FCC ID: ZMONL668LA01 NB-IoT Module

69100.1000.00.02.61.34_DEMO"

NL668- LA-01 Hardware User Manual V1.0.0 2017.12.24 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 1 of 60 Applicability type No. Product model Description NL668-LA-01 MCP is 4+2support MAIN_ANT, DIV_ANT 1 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 2 of 60 Copyright Copyright 2019 Fibocom Wireless Inc. All rights reserved. Without the prior written permission of the copyright holder, any company or individual is prohibited to excerpt, copy any part of or the entire document, or transmit the document in any form. The document is subject to update from time to time owing to the product version upgrade or other reasons. Unless otherwise specified, the document only serves as the user guide. All the statements, information and suggestions contained in the document do not constitute any explicit or implicit The trademark is registered and owned by Fibocom Wireless Inc. Version Author Assessor Approver Update Date Description V1.0.0 Gaoying Tumin Chenguojiang 2019-06-06 Initial version V1.0.1 Liuqiang Lixiyi Chenguojiang 2019-07-09 Update RF parameters V1.0.2 Tan Lefan Hu Wenkai Luke Liu 2019-10-09 of boot_config1, 2, 3 pins V1.0.3 Lee Du Hu Wenkai Luke Liu 2020-01-10 Add model NL668-LA-01 V1.0.4 Hu Wenkai Lee Du Luke Liu 2020-03-13 Modify module size. Increase the requirements forbidden to pull up externally. update Power consumption Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 3 of 60 Notice guarantee. Trademark Versions Content Figure Index ........................................................................................................................ 7 Table Index .......................................................................................................................... 8 1 Introduction ................................................................................................................ 12 Document Introduction................................................................................................ 12 Safety precautions ...................................................................................................... 12 2 Product Overview ....................................................................................................... 14 Product Introduction ................................................................................................... 14 Product Specification .................................................................................................. 14 Functional Diagram .................................................................................................... 15 Evaluation Board ........................................................................................................ 16 3 Pin Description ........................................................................................................... 17 Pin Assignment ........................................................................................................... 17 Pin function ................................................................................................................. 17 4 Electrical characteristics ........................................................................................... 24 Power ......................................................................................................................... 24 Power supply .............................................................................................................. 24 1.8V output ................................................................................................................. 25 Power consumption .................................................................................................... 25 5 Functional interface ................................................................................................... 28 5.1 Control interface ......................................................................................................... 28 1.1 1.2 2.1 2.2 2.3 2.4 3.1 3.2 4.1 4.2 4.3 4.4 5.1.1 Power on/off .................................................................................................................. 28 5.1.2 RESET .......................................................................................................................... 30 5.2 Network status indicate interface ................................................................................ 32 5.2.1 Interface status description ........................................................................................... 32 5.3

(U)SIM card interface ................................................................................................. 33 5.3.1

(U)SIM pin definition...................................................................................................... 33 5.3.2

(U)SIM interface circuit ................................................................................................. 34 5.3.3

(U)SIM hot plug ............................................................................................................. 35 5.3.4

