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TC35i
Siemens Cellular Engine
Migration from TC35 to
TC35i
Version: V 01.01
DocID: TC35_TC35i_MIG_01_V01.01
Status:
Preliminary
TC35i: Migration from TC35 to TC35i
P R E L I M I N A R Y
Document Name:
Migration from TC35 to TC35i
Version:
Date:
DocId:
Status:
V01.01
January, 29, 2003
TC35_TC35i_MIG_01_V01.01
Preliminary
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 non-infringement 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
Copying of this document and giving it to others and the use or communication of the contents thereof, are forbidden without express authority. Offenders are liable to the payment of damages. All rights reserved in the event of grant of a patent or the registration of a utility model or design.
Copyright © Siemens AG 2003
Trademark notice
MS Windows
is a registered trademark of Microsoft Corporation.
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TC35i: Migration from TC35 to TC35i
P R E L I M I N A R Y
Contents
1 Revision history .............................................................................................................. 5
2
3
4
5
General info .................................................................................................................... 6
2.1
How to use this document ....................................................................................... 6
Feature migration ........................................................................................................... 7
3.1
General description ................................................................................................. 7
3.2
Certification and standards ..................................................................................... 8
Hardware migration ........................................................................................................ 9
4.1
Introduction .............................................................................................................. 9
4.2
Operating Modes ................................................................................................... 10
4.3
Interface/connectors comparison TC35i/TC35 ..................................................... 11
4.4
Power Supply ........................................................................................................ 12
4.4.1
General ...................................................................................................... 12
4.4.2
Power up / down scenarios ....................................................................... 13
4.4.3
Automatic shutdown .................................................................................. 13
4.4.3.1
Temperature dependent shutdown ......................................................... 13
4.4.4
Battery pack ............................................................................................... 14
4.5
RTC backup .......................................................................................................... 15
4.6
Control signals ....................................................................................................... 15
4.7
Interfaces ............................................................................................................... 16
4.7.1
Serial Interface ........................................................................................... 16
4.7.2
SIM card interface ...................................................................................... 16
4.7.3
Antenna Interface ....................................................................................... 17
4.7.3.1
General .................................................................................................... 17
4.7.4
Audio Interface ........................................................................................... 17
4.8
Electrostatic discharge .......................................................................................... 18
4.9
Mechanical Dimensions ........................................................................................ 18
4.10 Mounting and installation ....................................................................................... 19
4.11 Terms and Abbreviations ...................................................................................... 20
AT-Commands migration ............................................................................................. 22
5.1
General comments ................................................................................................ 22
5.2
List of jointly supported AT-commands ................................................................. 23
5.2.1
Standard V.25ter AT Commands .............................................................. 23
5.2.2
AT Commands for FAX ............................................................................. 24
5.2.3
AT Commands originating from GSM 07.07
............................................. 25
5.2.4
AT commands originating from GSM 07.05 for SMS ................................ 27
5.2.5
Siemens defined AT commands for enhanced functions ......................... 31
5.3
List of new AT-Commands ................................................................................... 32
5.3.1
AT Commands for SIM Application Toolkit (GSM 11.14) .......................... 32
5.3.2
AT Commands originating from GSM 07.07
............................................. 32
5.3.3
Commands from change requests TC/AC/MC35 .................................... 33
5.3.4
New features for TC35i only – misc.
......................................................... 33
5.3.5
Siemens defined AT commands for enhanced functions ......................... 33
5.4
List of unsupported AT-Commands ...................................................................... 33
5.5
List of AT-Commands for V.25ter compatibility .................................................... 33
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TC35i: Migration from TC35 to TC35i
P R E L I M I N A R Y
Figures
Figure 1: RTC supply from capacitor for TC35i ................................................................................. 15
Figure 2: RTC supply from capacitor for TC35.................................................................................. 15
Figure 3: TC35 footprint ................................................................................................................. 18
Figure 4: TC35i footprint ................................................................................................................ 18
Tables
Table 3-1: General description a)...................................................................................................... 7
Table 3-2: General description b)...................................................................................................... 8
Table 4-1: Operating modes ........................................................................................................... 10
Table 4-2: Host interface PIN assignment - ZIF connector................................................................. 11
Table 4-3: Power supply signals..................................................................................................... 12
Table 4-4: Power consumption comparison ..................................................................................... 12
Table 4-5: Maximum ratings and the associated URCs..................................................................... 13
Table 4-6: Wake up from SLEEP mode scenarios............................................................................ 14
Table 4-7: Battery specifications - general....................................................................................... 14
Table 4-8: Battery specifications - charging ..................................................................................... 14
Table 4-9: RS232 – Serial interface................................................................................................. 16
Table 4-10: RF interface ................................................................................................................ 17
Table 4-13: Glossary of terms ........................................................................................................ 20
Table 5-1: Standard V.25ter AT commands ..................................................................................... 23
Table 5-2: AT commands for FAX................................................................................................... 24
Table 5-3: AT commands from GSM 07.07...................................................................................... 25
Table 5-4: AT commands for SMS.................................................................................................. 27
Table 5-5: Siemens defined AT commands...................................................................................... 31
Table 5-6: AT commands for SAT................................................................................................... 32
Table 5-7: AT commands from GSM 07.07- new .............................................................................. 32
Table 5-8: AT commands from change requests .............................................................................. 33
Table 5-9: New TC35i features........................................................................................................ 33
Table 5-10: New Siemens defined AT commands............................................................................. 33
Table 5-11: V.254ter compatibility commands ................................................................................. 33
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P R E L I M I N A R Y
1 Revision history
Date
021022
021025
021028
021028
021029
021029
021030
021030
021104
021104
021023
021023
021023
021023
021024
021024
021025
021108
021108
021111
021111
LR
NK
LR
AM
021112 AM/NK/LR
021112 NK/LR
021112
021112
NK
LR
021114
021121
021216
LR
LR
NK
021217
021219
090103
NK
LR
NK
NK
LR
NK
LR
NK
LR
Author Version
LR
LR
NK
NK
LR
LR
NK
LR
NK
AM/LR
00.01
Change
Initial version based on M20T to TC35T migration paper and "Daphne" HW specification 00/011.
00.02
Chapter # 5: AT commands - analysis and breakdown per module
00.02
Initial version revision, AT Commands analysis
00.03
Chapters # 3.1 – 4: HW
00.03
Chapters # 3.1 – 4: HW – revision, Chapter # 2.1: How to use this document - revision
00.03
Chapter # 5: AT-Commands migration – revision, Chapters # 2.1, 5.1,
5.2.1
00.03
Chapters # 4: HW
00.03
Chapter # 5.6: AT-Commands reference documents – new, Chapters #
5.2.2, 5.2.3
00.03
Chapters # 4: HW
00.03
Chapter # 5.2.4: AT commands originating from GSM 07.05 for SMS
00.03
Chapters # 4: HW
00.03
Chapter # 5.2.5: Siemens defined AT commands for enhanced functions
00.03
Chapters # 3.1 – 4: HW
00.03
Chapters # 5.3, 5.4, 5.5, 5.6
00.03
Chapter # 3: Feature migration
00.04
Chapter # 4: Hardware migration [all sub chapters] - revision
00.04
Chapters [all]: Integration of HW & SW part, additional formatting and corrections
00.05
Chapters [all]: Additional formatting and corrections
00.05
Chapter #4: HW - revision, additional content
00.05
Chapters [all]: Final formatting and corrections
00.05
Chapters [all]: revision
00.05
Chapters [all]: revision via telephone conference
00.06
Chapters [all]: corrections
00.06
Chapters #: 4.6.3, 4.6.3.1, 4.7, 4.10
00.06
Revision and corrections - latest info from TC35i_HD_01_V00.01 included
00.07
Additional formatting and corrections
00.08
Corrections, new "general notes" chapter
00.09
Reducing the document to get a shorter version; additional formatting and corrections trough the hole document
00.09
Reducing the document to get a shorter version; additional formatting and corrections trough the hole document
00.10
Revision, phone conference
01.00
Released
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P R E L I M I N A R Y
2 General info
2.1 How to use this document
The target audiences for this document are all categories of software and hardware developers, system integrators and expert end-users of SIEMENS GSM wireless modules.
