Siemens TC35i User Manual
Siemens Cellular Engine
Hardware
Interface
Version:
DocID:
01.05
TC35i T HD v01.05
Description
TC35i Terminal Hardware Interface Description
Confidential / Released
Document Name:
TC35i Terminal Hardware Interface Description
Version: 01.05
Date: 10.07.2003
DocId: TC35i_T_HD_v01.05
Status:
Confidential / Released
General notes
Product is deemed accepted by Recipient and is provided without interface to Recipient´s products.
The Product constitutes pre-release version and code and may be changed substantially before
commercial release. The Product is provided on an “as is” basis only and may contain deficiencies or
inadequacies. The Product is provided without warranty of any kind, express or implied. To the
maximum extent permitted by applicable law, Siemens further disclaims all warranties, including
without limitation any implied warranties of merchantability, fitness for a particular purpose and
noninfringement of third-party rights. The entire risk arising out of the use or performance of the
Product and documentation remains with Recipient. This Product is not intended for use in life support
appliances, devices or systems where a malfunction of the product can reasonably be expected to
result in personal injury. Applications incorporating the described product must be designed to be in
accordance with the technical specifications provided in these guidelines. Failure to comply with any of
the required procedures can result in malfunctions or serious discrepancies in results. Furthermore, all
safety instructions regarding the use of mobile technical systems, including GSM products, which also
apply to cellular phones must be followed. Siemens AG customers using or selling this product for use
in any applications do so at their own risk and agree to fully indemnify Siemens for any damages
resulting from illegal use or resale .To the maximum extent permitted by applicable law, in no event
shall Siemens or its suppliers be liable for any consequential, incidental, direct, indirect, punitive or
other damages whatsoever (including, without limitation, damages for loss of business profits,
business interruption, loss of business information or data, or other pecuniary loss) arising out the use
of or inability to use the Product, even if Siemens has been advised of the possibility of such damages.
Subject to change without notice at any time.
Copyright notice
Transmittal, reproduction, dissemination and/or editing of this document as well as utilization of its
contents and communication thereof to others without express authorization are prohibited. Offenders
will be held liable for payment of damages. All rights created by patent grant or registration of a utility
model or design patent are reserved.
Copyright © Siemens AG 2003
Trademark notice
MS Windows
â
is a registered trademark of Microsoft Corporation.
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Contents
0 Document history....................................................................................................... 5
1 Introduction ................................................................................................................ 6
1.1 References ......................................................................................................... 6
1.2 Standards ........................................................................................................... 7
1.3 Safety precautions .............................................................................................. 8
1.4 Terms and abbreviations....................................................................................10
2 Key features of TC35i Terminal................................................................................12
3 Interface description.................................................................................................13
3.1 Overview............................................................................................................13
3.2 Block diagram of a GSM application ..................................................................14
3.3 The TC35i GSM engine .....................................................................................15
3.4 Operating modes ...............................................................................................16
3.5 Terminal circuit...................................................................................................17
3.5.1 Power supply and On/Off control ............................................................18
3.5.1.1 Maximum number of turn/on & turn/off cycles ......................................19
3.5.2 RTC........................................................................................................20
3.6 Upgrading TC35i Terminal firmware ..................................................................20
3.6.1 RS-232 interface.....................................................................................20
3.6.2 Audio interface........................................................................................22
3.6.3 Radio interface .......................................................................................25
3.6.4 SIM interface ..........................................................................................26
3.6.5 Status LED .............................................................................................26
4 Mechanical characteristics and mounting advice ..................................................27
4.1 Attaching the terminal ........................................................................................28
5 Electrical and environmental characteristics..........................................................29
6 Full type approval......................................................................................................35
6.1 Restrictions ........................................................................................................36