(U)SIM design requirements ......................................................................................... 36 5.4 USB interface ............................................................................................................. 37 5.4.1 USB Pin definition ......................................................................................................... 37 5.5 UART Interface ........................................................................................................... 37 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 4 of 60 5.5.1 UART interface definition .............................................................................................. 37 5.5.2 UART port application ................................................................................................... 38 ADC interface ............................................................................................................. 39 PCM interface ............................................................................................................. 39 5.7.1 Support model ............................................................................................................... 39 5.7.2 PCM interface definition ................................................................................................ 40 5.7.3 PCM interface description ............................................................................................. 40 5.7.4 PCM signal description ................................................................................................. 40 6 Low power consumption ........................................................................................... 42 Airplane mode ............................................................................................................ 42 Sleep mode ................................................................................................................ 42 6.2.1 USB Applicationnonsupport USB suspend, support VBUS .................................. 42 6.2.2 USB application (nonsupport USB suspend, nonsupport VBUS) ................................ 43 6.2.3 USB application (Supports USB Suspend) ................................................................... 43 6.2.4 UART application ( WAKEUP_IN pin level control ) ..................................................... 43 6.2.5 UART application ( DTR pin level control ) ................................................................... 44 6.2.6 ATS24 Command .......................................................................................................... 44 7 RF interface................................................................................................................. 46 Operating band ........................................................................................................... 46 Output power .............................................................................................................. 46 Receive Sensitivity ..................................................................................................... 47 GNSS Receiver .......................................................................................................... 48 7.4.1 GNSS specification ....................................................................................................... 48 7.4.2 GNSS observes protocol .............................................................................................. 48 7.5 Antenna design .......................................................................................................... 48 7.5.1 Antenna index ............................................................................................................... 48 7.5.2 Antenna reference design ............................................................................................. 50 8 Reliability .................................................................................................................... 52 8.1 Limiting voltage range ................................................................................................ 52 8.1.1 Absolute voltage range ................................................................................................. 52 8.1.2 Operating voltage range ............................................................................................... 52 Environment temperature range ................................................................................. 52 Environmental reliability requirements ........................................................................ 53 ESD characteristics .................................................................................................... 53 5.6 5.7 6.1 6.2 7.1 7.2 7.3 7.4 8.2 8.3 8.4 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 5 of 60 9 Structure specification .............................................................................................. 55 Structure dimension .................................................................................................... 55 PCB Soldering Pad and Stencil Design ...................................................................... 55 SMT............................................................................................................................ 55 Carrier and storage ..................................................................................................... 55 Approval ............................................................................................................... 56 Appendix ............................................................................................................... 57 11.1 Terms and acronyms .................................................................................................. 57 11.2 Related Document ...................................................................................................... 59 Reference Standards .................................................................................................. 59 Contact ....................................................................................................................... 60 9.1 9.2 9.3 9.4 11.3 11.4 10 11 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 6 of 60 Figure Index Figure 2-1 Functional Diagram ........................................................................................................... 16 Figure 3-1 Pin Assignment (Top View Diagram) ................................................................................. 17 Figure 4-1 Recommend Power Design .............................................................................................. 24 Figure 4-2 Power Limit .......................................................................... Error! Bookmark not defined. Figure 5-1 OC Drive Power on Reference Circuit .............................................................................. 28 Figure 5-2 Button Switch Power on Reference Circuit ....................................................................... 29 Figure 5-3 Power on Timing ................................................................................................................ 29 Figure 5-4 Power off Timing ................................................................................................................ 30 Figure 5-5 OC Driven Reset Reference Circuits ................................................................................ 31 Figure 5-6 Button Reset Reference Circuits ....................................................................................... 31 Figure 5-7 Reset Timing...................................................................................................................... 32 Figure 5-8 Network Indicate Light Reference Circuits ........................................................................ 33 Figure 5-9 (U)SIM Card Connector (SIM016-8P-220P) ..................................................................... 34 Figure 5-10 (U)SIM Card Connector with Detection Signal Reference Circuit .................................. 35 Figure 5-11 (U)SIM Card Connector without Detection Signal Reference Circuit ............................. 35 Figure 5-12 UART Level Translate Reference 1 ................................................................................ 38 Figure 5-13 UART Level Translate Reference 2 ................................................................................ 39 Figure 5-14 PCM_SYNC Timing ......................................................................................................... 40 Figure 5-15 PCM_CODEC to NL668-LA Timing ................................................................................ 41 Figure 5-16 NL668-LA to PCM_CODEC Timing ................................................................................ 41 Figure 7-1 Main and diversity Antenna Reference Circuit .................................................................. 50 Figure 7-2 GNSS Antenna Reference Circuit ..................................................................................... 51 Figure 9-1 Structure Dimension (Unit: mm) .......................................... Error! Bookmark not defined. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 7 of 60 Table Index Table 2-1 Product Specification .......................................................................................................... 15 Table 3-1 I/O Description Parameters ................................................................................................ 18 Table 3-2 Pin function description ....................................................................................................... 23 Table 4-1 Power Interface ................................................................................................................... 24 Table 4-2 Filter Capacitors Design of Power Supply .......................................................................... 25 Table 4-3 VDD_EXT Logic Level ........................................................................................................ 25 Table 4-4 Power Consumption ............................................................................................................ 27 Table 5-1 Control Signal...................................................................................................................... 28 Table 5-2 Power off ............................................................................................................................. 30 Table 5-3 Reset ................................................................................................................................... 31 Table 5-4 Network Status Indicate ...................................................................................................... 32 Table 5-5 Network Indicate Light Work Status .................................................................................... 33 Table 5-6 (U)SIM Card Pin .................................................................................................................. 33 Table 5-7 (U)SIM Card Hot Plug Function Configured ....................................................................... 36 Table 5-8 USIM_PRESENCE Effective Level Switched ..................................................................... 36 Table 5-9 USB Pin Definition .............................................................................................................. 37 Table 5-10 Main Serial Port ................................................................................................................ 38 Table 5-11 Debug Serial Port .............................................................................................................. 38 Table 5-12 ADC Pin Definitation ......................................................................................................... 39 Table 5-13 Support Model of PCM...................................................................................................... 39 Table 5-14 PCM Pin Definition ............................................................................................................ 40 Table 5-15 PCM Interface Description ................................................................................................ 40 Table 5-16 Codec Timing Parameters ................................................................................................ 41 Table 6-1 W_DISABLE# Pin Description ............................................................................................ 42 Table 6-2 Module Enter Airplane Mode Ways .................................................................................... 42 Table 7-1 RF Interface ........................................................................................................................ 46 Table 7-2 Operating Band ................................................................................................................... 46 Table 7-3 Output Power ...................................................................................................................... 47 Table 7-4 Receive Sensitivity .............................................................................................................. 47 Table 7-5 GNSS Specification ............................................................................................................ 48 Table 7-6 Main Antenna Requirements .............................................................................................. 50 Table 8-1 Absolute Voltage Range ..................................................................................................... 52 Table 8-2 Operating Voltage Range ................................................................................................... 52 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 8 of 60 Table 8-3 Environment Temperature Range ....................................................................................... 53 Table 8-4 Environmental Reliability Requirements ............................................................................. 53 Table 8-5 ESD Allowable Discharge Range ....................................................................................... 54 Table 10-1 Approval ............................................................................................................................ 56 Table 11-1 Terms and Acronyms ......................................................... Error! Bookmark not defined. Federal Communication Commission Interference Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1 This device may not cause harmful interference, and (2) this device must accept any interference received, Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 9 of 60 including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. 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 turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:

