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SIM Tech SIMCom SIM868 Series Hardware Design

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  • Page 1 SIM868_Series_Hardware_Design_V1.06...
  • Page 2 Smart Machine Smart Decision Document Title SIM868 Series Hardware Design Version V1.06 Date 2017-07-13 Status Release Document Control ID SIM868_Series_Hardware_Design_V1.06 General Notes SIMCom offers this information as a service to its customers, to support application and engineering efforts that use the products designed by SIMCom. The information provided is based upon requirements specifically provided to SIMCom by the customers.

  • Page 3: Table Of Contents

    Smart Machine Smart Decision Contents Introduction ......................10 SIM868 Overview ....................10 2.1. SIM868 Key Features ......................11 2.2. Operating Modes ......................... 14 2.3. Functional Diagram......................15 Package Information ..................16 3.1. Pin Out Diagram ......................... 16 3.2. Pin Description ........................17 3.3.
  • Page 4 Smart Machine Smart Decision 5.12. Network Status Indication ....................42 5.13. Operating Status Indication ....................42 5.14. RF Synchronization Signal ....................43 5.15. Antenna Interface of GSM ....................43 5.16. Bluetooth Antenna Interface ....................45 5.17. Bluetooth Low Energy (BLE) ..................... 45 Application Interface of GNSS .................
  • Page 5 Smart Machine Smart Decision 8.9.3. Module Operating Frequencies ......................62 Manufacturing ....................63 9.1. Top and Bottom View of SIM868 ..................63 9.2. Typical Solder Reflow Profile ..................... 63 9.3. The Moisture Sensitivity Level ................... 64 9.4. Baking Requirements ......................64 Packaging ......................
  • Page 6 Smart Machine Smart Decision Table Index TABLE 1: KEY FEATURES OF GSM PART ........................11 TABLE 2: CODING SCHEMES AND MAXIMUM NET DATA RATES OVER AIR INTERFACE ......12 TABLE 3: KEY FEATURES OF GNSS PART ........................ 12 TABLE 4: OVERVIEW OF GSM OPERATING MODES ....................14 TABLE 5: OVERVIEW OF GNSS OPERATING MODES .....................
  • Page 7 Smart Machine Smart Decision TABLE 46: MOISTURE SENSITIVITY LEVEL AND FLOOR LIFE ................64 TABLE 47: BAKING REQUIREMENTS ........................64 TABLE 48: TRAY SIZE ..............................65 TABLE 49: SMALL CARTON SIZE ..........................66 TABLE 50: BIG CARTON SIZE ............................. 66 TABLE 51: RELATED DOCUMENTS ...........................
  • Page 8 Smart Machine Smart Decision Figure Index FIGURE 1: SIM868 BLOCK DIAGRAM ........................15 FIGURE 2: PIN OUT DIAGRAM (TOP VIEW) ......................16 FIGURE 3: DIMENSIONS OF SIM868 (UNIT: MM) ....................19 FIGURE 4: RECOMMENDED PCB FOOTPRINT OUTLINE ..................20 FIGURE 5: RECOMMENDED SMT STENCIL FOOTPRINT OUTLINE ..............21 FIGURE 6: ALL-IN-ONE MODE DIAGRAM........................
  • Page 9 Smart Machine Smart Decision FIGURE 47: CONNECTION FOR SOFTWARE UPGRADING IN ALL-IN-ONE MODE........... 50 FIGURE 48: 1PPS APPLICATION CIRCUIT ......................... 51 FIGURE 49: GNSS PASSIVE ANTENNA MATCHING CIRCUIT ................51 FIGURE 50: GNSS ACTIVE ANTENNA MATCHING CIRCUIT ................. 52 FIGURE 51: PIN ASSIGNMENT ............................ 56 FIGURE 52: TOP AND BOTTOM VIEW OF SIM868 ....................
  • Page 10 Smart Machine Smart Decision Version History Date Version Description of change Author Yanwu.Wang; 2016-06-20 1.00 Origin Xiaoxu.Chen Update figure 1 Add voltage range of GPS_VBAT Add voltage range of VRTC Add voltage range of GNSS_EN Add Recommenced SMT stencil footprint Yanwu.Wang;...

