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I65/I56I HARDWARE DESCRIPTION VERSION 1.00
Cautions
Information furnished herein by FALCOM is believed to be accurate
and reliable. However, no responsibility is assumed for its use. Also
the information contained herein is subject to change without notice.
Please, read carefully the safety precautions.
If you have any technical questions regarding this document or the
product described in it, please contact your vendor.
General information about FALCOM and its range of products is
available at the following internet address: http://www.falcom.de/
Trademarks
Some mentioned products are registered trademarks of their respective
companies.
Copyright
The I56/I56i hardware description is copyrighted by FALCOM
GmbH with all rights reserved. No part of this user’s guide may be
produced in any form without the prior written permission of
FALCOM GmbH.
FALCOM GmbH.
No patent liability is assumed with respect to the use of the information
contained herein.
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I65/I56I HARDWARE DESCRIPTION VERSION 1.00
0 Introduction
0.1 General
The I56/I56i is designed for use on any GSM network in the world. The
I56/I56i is a tri band GSM/GPRS engine that works on three frequencies
GSM 850 MHz, DCS 1800 MHz and PCS 1900 MHz.
This full type approved integrated modem constitutes a self contained, fully
integrated implementation of the GSM/GPRS. I56/I56i features GPRS class
B, class 10 (making download at speeds up to 85 kbps) and supports the
GPRS coding schemes CS-1, CS-2, CS-3 and CS-4.
The I56/I56i module incorporates all you need to create high-performance
GSM/GPRS solutions; base band processor, power supply ASIC, complete
radio frequency circuit including a power amplifier, internal and external
SIM interfaces and an antenna interface as well.
The physical interface to the cellular application is made through a board-toboard connector. It consists of 50 pins, required for controlling the unit,
transferring data and audio signals and providing power supply lines.
The external dual band or triple band antenna can directly be connected to
the integrated 50 connector on the side of module.
The I56/I56i is a mobile station for transmission of voice, data calls and
FAX as well as short messages (SMS - Short Message Service) in GSM
Network.
For battery powered applications, I56/I56i features a charging control which
can be used to charge a Li-Ion battery. The charging circuit must be
implemented external the module on your application platform.
To control the GSM module there is an advanced set of AT commands
according to GSM ETSI (European Telecommunications Standards
Institute) 07.07 and 07.05 implemented.
Figure 1: Views (front and back side) of I56/I56i
Users are advised to proceed quickly to the „Security“ chapter and read the
hints carefully.
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I65/I56I HARDWARE DESCRIPTION VERSION 1.00
0.2 The difference between I56 and I56i modules
I56 The I56 is a Tri-band device which operates in three frequencies
GSM 850 MHz, DCS 1800 MHz and PCS 1900 MHz, and is
available to use in the American Networks. However, the I56
module contains 1800 MHz GSM functions that is not operational
(must not be used) in U.S. Territories. This filing is only applicable
for 850MHz GSM/1900 MHz PCS operations, whereby only these
frequencies (850MHz GSM/1900 MHz PCS) are possible to be used
in U.S. Territories.
I56i
The I56i is also a Tri-band device which operates on three
frequencies GSM 850 MHz, DCS 1800 MHz and PCS 1900 MHz,
and is available to use in the American Networks. However, the I56i
module contains 1800 MHz GSM functions that is not operational
(must not be used) in U.S. Territories. This filing is only applicable
for 850MHz GSM/1900 MHz PCS operations, whereby only these
frequencies (850MHz GSM/1900 MHz PCS) are possible to be used
in U.S. Territories. The I56i provides a specific soft- and hardware
(internal TCP/IP stack software with hardware extension) which has
been internally implemented for using the embedded TCP/IP stack
software. The I56i module comes without modification regarding to
the 50-pin board-to-board connector.