1 Reorient or relocate the receiving antenna. 2 Increase the separation between the equipment and receiver. 3 Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. 4 Consult the dealer or an experienced radio/TV technician for help. FCC Caution:

1 Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. 2 This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 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. 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 the maximum antenna gain allowed for use with this device is 3dBi. 2) The transmitter module may not be co-located with any other transmitter or antenna. As long as 2 conditions above are met, further transmitter test 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 can not 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 can not 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 This transmitter module is authorized only for use in device where the antenna may be installed such that 20 cm may be maintained between the antenna and users. The final end product must be labeled in a visible area with the following: Contains FCC ID: ZMONL668LA01. The grantee's FCC ID can be used only when all FCC compliance requirements are met. Manual Information To the End User Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 10 of 60 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. CE The Module device should be used with a separation distance of 20 cm to the human body. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 11 of 60 1 Introduction 1.1 Document Introduction This document describes the electrical characteristics, RF performance, structure size, application environment, etc. of NL668-LA module. With the assistance of the document and other instructions, the developers can quickly understand the hardware functions of the NL668-LA module and develop products. 1.2 Safety precautions By following the safety guidelines below, you can protect the personal safety and help protect the product and work environment from potential damage. Product manufacturers need to communicate the following safety instructions to end users. In case of failure to comply with these safety rules, Fibocom Wireless will not be responsible for the consequences caused by the users misuse. Road safety first! When you drive, do not use the handheld devices even if it has a hand-

free feature. Please stop and call!

Please turn off the mobile device before boarding. The wireless feature of the mobile device is not allowed on the aircraft to prevent interference with the aircraft communication system. Ignoring this note may result in flight safety issue or even breaking the law. When in a hospital or health care facility, please be aware of restrictions on the use of mobile devices. Radio frequency interference may cause medical equipment to malfunction, so it may be necessary to turn off the mobile device. The mobile device does not guarantee that an effective connection can be made under any circumstances, for example, when there is no prepayment for the mobile device or the (U)SIM is invalid. When you encounter the above situation in an emergency, remember to use an emergency call, while keeping your device turned on and in areas where signal is strong. Your mobile device receives and transmits RF signals when it is powered on. Radio interference occurs when it is near televisions, radios, computers, or other electronic devices. Keep the mobile device away from flammable gases. Turn off the mobile device when Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 12 of 60 near gas stations, oil depots, chemical plants or explosive workplaces. There is a safety hazard in operating electronic equipment in any potentially explosive environment. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 13 of 60 2 Product Overview 2.1 Product Introduction The NL668-LA-01 wireless module is a broadband wireless terminal product applicable to various network formats and multi-bands include FDD-LTE /WCDMA 2.2 Product Specification Specification NL668-LA-01 LTE FDD: Band 1,2,3,4,5,7,8,20,28 WCDMA/HSPA+: Band 1,2,5,8 LTE FDD 150Mbps DL/50Mbps UL (Cat 4) LTE Downlink MIMO Rel.9 22,42 (support part of R10) Data transmission UMTS:384 kbps DL/384 kbps UL DC-HSDPA+:42MbpsDL (Cat24)/HSUPA:5.76Mbps UL Power 3.3V4.3V (Typical 3.8V) Temperature Extended:-40C+85C WCDMA Rel.8

(Cat 6) Normal: -30C+75C Storage:-40C+90C Base current: <2mA Power consumption Sleep mode: 4mA Idle mode: <20mA (USB sleep), <30mA (USB wakeup) Package: LCC+LGA 144 Pin Physical characteristics Size: (32.00.15) mm (29.00.15) mm (2.40.2) mm Interface Antenna Functional Interface Weight: About 5.2g Antenna: Main, GNSS, DIV

(U)SIM 3.0V/1.8V USB 2.0 Status Indicator UART x 2, PCM, I2C, SGMII, SPI, SDIO, GPIOs Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 14 of 60 ADC x 2 Software Protocol Stack Embedded TCP/IP and UDP/IP protocol stack AT Command 3GPP TS 27.007 and 27.005, and proprietary FIBOCOM AT Firmware update USB (UART does not support DOWNLOAD) Voice service Call Waiting and Multi-Talk, etc. VoLTE, HR, FR, EFR, AMR, DTMF, Caller ID, Call Transfer, Call Hold, SMS point-to-point MO, MT; cell broadcast; support Text and PDU modes Note:

Table 2-1 Product Specification When the temperature is beyond the normal operating temperature range (-30 C to + 75 C), the RF performance of the module may slightly exceed the 3GPP specification. 2.3 Functional Diagram Functional diagram shows the main hardware features of the NL668-LA-01 module, including baseband USB, (U)SIM, PCM, I2C, SPI, UART, SGMII, SDIO, GPIOs WCDMA/ LTE FDD controller and RF features. Baseband includes:

PMIC MCP RF includes:

RF Transceiver RF PA RF filter Antenna Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 15 of 60 Figure 2-1 Functional Diagram Fibocom provide EVK-GT8230-NL, ADP-NL668-LA-01-00 evaluation board to convenient module's 2.4 Evaluation Board debug and use. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 16 of 60 3 Pin Description 3.1 Pin Assignment The NL668-LA-01 module is available in 144 pins. The numbers of the LCC pins are 80, and the LGA pins are 64. the top view of the pin assignment is shown as follow figure:

Figure 3-1 Pin Assignment (Top View Diagram) Note: 85 ~112 is the thermal pin, and the module is grounded internally. It is recommended that the heat sink pad is reserved for PCB packaging and welded. 3.2 Pin function Symbol IO DI Description Input/Output Digital input Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 17 of 60 Symbol DO PI PO AI AO OD OC Description Digital output Power input Power output Analog input Analog output Open drain Open collector Table 3-1 I/O Description Parameters The pin function description of NL668-LA-01 module is shown as table 3-2:

Pin Num Pin Name I/O Level Description 1 WAKEUP_IN VILmin=-0.3V External device wake-up module, low VILmax=0.6V active by default. with software VIHmin=1.2V programmable option. Boot_config GPIO, VIHmax=2.0V forbidden to pull-up externally. I I

I VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V AP_READY Reserved RESERVED

Reserved W_DISABLE#

Module flight mode control. pull up by default. Pull down this pin, module enter airplane mode NET_MODE O VOHmin=1.35V Boot_config GPIO, forbidden to pull-up VOLmax=0.45V Module network state indicate (by default), NET_STATUS O Module network state indicate externally. VOLmax=0.45V VOHmin=1.35V VDD_EXT PO 1.8V Module digital level, 1.8V output, 80mA GND GND GND

G G G I Ground Ground Ground DBG_RXD VILmin=-0.3V Debug serial port receive data 2 3 4 5 6 7 8 9 10 11 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 18 of 60 Pin Num Pin Name I/O Level Description 12 DBG_TXD O Debug serial port transmit data 13 USIM_PRESENCE I

(U)SIM card hot plug detection 14 USIM_VDD PO For 3.0V (U)SIM:

(U)SIM power, identify 1.8V or 3V (U)SIM card automatically 15 USIM_DATA IO

(U)SIM data signal 16 USIM_CLK O

(U)SIM clock signal 17 USIM_RST O VOHmin=1.35V

(U)SIM reset signal Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 19 of 60 VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VOLmax=0.45V VOHmin=1.35V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V For 1.8V (U)SIM:

Vmax=1.9V Vmin=1.7V Vmax=3.05V Vmin=2.7V IOmax=50mA For 1.8V (U)SIM:

VILmax=0.6V VIHmin=1.2V VOLmax=0.45V VOHmin=1.35V For 3.0V (U)SIM:

VILmax=1.0V VIHmin=1.95V VOLmax=0.45V VOHmin=2.55V For 1.8V (U)SIM:

VOLmax=0.45V VOHmin=1.35V For 3.0V (U)SIM:

VOLmax=0.45V VOHmin=2.55V For 1.8V (U)SIM:

VOLmax=0.45V For 3.0V (U)SIM:

VOLmax=0.45V Pin Num Pin Name I/O Level Description 18 19 20 NC GND

G

NC Ground RESET_N I VIHmin=1.3V 21 PWRKEY I VIHmin=1.3V 22 23 GND SD_INS_DET

Ground Reserved 24 PCM_IN PCM input signal 25 PCM_OUT PCM output signal Module reset signal, active low, no need pull up externally Module power on/off signal, active low, no need pull up externally. Because the internal diode drop. the voltage of the pin is 0.8V after power the module. 26 PCM_SYNC IO PCM synchronization signal G I I O VOHmin=2.55V VIHmax=2.1V VILmax=0.5V VIHmax=2.1V VILmax=0.5V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VOLmax=0.45V VOHmin=1.35V VOLmax=0.45V VOHmin=1.35V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VOLmax=0.45V VOHmin=1.35V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V 27 PCM_CLK IO PCM clock signal 28 29 30 31 32 33 34 SDC2_DATA3 SDC2_DATA2 SDC2_DATA1 SDC2_DATA0 SDC2_CLK SDC2_CMD IO IO IO IO O IO

VREG_L13_2P85 PO Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 20 of 60 Pin Num Pin Name I/O Level Description ANT_DIV GND SPI_CS_N SPI_MOSI SPI_MISO SPI_CLK I2C_SCL I2C_SDA NC ADC1 ADC0 GND GND GND GND GND GND GND NC GND ANT_GNSS ANT_MAIN IO OD OD I

O O I O

I I I

G G G G G G

G

35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 I2C interface clock signal I2C interface data signal NC Analog to digital converter interface1 Analog to digital converter interface 0 Diversity antenna Ground Reserved Reserved Reserved Reserved Ground GNSS antenna Ground Main antenna Ground Ground Ground Ground Ground NC Ground Vmax=4.3V Vnorm=3.8V Vmax=4.3V Vnorm=3.8V Vmax=4.3V Vnorm=3.8V Vmax=4.3V Vnorm=3.8V VOHmin=1.35V VOLmax=0.45V VBAT_RF PI Vmin=3.3V RF power input (3.3V~4.3V) 58 VBAT_RF PI Vmin=3.3V RF power input (3.3V~4.3V) 59 VBAT_BB PI Vmin=3.3V Baseband power input3.3V~4.3V 60 VBAT_BB PI Vmin=3.3V Baseband Power Input (3.3V~4.3V) 61 STATUS O Module network state indicate Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 21 of 60 Pin Num Pin Name I/O Level Description 62 63 64 RI DCD CTS Module output ring indicator Module output data carrier detection Request to send 65 RTS Clear to send VOLmax=0.45V VOHmin=1.35V VOLmax=0.45V VOHmin=1.35V VOLmax=0.45V VOHmin=1.35V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VOLmax=0.45V VOHmin=1.35V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V Conform to specification Conform to specification Vmax=5.25V Vnorm=5.0V