The content applies in particular to current users and developers whose applications are utilizing SIEMENS TC35/TC37/TC35T for their communications purposes.
The aim of this document is to provide information and offer support in order to facilitate the transition towards the new generation of SIEMENS wireless modules, namely, TC35i.
Information provided here is based on official technical manuals and released specifications for TC35 and TC35i. The naming conventions used in this document follow those of source documentation.
The authors presume the readers are already familiar with the contents of those manuals.
The document presents migration issues in detail using comparison tables between the modules and covers topics ranging from hardware specifications to AT-command interface.
Technical specifications and interfaces to GSM telecom services are described and compared in detail as well as all the relevant features. AT-command interface was given particular attention since it represents the main tool available to developers through which applications can be controlled. Available commands for both TC35i and TC35T are listed and classified according to their implementation within each of the modules. Differences in test, query and execution syntax as well as in available parameters are noted for each command.
Commands are classified in three main groups: jointly supported commands, commands new with respect to TC35 and TC35 commands not supported by TC35i.
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P R E L I M I N A R Y
3 Feature migration
Feature comparison for both modules is introduced in the table below. Only main specifications are listed.
3.1 General description
Table 3-1: General description a)
Features
Product Data
Parameter
Frequency bands:
Audio
SMS
SAT
TC35 TC35i
Dual-band EGSM 900, GSM1800 compliant to GSM Phase 2/2+
Output performance:
GSM Class:
Control:
Supported SIM card:
Class 4 (2W) for EGSM900
Class 1 (1W) for GSM1800 small MS via AT commands
3V
External SIM card holder has to be connected via SIM interface connector
SM, FD, LD, MC, RC, ON, ME not supported supported, via AT%D
Phonebook management:
Automatic dial on DTR line activation:
Input voltage range:
Component mounting:
Dimensions:
Weight:
Temperature conditions:
Real time clock:
Timer function:
Antenna design:
Antenna connectors:
Evaluation kit:
Speech codec:
Audio interface:
General bulk SMS MO enhancement:
SMS storages:
SIM Application Toolkit:
3.3V – 5.5V
3.3 – 4.8 V both sides
Automatic shutdown supported single-side mounted
54.5 x 36 x 6.85 mm
18g
54,5 x 36 x 3,6
10g
Normal operation: (-20°C; +55°C)
Restricted operation: (-29°C; -25°C) & (+55°C; +70°C)
Storage: (-40°C; +85°C)
Automatic shutdown supported: (>+75°C and <-29°C)
Pin 30, VDDLP
Implemented
Pin 30, VDDLP
Needs an external serial resistor between VDDLP and capacitor / battery to limit input current.
Includes 1k Ω resistor on VDDLP line between ZIF connector and PSU.
No external resistor required.
If application is battery powered, additional diode(s) are suggested between VDDLP and VBATT+ (see
Chapter "RTC backup" in your
"TC3x Hardware Interface
Description").
If used in earlier TC35 application, removing additional diode(s) between
VDDLP and VBATT+ line is required.
Programmable via AT command
50 Ω antenna interface.
GSC coaxial connector
DSB 35 Support Box
Half Rate (ETS 06.20)
Full Rate (ETS 06.10)
Enhanced Full Rate (ETS 06.50 / 06.60 / 06.80)
2 x analogue audio interfaces (hands-free, supports echo cancellation)
Point-to-point MT and MO SMS
SMS Cell Broadcast
Text and PDU mode SMS MO
+CMMS
SM
-
SM+ME (25 places)
SAT class 3, GSM 11.14 Release 98
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Table 3-2: General description b)
Data
Fax
Features
External interfaces
Serial interface
Software update
Parameter TC35 TC35i
Supported services: 2400 bps (V.22bis)
4800 bps (V.32)
9600 bps (V.32)
14400 bps (V.34)
2400 bps (V.110)
4800 bps (V.110)
9600 bps (V.110)
14400 bps (V.110) supported non-transparent mode
USSD support:
Connection element:
Supported classes:
RF interface:
Application interface:
Baud rate: Fixed range
(300bps...115kbps)
Autobauding
(1.2kbps...115kbps)
Local character framing: 8N1 - fixed
Group 3: Class 1, Class 2
GSC antenna connector only
40-pin ZIF connector
Fixed range (300bps...230kbps)
Autobauding (1.2kbps...230kbps)
7E1, 7O1, 8E1, 8N1, 8O1, 7E2, 7O2,
8E2, 8N2, 8O2; via AT command
Multiplex mode:
Flow control: supported, MUX GSM 07.10
RTS/CTS hardware handshake and software XON/XOFF flow control.
via RS232 or SIM interface
3.2 Certification and standards
Both TC35 and TC35i comply to the same directives and standards. For further information, please consult the HW manual.
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P R E L I M I N A R Y
4 Hardware migration
This chapter contains information regarding the hardware set-up, installation instructions and physical properties for both modules. Hardware features are listed in comparison tables related to power supply, RF, audio, SIM and RS232 serial interfaces with functionality descriptions. All features, except RF, are available through common host application interface.
4.1 Introduction
TC35i was intended as a "feature-superset" successor to TC35. It is super-slim, single-side mounted, compact, dual-band GSM OEM module for integration into industrial or mobile devices.
TC35i incorporates all the TC35 HW features with following additional features:
æ Automatic dial on DTR line activation
æ Autobauding up to 230kbps. Character framing and flow control fully supported
æ Single side mounted
æ SM+ME (25 places)
æ SAT class 3, GSM 11.14
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P R E L I M I N A R Y
4.2 Operating Modes
Various operating modes for TC35 and TC35i modules are listed in the table below. TC35i module supports four additional sleep modes compared to TC35. For further details please consult the TC35i manual
The table below shows operating modes overview for both devices
Table 4-1: Operating modes
Mode Function
GSM SLEEP
Normal operation
POWER DOWN
Alarm mode
Charge-only mode
Charge mode during normal operation
GSM IDLE
GSM TALK
TC35 TC35i
Power saving mode set with AT+CFUN command. Software is active to minimum extent. If the GSM engine was registered to the GSM network in IDLE mode, it is registered and paging in
SLEEP mode, too. AT interface is not responding.
Software is active to a minimum extent. If the module was registered to a GSM network in
IDLE mode, it remains, in SLEEP mode, registered and pageable from the BTS.
Power saving can be chosen at different levels.
The NON_CYCLIC SLEEP mode (AT+CFUN=0) disables the AT interface. The CYCLIC SLEEP
mode AT+CFUN=5, 6, 7 and 8 alternatingly activate and deactivate the AT interface to allow permanent access to all AT commands.
