s TC35 Terminal User Guide www.siemens.com/wm www.siemens.
Safety information Radio devices have limitations in the vicinity of electronic devices: • Switch the TC35 Terminal off when you are in a hospital or near medical devices like pacemakers or hearing aids. The Terminal may interfere with the operation of these devices. • Switch the TC35 Terminal off when flying. Secure it so that it cannot be switched on inadvertently. • Switch the TC35 Terminal off when you are near petrol stations, fuel depots, chemical plants or blasting operations.
Contents Safety information ................................ 1 Contents ................................................. 2 Overview ................................................ 4 Front view .......................................... 4 Rear view ........................................... 4 Product description............................... 5 Highlights ........................................... 6 Applications ....................................... 6 Features...........................................
Contents Operating states / LED ........................ POWER DOWN ............................... Network search ............................... Standby ............................................ Talk .................................................. 29 30 31 31 31 AT command control .......................... 32 SW update ........................................... 33 Compatibility ....................................... 34 Compatibility withthe predecessor, the M20Terminal .........................
Overview Front view Plug-in power RS232 interface (9-pin D-Sub) Rear view LED display Handset connector 4 Antenna connector Mini-SIM card holder
Product description The TC35 Terminal is a compact GSM modem for the transfer of data, voice, SMSand faxes in GSM networks. Industrial standard interfaces and an integrated SIMcard reader mean it can be used rapidly, easily and universally as a dual band GSM Terminal. Its performance band width and the robust housing make it easier to quickly implement new applications in areas such as telemetry and telematics. The features, functions and interfaces of the GSM Terminal TC35 T are described below.
Product description Highlights • Dual-band EGSM900 / GSM1800 • • • • • • • Data, voice, SMS and fax R&TTE approval, GCF approval Easy to integrate Industrial interfaces LED display Wide input voltage range Highly compact, light and powerful Applications • Fleet management • • • • • • • 6 Teleservice Security systems Telematics Telemetry Remote monitoring Remote meter reading Vending machines
Features Product data • Dual-band EGSM900 and GSM1800 • Certified in accordance with GSM phase2/2+ • Output performance: – Class 4 (2 W) for EGSM900 – Class 1 (1 W) for GSM1800 • Control via AT commands • Input voltage range +8V ... +30V • Dimensions: 65 x 74 x 33mm • Weight: approx. 130g Certification • R&TTE approval • GCF approval Audio • Half rate (HR) • Full rate (FR) • Enhanced full rate (EFR) SMS • Point-to-point MT and MO • SMS cell broadcast • Text and PDU mode Data • CSD up to 14.
Features Supplementary • Phone book services • Multiparty • DTMF (Dual Tone Multi Frequency) External interfaces • Connector for plug-in power supply unit • • • • Handset audio interface Mini-SIM card holder Antenna connector FME (male) RS232 interface (V.24/V.28 on the Sub-D socket) Accessories Antennae, SIM cards, power supply units, RS232 cables, handsets and a mounting kit for top-hat rails can be obtained from different manufacturers.
Installation Package contents / • Package unit: TC35 Terminal scope of delivery and user guide L36880-N8600-A100 • TC35 Terminal S30880-S8600-A10 • User guide A31008-H8600-A1-*-7619 Safety and • The Terminal should be installed and set up only by qualified personnel. installation • Connect a fast 1.25A fuse to the incoming information line for the positive supply voltage to protect the Terminal.
Installation Mounting kit for top-hat rail installation The TC35 Terminal can be attached to a 35mm top-hat rail using this mounting kit. There are two screws that are used tofix the top-hat rail adapter to the TC35 Terminal. The TC35 Terminal can be inserted onto the top-hat rail using this adapter.
Interface description The following interfaces are available on the TC35Terminal: • Connector for the plug-in power supply unit • Handset connector • Mini-SIM card holder • Antenna connector FME (male) • RS232 interface (V.24/V.28 on the D-Sub socket) Plug-in power The TC35 Terminal receives its power supply supply unit in a wide voltage range (+8 V ... +30 V) via the power supply connectors. Two additional control lines are used for switching the Terminal on/off (resetting).
Interface description Purpose of the connectors/connections Signal name PIN I/O Description Parameters + 1 Positive supply voltage connection +8V...+30V max. 33V for 1min I 2 Free PD_IN 3 I Reset input high active UIH > + 5 V (>3.5s) UIL < + 2 V IGT_IN 4 I Ignition input high active UIH > +5V (>200ms) UIL < + 2 V 5 GND 6 Free I Negative supply voltage connection Reference potential for PD_IN and IGT_IN 0V Use and operation The power supply is implemented by the +- and the GND wire.