O O O I I O I G

I G 66 DTR Data ready. The control of the sleep mode 67 TXD Transmit data 68 RXD Receive data 69 USB_DP IO USB2.0 standard USB differential data bus (+) 70 USB_DM IO USB2.0 standard USB differential data bus (-) 71 USB_VBUS PI Vmin=3.0V USB plug detection 72,76 73,82 GND RESERVED 74,75,77~

81,83,84 85~112 GND NC NC NC 113 114 115 Ground Reserved NC GND NC NC USB_BOOT VILmin=-0.3V Emergency download, active high, Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 22 of 60 Pin Num Pin Name I/O Level Description VILmax=0.6V recommended to reserve test point VIHmin=1.2V VIHmax=2.0V NC RESERVED WLAN_SLP_CLK EPHY_RST_N EPHY_INT_N SGMII_MDATA SGMII_MCLK SGMII_TX_M SGMII_TX_P SGMII_RX_P SGMII_RX_M PM_ENABLE VREG_L5_UIM2 SDC1_DATA3 SDC1_DATA2 SDC1_DATA1 SDC1_DATA0 SDC1_CLK SDC1_CMD WAKE_WLAN WLAN_EN BT_EN NC RESERVED RESERVED RESERVED RESERVED

O O I IO O O O I I IO IO IO IO O O I O O PO O

116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 NC Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved NC Reserved Reserved Reserved Reserved COEX_UART_RXD I COEX_UART_TXD O Reserved, Boot_config GPIO, forbidden to pull-up externally. Table 3-2 Pin function description Note:

Keep the unused pins floating. The reserved pins are in development Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 23 of 60 4 Electrical characteristics 4.1 Power Table 4-1 show the power interface of NL668-LA-01 module. Pin Name I/O Pin Description VBAT_RF VBAT_BB PI PI 57,58 59,60 Module power supply, 3.3V~4.3V, typical value 3.8V Module power supply, 3.3V~4.3V, typical value 3.8V VDD_EXT PO 7 Module digital voltage output, 1.8V, 80mA GND G All GND pins must be grounded 8,9,10,19,22,36,46,48,50~

54,56,72,76,85~112 Note:

Table 4-1 Power Interface In the rest of the document, VBAT includes VBAT_BB and VBAT_RF. 4.2 Power supply shown in Figure 4-1:

The NL668-LA-01 module needs to be powered by the VBAT pin. The recommend power design is Figure 4-1 Recommend Power Design Table 4-1 is the filter capacitors design of power supply:

Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 24 of 60 Recommended capacitor Application Description 220uF x 2 Regulating capacitor LDO or DCDC power requires not Reduce power fluctuations during module operation, requiring low ESR Capacitor less than 440uF capacitor Battery power can be properly reduced to 100uF ~ 220uF capacitor Filter clock and digital signal interference 1uF,100nF Digital signal noise 39pF,33pF 700, 850/900 MHz bands Filter low band RF interference 18pF,8.2pF,6.8pF 1700/1800/1900,2100/2300,2500/

Filter middle/high band RF 2600MHz bands interference Table 4-2 Filter Capacitors Design of Power Supply The power stability can ensure the normal operation of NL668-LA module. The power supply ripple limit for the module is no more than 300mV (the circuit ESR < 100m) requires special attention when design circuit. 4.3 1.8V output The NL668-LA-01 module outputs a 1.8V voltage through the VDD_EXT for the use of the internal digital circuit of module. The voltage is the logic level of the module and can be used to indicate module Power on/off, or for external low current (<80mA) circuits. leave the signal floating if no use. The logic level of VDD_EXT is defined as follows:

Parameter VDD_EXT Minimum Typical Maximum Unit 1.71 1.8 1.89 V Table 4-3 VDD_EXT Logic Level 4.4 Power consumption The power consumption of NL668-LA-01 module measured at 3.8V power supply is shown as follow table, for USB sleep and USB wakeup AT commands please refer to 6.1.2 section:

Parameter Mode Condition Average Current Typ. (mA) Ioff Power off Module power off MFRMS=5 (USB wakeup) 0.018 30 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 25 of 60 Parameter Mode Condition Average Current Typ. (mA) WCDMA LTE FDD Radio off DRX=8(USB sleep) DRX=8(USB wakeup) Paging cycle #64 frames (USB sleep) Paging cycle #64 frames (USB wakeup) AT+CFUN=0,0 (USB sleep) AT+CFUN=0,0 (USB wakeup) WCDMA DRX=8 (USB sleep) Isleep Paging cycle #64 frames (USB sleep) LTE FDD Paging cycle #128 frames (USB sleep) Paging cycle #256 frames (USB sleep) IWCDMA-RMS WCDMA ILTE-RMS LTE FDD WCDMA Data transfer Band 1