  • Page 11: Introduction

    Smart Machine Smart Decision 1. Introduction This document defines the SIM868 series module and describes its hardware interface in great detail. The SIM868 series module includes two variants (SIM868 and SIM868E) currently. Both of them have the same function except BLE, which is particular for SIM868E. SIM868 series is hereinafter uniformly referred to as the SIM868 except in BT chapters.

  • Page 12: Sim868 Key Features

    Smart Machine Smart Decision 2.1. SIM868 Key Features Table 1: Key Features of GSM Part Feature Implementation Power supply 3.4V ~4.4V Power saving Typical power consumption in sleep mode is 0.65mA (AT+CFUN=0) Quad-band: GSM 850, EGSM 900, DCS 1800, PCS 1900. SIM868 can search ...
  • Page 13 Smart Machine Smart Decision Can be used for debugging and upgrading firmware  Phonebook management Support phonebook types: SM, FD, LD, RC, ON, MC. SIM application toolkit GSM 11.14 Release 99 Size:17.6*15.7*2.3mm  Physical characteristics Weight:1.5g  Firmware upgrade Full modem serial port or USB interface Table 2: Coding schemes and maximum net data rates over air interface Coding scheme 1 timeslot...
  • Page 14 Smart Machine Smart Decision Cold start 13.6 Autonomous -149 acquisition(cold start) Sensitivity with GPS only mode Re-acquisition -161 Tracking -167 Autonomous -147 acquisition(cold start) Sensitivity with GLONASS only mode Re-acquisition -155 Tracking -160 Autonomous -149 acquisition(cold start) Sensitivity with GPS and GLONASS Re-acquisition -161...

  • Page 15: Operating Modes

    Smart Machine Smart Decision Acquisition 31.2 Continuous tracking 25.8 GLP current Power consumption With GPS and BD Sleep current Stop current Backup current (1) 50% 24hr static, -130dBm (2) 50% at 30m/s (3) GPS signal level: -130dBm (4) Single Power supply 3V@-130dBm 2.2.

  • Page 16: Functional Diagram

    Smart Machine Smart Decision Table 5: Overview of GNSS operating modes Mode GPS_VBAT GNSS_EN VRTC Main clock RTC clock Full on Stop Backup Note: X means no matter GPS_VBAT is existed or not. 2.3. Functional Diagram Figure 1 shows the block diagram of SIM868: GSM baseband ...

  • Page 17: Package Information

    Smart Machine Smart Decision 3. Package Information 3.1. Pin Out Diagram STATUS NETLIGHT VDD_EXT PWRKEY GSM_VBAT GPS_VBAT UART1_TXD GPS_ANT GSM_ANT UART1_RXD SPK2N UART1_RTS SPK2P UART1_CTS UART1_DCD RF_SYNC UART1_DTR UART1_DTR VRTC GPS_RXD MCCA3 UART1_RI MCCA2 GPS_TXD USB_DM 1PPS MCCA1 MICP USB_DP GNSS_EN MCCA0 MICN...

  • Page 18: Pin Description

    Smart Machine Smart Decision 3.2. Pin Description Table 6: Pin description Pin name Pin number Description Comment Power supply GPS_VBAT Power supply for GNSS 2.9V ~4.4V GSM_VBAT Power supply for GSM 3.4V ~4.4V VDD_EXT 2.8V power output If it is unused, keep open. 8,13,19,21,27,30, 31,33,36,37,45,63, 36、37 pins recommend for...
  • Page 19 Smart Machine Smart Decision Serial port UART1_DTR Data terminal ready UART1_RI Ring indicator UART1_DCD Data carrier detect UART1_CTS Clear to send If these pins are unused, UART1_RTS Request to send keep open. UART1_TXD Transmit data UART1_RXD Receive data UART2_TXD Transmit data UART2_RXD Receive data Debug interface...

