Telit Wireless Solutions GT864-3G User manual

GT864-3G Terminal
Product Description
80269ST10071a Rev.0 - 14/09/09

GT864-3G Terminal Product Description
80269ST10071a Rev.0 - 14/09/09
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 2 of 41
This document is related to the following products:
GT864-3G

GT864-3G Terminal Product Description
80269ST10071a Rev.0 - 14/09/09
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Contents
1Overview.......................................................................................................................6
2General Product Description.......................................................................................7
2.1Dimensions .........................................................................................................................7
2.2Weight..................................................................................................................................8
2.3Installation...........................................................................................................................9
2.4Environmental requirements.............................................................................................9
2.4.1Temperature range ...................................................................................................................... 9
2.4.2RoHS compliance ........................................................................................................................ 9
2.4.3Documentation and User Guides ................................................................................................ 9
2.5GT864-3G Terminal Interfaces.........................................................................................10
2.6Power Supply....................................................................................................................12
2.6.1Supply voltage requirements .....................................................................................................12
2.6.2Power Connector ....................................................................................................................... 12
2.6.3Mini USB type connector ........................................................................................................... 14
2.7Serial Ports........................................................................................................................15
2.7.1RS232 standard interface connector ......................................................................................... 15
2.7.2Serial Data ................................................................................................................................. 16
2.7.3The PC as Data Terminal Equipment (DTE) ............................................................................. 16
2.8SIM Interface Characteristics ..........................................................................................17
2.8.1SIM card precautions................................................................................................................. 17
2.9Antenna .............................................................................................................................18
2.9.1General ...................................................................................................................................... 18
2.9.2Antenna type.............................................................................................................................. 18
2.9.3Antenna placement.................................................................................................................... 18
2.10Operating Frequency .......................................................................................................20
2.11Transmitter output power................................................................................................20
2.12Reference sensitivity........................................................................................................21
2.13User Interface....................................................................................................................22
2.13.1Switching the GT864-3G Terminal ON and OFF....................................................................... 22
2.13.2SMS ........................................................................................................................................... 23
2.13.3Data/fax transmission ................................................................................................................ 23
2.13.4Phonebook................................................................................................................................. 23
2.13.5Characters management ...........................................................................................................23
2.13.6LED Indicators ........................................................................................................................... 23
2.13.7Automatic answer (Data or FAX)............................................................................................... 24
2.13.8Supplementary services (SS) .................................................................................................... 24
3Software Features......................................................................................................25
3.1Enhanced EASY GPRS Extension ..................................................................................25
3.1.1Overview .................................................................................................................................... 25
3.1.2EASY GPRS definition............................................................................................................... 26
3.2CMUX.................................................................................................................................27

GT864-3G Terminal Product Description
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3.2.1Product architecture................................................................................................................... 27
3.2.2Implementation feature and limitation........................................................................................ 27
3.3SAP: SIM Access Profile..................................................................................................28
3.3.1Product architecture................................................................................................................... 28
3.3.2Implementation feature .............................................................................................................. 28
3.3.3Remote SIM Message Command Description .......................................................................... 28
3.4PFM (Premium FOTA Management) ...............................................................................29
3.4.15.2.1 FOTA (Firmware Over The Air) ........................................................................................ 29
3.5AT Command Interface ....................................................................................................30
4Service and SW / Firmware Update ..........................................................................31
4.1Xfp Tool .............................................................................................................................31
4.1.1Step-by-Step Upgrade Procedure ............................................................................................. 31
5Conformity Assessment Issues................................................................................34
5.1Declaration of Conformity ...............................................................................................35
6GT864-3G Terminal Accessories table.....................................................................36
7SAFETY RECOMMENDATIONS.................................................................................37
7.1Disposal of this product in the European Union...........................................................38
8List of Acronyms........................................................................................................39
9Document Change Log..............................................................................................41

GT864-3G Terminal Product Description
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DISCLAIMER
The information contained in this document is the proprietary information of Telit Communications
S.p.A. and its affiliates (“TELIT”). 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 Telit, is strictly prohibited.
Telit makes every effort to ensure the quality of the information it makes available. Notwithstanding
the foregoing, Telit does not make any warranty as to the information contained herein, and does
not accept any liability for any injury, loss or damage of any kind incurred by use of or reliance
upon the information.
Telit disclaims any and all responsibility for the application of the devices characterized in this
document, and notes that the application of the device must comply with the safety standards of
the applicable country, and where applicable, with the relevant wiring rules.
Telit reserves the right to make modifications, additions and deletions to this document 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 document.
All rights reserved.
© 2009 Telit Communications S.p.A.

