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Summary of Contents for Sony Ericsson GM29
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Page 1: Technical Description
GM29 Technical Description Product Photo/Illustration... - Page 2 Sony Ericsson Mobile Communications International publishes this manual without making any warranty as to the content contained herein. Further Sony Ericsson Mobile Communications International 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.
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Page 3: Table Of Contents
Contents 1. Introduction......................5 Description ..................... 5 Highlights....................... 5 Main Features and Services ................6 Service and Support ..................9 Precautions ..................... 9 Abbreviations ....................9 2. Mechanical Description ..................11 Overview ...................... 11 Physical Dimensions ..................12 3. Electrical Description .................... 13 Power Connector.................. - Page 4 GM29 TECHNICAL DESCRIPTION LZT 123 7359 R1B...
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Page 5: Introduction
SIM card reader making it easy and quick to integrate. As well as providing a standard RS232 serial communication interface the GM29 also has an audio interface allowing an analogue handset to be connected. When the GM29 is integrated into an external application, a wireless communicaions system is created. -
Page 6: Main Features And Services
2+, ETSI and ITU-T. The services and functions of the modem are implemented by issuing AT commands over the RS232 serial interface. 1.3.1 Types of Mobile Station The GM29 is a dual band serial modem with the GSM radio characteristics shown in the table below. GM29 GSM900... - Page 7 1.3.5 Fax The GM29 allows fax transmissions to be sent and received by commercial fax software installed on the application computer. Group 3 fax Classes 1 and 2 are supported.
- Page 8 RS232 signalling protocol operates between the modem and the external application. Control of the GM29 is by the external application, via the RS232 serial interface, using a set of AT commands. The GM29 supports the full set of AT commands according to GSM 07.05 and GSM 07.07.
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Page 9: Service And Support
1.5 Precautions The GM29 as a standalone item is designed for indoor use only. To use outside it must be integrated into a weatherproof enclosure. Do not exceed the environmental and electrical limits as specified in “Technical Data”, page 23. - Page 10 GM29 TECHNICAL DESCRIPTION Abbreviation Explanations ITU-T International Telecommunication Union - Telecommunications Standardisation Sector Mobile Equipment Mobile Originated Mobile Station Mobile Terminated Protocol Data Unit Radio Link Protocol Radio Frequency Real Time Clock Subscriber Identity Module Short Message Service Terminal Adapter...
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Page 11: Mechanical Description
2. MECHANICAL DESCRIPTION 2. Mechanical Description 2.1 Overview The pictures below show the mechanical design of the GM29 along with the positions of the different connectors and mounting holes. The GM29 case is made of durable PC/ABS plastic. Antenna connector... -
Page 12: Physical Dimensions
GM29 TECHNICAL DESCRIPTION 2.2 Physical Dimensions 11.0 55.3 11.0 77.4 Measurements are given in millimetres. See also “Technical Data”, page 23. LZT 123 7359 R1B... -
Page 13: Electrical Description
3. ELECTRICAL DESCRIPTION 3. Electrical Description 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) •... -
Page 14: Audio Connector
The connector may also be used to drive other analogue audio sub-systems or devices. The GM29 is configured to work with a range of handsets. If necessary, changes can be made to the characteristics of the audio interface by sending the modem appropriate AT commands. - Page 15 3. ELECTRICAL DESCRIPTION Audio signal descriptions are listed below: Signal Description MICN Microphone negative input BEARN Earpiece negative output BEARP Earpiece positive output MICP Microphone positive input MICP and MICN are balanced differential microphone input signals. These inputs are compatible with an electret microphone. BEARP and BEARN are the speaker output signals.
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Page 16: Antenna Connector
GM29 TECHNICAL DESCRIPTION 3.3 Antenna Connector The antenna connector allows transmission of radio frequency (RF) signals between the modem and an external customer-supplied antenna. The modem is fitted with a 50Ω, FME male coaxial jack as shown below. RF Signal... -
Page 17: Sim Card Reader
3. ELECTRICAL DESCRIPTION 3.4 SIM Card Reader The GM29 is fitted with a SIM card reader designed for 3V and 5V SIM cards. It is the flip-up type which is lockable in the horizontal position and is accessed through a removable panel as shown below. -
Page 18: Rs232 Serial Port
The modem supports a standard RS232 serial interface (EIA/TIA 574) via its 9 pin Sub-D connector, shown below. In line with serial communication terminology the GM29 serial modem should be considered as the data circuit-terminating equipment (DCE) and the external application or computer as the data terminating equipment (DTE). - Page 19 3.5.2 Serial Data Signals - RD, TD The default baud rate is 9.6kbps, however higher bit rates up to 460kbps are supported and can be set by AT commands. At start-up the GM29 transmits and receives data at the default rate of 9.6kbps in either standard AT mode or binary mode (the first received data - AT or binary format - determines the operating mode).