@+23.5dBm WCDMA Data transfer Band 2

@+23.5dBm WCDMA Data transfer Band 5

@+23.5dBm WCDMA Data transfer Band 8

@+23.5dBm LTE FDD Data transfer Band 1

@+23dBm LTE FDD Data transfer Band 2

@+23dBm LTE FDD Data transfer Band 3

@+23dBm LTE FDD Data transfer Band 4

@+23dBm LTE FDD Data transfer Band 5

@+23dBm LTE FDD Data transfer Band 7

@+23dBm LTE FDD Data transfer Band 8

@+23dBm LTE FDD Data transfer Band 20

@+23dBm LTE FDD Data transfer Band 28

@+23dBm 15 30 15 30 15 30 3 3 3 3 650 620 550 570 650 650 730 700 580 750 580 650 680 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 26 of 60 Table 4-4 Power Consumption Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 27 of 60 5 Functional interface 5.1 Control interface Control interfaces used for module power on/off and reset operations. The pin definitions are as follows:

Pin name I/O Pin Num Description RESET_N I 20 When the module in operating mode, pull down RESET_N 700ms~1s, and then release it, the module is reset When module in power off mode, pull down PWRKEY 100ms~2s, and release it, the module will power on; When module in operating mode, pull down PWRKEY 3s~8s, and then release it, the module will power off Table 5-1 Control Signal PWRKEY I 21 5.1.1 Power on/off 5.1.1.1 Power on circuit is shown as follows:

When NL668-LA-01 module in power off mode, pull down PWRKEY pin 100ms~2s, the module will power on, it is recommended to use OC/OD drive circuit to control PWRKEY pin. The OC drive reference Figure 5-1 OC Drive Power on Reference Circuit The other way to control PWRKEY pin is use a button switch, a TVS should located near the button

(recommended ESD9X5VL-2/TR) for ESD protection. The button switch power on reference circuit is shown as follows:

Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 28 of 60 Figure 5-3 is power on timing. Figure 5-2 Button Switch Power on Reference Circuit Note:

Figure 5-3 Power on Timing Before pull down PWRKEY pin, the Voltage of VBAT must be stable, recommended time interval between VBAT enable and pull down PWRKEY pin at least 30ms. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 29 of 60 5.1.1.2 Power off The module supports three power off methods as table 5-2. Power off mode Power off methods Applicable scenarios Low-voltage power When VBAT voltage is low or power off down, the module will power off The module does not power off through normal process, i.e. does not logout from the base station Hardware power off Pull down PWRKEY 3s~8s Hardware normal power off AT power off AT+ CPWROFF Software normal power off Note:

Table 5-2 Power off 1.When module at operating mode, please do not cut off module power supply to avoid damage internal flash. Recommended by PWRKEY pin or AT commands power off module, 2.When power off by AT commands, please dont pull down PWRKEY pin, otherwise module then cut off power supply. will power on again automatically. The power off timing is shown as follows:

Figure 5-4 Power off Timing 5.1.2 RESET The module supports two modes to reset: hardware reset and software reset. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 30 of 60 Reset mode Reset method Hardware reset Software reset Pull down RESET_N pin 700s~1s, then release it Sent AT commands AT+RESET Table 5-3 Reset Clients can control RESET_N pin by two modes: OC/OD drive circuits and button switch, corresponding reference circuit as Figure 5-5 and Figure 5-6:

Figure 5-5 OC Driven Reset Reference Circuits The reset timing is shown as follows:

Figure 5-6 Button Reset Reference Circuits Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 31 of 60 5.2 Network status indicate interface Figure 5-7 Reset Timing NL668-LA-01 module provides three network status indicate pins. Pin 5 is network status indicator by default, AT commands AT+LEDCFG can switch to pin6 or pin61, table 5-4 is the pin definition. PIN Num. Description PIN Name NET_MODE NET_STATUS STATUS I/O O O O 5 6 61 Network status indicator (by default) Network status indicator Network status indicator 5.2.1 Interface status description Table 5-4 Network Status Indicate Network status indicate pins are used to driven indicate light and describe modules network status, NL668-LA-01 module network indicates light work status description as follow table:

Mode Module Network indicator pin status Indicator light flash/off 1 600ms High/600ms Low 600ms on /600ms off status Flash Description No SIM card Request SIM PIN Registering network

(T<15S) Register network failed 2 3000ms High /75ms Low Slow flash Standby Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 32 of 60 Mode Module Network indicator pin status Description 3 4 5 Low High Indicator light flash/off status 3000ms on/75ms off Speed flash 75ms on/75ms off Off on Voice call Sleep 75ms High / 75ms Low Data link established NL668-LA-01 module network indicates light reference design circuits shown as follows:

Table 5-5 Network Indicate Light Work Status Figure 5-8 Network Indicate Light Reference Circuits NL668-LA-01 module has built-in (U)SIM card interface, and supports 1.8V and 3.0V (U)SIM card. 5.3 (U)SIM card interface 5.3.1 (U)SIM pin definition

(U)SIM pin definition is shown in the following table:

Pin name USIM_PRESENCE USIM_VDD USIM_DATA USIM_CLK USIM_RESET I/O I PO IO O O 13 14 15 16 17 Pin Num Description Detect (U)SIM card for Hot-swap

(U)SIM Power

(U)SIM DATA Clock Signal Reset Signal Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 33 of 60 Table 5-6 (U)SIM Card Pin 5.3.2 (U)SIM interface circuit 5.3.2.1 (U)SIM card connector with card detection signal