Software is active. Once registered to the GSM network, paging with BTS is carried out.
The module is ready to send and receive.
Connection between two subscribers is in progress. Power consumption depends on network coverage individual settings, such as DTX off/on, FR/EFR/HR, hopping sequences, antenna.
Operating voltage is applied. Only a voltage regulator in the Power Supply ASIC is active for powering the RTC. Software is not active. The RS-232 interface is not accessible.
Restricted operation launched by RTC alert function while the module is in Power Down mode. Module will not be registered to GSM network. Limited number of AT commands is accessible. If application is battery powered: No charging functionality in Alarm mode.
Limited operation for battery powered applications. Enables charging while engine is detached from GSM network. Limited number of AT commands is accessible. There are several ways to launch Charge-only mode:
æ From Power Down mode: Connect charger to POWER lines when engine was powered down by AT^SMSO.
æ From Normal mode: Connect charger to POWER lines, then enter AT^SMSO.
Normal operation (SLEEP, IDLE, TALK, DATA) and charging running in parallel. Charge mode changes to Charge-only mode when the module is powered down before charging has been completed.
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P R E L I M I N A R Y
4.3 Interface/connectors comparison TC35i/TC35
TC35 and TC35i are equipped with a 40-pin 0.5mm pitch ZIF connector that connects to the cellular application platform. The mentioned ZIF connector is completely the same for both devices. The host interface incorporates several sub-interfaces described in the following chapters
TC35 and TC35i are totally PIN compatible. Some off the TC35 signal names were changed with TC35i but the functionality is completely identical.
Table 4-2: Host interface PIN assignment - ZIF connector
Pin No.
38
39
40
34
35
36
37
30
31
32
33
26
27
28
29
22
23
24
25
18
19
20
21
14
15
16
17
1-5
6-10
11-12
13
Function
RS232
RS232
RS232
RS232
RS232
RS232
SIM
SIM
Power supply
Ground
Charger
External supply voltage
Battery Temperature
Ignition
RS232
RS232
Audio
Audio
Audio
Audio
Audio
Audio
Audio
SIM
SIM
SIM
SIM
RTC Backup
Power Down
Synchronization
Audio
IO
I
I
I
O
O
O
I
O
I
O
O
IO
O
O
Ground
I
0
I
O
O
I
O
I
I
I
O
O
I
O
I
Ground
CCIO
CCCLK
CCVCC
CCGND
VDDLP
/PD
SYNC
EPP2
EPN2
EPP1
EPN1
MICP1
MICN1
MICP2
MICN2
RxD0
TxD0
CTS0
RTS0
DTR0
DCD0
CCIN
CCRST
VBATT+
GND
POWER
VDD
AKKU_TEMP
/IGT
DSR0
/RING
TC35
Signal Name
CCIO
CCCLK
CCVCC
CCGND
VDDLP
EMERGOFF
SYNC
EPP2
EPN2
EPP1
EPN1
MICP1
MICN1
MICP2
MICN2
RxD0
TxD0
CTS0
RTS0
DTR0
DCD0
CCIN
CCRST
BATT+
GND
POWER
VDD
BATT_TEMP
IGT
DSR0
RING0
TC35i
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4.4 Power Supply
4.4.1 General
TC35 and TC35i need to connect the power supply to the ZIF connector (5 pins each V
BATT+ and GND). Power supply has to be a single voltage source at BATT+.
Power Supply ASIC handles all the key functions for supplying power.
The following tables show an overview of main power supply points with TC35 and TC35i
Table 4-3: Power supply signals
Feature
Input voltage range:
Ignition:
Emergency shutdown:
(Watchdog)
General
TC35
Five pins of BATT+ and GND must be switched in parallel for supply purposes because peaks of up to 2A may occur.
V
I
= 3.3V to 5.5V
V
I,typ
I nom
= 4.2V
˜ 2A, in burst
V
R out out
V low,max t low
= 2.3V
≈ 220k.
≈
= 0.45V @ Iout = 10µA
100ms
Signal: falling edge and hold for t low
Open drain/collector driver is required to pull down this pin to power on the GSM
Engine.
ON
TC35i
Five pins of BATT+ and GND must be switched in parallel for supply purposes because peaks of up to 3A may occur.
V
I
= 3.3V to 4.8V
V
I,typ
I nom
= 4.2V
˜ 2A, in burst
R
I
V
˜ 100k Ω , C
IL max
I
˜ 1nF
= 0.5V @ I max
= 20µA t
V
Open max low
= 2.3V
≈ 100ms
Signal: falling edge and hold for t low
~~~ |____| ~~~ Active Low ≥ 100ms
Via /PD (pin no. 31)
This line must be driven by an Open Drain or Open Collector driver.
Emergency shutdown deactivates the modules power supply.
via EMERGOFF (pin no. 31)
This line must be driven by an Open Drain or
Open Collector driver.
Emergency shutdown deactivates the modules power supply.
Synchronization:
Indication of increased current consumption during uplink transmission burst
Power saving:
Signal ~~~
3.5s
|______| ~~~ Active Low ≥
V
V out,low,max
= 0.2V @ I= 0.1mA
out,high,min
V out,high,max
= 2.25V @ I=-0.1mA
= 2.76V
Supported trough AT+CFUN
Functionality levels <fun>=0
Signal ~~~ |______| ~~~ Active Low ≥ 3.2s
V
OLmax
V
OHmin
V
OHmax
= 0.3V @ I = 0.1mA
= 2.25V @ I = -0.1mA
= 2.73V
Supported trough AT+CFUN
Functionality levels <fun>=0, 5 , 6, 7 and
8
Table 4-4: Power consumption comparison
Device
TC35
TC35i
Stand-by
50 µ A typ
50 µ A typ
Sleep
Power consumption
Idle
3mA typ
3mA typ
10mA typ
25mA
Talk mode at
EGSM900/1800
300mA/270mA
300-400mA
Talk mode (peak) at
EGSM900/1800
1.8A typ
2A typ
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4.4.2 Power up / down scenarios
TC35 and TC35i are fully identical regarding the power up/down scenario with the following exception:
To actually turn off the TC35i, the emergency shutdown line has to be driven to ground for
≥
3.2s. The TC35 emergency shutdown line needs to be driven to ground for
≥
3.5s
For further information please consult the HW manual for TC35 and TC35i.
4.4.3 Automatic shutdown
To ensure proper operation of all assemblies under varying conditions, such as temperature, input voltage, transmission power etc., TC35 and TC35i features protection elements for automatic shutdown.
Automatic shutdown takes effect if:
• the TC35/TC35i board is exceeding the critical limits of overtemperature or undertemperature
• the battery is exceeding the critical limits of overtemperature or undertemperature in a battery application, undervoltage is detected
• overvoltage is detected.
4.4.3.1 Temperature dependent shutdown
The board temperature is constantly monitored by an internal NTC resistor located on the
PCB. The NTC that detects the battery temperature must be part of the battery pack circuit as described in the manual. The values detected by NTC resistor are measured directly on the board and the battery and are therefore, not fully identical with the ambient temperature.
Table 4-5: Maximum ratings and the associated URCs
Sending temperature alert
TC35 TC35i
^SCTM_A: 1
^SCTM_B: 1
^SCTM_A: -1
^SCTM_B: -1
^SCTM_A: 0
^SCTM_B: 0
^SCTM_A: -2
Caution: T amb
of battery between +56°C and +60°C.
