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Sony Ericsson GT47 Technical Description

Gsm/gprs control terminal
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Technical Description
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Summary of Contents for Sony Ericsson GT47

  • Page 1 GT47/GT48 Technical Description Product Photo/Illustration...
  • Page 2 First edition (June 2003) 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.

  • Page 3: Table Of Contents

    Implementation ..................27 5. TCP/IP Stack......................29 Implementation ..................29 6. Operation......................... 30 Switching the GT47 On ................30 Switching the GT47 Off................30 Operating States/LED..................30 Power Save ..................31 Controller Mode ..................31 7. Technical Data ......................32 8.

  • Page 4: Introduction

    Alternatively, it can be used as a powerful standalone GPRS modem with its intrinsic TCP/IP stack. The GT47/48 is a self contained terminal with its own SIM card reader and standard connector interface, minimising the need for further hardware development.Its wide and useful range of IOs can be reconfigured to add...

  • Page 5: Main Features And Services

    • R&TTE type approved (GT47) 1.3 Main Features and Services The GT47 performs a set of telecom services (TS) according to GSM standard phase 2+, ETSI and ITU-T. The services and functions of the GT47 are implemented by issuing customised applications embedded on the device, or by AT commands issued internally, or over the RS232 serial interface.
  • Page 6 The maximum length of an SMS message is 160 characters when using 7- bit encoding. For 8-bit data, the maximum length is 140 characters. The GT47 supports up to 6 concatenated messages to extend this function. 1.3.3 Voice Services The GT47 offers the capability of mobile originated and mobile terminated voice calls, as well as supporting emergency calls.
  • Page 7 • GT47 is a Class B terminals, which provide simultaneous activation and attachment of GPRS and GSM services. GT47 is a GPRS class 8 (4+1) enabled devices, which are capable of transmitting in one timeslot per frame (up link), and receiving at a maximum of four timeslots per frame (down link).
  • Page 8 1. Control the GT47 via an external PC or micro-controller using AT commands; 2. Send and receive data. The GT47 supports the full set of AT commands according to GSM 07.05 and GSM 07.07. It also supports an extended set of Ericsson proprietary AT commands to add extra functionality.

  • Page 9: Service And Support

    1.5 Precautions The GT47 as a standalone item is designed for indoor use only. To use outdoors it must be integrated into a weatherproof enclosure. Do not exceed the environmental and electrical limits as specified in “Technical Data”, page 32.

  • Page 10: Mechanical Description

    2. MECHANICAL DESCRIPTION 2. Mechanical Description 2.1 Overview The pictures below show the mechanical design of the module along with the positions of the different connectors and mounting holes. The module case is made of durable PC/ABS plastic. Antenna connector Access to SIM card RS232 serial and...

  • Page 11: Physical Dimensions

    2. MECHANICAL DESCRIPTION 2.2 Physical Dimensions 11.0 55.3 11.0 77.4 Measurements are given in millimetres. See also “Technical Data”, page 32. LZT 123 7607 R1B...

  • Page 12: Electrical Description

    3. ELECTRICAL DESCRIPTION 3. Electrical Description All electrical connections to the module are protected in compliance with the standard air (8 kV) and contact (4 kV) Electrostatic Discharge (ESD) tests, of EN 61000-4-2. The module uses the following industry standard connectors: •...
  • Page 13 The GT47 switches on automatically once the 5V-32V dc supply voltage is applied. Note! The GT47 will not switch on if TO_IN is shorted to ground when the dc supply is applied. Note! For more information on switching the GT47 on and off please see section “6.
  • Page 14 1230 90 1900/1800 MHz Notes! Power Down Mode: DC power is applied but the GT47 is switched OFF. Standby Mode: The module is switched ON and camped on to the network. No call in progress. Talk Mode: The module is switched ON and a voice/data call is in progress.
  • Page 15 Digital Inputs The digital input IN-1 is available on pin 3 of the RJ12 connector. Its state is detected by IO5 of the embedded GR47 engine, see GT47-GR47 signal cross reference table, page 21. The distinction between low level and high level signals is at the voltage level of 3 V.

