Sony Ericsson GM29 Manuale utente

GM29

User Guide

Draft PA2

5.7.02

The product described in 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

prior written consent of Sony Ericsson Mobile Communications International,

is strictly prohibited. Further, no portion of this publication may be reproduced,

stored in a retrieval system, ortransmitted in any form or by any means, electronic

or mechanical, including photocopying and recording, without the prior written

consentofSony Ericsson MobileCommunicationsInternational,thecopyright

holder.

First edition (XXXX 2002)

Sony Ericsson Mobile Communications International publishes this document

without making any warranty as to the content contained herein. Further

Sony Ericsson Mobile Communications International reserves the right to

make modifications,additionsanddeletionstothisdocument due to typographical

errors, inaccurate information, or improvements to programs and/or equipment at

any time and without notice. Such changeswill, nevertheless be incorporated into

new editions of this document.

©Sony Ericsson Mobile Communications International, 2002

Publication number: LZT 123 7360 PA1

Printed in UK

Introduction...............4

Description........................ 4

Highlights ........................4

Installation................5

Safety and 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

Contents

4 Introduction

Introduction

Description

The dual band EGSM 900/1800MHz GM29, is

a GSM/GPRS serial modem. The modem is a

powerful and flexible device that can beused 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

making it easy andquick tointegrate.As well as

providing a standard RS232 serial

communicationinterface the GM29 also has an

audio interface allowing an analoguehandset to

be connected. When the GM29 is integrated

into an external application, a wireless

communicaions system is created.

A typical end-to-end system consists 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 communications link, via its

9-way RS232 serial interface.

GM29serialmodemsare intendedtobeusedby

manufacturers, system integrators, application

developers and developers of a wide range of

equipment and business solutions, typically in

the following fields:

• Security and alarms

• Vending

• Monitoring and control

• Utilities

• Fleet Management

Simplyconnect theGM29intoyourapplication

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, enhanced full rate, half rate

• SMS: mobile-originated, mobile-

terminated, cell broadcast

• Fax: Group 3, Classes 1 & 2

• 5V to 32V d.c. input

• Standard connectors

• R&TTE type approved

View of Left Side

View of Right Side

LED

RS232

connector

Antenna

connector

Power

connector

Handset

connector

Access to SIM card

Fixing hole

Installation 5

Installation

Safety and Installation

Information

[Needs to be checked and re-written]

• The Terminal 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

protect the 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 the modem take into

accounttheamountof additional space

required for the mating connectors and

cables that will be used in the

application.

NOTE! Where access is restricted, it may be

easier to connect all the cables to the

modem prior to securing it in the

application.

Securely attach the GM29 modem to the 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 Screws

6 Electrical Connections

Electrical Connections

All electrical connections to the GM29 are

protected in compliance with the standard air

(4kV) and contact (8kV) discharge ESD tests,

of EN 301 489-1.

The modem uses the following industry

standard connectors:

• 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 serial port)

Power Connector

An RJ11 6-way connector, as shown and

described below, serves as a means of

supplying and controlling d.c. power to the

modem.

Connect positive power 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 automatically switch

on the modem.

Switch on is usually achieved by use of the

TO_IN signal, which can be supplied by the

host application. Alternatively the 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.

Similarly the host application can be designed

toswitchofftheGM29or perform ahardreboot

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

Signal Description

VCC Positive power input

(5V to 32V d.c. at 1.5Amax)

TO_IN Active high control line used for

switchingonthemodem

(–0.5V to 32V;

VIH >5V,V

IL <2V)

HR_IN Active high control line used to

switch off or reset the modem

(–0.5V to 32V;

VIH >5V,V

IL <2V)

GND Negative power (ground) input

and return path for TO_IN and

HR_IN

654321

1 VCC

2 n/c

3 HR_IN

4 TO_IN

5 n/c

6GND

Electrical Connections 7

Audio Connector

A 4-way RJ9 connector, as shown below,

allows a telephone handset to be plugged into

the modem, giving access to the microphone

andearpiecesignals.Theconnectormayalsobe

used to drive other analogue audio sub-systems

or devices.