The integration of TCP/IP stack with hardware extension (a TCP/IP-module added) into the equipment converts it to a standalone client that can be connected to the internet through any GSM
850/1800/1900 network. The module can also send and receive data
by GSM and GPRS network using TCP/IP stack. It supports SMS,
DATA and FAX calls. The I56i module can be easily controlled by
using AT or TCP commands. The “TCP Command Set” manual is
also issued as separate document and is available on the distributed
CD for the I56i’s users.
Please note that, according to your requirement you can choose the desired
device.
0.3 Used abbreviations
Abbreviation Description
AD Analogue/Digital
ADC Analogue-to-Digital Converter
AFC Automatic Frequency Control
AGC Automatic Gain Control
AMP Advanced Power Management
ANSI American National Standards Institute
ARFCN Absolute Radio Frequency Channel Number
ARP Antenna Reference Point
ASC0 Asynchronous Controller. Abbreviations used for serial interface of
I56/I56i
ASIC Application Specific Integrated Circuit
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I65/I56I HARDWARE DESCRIPTION VERSION 1.00
AbbreviationDescription
B2B Board-to-board connector
BER Bit Error Rate
BTS Base Transceiver Station
CB or CBM Cell Broadcast Message
CE Conformité Européene (European Conformity)
CHAP Challenge Handshake Authentication Protocol
CPU Central Processing Unit
CS Coding Scheme
CSD Circuit Switched Data
CTS Clear to Send
DAC Digital-to-Analogue Converter
dBW Decibel per Watt
dBm0 Digital level, 3.14 dBm0 corresponds to full scale, see ITU G.711,
A-law
DCE Data Communication Equipment
DRX Discontinuous Reception
DSP Digital Signal Processor
DSR Data Set Ready
DTE Data Terminal Equipment (typically computer, terminal, printer or,
for example, GSM application)
DTR Data Terminal Ready
DTX Discontinuous Transmission
EFR Enhanced Full Rate
EGSM Enhanced GSM
EMC Electromagnetic Compatibility
ESD Electrostatic Discharge
ETS European Telecommunication Standard
FCC Federal Communications Commission (U.S.)
FDMA Frequency Division Multiple Access
FR Full Rate
GMSK Gaussian Minimum Shift Keying
GPRS General Packet Radio Service
GSM Global Standard for Mobile Communications
HiZ High Impedance
HR Half Rate
I/O Input/Output
IC Integrated Circuit
IF Intermediate Frequency
IMEI International Mobile Equipment Identity
ISO International Standards Organization
ITU International Telecommunications Union
kbps kbits per second
LED Light Emitting Diode
LNA Low Noise Amplifier
Mbps Mbits per second
MMI Man Machine Interface
MO Mobile Originated
MS Mobile Station (GSM engine), also referred to as TE
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I65/I56I HARDWARE DESCRIPTION VERSION 1.00
AbbreviationDescription
MSISDN Mobile Station International ISDN number
MSK Minimum Shift Key
MT Mobile Terminated
NC Not Connected
PA Power Amplifier
PAP Password Authentication Protocol
PBCCH Packet Switched Broadcast Control Channel
PCB Printed Circuit Board
PCL Power Control Level
PCM Pulse Code Modulation
PCN Personal Communications Network, also referred to as DCS 1800
PCS Personal Communication System, also referred to as GSM 1900
PDU Protocol Data Unit
PLL Phase Locked Loop
PPP Point-to-point protocol
PSU Power Supply Unit
R&TTE Radio and Telecommunication Terminal Equipment
RAM Random Access Memory
RF Radio Frequency
RMS Root Mean Square (value)
ROM Read-only Memory
RP Receive Protocol
RTC Real Time Clock
Rx Receive Direction
SAR Specific Absorption Rate
SELV Safety Extra Low Voltage
SIM Subscriber Identification Module
SMS Short Message Service
SRAM Static Random Access Memory
TA Terminal adapter (e.g. GSM engine)
TDMA Time Division Multiple Access
TE Terminal Equipment, also referred to as DTE
Tx Transmit Direction
UART Universal asynchronous receiver-transmitter
URC Unsolicited Result Code
USSD Unstructured Supplementary Service Data
VSWR Voltage Standing Wave Ratio
WAAS Wide Area Augmentation System
FD SIM fix dialing phonebook
LD SIM last dialing phonebook (list of numbers most recently dialed)
MC Mobile Equipment list of unanswered MT calls (missed calls)
ME Mobile Equipment phonebook
ON Own numbers (MSISDNs) stored on SIM or ME
