FCC ID: 2AJYU-8MH0011 LTE Wireless Data Module

SIM6600-M2 Hardware Design LTE Module SIMCom Wireless Solutions Limited Bldg.3, SIMCom Headquarter Bldg., Level 6 to 9, No.289, Linhong RdChangning District, Shanghai P.R. China Tel: 86-21-31575100 support@simcom.com www.simcom.com SIM6600-M2 Hardware Design V1.00 Document Title:

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GENERAL NOTES SIM6600-M2 Hardware Design V1.00 2022-02-28 Released 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. SIMCOM HAS NOT UNDERTAKEN ANY INDEPENDENT SEARCH FOR ADDITIONAL RELEVANT INFORMATION, INCLUDING ANY INFORMATION THAT MAY BE IN THE CUSTOMERS POSSESSION. FURTHERMORE, SYSTEM VALIDATION OF THIS PRODUCT DESIGNED BY SIMCOM WITHIN A LARGER ELECTRONIC SYSTEM REMAINS THE RESPONSIBILITY OF THE CUSTOMER OR THE CUSTOMERS SYSTEM INTEGRATOR. ALL SPECIFICATIONS SUPPLIED HEREIN ARE SUBJECT TO CHANGE. COPYRIGHT THIS DOCUMENT CONTAINS PROPRIETARY TECHNICAL INFORMATION WHICH IS THE PROPERTY OF SIMCOM WIRELESS SOLUTIONS LIMITED COPYING, TO OTHERS AND USING THIS DOCUMENT, ARE FORBIDDEN WITHOUT EXPRESS AUTHORITY BY SIMCOM. OFFENDERS ARE LIABLE TO THE PAYMENT OF INDEMNIFICATIONS. ALL RIGHTS RESERVED BY SIMCOM IN THE PROPRIETARY TECHNICAL INFORMATION INCLUDING BUT NOT LIMITED TO REGISTRATION GRANTING OF A PATENT , A UTILITY MODEL OR DESIGN. ALL SPECIFICATION SUPPLIED HEREIN ARE SUBJECT TO CHANGE WITHOUT NOTICE AT ANY TIME. SIMCom Wireless Solutions Limited Bldg.3, SIMCom Headquarter Bldg., Level 6 to 9, No.289, Linhong Rd, Changning Dist., Shanghai, P.R.China Tel: +86 21 31575100 Email: simcom@simcom.com For more information, please visit:

https://www.simcom.com/download/list-863-en.html For technical support, or to report documentation errors, please visit:

https://www.simcom.com/ask/ or email to: support@simcom.com Copyright 2022 SIMCom Wireless Solutions Limited All Rights Reserved. www.simcom.com 2 / 54 SIM6600-M2 Hardware Design V1.00 Version History Date 2022-02-28 Version V1.00 Description of change Released Author Wu yingchun Rong min www.simcom.com 3 / 54 SIM6600-M2 Hardware Design V1.00 Contents 1 Introduction.................................................................................................................................................... 8 1.1 Product Outline................................................................................................................................................. 8 1.2 Hardware Block Diagram................................................................................................................................ 9 1.3 Functional Overview...................................................................................................................................... 10 2 Package Information.................................................................................................................................. 12 2.1 Pin Assignment Overview............................................................................................................................. 12 2.2 Pin Description................................................................................................................................................14 2.3 Mechanical Information................................................................................................................................. 18 2.4 Package Dimensions..................................................................................................................................... 18 3 Interface Application..................................................................................................................................19 3.1 Power Supply.................................................................................................................................................. 19 3.1.1 Power Supply Design Guide............................................................................................................. 19 3.1.2 Recommended Power Supply Circuit..............................................................................................20 3.2 FULL_CARD_POWER_OFF#..................................................................................................................... 21 3.2.1 Power on...............................................................................................................................................22 3.2.2 Power off...............................................................................................................................................23 3.2.3 Sleep mode.......................................................................................................................................... 23 3.3 Reset Function................................................................................................................................................24 3.4 UART interface................................................................................................................................................24 3.5 I2C Interface....................................................................................................................................................25 3.6 WoWWAN#......................................................................................................................................................26 3.7 USB2.0 Interface............................................................................................................................................ 27 3.8 UIM Interface...................................................................................................................................................28 3.8.1 USIM Application Guide..................................................................................................................... 29 3.8.2 USIM layout guide...............................................................................................................................29 3.9 I2S Interface*...................................................................................................................................................30 3.10 DPR*...............................................................................................................................................................30 3.11 CONFIG Pins................................................................................................................................................ 31 3.12 LED1#............................................................................................................................................................ 31 3.13 W_DISABLE1#............................................................................................................................................. 32 3.14 ANTCTRL interface......................................................................................................................................33 3.15 W_DISABLE2#............................................................................................................................................. 33 4 Antenna Interfaces..................................................................................................................................... 34 4.1 Operating Frequency..................................................................................................................................... 34 4.2 Antenna Installation........................................................................................................................................35 4.2.1 Antenna Requirements.......................................................................................................................35 4.2.2 Recommended RF Connector for Antenna Installation................................................................35 5 Electrical Specifications........................................................................................................................... 37 www.simcom.com 4 / 54 SIM6600-M2 Hardware Design V1.00 5.1 Absolute maximum ratings............................................................................................................................37 5.2 Operating conditions...................................................................................................................................... 37 5.3 Operating Mode.............................................................................................................................................. 38 5.3.1 Operating Mode Definition.................................................................................................................38 5.3.2 Sleep mode.......................................................................................................................................... 39 5.4 Current Consumption.....................................................................................................................................40 5.5 RF Output Power............................................................................................................................................41 5.6 Conducted Receive Sensitivity.................................................................................................................... 42 5.7 ESD...................................................................................................................................................................43 6 Appearance...................................................................................................................................................44 6.1 Top and Bottom View of Module.................................................................................................................. 44 7 Packaging..................................................................................................................................................... 45 8 Appendix....................................................................................................................................................... 48 8.1 Coding Schemes and Maximum Net Data Rates over Air Interface..................................................... 48 8.2 Related Documents........................................................................................................................................50 8.3 Terms and Abbreviations...............................................................................................................................52 8.4 Safety Caution.................................................................................................................................................54 www.simcom.com 5 / 54 SIM6600-M2 Hardware Design V1.00 Table Index Table 1 : SIM6600-M2 frequency bands........................................................................................................................................... 8 Table 2 : General features..................................................................................................................................................................... 10 Table 3 : Pin map...................................................................................................................................................................................12 Table 4 : IO parameters definition........................................................................................................................................................ 14 Table 5 : IO parameters definition........................................................................................................................................................ 14 Table 6 : Pin description........................................................................................................................................................................15 Table 7 : VBAT pins electronic characteristic................................................................................................................................. 19 Table 8 : Recommended TVS diode list.......................................................................................................................................... 20 Table 9 : Power on timing and electronic characteristic....................................................................................................................... 22 Table 10 : Sleep timing and electronic characteristic............................................................................................................................23 Table 11 : RESET pin electronic characteristic.....................................................................................................................................24 Table 13 : UIM electronic characteristic in 1.8V mode (UIM-PWR=1.8V)........................................................................................ 28 Table 14 : UIM electronic characteristic 3.0V mode (UIM-PWR=2.85V)...........................................................................................28 Table 17 : DPR interface....................................................................................................................................................................... 30 Table 18 : CONFIG Pins....................................................................................................................................................................... 31 Table 19 : Config interface....................................................................................................................................................................31 Table 20 : LED1# pin status..................................................................................................................................................................32 Table 21 : FLIGHTMODE pin status....................................................................................................................................................32 Table 22 : SIM6600-M2 Operating frequencies................................................................................................................................... 34 Table 24 :WCDMA/LTE antenna......................................................................................................................................................... 35 Table 26 : the major specifications of the RF connector.......................................................................................................................36 Table 27 :Absolute maximum ratings................................................................................................................................................... 37 Table 28 : Recommended operating ratings..........................................................................................................................................37 Table 29 : 1.8V Digital I/O characteristics*..........................................................................................................................................37 Table 30 :Operating temperature...........................................................................................................................................................38 Table 31 : Operating mode Definition*................................................................................................................................................ 38 Table 32 :Current consumption on VBAT Pins (VBAT=3.7V).......................................................................................................40 Table 33 : Conducted Output Power ................................................................................................................................................... 41 Table 34 :SIM6600-M2 Conducted RF Receiving Sensitivity............................................................................................................. 42 Table 35 : The ESD performance measurement table (Temperature: 25, Humidity: 45%).............................................................. 43 Table 36 : Tray size............................................................................................................................................................................... 46 Table 37 : Small Carton size................................................................................................................................................................. 46 Table 38 :Big Carton size......................................................................................................................................................................47 Table 39 : Coding Schemes and Maximum Net Data Rates over Air Interface....................................................................................48 Table 40 : Related Documents.............................................................................................................................................................. 50 Table 41 :Terms and Abbreviations.......................................................................................................................................................52 Table 42 :Safety Caution.......................................................................................................................................................................54 www.simcom.com 6 / 54 SIM6600-M2 Hardware Design V1.00 Figure Index Figure 1 : Standard Module block diagram.......................................................................................................................................9 Figure 2 : Pin out diagram................................................................................................................................................................. 18 Figure 3 : Dimensions of SIM6600-M2 (Unit: mm)........................................................................................................................18 Figure 4 : Power supply application circuit..................................................................................................................................... 20 Figure 5 : Linear regulator reference circuit................................................................................................................................... 21 Figure 6 : Switching mode power supply reference circuit...........................................................................................................21 Figure 7 : Reference power on/sleep circuit .................................................................................................................................22 Figure 8 : Power on timing sequence.............................................................................................................................................. 22 Figure 9 : Sleep timing sequence..................................................................................................................................................23 Figure 10 : Reference reset circuit................................................................................................................................................... 24 Figure 11 : UART modem.................................................................................................................................................................. 25 Figure 12 : Reference circuit of level shift.......................................................................................................................................25 Figure 13 : I2C reference circuit....................................................................................................................................................... 26 Figure 14 : WOWWAN# behaviourSMS and URC report.................................................................................................... 26 Figure 15 : WOWWAN# reference circuit....................................................................................................................................... 27 Figure 16 : USB reference circuit..................................................................................................................................................... 28 Figure 17 : USIM interface reference circuit................................................................................................................................... 29 Figure 18 : UIM interface reference circuit with UIM_DET...........................................................................................................29 Figure 19 : LED1# reference circuit................................................................................................................................................. 31 Figure 20 : Flight mode switch reference circuit............................................................................................................................ 32 Figure 21 : Antenna connector......................................................................................................................................................... 36 Figure 22 : Top and bottom view of Module ..................................................................................................................................44 Figure 23 : Packaging diagram.........................................................................................................................................................45 Figure 24 : Tray drawing.................................................................................................................................................................... 46 Figure 25 : Small carton drawing......................................................................................................................................................46 Figure 26 : Big carton drawing.......................................................................................................................................................... 47 www.simcom.com 7 / 54 SIM6600-M2 Hardware Design V1.00 1 Introduction This document describes the electronic specifications, RF specifications, interfaces, mechanical characteristics and testing results of the SIMCom M.2 card. With the help of this document and other software application notes/user guides, users can understand and use SIM6600-M2 to design and develop mobile and laptop applications quickly. Aimed at the global market, SIM6600-M2 supports WCDMA, LTE-TDD and LTE-FDD, support DL 2CA . The supported radio frequency bands are described in the table1. 1.1 Product Outline Table 1: SIM6600-M2 frequency bands Standard Frequency bands WCDMA LTE(TDD) LTE(FDD) B1/B2//B4/B5/B8 B34/B38/B39/B40/B41 2CA B1+B3/5/7/8/18/19/20/26/28/40;