TheGM29isconfiguredtoworkwitharange

of handsets.

CAUTION! Not all handsets use the pin-outs

shown below for microphone and

earpiece.

If necessary, changes can be made to the

characteristicsof theaudio interface by sending

the modem appropriate AT commands.

RJ9 Handset Connector

Antenna Connector

Connect a GSM antenna to this port. Single

(900 or 1800MHz) or dual band

(900/1800MHz) antennas may be used. The

modem is fitted with a 50Ω,FME male coaxial

jack.

FME Connector

Signal Description

MICN Microphone negative input

BEARN Earpiece negative output

BEARP Earpiece positive output

MICP Microphone positive input

4321

1 MICN

2 BEARN

3 BEARP

4 MICP

Signal Description

RF RF input/output

GND Ground connection

GND

RF Signal

8 Electrical Connections

RS232 Serial Port

The modem supports a standard RS232 serial

interface (EIA/TIA 574) via its 9 pin Sub-D

connector, shown below.

Link the GM29 to a microcontroller or

computer in the host application, via the RS232

serial port. AT commands are used by the

host-application software to communicate with

the GM29.

Sub-D 9-pin Connector

Signal Voltage

levels Description

DCD >+4V

<–4V Data carrier detect

RD > +4V

<–4V Received data

TD >2V

<0.8V Transmitted data

DTR > 2V

<0.8V Data terminal ready

GND 0V ground connection

DSR > +4V

<–4V Data set ready

RTS >2V

<0.8V Request to send

CTS > +4V

<–4V Clear to send

RI >+4V

<–4V Ring indicator

1 DCD

2RD

3TD

4 DTR

5GND

6 DSR

7RTS

8 CTS

9RI

54321

Electrical Connections 9

SIM Card Reader

TheGM29isfittedwithaSIMcardreaderin

which 3V and 5V SIM cards will operate. The

type of card fitted is automatically detected by

the modem.

Tooperate themodemaSIMcardmustbefitted

as follows:

1. Disconnect power to the GM29;

2. Remove the cover panel by applying light

downward pressure and sliding outwardsas

shown below;

3. Applying light pressure, slide the SIM card

holder to the “OPEN” position as shown

below;

4. Carefully raise the SIM card holder until it

is in the vertical position as shown below;

5. Orientate the SIM card and slide into the

holder as shown below;

6. Close the SIM holder and slide into the

“LOCK” positon;

7. Refit the cover panel.

To replace or remove a SIM card, follow the

same procedure as described above except

remove or exchange the card at step 5.

10 Operation

Operation

Before the GM29 can be operated thefollowing

conditions must apply:

• SIM card inserted (with the modem

unpowered);

• antenna connected;

• RS232 port connected to the application

computer;

• power applied.

Operation is not dependent on a handset being

fitted. The type of application will dictate

whether a handset is necessary.

SwitchingOntheModem

There are two ways to switch on the modem,

once power is applied.

• either assert TO_IN high for > 0.2s;

• or activate the RS232 control line DTR,

high for > 0.2s.

The modem is fully operational after 4 seconds.

Logging onto a network may take longer than

this and is outside the control of the modem.

The modem can be configured to start up at the

time power is applied by permanently tying

power connector signals TO_IN (pin 4) and

VCC (pin 1) together. In this case DTR must be

used to switch the modem on again after it has

been switched off or reset, while power is still

applied.

Switching Off the Modem

Therearetwowaystoswitchoffthemodemas

described below:

• either use the appropriate AT command;

• orassertHR_INhighfor1-2seconds.A

delayofupto10sisexperiencedasthe

modem logs off the network.

Resetting the Modem

A full system reset, independent of the status of

thesoftware,maybeappliedtothemodemas

follows:

• assert HR_IN high for > 3.5s.

Operating States/LED

The GM29 has a green LED, as shown below,

used to indicate various operating states. These

states are described in the following table.

Operating state LED

After switching on the modem On after 4s

Switch off or power removed Off

Standby or talk Flashing

Modemonwithoneofthefol-

lowing conditions:

No network, network search,

no SIM card, no PIN entered

LED

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