  • Page 16: Rs232 Serial And Extended I/O Interface

    3. ELECTRICAL DESCRIPTION 3.2 RS232 Serial and Extended I/O Interface The GT47 supports a standard 9 signal RS232 serial interface (EIA/TIA 574) on the 15 pin high density connector together with a range of configurabe I/Os including a second 4-wire RS232 interface.
  • Page 17 AT mode or binary mode (the first received data - AT or binary format - determines the operating mode). RD is an output signal that the GT47 uses to send data to the external application. TD is an input signal, used by the external application to send data to the GT47.
  • Page 18 The application must pull RTS high to enable transmission from the GT47. CTS indicates that the GT47 is ready to transmit data. The default level is high. You can define the exact behaviour of CTS through an AT command, and can select software or hardware flow control.
  • Page 19 DSR can only be reconfigured as a digital output with 3.2.5 Extended I/O Signals Please refer to GT47-GR47 signal cross reference table, page 21, for more information on the relationship between signal names and pin numbers of the GT47 and the embedded GR47 engine.
  • Page 20 < 2.8V. An external RS232 transceiver component may be used to convert the serial interface to standard RS232 electrical levels. The GT47’s +4.8 V output can be used to provide power for the transceiver. 3.2.7 Relationship between GT47 and GR47 signals...
  • Page 21 3. ELECTRICAL DESCRIPTION GT47 - GR47 Signal Cross-reference Table A GT47 / GT48 Relationship to the GR47/GR48 engine Dir. GT47 GT47 Primary GR47 Corresponding GR47 Signal Signal HD15 Connector IN-3 OUT-3 +4.8V IN-2 OUT-4 † ANA_IN ADC2 RJ12 Connector OUT-2 †...

  • Page 22: Audio Connector

    3.3 Audio Connector A 4-way RJ9 connector, as shown below, allows a telephone handset to be plugged into the GT47, giving access to the microphone and earpiece signals. The connector may also be used to drive other analogue audio sub- systems or devices.
  • Page 23 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.

  • Page 24: Antenna Connector

    3. ELECTRICAL DESCRIPTION 3.4 Antenna Connector The antenna connector allows transmission of radio frequency (RF) signals between the GT47 and an external customer-supplied antenna. The module is fitted with a 50 FME male coaxial jack as shown below. RF Signal...

  • Page 25: Sim Card Reader

    The SIM card reader incorporates a SIM presence switch which detects whether a SIM card is inserted. The full operation of the GT47 relies on a SIM card being inserted. Caution! Some GT47 functionality may be lost if you try to operate the control terminal without a SIM card.

  • Page 26: Software Updates

    3.7 Software Updates It is possible, and sometimes necessary, to update the module software. Updates must be carried out by a Sony Ericsson approved technician. Please contact your supplier for details (see “Service and Support”, page 9). LZT 123 7607 R1B...

  • Page 27: Embedded Applications

    4.1 Features Main features of embedded applications are as follows. • C based scripting language (Sony Ericsson specific) • Over the air upgrade of scripts (NOT GSM software) • Library of intrinsic functions • Multiple on radio device script support 4.2 Implementation...
  • Page 28 4. EMBEDDED APPLICATIONS 4.2.2 M2mpower IDE (Integrated Developers Environment) The IDE is a windows based package which allows the user to write, simulate, debug and download the application into a radio device with the embedded application (EA) software. The standard version is designed to run on Windows XP and 2000, other versions are available for 98 if required.

  • Page 29: Tcp/Ip Stack

    5. TCP/IP STACK 5. TCP/IP Stack An on board IP/TCP/UDP stack has been integrated into the software negating the need for the customer to implement one in their own code base. For early software releases this is only accessible through the embedded applications (see previous section) using intrinsic functions.

  • Page 30: Operation

    The GT47 is fully operational after 4 seconds. Logging onto a network may take longer than this and is outside the control of the GT47. Note! The GT47 will not switch on if TO_IN is shorted to ground when the dc supply is applied. 6.2 Switching the GT47 Off There are two ways to switch off the GT47 as described below.

  • Page 31: Power Save

    6. OPERATION 6.4 Power Save The GT47 can power down the main RS232 IC when not needed in order to minimise power consumption. The IC is powered up automatically at start-up but can be powered down by setting the output of IO2 on the embedded GR47 (pin22) to low via AT command or embedded application.