  • Page 20: Package Dimensions

    Smart Machine Smart Decision 3.3. Package Dimensions Figure 3: Dimensions of SIM868 (Unit: mm) SIM868_Series_Hardware_Design_V1.06 2017-07-13...
  • Page 21 Smart Machine Smart Decision Figure 4: Recommended PCB footprint outline SIM868_Series_Hardware_Design_V1.06 2017-07-13...
  • Page 22 Smart Machine Smart Decision Figure 5: Recommended SMT stencil footprint outline SIM868_Series_Hardware_Design_V1.06 2017-07-13...

  • Page 23: Application Modes Of Sim868

    Smart Machine Smart Decision 4. Application Modes of SIM868 All-in-one Mode 4.1. In all-in-one mode, UART2 of GSM is connected with GNSS_UART. It’s convenient for communication between GSM and GNSS, such as control GNSS, firmware upgrade and download EPO data. As the Figure 6, a 10K resistor should be added between GPIO1 and GNSS_EN pin.

  • Page 24: Stand-Alone Mode

    Smart Machine Smart Decision 4.2. Stand-alone Mode In stand-alone mode, GSM and GNSS part can work independently. It’s convenient for customer to control them separately. Figure 7 is the block diagram of this mode. Module VRTC VRTC GSM_VBAT Adapter GPS_VBAT V_GPS GNSS_EN Figure 7: Stand-alone Mode Diagram...

  • Page 25: Application Interface Of Gsm

    Smart Machine Smart Decision 5. Application Interface of GSM Power Supply of GSM 5.1. The recommended typical power supply voltage of GSM is 4.0V, and range from 3.4V to 4.4V. The maximum current consumption of GSM can reach 2A maximum during a transmitting burst period, which will cause a big voltage drop on the GSM_VBAT.

  • Page 26: Reference Circuit Of Gsm Power Supply

    Smart Machine Smart Decision 5.2. Reference Circuit of GSM Power Supply Figure 10 is the reference design of +5V input power supply. The output power supply is 4.1V, thus a linear regulator can be used. U101 MIC29302 DC INPUT GSM_VBAT Vout C101 C102...

  • Page 27: Power On/Off Gsm Part

    Smart Machine Smart Decision 5.3. Power on/off GSM Part 5.3.1. Power on GSM Customer can power on GSM by pulling down the PWRKEY pin for at least 1 second and then release. This pin is already pulled up to 3V in the module internal, so external pull up is not necessary. Reference circuits are shown as below.

  • Page 28: Power Off Gsm

    Smart Machine Smart Decision operate at fixed baud rate. This URC does not appear when autobauding function is active. Note: Customer can use AT command “AT+IPR=x” to set a fixed baud rate and save the configuration to non-volatile flash memory. After the configuration is saved as fixed baud rate, the Code “RDY” should be received from the serial port every time when SIM868 is powered on.

  • Page 29: Power Saving Mode Of Gsm

    Smart Machine Smart Decision NORMAL POWER OFF At this moment, AT commands can’t be executed any more. Power off mode can also be indicated by STATUS pin, which is at low level at this time. For detail about AT command “AT+CPOWD”, please refer to document [1]. 5.3.2.3.

  • Page 30: Serial Port Of Gsm

    Smart Machine Smart Decision this case, the serial port is still accessible, but partial AT commands and correlative to RF function and SIM card function will not be accessible. For detailed information about AT command “AT+CFUN=<fun>“, please refer to document [1]. 5.4.1.1.

  • Page 31: Function Of Serial Port

    Smart Machine Smart Decision UART1_TXD Transmit data UART1_RXD Receive data UART2_TXD Transmit data UART2_RXD Receive data Note: Hardware flow control is disabled by default. AT command “AT+IFC=2, 2”can enable hardware flow control. AT command “AT+IFC=0,0”can disable hardware flow control. For more details please refer to document [1].
  • Page 32 Smart Machine Smart Decision GSM(DCE) Customer(DTE) Serial Port Serial Port UART1_TXD UART1_RXD UART1_RTS UART1_CTS UART1_DTR UART1_DCD RING UART1_RI Figure 18: Connection of the serial interfaces If the voltage of UART is 3.3V, the following reference circuits are recommended. If the voltage is 3.0V, please change the resistors in the following figure from5.6K to 14K.

