VII.1.1 - GSM_DSR/GPS_RxD2 ......................................................................................................................11
VII.1.2 - GSM_DTR/GPS_TxD2.......................................................................................................................11
VII.2 - MODIFICATION OF THE SUPPLY VOLTAGE FOR THE ACTIVE GPS ANTENNA .......................................................12
VII.3 - SWITCHOVER TO LOW CONSUMPTION FOR THE RS232 (SHUTDOWN) ..............................................................12
APPENDIX I - CONNECTIONS..................................................................................................................................13
SIGNALS FROM THE RS 232 CONNECTOR ..................................................................................................................13
VIEW OF THE FRONT OF THE GEN LOC25 MODEM’S RS232 FEMALE CONNECTOR.........................................................13
SUBD9F-SUBD15M CONNECTION CABLE ................................................................................................................14
POWER SUPPLY CONNECTOR SIGNALS .......................................................................................................................14
VIEW OF THE FRONT OF THE POWER SUPPLY CONNECTOR...........................................................................................14
APPENDIX II - RECOMMENDATIONS .....................................................................................................................15
PROHIBITED CONNECTION DIRECTLY TO A VEHICLE’S BATTERY ....................................................................................15
RECOMMENDED CONNECTION TO A VEHICLE’S BATTERY ..............................................................................................16
CHANGES TO THIS DOCUMENT:
BASIC VERSION MODIFICATIONS ADDED COMPILED BY: DATE
V01 INITIAL CREATION F GOHIER 30/06/04
V02 MECHANICAL DRAWING OF THE CASING P BLANCHARD 21/07/04
V03 I/O MODIFICATION BECAUSE OF CHANGE
TO ED C COPPER VERSION
P BLANCHARD 16/08/04