RC Mobile Equipment list of received calls
SM SIM phonebook
Table 1: Used abbreviations
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I65/I56I HARDWARE DESCRIPTION VERSION 1.00
0.4 Related documents
1. ETSI GSM 07.05: “Use of Data Terminal Equipment-Data Circuit
terminating Equipment interface for Short Message Service and Cell
Broadcast Service”
2. ETSI GSM 07.07 “AT command set for GSM Mobile Equipment”
3. ITU-T V.25ter “Serial asynchronous automatic dialling and control”
4. I56/I56i AT Command Set
5. gprs_startup_user_guide_rev_1.00_preliminary
6. I56i TCP Command Set
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I65/I56I HARDWARE DESCRIPTION VERSION 1.00
1 Security
IMPORTANT FOR THE EFFICIENT AND SAFE OPERATION OF
YOUR GSM MODEM, READ THIS INFORMATION BEFORE USE!
Your cellular engine I56/I56i is one of the most exciting and innovative
electronic products ever developed. With it you can stay in contact with
your office, your home, emergency services and others, wherever service is
provided.
This chapter contains important information for the safe and reliable use of
the I56/I56i. Please read this chapter carefully before starting to use the
cellular engine I56/I56i.
1.1 General information
Your I56/I56i modem utilises the GSM standard for cellular technology.
GSM is a newer radio frequency („RF“) technology than the current FM
technology that has been used for radio communications for decades. The
GSM standard has been established for use in the European community and
elsewhere.
Your modem is actually a low power radio transmitter and receiver. It sends
out and receives radio frequency energy. When you use your modem, the
cellular system handling your calls controls both the radio frequency and the
power level of your cellular modem.
1.2 Exposure to RF energy
There has been some public concern about possible health effects of using
GSM modem. Although research on health effects from RF energy has
focused for many years on the current RF technology, scientists have begun
research regarding newer radio technologies, such as GSM. After existing
research had been reviewed, and after compliance to all applicable safety
standards had been tested, it has been concluded that the product is fit for
use.
If you are concerned about exposure to RF energy there are things you can
do to minimise exposure. Obviously, limiting the duration of your calls will
reduce your exposure to RF energy. In addition, you can reduce RF
exposure by operating your cellular modem efficiently by following the
guidelines below.
1.3 Efficient modem operation
In order to operate your modem at the lowest power level, consistent with
satisfactory call quality please take note of the following hints.
If your modem has an extendible antenna, extend it fully. Some models
allow you to place a call with the antenna retracted. However, your
modem operates more efficiently with the antenna fully extended.
Do not hold the antenna when the modem is „IN USE“. Holding the
antenna affects call quality and may cause the modem to operate at a
higher power level than needed.
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I65/I56I HARDWARE DESCRIPTION VERSION 1.00
1.4 Antenna care and replacement
Do not use the modem with a damaged antenna. If a damaged antenna
comes into contact with the skin, a minor burn may result. Replace a
damaged antenna immediately. Consult your manual to see if you may
change the antenna yourself. If so, use only a manufacturer-approved
antenna. Otherwise, have your antenna repaired by a qualified technician.
Use only the supplied or approved antenna. Unauthorised antennas,
modifications or attachments could damage the modem and may contravene
local RF emission regulations or invalidate type approval.
1.5 Driving
Check the laws and regulations on the use of cellular devices in the area
where you drive. Always obey them. Also, when using your modem while
driving, please pay full attention to driving, pull off the road and park before
making or answering a call if driving conditions so require. When
applications are prepared for mobile use they should fulfil road-safety
instructions of the current law!
