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M95 User Manual GSM/GPRS Module Series Rev. M95_User_Manual_V3.1 Date: 2014-11-26 www.quectel.com GSM/GPRS Module Series M95 User Manual Our aim is to provide customers with timely and comprehensive service. For any assistance, please contact our company headquarters:
Quectel Wireless Solutions Co., Ltd. Office 501, Building 13, No.99, Tianzhou Road, Shanghai, China, 200233 Tel: +86 21 5108 6236 Mail: info@quectel.com Or our local office, for more information, please visit:
http://www.quectel.com/support/salesupport.aspx For technical support, to report documentation errors, please visit:
http://www.quectel.com/support/techsupport.aspx GENERAL NOTES QUECTEL OFFERS THIS INFORMATION AS A SERVICE TO ITS CUSTOMERS. THE INFORMATION PROVIDED IS BASED UPON CUSTOMERS REQUIREMENTS. QUECTEL MAKES EVERY EFFORT TO ENSURE THE QUALITY OF THE INFORMATION IT MAKES AVAILABLE. QUECTEL DOES NOT MAKE ANY WARRANTY AS TO THE INFORMATION CONTAINED HEREIN, AND DOES NOT ACCEPT ANY LIABILITY FOR ANY INJURY, LOSS OR DAMAGE OF ANY KIND INCURRED BY USE OF OR RELIANCE UPON THE INFORMATION. ALL INFORMATION SUPPLIED HEREIN IS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. COPYRIGHT THIS INFORMATION CONTAINED HERE IS PROPRIETARY TECHNICAL INFORMATION OF QUECTEL CO., LTD. TRANSMITTABLE, REPRODUCTION, DISSEMINATION AND EDITING OF THIS DOCUMENT AS WELL AS UTILIZATION OF THIS CONTENTS ARE FORBIDDEN WITHOUT PERMISSION. OFFENDERS WILL BE HELD LIABLE FOR PAYMENT OF DAMAGES. ALL RIGHTS ARE RESERVED IN THE EVENT OF A PATENT GRANT OR REGISTRATION OF A UTILITY MODEL OR DESIGN. Copyright Quectel Wireless Solutions Co., Ltd. 2015. All rights reserved. M95_User_Manual Confidential / Released 1 / 85 GSM/GPRS Module Series M95 User Manual About the Document History Revision Date Author Description 1.0 2011-12-29 Luka WU Initial 1.1 2012-05-18 Luka WU 1.2 2012-09-19 Luka WU 1.3 2013-09-03 Winter CHEN 1. Added current consumption in GPRS communication mode. 2. Modified AT command AT+QAUDCH in Chapter 3.10. 3. Modified the Footprint of recommendation. 4. Updated module package type. 1. Updated module functional diagram. 2. Updated Voltage ripple during transmitting. 3. Modified level match reference circuits for 5V peripheral system. 4. Updated SIM card reference circuit. 5. Added module current consumption. 1. Updated information on modules packaging. 2. Used the new technical document template. 1.4 2013-11-04 Felix YIN Optimized the parameters of VBAT ripple in Table 24. 3.0 2014-07-25 Winter CHEN 3.1 2014-11-26 Winter CHEN 1. Added information for SIM2 interface, DTR and DCD pin. 2. Added information for Multi UART. 3. Modified modules current consumption. 4. Modified modules pin definition. 5. Modified DC characteristics of module pin. 1. Added information for PCM interface. 2. Updated Figure 5: Reference Circuit for Power Supply. 3. Modified over-voltage or under-voltage automatic shutdown in Section 3.4.2 4. Modified RTC backup in Section 3.6 M95_User_Manual Confidential / Released 2 / 85 GSM/GPRS Module Series M95 User Manual 5. Modified UART application in Section 3.7.3 6. Modified SIM card interface in Section 3.10 7. Added antenna requirement in Section 4.5 M95_User_Manual Confidential / Released 3 / 85 GSM/GPRS Module Series M95 User Manual Contents About the Document ................................................................................................................................... 2 Contents ....................................................................................................................................................... 4 Table Index ................................................................................................................................................... 7 Figure Index ................................................................................................................................................. 8 1 Introduction ........................................................................................................................................ 10 Safety Information ................................................................................................................. 11 1.1. 2.1. 2.2. 2 Product Concept ................................................................................................................................ 12 General Description ............................................................................................................... 12 Directives and Standards ...................................................................................................... 12 FCC Radiation Exposure Statement .............................................................................. 12 Key Features ......................................................................................................................... 13 Functional Diagram ............................................................................................................... 15 Evaluation Board ................................................................................................................... 16 2.3. 2.4. 2.5. 2.2.1. 3.4. 3.1. 3.2. 3.3. 3 Application Interface ......................................................................................................................... 17 Pin of Module ......................................................................................................................... 18 3.1.1. Pin Assignment .............................................................................................................. 18 3.1.2. Pin Description ............................................................................................................... 19 Operating Modes ................................................................................................................... 23 Power Supply ........................................................................................................................ 25 3.3.1. Power Features of Module ............................................................................................. 25 3.3.2. Decrease Supply Voltage Drop ...................................................................................... 25 3.3.3. Reference Design for Power Supply .............................................................................. 26 3.3.4. Monitor Power Supply .................................................................................................... 27 Power On and Down Scenarios ............................................................................................ 27 3.4.1. Power On ....................................................................................................................... 27 3.4.2. Power Down ................................................................................................................... 29 Power Down Module Using the PWRKEY Pin .................................................. 29 Power Down Module Using AT Command ........................................................ 30 Over-voltage or Under-voltage Automatic Shutdown ........................................ 30 Emergency Shutdown Using EMERG_OFF Pin ............................................... 31 3.4.3. Restart ............................................................................................................................ 32 Power Saving ........................................................................................................................ 33 3.5.1. Minimum Functionality Mode ......................................................................................... 33 3.5.2. SLEEP Mode .................................................................................................................. 34 3.5.3. Wake Up Module from SLEEP Mode ............................................................................. 34 3.5.4. Summary of State Transition .......................................................................................... 35 RTC Backup .......................................................................................................................... 35 Serial Interfaces ..................................................................................................................... 37 3.4.2.1. 3.4.2.2. 3.4.2.3. 3.4.2.4. 3.6. 3.7. 3.5. M95_User_Manual Confidential / Released 4 / 85 GSM/GPRS Module Series M95 User Manual 3.8. 3.7.1.1. 3.7.1.2. 3.7.1.3. 3.7.1. UART Port ...................................................................................................................... 39 The Features of UART Port ............................................................................... 39 The Connection of UART .................................................................................. 40 Firmware Upgrade ............................................................................................. 42 3.7.2. Debug Port ..................................................................................................................... 42 3.7.3. UART Application ........................................................................................................... 43 Audio Interfaces ..................................................................................................................... 44 3.8.1. Decrease TDD Noise and Other Noise .......................................................................... 46 3.8.2. Microphone Interfaces Design ....................................................................................... 46 3.8.3. Receiver Interface Design .............................................................................................. 47 3.8.4. Earphone Interface Design ............................................................................................ 47 3.8.5. Loud Speaker Interface Design...................................................................................... 48 3.8.6. Audio Characteristics ..................................................................................................... 48 PCM Interface ........................................................................................................................ 49 3.9.1. Configuration .................................................................................................................. 50 3.9.2. Timing ............................................................................................................................. 50 3.9.3. Reference Design .......................................................................................................... 52 3.9.4. AT Command ................................................................................................................. 52 SIM Card Interfaces .............................................................................................................. 53 3.10.1. SIM Card Application ...................................................................................................... 53 Behaviors of The RI ............................................................................................................... 57 3.11. 3.12. Network Status Indication ...................................................................................................... 58 3.13. Operating Status Indication ................................................................................................... 59 3.10. 3.9. 4 Antenna Interface ............................................................................................................................... 61 RF Reference Design ............................................................................................................ 61 RF Output Power ................................................................................................................... 62 RF Receiving Sensitivity ........................................................................................................ 62 Operating Frequencies .......................................................................................................... 63 Antenna Requirement ........................................................................................................... 63 RF Cable Soldering ............................................................................................................... 64 4.1. 4.2. 4.3. 4.4. 4.5. 4.6. 5 Electrical, Reliability and Radio Characteristics ............................................................................ 65 Absolute Maximum Ratings................................................................................................... 65 Operating Temperature ......................................................................................................... 65 Power Supply Ratings ........................................................................................................... 66 Current Consumption ............................................................................................................ 67 Electro-static Discharge ........................................................................................................ 68 5.1. 5.2. 5.3. 5.4. 5.5. 6 Mechanical Dimensions .................................................................................................................... 70 Mechanical Dimensions of Module ....................................................................................... 