M Terminals BGS2 & M55i datasheet rev1.1 M Terminal Copyright Transmittal, reproduction, dissemination and/or editing of this document as well as utilization of its contents and communication thereof to others without express authorization are prohibited. Offenders will be held liable for payment of damages. All rights created by patent grant or registration of a utility model or design patent are reserved. Copyright © 2012, HCP d.o.o Trademark notice Cinterion is registered trademark of ©Cinterion Wireless Modules GmbH in the Germany and/or other countries. All other registered trademarks or trademarks mentioned in this document are property of their respective owners. Page 2 of 31 M Terminal Contents Document history_________________________________________________________________ 4 1. Introduction __________________________________________________________________ 4 1.1 Related documents _________________________________________________________________ 4 1.2 Terms and Abbreviations____________________________________________________________ 5 1.3 Safety Precautions__________________________________________________________________ 7 2. Product Concept _______________________________________________________________ 8 2.1 Key Features of M55i Terminal _______________________________________________________ 8 2.2 Key Features of M BGS2 Terminal _____________________________________________ 10 3. Interface Description _________________________________________________________ 12 3.1 Overview __________________________________________________________________________ 12 3.2 Block Diagram_____________________________________________________________________ 13 3.3 Operating Modes M Terminals ______________________________________________________ 14 3.5 Power Supply _____________________________________________________________________ 15 3.5.1 Turn M Terminal on ______________________________________________________________ 16 3.5.2 Reset M Terminal ________________________________________________________________ 16 3.5.3 Turn off M Terminal ______________________________________________________________ 16 3.5.4 Disconnecting power supply _______________________________________________________________ 17 3.5.5 Automatic thermal shutdown ______________________________________________________________ 17 3.6 RS-232 Interface __________________________________________________________________ 18 3.7 Audio interface ___________________________________________________________________ 19 3.7 SIM interface______________________________________________________________________ 20 3.8 Status LED _______________________________________________________________________ 21 3.9 Antenna interface _________________________________________________________________ 22 4. Electrical and Environmental Characteristics __________________________________ 23 4.1 Apsolute Maximum Ratings ________________________________________________________ 23 4.2 Recommended Operating conditions ________________________________________________ 23 4.3 Storage Conditions ________________________________________________________________ 24 4.4 Electrical Specifications of the Application Interface _________________________________ 25 4.4.1 Power Supply Ratings ____________________________________________________________________ 25 4.4.2 On/Off Control ___________________________________________________________________________ 26 4.4.3 RS232 interface _________________________________________________________________________ 26 4.4.4 Audio interface __________________________________________________________________________ 27 4.4.5 Antenna interface ________________________________________________________________________ 28 5. Mechanical Characteristics ___________________________________________________ 29 6. List of Parts and Accessories _________________________________________________ 30 Page 3 of 31 M Terminal Document history Preceding document: "M Terminals BGS2 & M55i" rev01.0” New document: " M Terminals BGS2 & M55i" rev01.1" Chapter --- What is new Added new pictures, electrical and mechanical characteristics 1. Introduction This document describes the hardware of HCP M Terminals BGS2 & M55i, with interface specifications, electrical