Sony Ericsson GM29 User Manual
GM29
User Guide
Draft PA2
5.7.02
The productdescribedin this document conforms to the Radio and
Telecommunication Terminal Equipment (R&TTE) directive 99/5/EC with
requirements covering EMC directive 89/336/EEC and Low Voltage directive
73/23/EEC.The product fulfils the requirements according to
3GPP TS 51.010-1, EN 301 489-7 and EN60950.
SAR statement: This product is intended to be used with the antenna or other
radiating element at least 20cm away from any part of the human body.
The information contained in this document is the proprietary information of
Sony Ericsson Mobile Communications International.The contents are
confidential and any disclosure to persons other than the officers, employees,
agents or subcontractors of the owner or licensee of this document, without the
priorwrittenconsentof Sony EricssonMobile CommunicationsInternational,
is strictly prohibited. Further, no portion of this publication may be reproduced,
storedin a retrievalsystem,ortransmittedin any form or by any means, electronic
or mechanical, including photocopying and recording, without the prior written
consentof SonyEricssonMobile CommunicationsInternational,the copyright
holder.
First edition (XXXX 2002)
SonyEricssonMobileCommunicationsInternationalpublishesthisdocument
without makingany warranty as to the content contained herein. Further
Sony Ericsson Mobile Communications International reserves the right to
makemodifications,additionsand deletionstothisdocument due to typographical
errors, inaccurate information, or improvements to programs and/or equipment at
anytime and without notice.Such changeswill, neverthelessbe incorporated into
new editions of this document.
All rights reserved.
© Sony Ericsson Mobile Communications International, 2002
Publication number: LZT 123 7360 PA1
Printed in UK
Contents
Introduction...............4
Description........................4
Highlights ........................4
Installation................5
Safetyand Installation
Information.......................5
SecuringtheModem................5
ElectricalConnections.......6
PowerConnector...................6
AudioConnector...................7
AntennaConnector.................7
RS232SerialPort..................8
SIMCardReader...................9
Operation................10
SwitchingOntheModem...........10
SwitchingOfftheModem...........10
ResettingtheModem...............10
OperatingStates/LED..............10
Accessories . .............11
ATCommands ............11
TypeApproval ............11
SoftwareUpdates..........11
Certification..............11
Troubleshooting...........11
ModemNotWorking...............11
SoftwareCrashed..................11
No Communication,
ModemSwitchedOn...............11
Service and Support . . . . . . . . 11
TechnicalData............14
DataFeatures.....................14
ShortMessageServiceFeatures......14
VoiceFeatures....................14
FaxFeatures......................14
DataStorage .....................14
PowerSupply.....................15
AveragePowerConsumption........15
RadioSpecifications...............15
AudioSpecifications...............16
SIMCardReader..................16
ElectricalConnectorsandLED.......16
MechanicalSpecification ...........16
Environmentalspecifications ........17
Certification......................17
3
Introd uction
Description
The dual band EGSM900/1800MHz GM29,is
a GSM/GPRS serial modem. The modem is a
powerfuland flexibledevicethat can be used in
a wide range of telemetry and telematics
applicationsthatrely on theremoteexchange of
data,voice,SMS or faxes via the GSM cellular
network.
Small and lightweight, the GM29 has standard
connectors and an integral SIM card reader
makingit easyandquickto integrate.Aswella s
providinga standard RS232 serial
communicationinterfacetheGM29 alsohas an
audiointerfaceallowing an analoguehandset to
be connected. When the GM29 is integrated
into an external application, a wireless
communicaions system is created.
A typicalend-to-end systemconsists of a micro
controller in an external application
communicating, via the GM29 modem, with a
remote terminal or host using the GSM
network.The micro controller uses a set of AT
commands to control the modem, and to set up
the end-to-end communicationslink, via its
9-way RS232 serial interface.