70 Recommended Footprint ....................................................................................................... 72 Top View of the Module ......................................................................................................... 73 Bottom View of the Module ................................................................................................... 73 6.1. 6.2. 6.3. 6.4. 7 Storage and Manufacturing .............................................................................................................. 74 M95_User_Manual Confidential / Released 5 / 85 GSM/GPRS Module Series M95 User Manual 7.1. 7.2. 7.3. Storage .................................................................................................................................. 74 Soldering ............................................................................................................................... 74 Packaging .............................................................................................................................. 75 Tape and Reel Packaging .............................................................................................. 75 7.3.1. 8 Appendix A Reference ....................................................................................................................... 78 9 Appendix B GPRS Coding Scheme ................................................................................................. 83 10 Appendix C GPRS Multi-slot Class .................................................................................................. 85 M95_User_Manual Confidential / Released 6 / 85 GSM/GPRS Module Series M95 User Manual Table Index TABLE 1: MODULE KEY FEATURES ............................................................................................................... 13 TABLE 2: CODING SCHEMES AND MAXIMUM NET DATA RATES OVER AIR INTERFACE ........................ 15 TABLE 3: PIN DESCRIPTION ........................................................................................................................... 19 TABLE 4: MULTIPLEXED FUNCTIONS ............................................................................................................ 23 TABLE 5: OVERVIEW OF OPERATING MODES ............................................................................................. 23 TABLE 6: SUMMARY OF STATE TRANSITION ............................................................................................... 35 TABLE 7: LOGIC LEVELS OF THE UART INTERFACES ................................................................................ 38 TABLE 8: PIN DEFINITION OF THE UART INTERFACES .............................................................................. 38 TABLE 9: PIN DEFINITION OF AUDIO INTERFACE ....................................................................................... 44 TABLE 10: AOUT2 OUTPUT CHARACTERISTICS .......................................................................................... 45 TABLE 11: TYPICAL ELECTRET MICROPHONE CHARACTERISTICS ......................................................... 48 TABLE 12: TYPICAL SPEAKER CHARACTERISTICS .................................................................................... 48 TABLE 13: PIN DEFINITION OF PCM INTERFACE ......................................................................................... 49 TABLE 14: CONFIGURATION ........................................................................................................................... 50 TABLE 15: QPCMON COMMAND DESCRIPTION .......................................................................................... 53 TABLE 16: QPCMVOL COMMAND DESCRIPTION ......................................................................................... 53 TABLE 17: PIN DEFINITION OF THE SIM INTERFACES ................................................................................ 54 TABLE 18: BEHAVIORS OF THE RI ................................................................................................................. 57 TABLE 19: WORKING STATE OF THE NETLIGHT .......................................................................................... 58 TABLE 20: PIN DEFINITION OF THE STATUS ................................................................................................ 59 TABLE 21: PIN DEFINITION OF THE RF_ANT ................................................................................................ 61 TABLE 22: THE MODULE CONDUCTED RF OUTPUT POWER .................................................................... 62 TABLE 23: THE MODULE CONDUCTED RF RECEIVING SENSITIVITY ....................................................... 62 TABLE 24: THE MODULE OPERATING FREQUENCIES ................................................................................ 63 TABLE 25: ANTENNA CABLE REQUIREMENTS ............................................................................................. 63 TABLE 26: ANTENNA REQUIREMENTS .......................................................................................................... 63 TABLE 27: ABSOLUTE MAXIMUM RATINGS .................................................................................................. 65 TABLE 28: OPERATING TEMPERATURE ........................................................................................................ 65 TABLE 29: THE MODULE POWER SUPPLY RATINGS .................................................................................. 66 TABLE 30: THE MODULE CURRENT CONSUMPTION .................................................................................. 67 TABLE 31: THE ESD ENDURANCE (TEMPERATURE: 25C, HUMIDITY: 45%) ............................................ 69 TABLE 32: REEL PACKING .............................................................................................................................. 77 TABLE 33: RELATED DOCUMENTS ................................................................................................................ 78 TABLE 34: TERMS AND ABBREVIATIONS ...................................................................................................... 79 TABLE 35: DESCRIPTION OF DIFFERENT CODING SCHEMES .................................................................. 83 TABLE 36: GPRS MULTI-SLOT CLASSES ...................................................................................................... 85 M95_User_Manual Confidential / Released 7 / 85 GSM/GPRS Module Series M95 User Manual Figure Index FIGURE 1: MODULE FUNCTIONAL DIAGRAM ............................................................................................... 16 FIGURE 2: PIN ASSIGNMENT ......................................................................................................................... 18 FIGURE 3: VOLTAGE RIPPLE DURING TRANSMITTING .............................................................................. 25 FIGURE 4: REFERENCE CIRCUIT FOR THE VBAT INPUT ........................................................................... 26 FIGURE 5: REFERENCE CIRCUIT FOR POWER SUPPLY ............................................................................ 26 FIGURE 6: TURN ON THE MODULE WITH AN OPEN-COLLECTOR DRIVER .............................................. 27 FIGURE 7: TURN ON THE MODULE WITH A BUTTON .................................................................................. 28 FIGURE 8: TURN-ON TIMING .......................................................................................................................... 28 FIGURE 9: TURN-OFF TIMING ........................................................................................................................ 29 FIGURE 10: AN OPEN-COLLECTOR DRIVER FOR EMERG_OFF ................................................................ 31 FIGURE 11: REFERENCE CIRCUIT FOR EMERG_OFF BY USING BUTTON .............................................. 32 FIGURE 12: TIMING OF RESTARTING SYSTEM ............................................................................................ 32 FIGURE 13: TIMING OF RESTARTING SYSTEM AFTER EMERGENCY SHUTDOWN ................................ 33 FIGURE 14: VRTC IS SUPPLIED BY A NON-CHARGEABLE BATTERY ........................................................ 36 FIGURE 15: VRTC IS SUPPLIED BY A RECHARGEABLE BATTERY ............................................................ 36 FIGURE 16: VRTC IS SUPPLIED BY A CAPACITOR ...................................................................................... 36 FIGURE 17: REFERENCE DESIGN FOR FULL-FUNCTION UART ................................................................ 40 FIGURE 18: REFERENCE DESIGN FOR UART PORT ................................................................................... 41 FIGURE 19: REFERENCE DESIGN FOR UART PORT WITH HARDWARE FLOW CONTROL .................... 41 FIGURE 20: REFERENCE DESIGN FOR FIRMWARE UPGRADE ................................................................. 42 FIGURE 21: REFERENCE DESIGN FOR DEBUG PORT ............................................................................... 43 FIGURE 22: LEVEL MATCH DESIGN FOR 3.3V SYSTEM .............................................................................. 43 FIGURE 23: SKETCH MAP FOR RS-232 INTERFACE MATCH ...................................................................... 44 FIGURE 24: REFERENCE DESIGN FOR AIN1&AIN2 ..................................................................................... 46 FIGURE 25: REFERENCE INTERFACE DESIGN OF AOUT1 ......................................................................... 47 FIGURE 26: EARPHONE INTERFACE DESIGN .............................................................................................. 47 FIGURE 27: LOUD SPEAKER INTERFACE DESIGN ...................................................................................... 48 FIGURE 28: LONG SYNCHRONIZATION & SIGN EXTENSION DIAGRAM ................................................... 51 FIGURE 29: LONG SYNCHRONIZATION & ZERO PADDING DIAGRAM....................................................... 51 FIGURE 30: SHORT SYNCHRONIZATION & SIGN EXTENSION DIAGRAM ................................................. 51 FIGURE 31: SHORT SYNCHRONIZATION & ZERO PADDING DIAGRAM .................................................... 52 FIGURE 32: REFERENCE DESIGN FOR PCM ............................................................................................... 52 FIGURE 33: REFERENCE CIRCUIT FOR SIM1 INTERFACE WITH 8-PIN SIM CARD HOLDER ................. 55 FIGURE 34: REFERENCE CIRCUIT FOR SIM1 INTERFACE WITH THE 6-PIN SIM CARD HOLDER ......... 55 FIGURE 35: REFERENCE CIRCUIT FOR SIM2 INTERFACE WITH THE 6-PIN SIM CARD HOLDER ......... 56 FIGURE 36: RI BEHAVIOR OF VOICE CALLING AS A RECEIVER ................................................................ 57 FIGURE 37: RI BEHAVIOR AS A CALLER ....................................................................................................... 58 FIGURE 38: RI BEHAVIOR OF URC OR SMS RECEIVED ............................................................................. 58 FIGURE 39: REFERENCE DESIGN FOR NETLIGHT ..................................................................................... 59 FIGURE 40: REFERENCE DESIGN FOR STATUS .......................................................................................... 60 FIGURE 41: REFERENCE DESIGN FOR RF .................................................................................................. 61 M95_User_Manual Confidential / Released 8 / 85 GSM/GPRS Module Series M95 User Manual FIGURE 42: RF SOLDERING SAMPLE ........................................................................................................... 64 FIGURE 43: M95 MODULE TOP AND SIDE DIMENSIONS (UNIT: MM) ......................................................... 70 FIGURE 44: M95 MODULE BOTTOM DIMENSIONS (UNIT: MM) ................................................................... 71 FIGURE 45: RECOMMENDED FOOTPRINT (UNIT: MM) ................................................................................ 72 FIGURE 46: TOP VIEW OF THE MODULE ...................................................................................................... 73 FIGURE 47: BOTTOM VIEW OF THE MODULE .............................................................................................. 73 FIGURE 48: RAMP-SOAK-SPIKE REFLOW PROFILE .................................................................................... 75 FIGURE 49: TAPE AND REEL SPECIFICATION .............................................................................................. 76 FIGURE 50: DIMENSIONS OF REEL ............................................................................................................... 77 FIGURE 51: RADIO BLOCK STRUCTURE OF CS-1, CS-2 AND CS-3 ........................................................... 83 FIGURE 52: RADIO BLOCK STRUCTURE OF CS-4 ....................................................................................... 