B2+B2/4/5/12/13/17/28/29/66/71;

B3+B3/5/7/8/19/20/28/40;

B4+B4/5/12/13/17/28/29/66/71;

B5+B5/7/30/40/66;

B7+B7/8/20/28;

B8+B38/40/41;

B12+B30/66;

B13+B66;

B20+B28;

B25+B25/26;

B26+B41;

B28+B41;

B29+B30/66;

B40+B40;

B41+B41;

B66+B66/71;

(Note: B29 is only for secondary component carrier) B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B29/B30/B66/B71 www.simcom.com 8 / 54 SIM6600-M2 Hardware Design V1.00 With a physical dimension of 30.0*42.0*2.3 mm, SIM6600-M2 can meet PCI Express M.2 Specification, and can meet almost any space requirement in users applications. With M.2 Type 3042-S3-B, SIM6600-M2 had almost all common interface integrated, such as USB2.0, UIM card, digital audio(I2S or PCM), UART, I2C, GPIOs, MAIN ANT and DIV ANT , etc. With all the interfaces, SIM6600-M2 can also be utilized in the industrial handheld, machine-to-machine laptop application and especially the router. 1.2 Hardware Block Diagram The block diagram of SIM6600-M2 is shown as below:

Figure 1: Standard Module block diagram www.simcom.com 9 / 54 SIM6600-M2 Hardware Design V1.00 1.3 Functional Overview Table 2: General features Feature Power supply Power consumption Implementation VBAT:3.1354.4V Typical supply voltage: 3.7V Current in sleep mode : <5mA Radio frequency bands Please refer to the table 1 Transmitting power Data Transmission Throughput WCDMA power class: 3 (0.25W) LTE power class: 3 (0.25W) UMTS R99 speed: 384 kbps DL/UL HSPA+: 5.76 Mbps(UL), 42 Mbps(DL) FDD-LTE :Max 300Mbps (DL Category7), 150Mbps (UL Category 13) TDD-LTE :Max 200Mbps (DL Category7), 84Mbps (UL Category 13) WCDMA/LTE main antenna. LTE diversity antenna MT, MO, CB, Text and PDU mode SMS storage: USIM card or ME(default) Transmission of SMS alternatively over CS or PS. USIM interface Support identity card: 1.8V/ 3V application Support SAT class 3, GSM 11.14 Release 98 Support USAT Antenna SMS USIM toolkit Phonebook management Support phonebook types: DC,MC,RC,SM,ME,FD,ON,LD,EN One I2S interface with dedicated main-clock for primary digital audio, the I2S also can be configured as PCM Half Rate (ETS 06.20) Full Rate (ETS 06.10) MCLK frequency: 12.288MHz (default) Enhanced Full Rate (ETS 06.50 / 06.60 / 06.80) WCDMA AMR-NB VoLTE AMR-WB Echo Cancellation Noise Suppression UART:

Baud rate: 300bps to 921600bps(default:115200bps) Can be used as the AT commands or data stream channel Multiplex ability according to GSM 07.10 Multiplexer Protocol Could be configured as GPIOs. I2C:

Apply to the I2C Specification, version 3.0 Clock up to 400Kbps Digital Audio feature UART interface I2C interface www.simcom.com 10 / 54 SIM6600-M2 Hardware Design V1.00 USB USB2.0: high speed interface, support USB operations at low-speed and full-speed, which refer to USB1.0 and USB1.1. Firmware upgrade Physical characteristics Firmware upgrade over USB interface or FOTA Size:30*42*2.3mm Weight:TBD Temperature range Operation temperature: -25C to +75C www.simcom.com 11 / 54 SIM6600-M2 Hardware Design V1.00 2 Package Information 2.1 Pin Assignment Overview All functions of the M.2 card will be provided through 75 (including 8 notch pins) pads that will be connected to the customers platform. The following table is the high-level view of the pin assignment of the card. Table 3: Pin map 74 72 70 68 66 64 62 60 58 56 54 52 50 48 46 44 VBAT VBAT VBAT I2C_SDA(1.8V) UIM1_DET (1.8V) UART_TXD(1.8V) UART_RXD(1.8V) I2S_MCLK(1.8V) MIPI_DATA(1.8V) MIPI_CLK(1.8V) I2C_IRQ#(1.8V) I2S_WS(1.8V) UIM2_PWR UIM2_RESET UIM2_CLK I2S_TX/ANT_TUNER_CFG(1.8V) CONFIG_2 GND GND CONFIG_1 RESET#(I)(1.8V) ANTCTL3(O)(1.8V) ANTCTL2(O)(1.8V) ANTCTL1(O)(1.8V) ANTCTL0(O)(1.8V) GND GND NC NC NC NC GND NC 75 73 71 69 67 65 63 61 59 57 55 53 51 49 47 45 43 www.simcom.com 12 / 54 W_DISABLE2#(3.3/1.8V) WoWWAN#(OD)(1.8V/3.3V) PCI_DPR1#

(I)(1.8V/3.3V) CONFIG_0 42 40 38 36 34 32 30 28 26 24 22 20 10 8 6 4 2 UIM2_DATA UIM2_DET (1.8V) I2C_SCL(1.8V) UIM1_PWR UIM1_DATA UIM1_CLK UIM1_RESET PCI_DPR2#

(I)(1.8V/3.3V) MIPI_1V8 I2S_DIN(1.8V) I2S_CLK (1.8V) Notch Notch Notch Notch VBAT VBAT LED1#

(3.3V OD) W_DISABLE1#

(3.3/1.8V) FULL_CARD_POWER_OFF#(3.3/1.8V) SIM6600-M2 Hardware Design V1.00 NC GND GND NC NC NC NC GND Notch Notch Notch Notch GND USB D-

USB D+

GND GND CONFIG_3 41 39 37 35 33 31 29 27 25 23 21 11 9 7 5 3 1 www.simcom.com 13 / 54 SIM6600-M2 Hardware Design V1.00 2.2 Pin Description Table 4: IO parameters definition Pin type Description Power input Power output Analog input Digital input Digital output Pull up Pull down Open Drain Analog input/output Bidirectional digital input /output Digital output with high level Digital output with low level PI PO AI AIO DIO DI DO DOH DOL PU PD OD P3 P4 Table 5: IO parameters definition Voltage domain Parameter VDD_P3=1.8V DVDD18 Min Typ Max VDD_P4=1.8V High level output 1.4V VOH VOL VIH VIL VOH VOL VIH VIL VIH VIL VDD_P4=3.0V VOH VOL High level output Low level output High level input Low level input Low level output High level input Low level input High level output Low level output High level input Low level input 1.35V 0V 1.2V

