MC35i Terminal Siemens Cellular Engine Version: DocID: 02.00a MC35i_T_HD_v02.
MC35i Terminal Hardware Interface Description Confidential / Released s Document Name: MC35i Terminal Hardware Interface Description Version: 02.00a Date: February 16, 2007 DocId: MC35i_T_HD_v02.00a Status: Confidential / Released General Notes Product is deemed accepted by Recipient and is provided without interface to Recipient’s products. The documentation and/or Product are provided for testing, evaluation, integration and information purposes.
MC35i Terminal Hardware Interface Description Confidential / Released s Contents 0 Document history....................................................................................................... 5 1 Introduction ................................................................................................................ 6 1.1 References ......................................................................................................... 6 1.2 Directives and Standards ....................
MC35i Terminal Hardware Interface Description Confidential / Released s Tables Table 1: Directives..................................................................................................................7 Table 2: Standards of type approval.......................................................................................7 Table 3: Requirements of quality............................................................................................
MC35i Terminal Hardware Interface Description Confidential / Released 0 s Document history Preceding document: "MC35i Terminal Hardware Interface Description" Version 02.00 New document: "MC35i Terminal Hardware Interface Description" Version 02.00a Chapter What is new 1.2 Added MII standards to list of directives and standards (Table 4 and Table 5). Preceding document: "MC35i Terminal Hardware Interface Description" Version 01.
MC35i Terminal Hardware Interface Description Confidential / Released 1 s Introduction This document describes the hardware of the Siemens MC35i Terminal. The information is 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 MC35i Terminal.
MC35i Terminal Hardware Interface Description Confidential / Released 1.2 s Directives and Standards MC35i Terminal has been approved to comply with the directives and standards listed below. Table 1: 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).
s MC35i Terminal Hardware Interface Description Confidential / Released Table 3: Requirements of quality IEC 60068 Environmental testing DIN EN 60529 IP codes Table 4: Standards of the Ministry of Information Industry of the People’s Republic of China SJ/T 11363-2006 “Requirements for Concentration Limits for Certain Hazardous Substances in Electronic Information Products” (2006-06). SJ/T 11364-2006 “Marking for Control of Pollution Caused by Electronic Information Products” (2006-06).
MC35i Terminal Hardware Interface Description Confidential / Released 1.3 s 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 MC35i 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.
MC35i Terminal Hardware Interface Description Confidential / Released SOS s IMPORTANT! 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.
MC35i Terminal Hardware Interface Description Confidential / Released 1.
MC35i Terminal Hardware Interface Description Confidential / Released Abbreviation Description 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 R
MC35i Terminal Hardware Interface Description Confidential / Released 2 s Key features of MC35i Terminal Table 7: Key features Feature Implementation Transmission Voice, Data, SMS, Fax Power supply Single supply voltage 8V to 30V GSM class Small MS Frequency bands Dual Band E-GSM 900 and GSM 1800 Compliant to GSM Phase 2/2+ Transmit power Class 4 (2W) for EGSM900 Class 1 (1W) for GSM1800 GPRS connectivity GPRS multi-slot class 8 GPRS mobile station class B SIM card reader Internal Suppor
MC35i Terminal Hardware Interface Description Confidential / Released s Feature Implementation Firmware upgrade Upgradable via serial interface or, via SIM interface from BB35 Bootbox. Ordering information are listed in Chapter 7. Instructions for the firmware download can be found in [3]. Real time clock Implemented (clock frequency 32.
s MC35i Terminal Hardware Interface Description Confidential / Released 3 Interface description 3.
s MC35i Terminal Hardware Interface Description Confidential / Released 3.2 Block diagram of a GSM application Figure 1 shows a block diagram of a sample configuration that incorporates a MC35i Terminal and typical accessories.
MC35i Terminal Hardware Interface Description Confidential / Released 3.3 s The MC35i GSM/GPRS engine The MC35i GSM/GPRS engine is a major functional component of the MC35i Terminal that handles all the processing for audio, signal and data within a GSM/GPRS cellular device. Internal software runs the application interface and the whole GSM and GPRS protocol stack. A UART forms the interface to the Terminal Circuit.
MC35i Terminal Hardware Interface Description Confidential / Released 3.4 s Operating modes The table below briefly summarizes the various operating modes referred to in the following chapters. Table 9: Overview of operating modes Mode Function Normal operation SLEEP Various power saving modes set by AT+CFUN command. Software is active to minimum extent. If the Terminal was registered to the GSM network in IDLE mode, it remains, in SLEEP mode, registered and pageable from the BTS.
s MC35i Terminal Hardware Interface Description Confidential / Released 3.5 Terminal circuit GSM/GPRS Status SIM Card Interface VBATT+ LED SIM 6 DC LED driver DC CCxxx Lin. Reg. RS232 Interface.
s MC35i Terminal Hardware Interface Description Confidential / Released 3.5.1 Power supply and On/Off control The power supply of the MC35i Terminal has to be a single voltage source of VPLUS=8V…30V capable of providing a peak current (pulsed 577ms at T=4.615ms) of about 1.2A at 12V during an active transmission. The uplink burst causes strong ripple (drop) on the power lines. The drop voltage should not exceed 1V, but the absolute minimum voltage during drops must be >7.6V.