84 M95_User_Manual Confidential / Released 9 / 85 GSM/GPRS Module Series M95 User Manual 1 Introduction This document defines the M95 module and describes its hardware interface which are connected with your application and the air interface. This document can help you quickly understand module interface specifications, electrical and mechanical details. Associated with application notes and user guide, you can use M95 module to design and set up mobile applications easily. M95_User_Manual Confidential / Released 10 / 85 GSM/GPRS Module Series M95 User Manual 1.1. Safety Information The following safety precautions must be observed during all phases of the operation, such as usage, service or repair of any cellular terminal or mobile incorporating M95 module. Manufacturers of the cellular terminal should send the following safety information to users and operating personnel and to incorporate these guidelines into all manuals supplied with the product. If not so, Quectel does not take on any liability for your failure to comply with these precautions. Full attention must be given to driving at all times in order to reduce the risk of an accident. Using a mobie while driving (even with a handsfree kit) cause distraction and can lead to an accident. You must comply with laws and regulations restrcting the use of wireless devices while driving. Switch off the cellular terminal or mobile before boarding an aircraft. Make sure it switched off. The operation of wireless appliances in an aircraft is forbidden to prevent interference with communication systems. Consult the airline staff about the use of wireless devices on boarding the aircraft. If your device offers a Flight Mode which must be enabled prior to boarding an aircraft. Switch off your wireless device when in hospitals or clinics or other health care facilities. These requests are desinged to prevent possible interference with sentitive medical equipment. Cellular terminals or mobiles operate over radio frequency signal and cellular network and cannot be guaranteed to connect in all conditions, for example no mobile fee or an invalid SIM card. While you are in this condition and need emergent help, please remember using emergency call. In order to make or receive call, the cellular terminal or mobile must be switched on and in a service area with adequate cellular signal strength. Your cellular terminal or mobile contains a transmitter and receiver. When it is ON , it receives and transmits radio frequency energy. RF interference can occur if it is used close to TV set, radio, computer or other electric equipment. In locations with potencially explosive atmospheres, obey all posted signs to turn off wireless devices such as your phone or other cellular terminals. Areas with potencially exposive atmospheres including fuelling areas, below decks on boats, fuel or chemical transfer or storage facilities, areas where the air contains chemicals or particles such as grain, dust or metal powders. M95_User_Manual Confidential / Released 11 / 85 GSM/GPRS Module Series M95 User Manual 2 Product Concept 2.1. General Description M95 is a Quad-band GSM/GPRS engine that works at frequencies of GSM850MHz, EGSM900, DCS1800 and PCS1900MHz. The M95 features GPRS multi-slot class 12 and supports the GPRS coding schemes CS-1, CS-2, CS-3 and CS-4. For more details about GPRS multi-slot classes and coding schemes, please refer to the Appendix B & C. With a tiny profile of 19.9mm 23.6mm 2.65mm, the module can meet almost all the requirements for M2M applications, including Vehicles and Personal Tracking, Security System, Wireless POS, Industrial PDA, Smart Metering, and Remote Maintenance & Control, etc. M95 is an SMD type module with LCC package, which can be easily embedded into applications. It provides abundant hardware interfaces like Audio and UART Interface. Designed with power saving technique, the current consumption of M95 is as low as 1.3 mA in SLEEP mode when DRX is 5. M95 is integrated with Internet service protocols, such as TCP/UDP, FTP and PPP. Extended AT commands have been developed for you to use these Internet service protocols easily. The module fully complies with the RoHS directive of the European Union. 2.2. Directives and Standards The M95 module is designed to comply with the FCC statements. FCC ID: XMR201512M95 The Host system using M95, should have label indicated FCC ID: XMR201512M95. 2.2.1. FCC Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body as well as kept minimum 20cm from radio antenna depending on the Mobile status of this M95_User_Manual Confidential / Released 12 / 85 GSM/GPRS Module Series M95 User Manual module usage. This module should NOT be installed and operating simultaneously with other radio. The manual of the host system, which uses M95 must include RF exposure warning statement to advice user should keep minimum 20cm from the radio antenna of M95 module depending on the Mobile status. Note: If a portable device (such as PDA) uses M95 module, the device needs to do permissive change and SAR testing. The following list of antenna is indicating the maximum permissible antenna gain. Part Frequency Number Range (MHz) GSM850:
TX 824-849MHz RX 869-894MHz PCS1900 TX 1850-1910MHz RX 1930-1990MHz 3R007A Peak Gain
(XZ-V) Average Gain
(XZ-V) VSWR Impedance 1 dBi typ. 1 dBi typ. 3 max 50 Antenna gain including cable loss must not exceed 4.95 dBi of GSM 850 and 2.5 dBi of PCS 1900 for th e purpose of satisfying the requirements of 2.1043 and 2.1091. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20cm from all persons and must not be co-located or operated in conjunction with any antenna or transmitter not described under this FCC ID. The final product operating with this transmitter must include operating instructions and antenna installation instructions, for end-users and installers to satisfy RF exposure compliance requirements. Compliance of this device in all final product configurations is the responsibility of the Grantee. Installation of this device into specific final products may require the submission of a Class II permissive change application containing data pertinent to RF Exposure, spurious emissions, ERP/EIRP, and host/module authentication, or new application if appropriate. Installation of this device into specific final products may require the submission of a Class II permissive change application containing data pertinent to RF Exposure, spurious emissions, ERP/EIRP, and host/module authentication, or new application if appropriate. 2.3. Key Features The following table describes the detailed features of M95 module. Table 1: Module Key Features Feature Implementation M95_User_Manual Confidential / Released 13 / 85 GSM/GPRS Module Series M95 User Manual Power Supply Power Saving Frequency Bands Single supply voltage: 3.3V ~ 4.6V Typical supply voltage: 4V Typical power consumption in SLEEP mode: 1.3 mA @DRX=5 1.2 mA @DRX=9 Quad-band: GSM850, EGSM900, DCS1800, PCS1900 The module can search these frequency bands automatically The frequency bands can be set by AT command Compliant to GSM Phase 2/2+
GSM Class Small MS Transmitting Power Class 4 (2W) at GSM850 and EGSM900 Class 1 (1W) at DCS1800 and PCS1900 GPRS multi-slot class 10 (default) GPRS Connectivity GPRS multi-slot class 1~10 (configurable) GPRS mobile station class B GPRS data downlink transfer: max. 85.6kbps GPRS data uplink transfer: max. 85.6kbps Coding scheme: CS-1, CS-2, CS-3 and CS-4 DATA GPRS usually used for PPP connections Support the protocols PAP (Password Authentication Protocol) Internet service protocols :
TCP/UDP/FTP/PPP/HTTP/NTP/MMS/SMTP/PING Support Packet Broadcast Control Channel (PBCCH) Support Unstructured Supplementary Service Data (USSD) Normal operation: -35C ~ +80C Restricted operation: -40C ~ -35C and +80C ~ +85C 1) Storage temperature: -45C ~ +90C Temperature Range SMS Text and PDU mode SMS storage: SIM card SIM Interfaces Support SIM card: 1.8V, 3V Speech codec modes:
Half Rate (ETS 06.20) Full Rate (ETS 06.10) Audio Features Adaptive Multi-Rate (AMR) Enhanced Full Rate (ETS 06.50/06.60/06.80) Echo Suppression Noise Reduction Embedded one amplifier of class AB with maximum driving power up UART Interfaces to 870mW UART Port:
Seven lines on UART port interface Used for AT command, GPRS data Multiplexing function M95_User_Manual Confidential / Released 14 / 85 GSM/GPRS Module Series M95 User Manual Support autobauding from 4800bps to 115200bps Debug Port:
Two lines on debug port interface DBG_TXD and DBG_RXD Debug Port can used for firmware debugging Phonebook Management Support phonebook types: SM, ME, FD, ON, MT SIM Application Toolkit Support SAT class 3, GSM 11.14 Release 99 Real Time Clock Supported Physical Characteristics Size: 19.90.15 23.60.15 2.650.2mm Weight: Approx. 2.5g Firmware Upgrade Firmware upgrade via UART Port Antenna Interface Connected to antenna pad with 50 Ohm impedance control NOTE 1) When the module works within this temperature range, the deviations from the GSM specification may occur. For example, the frequency error or the phase error will be increased. Table 2: Coding Schemes and Maximum Net Data Rates over Air Interface Coding Scheme 1 Timeslot 2 Timeslot 4 Timeslot CS-1 CS-2 CS-3 CS-4 9.05kbps 18.1kbps 36.2kbps 13.4kbps 26.8kbps 53.6kbps 15.6kbps 31.2kbps 62.4kbps 21.4kbps 42.8kbps 85.6kbps 2.4. Functional Diagram The following figure shows a block diagram of M95 and illustrates the major functional parts. Radio frequency part Power management The Peripheral interface Power supply M95_User_Manual Confidential / Released 15 / 85 GSM/GPRS Module Series M95 User Manual Turn-on/off interface UART interfaces RTC interface Audio interfaces PCM interface SIM interfaces RF interface Figure 1: Module Functional Diagram 2.5. Evaluation Board In order to help you to develop applications with M95, Quectel supplies an evaluation board (EVB), RS-232 to USB cable, power adapter, earphone, antenna and other peripherals to control or test the module. For details, please refer to the document [4]. M95_User_Manual Confidential / Released 16 / 85 BB&RFRF PAM26MHzRF TransceiverRTCGPIO&PWMSerial InterfaceSIM InterfaceRF_ANTVBATPWRKEYEMERG_OFFVRTCStatus&NetlightUARTSIM Interfaces ResetESDPMUMEMORYAudioAudioPCM InterfacePCM GSM/GPRS Module Series M95 User Manual 3 Application Interface The module adopts LCC package and has 42 pins. The following chapters provide detailed descriptions about these pins below:
Power supply Power on/down RTC Serial interfaces Audio interfaces PCM interface SIM interfaces RI NETLIGHT STATUS M95_User_Manual Confidential / Released 17 / 85 GSM/GPRS Module Series M95 User Manual 3.1. Pin of Module 3.1.1. Pin Assignment Figure 2: Pin Assignment M95_User_Manual Confidential / Released 18 / 85 VBATRFOtherGNDUARTAudioPowerSIM SIM_GND31 SIM1_CLK30 SIM1_DATA29 SIM1_RST28 SIM1_VDD27PCM_OUT41PCM_IN42SIM2_VDD18SIM2_CLK17SIM2_DATA1619VDD_EXTPWRKEY10EMERG_OFF11STATUS/ PCM_SYNC12NETLIGHT13Top view37GND39RF_ANT34VBAT1AGND32VRTC38GND40GND36GND35GND33VBAT25DCD/SIM2_RST24RTS23CTS22TXD21RXD26RI/PCM_CLK2MIC2P3MIC2N4MIC1P5MIC1N6SPK1N7SPK1P8LOUDSPKN9LOUDSPKP14DBG_RXD15DBG_TXD20DTR/SIM1_PRESENCEPCM GSM/GPRS Module Series M95 User Manual 3.1.2. Pin Description Table 3: Pin Description Power Supply PIN NAME PIN NO. I/O DESCRIPTION DC CHARACTERISTICS COMMENT Main power supply of Vmax=4.6V VBAT 33, 34 I module:
VBAT=3.3V~4.6V Vmin=3.3V Vnorm=4.0V VImax=3.3V VRTC 32 I/O Power supply for RTC VImin=1.5V when VBAT is not supplied VInorm=2.8V for the system. Charging for backup VOmax=3V VOmin=2V battery or golden capacitor VOnorm=2.8V when the VBAT is applied. Iout(max)=2mA Iin10uA VDD_ EXT 19 O Supply 2.8V voltage for Vmin=2.7V Vmax=2.9V external circuit. Vnorm=2.8V Imax=20mA 35,36,3 7,38, 40 Ground GND Turn on/off PIN NAME PIN NO. I/O DESCRIPTION DC CHARACTERISTICS Power on/off key. PWRKEY should be pulled down for a moment to turn on or turn off the system. VILmax=
0.1VBAT VIHmin=
0.6VBAT VImax=3.1V PWRKEY 10 I Emergency Shutdown Make sure that supply sufficient current in a transmitting burst typically rises to 1.6A. If unused, keep this pin open. 1. If unused, keep this pin open. 2. Recommend to add a 2.2~4.7uF bypass capacitor, when using this pin for power supply. COMMENT M95_User_Manual Confidential / Released 19 / 85 GSM/GPRS Module Series M95 User Manual PIN NAME PIN NO. I/O DESCRIPTION DC CHARACTERISTICS COMMENT Emergency off. Pulled down for at least 40ms, which will turn off the module in case of emergency. Use it only when shutdown via PWRKEY or AT command cannot be achieved. VILmax=0.45V VIHmin=1.35V Vopenmax=1.8V Open drain/collector driver required in cellular device application. If unused, keep this pin open. EMERG_ OFF 11 I Module Indicator PIN NAME PIN NO. I/O DESCRIPTION DC CHARACTERISTICS COMMENT Indicate modules operating status. Output VOHmin=
STATUS 12 O high level when module 0.85VDD_EXT If unused, keep turns on, while output low VOLmax=
these pins open. level when module turns 0.15VDD_EXT off. Audio Interfaces PIN NAME PIN NO. I/O DESCRIPTION DC CHARACTERISTICS COMMENT MIC1P MIC1N MIC2P MIC2N SPK1P SPK1N 4,5 2,3 I I Channel 1 positive and negative voice input Channel 2 positive and negative voice input 7,6 O Channel 1 positive and negative voice output AGND 1 ground connection for external audio circuits. Analog ground. Separate LOUD SPKN LOUD SPKP 8,9 O Channel 3 positive and negative voice output If unused, keep these pins open. 1. If unused, keep these pins open. 2. Support both voice and ringtone output. Refer to Section 3.8 If unused, keep this pin open. 1. If unused, keep these pins open. 2. Integrate a Class- AB amplifier internally. 3. Support both voice and ringtone output. M95_User_Manual Confidential / Released 20 / 85 GSM/GPRS Module Series M95 User Manual Network Status Indicator PIN NAME PIN NO. I/O DESCRIPTION DC CHARACTERISTICS VOHmin=
COMMENT NETLIGHT 13 O Network status 0.85VDD_EXT If unused, keep indication VOLmax=
this pin open. 0.15VDD_EXT UART Port PIN NAME PIN NO. I/O DESCRIPTION DC CHARACTERISTICS COMMENT DTR RXD TXD RTS CTS RI DCD 20 21 22 24 23 26 25 I I Data terminal ready Receive data O Transmit data VILmin=0V VILmax=
0.25VDD_EXT VIHmin=