GT864-3G Terminal Product Description
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1 Overview
Aim of this document is the description of features, functions and interfaces of the Telit GT864-3G
Terminal Family which is a complete modem solution for wireless m2m applications based on the
single-band 2100MHz UMTS/HSDPA. Terminal core engine is Telit module UC864-E also fully
backward compatible with existing EDGE and GSM/GPRS networks through accomplished quad-
band radios. Since this Terminal is ready for use as a subsystem for wireless connections, Safety
Information and basic instructions for taking the GT864-3G Terminals into operation are included,
as well as guidance to other documentation and practical hints for the first steps.
The GT864-3G Terminals can be remotely controlled by AT command and is compliant with:
1. Hayes standard AT command set
2. 3gpp TS 27.007 specific AT command and WCDMA/GPRS specific commands.
3. 3gpp TS 27.005 specific AT commands for SMS (Short Message Service) and
CBS (Cell Broadcast Service)
4. FAX Class 1 compatible commands
Moreover, the Telit GT864-3G supports also Telit proprietary AT commands for special purposes.
For a more information about AT commands supported by GT864-3G please refer to document
UC864 AT Commands Reference Guide, code 80304ST10041a.
EASY GPRS® Embedded
Telit GT864-3G embeds TCP/IP stack and DNS query protocol. Static and dynamic IP allocation,
PPP and UDP as well as FTP Client are supported. Developers just need to add Telit Proprietary
AT commands to establish a TCP/IP connection through the WCDMA/EDGE/GPRS network.
EASY FREQUENCY SCAN® Function
Telit GT864-3G includes a dedicated set of AT commands to scan all the GSM channels, reporting
all available parameters. With EASY FREQUENCY SCAN® the GSM network coverage at the
location of the GT864-3G Terminal can be examined even without inserted SIM in order to select
the provider with the best field strength, the most channels or base transceiver stations and to
optimize the terminal position.

GT864-3G Terminal Product Description
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2 General Product Description
2.1 Dimensions
The Telit GT864-3G dimensions are:
•Overall dimensions: 77 x 67 x 26 mm
See the following figure:
Top view

GT864-3G Terminal Product Description
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Bottom view
2.2 Weight
The net weight of the Telit GT864-3G Terminal is 90 grams.

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2.3 Installation
Before securing the modem take into account the amount of additional space required for the
mating connectors and cables that will be used in the application.
•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 GT864-3G Terminal to the host application using two 3mm diameter
pan-head screws.
2.4 Environmental requirements
The Telit GT864-3G terminal is compliant with the applicable 3gpp reference documentation TS
25.101 Release 2004-03.
2.4.1 Temperature range
GT864-3G Note
–20°C ÷+55°C Full function; Full specification
compliance
Operation temperature
–30°C ÷+75°C Full function*
Temperature in not functional
conditions –40°C ÷+85°C
* Temperature outside the –20°C ÷+55°C range can affect the sensitivity, the performance and the MTBF of
the module.
2.4.2 RoHS compliance
The GT864-3G Terminal is fully RoHS (Restriction of Hazardous Substances) compliant to EU
regulation.
2.4.3 Documentation and User Guides
In order to get more detailed information on hardware and software features please consult
different user guides for UC864. They’re available on www.telit.com >Products >UMTS >UC864.