6.2 CE Conformity....................................................................................................36
6.3 EMC...................................................................................................................36
7 List of parts and recommended accessories..........................................................37
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Figures
Figure 1: Block diagram of a TC35i Terminal application (example).....................................14
Figure 2: TC35i GSM engine................................................................................................15
Figure 3: TC35i Terminal circuit block diagram ....................................................................17
Figure 4: Female 6-pole Western plug for power supply, ignition, power down ....................18
Figure 5: Pin assignment RS-232 (D-Sub 9-pole female).....................................................20
Figure 6: Audio Western plug (4-pole female)......................................................................22
Figure 7: Audio block diagram..............................................................................................22
Figure 8: Antenna connector circuit on TC35i module..........................................................25
Figure 9: Recommended antenna connector........................................................................25
Figure 10: Design drawing ...................................................................................................27
Figure 11: Recommended screws........................................................................................28
Figure 12: Attaching TC35i Terminal onto a top-hat rail .......................................................28
Figure 13: Reference equipment for approval ......................................................................35
Tables
Table 1: Terms and abbreviations ........................................................................................10
Table 2: Key features ...........................................................................................................12
Table 3: Overview of operating modes.................................................................................16
Table 4: Female 6-pole Western plug for power supply, ignition, power down .....................19
Table 5: 9-pole D-Sub (female) RS-232 ...............................................................................21
Table 6: Audio modes ..........................................................................................................23
Table 7: Coding of the green status LED .............................................................................26
Table 8: Mechanical characteristics......................................................................................27
Table 9: Absolute maximum ratings .....................................................................................29
Table 10: Operating conditions.............................................................................................29
Table 11: Characteristics power supply................................................................................30
Table 12: Characteristics (requirements) On/Off control lines ..............................................31
Table 13: Characteristics (requirements) RS-232 interface..................................................31
Table 14: Characteristics (requirements) audio interface .....................................................32
Table 15: AT adjustable parameters ....................................................................................33
Table 16: Air interface ..........................................................................................................34
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0 Document history
Preceding document: "TC35i Terminal Hardware Interface Description" Version 00.40
New document: "TC35i Terminal Hardware Interface Description" Version 01.05
Chapter Page What is new
0 6 Added Application Note 24: Application Developers’ Guide
1.2, 7 6, 37 TC35i Terminal now fully type approved and labeled with CE mark
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1 Introduction
This document describes the hardware of the Siemens TC35i Terminal. The information are
intended for users, developers or manufacturers who design and build cellular applications
beyond the standard setup. The scope of this document includes interface specifications,
electrical issues and mechanical characteristics of TC35i Terminal. It specifies standards
pertaining to wireless applications and outlines requirements that must be adhered to for
successful product design. The TC35i Terminal is a compact GSM modem for the transfer of
data, voice, SMS and faxes in GSM networks. Industrial standard interfaces and an
integrated SIM card reader allow using TC35i Terminal easily as a dual band GSM terminal.
The functionality of the Terminal corresponds to the features of the TC35i module.
1.1 References
[1] TC35i AT Command Set for TC35i and TC35i Terminal, Version 01.05
[2] Release Note, Version 01.05
[3] Application Note 16: Upgrading TC35i Terminal firmware
[4] Application Note 02: Audio Interface Design
[5] Application Note 24: Application Developers’ Guide
[6] Remote Sat User’s Guide
[7] Multiplexer User’s Guide
[8] Multiplexer Driver Developer’s Guide for Windows 2000 and Windows XP
[9] Multiplexer Driver Installation Guide for Windows 2000 and Windows XP
Prior to using the GSM engine, be sure to carefully read and understand the latest product
information provided in the Release Notes.
To visit the Siemens Website you can use the following link:
http://www.siemens.com/wm
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1.2 Standards
TC35i Terminal has been approved to comply with the directives and standards listed below
and is labeled with the CE conformity mark.