0.75VDD_EXT I Request to send VIHmax=
O Clear to send O Ring indication O Data carrier detection VDD_EXT+0.2 VOHmin=
0.85VDD_EXT VOLmax=
0.15VDD_EXT If only use TXD, RXD and GND to communicate, recommended connecting RTS to GND via 0R resistor and keeping other pins open. Debug Port PIN NAME PIN NO. I/O DESCRIPTION DBG_ TXD DBG_ RXD 15 14 O Transmit data I Receive data SIM Interfaces PIN NAME PIN NO I/O DESCRIPTION DC CHARACTERISTICS COMMENT Same as above If unused, keep these pins open. DC CHARACTERISTICS The voltage can be COMMENT All signals of SIM interfaces should SIM1_ VDD SIM1_ CLK 27 O Power supply for SIM1 selected by software card automatically. Either be protected 30 O SIM1 clock 1.8V or 3V. VOLmax=
against ESD with a TVS diode array. 0.15SIM1_VDD Maximum trace VOHmin=
0.85SIM1_VDD length is 200mm from the module M95_User_Manual Confidential / Released 21 / 85 GSM/GPRS Module Series M95 User Manual SIM1_ DATA SIM1_ RST SIM1_ PRESENCE SIM_ GND SIM2_ VDD SIM2_ CLK SIM2_ DATA SIM2_ RST 29 I/O SIM1 data 28 O SIM1 reset VOLmax=
pad to SIM card 0.15SIM1_VDD holder. VOHmin=
0.85SIM1_VDD VOLmax=
0.15SIM1_VDD VOHmin=
0.85SIM1_VDD VILmin=0V VILmax=
0.25VDD_EXT 20 I SIM1 card detection. VIHmin=
0.75VDD_EXT VIHmax=
VDD_EXT+0.2 31 SIM ground 18 O Power supply for SIM2 selected by software card automatically. Either The voltage can be 17 O SIM2 clock 16 I/O SIM2 data 25 O SIM2 reset 1.8V or 3V. VOLmax=
0.15SIM2_VDD VOHmin=
0.85SIM2_VDD VOLmax=
0.15SIM2_VDD VOHmin=
0.85SIM2_VDD VOLmax=
0.15SIM2_VDD VOHmin=
0.85SIM2_VDD RF Interface PIN NAME PIN NO. I/O DESCRIPTION DC CHARACTERISTICS COMMENT RF_ANT 39 I/O RF antenna pad Impedance of 50 PCM Interface PIN NAME PIN NO. I/O DESCRIPTION DC CHARACTERISTICS COMMENT M95_User_Manual Confidential / Released 22 / 85 PCM_ SYNC PCM_ CLK PCM_ OUT GSM/GPRS Module Series M95 User Manual 12 O PCM sync signal VILmin=-0.3V VILmax=
The default function is 0.25VDD_EXT STATUS after VIHmin=
0.75VDD_EXT startup. The default 26 O PCM clock signal VIHmax=
function is RI after 41 O PCM serial data output PCM_IN 42 I PCM serial data input Table 4: Multiplexed Functions VDD_EXT+0.2 startup. VOHmin=
0.85VDD_EXT VOLmax=
0.15VDD_EXT If unused, keep these pins open. PIN NAME PIN NO. Function After Reset Alternate Function1) STATUS/PCM_SYNC DTR/SIM1_PRESENCE DCD/SIM2_RST RI/PCM_CLK 12 20 25 26 STATUS PCM_SYNC DTR DCD RI SIM1_PRESENCE SIM2_RST PCM_CLK NOTE 1) The alternate function can be configured through AT command. For details, please refer to the section 3.9 and section 3.10. 3.2. Operating Modes The table below briefly summarizes the various operating modes in the following chapters. Table 5: Overview of Operating Modes Mode Function Normal Operation GSM/GPRS Sleep After enabling sleep mode by AT+QSCLK=1, the module will automatically go into Sleep Mode if DTR is set to high level and there is no interrupt (such as GPIO interrupt or data on UART port). In this case, the current consumption of module will be reduced to the minimal level. During M95_User_Manual Confidential / Released 23 / 85 GSM/GPRS Module Series M95 User Manual Sleep Mode, the module can still receive paging message and SMS from the system normally. Software is active. The module has registered to the GSM GSM IDLE network, and the module is ready to send and receive GSM TALK GPRS IDLE GPRS STANDBY GSM data. GSM connection is ongoing. In this mode, the power consumption is decided by the configuration of Power Control Level (PCL), dynamic DTX control and the working RF band. The module is not registered to GPRS network. The module is not reachable through GPRS channel. The module is registered to GPRS network, but no GPRS PDP context is active. The SGSN knows the Routing Area where the module is located at. The PDP context is active, but no data transfer is ongoing. GPRS READY The module is ready to receive or send GPRS data. The SGSN knows the cell where the module is located at. There is GPRS data in transfer. In this mode, power GPRS DATA consumption is decided by the PCL, working RF band and GPRS multi-slot configuration. Normal shutdown by sending the AT+QPOWD=1 command, using the PWRKEY or the EMERG_OFF1) pin. The power management ASIC disconnects the power supply from the base band part of the module, and only the power supply for the RTC is remained. Software is not active. The UART interfaces are not accessible. Operating voltage (connected to VBAT) remains applied. POWER DOWN Minimum Functionality Mode (without Removing Power Supply) AT+CFUN command can set the module to a minimum functionality mode without removing the power supply. In this case, the RF part of the module will not work or the SIM card will not be accessible, or both RF part and SIM card will be disabled, but the UART port is still accessible. The power consumption in this case is very low. NOTE 1) Use the EMERG_OFF pin only when failing to turn off the module by the command AT+QPOWD=1 and the PWRKEY pin. For more details, please refer to the Section 3.4.2.4. M95_User_Manual Confidential / Released 24 / 85 GSM/GPRS Module Series M95 User Manual 3.3. Power Supply 3.3.1. Power Features of Module The power supply is one of the key issues in designing GSM terminals. Because of the 577us radio burst in GSM every 4.615ms, power supply must be able to deliver high current peaks in a burst period. During these peaks, drops on the supply voltage must not exceed minimum working voltage of module. For M95 module, the max current consumption could reach to 1.6A during a transmit burst. It will cause a large voltage drop on the VBAT. In order to ensure stable operation of the module, it is recommended that the max voltage drop during the transmit burst does not exceed 400mV. Figure 3: Voltage Ripple during Transmitting 3.3.2. Decrease Supply Voltage Drop The power supply range of the module is 3.3V to 4.6V. Make sure that the input voltage will never drop below 3.3V even in a transmitting burst. If the power voltage drops below 3.3V, the module could turn off automatically. For better power performance, it is recommended to place a 100uF tantalum capacitor with low ESR (ESR=0.7) and ceramic capacitor 100nF, 33pF and 10pF near the VBAT pin. The reference circuit is illustrated in Figure 4. The VBAT route should be wide enough to ensure that there is not too much voltage drop during transmit burst. The width of trace should be no less than 2mm and the principle of the VBAT route is the longer route, the wider trace. M95_User_Manual Confidential / Released 25 / 85 Vdrop4.615ms577usIBATVBATBurst:1.6A GSM/GPRS Module Series M95 User Manual Figure 4: Reference Circuit for the VBAT Input 3.3.3. Reference Design for Power Supply The power design for the module is very important, since the performance of power supply for the module largely depends on the power source. The power supply is capable of providing the sufficient current up to 2A at least. If the voltage drop between the input and output is not too high, it is suggested to use a LDO as modules power supply. If there is a big voltage difference between the input source and the desired output (VBAT), a switcher power converter is recommended to be used as a power supply. Figure 5 shows a reference design for +5V input power source. The designed output for the power supply is 4.0V and the maximum load current is 3A. In addition, in order to get a stable output voltage, a zener diode is placed close to the pins of VBAT. As to the zener diode, it is suggested to use a zener diode of which reverse zener voltage is 5.1V and dissipation power is more than 1 Watt. Figure 5: Reference Circuit for Power Supply M95_User_Manual Confidential / Released 26 / 85 VBATC2C1+C3C4GND100uF100nF10pF060333pF0603DC_INC1C2MIC29302WUU1INOUTENGNDADJ24135VBAT 100nFC3470uFC4100nFR2D1124K56KR3470uF5.1VR4470RMCU_POWER_ON/OFF47K4.7KR5R6R151K GSM/GPRS Module Series M95 User Manual NOTE It is suggested to control the modules main power supply (VBAT) via LDO enable pin to restart the module when the module has become abnormal. Power switch circuit like P-channel MOSFET switch circuit can also be used to control VBAT. 3.3.4. Monitor Power Supply The command AT+CBC can be used to monitor the supply voltage of the module. The unit of the displayed voltage is mV. For details, please refer to the document [1]. 3.4. Power On and Down Scenarios 3.4.1. Power On The module can be turned on by driving the pin PWRKEY to a low level voltage. An open collector driver circuit is suggested to control the PWRKEY. A simple reference circuit is illustrated as below. NOTE Figure 6: Turn On the Module with an Open-collector Driver 1. M95 module is set to autobauding mode (AT+IPR=0) by default. In the autobauding mode, URC RDY is not reported to the host controller after module is powered on. When the module is powered on after a delay of 4 or 5 seconds, it can receive AT command. Host controller should first send an AT or at string in order that the module can detect baud rate of host controller, it should continue to send the next AT string until receiving OK string from the module. Then enter AT+IPR=x;&W to set a fixed baud rate for the module and save the configuration to flash memory of the module. After M95_User_Manual Confidential / Released 27 / 85 Turn on pulsePWRKEY4.7K47K GSM/GPRS Module Series M95 User Manual these configurations, the URC RDY would be received from the UART Port of the module every time when the module is powered on. For more details, refer to the section AT+IPR in document [1]. 2. AT command response indicates module is turned on successfully, or else the module fails to be turned on. The other way to control the PWRKEY is through a button directly. A TVS component is indispensable to be placed nearby the button for ESD protection. For the best performance, the TVS component must be placed nearby the button. When pressing the key, electrostatic strike may generate from finger. A reference circuit is shown in the following figure. Figure 7: Turn On the Module with a Button The turn-on timing is illustrated as the following figure. Figure 8: Turn-on Timing M95_User_Manual Confidential / Released 28 / 85 PWRKEYS1Close to S1TVSVDD_EXT(OUTPUT)VIL<0.1*VBATVIH > 0.6*VBATVBATPWRKEY(INPUT)EMERG_OFF(INPUT)54msSTATUS(OUTPUT)800ms>1sOFFBOOTINGMODULE STATUSRUNNINGT1 GSM/GPRS Module Series M95 User Manual NOTE 1. Make sure that VBAT is stable before pulling down PWRKEY pin. The time of T1 is recommended as 100ms. 2. EMERG_OFF should be floated when it is unused. 3. For more details about the application of STATUS pin, please refer to the Chapter 3.13. 3.4.2. Power Down The following procedures can be used to turn off the module:
Normal power down procedure: Turn off module using the PWRKEY pin. Normal power down procedure: Turn off module using command AT+QPOWD=1. Over-voltage or under-voltage automatic shutdown: Take effect when over-voltage or under-voltage is detected. Emergent power down procedure: Turn off module using the EMERG_OFF pin. 3.4.2.1. Power Down Module Using the PWRKEY Pin It is a safe way to turn off the module by driving the PWRKEY to a low level voltage for a certain time. The power down scenario is illustrated in Figure 9. Figure 9: Turn-off Timing The power down procedure causes the module to log off from the network and allows the firmware to save important data before completely disconnecting the power supply. M95_User_Manual Confidential / Released 29 / 85 VBATPWRKEY(INPUT)STATUS(OUTPUT)EMERG_OFF(INPUT)Logout net about 2s to 12s0.7s<Pulldown<1s GSM/GPRS Module Series M95 User Manual Before the completion of the power down procedure, the module sends out the result code shown below:
NORMAL POWER DOWN NOTE 1. This result code does not appear when autobauding is active and DTE and DCE are not correctly synchronized after start-up. The module is recommended to set a fixed baud rate. 2. As logout network time is related to the local mobile network, it is recommended to delay about 12 seconds before disconnecting the power supply or restarting the module. 3. For more details about the application of STATUS pin, please refer to the Chapter 3.13. After that moment, no further AT commands can be executed. Then the module enters the power down mode, only the RTC is still active. 3.4.2.2. Power Down Module Using AT Command It is also a safe way to turn off the module via AT command AT+QPOWD=1. This command will let the module to log off from the network and allow the firmware to save important data before completely disconnecting the power supply. Before the completion of the power down procedure, the module sends the result code as shown below:
NORMAL POWER DOWN After that moment, no further AT commands can be executed. And then the module enters the power down mode, only the RTC is still active. Please refer to the document [1] for details about the AT command AT+QPOWD. 3.4.2.3. Over-voltage or Under-voltage Automatic Shutdown The module will constantly monitor the voltage applied on the VBAT, if the voltage is 3.5V, the following URC will be presented:
UNDER_VOLTAGE WARNING If the voltage is 4.5V, the following URC will be presented:
OVER_VOLTAGE WARNING M95_User_Manual Confidential / Released 30 / 85 GSM/GPRS Module Series M95 User Manual The normal input voltage range is from 3.3V to 4.6V. If the voltage is >4.6V or <3.3V, the module would automatically shut down itself. If the voltage is <3.3V, the following URC will be presented:
UNDER_VOLTAGE POWER DOWN If the voltage is >4.6V, the following URC will be presented:
OVER_VOLTAGE POWER DOWN After that moment, no further AT commands can be executed. The module logs off from network and enters power down mode, and only RTC is still active. NOTE 1. These result codes do not appear when autobauding is active and DTE and DCE are not correctly synchronized after start-up. The module is recommended to set to a fixed baud rate. 2. Over-voltage warning and shutdown function is disabled by default. 3.4.2.4. Emergency Shutdown Using EMERG_OFF Pin The module can be shut down by driving the pin EMERG_OFF to a low level voltage over 40ms and then releasing it. The EMERG_OFF line can be driven by an open-drain/collector driver or a button. The circuit is illustrated as the following figures. Figure 10: An Open-collector Driver for EMERG_OFF M95_User_Manual Confidential / Released 31 / 85 Emergency shutdown pulseEMERG_OFF4.7K47K GSM/GPRS Module Series M95 User Manual Figure 11: Reference Circuit for EMERG_OFF by Using Button Be cautious to use the pin EMERG_OFF. It should only be used under emergent situation. For instance, if the module is unresponsive or abnormal, the pin EMERG_OFF could be used to shut down the system. Although turning off the module by EMERG_OFF is fully tested and nothing wrong detected, this operation is still a big risk as it could cause destroying of the code or data area of the flash memory in the module. Therefore, it is recommended that PWRKEY or AT command should always be the preferential way to turn off the system. 3.4.3. Restart The module can be restarted by driving the PWRKEY to a low level voltage for a certain time, which is similar to the way of turning on module. In order to make the internal LDOs discharge completely after turning off the module, it is recommended to delay about 500ms before restarting the module. The restart timing is illustrated as the following figure. Figure 12: Timing of Restarting System M95_User_Manual Confidential / Released 32 / 85 S2EMERG_OFFTVS2Close to S2PWRKEY(INPUT)STATUS(OUTPUT)Delay >500msTurn offRestartPull down the PWRKEY to turn on the module GSM/GPRS Module Series M95 User Manual The module can also be restarted by the PWRKEY after emergency shutdown. NOTE Figure 13: Timing of Restarting System after Emergency Shutdown For more details about the application of STATUS pin, please refer to the Chapter 3.13. 3.5. Power Saving Based on system requirements, there are several actions to drive the module to enter low current consumption status. For example, AT+CFUN can be used to set module into minimum functionality mode and DTR hardware interface signal can be used to lead system to SLEEP mode. 3.5.1. Minimum Functionality Mode Minimum functionality mode reduces the functionality of the module to a minimum level. The consumption of the current can be minimized when the slow clocking mode is activated at the same time. The mode is set with the AT+CFUN command which provides the choice of the functionality levels <fun>=0, 1, 4. 0: minimum functionality. 1: full functionality (default). 4: disable both transmitting and receiving of RF part. M95_User_Manual Confidential / Released 33 / 85 EMERG_OFF(INPUT)STATUS(OUTPUT)Delay >500msPulldown >40msPWRKEY(INPUT) GSM/GPRS Module Series M95 User Manual If the module is set to minimum functionality by AT+CFUN=0, the RF function and SIM card function would be disabled. In this case, the UART port is still accessible, but all AT commands related with RF function or SIM card function will be not available. If the module has been set by the command with AT+CFUN=4, the RF function will be disabled, but the UART port is still active. In this case, all AT commands related with RF function will be not available. After the module is set by AT+CFUN=0 or AT+CFUN=4, it can return to full functionality by AT+CFUN=1. For detailed information about AT+CFUN, please refer to the document [1]. 3.5.2. SLEEP Mode The SLEEP mode is disabled by default. You can enable it by AT+QSCLK=1. On the other hand, the default setting is AT+QSCLK=0 and in this mode, the module cannot enter SLEEP mode. When the module is set by the command with AT+QSCLK=1, you can control the module to enter or exit from the SLEEP mode through pin DTR. When DTR is set to high level, and there is no on-air or hardware interrupt such as GPIO interrupt or data on UART port, the module will enter SLEEP mode automatically. In this mode, the module can still receive voice, SMS or GPRS paging from network, but the UART port does not work. 3.5.3. Wake Up Module from SLEEP Mode When the module is in the SLEEP mode, the following methods can wake up the module. If the DTR Pin is set low, it would wake up the module from the SLEEP mode. The UART port will be active within 20ms after DTR is changed to low level. Receiving a voice or data call from network will wake up the module. Receiving an SMS from network will wake up the module. NOTE DTR pin should be held at low level during communication between the module and DTE. M95_User_Manual Confidential / Released 34 / 85 GSM/GPRS Module Series M95 User Manual 3.5.4. Summary of State Transition Table 6: Summary of State Transition Current Mode Next Mode Power Down Normal Mode Sleep Mode Power Down Use PWRKEY Normal Mode AT+QPOWD, use PWRKEY pin, or use EMERG_OFF pin Use AT command AT+QSCLK=1 and pull DTR up SLEEP Mode Use PWRKEY pin, or use EMERG_OFF pin Pull DTR down or incoming voice call or SMS or data call 3.6. RTC Backup The RTC (Real Time Clock) function is supported. The RTC is designed to work with an internal power supply. There are three kinds of designs for RTC backup power:
Use VBAT as the RTC power source. When the module is turned off and the main power supply (VBAT) is remained, the real time clock is still active as the RTC core is supplied by VBAT. In this case, the VRTC pin can be kept floating. Use VRTC as the RTC power source. If the main power supply (VBAT) is removed after the module is turned off, a backup supply such as a coin-cell battery (rechargeable or non-chargeable) or a super-cap can be used to supply the VRTC pin to keep the real time clock active. Use VBAT and VRTC as the RTC power source. As only powering the VRTC pin to keep the RTC will lead an error about 5 minutes a day, it is recommended to power VBAT and VRTC pin at the same time when RTC function is needed. The recommended supply for RTC core circuits are shown as below. M95_User_Manual Confidential / Released 35 / 85 GSM/GPRS Module Series M95 User Manual Figure 14: VRTC Is Supplied by a Non-chargeable Battery Figure 15: VRTC Is Supplied by a Rechargeable Battery Figure 16: VRTC Is Supplied by a Capacitor M95_User_Manual Confidential / Released 36 / 85 Non-chargeable Backup BatteryModuleRTC CoreVBATPower SupplyLDO/DCDCLDOVRTC1.5KRechargeable Backup BatteryModuleRTC CoreVBATPower SupplyLDO/DCDCLDOVRTC1.5KModuleRTC CoreVBATPower SupplyLDO/DCDCLDOVRTC1.5KLarge Capacitance Capacitor GSM/GPRS Module Series M95 User Manual For the choice of a rechargeable or non-chargeable coin-cell battery, please visit http://www.sii.co.jp/en/. NOTE If the module is only powered by VRTC , the real time will have an error about 5 minutes a day. If you want to keep an accurate real time, please use VBAT to supply the RTC core. 3.7. Serial Interfaces The module provides two serial ports: UART Port and Debug Port. The module is designed as a DCE
(Data Communication Equipment), following the traditional DCE-DTE (Data Terminal Equipment) connection. Autobauding function supports baud rate from 4800bps to 115200bps. The UART Port:
TXD: Send data to RXD of DTE. RXD: Receive data from TXD of DTE. RTS: Request to send. CTS: Clear to send. DTR: DTE is ready and inform DCE (this pin can wake up the module). RI: Ring indicator (when the call, SMS, data of the module are coming, the module will output signal to inform DTE). DCD: Data carrier detection (the validity of this pin demonstrates the communication link is set up). NOTE Hardware flow control is disabled by default. When hardware flow control is required, RTS and CTS should be connected to the host. AT command AT+IFC=2,2 is used to enable hardware flow control. AT command AT+IFC=0,0 is used to disable the hardware flow control. For more details, please refer to the document [1]. The Debug Port:
DBG_TXD: Send data to the COM port of computer. DBG_RXD: Receive data from the COM port of computer. M95_User_Manual Confidential / Released 37 / 85 GSM/GPRS Module Series M95 User Manual The logic levels are described in the following table. Table 7: Logic Levels of the UART Interfaces Parameter VIL VIH VOL VOH Min. 0 Max. Unit 0.25VDD_EXT 0.75VDD_EXT VDD_EXT +0.2 0 0.15VDD_EXT 0.85VDD_EXT VDD_EXT V V V V Table 8: Pin Definition of the UART Interfaces Interfaces Pin No. Pin Name Description Alternate Function DBG_RXD Receive data DBG_TXD Transmit data 1)DTR RXD TXD CTS RTS 2)DCD 3)RI Data terminal ready SIM1_PRESENCE Receive data Transmit data Clear to send Request to send Data carrier detection SIM2_RST Ring indication PCM_CLK Debug Port 14 15 20 21 22 UART Port 23 24 25 26 NOTE 1. 2. 3. 1) DTR pin can be used as SIM1_PRESENCE pin via AT+QSIMDET command. 2) When using the SIM2 interface, DCD pin can be used as SIM2_RST pin. For more details, please refer to the document [6]. 3) When using the PCM interface, RI pin can be used as PCM_CLK. M95_User_Manual Confidential / Released 38 / 85 GSM/GPRS Module Series M95 User Manual 3.7.1. UART Port 3.7.1.1. The Features of UART Port Seven lines on UART interface. Contain data lines TXD and RXD, hardware flow control lines RTS and CTS, other control lines DTR, DCD and RI. Used for AT command, GPRS data, etc. Multiplexing function is supported on the UART Port. So far only the basic mode of multiplexing is available. Support the communication baud rates as the following:
300, 600, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600 and 115200. The default setting is autobauding mode. Support the following baud rates for Autobauding function:
4800, 9600, 19200, 38400, 57600 and 115200. The module disables hardware flow control by default. AT command AT+IFC=2,2 is used to enable hardware flow control. After setting a fixed baud rate or autobauding, please send AT string at that rate. The UART port is ready when it responds OK. Autobauding allows the module to detect the baud rate by receiving the string AT or at from the host or PC automatically, which gives module flexibility without considering which baud rate is used by the host controller. Autobauding is enabled by default. To take advantage of the autobauding mode, special attention should be paid according to the following requirements:
1. Synchronization between DTE and DCE:
When DCE (the module) powers on with the autobauding enabled, it is recommended to wait 4 to 5 seconds before sending the first AT character. After receiving the OK response, DTE and DCE are correctly synchronized. If the host controller needs URC in the mode of autobauding, it must be synchronized firstly. Otherwise the URC will be discarded. 2. Restrictions on autobauding operation:
The UART port has to be operated at 8 data bits, no parity and 1 stop bit (factory setting). Only the strings AT or at can be detected (neither At nor aT). The Unsolicited Result Codes like RDY, +CFUN: 1 and +CPIN: READY will not be indicated when the module is turned on with autobauding enabled and not be synchronized. Any other Unsolicited Result Codes will be sent at the previous baud rate before the module detects the new baud rate by receiving the first AT or at string. The DTE may receive unknown characters after switching to new baud rate. It is not recommended to switch to autobauding from a fixed baud rate. M95_User_Manual Confidential / Released 39 / 85 GSM/GPRS Module Series M95 User Manual If autobauding is active it is not recommended to switch to multiplex mode. NOTE To assure reliable communication and avoid any problems caused by undetermined baud rate between DCE and DTE, it is strongly recommended to configure a fixed baud rate and save it instead of using autobauding after start-up. For more details, please refer to the Section AT+IPR in document [1]. 3.7.1.2. The Connection of UART The connection between module and host using UART Port is very flexible. Three connection styles are illustrated as below. Reference design for Full-Function UART connection is shown as below when it is applied in modulation-demodulation. Figure 17: Reference Design for Full-Function UART M95_User_Manual Confidential / Released 40 / 85 TXDRXDRTSCTSDTRDCDRITXDRXDRTSCTSDTRDCDRINGModule (DCE)Serial portUART portGNDGNDPC (DTE) GSM/GPRS Module Series M95 User Manual Three-line connection is shown as below. Figure 18: Reference Design for UART Port UART Port with hardware flow control is shown as below. This connection will enhance the reliability of the mass data communication. Figure 19: Reference Design for UART Port with Hardware Flow Control M95_User_Manual Confidential / Released 41 / 85 TXDRXDGNDUART portRTS0RTXDRXDGNDModule (DCE)Host (DTE)Controller RTSCTSRTSCTSGNDRXDTXDTXDRXDGNDModule (DCE)Host (DTE) Controller GSM/GPRS Module Series M95 User Manual 3.7.1.3. Firmware Upgrade The TXD, RXD can be used to upgrade firmware. The PWRKEY pin must be pulled down before firmware upgrade. The reference circuit is shown as below:
NOTE Figure 20: Reference Design for Firmware Upgrade The firmware of module might need to be upgraded due to certain reasons. It is recommended to reserve these pins in the host board for firmware upgrade. 3.7.2. Debug Port As to Debug Port, there are two working modes, Standard Mode and Advanced Mode, which can be switched through using AT command AT+QEAUART. For more details, please refer to the document