and mechanical characteristics. M Terminals, both BGS2 and M55i, are intended to use in variety of M2M applications, such as POS systems, parking meters, energy meters, vending machines etc. 1.1 Related documents [1] MC55i AT command set [2] BGS2 AT command set [3] MC55i Hardware interface description [4] BGS2 Hardware interface description Page 4 of 31 M Terminal 1.2 Terms and Abbreviations Abbreviation ADC ARP ASIC ATC BTS CB CODEC CPU DCE DSP DSR DTR EFR EGSM EMC ESD ETS FDMA FR G.C.F. GSM HF HR HW IC IF IMEI I/O IGT ISO ITU kbps Li-Ion LVD Mbps MMI MO MS MT NC NTC PA PCB PCM PCS Description Analog-to-Digital Converter Antenna Reference Point Application Specific Integrated Circuit AT Cellular Base Transceiver Station Cell Broadcast Coder-Decoder Central Processing Unit Data Circuit terminating Equipment Digital Signal Processor Data Set Ready Data Terminal Ready Enhanced Full Rate Enhanced GSM Electromagnetic Compatibility Electrostatic Discharge European Telecommunication Standard Frequency Division Multiple Access Full rate GSM Conformity Forum Global Standard for Mobile Communication Hands-free Half rate Hardware Integrated Circuit Intermediate Frequency International Mobile Equipment Identifier Input/ Output Ignition International Standards Organization International Telecommunications Union kbits per second Lithium-Ion Low voltage Directive Mbits per second Machine Machine Interface Mobile Originated Mobile Station Mobile Terminated Not Connected Negative Temperature Coefficient Power Amplifier Printed Circuit Board Pulse Code Modulation Personal Communication System Page 5 of 31 M Terminal Abbreviation Description PDU R&TTE RAM RF RI ROM RX SIM SMS SRAM SW TDD TDMA TX UART VAD ZIF Protocol Data Unit Radio and Telecommunication Terminal Equipment Random Access Memory Radio frequency Ring Indication Read Only Memory Receive direction Subscriber Identification Module Short Message Service Static Random Access Memory Software Time Division Duplex Time Division Multiple Access Transmit direction Universal Asynchronous Receiver and Transmitter Voice Activity Detection Zero Insertion Force Table 1. Terms and Abbreviations Page 6 of 31 M Terminal 1.3 Safety Precautions Safety precautions must be observed during all phases of the operation, usage, service or repair of any cellular terminal from HCP d.o.o. Failure to comply with these precautions violates safety standards of design, manufacture and intended use of the product. HCP d.o.o assumes no liability for customer’s failure to comply with these precautions. When in hospitals or other health care facilities, observe the restrictions on the use of mobiles. Switch off the cellular terminal or mobile if to be instructed to do so by the guidelines posted in sensitive areas. Medical equipment may be sensitive to RF energy. The operation of cardiac pacemakers, other implanted medical equipment and hearing aids can be affected by interference from cellular terminals or mobiles placed close to the device. If in doubt about potential danger, contact the physician or the manufacturer of the device to verify that the equipment is properly shielded. Pacemaker patients are advised to keep their hand-held mobile away from the pacemaker, while it is on. This personal subgroup always should check the distance to the mobile Switch off the cellular terminal or mobile before boarding an aircraft. Make sure it cannot be switched on inadvertently. The operation of wireless appliances in an aircraft is forbidden to prevent interference with communications systems. Failure to observe these instructions may lead to the suspension or denial of cellular services to the offender, legal action, or both. Check the local and actual laws about these themes. Do not operate the cellular terminal or mobile in the presence of flammable gases or fumes. Switch off the cellular terminal when you are near petrol stations, fuel depots, chemical plants or where blasting operations are in progress. Operation of any electrical equipment in potentially explosive atmospheres can constitute a safety hazard. Your cellular terminal or mobile receives and transmits radio frequency energy while switched on. Remember that interference can occur if it is used close