Directives
99/05/EC Directive of the European Parliament and of the council of 9 March
1999 on radio equipment and telecommunications terminal
equipment and the mutual recognition of their conformity, in short
referred to as R&TTE Directive 1999/5/EC
89/336/EC Directive on electromagnetic compatibility
73/23/EC Directive on electrical equipment designed for use within certain
voltage limits (Low Voltage Directive)
95/54/EC Automotive EMC Directive
Standards of type approval
ETS 300 607-1 Digital cellular telecommunications system (Phase 2);
Mobile Station (MS) conformance specification;
(equal GSM 11.10-1=>equal 3GPP TS 51.010-1)
EN 301 511 V7.0.1 (2000-12) Candidate Harmonized European Standard
(Telecommunications series) Global System for Mobile
communications (GSM); Harmonized standard for mobile stations in
the GSM 900 and DCS 1800 bands covering essential requirements
under article 3.2 of the R&TTE directive (1999/5/EC) (GSM 13.11
version 7.0.1 Release 1998)
EN 301 489-7 V1.1.1 (2000-09) Candidate Harmonized European Standard
(Telecommunications series) Electro Magnetic Compatibility and
Radio spectrum Matters (ERM); Electro Magnetic Compatibility
(EMC) standard for radio equipment and services; Part 7: Specific
conditions for mobile and portable radio and ancillary equipment of
digital cellular radio telecommunications systems (GSM and DCS)
EN 60 950 Safety of information technology equipment (2000)
Requirements of quality
IEC 60068 Environmental testing
DIN EN 60529 IP codes
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1.3 Safety precautions
The following safety precautions must be observed during all phases of the operation,
usage, service or repair of any cellular terminal or mobile incorporating TC35i Terminal.
Manufacturers of the cellular terminal are advised to convey the following safety information
to users and operating personnel and to incorporate these guidelines into all manuals
supplied with the product. Failure to comply with these precautions violates safety standards
of design, manufacture and intended use of the product. Siemens AG assumes no liability
for customer failure to comply with these precautions.
When in a hospital or other health care facility, observe the restrictions on the
use of mobiles. Switch the cellular terminal or mobile off, if instructed to do so
by the guidelines posted in sensitive areas. Medical equipment may be
sensitive to RF energy.
The operation of cardiac pacemakers, other implanted medical equipment
and hearing aids can be affected by interference from cellular terminals or
mobiles placed close to the device. If in doubt about potential danger, contact
the physician or the manufacturer of the device to verify that the equipment is
properly shielded. Pacemaker patients are advised to keep their hand-held
mobile away from the pacemaker, while it is on.
Switch off the cellular terminal or mobile before boarding an aircraft. Make
sure it cannot be switched on inadvertently. The operation of wireless
appliances in an aircraft is forbidden to prevent interference with
communications systems. Failure to observe these instructions may lead to
the suspension or denial of cellular services to the offender, legal action, or
both.
Do not operate the cellular terminal or mobile in the presence of flammable
gases or fumes. Switch off the cellular terminal when you are near petrol
stations, fuel depots, chemical plants or where blasting operations are in
progress. Operation of any electrical equipment in potentially explosive
atmospheres can constitute a safety hazard.
Your cellular terminal or mobile receives and transmits radio frequency
energy while switched on. Remember that interference can occur if it is used
close to TV sets, radios, computers or inadequately shielded equipment.
Follow any special regulations and always switch off the cellular terminal or
mobile wherever forbidden, or when you suspect that it may cause
interference or danger.
Road safety comes first! Do not use a hand-held cellular terminal or mobile
when driving a vehicle, unless it is securely mounted in a holder for handsfree
operation. Before making a call with a hand-held terminal or mobile, park the
vehicle.
Handsfree devices must be installed by qualified personnel. Faulty installation
or operation can constitute a safety hazard.
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IMPORTANT!
SOS
Cellular terminals or mobiles operate using radio signals and cellular
networks cannot be guaranteed to connect in all conditions. Therefore, you
should never rely solely upon any wireless device for essential
communications, for example emergency calls.
Remember, in order to make or receive calls, the cellular terminal or mobile
must be switched on and in a service area with adequate cellular signal
strength.
Some networks do not allow for emergency calls if certain network services
or phone features are in use (e.g. lock functions, fixed dialling etc.). You may
need to deactivate those features before you can make an emergency call.
Some networks require that a valid SIM card be properly inserted in the
cellular terminal or mobile.
If a power supply unit is used to supply the device, it must meet the demands
placed on SELV circuits in accordance with EN60950. The maximum
permissible connection length between the device and the supply source
should not exceed 3m.