Interface description Polarity reversal protection Polarity reversal protection is implemented by means of a power diode. The diode has a reverse voltage of 400V. Overvoltage protection Overvoltages are suppressed by a Zener diode after the polarity reversal protection diode. Fuses A permanently installed, non-replaceable fuse in the TC35 Terminal ensures electrical safety in the event of faults. Connect a fast 1.
Interface description Interference immunity • The cable length must not exceed 3m • Current carrying capacity <1.5A (Western modular jack) • Nominal signal range: 0...+30V • Max. load current 1.5A • Electrical fast transient burst requirements in accordance with ETS 300-342-1 • Surge immunity requirements in accordance with ETS 300-342-1 • Electrostatic discharge requirements in accordance with ETS 300-342-1 • Immunity RF common mode 0.
Interface description Handset connector The handset is connected via a 4-pin MiniWestern socket. The audio interface has a symmetrical design. The audio interface can be configured by AT commands. Threeaudio modes are prepared in the GSM module for this purpose. Mode 1 (default): The "Handset for Cellular Engine Siemens Terminal M20T, MC35T, TC35T, DSB35" can be connected to the TC35 Terminal (approved configuration and recommended handset). Mode 4: Any handset can be connected to the TC35Terminal.
Interface description Handset connector 2 3 1 4 1 MICN 2 EPN 3 EPP 4 MICP Purpose of the connectors/connections Signal PIN I/O name MICN 1 MICP 4 Description Parameters DC:O Microphone input DC (no load): AC:I minus U0 = 6 . 0 V ± 1 0 % (MICP) DC:O Microphone input U0 =0V (MICN) AC:I plus Ri = 4.7k (MICP) Ri = 4.7k (MICN) AC: Uimax = 1.03V PP Zi = 2 k Ω Gain range:0...42dB EPN 2 O Earpiece connector U0max = 3 . 7 V PP, no load EPP 3 O Earpiece connector Gain range:–18...
Interface description Use and operation A connected handset can be used when the customer application initiates the TALK state with AT commands via the RS232 interface. Interference immunity • The connecting cable must not exceed 3m in length. • Electrical fast transient burst requirements (cable is >3m) • Surge immunity requirements not specified • Electrostatic discharge requirements in accordance with ETS 300-342-1 • Immunity RF common mode 0.
Interface description SIM card connector The connector is intended for 3V SIM cards in accordance with GSM11.12 phase2 to operate the Terminal. The SIM card (3V type) must be inserted in the card holder to put the TC35 Terminal into operation. 1. Make sure that there is no voltage applied to the TC35 Terminal. 2.Operate the eject mechanism (yellow pin next to the card holder) to open the card holder by pressing it down with a pen, for example.
Interface description 3.Insert the SIM card in the SIM card holder and push it back into the housing.
Interface description Purpose of the connectors/connections Signal name PIN I/O Description of the Parameters GSM module connectors CCIN 24 Input for detection of the SIM card; high active I Ri = 1 0 0 k Ω to GND UiLmax = 0 . 4 V @ I = 0 .1mA UiHmin = 1.95V UiHmax = 3 . 3 V CCRST 25 O Restart R0 = 2 2 0 Ω CCIO 26 I/O Date input/output Input: Ri ≥ 1 M Ω Output: R0 = 2 2 0 Ω CCCLK 27 O Clock R0 = 2 2 0 Ω CCVCC 28 O Supply voltage CCVCCmin =2.84V CCVCCmax =2.
Interface description The Bootbox BB35 enables software to be updated via the SIM interface. The Bootbox is connected instead of a SIM card (see "Bootbox BB35" on page33). Interference immunity Electrostatic discharge requirements in accordance with ETS 300-342-1 Antenna connector A dual band antenna (GSM 900/1800) can FME (male) beconnected to the RF interface. The connection is implemented as a 50Ω FME (male) coaxial jack.
Interface description Transmission type and method • Digitally modulated RF burst signal • GMSK in accordance with GSM05.04 • Half duplex • Bidirectional Interference immunity • Electrostatic discharge requirements in accordance with ETS 300-342-1 • Electrical fast transient burst requirements (cable is >3m) • Surge immunity requirements not specified • Electrostatic discharge requirements in accordance with ETS 300-342-1 • Immunity RF common mode 0.
Interface description RS232 interface The RS232 interface is the interface for the application software and the connection to the PC. The customer application communicates with the TC35 Terminal or the TC35 GSM engine by means of ATcellular commands. The RS232 interface is implemented as a 9-pin D-Sub socket with a screw fitting.
Interface description Purpose of the connectors/connections Signal name PIN I/O Description Parameters DCD 1 O active high >5V low <–5V RXD 2 O The functions correspond to those of a serial interface on the basis of a V.24 protocol. TXD 3 I active high >2.4V low <1.8V DTR 4 I active high >2.4V low <1.8V GND 5 DSR 6 O active high >5V low <–5V RTS 7 I active high >2.4V low <1.