to TV sets,radios, computers or inadequately shielded equipment. Follow any special regulations and always switch off the cellular terminal or mobile wherever forbidden, or when you suspect that it may cause interference or danger. Road safety comes first! Do not use a hand-held cellular terminal or mobile while driving a vehicle unless it is securely mounted in a holder for speakerphone operation. Before making a call with a hand-held terminal or mobile park the vehicle. Speakerphones must be installed by qualified personnel. Faulty installation or operation can constitute a safety hazard. Check the actual and local laws about these themes. IMPORTANT! Cellular terminals or mobiles operate using radio signals and cellular networks. In that case connections cannot be guaranteed at all times under all conditions. Therefore, you should never rely solely upon any wireless device for essential communications, for example emergency calls. Remember, in order to make calls or receive calls the cellular terminal or mobile must be switched on in a service area with adequate cellular signal strength. Some networks do not allow for emergency calls if certain network services or phone features are in use (e.g. lock functions, fixed dialing etc.). You may need to deactivate those features before you can make an emergency call. Some networks require a valid SIM card to be properly inserted in the cellular terminal or mobile. If a power supply unit is used to supply the device it must meet the demands placed on SELV circuits in accordance with EN60950. The maximum permissible connection length between the device and the supply source should not exceed 3m. According to the guidelines for human exposure to radio frequency energy, an antenna connected to the FME jack of the device should be placed at least 20cm away from human bodies. Page 7 of 31 M Terminal 2. Product Concept 2.1 Key Features of M55i Terminal Feature General Incorporates Cinterion MC55i module Frequency bands GSM class Output power (according to Release 99, V5) Power supply Ambient operating temperature according to IEC 60068-2 Physical Housing color RoHS GSM/GPRS features Data transfer SMS Fax Implementation The MC55i module handles all processing for audio,signal and data within the M55i Terminal. Quad band: GSM 850/900/1800/1900MHz Small MS Class 4 (+33dBm ±2dB) for EGSM850 Class 4 (+33dBm ±2dB) for EGSM900 Class 1 (+30dBm ±2dB) for GSM1800 Class 1 (+30dBm ±2dB) for GSM1900 Single supply voltage 8V to 30V DC Normal operation: -20°C to +55°C Restricted operation: -40°C to -20°C, +55°C to +70°C Dimensions: 64mm x 74mm x 33mm Weight: approx. 110g(approx.) Gray All hardware components fully compliant with EU RoHS Directive GPRS: - Multislot Class 12 - Full PBCCH support - Mobile Station Class B - Coding Scheme 1 – 4 CSD: - V.110, RLP, non-transparent - 2.4, 4.8, 9.6, 14.4kbps - USSD PPP-stack for GPRS data transfer - Point-to-point MT and MO - Cell broadcast - Text and PDU mode - Storage: SIM card plus 25 SMS locations in mobile equipment - Transmission of SMS alternatively over CSD or GPRS. Preferred mode can be user defined. Group 3; Class 2 and Class 1 Page 8 of 31 M Terminal Feature Audio TCP/IP Watchdog Software AT commands Firmware update Interfaces Serial interface Audio SIM interface Antenna Power on/off, Reset Power on Power off Reset Phonebook Implementation Speech codecs: - Half rate HR (ETS 06.20) - Full rate FR (ETS 06.10) - Enhanced full rate (ETS 06.50/06.60/06.80) - Adaptive Multi Rate AMR Echo cancellation, DTMF, 7 different ringing tones Over AT commands Integrated watchdog timer that resets terminal every 8 to 10 hours Hayes 3GPP TS 27.007, TS 27.005, Cinterion Upgradeable via serial interface. RS-232 interface, bi-directional bus for AT commands and data. - Multiplex ability according to GSM 07.10 Multiplexer protocol - Fixed bit rates: 1,200bps to 230,400bps - Autobauding: 1,200bps to 230,400bps - Supports RTS/CTS hardware handshake and software XON/XOFFflow control Analog (Microphone, Earpiece) Supported SIM cards: 3V, 1.8V Connected via antenna FME connector • Automatic switch on when power supply is attached • DTR line at RS232 interface or IGNITION line at power connector • Normal switch-off by AT^SMSO command • Emergency switch-off via EMERGENCY_OFF line at power connector • Automatic switch-off in case of critical temperature and voltage conditions Orderly shutdown and reset by AT command or DTR line at RS232 interface Orderly reset by AT command or DTR line at RS232 interface or reset by integrated Watchdog timer on board. SIM card and terminal Table 2. Key feature of M55i Terminal Page 9 of 31 M Terminal 2.2 Key Features of M BGS2 Terminal Feature General Incorporates Cinterion BGS2 module Frequency bands GSM class Output power (according to Release 99, V5) Power supply Ambient operating temperature according to IEC 60068-2 Physical Housing color RoHS GSM/GPRS features Data transfer SMS Fax Implementation The BGS2 module handles all processing for audio,signal and data within the M BGS2 Terminal. Internal software runs the application interface and the complete GSM/GPRS protocol stack. Dual band (BGS2-E): GSM 900/1800MHz Quad band (BGS2-W): GSM 850/900/1800/1900MHz Small MS Class 4 (+33dBm ±2dB) for EGSM850 (quad band only) Class 4 (+33dBm ±2dB) for EGSM900 Class 1 (+30dBm ±2dB) for GSM1800 Class 1 (+30dBm ±2dB) for GSM1900 (quad band only) Single supply voltage 8V to 30V DC Normal operation: -20°C to +55°C Restricted operation: -40°C to -20°C, +55°C to +70°C Dimensions: 64mm x 74mm x 33mm Weight: approx. 110g(approx.) Blue All hardware components fully compliant with EU RoHS Directive. GPRS: - Multislot Class 12 - Full PBCCH support - Mobile Station Class B - Coding Scheme 1 – 4 CSD: - V.110, RLP, non-transparent - 2.4, 4.8, 9.6, 14.4kbps - USSD PPP-stack for GPRS data transfer - Point-to-point MT and MO - Cell broadcast - Text and PDU mode - Storage: SIM card plus 25 SMS locations in mobile equipment - Transmission of SMS alternatively over CSD or GPRS. Preferred mode can be user defined. Group 3; Class 1 & 2 Page 10 of 31 M Terminal Feature Audio TCP/IP stack Watchdog Software AT commands Firmware update Interfaces Serial interface Audio SIM interface Antenna Power on/off, Reset Power on Power off Reset Phonebook Implementation Speech codecs: - Half rate HR (ETS 06.20) - Full rate FR (ETS 06.10) - Enhanced full rate (ETS 06.50/06.60/06.80) - Adaptive Multi Rate AMR Echo cancellation, DTMF, 7 different ringing tones Protocols: TCP server/client, UDP, HTTP, FTP, SMTP, POP3 Access by AT commands Integrated watchdog timer that resets terminal every 8 to 10 hours Hayes 3GPP TS 27.007, TS 27.005, Cinterion AT commands for RIL compatibility Upgradeable via serial interface. RS-232 interface, bi-directional bus for AT commands and data. - Multiplex ability according to GSM 07.10 Multiplexer protocol - Adjustable baud rates: 1,200bps to 230,400bps - Autobauding: 1,200bps to 230,400bps - Supports RTS/CTS hardware handshake and software XON/XOFFflow control Analog (Microphone, Earpiece) Supported SIM cards: 3V, 1.8V Connected via antenna FME connector • Automatic switch on when power supply is attached • DTR line at RS232 interface or IGNITION line at power connector • Normal switch-off by AT^SMSO command • Automatic switch-off in case of critical temperature and voltage conditions Orderly reset by AT command or DTR line at RS232 interface or reset by integrated Watchdog timer on board. SIM card and terminal Table 3. Key feature of BGS2 Terminal Page 11 of 31 M Terminal 3. Interface Description 3.1 Overview M Terminal provides the following connectors for power supply, communication and audio interface and antenna. - 6-pole RJ11 (female) for power supply, ignition, power down signal 4-pole RJ11 (female) for audio accessory, such as a handset 9-pole (female) SUB-D plug for RS-232 serial interface FME Jack (male) for antenna (Antenna interface) SIM card holder Status LED Figure 1. Front and rear view of M Terminal Page 12 of 31 M Terminal 3.2 Block Diagram On Figure 2. shows block diagram of M terminal. Figure 2. Block diagram of M terminal Page 13 of 31 M Terminal 3.3 Operating Modes M Terminals The table below briefly summarizes the various operating modes referred to in the following sections. Mode Normal operation POWER DOWN Function GSM/GPRS SLEEP Various powersave modes set with AT+CFUN command. Software is active to minimum extent. If the module was registered to the GSM network