[7]. In Standard Mode, it can be used to execute software debug and it can also connect to a peripheral device. Furthermore, its default baud rate is 115200bps. In Advanced Mode, it can only be used to execute software debug, capture the systems log with Cather Log tool and output the log. In this mode, its baud rate is 460800bps. M95_User_Manual Confidential / Released 42 / 85 IO Connector TXDRXDGNDPWRKEY Module (DCE) UART portTXDRXDGNDPWRKEY GSM/GPRS Module Series M95 User Manual The reference design for Debug Port is shown as below. Figure 21: Reference Design for Debug Port 3.7.3. UART Application The reference design of 3.3V level match is shown as below. If the host is a 3V system, please change the 5.6K resistor to 10K. Figure 22: Level Match Design for 3.3V System NOTE It is highly recommended to add the resistor divider circuit on the UART signal lines when the hosts level is 3V or 3.3V. For the higher voltage level system, a level shifter IC could be used between the host and the module. For more details about UART circuit design, please refer to document [8]. M95_User_Manual Confidential / Released 43 / 85 PeripheralTXDRXDGND Module DBG_TXDDBG_RXD GNDPeripheral/TXD/RXD1KTXDRXDRTSCTSDTRRI/RTS/CTSGPIOEINTGPIODCDModule1K1KVoltage level:3.3V5.6K5.6K5.6K1K1K1K1KGNDGND GSM/GPRS Module Series M95 User Manual The following circuit shows a reference design for the communication between module and PC. Since the electrical level of module is 2.8V, so a RS-232 level shifter must be used. Note that you should assure the IO voltage of level shifter which connects to module is 2.8V. Figure 23: Sketch Map for RS-232 Interface Match Please visit vendor web site to select the suitable RS-232 level shifter IC, such as: http://www.exar.com/
and http://www.maximintegrated.com. 3.8. Audio Interfaces The module provides two analogy input channels and two analogy output channels. Table 9: Pin Definition of Audio Interface Interfaces Name Pin NO. Description AIN1/AOUT1 MIC1P MIC1N SPK1P SPK1N AIN2/AOUT2 AGND 4 5 7 6 1 Channel 1 Microphone positive input Channel 1 Microphone negative input Channel 1 Audio positive output Channel 1 Audio negative output Form a pseudo-differential pair with SPK2P M95_User_Manual Confidential / Released 44 / 85 TXDRXDRTSCTSDTRRIDCDModuleGNDC1+C1-C2+C2-V+VCCGNDV-3.3VT1INT2INT3INT4INR1INR2INR3INR1OUTR2OUTR3OUTT1OUTT2OUTT5OUTT3OUTT4OUTT5INGNDGND/R1OUT123456789GNDTo PC Serial PortGND1K1K1K1K1K5.6K5.6K1K1K5.6KRS-232 Level Shifter GSM/GPRS Module Series M95 User Manual MIC2P MIC2N LOUDSPKP LOUDSPKN 2 3 9 8 Channel 2 Microphone positive input Channel 2 Microphone negative input Channel 2 Audio positive output Channel 2 Audio negative output AIN1 and AIN2 can be used for input of microphone and line. An electret microphone is usually used. AIN1 and AIN2 are both differential input channels. AOUT1 is used for output of the receiver. This channel is typically used for a receiver built into a handset. AOUT1 channel is a differential channel. If it is used as a speaker, an amplifier should be employed. AOUT2 is used for loudspeaker output as it embedded an amplifier of class AB whose maximum drive power is 870mW. AOUT2 is a differential channel. AOUT2 also can be used for output of earphone, which can be used as a single-ended channel. LOUDSPKP and AGND can establish a pseudo differential mode. All of these two audio channels support voice and ringtone output, and so on, and can be switched by AT+QAUDCH command. For more details, please refer to the document [1]. Use AT command AT+QAUDCH to select audio channel:
0--AIN1/AOUT1, the default value is 0. 1--AIN2/AOUT2, this channel is always used for earphone. 2--AIN2/AOUT2, this channel is always used for loudspeaker. For each channel, you can use AT+QMIC to adjust the input gain level of microphone. You can also use AT+CLVL to adjust the output gain level of receiver and speaker. AT+QSIDET is used to set the side-tone gain level. For more details, please refer to the document [1]. Table 10: AOUT2 Output Characteristics Item Condition Min. Type Max. Unit RMS Power 8ohm load VBAT=4.2v THD+N=1%
8ohm load VBAT=3.3v THD+N=1%
870 530 mW mW M95_User_Manual Confidential / Released 45 / 85 GSM/GPRS Module Series M95 User Manual 3.8.1. Decrease TDD Noise and Other Noise The 33pF capacitor is applied for filtering out 900MHz RF interference when the module is transmitting at EGSM900MHz. Without placing this capacitor, TDD noise could be heard. Moreover, the 10pF capacitor here is for filtering out 1800MHz RF interference. However, the resonant frequency point of a capacitor largely depends on the material and production technique. Therefore, you would have to discuss with its capacitor vendor to choose the most suitable capacitor for filtering out GSM850MHz, EGSM900MHz, DCS1800MHz and PCS1900MHz separately. The severity degree of the RF interference in the voice channel during GSM transmitting period largely depends on the application design. In some cases, EGSM900 TDD noise is more severe; while in other cases, DCS1800 TDD noise is more obvious. Therefore, you can have a choice based on test results. Sometimes, even no RF filtering capacitor is required. The capacitor which is used for filtering out RF noise should be close to audio interface. Audio alignment should be as short as possible. In order to decrease radio or other signal interference, the position of RF antenna should be kept away from audio interface and audio alignment. Power alignment and audio alignment should not be parallel, and power alignment should be far away from audio alignment. The differential audio traces have to be placed according to the differential signal layout rule. 3.8.2. Microphone Interfaces Design AIN1 and AIN2 channels come with internal bias supply for external electret microphone. A reference circuit is shown in the following figure. Figure 24: Reference Design for AIN1&AIN2 M95_User_Manual Confidential / Released 46 / 85 MICPDifferential layoutModule10pF33pF33pF33pFGNDGNDElectret MicrophoneGNDGND10pF10pFGNDGNDESDESDClose to ModuleMICNGNDGNDClose to Microphone06030603060306030603060333pF060333pF060333pF060310pF060310pF060310pF0603 GSM/GPRS Module Series M95 User Manual 3.8.3. Receiver Interface Design Figure 25: Reference Interface Design of AOUT1 3.8.4. Earphone Interface Design Figure 26: Earphone Interface Design M95_User_Manual Confidential / Released 47 / 85 SPK1PSPK1NDifferential layoutModule10pF 0603Close to speakerGNDESD 33pF 060333pF 0603GND10pF 0603ESD 10pF 060333pF 06031243Amphenol9001-8905-050MIC2P22uF68R33pFGNDGNDAGNDClose to SocketAGND33pF10pFGNDGNDGNDGNDAGNDModule4.7uFLOUDSPKPClose to ModuleGNDGND33pF33pFDifferential layout33pFMIC2N0R060306030603060306030603060310pFESDESD10pF10pF10pF060306030603 GSM/GPRS Module Series M95 User Manual 3.8.5. Loud Speaker Interface Design Figure 27: Loud Speaker Interface Design 3.8.6. Audio Characteristics Table 11: Typical Electret Microphone Characteristics Parameter Working Voltage Working Current External Microphone Load Resistance Table 12: Typical Speaker Characteristics Min. Typ. Max. Unit 1.2 200 1.5 2.2 2.0 500 V uA k Ohm Parameter Min. Typ. Max. Unit AOUT1 Output Single-ended Load resistance Ref level Differential Load resistance 0 32 32 Ohm 2.4 Vpp Ohm M95_User_Manual Confidential / Released 48 / 85 LOUDSPKN0R0RLOUDSPKP8 ohmModuleGNDGNDGNDClose to Speaker10pF33pF33pF10pF10pF33pFGNDGNDGNDDifferential layout060306030603060306030603ESDESD GSM/GPRS Module Series M95 User Manual Ref level Load resistance Reference level Load resistance Reference level Differential Single-ended 0 0 0 AOUT2 Output 3.9. PCM Interface 8 8 4.8 Vpp Load Resistance 2VBAT Vpp Load Resistance VBAT Vpp Pulse-code modulation (PCM) is a converter that changes the consecutive analog audio signal to discrete digital signal. The whole procedure of Pulse-code modulation contains sampling, quantizing and encoding. M95 supports PCM interface. It is used for digital audio transmission between the module and the device. This interface is composed of PCM_CLK, PCM_SYNC, PCM_IN and PCM_OUT signal lines. The module disables PCM interface by default. AT command AT+QPCMON is used to configure PCM interface. Table 13: Pin Definition of PCM Interface Pin NO. Pin Name Description 1)Alternate Function PCM_SYNC PCM frame synchronization output STATUS PCM_CLK PCM clock output PCM_OUT PCM data output PCM_IN PCM data input RI 12 26 41 42 NOTE 1) When using the PCM interface, STATUS pin can be used as PCM_SYNC pin, RI pin can be used as PCM_CLK pin. M95_User_Manual Confidential / Released 49 / 85 GSM/GPRS Module Series M95 User Manual 3.9.1. Configuration M95 module supports 13-bit line code PCM format. The sample rate is 8 KHz, and the clock source is 256 KHz, and the module can only act as master mode. The PCM interface supports both long and short synchronization simultaneously. Furthermore, it only supports MSB first. For detailed information, please refer to the table below. Table 14: Configuration PCM Line Interface Format Linear Data Length Sample Rate Linear: 13 bits 8KHz PCM Clock/Synchronization Source PCM master mode: clock and synchronization is generated by module PCM Synchronization Rate 8KHz PCM Clock Rate PCM master mode: 256 KHz (line) PCM Synchronization Format Long/short synchronization PCM Data Ordering MSB first Zero Padding Sign Extension 3.9.2. Timing Yes Yes The sample rate of the PCM interface is 8 KHz and the clock source is 256 KHz, so every frame contains 32 bits data, since M95 supports 16 bits line code PCM format, the left 16 bits are invalid. The following diagram shows the timing of different combinations. The synchronization length in long synchronization format can be programmed by firmware from one bit to eight bits. In the Sign extension mode, the high three bits of 16 bits are sign extension, and in the Zero padding mode, the low three bits of 16 bits are zero padding. Under zero padding mode, you can configure the PCM input and output volume by executing AT+QPCMVOL command. For more details, please refer to Chapter 3.9.4. M95_User_Manual Confidential / Released 50 / 85 GSM/GPRS Module Series M95 User Manual Figure 28: Long Synchronization & Sign Extension Diagram Figure 29: Long Synchronization & Zero Padding Diagram Figure 30: Short Synchronization & Sign Extension Diagram M95_User_Manual Confidential / Released 51 / 85 12111098765432101211109876543210PCM_CLKPCM_SYNCPCM_OUTPCM_INMSBMSBSign extensionSign extension12111098765432101211109876543210PCM_CLKPCM_SYNCPCM_OUTPCM_INMSBMSBZero paddingZero paddingPCM_CLKPCM_SYNCPCM_OUTPCM_IN12111098765432101211109876543210MSBMSBSign extensionSign extension GSM/GPRS Module Series M95 User Manual Figure 31: Short Synchronization & Zero Padding Diagram 3.9.3. Reference Design M95 can only work as a master, providing synchronization and clock source. The reference design is shown as below. Figure 32: Reference Design for PCM 3.9.4. AT Command There are two AT commands about the configuration of PCM, listed as below. AT+QPCMON can configure operating mode of PCM. AT+QPCMON=mode, Sync_Type, Sync_Length, SignExtension, MSBFirst. M95_User_Manual Confidential / Released 52 / 85 PCM_CLKPCM_SYNCPCM_OUTPCM_IN12111098765432101211109876543210MSBMSBZero paddingZero paddingPCM_SYNCPCM_CLKPCM_OUTPCM_INPCM_SYNCPCM_CLKPCM_INPCM_OUTModule(Master)Peripheral(Slave) GSM/GPRS Module Series M95 User Manual Table 15: QPCMON Command Description Parameter Scope Description Mode 0~2 Sync_Type 0~1 0: Close PCM 1: Open PCM 2: Open PCM when audio talk is set up 0: Short synchronization 1: Long synchronization Sync_Length 1~8 Programmed from one bit to eight bit SignExtension 0~1 MSBFirst 0~1 0: Zero padding 1: Sign extension 0: MSB first 1: Not support AT+QPCMVOL can configure the volume of input and output. AT+QPCMVOL=vol_pcm_in, vol_pcm_out Table 16: QPCMVOL Command Description Parameter Scope Description vol_pcm_in 0~32767 Set the input volume vol_pcm_out 0~32767 Set the output volume The voice may be distorted when this value exceeds 16384. 3.10. SIM Card Interfaces The module contains two smart interfaces to allow module access to the two SIM cards. These two SIM interfaces share the same ground and only SIM1 interface has card inserted detection. Only one SIM card can work at a time. For more details, please refer to the document [6]. 3.10.1. SIM Card Application The SIM interfaces supports the functionality of the GSM Phase 1 specification and also supports the functionality of the new GSM Phase 2+ specification for FAST 64 kbps SIM card, which is intended for use with a SIM application Tool-kit. M95_User_Manual Confidential / Released 53 / 85 GSM/GPRS Module Series M95 User Manual The SIM interfaces are powered by an internal regulator in the module. Both 1.8V and 3.0V SIM Cards are supported. Table 17: Pin Definition of the SIM Interfaces Pin NO. Name Description 1)Alternate Function SIM1_VDD SIM1 card voltage. 3.0V5% and 1.8V5%. Supply power for SIM1 card. Automatic detection of Maximum supply current is around 10mA. SIM1_CLK SIM1 card clock. SIM1_DATA SIM1 card data I/O. SIM1_RST SIM1 card reset. SIM1_PRESENCE SIM1 card detection. DTR SIM_GND SIM card ground. SIM2_VDD SIM2 card voltage. 