Caution: T amb
of board between +55°C and +75°C.
Caution: T amb
+75°C.
of board between +65°C and
Caution: T amb
of battery between -14°C and -18°C.
Caution: T amb
of board between –20°C and –25°C.
Caution: T amb
29°C.
of board between –25°C and –
Battery back to uncritical temperature range
Board back to uncritical temperature range.
Automatic shutdown (URC appears no matter whether or not presentation was enabled)
^SCTM_A: 2 Alert: T amb
of battery >60°C. TC35 switches off immediately.
^SCTM_B: 2 Alert: T amb
of board >70°C. TC35 switches off immediately.
Alert: T amb
of battery < -18°C. TC35 switches off immediately
Alert: T amb
of board >75°C. TC35i switches off immediately.
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^SCTM_B: -2 Alert: T amb
of board <-25°C. TC35i switches off immediately.
Alert: T amb
of board <-29°C. TC35i switches off immediately.
The table below shows which conditions will wake up TC35 and TC35i from sleep mode
As it can be seen from the following table TC35i supports four sleep modes (5,6,7,8) more then TC35.
Table 4-6: Wake up from SLEEP mode scenarios
Event
Ignition line
/RTS0 or /RTS1 (falling edge)
Unsolicited Result Code (URC)
Incoming voice or data call
Any AT command (incl. outgoing voice or data call, outgoing SMS)
Incoming SMS depending on mode selected by AT+CNMI:
AT+CNMI=0,0
(= default, no indication of received SMS)
AT+CNMI=1,1
(= displays URC upon receipt of SMS)
AT+CFUN=0 ⇒
AT+CFUN=1
TC35
No
Yes
Yes
Yes
No
TC35i
Not Possible
(UART disabled)
AT+CFUN=5 or 6 ⇒
AT+CFUN=1
TC35i only - (TC35 does not support sleep modes: 5-8)*
TC35i
No
No
Yes
Yes
No
No
AT+CFUN=7 or 8 ⇒
AT+CFUN=1
No
No
No
No
No
No
Yes Yes No
RTC alarm
AT+CFUN=1
Yes
Not Possible
(UART disabled)
Yes
Yes
No
Yes
* TC35i supports SLEEP modes 0, 5, 6, 7 and 8. Different events or commands cause a wake-up from a SLEEP mode. The detailed descriptions of these modes can be found in respective HID documents.
4.4.4 Battery pack
For some applications the use of a battery pack may be required. TC35 and TC35i can be powered from a Li-Ion battery:
Table 4-7: Battery specifications - general
Supported Charging Technique
Operating modes
Output voltage (for charger)
Charging current
Maximum voltage spikes
General
TC35 TC35i
Trickle charging and processor controlled fast charging
SLEEP, IDLE or TALK/DATA mode
5.5V...8V (under load)
25V and must not exceed 1ms
Limited to 500mA
15V and must not exceed 1ms
Table 4-8: Battery specifications - charging
Module
TC35
TC35i
Battery specification
3.6 V
3.6 V
4.2 V
4.2 V
Maximum charging voltage Capacity
600-800 mAh max 850 mAh
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4.5 RTC backup
The internal Real Time Clock of is supplied from a dedicated voltage regulator in the power supply ASIC which is also active when TC35 and TC35i are in POWER DOWN status. Alarm function is included that allows waking up TC35 and TC35i without logging to the GSM network.
On the TC35i board a serial resistor is placed next to the VDDLP line in order to limit the input current of an empty capacitor. This eliminates the need of adding a resistor as required in applications based on the earlier TC35 module.
On the TC35 board there is no resistor placed on the board and it should be added when designing the GSM application
Baseband processor
RTC
Figure 1: RTC supply from capacitor for TC35i
PSU
1 k
ZIF
BATT+
VDDLP
+
Figure 2: RTC supply from capacitor for TC35
4.6 Control signals
Input and Output control signals are identical with both TC35 and TC35i device.
For further information please consult the HW manual for TC35 and TC35i.
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4.7 Interfaces
TC35 and TC35i interfaces are compatible. The following chapters shows a detailed comparison values for each interface. For further information please consult the TC35i HW manual
4.7.1 Serial Interface
Each device uses the same serial interface type with identical pin positions.
Compared to TC35 module that supports a fixed local character framing format between TA and TE, the new TC35i device offers various character framing formats specified in the next table. For further information please consult the AT command migration part of the document or the TC35i at command specification.
The table below shows a comparison of values for the serial interface with both devices.
Table 4-9: RS232 – Serial interface
RS232 - Serial interface
Type:
Feature
Signal levels:
Local character framing:
Selectable baud rate
Flow Control
TC35 TC35i
Serial asynchronous transmitter and receiver conforming to ITU-T RS232 Interchange Circuits DCE.
V
V
V out,high,max
V out,low,max out,high,min in,high,min
= 0.2V @ I = 0.1mA
= 2.25V @ I = -0.1mA
= 2.76V
= 1.95V, V i,h,max
=3.3V
fixed to 8 data bits, no parity and 1 stop bit
V
V
V
OLmax
OHmin
OHmax
= 0.3V @ I = 0.1mA
= 2.25V @ I = -0.1mA
V
IHmin
= 2.73V
= 1.95V, V
IHmax
= 3.45V
7E1, 7O1, 8E1, 8N1, 8O1, 7E2, 7O2, 8E2, 8N2,
8O2
Fixed range (300bps...115kbps)
Autobauding (1.2kbps...115kbps)
Fixed range (300bps...230kbps)
Autobauding (1.2kbps…230kbps)
RTS0 / CTS0 and/or software flow control via XON / XOFF.
4.7.2 SIM card interface
There are no changes on the integrated SIM interface with TC35 and TC35i.
For further information please consult the HW manual for TC35 and TC35i.
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4.7.3 Antenna Interface
4.7.3.1 General
Both devices TC35 and TC35i use a GSC connector to establish the RF connection to the host application. The table below shows a RF interface overview for each device.
Table 4-10: RF interface
Feature
Antenna connector:
Interface type:
Max RF power:
RF
Input sensitivity @ ARP
BER Class II < 2.4%
Min
RF interface - general
TC35
-104 [EGSM900]
-102 [GSM1800]
TC35i
GSC coaxial connector
GSM 900/1800
2W [EGSM900] / 1W [GSM1800]
-102dBm [EGSM900, GSM1800]
4.7.4 Audio Interface
Both TC35 and TC35i comprise two analogue audio interfaces, each with an analogue microphone input and an analogue loudspeaker output (see block diagram below).
To suit several types of equipment, there are several audio modes available which can be selected with the AT^SNFS command. The electrical characteristics of the voiceband part vary with the audio mode. For example, sending and receiving amplification, sidetone paths, noise suppression etc. depend on the selected mode and can be set with AT commands
(except for mode 1).
All analogue microphone inputs and loudspeaker outputs are balanced. A power supply for electret microphones is implemented in both interfaces, too. If not needed, they have to be decoupled with capacitors.
Detailed instructions on using AT commands are presented in the AT Command Manual.
TC35i only: Independently of the audio mode, analogue interfaces 1 or 2 can be selected and configured by AT commands.
Characteristics of audio modes
The electrical characteristics of the voiceband part depend on the current audio mode, set with AT^SNFS command. Voice band characteristics are the same for TC35 and TC35i. For further details please consult the HW manual.