in IDLE mode, it is registered and paging with the BTS in SLEEP mode, too. Power saving can be chosen at different levels: The NON-CYCLIC SLEEP mode (AT+CFUN=0) disables the AT interface. The CYCLIC SLEEP modes AT+CFUN=5, 6, 7, 8 and 9 (AT+CFUN=7 and 9 for BGS2) alternatingly activate and deactivate the AT interfaces to allow permanent access to all AT commands. GSM IDLE Software is active. Once registered to the GSM network, paging with BTS is carried out. The module is ready to send and receive. GSM TALK 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. GPRS IDLE Module is ready for GPRS data transfer, but no data is currently sent or received. Power consumption depends on net-work settings and GPRS configuration (e.g. multislot settings). GPRS GPRS data transfer in progress. Power consumption DATA depends on network settings (e.g. power control level), uplink / down-link data rates and GPRS configuration (e.g. used multislot settings). Normal shutdown after sending the AT^SMSO command or after activation of the Power_down line (for M55i terminal) Table 4. Operating modes of M Terminals Page 14 of 31 M Terminal 3.5 Power Supply The power supply of the M Terminals has to be a single voltage source of 8V to 30V capable of providing a peak current (pulsed 2x577ms 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. The MC55i Terminal is protected from supply voltage reversal. Figure 3. Power supply connector Pin 1 2 3 Singal name Vcc NC Emergency_off Use Positive power supply -Signal for emergency off 4 Ignition Ignition 5 6 NC GND -Ground Parameters 8V – 30V DC -UIH>5V for minimum 200ms turns off M55i Terminal(Resets BGS2 Terminal) UIH>5V for minimum 200ms switches terminal on -0V Table 5. Power supply connector pins Pins on 6-pin RJ11 power supply connector 3. Emergency_off and 4. Ignition pin are additio- nal pins for ignition and emergency off of M terminal, you don’t have to use them because M terminal has integrated circuits for ignition when the power supply is attached. Also M terminal can be restarted by DTR line on RS232 interace. Page 15 of 31 M Terminal 3.5.1 Turn M Terminal on M terminal switches on automaticly when power supply is attached. After start-up, the MC55i Terminal enters the net searching state. Also, if M terminal is switched off over AT command AT^SMSO, you can turn it on by activating the DTR line on RS232 interface. After startup of the M Terminal the RS232 lines are in an undefined state for approx. 900ms. This may cause undefined characters to be transmitted over the RS232 lines during this period. 3.5.2 Reset M Terminal One way to reset M Terminal is entering AT command AT+CFUN=x,1. For details on AT+CFUN please see [1], [2]. Other ways for restarting M terminal is: - activating the DTR line on RS232 interface automatically by integrated watchdog timer on every 8 to 10 hours. 3.5.3 Turn off M Terminal Normal shutdown: - To turn off the MC55i Terminal use the AT^SMSO command, rather than disconnecting the power supply adapter. This procedure lets the M Terminal log off from the network and allows the software to enter a secure state and save data before disconnecting the power supply. After AT^SMSO has been entered the M Terminal returns the following result codes: ^SMSO: MS OFF OK ^SHUTDOWN The "^SHUTDOWN" result code indicates that the M Terminal turns off in less than 1 second. After the shutdown procedure is complete the M Terminal enters the POWER DOWN mode. The status LED stops flashing (see Section 3.9 for a detailed LED description). Emergency shutdown (reset) - In the event of software hang-ups etc. the M Terminal can be switched off by applying a voltage >5V to the Emergency_off pin (pin 3) for more than 200ms. Page 16 of 31 M Terminal The Emergency_off signal switches the M Terminal off (M55i Terminal switches off, BGS2 terminal resets). All internal supply voltages are off, except for the power down voltage. When the MC55i Terminal enters the POWER DOWN mode, e.g. after you have issued the AT^SMSO command or activated the Emergency_off signal, all RS-232 interface lines are active for a period of 50ms to max. 3.5s. This may cause undefined characters to be transmitted on the RS-232 lines which can be ignored. Caution: Use the Emergency_off pin only when, due to serious problems, the software is not responding for more than 5 seconds. Pulling the Emergency_off pin causes the loss of all information stored in the volatile memory since power is cut off immediately. Therefore, this procedure is intended only for use in case of emergency, e.g. if M Terminal fails to shut down properly. 