3.0V5% and 1.8V5%. Supply power for SIM2 card. Automatic detection of Maximum supply current is around 10mA. SIM2_CLK SIM2 card clock. SIM2_DATA SIM2 card data I/O. SIM2_RST SIM2 card reset. DCD 27 30 29 28 20 31 18 17 16 25 NOTE 1) If several interfaces share the same I/O pin, to avoid conflict between these alternate functions, only one peripheral should be enabled at a time. M95_User_Manual Confidential / Released 54 / 85 GSM/GPRS Module Series M95 User Manual The following figure is the reference design for SIM1 interface. Figure 33: Reference Circuit for SIM1 Interface with 8-pin SIM Card Holder If SIM1 card detection function is not used, keep SIM1_PRESENCE pin open. The reference circuit for a 6-pin SIM card socket is illustrated as the following figure. Figure 34: Reference Circuit for SIM1 Interface with the 6-pin SIM Card Holder M95_User_Manual Confidential / Released 55 / 85 VDD_EXTModuleSIM1_VDDSIM_GNDSIM1_RSTSIM1_CLKSIM1_DATASIM1_PRESENCE22R22R22R10K100nFSIM_HolderGNDGNDTVS33pF33pF33pF33pFVCCRSTCLKIOVPPGNDGNDModuleSIM1_VDDSIM_GNDSIM1_RSTSIM1_CLKSIM1_DATASIM1_PRESENCE22R22R22R100nFSIM_HolderGNDTVS33pF33pF33pFVCCRSTCLKIOVPPGNDGND33pF GSM/GPRS Module Series M95 User Manual The following figure is the reference design for SIM2 interface with the 6-pin SIM card holder. Figure 35: Reference Circuit for SIM2 Interface with the 6-pin SIM Card Holder For more information of SIM card holder, you can visit http://www.amphenol.com and http://www.molex.com. In order to enhance the reliability and availability of the SIM card in application. Please follow the below criteria in the SIM circuit design. Keep layout of SIM card as close as possible to the module. Assure the possibility of the length of the trace is less than 200mm. Keep SIM card signal away from RF and VBAT alignment. Assure the ground between module and SIM cassette short and wide. Keep the width of ground no less than 0.5mm to maintain the same electric potential. The decouple capacitor of SIM_VDD is less than 1uF and must be near to SIM cassette. To avoid cross talk between SIM_DATA and SIM_CLK. Keep them away with each other and shield them with surrounded ground In order to offer good ESD protection, it is recommended to add a TVS diode array. For more information of TVS diode, you can visit http://www.onsemi.com/. The most important rule is to place your ESD protection device close to the SIM card socket and make sure the net being protected will go through the ESD device first and then lead to module. The 22 resistors should be connected in series between the module and the SIM card so as to suppress the EMI spurious transmission and enhance the ESD protection. Please to be noted that the SIM peripheral circuit should be close to the SIM card socket. Place the RF bypass capacitors (33pF) close to the SIM card on all signals line for improving EMI. M95_User_Manual Confidential / Released 56 / 85 ModuleSIM2_VDDSIM_GNDSIM2_RSTSIM2_CLKSIM2_DATA22R22R22R100nFSIM_HolderGNDTVS33pF33pF33pFVCCRSTCLKIOVPPGNDGND33pF GSM/GPRS Module Series M95 User Manual 3.11. Behaviors of The RI When using PCM interface, RI pin can be used as PCM_CLK. Table 18: Behaviors of the RI State RI Response Standby HIGH Change to LOW, then:
1. Change to HIGH when call is established. 2. Use ATH to hang up the call, RI changes to HIGH. 3. Calling part hangs up, RI changes to HIGH first, and changes to LOW for 120ms indicating NO CARRIER as an URC, then changes to HIGH again. 4. Change to HIGH when SMS is received. When a new SMS comes, the RI changes to LOW and holds low level for about 120ms, then changes to HIGH. Certain URCs can trigger 120ms low level on RI. For more details, please refer to the document [1]. Voice Calling SMS URC NOTE If URC of SMS is disabled, the RI will not change. If the module is used as a caller, the RI would maintain high except the URC or SMS is received. On the other hand, when it is used as a receiver, the timing of the RI is shown as below. Figure 36: RI Behavior of Voice Calling as a Receiver M95_User_Manual Confidential / Released 57 / 85 RIIdleRingOff-hook byATAOn-hook by ATHHIGHLOW GSM/GPRS Module Series M95 User Manual Figure 37: RI Behavior as a Caller Figure 38: RI Behavior of URC or SMS Received 3.12. Network Status Indication The NETLIGHT signal can be used to drive a network status indicator LED. The working state of this pin is listed in the following table. Table 19: Working State of the NETLIGHT State Off Module Function The module is not running. 64ms On/800ms Off The module is not synchronized with network. 64ms On/2000ms Off The module is synchronized with network. 64ms On/600ms Off The GPRS data transmission after dialing the PPP connection. M95_User_Manual Confidential / Released 58 / 85 RIIdleCallingOn-hookTalkingHIGHLOWIdleRIIdle or Talking URC or SMS received HIGHLOW120ms GSM/GPRS Module Series M95 User Manual A reference circuit is shown as below. Figure 39: Reference Design for NETLIGHT 3.13. Operating Status Indication The STATUS pin will output a high level after the module being turned on. but it is not recommended connecting this pin to a MCUs GPIO to judge whether the module is turn-on or not. The following LED indicator circuit for STATUS pin can be used to indicate the state after the module has been turned on. Table 20: Pin Definition of the STATUS Name Pin Description 1)Alternate Function STATUS 12 Indicate module operating status PCM_SYNC NOTE 1) When using PCM interface, STATUS pin can be used as PCM_SYNC. M95_User_Manual Confidential / Released 59 / 85 ModuleNETLIGHT4.7K47K300RVBAT GSM/GPRS Module Series M95 User Manual Figure 40: Reference Design for STATUS M95_User_Manual Confidential / Released 60 / 85 ModuleSTATUS4.7K47K300RVBAT GSM/GPRS Module Series M95 User Manual 4 Antenna Interface The Pin 39 is the RF antenna pad. The RF interface has an impedance of 50. Table 21: Pin Definition of the RF_ANT Name GND GND RF_ANT GND Pin 37 38 39 40 Description Ground Ground RF antenna pad Ground 4.1. RF Reference Design The reference design for RF is shown as below. Figure 41: Reference Design for RF M95 provides an RF antenna pad for antenna connection. The RF trace in host PCB connected to the module RF antenna pad should be coplanar waveguide line or microstrip line, whose characteristic impedance should be close to 50. M95 comes with grounding pads which are next to the antenna pad in M95_User_Manual Confidential / Released 61 / 85 ModuleRF_ANT0RNMNM GSM/GPRS Module Series M95 User Manual order to give a better grounding. Besides, a -type match circuit is suggested to be used to adjust the RF performance. 4.2. RF Output Power Table 22: The Module Conducted RF Output Power Frequency Max. Min. GSM850 EGSM900 DCS1800 PCS1900 NOTE 33dBm2dB 33dBm2dB 30dBm2dB 30dBm2dB 5dBm5dB 5dBm5dB 0dBm5dB 0dBm5dB In GPRS 4 slots TX mode, the max output power is reduced by 2.5dB. This design conforms to the GSM specification as described in section 13.16 of 3GPP TS 51.010-1. 4.3. RF Receiving Sensitivity Table 23: The Module Conducted RF Receiving Sensitivity Frequency Receive Sensitivity GSM850 EGSM900 DCS1800 PCS1900
< -109dBm
< -109dBm
< -109dBm
< -109dBm M95_User_Manual Confidential / Released 62 / 85 GSM/GPRS Module Series M95 User Manual 4.4. Operating Frequencies Table 24: The Module Operating Frequencies Frequency Receive Transmit ARFCH GSM850 869~894MHz 824~849MHz 128~251 EGSM900 925~960MHz 880~915MHz 0~124, 975~1023 DCS1800 1805~1880MHz 1710~1785MHz 512~885 PCS1900 1930~1990MHz 1850~1910MHz 512~810 4.5. Antenna Requirement The following table shows the requirement on GSM antenna. Table 25: Antenna Cable Requirements Type Requirements GSM850/EGSM900 Cable insertion loss <1dB DCS1800/PCS1900 Cable insertion loss <1.5dB Table 26: Antenna Requirements Type Requirements Frequency Range GSM850/EGSM900/DCS1800/PCS1900MHz. VSWR Gain (dBi) Max Input Power (W) Input Impedance () 2 1 50 50 Polarization Type Vertical M95_User_Manual Confidential / Released 63 / 85 GSM/GPRS Module Series M95 User Manual 4.6. RF Cable Soldering Soldering the RF cable to RF pad of module correctly will reduce the loss on the path of RF, please refer to the following example of RF soldering. Figure 42: RF Soldering Sample M95_User_Manual Confidential / Released 64 / 85 GSM/GPRS Module Series M95 User Manual 5 Electrical, Reliability and Radio Characteristics 5.1. Absolute Maximum Ratings Absolute maximum ratings for power supply and voltage on digital and analog pins of module are listed in the following table:
Table 27: Absolute Maximum Ratings Parameter VBAT Peak Current of Power Supply Min.
-0.3 0 RMS Current of Power Supply (during one TDMA- frame) 0 Voltage at Digital Pins Voltage at Analog Pins
-0.3
-0.3 Voltage at Digital/analog Pins in Power Down Mode
-0.25 5.2. Operating Temperature The operating temperature is listed in the following table:
Table 28: Operating Temperature Max. Unit
+4.73 2 0.7 3.08 3.08 0.25 V A A V V V Parameter Normal Temperature Min.
-35 Typ.
+25 Max.
+80 Unit M95_User_Manual Confidential / Released 65 / 85 GSM/GPRS Module Series M95 User Manual
+80 ~ +85
+90 Restricted Operation1)
-40 ~ -35 Storage Temperature
-45 NOTE 1) When the module works within this temperature range, the deviation from the GSM specification may occur. For example, the frequency error or the phase error will be increased. 5.3. Power Supply Ratings Table 29: The Module Power Supply Ratings Parameter Description Conditions Min. Typ. Max. Unit Supply voltage VBAT Voltage drop Voltage must stay within the min/max values, including voltage drop, ripple, and spikes. during Maximum power control level transmitting on GSM850 and EGSM900. burst IVBAT Power down mode SLEEP mode @DRX=5 Minimum functionality mode AT+CFUN=0 IDLE mode SLEEP mode AT+CFUN=4 IDLE mode Average supply SLEEP mode current TALK mode GSM850/EGSM9001) DCS1800/PCS19002) DATA mode, GPRS (3Rx,2Tx) GSM850/EGSM9001) DCS1800/PCS19002) DATA mode, GPRS(2 Rx,3Tx) GSM850/EGSM9001) DCS1800/PCS19002) 3.3 4.0 4.6 V 400 mV 150 1.3 13 0.98 13 1.0 223/219 153/151 363/393 268/257 506/546 366/349 uA mA mA mA mA mA mA mA mA mA mA mA M95_User_Manual Confidential / Released 66 / 85 GSM/GPRS Module Series M95 User Manual DATA mode, GPRS (4Rx,1Tx) GSM850/EGSM9001) DCS1800/PCS19002) DATA mode, GPRS (1Rx,4Tx) GSM850/EGSM9001) DCS1800/PCS19002) Peak supply current (during Maximum power control level transmission on GSM850 and EGSM900. 217/234 172/170 458/485 462/439 mA mA mA mA 1.6 2 A slot) NOTE 1. 1) Power control level PCL 5. 2) Power control level PCL 0. 2. 3. Under the EGSM900 spectrumthe power of 1Rx and 4Tx has been reduced. 5.4. Current Consumption The values of current consumption are shown as below. Table 30: The Module Current Consumption Condition Current Consumption Voice Call GSM850
@power level #5 <300mA, Typical 223mA
@power level #12, Typical 83mA
@power level #19, Typical 62mA
@power level #5 <300mA, Typical 219mA EGSM900
@power level #12, Typical 83mA
@power level #19, Typical 63mA
@power level #0 <250mA, Typical 153mA DCS1800
@power level #7, Typical 73mA
@power level #15, Typical 60mA
@power level #0 <250mA, Typical 151mA PCS1900
@power level #7, Typical 76mA
@power level #15, Typical 61mA GPRS Data M95_User_Manual Confidential / Released 67 / 85 GSM/GPRS Module Series M95 User Manual DATA Mode, GPRS ( 3 Rx, 2Tx ) CLASS 10 GSM850
@power level #12, Typical 131mA
@power level #5 <550mA, Typical 363mA
@power level #19, Typical 91mA
@power level #5 <550mA, Typical 393mA EGSM900
@power level #12, Typical 132mA DCS1800 PCS1900
@power level #19, Typical 92mA
@power level #0 <450mA, Typical 268mA
@power level #7, Typical 112mA
@power level #15, Typical 88mA
@power level #0 <450mA, Typical 257mA
@power level #7, Typical 119mA
@power level #15, Typical 89mA DATA Mode, GPRS ( 4 Rx,1Tx ) CLASS 10 GSM850
@power level #12, Typical 103mA
@power level #5 <350mA, Typical 216mA
@power level #19, Typical 83mA
@power level #5 <350mA, Typical 233mA EGSM900
@power level #12, Typical 104mA
@power level #19, Typical 84mA
@power level #0 <300mA, Typical 171mA DCS1800
@power level #7, Typical 96mA
@power level #15, Typical 82mA
@power level #0 <300mA, Typical 169mA PCS1900
@power level #7, Typical 98mA
@power level #15, Typical 83mA NOTE GPRS Class 10 is the default setting. The module can be configured from GPRS Class 1 to Class 10. Setting to lower GPRS class would make it easier to design the power supply for the module. 5.5. Electro-static Discharge Although the GSM engine is generally protected against Electro-static Discharge (ESD), ESD protection precautions should still be emphasized. Proper ESD handling and packaging procedures must be applied throughout the processing, handling and operation of any applications using the module. The measured ESD values of module are shown as the following table:
M95_User_Manual Confidential / Released 68 / 85 GSM/GPRS Module Series M95 User Manual Table 31: The ESD Endurance (Temperature: 25C, Humidity: 45%) Tested Point Contact Discharge Air Discharge VBAT,GND RF_ANT TXD, RXD Others 5KV 5KV 2KV 0.5KV 10KV 10KV 4KV 1KV M95_User_Manual Confidential / Released 69 / 85 GSM/GPRS Module Series M95 User Manual 6 Mechanical Dimensions This chapter describes the mechanical dimensions of the module. 6.1. Mechanical Dimensions of Module Figure 43: M95 Module Top and Side Dimensions (Unit: mm) M95_User_Manual Confidential / Released 70 / 85 GSM/GPRS Module Series M95 User Manual Figure 44: M95 Module Bottom Dimensions (Unit: mm) M95_User_Manual Confidential / Released 71 / 85 1 GSM/GPRS Module Series M95 User Manual 6.2. Recommended Footprint Figure 45: Recommended Footprint (Unit: mm) NOTE The module should keep about 3mm away from other components in the host PCB. M95_User_Manual Confidential / Released 72 / 85 frame lineBBAAframe lineSilksreenSilksreen GSM/GPRS Module Series M95 User Manual 6.3. Top View of the Module Figure 46: Top View of the Module 6.4. Bottom View of the Module Figure 47: Bottom View of the Module M95_User_Manual Confidential / Released 73 / 85 GSM/GPRS Module Series M95 User Manual 7 Storage and Manufacturing 7.1. Storage M95 module is distributed in a vacuum-sealed bag. The restriction for storage is shown as below. Shelf life in the vacuum-sealed bag: 12 months at environments of <40C temperature and <90%RH. After the vacuum-sealed bag is opened, devices that need to be mounted directly must be:
Mounted within 72 hours at the factory environment of 30C temperature and <60% RH. Stored at <10% RH. Devices require baking before mounting, if any circumstance below occurs. When the ambient temperature is 23C5C, humidity indication card shows the humidity is >10%
before opening the vacuum-sealed bag. If ambient temperature is <30C and the humidity is <60%, the devices have not been mounted during 72hours. Stored at >10% RH. If baking is required, devices should be baked for 48 hours at 125C5C. NOTE As plastic container cannot be subjected to high temperature, devices must be removed prior to high temperature (125C) bake. If shorter bake times are desired, refer to the IPC/JEDECJ-STD-033 for bake procedure. 7.2. Soldering M95_User_Manual Confidential / Released 74 / 85 GSM/GPRS Module Series M95 User Manual The squeegee should push the paste on the surface of the stencil that makes the paste fill the stencil openings and penetrate to the PCB. The force on the squeegee should be adjusted so as to produce a clean stencil surface on a single pass. To ensure the module soldering quality, the thickness of stencil at the hole of the module pads should be 0.2 mm for M95. For more details, please refer to document [5]. It is suggested that peak reflow temperature is from 235C to 245C (for SnAg3.0Cu0.5 alloy). Absolute max reflow temperature is 260C. To avoid damage to the module when it was repeatedly heated, it is suggested that the module should be mounted after the first panel has been reflowed. The following picture is the actual diagram which we have operated. Figure 48: Ramp-Soak-Spike Reflow Profile 7.3. Packaging The modules are stored inside a vacuum-sealed bag which is ESD protected. It should not be opened until the devices are ready to be soldered onto the application. 7.3.1. Tape and Reel Packaging The reel is 330mm in diameter and each reel contains 250 modules. M95_User_Manual Confidential / Released 75 / 85 Time(s)5010015020025030050100150200250 160 200217070s~120s40s~60sBetween 1~3/SPreheatHeatingCoolingsLiquids Temperature GSM/GPRS Module Series M95 User Manual Figure 49: Tape and Reel Specification M95_User_Manual Confidential / Released 76 / 85 GSM/GPRS Module Series M95 User Manual Figure 50: Dimensions of Reel Table 32: Reel Packing Model Name MOQ for MP Minimum Package: 250pcs Minimum Package4=1000pcs M95 250pcs Size: 370 350 56mm3 N.W: 0.63kg Size: 380 250 365mm3 N.W: 2.5kg G.W: 1.47kg G.W: 6.4kg M95_User_Manual Confidential / Released 77 / 85 PS6DETAIL:ADETAIL:A GSM/GPRS Module Series M95 User Manual 8 Appendix A Reference Table 33: Related Documents SN Document Name Remark
[1]
Quectel_M95_AT_Commands_Manual AT commands manual
[2]
ITU-T Draft new recommendation V.25ter Serial asynchronous automatic dialing and control
[3]
GSM_UART_Application_Note UART port application note
[4]
GSM_EVB_User_Guide GSM EVB user guide
[5]
Module_Secondary_SMT_User_Guide Module secondary SMT user guide
[6]
M95_Dual_SIM_Application_Notes_V3.0 M95 Dual SIM Application Notes
[7]
GSM_Multi_UART_Application_Note M95 Multi UART Application Notes
[8]
Quectel_GSM_Module_Digital_IO_Application_Note GSM module digital IO application note
[9]
GSM 07.07 Digital cellular telecommunications (Phase 2+); AT command set for GSM Mobile Equipment (ME)
[10] GSM 07.10 Support GSM 07.10 multiplexing protocol
[11] GSM 07.05
[12] GSM 11.14
[13] GSM 11.11 Digital cellular telecommunications (Phase 2+); Use of Data Terminal Equipment Data Circuit terminating Equipment (DTE DCE) interface for Short Message Service
(SMS) and Cell Broadcast Service (CBS) Digital cellular telecommunications (Phase 2+); Specification of the SIM Application Toolkit for the Subscriber Identity module Mobile Equipment (SIM ME) interface Digital cellular telecommunications (Phase 2+); Specification of the Subscriber Identity module Mobile Equipment (SIM ME) interface M95_User_Manual Confidential / Released 78 / 85 GSM/GPRS Module Series M95 User Manual
[14] GSM 03.38
[15] GSM 11.10 Digital cellular telecommunications (Phase 2+); Alphabets and language-specific information Digital cellular telecommunications (Phase 2); Mobile Station
(MS) conformance specification; Part 1: Conformance specification Table 34: Terms and Abbreviations Abbreviation Description ADC AMR ARP Analog-to-Digital Converter Adaptive Multi-Rate Antenna Reference Point ASIC Application Specific Integrated Circuit BER BOM BTS Bit Error Rate Bill of Material Base Transceiver Station CHAP Challenge Handshake Authentication Protocol CS CSD CTS DAC DRX DSP DCE DTE DTR DTX Coding Scheme Circuit Switched Data Clear To Send Digital-to-Analog Converter Discontinuous Reception Digital Signal Processor Data Communications Equipment (typically module) Data Terminal Equipment (typically computer, external controller) Data Terminal Ready Discontinuous Transmission M95_User_Manual Confidential / Released 79 / 85 GSM/GPRS Module Series M95 User Manual EFR Enhanced Full Rate EGSM Enhanced GSM EMC Electromagnetic Compatibility ESD ETS FCC Electrostatic Discharge European Telecommunication Standard Federal Communications Commission (U.S.) FDMA Frequency Division Multiple Access FR Full Rate GMSK Gaussian Minimum Shift Keying GPRS General Packet Radio Service GSM Global System for Mobile Communications G.W HR I/O IC IMEI Imax Inorm kbps LED Li-Ion MO MOQ MP MS Gross Weight Half Rate Input/Output Integrated Circuit International Mobile Equipment Identity Maximum Load Current Normal Current Kilo Bits Per Second Light Emitting Diode Lithium-Ion Mobile Originated Minimum Order Quantity Manufacture Product Mobile Station (GSM engine) M95_User_Manual Confidential / Released 80 / 85 GSM/GPRS Module Series M95 User Manual MT N.W Mobile Terminated Net Weight PAP Password Authentication Protocol PBCCH Packet Switched Broadcast Control Channel PCB PDU PPP RF RMS RTC RX SIM Printed Circuit Board Protocol Data Unit Point-to-Point Protocol Radio Frequency Root Mean Square (value) Real Time Clock Receive Direction Subscriber Identification Module SMS Short Message Service TDMA Time Division Multiple Access TE TX UART URC Terminal Equipment Transmitting Direction Universal Asynchronous Receiver & Transmitter Unsolicited Result Code USSD Unstructured Supplementary Service Data VSWR Voltage Standing Wave Ratio Vmax Maximum Voltage Value Vnorm Normal Voltage Value Vmin Minimum Voltage Value VIHmax Maximum Input High Level Voltage Value VIHmin Minimum Input High Level Voltage Value M95_User_Manual Confidential / Released 81 / 85 GSM/GPRS Module Series M95 User Manual VILmax Maximum Input Low Level Voltage Value VILmin Minimum Input Low Level Voltage Value VImax Absolute Maximum Input Voltage Value VImin Absolute Minimum Input Voltage Value VOHmax Maximum Output High Level Voltage Value VOHmin Minimum Output High Level Voltage Value VOLmax Maximum Output Low Level Voltage Value VOLmin Minimum Output Low Level Voltage Value Phonebook Abbreviations LD MC ON RC SM SIM Last Dialing phonebook (list of numbers most recently dialed) Mobile Equipment list of unanswered MT Calls (missed calls) SIM (or ME) Own Numbers (MSISDNs) list Mobile Equipment list of Received Calls SIM phonebook M95_User_Manual Confidential / Released 82 / 85 GSM/GPRS Module Series M95 User Manual 9 Appendix B GPRS Coding Scheme Four coding schemes are used in GPRS protocol. The differences between them are shown in the following table. Table 35: Description of Different Coding Schemes Scheme Code Rate USF Pre-coded USF CS-1 1/2 CS-2 2/3 CS-3 3/4 CS-4 1 3 3 3 3 3 6 6 12 BCS 181 268 312 428 Radio Block excl.USF and BCS Tail Coded Punctured Bits Bits 40 16 16 16 4 4 4
-
456 0 588 132 676 220 456
-
Data Rate Kb/s 9.05 13.4 15.6 21.4 Radio block structure of CS-1, CS-2 and CS-3 is shown as the figure below. Radio Block USF BCS Rate 1/2 convolutional coding Puncturing 456 bits Figure 51: Radio Block Structure of CS-1, CS-2 and CS-3 M95_User_Manual Confidential / Released 83 / 85 GSM/GPRS Module Series M95 User Manual Radio block structure of CS-4 is shown as the following figure. USF Block Code Radio Block No coding 456 bits BCS Figure 52: Radio Block Structure of CS-4 M95_User_Manual Confidential / Released 84 / 85 GSM/GPRS Module Series M95 User Manual 10 Appendix C GPRS Multi-slot Class Twenty-nine classes of GPRS multi-slot modes are defined for MS in GPRS specification. Multi-slot classes are product dependant, and determine the maximum achievable data rates in both the uplink and downlink directions. Written as 3+1 or 2+2, the first number indicates the amount of downlink timeslots, while the second number indicates the amount of uplink timeslots. The active slots determine the total number of slots the GPRS device can use simultaneously for both uplink and downlink communications. The description of different multi-slot classes is shown in the following table. Table 36: GPRS Multi-slot Classes Multislot Class Downlink Slots Uplink Slots Active Slots 1 2 3 4 5 6 8 9 10 1 2 2 3 2 3 4 3 4 1 1 2 1 2 2 1 2 2 2 3 3 4 4 4 5 5 5 M95_User_Manual Confidential / Released 85 / 85
frequency | equipment class | purpose | ||
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1 | 2016-01-15 | 1850.2 ~ 1909.8 | PCB - PCS Licensed Transmitter | Original Equipment |
app s | Applicant Information | |||||
---|---|---|---|---|---|---|
1 | Effective |
2016-01-15
|
||||
1 | Applicant's complete, legal business name |
Quectel Wireless Solutions Company Limited
|
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1 | FCC Registration Number (FRN) |
0018988279
|
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1 | Physical Address |
Building 5, Shanghai Business Park PhaseIII
|
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1 |
Shanghai, N/A 200233
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|||||
1 |
China
|
|||||
app s | TCB Information | |||||
1 | TCB Application Email Address |
t******@siemic.com
|
||||
1 | TCB Scope |
B1: Commercial mobile radio services equipment in the following 47 CFR Parts 20, 22 (cellular), 24,25 (below 3 GHz) & 27
|
||||
app s | FCC ID | |||||
1 | Grantee Code |
XMR
|
||||
1 | Equipment Product Code |
201512M95
|
||||
app s | Person at the applicant's address to receive grant or for contact | |||||
1 | Name |
J****** x****
|
||||
1 | Telephone Number |
+8602******** Extension:
|
||||
1 | Fax Number |
+8621********
|
||||
1 |
j******@quectel.com
|
|||||
app s | Technical Contact | |||||
n/a | ||||||
app s | Non Technical Contact | |||||
n/a | ||||||
app s | Confidentiality (long or short term) | |||||
1 | Does this application include a request for confidentiality for any portion(s) of the data contained in this application pursuant to 47 CFR § 0.459 of the Commission Rules?: | Yes | ||||
1 | Long-Term Confidentiality Does this application include a request for confidentiality for any portion(s) of the data contained in this application pursuant to 47 CFR § 0.459 of the Commission Rules?: | No | ||||
if no date is supplied, the release date will be set to 45 calendar days past the date of grant. | ||||||
app s | Cognitive Radio & Software Defined Radio, Class, etc | |||||
1 | Is this application for software defined/cognitive radio authorization? | No | ||||
1 | Equipment Class | PCB - PCS Licensed Transmitter | ||||
1 | Description of product as it is marketed: (NOTE: This text will appear below the equipment class on the grant) | GSM/GPRS Module | ||||
1 | Related OET KnowledgeDataBase Inquiry: Is there a KDB inquiry associated with this application? | No | ||||
1 | Modular Equipment Type | Single Modular Approval | ||||
1 | Purpose / Application is for | Original Equipment | ||||
1 | Composite Equipment: Is the equipment in this application a composite device subject to an additional equipment authorization? | No | ||||
1 | Related Equipment: Is the equipment in this application part of a system that operates with, or is marketed with, another device that requires an equipment authorization? | No | ||||
1 | Grant Comments | Single Modular approval for fixed and mobile host platform. Power listed is the maximum conducted output power for Part 22 and Part 24. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter, except in accordance with FCC multi-transmitter product procedures. OEM and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. Maximum antenna gain allowed for use with this device is 4.95dBi (850MHz ) , 2.5dBi (1900MHz) | ||||
1 | Is there an equipment authorization waiver associated with this application? | No | ||||
1 | If there is an equipment authorization waiver associated with this application, has the associated waiver been approved and all information uploaded? | No | ||||
app s | Test Firm Name and Contact Information | |||||
1 | Firm Name |
SIEMIC (Shenzhen-China) Laboratories
|
||||
1 | Name |
L******** B******
|
||||
1 | Telephone Number |
86-07******** Extension:
|
||||
1 | Fax Number |
86075********
|
||||
1 |
l******@siemic.com
|
|||||
Equipment Specifications | |||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Line | Rule Parts | Grant Notes | Lower Frequency | Upper Frequency | Power Output | Tolerance | Emission Designator | Microprocessor Number | |||||||||||||||||||||||||||||||||
1 | 1 | 22H | 824.2 | 848.8 | 1.614 | 0.0287 ppm | 421KGXW | ||||||||||||||||||||||||||||||||||
1 | 2 | 24E | 1850.2 | 1909.8 | 0.836 | 0.0149 ppm | 361KGXW |
some individual PII (Personally Identifiable Information) available on the public forms may be redacted, original source may include additional details
This product uses the FCC Data API but is not endorsed or certified by the FCC