According to the guidelines for human exposure to radio frequency energy,
an antenna connected to the FME jack of the device should be placed at
least 20cm away from human bodies.
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1.4 Terms and abbreviations
Table 1: Terms and abbreviations
Abbreviation Description
ADC Analog-to-Digital Converter
ARP Antenna Reference Point
ASIC Application Specific Integrated Circuit
ATC AT Cellular
BTS Base Transceiver Station
CB Cell Broadcast
CODEC Coder-Decoder
CPU Central Processing Unit
DCE Data Circuit terminating Equipment
DSB Development Support Box
DSP Digital Signal Processor
DSR Data Set Ready
DTR Data Terminal Ready
EFR Enhanced Full Rate
EGSM Enhanced GSM
EMC Electromagnetic Compatibility
ESD Electrostatic Discharge
ETS European Telecommunication Standard
FDMA Frequency Division Multiple Access
FR Full rate
G.C.F. GSM Conformity Forum
GSM Global Standard for Mobile Communication
HF Hands-free
HR Half rate
HW Hardware
IC Integrated Circuit
IF Intermediate Frequency
IMEI International Mobile Equipment Identifier
I/O Input/ Output
IGT Ignition
ISO International Standards Organization
ITU International Telecommunications Union
kbps kbits per second
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Abbreviation Description
Li-Ion Lithium-Ion
LVD Low voltage Directive
Mbps Mbits per second
MMI Machine Machine Interface
MO Mobile Originated
MS Mobile Station
MT Mobile Terminated
NC Not Connected
NTC Negative Temperature Coefficient
PA Power Amplifier
PCB Printed Circuit Board
PCM Pulse Code Modulation
PCS Personal Communication System
PD Power Down
PDU Protocol Data Unit
R&TTE Radio and Telecommunication Terminal Equipment
RAM Random Access Memory
RF Radio frequency
RI Ring Indication
ROM Read Only Memory
RX Receive direction
SIM Subscriber Identification Module
SMS Short Message Service
SRAM Static Random Access Memory
SW Software
TBD To Be Defined
TDD Time Division Duplex
TDMA Time Division Multiple Access
TX Transmit direction
UART Universal Asynchronous Receiver and Transmitter
VAD Voice Activity Detection
ZIF Zero Insertion Force
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2 Key features of TC35i Terminal
Table 2: Key features
Feature Implementation
Transmission Voice, Data, SMS, Fax
Power supply Single supply voltage 8V to 30V
GSM class Small MS
Frequency bands
Transmit power
SIM card reader Internal
External antenna Connected via antenna FME connector
Speech codec Triple rate codec:
SMS MT, MO, CB, Text and PDU mode
DATA 2.4, 4.8, 9.6, 14.4 kbps, non-transparent, V.110
FAX Group 3: Class 1, Class 2
Audio interface Analog (Microphone, Earpiece)
Serial interface
· Dual Band E-GSM 900 and GSM 1800
· Compliant to GSM Phase 2/2+
· Class 4 (2W) for EGSM900
· Class 1 (1W) for GSM1800
· Half Rate (ETS 06.20)
· Full Rate (ETS 06.10)
· Enhanced Full Rate (ETS 06.50 / 06.60 / 06.80)
Unstructured Supplementary Services Data (USSD) support
· 2.65V level, bi-directional bus for AT commands and data
· Multiplex ability according to GSM 07.10 Multiplexer protocol
· Baud rates from 300bps to 115.200bps
· Autobauding supports: 1.200, 2.400, 4.800, 9.600, 19.200,
38.400, 57.600 and 115.200bps
Supported SIM card 3V
Phonebook management Supported phonebook types: SM, FD, LD, MC, RC, ON, ME
Reset of TC35i Terminal Reset via AT command or Power Down Signal
Firmware upgrade Upgradable via serial interface or SIM interface.
Real time clock Implemented (clock frequency 32.768kHz)
Environmental
Size 65x74x33 mm (approx.)
Weight 130g
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Temperature:
· Normal operation: -20°C to +55°C to +65°C
· Humidity: max. 80 % relative humidity
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