-0.3V

1.4V 2.7V

2.0V

1.8V 0V 1.8V 0V 3.0V 0V

0V 1.8V 0.4V 2.1V 0.63V 1.8V 0.22V

0.27V 3.1V 0.36V 3.15V 0.4V www.simcom.com 14 / 54 SIM6600-M2 Hardware Design V1.00 Table 6: Pin description Pin name Power supply VBAT GND System Control 2,4,70, 72,74 3,5,11, 27,33, 39,45, 51,57, 71,73 Pin No. Electrical Description Description Comment PI M,2 card power supply, voltage range: 3.135 4.4V, typical 3.7V. User should connect these pins together. Ground FULL_CARD_POWER_ OFF#

6 DI,PD H: WWAN powers on. L: WWAN go to sleep mode. Its internally pulled to Low. Its 3.3V tolerant but can be driven by either 1.8V or 3.3V GPIO. RESET_N has been pulled up to 1.8V via resistor internally. Its 3.3V tolerant but can be driven by either 1.8V or 3.3V GPIO. Its 3.3V tolerant but can be driven by either 1.8V or 3.3V GPIO. SIM6600-M2 module is configured as the WWAN USB2.0 interface type. System reset control input, active low. WWAN RF Disable, active low. GNSS low.Reserved. disable, active Wake on the host.Active low. Connect to ground Connect to ground Connect to ground Not connected Reset#

67 P3 DI,PU W_DISABLE1#

W_DISABLE2#

WoWWAN#

Configuration pins CONFIG0 USB2.0/USB3.0 CONFIG1 CONFIG2 CONFIG3 USB_D+

USB D-

UIM interface UIM1_PWR UIM1_DATA 8 26 23 21 69 75 1 7 9 36 34 DI DI OD GND GND GND NC AIO AIO PO DIO Positive line of the differential, bi-directional USB signal. Negative differential, USB signal. the of bi-directional line Main communication interface. USB2.0 data rate up to 480Mbps. P4 Power supply for UIM1 card. UIM1 Card data I/O, which no need reserve Pull up 1.8V/3.0V voltage domain,all lines www.simcom.com 15 / 54 Antenna control interface*

ANTCTL0 59 UIM1_CLK UIM1_RESET UIM1 DET UIM2_PWR UIM2_DATA UIM2_CLK UIM2_RESET UIM2_DET ANTCTL1 ANTCTL2 ANTCTL3 MIPI_DATA MIPI_CLK MIPI_1V8 I2S interface*

I2S_CLK I2S_RX I2S_WS I2S_MCLK I2C interface I2C_SDA I2C_SCL I2C_IRQ#

UART interface UART_RXD UART_TXD Other pins LED1#

www.simcom.com DO DO DI PO DO DO DO DO DIO DO PO DI DO DO DO DIO DO DI P4 P4 P3 P4 P4 P4 P4 P3 P3 P3 P3 P3 P3 P3 P3 P3 P3 P3 P3 P3 P3 P3 P3 32 30 66 48 42 44 46 40 61 63 65 58 56 24 20 22 50 52 60 68 38 54 62 64 10 I2S_TX/ANT_TUNER_C FG P3 DO SIM6600-M2 Hardware Design V1.00 resistor to UIM1_PWR. UIM1 clock signal. UIM1 Reset control. UIM1 card detect. Power supply for UIM2 card. UIM2 Card data I/O, which no need reserve Pull up resistor to UIM2_PWR. UIM2 clock signal. UIM2 Reset control. UIM2 card detect. Antenna tuner control 0 Antenna tuner control 1 Antenna tuner control 2 Antenna tuner control 3 MIPI interface tunable ANT, MIPI data MIPI interface tunable ANT, MIPI clock 1.8V power antenna tuner output for I2S serial clock,Reserved I2S Serial receive data,Reserved I2S Serial transmit data,can mux as ANT_TUNER_CFG or GPIO,reserved I2S word alignment/select,Reserved I2S main clock,Reserved of UIM interface should be protected against ESD. If unused,please keep open. voltage 1.8V domain. If unused, please keep open. 1.8V voltage domain. If unused, keep them open. I2C data signal I2C clock signal I2C interrupt mux as GPIO request,can 1.8V voltage domain.Internal pulled up to 1.8V. If unused, please keep open. UART receive mux as GPIO. data,can UART transmit data,can mux as GPIO. 1.8V voltage domain. OD The module 16 / 54 SIM6600-M2 Hardware Design V1.00 DI DI Dynamic power reduction -

Body SAR control signal1#

Dynamic power reduction -

Body SAR control signal2#

status indicator via LED devices Active low Its 3.3V tolerant but can be driven by either 1.8V or 3.3V GPIO. NC pins,please keep open. NC Notch 25 28 29,31, 35,37, 41,43, 47,49, 53,55 12,13, 14,15, 16,17, 18,19 PCI_DPR1#*

PCI_DPR2#*

NC NC Notch Notch NOTE

*means under development. www.simcom.com 17 / 54 SIM6600-M2 Hardware Design V1.00 2.3 Mechanical Information The following figure shows the package outline drawing of the M.2 card. TOP View BOT View Figure 2: Pin out diagram 2.4 Package Dimensions Figure 3: Dimensions of SIM6600-M2 (Unit: mm) www.simcom.com 18 / 54 SIM6600-M2 Hardware Design V1.00 3 Interface Application 3.1 Power Supply The recommended power supply of SIM6600-M2 is 3.7V and the voltage ranges from 3.135 V to 4.4 V. The SIM6600-M2 has 5 power pins and 11 Ground pins, to ensure the SIM6600-M2 card works normally, all the pins must be connected. The connector pin is defined to support 500mA current per pin continuously. Table 7: VBAT pins electronic characteristic Symbol VBAT IVBAT(peak) Description Module power voltage Module power peak current in normal mode. IVBAT(power-off) Module power current in power off mode. Min. Typ. Max. Unit 3.135 3.7 4.4

TBD 1

V A uA 3.1.1 Power Supply Design Guide Make sure that the voltage on the VBAT pins will never drop below 3.135V, even during a transmit event, when current consumption may rise up to 1.0A. If the voltage drops below 3.135V, the module will be powered off automatically. NOTE Be sure the power supply for VBAT pins can support more than1.0A, using a total of more than 100uF capacitors is recommended, in order to avoid the voltage drop to lower than 3.135V. Some multi-layer ceramic chip (MLCC) capacitors (0.1/1uF) with low ESR in high frequency band can be used for EMC. These capacitors should be put as close as possible to VBAT pads. Also, users should keep VBAT trace on circuit board wider than 1.0 mm to minimize PCB trace impedance. The following figure shows the recommended circuit. If the VBAT generated by a switch mode power supply,it is suggested to add a bead to suppress the www.simcom.com 19 / 54 Interference.Recommend part of FB101 is BLM21PG300SN1D or MPZ2012S221A. SIM6600-M2 Hardware Design V1.00 Figure 4: Power supply application circuit NOTE 1. The test condition: The voltage of power supply for VBAT is 3.7V, Ca is 100 F tantalum capacitor

(ESR=0.7). 2. PIN3,5,71,73 are the main return current path of module,these pins should be coppered by a ground plane to main ground. 3. All other GND pins also need connect to ground. In addition, in order to guard for over voltage protection, it is suggested to use a TVS diode to protect the M.2 card.TVS diode should be placed near VBAT pins. Table 8: Recommended TVS diode list No. Manufacturer Part Number VRWM Package 1 2 3 4 JCET WAYON WILL WILL ESDBW5V0A1 WS05DPF-B ESD5611N ESD56151W05 5V 5V 5V 5V DFN1006-2L DFN1006-2L DFN1006-2L SOD-323 3.1.2 Recommended Power Supply Circuit It is recommended that a switching mode power supply or a linear regulator power supply is used. It is important to make sure that all the components used in the power supply circuit can resist the current which could be more than 1A. www.simcom.com 20 / 54 The following figure shows the linear regulator reference circuit with 5V input and 3.7V output. SIM6600-M2 Hardware Design V1.00 Figure 5: Linear regulator reference circuit If there is a high dropout between input and VBAT, or the efficiency is extremely important, then a switching mode power supply will be preferable. The following figure shows the switching mode power supply reference circuit with 12V input and 3.7V output. Figure 6: Switching mode power supply reference circuit NOTE 1. The Switching Mode power supply solution for VBAT must be chosen carefully against Electro Magnetic Interference and ripple current from depraving RF performance. 2. PWR_CTRL must connect to host in case that the module system crash. 3.2 FULL_CARD_POWER_OFF#

Module can be powered on by pulling the FULL_CARD_POWER_OFF# pin up to high level through GPIO, which is 5V tolerant. FULL_CARD_POWER_OFF# signal is an active low input signal and will turn the module on when asserted high (1.7 V) and module will disconnect usb and go to sleep mode when asserted low (0.2 V). This pin is 3.3V tolerant and can be driven by either 1.8V or 3.3V GPIO . www.simcom.com 21 / 54 SIM6600-M2 Hardware Design V1.00 Figure 7: Reference power on/sleep circuit Note: Module could be automatically power on by connecting FULL_CARD_POWER_OFF# pin to 3V3 via 0R resistor directly. NOTE 3.2.1 Power on The power-on scenarios are illustrated in the following figure. Figure 8: Power on timing sequence Table 9: Power on timing and electronic characteristic Symbol Parameter Min. Typ. Max. Unit Twait Ton(usb) VIH VIL The time which is used to wait the VBAT to be stable. TBD

