Sony 6220501-BV Users Manual

GM 47/GM 48

Technical Description

CE

The product described in this manual conforms to the Radio and Teleterminals directive 1999/5/EC with requirements covering EMC directive 89/336/EEC and Low Voltage directive 73/23/EEC.

SAR statement: This product is intended to be used with the antenna or other radiating element 20 cm far away of the any part of the human body.

The information contained in this document is the proprietary information of Sony Ericsson Mobile Communications. 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, is strictly prohibited.

Further, no portion of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, without the prior written consent of Sony Ericsson Mobile Communications, the copyright holder.

Second edition (February 2002)

Sony Ericsson Mobile Communications. publishes this manual without making any warranty as to the content contained herein. Further Sony Ericsson Mobile Communications. reserves the right to make modifications, additions and deletions to this manual due to typographical errors, inaccurate information, or improvements to programs and/or equipment at any time and without notice. Such changes will, nevertheless be incorporated into new editions of this manual.

All rights reserved.

© Sony Ericsson Mobile Communications., 2002

Publication number:

Printed in UK

Trademarks

AIX is a trademark owned by International Business Machines Corporation

Contents

1	INTRODUCTION ...........................................................................................................			5
	1.1	OVERVIEW ...............................................................................................................		5
	1.2	FEATURES................................................................................................................		6
	1.2.1		Type of Mobile Station ......................................................................................	6
	1.2.2		SMS ................................................................................................................	7
	1.2.3		Voice calls .......................................................................................................	7
	1.2.4		Data .................................................................................................................	7
	1.2.5		SIM Card ..........................................................................................................	8
	1.2.6		Power consumption ..........................................................................................	8
	1.2.7		Other features ..................................................................................................	8
	1.2.8		Development Kit ...............................................................................................	8
	1.3	PRECAUTIONS...........................................................................................................		9
	1.4	ABBREVIATIONS ........................................................................................................		9
2	MECHANICAL DESCRIPTION.....................................................................................			11
	2.1	INTERFACE DESCRIPTION..........................................................................................		11
	2.2	PHYSICAL DIMENSIONS.............................................................................................		12
3	SYSTEM CONNECTOR INTERFACE...........................................................................			13
	3.1	OVERVIEW .............................................................................................................		13
	3.2	GENERAL ELECTRICAL AND LOGICAL CHARACTERISTICS................................................		16
	3.2.1		General Protection Requirements ....................................................................	16
	3.3	GROUNDS ..............................................................................................................		16
	3.3.1		The Analogue Ground .....................................................................................	17
	3.3.2		The Digital Ground (DGND) .............................................................................	17
	3.4	REGULATED POWER S UPPLY ....................................................................................		17
	3.4.1		Power Supply (VCC) .......................................................................................	18
	3.5	ON/OFF AND EXTERNAL POWER S IGNALS..................................................................		18
	3.5.1		Module ON/OFF .............................................................................................	18
	3.5.2		External 2.75 V (VIO) ......................................................................................	19
	3.6	ANALOGUE A UDIO ...................................................................................................		19
	3.6.1		Audio To Mobile Station (ATMS) ......................................................................	20
	3.6.2		Audio From Mobile Station (AFMS) ..................................................................	22
	3.7	MICROPHONE S IGNALS ............................................................................................		22
	3.8	SPEAKER S IGNALS ..................................................................................................		23
	3.9	DIGITAL AUDIO ........................................................................................................		23
	3.10	SERIAL DATA..........................................................................................................		24
	3.10.1		UART 1 (RS232) - RD, TD, RTS, CTS, DTR, DCD and RI .................................	26
	3.10.2		Serial Data Signals - RD, TD ...........................................................................	26
	3.10.3		Control Signals - RTS, CTS, DTR, DCD, RI ......................................................	27
	3.10.4		UART 2 - TD2, RD2 ........................................................................................	29
	3.10.5		UART 3 - TD3, RD3 ........................................................................................	29
	3.11	SIM CARD RELATED SIGNALS....................................................................................		30
	3.11.1		SIM Detection – SIM Presence ........................................................................	31
	3.12	SERVICE/PROGRAMMING ..........................................................................................		31
	3.13	BUZZER .................................................................................................................		32
	3.14	LED	......................................................................................................................	32
	3.15	TX_ON ...............................................................................- BURST TRANSMISSION		33
	3.16	TIMESTAMP ............................................................................................................		33
	3.17	REAL ...................................................................................................TIME CLOCK		34
4	ANTENNA ............................................................................................CONNECTOR			35

5	AT COMMAND SUMMARY..........................................................................................	36
6	TECHNICAL DATA .....................................................................................................	39

1 Introduction

1.1Overview

The GM47/48 belong to a new generation of Sony Ericsson Mobile Communications GSM modules. This document describes the main characteristics and functionality of the GM 47/48, two dual band products for 900/ 1800 MHz and 850/1900 MHz GSM bands respectively.