3.5.4 Disconnecting power supply Before disconnecting the power supply from the Vcc pin, make sure that the M Terminal is in a safe condition. The best way is to wait 1s after the "^SHUTDOWN" result code has been indicated. 3.5.5 Automatic thermal shutdown On-board NTC measures the temperature of the built-in M Terminal. If over- or under temperature is detected on the module the M Terminal automatically shuts down to avoid thermal damage to the system. Table 15 specifies the ambient temperature threshold for the M Terminal. The automatic shutdown procedure is equivalent to the power-down initiated with the AT^SM-SO command, i.e. M Terminal logs off from the network and the software enters a secure state avoiding loss of data. In IDLE mode it takes typically one minute to deregister from the network and to switch off. Alert messages transmitted before the M Terminal switches off are implemented as Unso-licited Result codes (URCs). For details see the description of AT^SCTM command provided in [1] and [2]. Thermal shutdown will be deferred if a critical temperature limit is exceeded, while an emergency call or a call to a predefined phone number is in progress, or during a two minute guard period after power up. See [1] for details. Page 17 of 31 M Terminal 3.6 RS-232 Interface Over RS232 interface, external device, PC or other control device with RS232 interface, controls M Terminal. Figure 4. M terminal RS232 pin assignment (D-Sub9 female) Pin Singal name Input/Output Function 1 DCD output Data Carrier Detect 2 RxD output Receive Data 3 TxD input Transmit Data Data Terminal Ready 4 DTR input 5 6 7 8 9 GND DSR RTS CTS RING -output input output output The ignition of M Terminal is activated via a rising edge of high potential (+3 ... +15 V) Ground Data Set Ready Request To Send Clear To Send Ring Indication Table 6. RS232 pin assigment The RS-232 interface is implemented as a serial asynchronous transmitter and receiver conforming to ITU-T V.24 Interchange Circuits DCE. It is configured for 8 data bits, no parity and 1 stop bit, and can be operated at bit rates from 300bps to 230400kbps. Autobauding supports bit rates from 1200bps to 230400bps. Hardware handshake using the /RTS and /CTS signals and XON/XOFF software flow control are supported. In addition, the modem control signals DTR, DSR, DCD and RING are available. The modem control signal RING (Ring Indication) can be used to indicate, to the cellular device Page 18 of 31 M Terminal application, that a call or Unsolicited Result Code (URC) is received. There are different modes of operation, which can be set with AT commands. 3.7 Audio interface Audio interface provides balanced analog microphone input and a balanced analog earpiece output. M Terminal offers six audio modes 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 altered with AT commands (except for mode 1). Figure 5. Audio interface connector Pin 1 2 3 4 Function MICP – Microphone + EPP – Earpiece EPN – Earpiece MICN – Microphone - Table 7. Audio interface pin assignment Please refer to [3] [4] for specifications of the audio interface and an overview of the audio parameters. Detailed instructions on using AT commands are presented in [1] and [2]. Page 19 of 31 M Terminal 3.7 SIM interface M Terminal provides SIM interface with automatic detection for 1.8V and 3V SIM cards in acc- ordance with GSM11.12 Phase 2. The card holder is a six wire interface according to GSM 11.11 with detection whether or not a SIM card is inserted. Figure 6. SIM interface Removing and inserting the SIM card during operation requires the software to be reinitialized. Therefore, after reinserting the SIM card it is necessary to restart M Terminal. Note: No guarantee can be given, nor any liability accepted, if loss of data is encountered afterremoving the SIM card during operation. Also, no guarantee can be given for properly initializing