The time from power-on issue to USB port ready

TBD

Input high level voltage on FUL_CARD_POWER_OFF# pin 1.0 1.8 4.4 Input low level voltage on FUL_CARD_POWER_OFF#

pin

-0.3 0 0.2 ms s V V 22 / 54 www.simcom.com SIM6600-M2 Hardware Design V1.00 3.2.2 Power off The following methods can be used to power off the card. Method 1: Power off Module by AT command . Method 2: over-voltage or under-voltage automatic power off. Method 3: over-temperature or under-temperature automatic power off. NOTE 1.The over-temperature and over-voltage function is disable by default. 2. If the temperature is outside the range of -25~+75, some warning will be reported via AT port. If the temperature is outside the range of -40~+85, Module will be powered off automatically.(if the function is enabled). 3.The power off AT command is being developed. These procedures will make the M.2 card disconnect from the network and allow the software to enter a safe state, and save data before the card be powered off completely. 3.2.3 Sleep mode When FULL_CARD_POWER_OFF# is pulled down,module will go to sleep mode,system will save power. The power off scenario by pulling down the FULL_CARD_POWER_OFF# pin is illustrated in the following figure. Figure 9: Sleep timing sequence Table 10: Sleep timing and electronic characteristic Symbol Parameter Time value Min. Typ. Max. Unit Toff(usb) The time from sleep issue to USB disconnect

TBD -

s www.simcom.com 23 / 54 SIM6600-M2 Hardware Design V1.00 3.3 Reset Function NOTE Module can be reset by pulling the RESET# pin down to ground. This function is only used as an emergency reset, when power off AT command have lost efficacy. The RESET# pin has been pulled up with a resistor to 1.8V internally, so it does not need to be pulled up externally. It is strongly recommended to put a100pF capacitor and an ESD protection diode close to the RESET# pin. Please refer to the following figure for the recommended reference circuit. Figure 10: Reference reset circuit Table 11: RESET pin electronic characteristic Symbol Treset VIH VIL Description The active low level impulse time on RESET_N pin to reset Module Input high level voltage Input low level voltage Min. Typ. Max. Unit 100 1.2

-0.3 150 500 ms 1.8 0 2.1 0.4 V V 3.4 UART interface Module provides a 2-wire UART (universal asynchronous serial transmission) interface as DCE (Data Communication Equipment). AT commands and data transmission can be performed through UART interface. The following figures show the reference design. www.simcom.com 24 / 54 SIM6600-M2 Hardware Design V1.00 Figure 11: UART modem The Module UART is 1.8V voltage interface. If users UART application circuit is 3.3V voltage interface, the level shifter circuits should be used for voltage matching. The TXB0102RGYR provided by Texas Instruments is recommended. The following figure shows the voltage matching reference design. Figure 12: Reference circuit of level shift Module supports the following baud rates: 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600. The default band rate is 115200bps. NOTE 3.5 I2C Interface Module provides an I2C interface compatible with I2C specification, version 3.0, with clock rate up to 400 kbps. Its operation voltage is 1.8V. The following figure shows the I2C bus reference design. www.simcom.com 25 / 54 SIM6600-M2 Hardware Design V1.00 Figure 13: I2C reference circuit SDA and SCL have pull-up resistors in Module,2 external pull up resistors are reserved. NOTE 3.6 WoWWAN#

The WoWWAN# pin is an open drain signal which can be used as an interrupt signal to the host. Normally it will keep high logic level until certain conditions such as receiving SMS, voice call (CSD, video) or URC reporting, then WoWWAN# will change to low logic level to inform the host (client PC), the pulse time is 1 second. Figure 14: WOWWAN# behaviourSMS and URC report WAKE_ON_WWAN Reference circuit is recommended in the following figure. www.simcom.com 26 / 54 SIM6600-M2 Hardware Design V1.00 Figure 15: WOWWAN# reference circuit 3.7 USB2.0 Interface NOTE SIM6600-M2 supports one USB2.0 interface. The module supports three USB speeds:

(1.5Mbps), full-speed (12Mbps) and high-speed (480Mbps). low-speed 1. The USB_DN and USB_DP nets must be traced by 90Ohm+/-10% differential impedance. 2. USB NOT support OTG function and USB charging function. Module is used as a USB device by default. When FULL_CARD_POWER_OFF# is pulled down,USB will disconnect

,module will go to sleep mode which can reduce power consumption.Pull high the FULL_CARD_POWER_OFF#,USB will reconnection. The reference schematic is as following:

www.simcom.com 27 / 54 SIM6600-M2 Hardware Design V1.00 Figure 16: USB reference circuit Because of the high bit rate on USB bus, more attention should be paid to the influence of the junction capacitance of the ESD component on USB data lines. Typically, for the USB2.0 signals (USB D- and USB D+), the capacitance should not be more than 3pF. It is recommended to use an ESD protection component such as ESD9M5.0ST5G provided by On Semiconductor (www.onsemi.com ). 3.8 UIM Interface Module supports both 1.8V and 3.0V UIM Cards. Table 13: UIM electronic characteristic in 1.8V mode (UIM-PWR=1.8V) Symbol Parameter Min. UIM-PWR LDO power output voltage 1.75 Typ. Max. 1.8 1.95 Unit High-level input voltage 0.65*UIM-PWR Low-level input voltage

-0.3 High-level output voltage UIM-PWR -0.45 Low-level output voltage 0 UIM-PWR +0.3 0.35*UIM-PWR UIM-PWR 0.45 Table 14: UIM electronic characteristic 3.0V mode (UIM-PWR=2.85V) Symbol Parameter Min. UIM-PWR LDO power output voltage 2.75 Typ. Max. 2.85 3.05 Unit High-level input voltage 0.65*UIM-PWR Low-level input voltage

-0.3 High-level output voltage UIM-PWR -0.45 Low-level output voltage 0 UIM-PWR +0.3 0.25*UIM-PWR UIM-PWR 0.45 VIH VIL VOH VOL VIH VIL VOH VOL V V V V V V V V V V

0

0

0

0 www.simcom.com 28 / 54 3.8.1 USIM Application Guide SIM6600-M2 Hardware Design V1.00 It is recommended to use an ESD protection component such as ESDA6V1-5W6 produced by ST

(www.st.com ) or SMF12C produced by ON SEMI (www.onsemi.com ). Note that the USIM peripheral circuit should be close to the USIM card socket. The following figure shows the 6-pin SIM card holder reference circuit. Figure 17: USIM interface reference circuit The SIM Detect pin is used for detection of the UIM card hot plug in. User can select the 8-pin UIM card holder to implement UIM card detection function. The following figure shows the 8-pin SIM card holder reference circuit. Figure 18: UIM interface reference circuit with UIM_DET If the UIM card detection function is not used, user can keep the SIM Detect pin open. 3.8.2 USIM layout guide SIM card circuit is susceptible, the interference may cause the SIM card failures or some other situations, so it is strongly recommended to follow these guidelines while designing:

Make sure that the SIM card holder should be far away from the antenna while in PCB layout. SIM traces should keep away from RF lines, VBAT and high-speed signal lines. www.simcom.com 29 / 54 SIM6600-M2 Hardware Design V1.00 The traces should be as short as possible. Keep SIM holders GND connect to main ground directly. Shielding the SIM card signal by ground. Recommended to place a 0.11uF capacitor on UIM-PWR line and keep close to the holder. The rise/fall time of UIM-CLK should not be more than 40ns. Add some TVS and the parasitic capacitance should not exceed 60pF. Module provides an I2S interface for external codec, which comply with the requirements in the Phillips I2S Bus Specifications. 3.9 I2S Interface*

NOTE

*means the I2S function is under developing. 3.10 DPR*

25 28 NOTE DPR (Dynamic Power Reduction) signal is used by SIM6600-M2 to assist in meeting regulatory SAR

(Specific Absorption Rate) requirements for RF exposure. The signal is provided by a host system proximity sensor to the wireless device to provide an input trigger causing a reduction in the radio transmit output power. The module have 2 DPR pins. User can use AT command to active this function, if do not need this function, this pin can be keep floating. Table 17: DPR interface Pin no Pin Name Pin status Function PCI_DPR1#

Low High Max transmitting power will be reduced Max transmitting power will not be reduced (default) PCI_DPR2# Floating Max transmitting power will not be reduced

* means the DRP function is under developing. www.simcom.com 30 / 54 SIM6600-M2 Hardware Design V1.00 3.11 CONFIG Pins These signals provide the means to indicate the specific configuration of the module. SIM6600-M2 is configured as WWAN-USB2.0. Table 18: CONFIG Pins Pin no Pin Name Description 21 69 75 1 CONFIG_0 CONFIG_1 CONFIG_2 CONFIG_3 Connected to GND internally. Connected to GND internally. Connected to GND internally. No Connect internally. In the M.2 specification, the 4 pins are defined as below:

Table 19: Config interface Config_0

(Pin 21) GND Config_1

(Pin 69) GND Config_2

(Pin 75) GND Config_3

(Pin 1) NC Module type and Main host interface WWAN USB 2.0 Comments Vender defined 3.12 LED1#

LED1# is open drain output and is used to allow SIM6600-M2 to provide network status via LED which will be provided by the host. Figure 19: LED1# reference circuit NOTE The value of the resistor named R depends on the LED characteristic. www.simcom.com 31 / 54 SIM6600-M2 Hardware Design V1.00 Table 20: LED1# pin status NETLIGHT pin status Module status Always On Searching Network; Call Connect(include VOLTE,SRLTE) 200ms ON, 200ms OFF Data Transmit; 4G registered;

800ms ON, 800ms OFF 3G registered network OFF Power off ;Sleep 3.13 W_DISABLE1#

The W_DISABLE1# pin controls SIM6600-M2 to enter or exit the flight mode, when the W_DISABLE1#

signal is asserted to low level, all RF functions would be disabled. When the W_DISABLE1# signal is not asserted, the RF function will be active if it was not disabled by other means such as software. Its reference circuit is shown in the following figure. Figure 20: Flight mode switch reference circuit W_DISABLE1# pin status as below:

Table 21: FLIGHTMODE pin status FLIGHTMODE pin status Input Low Level Input High Level Module operation Flight Mode: RF is closed RF is working www.simcom.com 32 / 54 SIM6600-M2 Hardware Design V1.00 3.14 ANTCTRL interface ANTCTL[0:3] are used for tunable antenna control and should be routed to anappropriate antenna control circuitry. The following table are the definitions for antenn control interfaces. Table 22: Definition of antenna control interface Pin Name Pin No. Description Comments Electrical Description DO DO DO DO Antenna tuner control0 Antenna tuner control1 Antenna tuner control2 Antenna tuner control3 1.8V voltage unused,please keep open domain.If ANTCTL0 ANTCTL1 ANTCTL2 ANTCTL3 59 61 58 56 NOTE This function is under development,for details please contact SIMCom support teams. 3.15 W_DISABLE2#

The W_DISABLE2# pin controls SIM6600-M2 to disable the GNSS function.When the W_DISABLE2#

signal the GNSS function would be disabled. SIM6600-M2 have no GNSS function,this pin is reserved. is pulled to low level, www.simcom.com 33 / 54 SIM6600-M2 Hardware Design V1.00 4 Antenna Interfaces SIM6600-M2 provides a main antenna interface, a diversity antenna interface . The antenna ports have an RF impedance of 50. 4.1 Operating Frequency Table 22: SIM6600-M2 Operating frequencies WCDMA Band Uplink (UL) WCDMA B1 WCDMA B2 WCDMA B4 WCDMA B5 WCDMA B8 LTE B1 LTE B2 LTE B3 LTE B4 LTE B5 LTE B7 LTE B8 LTE B12 LTE B13 LTE B17 LTE B18 LTE B19 LTE B20 LTE B25 LTE B26 LTE B28 LTE B29 LTE B30 LTE B66 LTE B71 LTE B34 1920 ~1980 MHz 1850 ~1910 MHz 1710 ~1755 MHz 824849 MHz 880 ~915 MHz 1920 ~1980 MHz 1850 ~1910 MHz 1710 ~1785 MHz 1710 ~1755 MHz 824849 MHz 2500~2570MHz 880 ~915 MHz 699 ~716 MHz 777 ~787 MHz 704 ~716 MHz 815 ~830 MHz 830 ~845 MHz 832~862MHz 814 ~849 MHz 703~748MHz N/A 2305 ~2315 MHz 1710 ~1780 MHz 663 ~698 MHz 2010 ~2025 MHz Downlink (DL) 2110 ~2170 MHz 1930 ~1990 MHz 2110 ~2155 MHz 869894MHz 925 ~960 MHz 2110 ~2170 MHz 1930 ~1990 MHz 1805 ~1880 MHz 2110 ~2155 MHz 869894MHz 2620~2690MHz 925 ~960 MHz 729 ~746 MHz 746 ~756 MHz 734 ~746 MHz 860 ~875 MHz 875 ~890 MHz 791~ 821MHz 859 ~894 MHz 758~803MHz 717 ~728 MHz 2350 ~2360 MHz 2110 ~2200 MHz 617 ~652 MHz 2010 ~2025 MHz 1850 ~1915 MHz 1930 ~1995 MHz Duplex Mode FDD FDD FDD FDD FDD FDD FDD FDD FDD FDD FDD FDD FDD FDD FDD FDD FDD FDD FDD FDD FDD FDD FDD FDD FDD TDD www.simcom.com 34 / 54 SIM6600-M2 Hardware Design V1.00 LTE B38 LTE B39 LTE B40 LTE B41 NOTE 2570 ~2620 MHz 1880 ~1920 MHz 2300 ~2400 MHz 2496 ~2670 MHz 2570 ~2620 MHz 1880 ~1920 MHz 2300 ~2400 MHz 2496 ~2670 MHz TDD TDD TDD TDD LTE-FDD B29 supports Rx only and is only for secondary component carrier. 4.2 Antenna Installation 4.2.1 Antenna Requirements The following table shows the requirements on main antenna and Diversity antenna. Recommended standard Omni directional

> -3dBi (Avg) Table 24:WCDMA/LTE antenna Passive Direction Gain Efficiency VSWR Input impedance Cable insertion Loss <1GHz Cable insertion Loss 1GHz~2.2GHz Cable insertion Loss 2.3GHz~2.7GHz 50

> 30 %

< 2

<1dB

<1.5dB

<2dB 4.2.2 Recommended RF Connector for Antenna Installation When choosing antennas, user should pay attentions to the connector on antenna which should match with the connector on the module. The standard 2x2 mm size RF receptacle connectors have been used on SIM6600-M2. The dimension of the connector on SIM6600-M2 is 2.0*2.0*0.6mm. www.simcom.com 35 / 54 Shows the RF connector dimension in the following figure:

SIM6600-M2 Hardware Design V1.00 Figure 21: Antenna connector The major specifications of the RF connector as below:

Table 26: the major specifications of the RF connector Item Nominal Frequency Range Nominal Impedance Temperature Rating Initial Contact Resistance

(without conductor resistance) Voltage Standing Wave Ratio (V.S.W.R.) Specification DC to 6 GHz 50

-40 to + 85 Center contact 20.0mmax. Outer contact 20.0mmax. Meet the requirements of 1.3max.(DC 1.45max.(3GHz 6GHz) 3GHz) There are two kinds of coaxial cables mating the RF connector in the SIM6600-M2, SIMCom recommend use Murata and SUZHOU KELI, and the Part Number is MXFR32HP1000 of the Murata and KLC-2058 of the KELI. www.simcom.com 36 / 54 SIM6600-M2 Hardware Design V1.00 5 Electrical Specifications 5.1 Absolute maximum ratings Absolute maximum rating for digital and analog pins of Module are listed in the following table:

Table 27:Absolute maximum ratings Parameter Voltage at VBAT pins Voltage at digital pins (GPIO,I2C,UART, I2S) Voltage at digital pins (UIM) Voltage at FULL_CARD_POWER_OFF#

Voltage at RESET#

-0.3

-0.3

-0.3

-0.3

-0.3 Min. Typ. Max. Unit

V V V 4.7 2.1 3.05 4.7 2.1 5.2 Operating conditions Table 28: Recommended operating ratings Parameter Voltage at VBAT Min. 3.135 Typ. 3.7 Max. 4.4 Unit V Table 29: 1.8V Digital I/O characteristics*

Parameter Description Max. Unit VIH VIL VOH VOL IOH IOL IIH High-level input voltage Low-level input voltage High-level output voltage Low-level output voltage High-level output current(no pull down resistor) Low-level output current(no pull up resistor) Input high leakage current pull down resistor)

(no Min. 1.17

-0.3 1.35 0

Typ. 1.8 0

TBD TBD 2.1 0.63 1.8 0.45

TBD V V V V mA mA uA www.simcom.com 37 / 54 SIM6600-M2 Hardware Design V1.00 Input low leakage current(no pull up resistor) TBD

uA IIL NOTE These parameters are for digital interface pins, such as UART, I2C, I2S, RESET#, ANTCTL and GPIOs

(DPR, SIM DETECT). The operating temperature of Module is listed in the following table. Table 30:Operating temperature Parameter Normal compliant) Extended operation temperature*

operation Storage temperature NOTE temperature(3GPP Min.