  • Page 33: Debug Interface

    Smart Machine Smart Decision VDD_EXT 4.7K VDD_EXT 4.7K UART1_TXD Figure 21: TX level matching circuit VDD_EXT VDD_EXT 4.7K 4.7K UART1_RXD Figure 22: RX level matching circuit 5.5.3. Debug Interface GSM could be debugged through USB port. The recommended diagram is shown as Figure 23: VBUS USB_VBUS USB_DM...

  • Page 34: Software Upgrade Of Gsm

    Smart Machine Smart Decision Table 11: USB_VBUS operation voltage Unit USB_VBUS 5.5.4. Software Upgrade of GSM Customer could upgrade module’s GSM part firmware through USB or UART interface. If upgrading GSM part through USB interface, it is necessary to connect USB_VBUS, USB_DP, USB_DM, and GND to PC.

  • Page 35: Audio Interfaces

    Smart Machine Smart Decision The behavior of the RI pin is shown in the following figure when the module is used as a receiver. HIGH Establish the call Hang up the call Idle Ring Figure 25: UART1_RI behaviour of voice calling as a receiver HIGH 120ms Receive SMS...

  • Page 36: Speaker Interfaces Configuration

    Smart Machine Smart Decision SPK2N Audio output negative SPK1P/1N output can directly drive 32Ω receiver. SPK2P/2N output can directly drive 8Ω speaker, which integrates class-AB audio amplifier as shown Table 14: Table 14: Performance of audio amplifier Test Conditions Class-AB AMP 4.2V 8Ω...

  • Page 37: Microphone Interfaces Configuration

    Smart Machine Smart Decision 5.7.2. Microphone Interfaces Configuration These components should be placed to microphone as close as possible 33pF 10pF MICP The lines in bold type should be accorded to differential 33pF 10pF signal layout rules Electret MICN Microphone 33pF 10pF Module...

  • Page 38: Sim Card Interface

    Smart Machine Smart Decision GSM antenna is the key coupling interfering source of TDD noise. Thereat, pay attention to the layout of audio lines which should be far away from RF cable, antenna and GSM_VBAT pin. The bypass capacitor for filtering should be placed near module.

  • Page 39: Sim Card Design Guide

    Smart Machine Smart Decision 4.7K VDD_EXT MOLEX-91228 SIM_VDD SIM_RST SIM_CLK Module SIM_DET PRESENCE SIM_DATA SIM Card 22pF 22pF 22pF 100nF ESDA6V1 Figure 30: Reference circuit of the 8-pin SIM card holder The SIM_DET pin is used for detection of the SIM card hot plug in. Customer can select the 8-pin SIM card holder to implement SIM card detection function.

  • Page 40: Design Considerations For Sim Card Holder

    Smart Machine Smart Decision 5.8.3. Design Considerations for SIM Card Holder For 8-pins SIM card holder, SIMCom recommends to use Molex 91228. Customer can visit http://www.molex.com for more information about the holder. Figure 32: Molex 91228 SIM card holder Table 18: Pin description (Molex SIM card holder) Pin name Signal Description...
  • Page 41 Smart Machine Smart Decision For 6-pin SIM card holder, SIMCom recommends to use Amphenol C707 10M006 512 .Customer can visit http://www.amphenol.com for more information about the holder. Figure 33: Amphenol C707 10M006 512 SIM card holder Table 19: Pin description (Amphenol SIM card holder) Pin name Signal Description...

  • Page 42: Sd Interface

    Smart Machine Smart Decision 5.9. SD Interface The reference circuit is recommended in Figure 34: DAT2 MCCA2 MCCA3 DAT3 MCCM0 VDD_SD MCCK DAT0 MCCA0 DAT1 MCCA1 Module Figure 34: SD reference circuit If the power supply is 2.8V for SD card, customer can use VDD_EXT; if the power supply is 3.3V, please use external LDO.