GM29serial modemsare intendedto be usedby
manufacturers, system integrators, application
developers and developers of a wide range of
equipment and business solutions,typicallyin
the following fields:
• Security and alarms
• V ending
• Monitoring and control
• Utilities
• Fleet Management
SimplyconnecttheGM29intoyour application
as described later in this guide.
Highlights
• Dual band, EGSM 900/1800MHz,
GSM/GPRS serial modem
• Flexible plug-and-play device
• Data: GPRS, HSCSD, CSD, SMS
• Voice: full rate, enhancedfull rate, half rate
• SMS: mobile-originated, mobileterminated, cell broadcast
• Fax: Group 3, Classes 1 & 2
• 5V to 32V d.c. input
• Standard connectors
• R&TTE type approved
View of Left Side
LED
Antenna
connector
RS232
connector
View of Right Side
Access to SIM card
Power
connector
Handset
connector
4 Introduction
Fixing hole
Installation
Safety and Installation Information
[Needs to be checked and re-written]
• TheTerminal should be installed and setup
only by qualified personnel.
• Connect a fast 1.25A fuse to the incoming
line for the positive supply voltage to
protectthe Terminal.
• If a power supply unit is used to supply the
GM29 modem, it must meet the demands
placed on SELV circuits in accordance
with EN60950. When using batteries and
accumulators,adhere to the relevant
regulations.
• The maximum permissible connection
length between the GM29 Modem and the
supply source is 3m.
• Your supplier will be pleased to provide
you with a detailed technical description
and technical support for the GM29
Modem.
Securing the Modem
NOTE! Before securing t he modem take into
accountthe amountof additionalspace
requiredfor the mating connectorsand
cables that will be used in the
application.
NOTE! Where access is restricted, it may be
easierto connect all the cables to the
modem prior to securing it in the
application.
Securely attach the GM29 modem to t he host
application using two 3mm diameter pan-head
screws of appropriate length as shown below.
CAUTION! Do not over tighten the fixings
screws. Excessive torque applied
to the screws can crack the plastic
case.
Fixing Scr ews
Installation 5
Electrical Connections
All electrical connections to the GM29 are
protectedin compliance with the standard air
(4 kV) and contact (8 kV) discharge ESD tests,
of EN 301 489-1.
The modem uses the following industry
standardconnectors:
• RJ11 6-way (power connector)
• RJ9 4-way (audio connector)
• SIM card reader
• FME male coaxial jack (antenna
connector)
• Sub-D socket, 9 pin (RS232 serialport)
Power Connector
An RJ11 6-way connector, as shown and
describedbelow, serves as a means of
supplying and controlling d.c. power to the
modem.
Connectpositivepower to VCC (pin 1) and the
ground or negative to GND (pin 6). VCC and
GND are reverse polarity and overvoltage
protected
NOTE! Application of the supply voltage
VCC, does not automaticallyswitch
on the modem.
Switch on is usually achieved by use of the
TO_IN signal, which can be supplied by the
host application. Alternatively t he modem can
be switched on at the same time that power is
appliedbyhard-wiringTO_INtoVCC.Refer
to “Switching On the Modem” on page 10 for
information on switch on methods.
Similarlythe host application can be designed
toswitchofftheGM29or performahardreboot
of the modem's software by use of the HR_IN
signal.Refer to “Switching Off the Modem”
and “Resetting the Modem” on page 10 for
additional information.
TO_IN and HR_IN are referenced to GND.
RJ11 Power Connector
654321
1 VCC
2 n/c
Signal Description
VCC Positive power i nput
TO_IN Active high control line used for
HR_IN Activehigh control line u sed to
GND Negative power (ground) input
3 HR_IN
4 TO_IN
(5V to 32V d.c. at 1.5A
switchingonthemodem
(–0.5V to 32V;
V
>5V,VIL<2V)
IH
switchoff or reset the modem
(–0.5V to 32V;
V
>5V,VIL<2V)
IH
and return path for TO_IN and
HR_IN
5 n/c
6GND
max
)
6 Electrical Connection s
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