-25 TBD

-40 Typ. 25 TBD 25 Max. Unit 75 TBD 80 Module is able to make and receive voice calls, data calls, SMS and make UMTX/LTE traffic in extended operation temperature. The performance will be reduced slightly from the 3GPP specifications if the temperature is outside the normal operating temperature range and still within the extreme operating temperature range. 5.3 Operating Mode 5.3.1 Operating Mode Definition The table below summarizes the various operating modes of Module product. Table 31: Operating mode Definition*

Mode Normal operation UMTS/LTE Sleep Function AT command AT+CSCLK=1 can be used to set the module to a sleep mode. In this case, the current consumption of module will be reduced to a very low level and the module can still receive paging message and SMS. www.simcom.com 38 / 54 SIM6600-M2 Hardware Design V1.00 UMTS/LTE Idle Software is active. Module is registered to the network, and the Module is ready to communicate. UMTS/LTE Talk Connection between two subscribers is in progress. In this case, the power consumption depends on network settings such as DTX off/on, FR/EFR/HR, hopping sequences, and antenna. UMTS/LTE Standby Module is ready for data transmission, but no data is currently sent or received. In this case, power consumption depends on network settings. UMTS/LTE Data transmission There is data transmission in progress. In this case, power consumption is related to network settings (e.g. power control level); uplink/downlink data rates, etc. AT command AT+CFUN=0 can be used to set the Module to a minimum functionality mode without removing the power supply. In this mode, the the Module will not work and the USIM card will not be RF part of accessible, but the serial port and USB port are still accessible. The power consumption in this mode is lower than normal mode. AT command AT+CFUN=4 or pulling down the W_disable1# pin can be used to set the Module to flight mode without removing the power supply. In this mode, the RF part of the Module will not work, but the serial port and USB port are still accessible. The power consumption in this mode is lower than normal mode. Module will go into power off mode by sending the AT command AT+CPOF or pull down the FUL_CARD_POWER_OFF# pin, normally. In this mode the power management unit shuts down the power supply, and software is not active. The serial port and USB are is not accessible. Minimum functionality mode Flight mode Power off NOTE 5.3.2 Sleep mode These AT Command is under development,for details please contact SIMCom support teams. In sleep mode, the current consumption of Module will be reduced to a very low level, and Module can still receive paging message and SMS. Several hardware and software conditions must be satisfied in order to let Module enter into sleep mode:

1. UART condition 2. USB condition 3. Software condition NOTE Before designing, pay attention to how to realize sleeping/waking function. www.simcom.com 39 / 54 SIM6600-M2 Hardware Design V1.00 5.4 Current Consumption The current consumption is listed in the table below. Table 32:Current consumption on VBAT Pins (VBAT=3.7V) UMTS sleep mode WCDMA supply current

(without USB connection) LTE sleep mode LTE FDD supply current

(without USB connection) LTE TDD supply current

(without USB connection) UMTS Talk WCDMA B1 WCDMA B2 WCDMA B4 WCDMA B5 WCDMA B8 HSDPA data WCDMA B1 WCDMA B2 WCDMA B4 WCDMA B5 WCDMA B8 LTE data LTE-FDD B1 LTE-FDD B2 LTE-FDD B3 LTE-FDD B4 LTE-FDD B5 LTE-FDD B7 Sleep mode @DRX=9 Typical: TBD mA Idle mode@DRX=9 Typical: TBD mA Sleep mode Typical: TBD mA Idle mode Typical:TBD mA Sleep mode Typical: TBD mA Idle mode Typical:TBD mA

@Power 23dBm Typical: TBD mA

@Power 23dBm Typical: TBD mA

@Power 23dBm Typical: TBD mA

@Power 23dBm Typical: TBD mA

@Power 23dBm Typical: TBD mA

@Power 23dBm Typical: TBD mA

@Power 23dBm Typical: TBD mA

@Power 23dBm Typical: TBD mA

@Power 23dBm Typical: TBD mA

@Power 23dBm Typical: TBD mA

@5MHz 23dBm Typical: TBD mA

@10MHz 23dBm Typical: TBD mA

@20MHz 23dBm Typical: TBD mA

@5MHz 23dBm Typical: TBD mA

@10MHz 23dBm Typical: TBD mA

@20MHz 23dBm Typical: TBD mA 23dBm Typical: TBD mA

@5MHz

@10MHz 23dBm Typical: TBD mA

@20MHz 23dBm Typical: TBD mA

@5MHz 23dBm Typical: TBD mA

@10MHz 23dBm Typical: TBD mA

@20MHz 23dBm Typical: TBD mA

@5MHz 23dBm Typical: TBD mA

@10MHz 23dBm Typical: TBD mA 23dBm Typical: TBD mA

@5MHz

@10MHz 23dBm Typical: TBD mA www.simcom.com 40 / 54 LTE-FDD B8 LTE-FDD B12 LTE-FDD B13 LTE-FDD B17 LTE-FDD B18 LTE-FDD B19 LTE-FDD B20 LTE-FDD B25 LTE-FDD B26 LTE-FDD B28 LTE-FDD B29 LTE-FDD B30 LTE-FDD B66 LTE-FDD B71 LTE-TDD B34 LTE-TDD B38 LTE-TDD B39 LTE-TDD B40 LTE-TDD B41 SIM6600-M2 Hardware Design V1.00

@20MHz 23dBm Typical: TBD mA

@5MHz 23dBm Typical: TBD mA

@10MHz 23dBm Typical: TBD mA 23dBm Typical: TBD mA

@5MHz

@10MHz 23dBm Typical: TBD mA

@5MHz 23dBm Typical: TBD mA

@10MHz 23dBm Typical: TBD mA 23dBm Typical: TBD mA

@5MHz

@10MHz 23dBm Typical: TBD mA

@5MHz 23dBm Typical: TBD mA

@10MHz 23dBm Typical: TBD mA 23dBm Typical: TBD mA

@5MHz

@10MHz 23dBm Typical: TBD mA

@5MHz 23dBm Typical: TBD mA

@10MHz 23dBm Typical: TBD mA

@20MHz 23dBm Typical: TBD mA

@5MHz 23dBm Typical: TBD mA

@10MHz 23dBm Typical: TBD mA

@20MHz 23dBm Typical: TBD mA

@5MHz 23dBm Typical: TBD mA

@10MHz 23dBm Typical: TBD mA

@5MHz 23dBm Typical: TBD mA

@10MHz 23dBm Typical: TBD mA

@20MHz 23dBm Typical: TBD mA N/A

@5MHz 23dBm Typical: TBD mA

@10MHz 23dBm Typical: TBD mA

@20MHz 23dBm Typical: TBD mA

@5MHz 23dBm Typical: TBD mA

@10MHz 23dBm Typical: TBD mA

@20MHz 23dBm Typical: TBD mA 23dBm Typical: TBD mA

@5MHz

@10MHz 23dBm Typical: TBD mA

@5MHz 23dBm Typical: TBD mA

@10MHz 23dBm Typical: TBD mA

@5MHz 23dBm Typical: TBD mA

@10MHz 23dBm Typical: TBD mA

@20MHz 23dBm Typical: TBD mA

@5MHz 23dBm Typical: TBD mA

@10MHz 23dBm Typical: TBD mA

@20MHz 23dBm Typical: TBD mA

@5MHz 23dBm Typical: TBD mA

@10MHz 23dBm Typical: TBD mA

@20MHz 23dBm Typical: TBD mA 23dBm Typical: TBD mA

@5MHz

@10MHz 23dBm Typical: TBD mA

@20MHz 23dBm Typical: TBD mA 5.5 RF Output Power The following table shows the RF output power of SIM6600-M2 module. Table 33: Conducted Output Power www.simcom.com 41 / 54 SIM6600-M2 Hardware Design V1.00 Frequency Max WCDMA Bands 23dBm + 2/-2dB LTE-FDD Bands 23dBm + 2/-2dB LTE-TDD Bands 23dBm + 2/-2dB Min

< -50dBm

< -40dBm

< -40dBm 5.6 Conducted Receive Sensitivity The following tables show conducted RF receiving sensitivity of SIM6600-M2 module. Table 34:SIM6600-M2 Conducted RF Receiving Sensitivity Primary Frequency

(Typ.) TBD Diversity

(Typ.) NA WCDMA B1 TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD WCDMA B2 WCDMA B4 WCDMA B5 WCDMA B8 LTE-FDD B1(10M) LTE-FDD B2(10M) LTE-FDD B3(10M) LTE-FDD B4(10M) LTE-FDD B5(10M) LTE-FDD B7(10M) LTE-FDD B8(10M) LTE-FDD B12(10M) LTE-FDD B13(10M) LTE-FDD B17(10M) LTE-FDD B18(10M) LTE-FDD B19(10M) LTE-FDD B20(10M) LTE-FDD B25(10M) LTE-FDD B26(10M) LTE-FDD B28(10M) LTE-FDD B29(10M) LTE-FDD B30(10M) LTE-FDD B66(10M) LTE-FDD B71(10M) LTE-FDD B34(10M) LTE-FDD B38(10M) www.simcom.com NA NA NA NA TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD 42 / 54 SIM6600-M2 Hardware Design V1.00 LTE-FDD B39(10M) LTE-FDD B40(10M) LTE-FDD B41(10M) TBD TBD TBD TBD TBD TBD The data in above table are gotten at static condition. Per 3GPP specification. NOTE 5.7 ESD Module is sensitive to ESD in the process of storage, transporting, and assembling. When Module is mounted on the users mother board, the ESD components should be placed beside the connectors which human body may touch, such as USIM card holder, SD card holder, audio jacks, switches, USB interface, etc. The following table shows the Module ESD measurement performance without any external ESD component. Table 35: The ESD performance measurement table (Temperature: 25, Humidity: 45%) Contact discharge TBD Air discharge TBD FUL_CARD_POWER_OFF#