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4.8 Electrostatic discharge
TC35 and TC35i are identical protected against Electrical Discharge. For additional information about ESD please consult the actual specification
4.9 Mechanical Dimensions
TC35 and TC35i provide the same type of connectors and mounting holes on the board. The position of mounting holes is identical as with TC35, as well as the order of external connectors. The outline mechanical dimensions are identical with both devices except the high. TC35i is a single side mounted device that makes it much thinner compared to TC35.
Figure 3: TC35 footprint
Figure 4: TC35i footprint
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4.10 Mounting and installation
Appropriate installation and mounting to the host housing / enclosure is essential for reliable operation of the GSM engine.
TC35i & TC35
The TC35 board provides three mounting holes. To properly mount it to the host device you can use M1.6 or M1.8 screws plus suitable washers. The maximum diameter of the screw head, including the washer, must not exceed 4 mm.
To prevent mechanical damage, be careful not to force, bend or twist the GSM engine. Make sure it is positioned flat against the host device.
Avoid placing the TC35 board tightly to the host device. Instead, it is recommended to set the spacers between the module and the host device. If your design approach does not allow for spacers make sure the host device provides an opening for the RF part.
Avoid exerting any pressure on the shielding covers. Contact springs or other components must not be fastened to the covers. In extreme conditions, you run the risk of short-circuit if the cover was damaged or distorted due to pressure. Furthermore, the covers must not be used to apply any solder joints.
For snap-in concept please be aware that the TC35i PCB is thinner then the TC35
PCB
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4.11 Terms and Abbreviations
Table 4-11: Glossary of terms
PCM
PGC
PLL
PSU
RAM
RF
RI
ROM
Mbps
MMI
MTBF
NTC
OC
OTP
PA(C)
PCB
RTC
Rx
SAW
I/O
ISO
ITU
LDO
LFBGA
Li-Ion
LNA
LO
GMSK
GSC
GSM
HR
HW
IC
IF
IMEI
EGSM
ESD
ESR
ETS
FE
FFC
FR
GAIM
DSB
DSP
DSR
DTR
DTX
EFR
EMC
E-GAIM
A/D
AF
AFC
AGC
AMR
ARP
ASIC
BB
CPU
CR
CTR
DAI
DFC
Analogue-to-Digital Converter
Audio Frequency
Automatic Frequency Control
Automatic Gain Control
Adaptive Multi Rate
Antenna Reference Point
Application Specific Integrated Circuit
Baseband
Central Processing Unit
Change Request
Common Technical Regulation
Digital Audio Interface
Digital Frequency Centering
Development Support Board
Digital Signal Processor
Data Set Ready
Data Terminal Ready
Discontinuous transmission
Enhanced Full Rate
Electro Magnetic Compatibility
Enhanced GSM Analog Interfacing Module
Enhanced GSM
Electrostatic Discharge
Equivalent Serial Resistance
European Telecommunication Standard
Front End
Flat Flexible Cable
Full Rate
GSM Analogue Interface Module
Gaussian Minimum Shift Keying
(Type of antenna connector)
Global Standard for Mobile Communications
Half Rate
Hardware
Integrated Circuit
Intermediate Frequency
International Mobile Equipment Identity
Input/Output
International Standards Organization
International Telecommunications Union
Low Drop Out
Low-Profile Fine-Pitch Ball Grid Array
Lithium-Ion
Low-Noise Amplifier
Local Oscillator
Mbits per second
Man Machine Interface
Mean Time Between Failures
Negative Temperature Coefficient
Offset Compensation
One Time Programmable
Power Amplifier (Control)
Printed Circuit Board
Pulse Code Modulation
Programmable Gain-Controlled Amplifier
Phase Locked Loop
Power Supply Unit
Random Access Memory
Radio Frequency
Ring Indication
Read-Only Memory
Real-Time Clock
Receive direction
Surface Acoustical Wave Filter
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SELV
SIM
SMS
SW
TBR
TBD
TBI
TDD
TDMA
Tx
UART
VCO
VCXO
VSWR
ZIF
Safety Extra Low Voltage
Subscriber Identification Module
Short Message Service
Software
Technical Based Regulation
To Be Defined
To Be Inserted
Time Division Duplex
Time Division Multiple Access
Transmit direction
Universal Asynchronous Receiver Transmitter
Voltage Controlled Oscillator
Voltage Controlled Quartz Oscillator
Voltage Standing Wave Ratio
Zero insertion force (connector)
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5 AT-Commands migration
TC35i was intended as a "feature-superset" successor to TC35.
AT Cellular command structure for TC35i corresponds to that of TC35 with the added improvements and new features.
Available commands for both TC35i and TC35 are listed and classified according to their implementation within each of the modules. The entire command set of TC35 is supported by
TC35i. Differences in test, query and execution syntax as well as in available parameters are noted for each command. Commands are classified in three main groups:
æ jointly supported commands
æ commands new with respect to TC35 and
æ TC35 commands not supported by TC35i
5.1 General comments
TC35i feature highlights
The commands below are either newly introduced or improvements based on the implementations present with other modules, e.g. M20, AC43/45, MC35.
æ AT+ICF, AT+IFC - TC35i re-introduces these commands that were present in M20 but not in
TC35 - character framing and flow control commands:
æ AT%D - Command also previously available in M20 - automatic dialling by DTR toggle was not supported by TC35
æ ATS0 now applies to incoming voice calls as well
æ AT+CMER, AT+CIND: mobile event reporting commands
æ AT^SRTC – incoming SMS ring indication
æ AT+CPBS - Extended ME phonebook up to 250 entries
æ AT&W – user profile extended - new commands added: AT+ICF, AT+IFC, AT\Qn, AT%D
æ AT+CMMS – keeps the data channel open for much faster throughput of SMS-SUBMIT messages
æ AT+CNMA is no longer required for SMS-DELIVER messages delivered directly to TE
æ AT^SSR - issues URCs related to availability of the SIM card
æ AT+CCUG – closed user group now available
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5.2 List of jointly supported AT-commands
AT-commands listed in the tables below are supported by both TC35i and TC35. Command defaults, however, may differ.
NOTE: Many commands are available only after the PIN has been entered. For a full list, please refer to respective AT reference manuals.
5.2.1 Standard V.25ter AT Commands
Table 5-1: Standard V.25ter AT commands
# AT Command
1 A/
2 +++
3 AT\Qn
Repeat previous command line
Switch from data mode to command mode
Flow control
Differing implementation
TC35i
AT\Qn included within user profile. See comments under AT&W.
TC35
-
4 ATA
5 ATD
TC35i
Answer a call
Mobile originated call to dial a number
Differing implementation
International calls to be dialled exclusively starting with "+", i.e. "00" at the beginning of a dialling string will not be translated into a "+".
TC35
-
6 ATD><mem><n> Originate call to phone number <n> in memory <mem>
7 ATD><n> Originate call to phone number selected from active memory
8 ATD><str>
9 ATDI
Originate call to phone number in memory with corresponding field
Mobile originated call to dialable ISDN number <n>
10 ATDL
11 ATE
Redial last telephone number used
Enable command echo
Differing parameters
TC35i TC35
MUX: Echo is disabled at the start of MUX mode and is not available on logical channels, ATE1 responds with ERROR
MUX: Echo is available on logical channels and is initially enabled only on main (data) MUX channel.