They are intended to be used in both machine-to-machine applications and man-to-machine applications. The module serves its purpose when there is a need for sending and receiving data (by SMS, CSD, HSCSD, or GPRS), as well as making voice calls over the GSM network.

GM47/48 are business-to-business products. It is intended to be sold to manufacturers, system integrators, applications developersdeveloping solutions with wireless communication. The module is intended to be integrated by the system integrator within an application. The module and the external application will form a system for wireless communication.

A typical system is one where a micro controller in an external application communicates with the module over its serial interface. The micro controller will control the module, via the supported set of AT commands. It is assumed that the system integrators have a high technical knowledge and the ability to integrate the module into a system. For the GM47/48 modules some interesting applications are the following:

∙Fleet and Asset Management

∙Vending Machines

∙Security and Alarm

∙Other telemetry applications

1.2Features

The module performs a set of telecom services (TS) according to GSM standard phase 2+, ETSI and ITU-T. The functions of the module are implemented by issuing AT commands over the serial interface. Supported AT commands are listed in section 5, these are defined further in GSM 7.05.

1.2.1 Type of Mobile Station

The GM 4X family are normal dual band type of MS with the following characteristics.

GM 47	GSM 900		E-GSM 900	GSM 1800
Frequency Range	TX: 890-915		TX: 880-890	TX: 1710-1785
(MHz)	RX: 935-960		RX: 925-935	RX: 1805-1880
Channel spacing	200 kHz			200 kHz
Number of channels	173 Carriers *8 (TDMA)			374 Carriers *8 (TDMA)
	GSM: Channels 1 to 124			DCS: Channels 512 to 885
	E-GSM: Channels 975 to 1023
Modulation	GMSK			GMSK
TX Phase Accuracy	< 5º RMS Phase error (burst)			< 5º RMS Phase error (burst)
Duplex spacing	45 MHz			95 MHz
Receiver sensitivity at	< - 102 dBm			< - 102 dBm
antenna connector
Transmitter output	Class 4			Class 1
power at antenna
connector
	2W (33 dBm)			1W (30 dBm)
Automatic hand-over between GSM 900 and GSM 1800
GM 48		GSM 850			GSM 1900
Frequency Range (MHz)		TX: 824-849			TX: 1850-1910
		RX: 869-894			RX: 1930-1990
Channel spacing		200 kHz			200 kHz
Number of channels		123 carriers *8 (TDMA)			298 Carriers *8 (TDMA)
		GSM: Channels 128 to 251			PCS: Channels 512 to 810
Modulation		GMSK			GMSK
TX Phase Accuracy		< 5º RMS Phase error (burst)			< 5º RMS Phase error (burst)
Duplex spacing		45 MHz			80 MHz
Receiver sensitivity at antenna		< - 102 dBm			< - 102 dBm
connector
Transmitter output power at		Class 5			Class 1
antenna connector		0.8 W (29 dBm)			1W (30 dBm)

Automatic hand-over between GSM 850 and GSM 1900

1.2.2 SMS

The module supports the following SMS services:

∙Sending: MO, both PDU and Text mode supported.

∙Receiving: MT, both PDU and Text mode supported.

∙CBM is a service, in which a message is sent to all subscribers located in one or more specific cell(s) in the GSM network, for example, cell location information.

∙SMS STATUS REPORT according to GSM 03.40.

∙SMS COMMAND according to GSM 03.40.

The maximum length of an SMS message is 160 characters when using 7-bit encoding. For 8-bit data, the maximum length is 140 bytes.

The module does support upto 6 concatenated messages to extend this function.