Part VBAT, GND Antenna port USB RESET_N UIM Card Other PADs TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD www.simcom.com 43 / 54 SIM6600-M2 Hardware Design V1.00 6 Appearance 6.1 Top and Bottom View of Module Figure 22: Top and bottom view of Module NOTE The above is the design effect diagram of the module for reference. The actual appearance is subject to the actual product. www.simcom.com 44 / 54 SIM6600-M2 Hardware Design V1.00 7 Packaging Module support tray packaging. Figure 23: Packaging diagram Module tray drawing www.simcom.com 45 / 54 SIM6600-M2 Hardware Design V1.00 Figure 24: Tray drawing Width3mm 165.0 Number 10 Table 36: Tray size Length3mm 245.0 Small carton drawing Figure 25: Small carton drawing Table 37: Small Carton size Length10mm Width10mm Height10mm 270 180 120 Number 10*20=200 www.simcom.com 46 / 54 Big carton drawing SIM6600-M2 Hardware Design V1.00 Figure 26: Big carton drawing Table 38:Big Carton size Length10mm Width10mm Height10mm Number 380 280 280 200*4=800 www.simcom.com 47 / 54 SIM6600-M2 Hardware Design V1.00 8 Appendix 8.1 Coding Schemes and Maximum Net Data Rates over Air Interface Table 39: Coding Schemes and Maximum Net Data Rates over Air Interface HSDPA device category Modulation type Max data ratepeak 1.2Mbps Category 1 Category 2 Category 3 Category 4 Category 5 Category 6 Category 7 Category 8 Category 9 Category 10 Category 11 Category 12 Category 13 Category 14 Category 15 Category 16 Category 17 Category 18 Category 19 Category 20 Category 21 Category 22 Category 23 Category 24 Category 1 Category 2 Category 3 Category 4 1.2Mbps 1.8Mbps 1.8Mbps 3.6Mbps 3.6Mbps 7.2Mbps 7.2Mbps 10.2Mbps 14.4Mbps 0.9Mbps 1.8Mbps 17.6Mbps 21.1Mbps 23.4Mbps 28Mbps 23.4Mbps 28Mbps 35.5Mbps 42Mbps 23.4Mbps 28Mbps 35.5Mbps 1.92Mbps 1.92Mbps 3.84Mbps 16QAM, QPSK 16QAM, QPSK 16QAM, QPSK 16QAM, QPSK 16QAM, QPSK 16QAM, QPSK 16QAM, QPSK 16QAM, QPSK 16QAM, QPSK 16QAM, QPSK QPSK QPSK 64QAM 64QAM 16QAM 16QAM 64QAM 64QAM 64QAM 64QAM 16QAM 16QAM 64QAM 64QAM QPSK QPSK QPSK QPSK HSUPA device category Modulation type 42.2Mbps Max data ratepeak 0.96Mbps www.simcom.com 48 / 54 SIM6600-M2 Hardware Design V1.00 Category 5 Category 6 LTE-FDD device category

(Downlink) Category 1 Max data ratepeak Modulation type 3.84Mbps 5.76Mbps 10Mbps 50Mbps 100Mbps 150Mbps 300Mbps 300Mbps 300Mbps 300Mbps 450Mbps 600Mbps 600Mbps 600Mbps 600Mbps 5Mbps 25Mbps 50Mbps 50Mbps 75Mbps 50Mbps 150Mbps Category 2 Category 3 Category 4 Category 5 Category 6 Category 7 Category 8 Category 9 Category 10 Category 11 Category 12 Category 2 Category 3 Category 4 Category 5 Category 6 Category 7 QPSK QPSK QPSK/16QAM/64QAM QPSK/16QAM/64QAM QPSK/16QAM/64QAM QPSK/16QAM/64QAM QPSK/16QAM/64QAM QPSK/16QAM/64QAM QPSK/16QAM/64QAM QPSK/16QAM/64QAM QPSK/16QAM/64QAM QPSK/16QAM/64QAM QPSK/16QAM QPSK/16QAM QPSK/16QAM QPSK/16QAM QPSK/16QAM QPSK/16QAM QPSK/16QAM/64QAM QPSK/16QAM/64QAM/256QAM QPSK/16QAM/64QAM/256QAM QPSK/16QAM/64QAM/256QAM Max data ratepeak Modulation type Category 13 LTE-FDD device category

(Uplink) Category 1 www.simcom.com 49 / 54 SIM6600-M2 Hardware Design V1.00 8.2 Related Documents Table 40: Related Documents NO. Title Description ITU-T Draft new recommendationV.25ter

[1]

[2]

[3]

GSM 07.07 GSM 07.10 Serial asynchronous automatic dialing and control Digital cellular telecommunications (Phase 2+); AT command set for GSM Mobile Equipment (ME) Support GSM 07.10 multiplexing protocol Digital cellular telecommunications (Phase 2+); Use of Data terminating Equipment Terminal Equipment Data Circuit

(DTE DCE) interface for Short Message Service (SMS) and Cell Broadcast Service (CBS) Digital cellular telecommunications system (Phase 2+);

Specification of the SIM Application Toolkit for the Subscriber Identity Module Mobile Equipment (SIM ME) interface telecommunications system (Phase 2+);

Digital cellular Specification of Identity Module Mobile the Subscriber Equipment (SIM ME) interface Digital cellular Alphabets and language-specific information telecommunications system (Phase 2) Digital cellular Mobile Station (MS) conformance specification Part 1:

Conformance specification Digital cellular Mobile Station (MS) conformance specification telecommunications system (Release 5);

telecommunications system (Phase 2+);

(UE) conformance specification; Part 3:

Electromagnetic Compatibility (EMC) for mobile terminals and ancillary equipment. Electromagnetic Compatibility (EMC) for mobile terminals and ancillary equipment. Technical Specification Group Radio Access Network;

Terminal conformance specification; Radio transmission and reception (FDD) User Equipment Abstract Test Suites. Electromagnetic compatibility and Radio spectrum Matters

(ERM); Base Stations (BS) and User Equipment (UE) for IMT-2000. Third Generation cellular networks; Part 2:

Harmonized EN for IMT-2000, CDMA Direct Spread

(UTRA FDD) (UE) covering essential requirements of article 3.2 of the R&TTE Directive Electromagnetic compatibility and Radio Spectrum Matters

(ERM); Electromagnetic Compatibility (EMC) standard for radio equipment and services; Part 24: Specific conditions for IMT-2000 CDMA Direct Spread (UTRA) for Mobile and portable (UE) radio and ancillary equipment Safety of information technology equipment (2000)

[4]

GSM 07.05

[5]

GSM 11.14

[6]

GSM 11.11

[7]

GSM 03.38

[8]

GSM 11.10

[9]

3GPP TS 51.010-1

[10]

3GPP TS 34.124

[11]

3GPP TS 34.121

[12]

3GPP TS 34.123-1

[13]

3GPP TS 34.123-3

[14]

EN 301 908-02 V2.2.1

[15]

EN 301 489-24 V1.2.1

[16]

IEC/EN60950-1(2001) www.simcom.com 50 / 54 SIM6600-M2 Hardware Design V1.00

[17]

3GPP TS 51.010-1

[18]

GCF-CC V3.23.1

[19]

2002/95/EC

[20]

[21]

[22]

SIM7X00 Series_UART_Application Note_V1.xx SIM7X00 Series_GPS_Application Note_V1.xx Antenna design guidelines for diversity receiver system telecommunications system (Release 5);

Digital cellular Mobile Station (MS) conformance specification Global Certification Forum - Certification Criteria Directive of the European Parliament and of the Council of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment

(RoHS) This document describes how to use UART interface of SIMCom modules. GPS Application Note Antenna design guidelines for diversity receiver system www.simcom.com 51 / 54 SIM6600-M2 Hardware Design V1.00 Data Terminal Equipment (typically computer, terminal, printer) 8.3 Terms and Abbreviations Table 41:Terms and Abbreviations Abbreviation Description ADC ARP BER BTS CS CSD CTS DAC DRX DSP DTE DTR DTX EFR EGSM EMC ESD ETS EVDO FCC FD FDMA FR GMSK GNSS GPRS GPS GSM HR HSPA HSIC I2C IMEI LTE MDIO Analog-to-Digital Converter Antenna Reference Point Bit Error Rate Base Transceiver Station Coding Scheme Circuit Switched Data Clear to Send Digital-to-Analog Converter Discontinuous Reception Digital Signal Processor Data Terminal Ready Discontinuous Transmission Enhanced Full Rate Enhanced GSM Electromagnetic Compatibility Electrostatic Discharge European Telecommunication Standard Evolution Data Only Federal Communications Commission (U.S.) SIM fix dialing phonebook Frequency Division Multiple Access Full Rate Gaussian Minimum Shift Keying Global Navigation Satellite System General Packet Radio Service Global Positioning System Global Standard for Mobile Communications Half Rate High Speed Packet Access High-speed Inter-chip Inter-Integrated Circuit International Mobile Equipment Identity Long Term Evolution Management Data Input/Output www.simcom.com 52 / 54 SIM6600-M2 Hardware Design V1.00 MMD MO MS MT NMEA PAP PBCCH PCB PCS RF RMS RTC SIM SMS SPI SMPS TDMA TE TX UART VSWR SM SGMII NC EDGE HSDPA HSUPA ZIF WCDMA VCTCXO USIM UMTS UART MDIO manageable device Mobile Originated Mobile Station (GSM engine), also referred to as TE Mobile Terminated National Marine Electronics Association Password Authentication Protocol Packet Switched Broadcast Control Channel Printed Circuit Board Personal Communication System, also referred to as GSM 1900 Radio Frequency Root Mean Square (value) Real Time Clock Subscriber Identification Module Short Message Service serial peripheral interface Switched-mode power supply Time Division Multiple Access Terminal Equipment, also referred to as DTE Transmit Direction Universal Asynchronous Receiver & Transmitter Voltage Standing Wave Ratio SIM phonebook Serial gigabit media independent interface Not connect Enhanced data rates for GSM evolution High Speed Downlink Packet Access High Speed Uplink Packet Access Zero intermediate frequency Wideband Code Division Multiple Access Voltage control temperature-compensated crystal oscillator Universal subscriber identity module Universal mobile telecommunications system Universal asynchronous receiver transmitter www.simcom.com 53 / 54 8.4 Safety Caution Table 42:Safety Caution Marks SIM6600-M2 Hardware Design V1.00 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 and not operate normally due to RF energy interference. Switch off the cellular terminal or mobile before boarding an aircraft. Make sure it is switched off. The operation of wireless appliances in an aircraft is forbidden to prevent interference with communication systems. Forgetting to think much of these instructions may impact the flight safety, or offend local legal action, or both. Do not operate the cellular terminal or mobile in the presence of flammable gases or fumes. Switch off the cellular terminal when you are near petrol stations, fuel depots, chemical plants or where blasting operations are in progress. Operation of any in potentially explosive atmospheres can constitute a safety electrical equipment hazard. Your cellular terminal or mobile receives and transmits radio frequency energy while is used close to TV sets, radios, switched on. RF interference can occur if computers or other electric equipment. it Road safety comes first! Do not use a hand-held cellular terminal or mobile when driving a vehicle, unless it is securely mounted in a holder for hands free operation. Before making a call with a hand-held terminal or mobile, park the vehicle. GSM cellular terminals or mobiles operate over radio frequency signals and cellular networks and cannot be guaranteed to connect in all conditions, especially with a mobile fee or an invalid SIM card. While you are in this condition and need emergent help, please remember to use emergency calls. In order to make or receive calls, the cellular terminal or mobile must be switched on and in a service area with adequate cellular signal strength. Some networks do not allow for emergency call if certain network services or phone features are in use (e.g. lock functions, fixed dialing etc.). You may have to deactivate those features before you can make an emergency call. Also, some networks require that a valid SIM card be properly inserted in the cellular terminal or mobile. www.simcom.com 54 / 54 FCC Statement This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) thi s device may not cause harmful interference, and (2) this device must accept any interference received, incl uding interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursua nt to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful inte rference in a residential installation. This equipment generates uses and can radiate radio frequency energy a nd, if not installed and used in accordance with the instructions, may cause harmful interference to radio com munications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turn ing the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help important announcement Important Note:

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. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Country Code selection feature to be disabled for products marketed to the US/Canada. This device is intended only for OEM integrators under the following conditions:

1. The antenna must be installed such that 20 cm is maintained between the antenna and users, and 2. The transmitter module may not be co-located with any other transmitter or antenna, As long as the three conditions above are met, further transmitter testing will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed. Important Note:

In the event that these conditions cannot be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authorization is no longer considered valid and the FCC ID cannot be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. End Product Labeling The final end product must be labeled in a visible area with the following" Contains FCC ID: 2AJYU-8MH0011"

Manual Information to the End User The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module in the users manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual. Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01 2.2 List of applicable FCC rules CFR 47 FCC PART 15 SUBPART C has been investigated. It is applicable to the modular transmitter 2.3 Specific operational use conditions This module is stand-alone modular. If the end product will involve the Multiple simultaneously transmitting condition or different operational conditions for a stand-alone modular transmitter in a host, host manufacturer have to consult with module manufacturer for the installation method in end system. 2.4 Limited module procedures Not applicable 2.5 Trace antenna designs Not applicable 2.6 RF exposure considerations 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 & your body. 2.7 Antennas This radio transmitter FCC ID: 2AJYU-8MH0011 has been approved by Federal Communications Commission to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device. Antenna No. WCDMA Model No. of antenna:

Type of antenna:

External Antenna LTE

External Antenna Frequency range:

Gain of the antenna

(Max.) 1.00dBi for WCDMA Band 2/4/5;

1.00dBi for LTE Band 2, 4, 5, 7, 12, 13, 17, 25, 26, 30,38, 40, 41, 66, 71 2.8 Label and compliance information The final end product must be labeled in a visible area with the following" Contains FCC ID: 2AJYU-8MH0011". 2.9 Information on test modes and additional testing requirements Host manufacturer is strongly recommended to confirm compliance with FCC requirements for the transmitter when the module is installed in the host. 2.10 Additional testing, Part 15 Subpart B disclaimer Host manufacturer is responsible for compliance of the host system with module installed with all other applicable requirements for the system such as Part 15 B.

FCC ID: 2AJYU-8MH0011 Label and Location Model No.: SIM6600-M2 FCC ID : 2AJYU-8MH0011 Size: L: 2.0cm*W: 1.0cm Label and Location

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2022-7-5>

Pursuant to Paragraphs 0.457 and 0.459 of the Commissions Rules (47 C.F.R.) and Section 552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products:

FCC ID 2AJYU-8MH0011 Model name SIM6600-M2 For the product stated above, we request that the following information be held confidential;

Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos Users Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title Yongsheng Li/Manager Company:

Address:

Phone:

Fax:

E-Mail:

SIMCom Wireless Solutions Limited Building 3, No.289 Linhong Road Shanghai China

+86 21 3252 3134

+86 21 3252 3020 yongsheng.li@simcom.com

SIMCom Wireless Solutions Limited Building 3, No.289 Linhong Road Shanghai China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 To whom it may concern:

2022-7-5 We, the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2AJYU-8MH0011 including the signing of Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect all documents related to these matters. as acts of our own. By signing this application form, we agree to Eurofins current valid General Terms and Conditions

(AGB),Testing and Certification Regulations (PZO) which can be viewed on following website www.eurofins.de/ee or retrieved on request. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title Company:

Address:

Phone:

Fax:

E-Mail:

Yongsheng Li/Manager SIMCom Wireless Solutions Limited Building 3, No.289 Linhong Road Shanghai China

+86 21 3252 3134

+86 21 3252 3020 yongsheng.li@simcom.com

Yes. SIMCom Wireless Solutions Limited Building 3, No.289 Linhong Road Shanghai China Request Single Modular Transmitter Approval Date: 2022-7-5 To:

Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Subjects: Request Single Modular Transmitter Approval The Device,FCC ID: 2AJYU-8MH0011, is seeking FCC authorization as a modular transmitter. The EUT meets the requirement for modular approval as detailed in FCC Public Notice DA 00-1407. Compliance to each of the requirement is described below:

(a) The radio elements must have the radio frequency circuitry be shielded. Physical/discrete and tuning capacitors may be located external to the shield, but must be on the module assembly. The modular with a shield.

(b) The module shall have buffered modulation/data input(s) (if such inputs are provided) to ensure that the module will comply with the requirements set out in the applicable RSS standard under conditions of excessive data rates or over-modulation.

(c) The module shall have its own power supply regulation on the module. This is to ensure that the module will comply with the requirements set out in the applicable standard regardless of the design of the power supplying circuitry in the host device which houses the module. The modular has an onboard 3.3V regulator(integrated in MT8766).

(d) The module shall comply with the provisions for external power amplifiers and antennas detailed in this standard. The equipment certification submission shall contain a detailed description of the configuration of all antennas that will be used with the module. The modular has two External Antennas(Main&Diversity antenna) which comply with the antenna requirement of Section 15.203.

(e) The module shall be tested for compliance with the applicable standard in a stand-alone configuration, i.e. the module must not be inside another device during testing. The modular was tested in a standalone configuration apart from host units.

(f) The module shall comply with the Category I equipment labeling requirements and CFR 15.212(a)(1)(vi). The modular has its own FCC ID number.

(g) The module shall comply with any applicable FCC RF exposure requirement which are based on the intended use/configurations. Yes, RF cexposure evaluation performed at 20cm.

(h) The modular transmitter complies with all applicable FCC rules. Instructions for maintaining compliance are given in the user instructions. Yes If you have any questions, please feel free to contact us at the address shown below Sincerely Name/Title Yongsheng Li/Manager Company:

Address:

Phone:

Fax:

E-Mail:

SIMCom Wireless Solutions Limited Building 3, No.289 Linhong Road Shanghai China

+86 21 3252 3134

+86 21 3252 3020 yongsheng.li@simcom.com