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Page 20: Real Time Clock
You can define the exact behaviour or RI with an AT command. 3.6 Real Time Clock The GM29 contains a real time clock (RTC) to maintain accurate timekeeping and to enable “timestamping” of messages. The RTC is powered all the time that the modem is turned on. When the modem is powered off, a stored energy device within the GM29 provides back-up power to maintain the RTC for at least 7 hours. -
Page 21: Operation
4. OPERATION 4. Operation 4.1 Switching On the Modem 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. - Page 22 GM29 TECHNICAL DESCRIPTION Operating state After switching on the modem On after 4s Switch off or power removed Standby or talk Flashing No network, network search, no SIM card, no PIN entered LZT 123 7359 R1B...
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Page 23: Technical Data
5. TECHNICAL DATA 5. Technical Data Data Features Up to 9.6kbps, transparent and non- transparent HSCSD (2+1) Up to 19.2kbps GPRS Class B (4+1) 85.6kbps (subject to network support and - P channels terminal location) - Coding schemes CS1 - CS4 07.10 multiplexing protocol Short Message Service Features Text and PDU... - Page 24 <350mA (<1.75A peak) Note! The power consumption during transmission is measured at maximum transmitted power. Radio Specifications Frequency range GM29: EGSM 900MHz and 1800MHz (dual band) Maximum RF output 2W (900MHz) and 1W (1800MHz) power Antenna impedance 50Ω Static sensitivity Better than –102dBm...
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Page 25: Mechanical Specification
5. TECHNICAL DATA Audio Specifications Parameter Limit Output level (differential) ≥4.0V Output level (dynamic load = 32Ω) ≥2.8V Distortion at 1kHz and maximum output level ≤5% Offset, BEARP to BEARN ±30mV Ear-piece mute-switch attenuation ≥40dB Ear piece model Impedance Tolerance Dynamic ear piece [32Ω... -
Page 26: Environmental Specifications
GM29 TECHNICAL DESCRIPTION Environmental specifications Operating temperature –25°C to +55°C range Storage temperature –40°C to +85°C range Relative humidity 5 - 95%, non-condensing Stationary vibration, Displacement: 7.5mm sinusoidal Acceleration amplitude: 20m/s² and 40m/s² Frequency range: 2-8Hz, 8-200Hz, 200-500Hz Stationary vibration, Acceleration spectral density (m²/s²):... -
Page 27: At Command Summary
As the list of AT commands supported ocassionally changes, it is wise to check the latest listing with Sony Ericsson before starting any software development (see “Service and Support”, page 9). Control and Identification... -
Page 28: Network Services
GM29 TECHNICAL DESCRIPTION Network Services Alternate line service (ALS) AT*EALS, AT*ELIN, AT*ESLN Customer service profile AT*ECSP Call forwarding AT+CCFC, AT*EDIF Calling/called number AT+CLIP, AT+CLIR, AT*EIPS, AT+COLP identification Preferred networks AT*EPNR, AT*EPNW Advice of charge AT+CACM, AT+CAMM, AT+CAOC, AT+CPUC Calling cards... -
Page 29: Interface Commands
6. AT COMMAND SUMMARY Phonebook Read/write/find AT+CPBS, AT+CPBR, AT+CPBW, AT+CPBF Groups AT*ESAG, AT*ESCG, AT*ESDG, AT*ESDI, AT*ESGR Settings AT*E2PBCS Clock Time and date AT+CCLK, AT+CTZU, AT*EDST Interface Commands Flow control AT&C, AT&D, AT+IFC, AT+IPR S registers ATS0, ATS10, ATS2, ATS3, ATS4, ATS5, ATS6, ATS7, ATS8 Response control AT+ILRR, ATE, ATV, ATQ, AT+CSCS... -
Page 30: Network Information
GM29 TECHNICAL DESCRIPTION Upgrading AT+CHSU Service type AT+CBST Parameters AT+CHSC, AT+CHSD Configuration AT+CHSN Network Information Cell information AT*E2CD Engineering mode AT*E2EMM, AT*E2NBTS SIM Application Toolkit Set up call AT*E2STKC Display text AT*E2STKD Get inkey AT*E2STKG Get input AT*E2STKI Select item...