1.6 Electronic devices
Most electronic equipment, for example in hospitals and motor vehicles is
shielded from RF energy. However, RF energy may affect some
malfunctioning or improperly shielded electronic equipment.
1.7 Vehicle electronic equipment
Check your vehicle manufacturer’s representative to determine if any on
board electronic equipment is adequately shielded from RF energy.
1.8 Medical electronic equipment
Consult the manufacturer of any personal medical devices (such as
pacemakers, hearing aids, etc.) to determine if they are adequately shielded
from external RF energy.
Turn your I56/I56i modem OFF in health care facilities when any
regulations posted in the area instruct you to do so. Hospitals or health care
facilities may be using RF monitoring equipment.
1.9 Aircraft
Turn your I56/I56i OFF before boarding any aircraft.
Use it on the ground only with crew permission.
Do not use it in the air.
To prevent possible interference with aircraft systems, Federal Aviation
Administration (FAA) regulations require you to have permission from a
crew member to use your modem while the plane is on the ground. To
prevent interference with cellular systems, local RF regulations prohibit
using your modem whilst airborne.
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I65/I56I HARDWARE DESCRIPTION VERSION 1.00
1.10 Children
Do not allow children to play with your I56/I56i modem. It is not a toy.
Children could hurt themselves or others (by poking themselves or others in
the eye with the antenna, for example). Children could damage the modem
or make calls that increase your modem bills.
1.11 Blasting areas
To avoid interfering with blasting operations, turn your unit OFF when in a
“blasting area” or in areas posted: „turn off two-way radio“. Construction
crew often use remote control RF devices to set off explosives.
1.12 Potentially explosive atmospheres
Turn your I56/I56i modem OFF when in any area with a potentially
explosive atmosphere. It is rare, but your modem or its accessories could
generate sparks. Sparks in such areas could cause an explosion or fire
resulting in bodily injury or even death.
Areas with a potentially explosive atmosphere are often, but not always,
clearly marked. They include fuelling areas such as petrol stations; below
decks on boats; fuel or chemical transfer or storage facilities; and areas
where the air contains chemicals or particles, such as grain, dust or metal
powders.
Do not transport or store flammable gas, liquid or explosives, in the
compartment of your vehicle which contains your modem or accessories.
Before using your modem in a vehicle powered by liquefied petroleum gas
(such as propane or butane) ensure that the vehicle complies with the
relevant fire and safety regulations of the country in which the vehicle is to
be used.
1.13 Non-ionising radiation
As with other mobile radio transmitting equipment users are advised that for
satisfactory operation and for the safety of personnel, it is recommended that
no part of the human body be allowed to come too close to the antenna
during operation of the equipment.
The radio equipment shall be connected to the antenna via a non-radiating
50 Ohm coaxial cable.
The antenna shall be mounted in such a position that no part of the human
body will normally rest close to any part of the antenna. It is also
recommended to use the equipment not close to medical devices as for
example hearing aids and pacemakers.
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I65/I56I HARDWARE DESCRIPTION VERSION 1.00
2 Safety standards
This GSM modem complies with all applicable RF safety standards.
The embedded GMS modem meets the safety standards for RF receivers
and the standards and recommendations for the protection of public
exposure to RF electromagnetic energy established by government bodies
and professional organisations, such as directives of the European
Community, Directorate General V in matters of radio frequency
electromagnetic energy.
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I65/I56I HARDWARE DESCRIPTION VERSION 1.00
3 Technical data
3.1 Technical specifications of GSM/GPRS engine
Power supply:
Supply voltage +5 V DC ±10 % (see chapter 3.2
for further details)
Power saving (GSM):
Minimizes power consumption in SLEEP mode
to 13 mA
Charging:
S
upports charging control for Li-Ion battery for
the GSM/GPRS engine of the module
Temperature range:
Normal operation: -20 °C to +55 °C (see chapter
Evaluation kit:
The I56/I56i Evaluation Kit is designed to test
Physical characteristics:
S
W
I56i firmware upgrade:
I56i
Frequency bands:
T
C
3.3 for further details)
consider it as a Reference-Design for your HWapplication, thus, you can save time and money.