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2.5 GT864-3G Terminal Interfaces
The interfaces of the GT864-3G Terminal are the following industry standard connectors
distributed on the front and rear panels, see figure. The GT864-3G Terminal case is made of
durable PC/ABS plastic.
Access to
SIM card
holder
mounting
holes
USB 2.0 connector
Power connector

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•RJ11 6-way (power connector)
•Mini USB (USB 2.0)
•SIM card reader
•FME male coaxial jack (antenna connector)
•Sub-D socket, 9 pin (RS232 serial port)

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2.6 Power Supply
2.6.1 Supply voltage requirements
The DC power supply must be connected to the POWER input:
•Input voltage range 5 - 32V DC
•Nominal Voltage 12V DC
Application of the supply voltage does not switch the modem on. To do so an additional active-high
control signal, TO_IN, must be applied for > 1s.
VCC and GND are reverse-polarity and over-voltage protected. Please note: this does not apply for
the GND on the antenna connector if this coax GND/shield are connected to your applications
ground-plane.
The measurement was realised by 4 different Voltages (5 V, 12V, 24 V and 32 V).
GT864-3G @ 5V @12V @ 24V @ 32V
Terminal switched off160μA 150μA 308μA 415μA
On, network connection (Idle
mode)227mA 10mA 6mA 5mA
On, network connection (Idle
mode)340mA 15mA 9mA 7mA
NOTE: In case that power supply equipment is to be ordered, its conformity needs to be verified
with the mains supply voltage, frequency, connector type and other national requirements (e.g.
certifications) in the countries of its use.
2.6.2 Power Connector
An RJ11 6-way connector, as shown and described below, serves as a means of supplying and
controlling DC power to the modem.
1Off means: GT864 powered via VCC; switched off via HR_IN, DTR low
2high impedance RS232
3impedance 4,7kΩ

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Pin Description
1 VCC
2 -
3 HR_IN
4 TO_IN
5 -
6 GND
Signals of Power Connector:
PIN Signal Direction Limits Description
1 VCC Input 5 – 32V Positive power input, DC
2 Not connected Not
connected
Not
connected Not connected
3 HR_IN Input 5 – 32V
Active high control line used to switch off
VIH > 5V, VIL < 0.5V
Power off: 1s < t < 2s
4 TO_IN Input 5 – 32V
Positive edge triggered signal; used to switch
on the modem
VIH > 5V, VIL < 0.5V
Power on: t > 1s
5 Not connected Not
connected
Not
connected Not connected
6 GND Input - Negative power (ground) input and return
path for TO_IN and HR_IN

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2.6.3 Mini USB type connector
The modem supports a standard USB 2.0 interface for AT-commands. The maximum baud rate to
communicate with the GT864-3G Terminal is up to 12 Mbit/s.
Drivers for several operating systems (e.g. Windows/Linux) are available on the telit official web
site www.telit.com in the download zone under software tools for UC864-E.
If you have not received your personal login code, pls. contact: [email protected]
GT864-3G Pin Layout for Mini USB connector:
Pin Signal
1 VUSB
2 D -
3 D +
4 ID
5 GND
Pin 5 Pin 1

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2.7 Serial Ports
The RS232 standard interface serves to connect a PC, Data Terminal Equipment (DTE) or an
application, which acts as host controller of the GT864-3G Terminal with all its functions. Through
the RS232 interface it can be used as GSM/GPRS/UMTS modem for sending and receiving of
SMS, Data and Fax calls.
2.7.1 RS232 standard interface connector
Connector type on the terminal is:
•standard RS232 Sub-D 9pin female
•Maximum baud rate to communicate with the GT864-3G is 230,4 kbit/s
The electrical characteristics of the serial port signals are shown below:
PIN Signal Direction Voltage levels Description
1 DCD Output > + 4 V
< - 4 V Data carrier detect
2 RD Output > + 4 V
< - 4 V Received data
3 TD Input > + 2,4 V
< 0.8 V Transmitted data
4 DTR Input > + 4 V
< 0.8 V Data terminal ready
5 GND - 0 V Ground connection
6 DSR Output > + 4 V
< - 4 V Data set ready
7 RTS Input > + 2,4 V
< 0.8 V Request to send
8 CTS Output > + 4 V
< - 4 V
Clear to send
9 RI Output > + 4 V
< - 4 V Ring indicator
To connect to a PC as DTE, a pin-to-pin, 9 pin cable with D9 type connectors on both sides is
needed (1 male & 1 female). Shielding of this cable is recommended and its length shall not
exceed 3m.