any SIM card that the user inserts after having removed a SIM card during operation. In this case, the application must restart the M Terminal. Page 20 of 31 M Terminal 3.8 Status LED Red status LED displays the operating status of the M Terminal. Figure 7. Red status LED flashing on M Terminal The LED is driven by the SYNC line of the integrated MC55i module and GPIO5 pin on integrated BGS2 module which can be configured by using the AT^SSYNC command. For the purpose of the M Terminal it is recommended to retain the default setting of AT^SSYNC=1 (AT^SSYNC=0 is not applicable). The following table lists the possible LED patterns and describes the operating status of the M Terminal indicated by each pattern if AT^SSYNC=1. During the transition from one LED pattern to another the "on" and/or "off" periods of the LED may vary in length. This is because an event that triggers the change may occur any time and, thus, truncate the current LED pattern at any point. LED mode Permanently off 600 ms on / 600 ms off 75 ms on / 3 s off 75 ms on / 75 ms off / 75 ms on / 3 s off 500 ms on / 25 ms off Permanently on Operating status of M Terminal M Terminal is in one of the following modes: - POWER DOWN mode - ALARM mode - NON-CYCLIC SLEEP mode - CYCLIC SLEEP mode with no temporary wake-up event1 in progress. Limited Network Service: No SIM card inserted or no PIN entered, or network search in progress, or ongoing user authentication, or network login in progress. IDLE mode: The mobile is logged to the network (monitoring control channels and user interactions). No call in progress. One or more GPRS contexts activated. Packet switched data transfer in progress. Depending on type of call: Voice call: Connected to remote party. CSD call: Connected to remote party or exchange of parameters while setting up or disconnecting a call. Table 8. Status LED operating status Page 21 of 31 M Terminal 3.9 Antenna interface The external antenna is connected via the M Terminal FME jack (male), look at figure 8. Figure 8. Antenna interface – FME jack An internal antenna cable adapts the antenna reference point (antenna connector type U.FLR-SMT from Hirose) to the FME (male) connector. - - - Cable loss of the internal cable <0.4dB @ 900MHz <0.6dB @ 1800MHz The system impedance is 50Ω In every case, for good RF performance the return loss of the customer application’s antenna should be better than 10dB (VSWR < 2). M Terminal withstands a total mismatch at this connector when transmitting with power control level for maximum RF power. Page 22 of 31 M Terminal 4. Electrical and Environmental Characteristics 4.1 Apsolute Maximum Ratings Parameter Supply voltage Input voltage for on/off contro lines RS232 input voltage range Microphone input voltage Earpiece input voltage Immunity against ESD Protection Class Pin / Parameter Vcc Ignition, Emergency_off TxD, DTR, RTS RxD, CTS, DSR, DCD, RING MICP, MICN EPP, EPN RS232 LINES IP40(avoid exposing M Terminal to liquid or moisture) Min. 8 Max. 30 Unit V 3 6 V -20 -0.3 -10 -0.3 -15 +20 +5.3 +10 +0.3 +15 V V V V kV IP40 Table 9. Apsolute maximum ratings 4.2 Recommended Operating conditions Parameter Supply voltage Operating temperature Pin / Parameter Vcc M55i Terminal BGS2 Terminal Min. Typ. Max. Unit 12 V -20 +25 +70 °C -30 +25 +85 °C Table 10. Recommended operating conditions Page 23 of 31 M Terminal 4.3 Storage Conditions Type Air temperature: Condition Unit -30 °C +75 10 90 at 30°C 90-100 at % 30°C Air pressure: 70 106 1.0 Not allowed 1120 600 Not recomm. Not recomm. Low High Humidity relative: Low High Condens. Low High Movement of surrounding air Water: rain, dripping, icing and frosting Radiation: Solar Heat Chemically active substances Mechanically active substances kPa m/s Reference ETS 300 019-2-1: T1.2, IEC 60068-2-1 Ab ETS 300 019-2-1: T1.2, IEC 60068-2-2 Bb --ETS 300 019-2-1: T1.2, IEC 60068-2-56 Cb ETS 300 019-2-1: T1.2, IEC 60068-2-30 Db IEC TR 60271-3-1: 1K4 IEC TR 60271-3-1: 1K4 IEC TR 60271-3-1: 1K4 --- --- W/m² ETS 300 019-2-1: T1.2, IEC 60068-2-2 Bb ETS 300 019-2-1: T1.2, IEC 60068-2-2 Bb EC TR 60271-3-1: 1C1L IEC TR 60271-3-1: 1S1 Table 11. Storage conditions The conditions stated above are only valid for devices in their original packed state in