In this way you can reduce the Time-To-Market
(see chapter 11).
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I65/I56I HARDWARE DESCRIPTION VERSION 1.00
GPRS connectivity:
PRS multi-slot class 10
G
G
PRS mobile station class B
DATA:
GPRS ⇒
CSD ⇒
WAP ⇒
PRS data downlink transfer: max. 85.6 kbps
G
(see table 3).
G
PRS data uplink transfer: max. 42.8 kbps (see
table 3).
C
oding scheme: CS-1, CS-2, CS-3 and CS-4.
I56/I56i
supports the two protocols PAP
(Password Authentication Protocol) and CHAP
(Challenge Handshake Authentication Protocol)
commonly used for PPP connections.
S
upport of Packet Switched Broadcast Control
Channel (PBCCH) allows you to benefit from
enhanced GPRS performance when offered by
the network operators.
MT, MO, CB, Text and PDU mode
SMS storage: SIM card plus 25 SMS locations in
the mobile equipment
T
ransmission of SMS alternatively over CSD or
GPRS. Preferred mode can be user-defined.
MS compliant
M
G
roup 3: class 1, class 2
Supported SIM card: 3 V
I
ntegrated SIM card slot (for small SIM card,
only)
E
xternal SIM interface, which can be connected
via provided pins on the 40-pin board-to-board
connector (note that extra card reader is not part
of I56/I56i)
Casing:
F
ully shield
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I65/I56I HARDWARE DESCRIPTION VERSION 1.00
Temperature control
and auto switch-off:
Constant temperature control prevents damage to
I56/I56i when the specified temperature is
exceeded. When an emergency call is in progress
the automatic temperature shutdown
functionality is deactivated. (see chapter 3.3 for
further details)
External antenna:
C
onnected via 50 Ohm antenna connector.
Audio interfaces:
An analogue audio interface
Audio features:
Speech code modes:
H
alf Rate (ETS 06.20)
F
ull Rate (ETS 06.10)
E
nhanced Full Rate (ETS 06.50/06.60/06.80)
A
daptive Multi Rate (AMR)
Handsfree operation
E
cho cancellation
N
oise reduction
One serial interface (ASC0):
2.65V level, bi-directional bus for AT
commands and data
A
Supports RTS0/CTS0 hardware handshake and
software XON/XOFF flow control. Multiplex
ability according to GSM 07.10 Multiplexer
Protocol.
B
A
19200, 38400, 57600, 115200, 230400 bps
Phonebook management:
Supported phonebook types: SM, FD, LD, MC,
RC, ON, ME
SIM Application Toolkit:
Supports SAT class 3, GSM 11.14 Release 98
Ringing tones:
Offers a choice of 7 different ringing
tones/melodies, easily selectable with AT
command
SC0full-featured 8-wire serial interface.
aud rate: 300 bps ... 230 kbps on ASC0
utobauding detects 1200, 2400, 4800, 9600,
Real time clock:
I
mplemented
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I65/I56I HARDWARE DESCRIPTION VERSION 1.00
Timer function:
rogrammable via AT command
P
Support of TTY/CTM:
To benefit from TTY communication via GSM,
CTM equipment can be connected to one of the
three audio interfaces.
Internal memory for I56i, only:
C
ombo-Memory (2 MB Flash–512 KB SRAM)
Software for I56i, only:
TCP/IP stack (Internet protocols stack which
handles the Internet's link, network, transport
and application layers). The embedded software
interface that runs on I56i module for
establishing an internet connectivity using IP
commands. TCP/IP software description is also
available.
Table 2: Coding schemes and maximum net data rates over air interface
Please note that the values listed above are the maximum ratings which, in practice, are
influenced by a great variety of factors, primarily, for example, traffic variations and
network coverage.
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