  • Page 43: Network Status Indication

    Smart Machine Smart Decision Table 22: ADC specification Parameter Unit Voltage range ADC Resolution bits Sampling rate 1.08 ADC precision 5.12. Network Status Indication Table 23: Pin definition of the NETLIGHT Pin name Pin number Description NETLIGHT Network Status Indication The NETLIGHT pin can be used to drive a network status indication LED.

  • Page 44: Rf Synchronization Signal

    Smart Machine Smart Decision and low when module is powered off. Table 25: Pin definition of the STATUS Pin name Pin number Description STATUS Operating status indication Note: For timing about STATUS, please refer to the chapter “Power on/off GSM Part” 5.14.
  • Page 45 Smart Machine Smart Decision (Pin31) Module RF connector Antenna GSM_ANT R101 (Pin32) C101 D101 C102 (Pin33) Figure 37: GSM antenna matching circuit The RF connector is used for conduction test. If the space between RF pin and antenna is not enough, the matching circuit should be designed as in the following figure: (Pin31) Module...

  • Page 46: Bluetooth Antenna Interface

    Smart Machine Smart Decision 5.16. Bluetooth Antenna Interface The Bluetooth Interface of SIM868 is compliant with Bluetooth Specification 3.0. It is recommended to reserve the matching circuit as following: (Pin19) Module Antenna BT_ANT R201 (Pin20) C201 C202 (Pin21) Figure 39: Bluetooth antenna matching circuit R201, C201, C202 are the matching circuit, the value should be defined by the antenna design.
  • Page 47 Smart Machine Smart Decision range) Table 29: Current consumption (CSCLK=0) Test Case Current Consumption(mA) Note : VBAT=3.8V Modem Stand By 13.1 Turn on flight mode with SIM Card BT On with BLE advertising 14.0 Modem: off BT: on (Interval:500ms~1250ms, Normal=880ms) BLE Connection 14.3 Modem: off...

  • Page 48: Application Interface Of Gnss

    Smart Machine Smart Decision 6. Application Interface of GNSS 6.1. GNSS Overview SIM868 provides a high-performance L1 GNSS solution for cellular handset applications. The solution offers best-in-class acquisition and tracking sensitivity, Time-To-First-Fix (TTFF) and accuracy. The GNSS supports both fully-autonomous operations for handheld consumer navigation devices and other standalone navigation systems.

  • Page 49: Power On/Off Gnss

    Smart Machine Smart Decision Rechargeable battery backup  Module GNSS Part Power Supply GPS_VBAT Backup LDO/DCDC Domain VRTC Rechargeable Backup Battery Figure 41: RTC supply from rechargeable battery External Power  Module GNSS Part Power Supply GPS_VBAT Backup LDO/DCDC Domain VRTC 2.3-4.3V External power...

  • Page 50: Serial Port Of Gnss

    Smart Machine Smart Decision Figure 43: Power on/off GNSS GPS_VBAT (input) GNSS_EN =1.6s T =1.9s V_GPS NEMA GPS_TX Figure 44: Timing of power on GNSS GPS_VBAT (input) =3.4s GNSS_EN V_GPS GPS_TX NEMA Figure 45: Timing of power off GNSS 6.5. Serial Port of GNSS GNSS UART interface support NMEA output and PMTK command input.

  • Page 51: Software Upgrade Of Gnss

    Smart Machine Smart Decision 6.6. Software Upgrade of GNSS GNSS firmware can be upgraded through UART interface. Module(GNSS) I/O Connector Serial Port GPS_TXD GPS_RXD GNSS_EN 2.8V Figure 46: Connection for software upgrading and debugging for GNSS If customer upgrades GSM and GNSS part in all-in-one mode, the GNSS UART should be connected to GSM UART2;...

  • Page 52: Antenna Interface

    Smart Machine Smart Decision GPS_VBAT Module 4.7K 1PPS Figure 48: 1PPS Application circuit 6.8. Antenna Interface Antenna interface of GNSS: The input impendence of the antenna should be 50Ω, and the VSWR should be less than 2.  It is recommended that the GNSS antenna should be placed as far as possible to other antenna. ...