MC35i Terminal Hardware Interface Description Confidential / Released 3.5.1.1 s Turn MC35i Terminal on The IGT_IN signal (pin 4) switches the MC35i Terminal on. After start-up, the MC35i Terminal enters the net searching state. The IGT_IN signal is activated when an appropriate power supply unit is plugged to the 6-pole Western jack. While the PD_IN pin (pin3) is not active (voltage <2V) you can start the MC35i Terminal by activating the RS-232 DTR line. 3.5.1.
MC35i Terminal Hardware Interface Description Confidential / Released 3.5.1.4 s Disconnecting power supply Before disconnecting the power supply from the PLUS pin, make sure that the MC35i Terminal is in a safe condition. The best way is to wait 1s after the "^SHUTDOWN" result code has been indicated. 3.5.1.5 Automatic thermal shutdown An on-board NTC measures the temperature of the built-in MC35i module.
MC35i Terminal Hardware Interface Description Confidential / Released 3.5.2 s RS-232 interface Via RS-232 interface, the host controller controls the MC35i Terminal and transports data. 1 3 2 5 4 7 6 9 8 Figure 5: Pin assignment RS-232 (D-Sub 9-pole female) Table 11: 9-pole D-Sub (female) RS-232 Pin no.
s MC35i Terminal Hardware Interface Description Confidential / Released 3.5.3 Audio interface The audio interface provides an analog input for a microphone and an analog output for an earpiece. • The microphone input and the earpiece output are balanced. • For electret microphones a supply source is implemented. • The microphone supply characteristics are optimized for the recommended Votronic handset. This handset has been used as the reference handset for type approval (see chapters 6 and 7).
s MC35i Terminal Hardware Interface Description Confidential / Released 3.5.3.1 Supported audio modes The audio interface can be configured by AT commands. Refer to [1] for details. The electrical characteristics of the voiceband part vary with the audio mode. Specifications are listed in Table 24. To suit several types of audio equipment, three audio modes given by default can be selected by the AT command AT^SNFS.
MC35i Terminal Hardware Interface Description Confidential / Released 3.5.3.2 s Speech processing The voiceband filter includes a digital interpolation low-pass filter for received voiceband signals with digital noise shaping and a digital decimation low-pass filter for voiceband signals to be transmitted. After voiceband (interpolation) filtering the resulting 2Mbit/s data stream is digital-to-analog converted and amplified by a programmable gain stage in the voiceband processing part.
s MC35i Terminal Hardware Interface Description Confidential / Released 3.5.4 Radio interface An internal antenna cable adapts the antenna reference point (antenna connector type GSC from Murata) to the FME (male) connector. The position of the antenna reference point can be seen in Figure 1. • • • • Cable loss of the internal cable <0.4dB @ 900MHz <0.6dB @ 1800MHz The system impedance is 50Ω.
s MC35i Terminal Hardware Interface Description Confidential / Released 3.5.5 SIM interface The SIM interface is intended for 3V SIM cards in accordance with GSM 11.12 Phase 2. The card holder is a five wire interface according to GSM 11.11. A sixth pin has been added to detect whether or not a SIM card is inserted. 2. 1. All signals of the SIM interface are protected from electrostatic discharge with spark gaps to GND and clamp diodes to 2.9V and GND.
MC35i Terminal Hardware Interface Description Confidential / Released 3.5.6 s Status LED A green LED displays the operating status of the terminal: The LED is driven by the SYNC line of the integrated MC35i module which can be configured by using the AT^SSYNC command. For the purpose of the MC35i Terminal it is recommended to retain the default setting of AT^SSYNC=1 (AT^SSYNC=0 switches the LED off).
s MC35i Terminal Hardware Interface Description Confidential / Released 4 Mechanical characteristics and mounting advice Table 14: Mechanical characteristics Weight 130 g Dimensions (max) LxWxH = 65x74x33mm Temperature range -20°C to +55 °C Protection class IP40 (Avoid exposing MC35i Terminal to liquid or moisture, for example do not use it in a shower or bath.) Mechanical vibrations Amplitude 7.5 mm at 5-200 Hz sinus Max. pulse acceleration 30g pulse with 18 ms duration time Air humidity 5..
MC35i Terminal Hardware Interface Description Confidential / Released 4.1 s Mounting example The MC35i Terminal can be attached e.g. to a 35mm top-hat rail installation using two M3 x 50mm screws and an additional fixture element, see Figure 12. In case you wish to order the recommended mounting kit, please refer to Chapter 7 for detailed information. Figure 11: Recommended screws MC35i_T_HD_v02.00a Figure 12: Attaching MC35i Terminal to a top-hat rail Page 31 of 42 16.02.