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2.7.2 Serial Data
GT864-3G does not support autobauding. Users have to set the right speed for serial
communication before device initialization. If the right speed is set, the device responds with OK.
The default baudrate is 115200.
• send command AT+IPR=<rate><cr>
• wait for OK response
where rate is the port speed and can be 0, 300,1200,2400,4800,9600,19200,38400,57600,115200,
230400 bps.
2.7.3 The PC as Data Terminal Equipment (DTE)
The software application for using the PC RS232 standard serial interface (COM-port) as Data
Terminal Equipment (DTE) is usually Hyper Terminal. Connect using the COM-port to which the
GT864-3G Terminal is connected with the following settings:
For more information about which AT Commands are implemented on the GT864-3G Terminal can
be found in the “UC864 Software User Guide” and “UC864 AT Commands Reference Guide”,
available on www.telit.com
NOTE: We remind you that when you consult the AT Commands Reference Guide referring to the
UC864 please consider that due to the limitations of the GT864-3G Terminal, such as no access to
GPIO, not all AT Commands can be implemented.

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2.8 SIM Interface Characteristics
The GT864-3G Terminal is fitted with a SIM card reader designed for 1.8V and 3V SIM cards. It is
the flip-up type which is lockable in the horizontal position and is accessed through a removable
panel.
The Telit GT864-3G Terminal has an enhanced SIM card reader with a sensor that allows
detecting of a “hot” removal of the SIM, therefore the SIM can be extracted and re-inserted while
the module is still on.
NOTE: On the Telit GT864-3G Terminal the sensing of a hot removal of the SIM is not supported
during power saving mode (AT+CFUN=5).
2.8.1 SIM card precautions
Before handling the SIM card in your application, ensure that you are not charged with static
electricity. Use proper precautions to avoid electrostatic discharges.
•When the SIM card hatch is opened, the SIM card connectors lie exposed under the SIM
card holder. Caution! Do not touch these connectors! If you do, you may release an electrical
discharge that could damage the modem or the SIM card.
•When designing your application, the SIM card’s accessibility should be taken into
account. We always recommend that you have the SIM card protected by a PIN code. This
will ensure that the SIM card cannot be used by an unauthorized person.

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2.9 Antenna
2.9.1 General
The antenna is the component in your system that maintains the radio link between the network
and the modem. Since the antenna transmits and receives electromagnetic energy, its efficient
function will depend on:
•the type of antenna (for example, circular or directional);
•the placement of the antenna;
•communication disturbances in the vicinity in which the antenna operates.
In the sections below, issues concerning antenna type, antenna placement, antenna cable, and
possible communication disturbances are addressed. In any event, you should contact your local
antenna manufacturer for additional information concerning antenna type, cables, connectors,
antenna placement, and the surrounding area. You should also determine whether the antenna
needs to be grounded or not. Your local antenna manufacturer might be able to design a special
antenna suitable for your application.
2.9.2 Antenna type
Make sure that you choose the right type of antenna for the modem. Consider the following
requirements:
Frequency range
UMTS/HSDPA 2100 MHz
GSM 850/900 MHz
GSM 1800/1900 MHz
Depending by frequency band(s) provided by
the network operator, the customer shall use
the most suitable antenna for that/those band(s)
Bandwidth
80 MHz in EGSM 900, 70 MHz in GSM 850,
170 MHz in DCS, 140 MHz PCS band, 250MHz in
WCDMA2100 band
Gain < 3dBi
Impedance 50 ohm
Input power > 33dBm (2W) peak power in GSM
> 24dBm Average power in WCDMA2100
VSWR absolute max. <= 10:1
VSWR recommended <= 2:1
2.9.3 Antenna placement
The antenna should be placed away from electronic devices or other antennas. The recommended
minimum distance between adjacent antennas, operating in a similar radio frequency band, is at
least 50cm. If signal strength is weak, it is useful to face a directional antenna at the closest radio
base station. This can increase the strength of the signal received by the modem. The modem’s
peak output power can reach 2W. RF field strength varies with antenna type and distance. At 10cm