  • Page 53: Active Antenna

    Smart Machine Smart Decision 6.8.2. Active Antenna Active antenna has an integrated Low-Noise Amplifier (LNA). VCC_ANT is needed on customer’s application board for the active antenna power input, as shown in Figure 50. GNSS Active Antenna VCC_ANT L101 27nH R102 10Ω MODULE Matching circuit GPS_ANT...
  • Page 54 Smart Machine Smart Decision $PMTK353,0,1,0,0,0*2A (GLONASS only) $PMTK353,1,1,0,0,0*2B (GPS+GLONASS) $PMTK353,1,0,0,0,1*2B (GPS+BEIDOU) Customer can refer to document [13] for more information. Stop mode: Stop mode means a low quiescent (590uA typ) power state and a PMTK command can be used  to enter.

  • Page 55: A-Gps

    Smart Machine Smart Decision Positioning Engine (ARM) on/off. In GLP mode, the active time (on time) of Measurement Engine (DSP) and Positioning Engine (ARM) should be adjusted dynamically according to GNSS signal. Note: Using the PMTK262 command to enable/disable GLP mode: "$PMTK262,3"...

  • Page 56: Multi-Tone Aic

    Smart Machine Smart Decision or NTP, which could reduce TTFF and acquisition sensitivity in cold start. 6.12. Multi-tone AIC SIM868 module supports Multi-tone AIC (active interference canceller) to suppress the RF noise from GSM, Wi-Fi and so on. With the help of AIC function, The GNSS signal could be demodulated from the jammed signal, which can ensure better navigation quality.

  • Page 57: Pcb Layout

    Smart Machine Smart Decision 7. PCB Layout This section provides some guidelines on PCB layout, in order to eliminate interference or noise. 7.1. Pin Assignment Before PCB layout, we should learn about pin assignment in order to get reasonable layout with so many external components.

  • Page 58: Principle Of Pcb Layout

    Smart Machine Smart Decision 7.2. Principle of PCB Layout 7.2.1. Antenna Interface Antenna interface used for RF conducting test such as coaxial cable pad, RF connector  should be placed close to RF_IN pad. trace should be as short and direct as possible. ...

  • Page 59: Electrical, Reliability And Radio Characteristics

    Smart Machine Smart Decision 8. Electrical, Reliability and Radio Characteristics 8.1. Absolute Maximum Ratings The absolute maximum ratings stated in Table 34 are stress ratings under non-operating conditions. Stresses beyond any of these limits will cause permanent damage to SIM868. Table 34: Absolute maximum ratings Symbol Unit...

  • Page 60: Sim Card Interface Characteristics

    Smart Machine Smart Decision Note: These parameters are for digital interface pins, such as GPIO and UART. 8.4. SIM Card Interface Characteristics Table 37: SIM card interface characteristics Symbol Parameter Unit High-level input current -1.0 Low-level input current -1.0 High-level input voltage 0.27 Low-level input voltage 1.62...

  • Page 61: Electro-Static Discharge

    Smart Machine Smart Decision @ f<200kHz @ f>200kHz Power off mode Sleep mode (AT+CFUN=1)： ( BS-PA-MFRMS=9 ) 0.86 ( BS-PA-MFRMS=5) 1.02 ( BS-PA-MFRMS=2) 1.42 Idle mode (AT+CFUN=1)： GSM850 13.7 EGSM900 13.7 DCS1800 13.7 PCS1900 13.7 Voice call (PCL=5)： GSM850 EGSM900 Voice call (PCL=0)：...

  • Page 62: Radio Characteristics

    Smart Machine Smart Decision ±5KV ±10KV UART1_TXD /UART1_RXD ±4KV ±8KV Antenna port ±5KV ±10KV SPKP/SPKN/MICP/MICN ±4KV ±8KV PWRKEY ±4KV ±8KV 8.9. Radio Characteristics 8.9.1. Module RF Output Power The Table 42 shows the module conducted output power, it follows the 3GPP TS 05.05 technical specification requirement.