weather protected, non-temperature-controlled storage locations. Normal storage time under these conditions is 12 months maximum. Page 24 of 31 M Terminal 4.4 Electrical Specifications of the Application Interface 4.4.1 Power Supply Ratings Param. Description Conditions Vcc Allowed votage ripple (peak to peak), drop during transmit Average supply current (average time 3 min.) TALK mode Icc tPLUS tR_PLUS Peak supply current (during 577µs transmission slot every 4.6ms) Allowed powerfail time without terminal reset or power down Allowed rise time of Vcc Power Down mode Min. Typ. Max. @8V @12V @30V @8V SLEEP mode @12V (GSM/GPRS) @30V @8V Net searching @12V mode(no net) @30V @8V IDLE mode @12V (GSM/GPRS) @30V @8V GSM TALK mode @12V @30V @8V GPRS DATA @12V mode(1 Tx, 4 Rx) @30V @8V GPRS DATA @12V mode(2 Tx, 3 Rx) @30V @8V Power control level for Pout @12V max @30V After this time the M Terminal will be reset or switched off 0 to 100% 500 720 1800 50 35 19 75 53 34 71 50 32 280 180 75 290 185 80 380 190 80 1.6 1.2 0.75 Unit µA mA mA mA mA mA mA A 1 20 ms ms Table 12. Power supply ratings Page 25 of 31 M Terminal 4.4.2 On/Off Control Param. VHIGH VLOW VHIGH VLOW tD_IGT tD_EOff tR_IGT tR_RTS tD_off Description Conditions Input voltage -Ignition, -Emergency_off active high Input voltage active high DTR Duration of active high -Ignition, DTR Duration of active high -Emergency_off Rise time on –Ignition pin for 0 to 100% power up Rise time on DTR pin for 0 to 100% power up Passive state(low) of –Ignition after power down and DTR pin before restart Min. Typ. Max. 4 2 +15 1.2 4 -15 Unit V V V V 200 ms 50 ms 20 ms 20 ms 1s ms Table 13. On/off control 4.4.3 RS232 interface Param. VOUT ROUT RIN VIN VLOW VHIGH Description Conditions Transmitter output voltage for RxD, CTS, DSR, DCD, RING Transmitter output resistance RXD, CTS, DSR, DCD, RING Resistance TxD, RTS, DTR Receiver input voltage range TxD, RTS, DTR Input threshold low Input threshold high @3KΩ to GND Min. Typ. ±5 ±5.4 V 300 10M Ω 3 5 -25 Max. Unit 7 kΩ +25 V 0.8 V 2 Autobauding 1,200 Fixed range 1,200 Baudrate RS232 cable 1.8 230,4 00 230,4 00 2 bps bps m Table 14. RS232 interface Page 26 of 31 M Terminal 4.4.4 Audio interface Parameter Microphone DC (no load) at MICP MICP, MICN DC at MICP in POWER DOWN DC (no load) at MICN DC resistance differential MICN, MICP (balanced) Impedance Zi (balanced) Input level UiMAX Gain range 6dB steps Frequency range Earpiece Fine scaling by DSP (inCalibrate) EPP, EPN Impedance (audio not active) Impedance (balanced) AC output level UO Gain = 0dB @ 3.14 dBm0 no load audio mode = 5, outBbcGain = 0, outCalibrate = 32767 Gain range Gain accuracy Frequency area DC Offset (balanced) Attenuation distortion for 300...3900Hz Out-of-band discrimination Min. Typ. Max. Unit 5.6 5.9 6.2 V 0 V 0 V 9.3 9.4 9.5 4.8 1.03 42 3400 0 0 300 −∞ 3.3 -18 300 60 30 15.2 3.7 4.07 0 0.8 3400 100 1 kΩ kΩ VPP dB Hz dB kΩ kΩ VPP dB dB Hz mV dB dB Table 15. Audio interface For more information about audio interface refer to [3] and [4], for AT commands for controlling audio interface refer to [1] and [2]. Page 27 of 31 M Terminal 4.4.5 Antenna interface Parameter Frequency range Uplink (MS → BTS) Frequency range Downlink (BTS → MS) RF power @ ARP with 50Ω load GSM 850 E-GSM 900 GSM 1800 GSM 1900 GSM 850 E-GSM 900 GSM 1800 GSM 1900 GSM 850 E-GSM 900 GSM 1800 GSM 1900 Min. Typ. Max. Unit 824 849 MHz 880 915 MHz 1710 1785 MHz 1850 1910 MHz 869 894 MHz 925 960 MHz 1805 1880 MHz 1930 1990 MHz 31 33 35 dBm 31 33 35 dBm 28 30 32 dBm 28 30 32 dBm Table 16. Antena interface Please refer to [3] [4] for more information about antenna interface (air interface). Page 28 of 31 M Terminal 5. Mechanical Characteristics Figure 8. Mechanical characteristics Page 29 of 31 M Terminal 6. List of Parts and Accessories Description Supplier Picture M Terminal BGS2 HCP d.o.o M Terminal M55i HCP d.o.o Power supply (AC/DC 9V/2A) HCP d.o.o FME antenna HCP d.o.o RS232 cable (male – female) HCP d.o.o Handset --- Page 30 of 31 M Terminal HCP d.o.o. Mirka Tomica – pasaz 37000 Krusevac SERBIA Phn. +381.37.445.401 +381.37.418.790 Fax. +381.37.448.351 Website www.hcp.rs Sales email: [email protected] Support: [email protected] Development: [email protected] Page 31 of 31