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from the antenna the field strength may be up to 70V/m and at 1m it will have reduced to 7V/m. In
general, CE-marked products for residential and commercial areas, and light industry can
withstand a minimum of 3V/m.
2.9.3.1 The antenna cable
Use 50Ωimpedance low-loss cable and high-quality 50Ωimpedance connectors (frequency range
up to 2GHz) to avoid RF losses. Ensure that the antenna cable is as short as possible. The
Voltage Standing-Wave Ratio (VSWR) may depend on the effectiveness of the antenna, cable and
connectors. In addition, if you use an adapter between the antenna cable and the antenna
connector, it is crucial that the antenna cable is a high-quality, low-loss cable. Minimize the use of
extension cables, connectors and adapters. Each additional cable, connector or adapter causes a
loss of signal power.
2.9.3.2 Antenna Connector
The Telit GT864-3G Terminal antenna connector allows transmission of radio frequency (RF)
signals between the modem and an external customer-supplied antenna. The modem is fitted with
a 50ΩFME male coaxial jack.
Description of antenna connector parameters:
Parameter Limit Description
Nominal impedance 50Ω
Output Power
2 Watt peak (Class 4)
1 Watt peak (Class 1)
0.25 Watt Peak (Class 3)
GSM900/850 MHz
GSM1800/1900 MHz
UMTS/HSDPA 2100MHz
2.9.3.3 Antenna precautions
If the antenna is to be mounted outside, consider the risk of lightning. Follow the instructions
provided by the antenna manufacturer.
•Never connect more than one modem to a single antenna. The modem can be damaged
by radio frequency energy from the transmitter of another modem.
•Like any mobile station, the antenna of the modem emits radio frequency energy. To
avoid EMI (electromagnetic interference), you must determine whether the application itself,
or equipment in the application’s proximity, needs further protection against radio emission
and the disturbances it might cause. Protection is secured either by shielding the surrounding
electronics or by moving the antenna away from the electronics and the external signals
cable.
•The modem and antenna may be damaged if either come into contact with ground
potentials other than the one in your application. Beware, ground potential are not always
what they appear to be.

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2.10 Operating Frequency
The operating frequencies in GSM, DCS, PCS, WCDMA modes are conform to the GSM
specifications.
Mode Freq. TX (MHz) Freq. RX (MHz) Channels (ARFC) TX - RX offset
890.0 - 914.8 935.0 - 959.8 0 – 124
E-GSM-900 880.2 - 889.8 925.2 - 934.8 975 - 1023
45 MHz
45 MHz
GSM-850 824.2 – 848.8 869.2 – 893.8 128 - 251 45 MHz
DCS-1800 1710.2 - 1784.8 1805.2 - 1879.8 512 – 885 95 MHz
PCS-1900 1850.2 - 1909.8 1930.2 - 1989.8 512 - 810 80 MHz
WCDMA-2100 1922.4 - 1977.6 2112.4 - 2167.6 Tx : 9612-9888
Rx : 9662-9938 80MHz
2.11 Transmitter output power
WCDMA2100
The GT864-3G transceiver modem in WCDMA-2100 (2100 MHz) operating mode are class 3 in
accordance with the specifications which determine the nominal 0.25W peak RF power (+24dBm)
on 50 Ohm.
GSM–850 / 900 (GSM/GPRS mode)
The GT864-3G transceiver modem in GSM–850/900 operating mode are class 4 in accordance
with the specification which determine the nominal 2W peak RF power (+33dBm) on 50 Ohm.
GSM850/900(EGPRS mode)
The GT864-3G transceiver modem in GSM850/900(850 ,900 MHz) operating mode are class E2
in accordance with the specifications which determine the nominal 0.5W peak RF power (+27dBm)
on 50 Ohm.
DCS–1800 / PCS-1900 (GSM/GPRS mode)
The GT864-3G transceiver modem in DCS–1800/PCS-1900 operating mode are of class 1 in
accordance with the specifications which determine the nominal 1W peak RF power (+30dBm) on
50 Ohm.
DCS1800/PCS1900(EGPRS mode)
The GT864-3G transceiver modem in DCS1800/PCS1900(1800 ,1900 MHz) operating mode are
class E2 in accordance with the specifications which determine the nominal 0.4W peak RF power
(+26dBm) on 50 Ohm.