12 ATH
13 ATI
14 ATI[value]
15 ATL
16 ATM
17 ATO
18 ATQ
19 ATP
20 ATS0
TC35i
Disconnect existing connection
Display product identification information
Display additional identification information
Set monitor speaker loudness
Set monitor speaker mode
Switch from command mode to data mod
Set result code presentation mode
Select pulse dialling
Set number of rings before automatically answering the call
Differing implementation
TC35
ATS0 applies to incoming voice calls as well.
ATS0 applies only to incoming data or fax calls.
22 ATS2
23 ATS3
24 ATS4
25 ATS5
26 ATS6
27 ATS7
TC35i
Escape code sequence
Write command line termination character
Set response formatting character
Write command line editing character
Set pause before blind dialling
Set number of seconds to wait for connection completion
Differing implementation
TC35
ATS7 applies to voice calls as well.
ATS7 applies only to data calls.
28 ATS8
29 ATS10
30 ATS18
31 ATT
Set number of seconds to wait for comma dial modifier
Set disconnect delay after indicating the absence of data carrier
Extended error report
Select tone dialling
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# AT Command
32 ATV
33 ATX
34 ATZ
35 AT&C
36 AT&D
37 AT&F
38 AT&S
39 AT&V
40 AT&W
TC35i
Set result code format mode
Set CONNECT result code format and call monitoring
Set all current parameters to user defined profile
Set circuit Data Carrier Detect (DCD) function mode
Set circuit Data Terminal Ready (DTR) function mode
Set all current parameters to manufacturer defaults
Set circuit Data Set Ready (DSR) function mode
Display current configuration
Store current configuration to user defined profile
Differing parameters
TC35
User profile extended to include the following commands:
AT\V, AT+ICF, AT+IFC, AT\Q, AT%D, AT^STPB.
Commands: AT\V, AT+ICF, AT+IFC, AT\Q, AT%D are either not available or not included within user profile.
41 AT+GCAP
42 AT+GMI
43 AT+GMM
44 AT+GMR
45 AT+GSN
46 AT+ILRR
Request complete TA capabilities list
Request manufacturer identification
Request TA model identification
Request TA revision identification of software status
Request TA serial number identification (IMEI)
Set TE-TA local rate reporting
47 AT+IPR Set fixed local rate
Differing parameters (factory defaults); minor wording differences
TC35i TC35
<rate>
Factory settings, fixed: AT+IPR=57600
(230,4kbps possible in case of available memory)
<rate>
Factory settings, autobauding: AT+IPR=0
5.2.2 AT Commands for FAX
Table 5-2: AT commands for FAX
# AT
48 AT+FBADLIN
49 AT+FBADMUL
50 AT+FBOR
51 AT+FCIG
52 AT+FCLASS
53 AT+FCQ
54 AT+FCR
55 AT+FDCC
Bad Line Threshold
Error Threshold Multiplier
Query data bit order
Query or set the Local polling id
Fax: Select, read or test service class
Copy Quality Checking
Capability to receive
Query or set capabilities
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# AT
56 AT+FDFFC
57 AT+FDIS
58 AT+FDR
59 AT+FDT
60 AT+FET
61 AT+FK
62 AT+FLID
63 AT+FMDL
64 AT+FMFR
65 AT+FOPT
66 AT+FPHCTO
67 AT+FREV
68 AT+FRH
69 AT+FRM
70 AT+FRS
71 AT+FTH
72 AT+FTM
73 AT+FTS
74 AT+FVRFC
Data Compression Format Conversion
Query or set session parameter
Begin or continue phase C data reception
Data Transmission
End a page or document
Kill operation, orderly FAX abort
Query or set the Local Id setting capabilities
Identify Product Mode
Request Manufacturer Identification
Set bit order independently
DTE Phase C Response Timeout
Identify Product Revision
Receive Data Using HDLC Framing
Receive Data
Receive Silence
Transmit Data Using HDLC Framing
Transmit Data
Stop Transmission and Wait
Vertical resolution format conversion
Command
5.2.3 AT Commands originating from GSM 07.07
Table 5-3: AT commands from GSM 07.07
# AT Command
75 AT+CACM Accumulated call meter (ACM) reset or query
76 AT+CALA Set alarm time
Differing references to URC implementation in autobauding
TC35i TC35
Indicates ME wake-up into Alarm mode:
^SYSSTART ALARM MODE
+CALA: <text>
Indicates ME wake-up into Alarm mode:
^SYSSTART ALARM MODE
+CALA: <text>
If autobauding is active (AT+IPR=0) the URCs
^SYSSTART ALARM MODE does not appear but your individual <text> message will be displayed.
If autobauding is active (AT+IPR=0) the URCs
^SYSSTART ALARM MODE and +CALA: <text> do not appear. Therefore, avoid using Alarm mode in conjunction with autobauding.
77 AT+CAMM
78 AT+CAOC
79 AT+CBST
80 AT+CCFC
Accumulated call meter maximum (ACMmax) set or query
Advice of Charge information
Select bearer service type
Call forwarding number and conditions control
81 AT+CCLK
82 AT+CEER
Real Time Clock
Extended error report
83 AT+CFUN Set phone functionality
Differing parameters and notes
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#
TC35i
AT Command
<fun> parameter now accepts CYCLIC SLEEP MODE values
5, 6, 7 and 8, in addition to SLEEP MODE / FULL FUNCT., supported so far by TC35:
TC35
5
6
7
8
Reduced functionality (CYCLIC SLEEP MODE)
The serial interface is enabled with every "wake up". If characters are recognized the serial interface will stay active for 2 seconds (after last character).
Reduced functionality (CYCLIC SLEEP MODE)
The serial interface is enabled with every "wake up". If characters are recognized the serial interface will stay active for 10 minutes (after last character).Note: In any case, any circuit switched calls will be terminated.
Reduced functionality (CYCLIC SLEEP MODE)
The serial interface is enabled with every "wake up". If characters are recognized the serial interface will stay active for 2 seconds (after last character). The sole exception for wake up is at+cfun=1.
Reduced functionality (CYCLIC SLEEP MODE)
The serial interface is enabled with every "wake up". If characters are recognized the serial interface will stay active for 10 minutes (after last character). The sole exception for wake up is at+cfun=1.
<fun> parameter accepts only values 0 and
1.
Additional notes
TC35
• To check that ME has entered the
SLEEP mode, it is recommended to measure the supply current. Depending on the configuration of the SYNC pin, the SLEEP mode may also be indicated by a status LED (see "AT^SSYNC
Configure SYNC Pin", pg. 177).
• When in SLEEP mode, the following events may cause the ME to wake up: incoming call, Real Time Clock alarm, falling edge of RTS (RS-232, 2.65V
CMOS level) and receipt of an unsolicited result code (URC, see chapter 7.1.3).
Additional notes
TC35i
• To check the current operation mode see „AT^SSYNC
Configure SYNC Pin", pg. 181.
• To check if ME has entered SLEEP mode it is necessary to measure the supply current. SLEEP mode actually starts after remaining network activities were terminated.
• For SLEEP mode functionalities (<fun>=0, 5, 6) will not work without PIN1.
• After reset it is necessary to enter PIN1 again.
• In SLEEP mode the device wakes up by incoming call, short message, Real Time Clock alarm, falling edge of
RTS (RS-232 levels) and upon receipt of an unsolicited result code (URC, see chapter 10.1.4).