Interface description Interference immunity • The connecting cable must not exceed 1.8m in length. • Nominal signal range: ±15V • Max. load current 1A • Electrical fast transient burst requirements not specified • Surge immunity requirements not specified • Electrostatic discharge requirements in accordance with ETS 300-342-1 • Immunity RF common mode 0.15–80MHz in accordance with ETS300-342-1 Connectible RS232 connecting cable Item Order no.
Startup Before startup, the components required for your application must be connected. The SIM card must be inserted in a deenergized state. The TC35 Terminal is ready for operation when supply voltage is applied and the ignition line is activated. If the recommended plug-in power supply unit is used, the ignition line is already connected to the supply voltage line, and the TC35 Terminal is thus immediately switched to the active state. It starts the network search and registers with network operator.
Startup In its energized state, the GSM module provides the supply voltage (VDD). VDD ensures that the switching regulator remains on, even when its closing condition is lost (i.e. IGT_IN=low). Explanation: VBAT=operating voltage for the GSM module VDD=supply voltage from the module Activation of the RS232 control line DTR The TC35 Terminal can be switched on in the same way as via IGT_IN by activating the RS232 control line DTR (high signal).
Startup Activation of the PD_IN reset signal on the power supply connection The POWERDOWN line on the GSM module is connected to the watchdog input pin of the power supply ASIC, which can only be switched off by changing the watchdog condition. To do this, the PD_IN Terminal reset line is active (high) for at least 3.5s. This results in immediate, "hard" disconnection, with the TC35 Terminal unable to sign off correctly from the base station in the STANDBY and TALK operating states .
Operating states / LED LED The LEDs display the following operating states of the Terminal: Operating state LED After connecting the plug- On for 2 s in power supply unit POWER DOWN Off – Network search or – no SIM card is inserted or – no PIN is entered (via PC) or – no GSM network is available Flashes rapidly STANDBY Flashes slowly (registered in the network) Connection (TALK) On 29
Operating states / LED Note: Usually, the network search takes only a fewseconds till the Terminal is registered. If the flashing continues, this means that no SIM card is inserted, no PIN number is entered or no GSM network is available. POWER DOWN Once the operating voltage is applied (+ and GND), the TC35 Terminal is in the POWER DOWN state. The operating voltage for the GSM module is disconnected (the switching regulator is off). In other words, the software of the GSM module is not active.
Operating states / LED Network search (no SIM card, no PIN number, no GSM network) In the network search state, the TC35 Terminal searches for a GSM network. All the components in the GSM Terminal (module) that are not required are shut down in several stages by the energy-saving software.
AT command control The TC35 Terminal is controlled and programmed by means of AT commands. The AT command structure corresponds to the TC35 module used. The AT commands can be obtained from the ICM WM home page: www.siemens.com/wm.
SW update A SW update for the TC35 Terminal takes place via the RS232 interface or the SIM interface. These interfaces must be designed in such a way that the upgrading ofthe TC35 Terminal is integrated in the application. The software can be obtained from the ICM WM home page. The SW package is self-unpacking and menu-driven. The Bootbox BB35 is required for updating via the SIM interface.
Compatibility Compatibility withthe predecessor, the M20Terminal The direct predecessor of the TC35 Terminal is the M20 Terminal. The antenna connector is not compatible. The modified version (passive version) of the Votronic handset must be operated at the audio interface in accordance with HH-SI-30.3/V1.1/0.
Certification / maintenance Certification The TC35 with its IMEI number is approved for operation in GSM networks and complies with the following EU directives: • Directive 89/336/EEC on electromagnetic compatibility • Directive 98/13/EC, CTR 19 and CTR 20, on telecommunications Terminal equipment • Directive 98/13/EC, CTR 31 and CTR 32, on telecommunications Terminal equipment • Directive 73/23/EEC on low voltage, supplemented by Directive 93/68/EEC Maintenance tips • Treat the SIM card with the same care
Index A Accessories 8 Antenna connector 4, 11, 21 AT command control 32 Audio 7 B Bootbox 33 C Certification 7, 35 Compatibility 34 D Data 7 E External interface 8 F Fax 7 Features 7 Fuses 13 H Handset connector 4, 11, 15 I Installation 9 Interface description 11 L LED 4, 29 M Maintenance 35 Mini-SIM card holder 4, 11 36 N Network search 31 O Operating state 29 Overview 4 Overvoltage 13 P Package contents / scope of delivery 9 Plug-in power supply unit 4, 11 Polarity reversal 13 Power down 30 Product data
Issued by Siemens AG ICM Wireless Modules Haidenau Platz 1, D-81667 Munich Germany www.siemens.com/wm Subject to changes in technology and availability. Order no.