s MC35i Terminal Hardware Interface Description Confidential / Released 5 Electrical and environmental characteristics Table 15: Absolute maximum ratings Parameter Port / Description Min. Max. Unit Supply voltage PLUS -50 30 V Overvoltage PLUS / for 1min 33 V Input voltage for on/off Control lines /IGT_IN, /PD_IN -5 30 V -20 +20 V /RXD, /CTS, /DSR, /DCD, /RING -0.3 +5.3 V Microphone input line voltage MICP, MICN -0.3 +10 V Earpiece input voltage EPP, EPN -0.3 +3.
s MC35i Terminal Hardware Interface Description Confidential / Released Table 17: On-board operating temperature of built-in MC35i module Parameter Min Typ Max Unit Normal operation -20 +25 +70 °C -25 --- >+80 °C Automatic thermal shutdown 1)2) Table 18: Ambient operating temperature of MC35i Terminal according to IEC 60068-2 (without forced air circulation) Parameter Min Typ Max Unit Normal operation -20 +25 +55 °C -25 to -20 --- +55 to +60 °C -25 --- ≥+60 Restricted opera
s MC35i Terminal Hardware Interface Description Confidential / Released Table 19: Storage conditions Type Air temperature: Humidity relative: Air pressure: Condition Unit Reference Low -30 °C ETS 300 019-2-1: T1.2, IEC 68-2-1 Ab High +70 Low 10 High 90 at 30°C ETS 300 019-2-1: T1.2, IEC 68-2-56 Cb Condens. 90-100 at 30°C ETS 300 019-2-1: T1.2, IEC 68-2-30 Db Low 70 High 106 ETS 300 019-2-1: T1.
s MC35i Terminal Hardware Interface Description Confidential / Released Table 20: Power supply specifications Parameter Description Conditions VPLUS Allowed voltage ripple (peak-peak), drop during transmit burst peak current TALK mode, power control 1) level for Pout max Average supply current (average time 3 min.) Power Down mode IPLUS 2) SLEEP mode (GSM/GPRS) Net searching mode (no net) IDLE mode (GSM/GPRS) Min.
s MC35i Terminal Hardware Interface Description Confidential / Released Table 21: On/Off control line specifications (requirements) Parameter Description Conditions Min. Vhigh Input voltage /IGT_IN, /PD_IN active high 5 Input voltage /DTR active high Vlow Vhigh Vlow Typ Max. Unit V 2 V 3 +15 V -15 1.2 V RIN Input resistance of /IGT_IN, /PD_IN 47 kOhm RIN Input resistance of /DTR 4 tD_IGT Duration of active high /IGT_IN, /DTR 200 ms tD_PD Duration of active high /PD_IN 3.
s MC35i Terminal Hardware Interface Description Confidential / Released Table 23: Audio interface specifications (requirements) Parameter Microphone MICP, MICN DC (no load) at MICP Min. Typ. Max. Unit 5.6 5.9 6.2 V DC at MICP in POWER DOWN 0 V DC (no load) at MICN 0 V DC resistance differential MICN, MICP (balanced) 9.3 9.4 9.5 kOhm Impedance Zi (balanced) 1.4 1.5 1.7 kOhm 1.
s MC35i Terminal Hardware Interface Description Confidential / Released The electrical characteristics of the voiceband part depend on the current audio mode selected by the AT command AT^SNFS. See Table 12: Audio modes. The audio modes 4 and 5 can be adjusted by parameters. Each audio mode is assigned a separate parameter set.
s MC35i Terminal Hardware Interface Description Confidential / Released Table 25: Air interface Parameter Min Typ Max Unit Frequency range Uplink (MS → BTS) E-GSM 900 880 915 MHz GSM 1800 1710 1785 MHz Frequency range Downlink (BTS → MS) E-GSM 900 925 960 MHz GSM 1800 1805 1880 MHz RF power @ ARP at 50Ω load E-GSM 900 30.5 33 35 dBm GSM 1800 27.
s MC35i Terminal Hardware Interface Description Confidential / Released 6 Full type approval The Siemens reference setup submitted to type approve MC35i Terminal consists of the following components: • • • • MC35i Terminal with approved GSM Engine MC35i Votronic Handset type PC as MMI Power Supply: Mains adapter Sphere Design Type FW75550/12 RS-232 PC MC35i Terminal ARP Antenna or 50 Ohm cable to the system simulator SIM Power supply Handset Figure 13: Reference equipment for approval For orde
MC35i Terminal Hardware Interface Description Confidential / Released 6.2 s CE Conformity The MC35i Terminal meets the requirements of the EU directives listed below. • • • R&TTE Directive 1999/5/EG LVD 73/23/EEC EMC conformity in accordance with Directive 89/336/EEC 6.3 EMC The MC35i Terminal meets the EN 301489-7 requirements of equipment for vehicular and fixed use and the 2004/104/EC Directive.
MC35i Terminal Hardware Interface Description Confidential / Released 7 s List of parts and recommended accessories Description Supplier Ordering information MC35i Terminal Siemens Siemens ordering number L36880-N8665-A100 Mounting kit for top/hat rail installation Sphere Design Ordering number: 20100 Sphere Design Saarpfalz-Park 17 D-66450 Bexbach / Saar Phone: +49-6826-5200-0 Fax: +49-6826-5200-25 E-Mail: info@spheredesign.de http://www.spheredesign.