  • Page 63: Module Rf Receive Sensitivity

    Smart Machine Smart Decision ±3 ±4 ±3 ±4 ±3 ±4 ±3 ±4 ±3 ±4 ±4 ±5 ±4 ±5 ±4 ±5 ±4 ±5 ±4 ±5 ±5 ±6 ±5 ±6 For the module’s output power, the following should be noted: At GSM900 and GSM850 band, the module is a class 4 device, so the module’s output power should not exceed 33dBm, and at the maximum power level, the output power tolerance should not exceed +/-2dB under normal condition and +/-2.5dB under extreme condition.

  • Page 64: Manufacturing

    Smart Machine Smart Decision 9. Manufacturing 9.1. Top and Bottom View of SIM868 Figure 52: Top and bottom view of SIM868 9.2. Typical Solder Reflow Profile Figure 53: Typical solder reflow profile of lead-free process SIM868_Series_Hardware_Design_V1.06 2017-07-13...

  • Page 65: The Moisture Sensitivity Level

    Smart Machine Smart Decision 9.3. The Moisture Sensitivity Level The moisture sensitivity level of SIM868 module is 3. The modules should be mounted within 168 hours after unpacking in the environmental conditions of temperature <30℃ and relative humidity of <60% (RH). It is necessary to bake the module if the above conditions are not met: Table 46: Moisture sensitivity level and floor life Moisture Sensitivity Level...

  • Page 66: Packaging

    Smart Machine Smart Decision 10. Packaging SIM868 module support tray packaging. Figure 54: Packaging introduce Figure 55: Module tray drawing Table 48: Tray size Length（±3mm） Width（±3mm） Number 242.0 161.0 SIM868_Series_Hardware_Design_V1.06 2017-07-13...
  • Page 67 Smart Machine Smart Decision Figure 56: Small carton drawing Table 49: Small Carton size Length（±10mm） Width（±10mm） Height（±10mm） Number 50*20=1000 Figure 57: Big carton drawing Table 50: Big Carton size Length（±10mm） Width（±10mm） Height（±10mm） Number 1000*4=4000 SIM868_Series_Hardware_Design_V1.06 2017-07-13...

  • Page 68: Appendix

    Smart Machine Smart Decision 11. Appendix 11.1. Related Documents Table 51: Related documents Document name Remark SIM800_Series_AT_Command_Manual SIM800 Series UART Port Application Note_V1.01.doc SIM800 Series_TCPIP_Application Note_V1.02 ITU-T Draft recommendation Serial asynchronous automatic dialing and control V.25ter： Digital cellular telecommunications (Phase 2+); AT GSM 07.07：...

  • Page 69: Terms And Abbreviations

    Smart Machine Smart Decision 11.2. Terms and Abbreviations Table 52: Terms and abbreviations Abbreviation Description Analog-to-Digital Converter Adaptive Multi-Rate Coding Scheme Clear to Send Data Terminal Equipment (typically computer, terminal, printer) Data Terminal Ready Discontinuous Transmission Enhanced Full Rate EGSM Enhanced GSM Electrostatic Discharge European Telecommunication Standard...
  • Page 70 Smart Machine Smart Decision Circular Error Probable GNSS Low Power DGPS Difference Global Positioning System EEPROM Electrically Erasable Programmable Read Only Memory Extended Prediction Orbit Electrostatic Sensitive Devices EASY Embedded Assist System EGNOS European Geostationary Navigation Overlay Service Global Positioning System GAGAN The GPS Aided Geo Augmented Navigation kbps...

  • Page 71: Safety Caution

    Smart Machine Smart Decision 11.3. Safety Caution Table 53: Safety caution Marks Requirements When in a hospital or other health care facility, observe the restrictions about the use of mobiles. Switch the cellular terminal or mobile off, medical equipment may be sensitive to not operate normally for RF energy interference.
  • Page 72 Smart Machine Smart Decision Contact us: Shanghai SIMCom Wireless Solutions Co.,Ltd. Address: Building A, SIM Technology Building, No. 633, Jinzhong Road, Shanghai, P. R. China 200335 Tel: +86 21 3252 3300 Fax: +86 21 3252 3020 URL: www.simcomm2m.com SIM868_Series_Hardware_Design_V1.06 2017-07-13...

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