1.2.3Voice calls

The GM47/48 offers the capability of MO and MT voice calls, as well as supporting emergency calls. In addition to this multiparty, call waiting and call deflection features are available. Some of these features are operator specific.

The module offers normal analogue input/output lines, analogue audio input/ output lines in differential modes, and digital audio interface, with the possibility of accessing internal points within the digital audio lines. Moreover, the GM 47/GM48 has embedded echo canceller and noise suppresser, which provides high quality audio.

The module supports both HR, FR and EFR voice coding, provided that EFR is available in the network.

1.2.4 Data

The module supports the following data protocols:

∙General Packet Radio Service (GPRS). The modules are Class B Terminals, which provides simultaneous activation and attach of GPRS and GSM services. The GM47/48 modules are GPRS 3+1 devices, which are capable of transmitting in one timeslot per frame (uplink), and receiving in a maximum of three timeslots per frame (downlink).

∙Circuit Switched Data (CSD). GM47/48 modules are capable to stablish a circuit switch data communication at 9.6 kbps, V42bis compression is not supported.

∙High Speed Circuit Switched Data (HSCSD). GM47/48 support HSCSD communication, with one timeslot per frame capacity in the uplink and two timeslots per frame capacity in the downlink (2+1).

1.2.5SIM Card

The module supports the connection of an external SIM Card with 3V and 5 V technology, via the 60-pin system connector. The module does not have an internal SIM holder.

1.2.6 Power consumption

	Stand-by1	Transmit/Operation
GSM 850 & 900 MHz	20 mA	275 mA (2A peak)
GSM 1800 & 1900 MHz	20 mA	250 mA (1.75A peak)

Note ! The power consumption during transmission is measured at maximum transmit power.

1.2.7Other features

∙Internet Ready Module

∙07.10 Multiplexing

∙Bluetooth interoperability

∙GPS interoperability

∙SIM application toolkit, class 2 release 96 compliant

1.2.8Development Kit

Sony Ericsson Mobile Communications provides the opportunity to test the module in a limited scale, before ordering a large quantity. With the development kit you can quickly get started with the module. The kit includes necessary accessories (software and hardware) that you will need for your test purposes. It also includes the following:

∙GSM module GM 47 or GM 48

∙Integrator’s Manual

∙Warranty Sheet

1 This figures are tentative data, subject to change.

The Integrator’s Manual provides you with all the information you need to be able to integrate the module with your application.

1.3Precautions

The GM47/48 should be handled like any mobile station. In the Integrators’ Manual you will find more information about safety and product care. In the Technical Data chapter in this document the environmental and electrical limits are specified. Never exceed these limits to ensure the module is not damaged.

1.4Abbreviations

Abbreviation	Explanation
BT	Bluetooth
CBS	Cell Broadcast Service
CBM	Cell Broadcast Messaging
CSD	Circuit Switch Data
DCE	Data Circuit Terminating Equipment
DTE	Data Terminal Equipment
DTMF	Dual Tone Multi Frequency
EFR	Enhanced Full Rate codec
EMC	Electro-Magnetic Compatibility
ETSI	European Telecommunications Standards Institute
FR	Full Rate codec
GPRS	General Packet Radio Service
GPS	Global Positioning System
GSM	Global System for Mobile Comunication
HR	Half Rate codec
HSCSD	High Speed Circuit Switched Data
ITU-T	International Telecommunication Union – Telecommunications
	Standardisation Sector
ME	Mobile Equipment
MO	Mobile Originated
MS	Mobile Station
MT	Mobile Terminated
PCM	Pulse Code Modulation
PDU	Protocol Data Unit
RLP	Radio Link Protocol
RF	Radio Frequency
RTC	Real Time Clock

SDP	Service Discovery Protocol
SMS	Short Message Service
SIM	Subscriber Identity Module
TBD	To Be Defined

2 Mechanical Description

2.1Interface Description

The picture below presents the conceptual mechanical design of the GM 47/48. The GM 47/48 are protected with AISI 304 Stainless Steel covers suitable to fulfil the environmental and EMC requirements. Dimensions, the position of the different connectors and mounting holes are shown in figure 2.2.

Figure 2.1 GM 47/48, view from the underside

2.2Physical Dimensions

Figure 2.2 Physical dimensions of GM 47/48

The measures are given in millimetre’s. See also chapter 6, Technical

Data.