• In CYCLIC SLEEP mode device wakes up by incoming call, short message (only if notification output is configured using AT+CNMI=1,1), Real Time Clock alarm and upon receipt of an unsolicited result code
(URC, see chapter 10.1.4). RTS signal is only for handshake and does not wake up the ME.
• In CYCLIC SLEEP mode 7 and 8 device wakes up by incoming call, short message, Real Time Clock alarm and upon receipt of an unsolicited result code but continues the CYCLIC SLEEP after the event is finished. Only with at+cfun=1 the system wakes up permanently. RTS signal is only for handshake and does not wake up the ME.
84 AT+CGMI
85 AT+CGMM
86 AT+CGMR
87 AT+CGSN
88 AT+CHLD
89 AT+CHUP
90 AT+CIMI
Request manufacturer identification
Request model identification
Request revision identification of software status
Request product serial number identification (IMEI) identical to GSN
Call hold and multiparty
Hang up call
Request international mobile subscriber identity
91 AT+CLCC
92 AT+CLCK
List current calls of ME
Facility lock
93 AT+CLIP
94 AT+CLIR
Calling line identification presentation
Calling line identification restriction
Differing implementation
TC35i TC35
TC35i supports +CLIR as a proper AT command with its own syntax.
TC35 implementation was limited to ATD command with SS codes.
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# AT Command
95 AT+CLVL
96 AT+CMEE
97 AT+CMUT
98 AT+CMUX
99 AT+COPN
100 AT+COPS
101 AT+CPAS
102 AT+CPBR
103 AT+CPBS
104 AT+CPBW
105 AT+CPIN
106 AT+CPIN2
107 AT+CPUC
108 AT+CPWD
109 AT+CR
Loudspeaker volume level
Report mobile equipment error
Mute control
Enter multiplex mode
Read operator names
Operator selection
Mobile equipment activity status
Read current phonebook entries
Select phonebook memory storage
Write phonebook entry
Enter PIN
Enter PIN2
Price per unit and currency table
Change password
Service reporting control
110 AT+CRC
111 AT+CREG
112 AT+CRLP
113 AT+CRSM
114 AT+CSCS
115 AT+CSNS
116 AT+CSQ
117 AT+CSSN
Set Cellular Result Codes for incoming call indication
Network registration
Select radio link protocol param. for orig. non-transparent data call
Restricted SIM access
Set TE character set
Single Numbering Scheme
Signal quality
Supplementary service notifications
118 AT+CUSD
119 AT+VTD=<n>
Unstructured supplementary service data
Tone duration
120 AT+VTS DTMF and tone generation (<Tone> in {0-9, *, #, A, B, C, D})
Differing implementation
TC35i TC35
Available without entering the PIN.
PIN required.
121 AT+WS46 Select wireless network
5.2.4 AT commands originating from GSM 07.05 for SMS
Table 5-4: AT commands for SMS
# AT
122 AT+CMGC
123 AT+CMGD
124 AT+CMGF
125 AT+CMGL
126 AT+CMGR
Send an SMS command
Delete SMS message
Select SMS message format
List SMS messages from preferred store
Read SMS message
Command
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# AT
Differing parameters
TC35i
Filler "FF" will be displayed at PDU status report if
<FF> is set to 1 at AT^SSCONF
Command
127 AT+CMGS
128 AT+CMGW
129 AT+CMSS
130 AT+CNMA
131 AT+CNMI
TC35i
Send SMS message
Write SMS message to memory
Send SMS message from storage
New SMS message acknowledge to ME/TE, only phase 2+
New SMS message indications
Differing implementation related to GSM phase 2+ compatibility issues and +CNMA requirements; differing notes
TC35
AT+CNMI settings requiring phase 2+ should be independent from AT+CSMS!
WRITE syntax:
WRITE syntax:
Note 2: - (not enforced)
Note 3: - (not enforced)
Note2: The rules <mt>=2 and <mt>=3 for storing received
SM are possible only if phase 2+ compatibility is activated with
+CSMS=1
Note3: The parameter <ds>=1 is only available in phase 2+
Note: - (not required) Note:
Parameters <mt>=2,3 and <ds>=1 are only available with
GSM phase 2+ (see +CSMS=1). Incoming SMs or Status
Reports have to be acknowledged with AT+CNMA=0 when using these phase 2+ parameters.
132 AT+CPMS Preferred SMS message storage
Differing parameters and implementation
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#
TC35i
AT Command
Additional storage in ME memory for 25 SMS:
<mem1> Messages to be read and deleted from this memory storage:
"SM" storage
SIM message
<mem2> Messages will be written and sent to this memory storage:
"SM" SIM message storage
"ME" Mobile Equipment message storage
"MT" Any of the storages associated with ME
"ME" Mobile Equipment message storage
"MT" Any of the storages associated with ME
<mem3> Received messages will be placed in this memory storage if routing to TE is not set. See command AT+CNMI with parameter <mt>=2.
"SM" SIM message storage
"MT" Any of the storages associated with ME
<usedx>Number of messages currently in
<memx>
<totalx> Number of messages storable in
<memx>
TC35
-
Note:
Only "SM" storage available:
<mem1> Memory to be used when listing, reading and deleting messages:
"SM" SIM message storage
<mem2> Memory to be used when writing and sending messages:
"SM" SIM message storage
<mem3> Received messages will be placed to this storage if routing to TE is not set. See AT+CNMI command with parameter <mt>=2 (Chapter 5.10).
"SM" SIM message storage
<usedx> Number of messages currently in
<memx>
<totalx> Number of messages storable in <memx>
Note:
The Mobile Equipment storage "ME" has space for
25 short messages.
The storage "MT" is the sum of the storages "ME" and "SM". The indices (<index>) from 1 to 25 are associated to the "ME" storage. Indices equal to
26 and higher belong to the "SM" storage.
Incoming short messages with message class 1 or
2 (refer <dcs> GSM 03.38) will be stored in the
"ME" or "SM" storage only. Therefore the ^SMGO:
2 indication (see AT^SMGO) could occur, without the indication ^SMGO: 1 before.
When switching parameter <mem3> from ''MT'' to
''SM'' the ''ME'' storage will be filled with dummy short messages. Therefore the execution can last up to 35 seconds if all the 25 records have to be written.
When switching back from ''SM'' to ''MT'' the dummy short messages will be deleted. The execution could last 35 seconds, too.
In case of short messages present in the ''ME'' storage they will be remembered when switching back from ''SM'' to ''MT''.
The <mem1>, <mem2> and <mem3> parameter will be stored in non-volatile memory.
Multiplexer: The parameter <mem3> will be the same for all instances. The parameter
<mem2> and <mem3> can differ from one instance to the other.
133 AT+CSCA
134 AT+CSCB
135 AT+CSDH
SMS service centre address
Select cell broadcast message
Show SMS text mode parameters
136 AT+CSMP
137 AT+CSMS
Set SMS text mode parameter
Select Message Service
Differing implementation related to GSM phase 2+ compatibility issues and +CNMA requirements; differing notes
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AT
Note:
If CSMS is switched to <service> = 1, all messages with phase 2+ (see AT^SCNMI with <mt>= 2,
<mt>= 3, <ds>= 1) has to be acknowledged with
AT+CNMA (see AT+CNMA)
Command
TC35
Note:
If CSMS Mode is switched from Phase 2+ to Phase
2 and one or more CNMI Parameter are Phase 2+ specific a '+CMS ERROR: unknown error' will appear. It is recommended to switch the CNMI
Parameters to Phase 2 specific values before entering Phase 2.