  • Page 32: Technical Data

    7. TECHNICAL DATA 7. Technical Data Up to 9.6 kbps, transparent and non- transparent HSCSD (2+1) Up to 28.8 kbps GPRS Class B (4+1) 85.6 kbps (subject to network support and - P channels terminal location) - Coding schemes CS1 - CS4 07.10 multiplexing protocol Text and PDU Point to point (MT/MO)
  • Page 33 SIM can store Phone book capacity Supply voltage range 5 - 32 V d.c. Frequency range GT47: EGSM 900 MHz and 1800 MHz (dual band) Maximum RF output 2 W (900 MHz) and 1 W (1800 MHz) power Antenna impedance Static sensitivity Better than –102 dBm...
  • Page 34 7. TECHNICAL DATA Voltage type Support for 3 V and 5 V SIM cards Plug-in power supply RJ12 6-way connector and extended I/O Handset audio connector RJ9 4-way Antenna connector FME male RS232 port high density socket, 15 pin Green Length 77.4 mm Width...
  • Page 35 7. TECHNICAL DATA Operating temperature –30 °C to +75 °C range Storage temperature –40 °C to +85 °C range Relative humidity 5 - 95 %, non-condensing Stationary vibration, Displacement: 7.5 mm sinusoidal Acceleration amplitude: 20 m/s² and 40 m/s² Frequency range: 2-8 Hz, 8-200 Hz, 200-500 Hz Stationary vibration, Acceleration spectral density (m²/s²): random...

  • Page 36: At Command Summary

    (TE) to the terminal adaptor (TA). The command line consists of a string of alphanumeric characters. It is sent to the GT47 to instruct it to perform the commands specified by the characters. As the list of AT commands supported occasionally changes, it is wise to check the latest listing with Sony Ericsson before starting any software development (see “Service and Support”, page 9).
  • Page 37 8. AT COMMAND SUMMARY AT Command Description AT*E2SMSRI Ring Indicator for SMS AT*E2SPI Serial Peripheral Interface AT*E2SPN M2M Service Provider Indication AT*E2SSD M2M Supplementary Service Dispatch AT*E2SSI M2M Supplementary Service Indications AT*E2SSN Ericsson M2M SIM Serial Number AT*E2STKC M2M STK Set Up Call AT*E2STKD M2M STK Display Text AT*E2STKG...
  • Page 38 8. AT COMMAND SUMMARY AT Command Description AT*EPNR Ericsson Read SIM Preferred Network AT*EPNW Ericsson Write SIM Preferred Network AT*ESAG Ericsson Add to Group AT*ESCG Ericsson Create Group AT*ESCN Ericsson Set Credit Card Number AT*ESDG Ericsson Delete Group AT*ESDI Ericsson Delete Group Item AT*ESGR Ericsson Group Read AT*ESIL...
  • Page 39 8. AT COMMAND SUMMARY AT Command Description AT+CGQMIN Quality of Service Profile (Minimum Acceptable) AT+CGQREQ Quality of Service Profile (Requested) AT+CGREG GPRS Network Registration Status AT+CGSMS Select Service for MO SMS Messages AT+CGSN Read MS Product Serial Number Identification AT+CHLD Call Hold and Multiparty AT+CHSC HSCSD Current Call Parameters...
  • Page 40 8. AT COMMAND SUMMARY AT Command Description AT+COPS Operator Selection AT+CPAS ME Activity Status AT+CPBF Phonebook Find AT+CPBR Phonebook Read AT+CPBS ME Storage AT+CPBW Phonebook Write AT+CPIN PIN Control AT+CPMS Preferred Message Storage AT+CPUC Price Per Unit and Currency Table AT+CPWD Change Password AT+CR...
  • Page 41 8. AT COMMAND SUMMARY AT Command Description AT+ILRR Cable Interface Local Rate Reporting AT+IPR Cable Interface Port Command AT+VTS DTMF and Tone Generation AT+WS46 Mode Selection Answer Dial Command Echo Hang up Identification Information Monitor Speaker Loudness Monitor Speaker Control Return to Online Data Mode Select Pulse Dialling Result Code Suppression...

  • Page 42: Abbreviations And Definitions

    9. ABBREVIATIONS AND DEFINITIONS 9. Abbreviations and Definitions Abbreviation Explanations Cell Broadcast Message Cell Broadcast Service Circuit Switched Data Data Circuit Terminating Equipment Data Terminal Equipment DTMF Dual Tone Multi Frequency Enhanced Full Rate Electro-Magnetic Compatibility ETSI European Telecommunication Standards Institute Full Rate GPRS General Packet Radio Service...
  • Page 43 9. ABBREVIATIONS AND DEFINITIONS Abbreviation Explanations Terminal Adapter Terminal Equipment Telecommunication Services USSD Unstructured Supplementary Service Data LZT 123 7607 R1B...

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