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5.2.5 Siemens defined AT commands for enhanced functions
Table 5-5: Siemens defined AT commands
# AT
138 AT+CXXCID Display card ID (identical to AT^SCID)
Differing implementation
TC35i
Available without entering the PIN.
Command
TC35
PIN required.
139 AT^MONI Monitor idle mode and dedicated mode
Differing parameters; minor differences in wording of command syntax description; differing notes
140 AT^MONP
141 AT^SACM
142 AT^SBC
Monitor neighbour cell
Advice of charge and query of ACM and ACMmax
Battery charging / discharging and charge control
143 AT^SCID Display SIM card identification number
Differing implementation
TC35i
Available without entering the PIN.
TC35
PIN required.
144 AT^SCKS
145 AT^SCNI
Set SIM connection presentation mode and query SIM connection status
List Call Number Information
146 AT^SCTM Set critical operating temperature presentation mode or query temperature
Differing parameters, notes and examples
TC35i TC35
TC35i has two additional parameters:
<p> output/suppress <temp> in read syntax
<temp> board temperature, Celsius
N/A
<p> 0 Suppress output of <temp> in test and read command.
1 Output <temp> in test and read command.
<temp> Board temperature in Celsius. Is comprised between the lowest temperature limit and the uppermost temperature limit.
Syntax:
AT^SCTM=<n>[,<p>]
147 AT^SDLD
148 AT^SHOM
149 AT^SLCD
150 AT^SLCK
151 AT^SMGL
152 AT^SMGO
153 AT^SMGR
154 AT^SMONC
Delete the .last number redial. memory
Display Homezone
Display Last Call Duration
Facility lock
List SMS messages from preferred storage
Set or query SMS overflow presentation mode or query SMS overflow
Read SMS message without set to REC READ
Cell Monitoring
155 AT^SMSO
156 AT^SM20
Differing parameters
TC35i
Switch off mobile station
Set M20 Compatibility
TC35
Additional parameter:
<n>
<m> parameter.
Call compatibility parameter
0 Compatible to x35 Mobile
Phones
1 Compatible to M20
Short message write compatibility
0
1
Compatible to x35 Mobile
Phones
Compatible to M20
<n>
0 Compatible to x35/37mobiles.
If this mode is active, TA returns OK right after attempting a call.
1 Compatible to M20.
If the M20 mode is active, TA returns OK once the call is successfully set up. Issuing any command before TA returns OK will cancel the call setup.
157 AT^SNFD
158 AT^SNFI
159 AT^SNFM
160 AT^SNFO
Set audio parameters to manufacturer default value
Set microphone path parameters
Mute microphone
Set audio output (= loudspeaker path) parameter
161 AT^SNFPT
162 AT^SNFS
Call progress tones
Select audio hardware set
Differences in command syntax description; differing notes
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#
TC35i
AT Command
<audioMode>
1 Audio mode 1: Standard mode optimised for the default handset, that can be connected to the analogue interface 1 (see your "Hardware Interface
Description" for information on this handset.) To adjust the volume use the knob of the default handset. This handset can be used in audio mode 4 with user defined parameters.
Note: The default parameters are determined for type approval and are not adjustable with AT commands.
TC35
<audMode>
1 Audio mode 1: Standard mode optimised for the default handset, that can be connected to the analogue interface 1 (see your "Hardware Interface
Description" for information on this handset.) To adjust the volume use the knob of the default handset. In audio mode 4 and 5, this handset can be used with user defined parameters.
Note: The default parameters are determined for type approval and are not adjustable with AT commands.
163 AT^SNFV
164 AT^SNFW
TC35i
Set loudspeaker volume
Write audio setting in non-volatile store
Differing implementation and notes
TC35
ME stores the following audio parameter values in non-volatile memory:<audioMode>, <inBbcGain>,
<inCalibrate>, <outBbcGain>, <outCalibrate[0]>
... <outCalibrate[4]>, <side Tone>
Saved parameters: <inBbcGain>, <inCalibrate>,
<outBbcGain>, <outCalibrate[0]> ...
<outCalibrate[4]>, <side Tone>
165 AT^SPBC
166 AT^SPBG
167 AT^SPBS
168 AT^SPIC
169 AT^SPLM
Search the first entry in the sorted telephone book
Read entry from active telephone book via sorted index
Steps the selected phonebook alphabetically
Display PIN counter
Read the PLMN list
170 AT^SPLR
171 AT^SPLW
172 AT^SPWD
173 AT^SSCONF
Read entry from the preferred operators list
Write an entry to the preferred operators list
Change password for a lock
SMS Configuration
174 AT^SSDA
175 AT^SSYNC
Set Display Availability
Configure SYNC Pin
Differing notes on implementation (references to TC35T) and operating modes
176 AT^STCD Display Total Call Duration
5.3 List of new AT-Commands
This chapter lists only new commands, supported exclusively by TC35i.
5.3.1 AT Commands for SIM Application Toolkit (GSM 11.14)
Table 5-6: AT commands for SAT
# AT
1 AT^SSTA
2 AT^SSTN
3 AT^SSTGI
4 AT^SSTR
Remote-SAT Interface Activation
Remote-SAT Notification
Remote-SAT Get Information
Remote-SAT Response
Command
5.3.2 AT Commands originating from GSM 07.07
Table 5-7: AT commands from GSM 07.07- new
# AT
5 AT+CCWA
6 AT+CCUG
7 AT+CMER
Call waiting
Closed User Group
Mobile Equipment Event Reporting
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8 AT+CIND
AT
Indicator Control
Command
5.3.3 Commands from change requests TC/AC/MC35
Table 5-8: AT commands from change requests
#
9 AT^SRTC
AT
Select, query and test ringing tones
Command
5.3.4 New features for TC35i only – misc.
Table 5-9: New TC35i features
# AT
10 AT\V
11 AT^SAIC
12 AT^SMOND
13 AT^SSR
14 AT%D
15 AT+ICF
16 AT+IFC
17 AT+CMMS
Configure CONNECT Response
Audio Interface Configuration
Monitoring
SIM READY
Automatic dial on DTR line activation
Set TE-TA control character framing
Set TE-TA local data flow control
More Messages to Send
Command
5.3.5 Siemens defined AT commands for enhanced functions
Table 5-10: New Siemens defined AT commands
#
18 AT^SNFA
19 AT^SLMS
20 AT^SBV
21 AT^SPBD
AT
Set or query of microphone attenuation
List Memory Storage
Battery Voltage
Delete the given Phonebook
Command
5.4 List of unsupported AT-Commands
TC35i supports the entire TC35 AT command set.
5.5 List of AT-Commands for V.25ter compatibility
These commands return "OK" but have no functionality in both TC35i and TC35.
Table 5-11: V.254ter compatibility commands
#
1 ATL
2 ATM
3 ATP
4 ATS2*
5 ATS6
6 ATS8
7 ATT
AT Command
Set monitor speaker loudness
Set monitor speaker mode
Select pulse dialling
Escape code sequence
Set pause before blind dialling
Set number of seconds to wait for comma dial modifier
Select tone dialling
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*not "formally" listed as supported by TC35i.
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