(U)SIM circuit design requires use (U)SIM card connector, recommend chose with card detect signal that support card hot swap function (Fibocom recommend: SIM016-8P-220P). Figure 5-9 (U)SIM Card Connector (SIM016-8P-220P) SIM016-8P-220P card connector, DET and POL are short connected when the card is inserted; DET and POL are disconnected when there is no card. The following is the reference design circuit, (U)SIM card insert, USIM_PRESENCE pin is high level; (U)SIM card pull out, USIM_PRESENCE pin is low level. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 34 of 60 Figure 5-10 (U)SIM Card Connector with Detection Signal Reference Circuit 5.3.2.2 (U)SIM card connector without detection signal If use (U)SIM card connector without detection signal USIM_ PRESENCE pin must keep floating. Figure 5-11 (U)SIM Card Connector without Detection Signal Reference Circuit 5.3.3 (U)SIM hot plug NL668-LA-01 module support (U)SIM hot plug function, it determines the insertion and removal of

(U)SIM card by detect the USIM_ PRESENCE pin state. The card hot plug function can be configured by the AT+MSMPD command, and the AT commands are shown in the following table:

Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 35 of 60 AT command

(U)SIM card hot plug detection Function description AT+MSMPD=1 Enabled The module determines the insertion and

(U)SIM card hot plug detection is enabled by default. removal of (U)SIM card by detect the USIM_ PRESENCE pin state

(U)SIM card hot plug detection function is disabled power on, and does not detect the USIM_PRESENCE state AT+MSMPD=0 Disabled The module read the (U)SIM card when module Table 5-7 (U)SIM Card Hot Plug Function Configured After enabled the hot plug detection function of the (U)SIM card, if USIM_PRESENCE is in high level, the module will detect the (U)SIM card insertion and execute card initialization program. After reading the

(U)SIM card information, the module will register network. When the USIM_PRESENCE is in low level, the module detects (U)SIM card is removed, and it will not read the (U)SIM card. The USIM_PRESENCE pin active high by default, and can be switched to active low by AT Note:

command. AT command Function description AT+GTSET= SIMPHASE,1 Default, high level detect AT+GTSET= SIMPHASE,0 Low level detect Table 5-8 USIM_PRESENCE Effective Level Switched 5.3.4 (U)SIM design requirements

(U)SIM card circuit design shall meet EMC standards and ESD requirements, and at the same time, shall improve anti-interference ability to ensure that the (U)SIM card can work stably. The design needs to strictly observe the following rules:

(U)SIM card connector is placed as close to the module as possible, away from the RF antenna, DCDC power, clock signal lines and other strong interference sources;

Adopt the (U)SIM card connector with metal shield shell to improve anti-interference ability;

The length of cable from the module to the (U)SIM card connector shall not exceed 100mm. Longer cable reduces signal quality. USIM_CLK and USIM_DATA signals are ground isolated to avoid mutual interference. If it is difficult to do so, (U)SIM signal needs to be ground protected as a set;

Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 36 of 60 connector. 5.4 USB interface 5.4.1 USB Pin definition USB_DP USB_DM USB_VBUS IO IO PI 69 70 71 The filter capacitor and ESD device of (U)SIM card signal cable should place close to the (U)SIM card Please select equivalent capacitor is 22pF~33pF for ESD device. USIM_DATA should pull up to USIM_VDD with a 10K resistor. Pin name I/O Pin Num. Description USB differential data bus D+

USB differential data bus D-

USB Plug detect For more information about the USB 2.0 specification, please refer to http://www.usb.org/home Table 5-9 USB Pin Definition Note:

Since the module supports USB 2.0 High-Speed, TVS tube equivalent capacitance on the USB_DM/DP differential signal cable is required to be less than 1pF, and a 0.5pF capacitance TVS is recommended. Connect a 0-ohm resistor to USB_DM / DP differential line to help analyze problems. USB_DM and USB_DP are high-speed differential signal cables, can achieve the maximum transmission rate of 480Mbits/s, and must follow the rules below in PCB Layout:

USB_DM and USB_DP signal cables control differential impedance is 90 ohm USB_DM and USB_DP signal cables shall be parallel and equal in length, and avoid the right-

USB_DM and USB_DP signal cables are routed on the signal layer closest to the ground layer, angle route;

and the cables shall be grounded;

5.5 UART Interface 5.5.1 UART interface definition NL668-LA-01 module has two serial ports: the main serial port and debug serial port. The main serial ports support 4800bps, 9600bps, 19200bps, 38400bps, 57600bps, 115200bps, 230400bps baud rate. The default baud rate is 115200bps, used for data transmission and AT command transmission. Debug serial port support 115200bps baud rate for FIBOCOM internal debug. Table 5-8 and table 5-9 are the pin definition of main serial port and debug serial port. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 37 of 60 Pin Name I/O Pin Num 62 63 64 65 66 67 68 11 12 O O O I I O I I/O I O RI DCD CTS RTS DTR TXD RXD Pin Name DBG_RXD DBG_TXD Table 5-10 Main Serial Port Pin Num Description Ring indicator Data carrier detection Request to send Clear to send Data ready, sleep mode control Module Transmit data Module Receive data Description Module Receive data Module Transmit data 5.5.2 UART port application Table 5-11 Debug Serial Port The serial port level of NL668-LA-01 module is 1.8V, if the level of the client host system is 3.3V or other, level translator needed between the module and the host. The reference design circuit of level translator is shown as follows:

Figure 5-12 UART Level Translate Reference 1 The other level translator circuit is shown as Figure 5-13, The rest input and output circuit design of dotted line please refer to solid line part, but pay attention to signal connection direction. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 38 of 60 Figure 5-13 UART Level Translate Reference 2 Note:

Level translate circuits is not suitable for applications of baud rates above 460Kbps. 5.6 ADC interface NL668-LA-01 module support two channels ADC interface. Use AT+TADC command can read the value of ADC interface. The voltage range of ADC interface is 0.3V~VBAT_BB. PIN Name I/O Pin Num. Description ADC0 ADC1 I I 45 44 Analog to digital converter interface 0 Analog to digital converter interface 1 Table 5-12 ADC Pin Definitation NL668-LA-01 module provides a PCM interface for communication with digital audio devices such as an 5.7 PCM interface external CODEC. 5.7.1 Support model Product model NL668-LA-01 Description Support Table 5-13 Support Model of PCM Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 39 of 60 5.7.2 PCM interface definition I/O I O IO IO Pin Name PCM_IN PCM_OUT PCM_SYNC PCM_CLK Pin Num. Description 24 25 26 27 PCM data input PCM data output PCM data synchronous signal PCM clock Table 5-14 PCM Pin Definition 5.7.3 PCM interface description Pin Name Frequency. Duty Cycle Coded Format Operating Mode Description PCM_CLK 2.048MHz 50%

PCM_OUT PCM_IN

PCM_SYNC 8KHz Short pulse 16bit Liner mono Module serves as master PCM CLK PCM Output PCM Input PCM Synchronous Signal (Falling edge sampling) NL668-LA-01 module adopts the above configuration by default, any adjustment please contact Fibocom Table 5-15 PCM Interface Description Wireless technical support. 5.7.4 PCM signal description The PCM signal of NL668-LA-01 module adopts domestic mainstream Europe E1 standard. PCM_CLK frequency is 2.048MHz clock in 16bit linear format encoding. PCM_SYNC is a 8kHz burst (488nS). Figure 5-14 PCM_SYNC Timing Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 40 of 60 Figure 5-15 PCM_CODEC to NL668-LA Timing Figure 5-16 NL668-LA to PCM_CODEC Timing Parameter Min Max Unit t(sync) PCM_SYNC cycle time t(synca) PCM_SYNC asserted time t(syncd) PCM_SYNC deasserted time t(clk) PCM_CLK cycle time t(clkh) PCM_CLK high time t(clkl) PCM_CLK low time PCM_SYNC offset time to PCM_CLK t(susync) falling t(sudin) PCM_DIN setup time to PCM_CLK falling t(hdin) PCM_DIN hold time after PCM_CLK falling t(pdout) t(zdout) Delay from PCM_CLK rising to PCM_DOUT valid Delay from PCM_CLK falling to PCM_DOUT high impedance 60 10 124.5 Typ 125 488 488 244 244 122 60 s ns s ns ns ns ns ns ns ns ns Table 5-16 Codec Timing Parameters 160 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 41 of 60 6 Low power consumption 6.1 Airplane mode W_DISABLE# Pin Description:

Pin name I/O Pin Num. Description W_DISABLE#

I 4 Module airplane mode control NL668-LA-01 module supports two ways to enter airplane mode:

Table 6-1 W_DISABLE# Pin Description 1 2 First send AT+WDISABLEEN=1 to enable W_DISABLE#

Hardware I/O interface button pin function. Pull high or float W_DISABLE# pin (pull high by control default), module enter normal mode, pull it down, module AT command control enter airplane mode. AT+CFUN=4--module enter airplane mode AT+CFUN=1--module enter normal mode Table 6-2 Module Enter Airplane Mode Ways 6.2 Sleep mode 6.2.1 USB Applicationnonsupport USB suspend, support VBUS If the host nonsupport USB suspend function, the module can enter sleep mode by disconnect USB_VBUS from the external control circuit:

Sleep:

Send AT+GTUSBDETECTEN=1 to enable USB plug detect function. AT+GTLPMMODE=1,X command to set the WAKEUP_IN pins level of control module enter sleep mode. Reset module, command effective.

(X=0, WAKEUP_IN pin is high level, module enter sleep mode;

X=1, WAKEUP_IN pin is low level, module enter sleep mode) AT+CSCLK=1 command to enable sleep function. AT+GTUSBSLEEPEN=1,0 command to set USB sleep mode. Draw out the USB cable or disable the USB HUB controller, module enter sleep mode. Wake up:

Plug in USB cable or enable the USB HUB controller can wake up the module. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 42 of 60 6.2.2 USB application (nonsupport USB suspend, nonsupport VBUS) If the host nonsupport USB suspend and nonsupport VBUS function, the module can enter sleep mode Send AT+GTLPMMODE=1,X command to set the WAKEUP_IN pins level of control module enter sleep by disconnect USB_VBUS from the external control circuit:

Sleep:

mode. Reset module, command effective.

(X=0, WAKEUP_IN pin is high level, module enter sleep mode;

X=1, WAKEUP_IN pin is low level, module enter sleep mode) AT+CSCLK=1 command to enable sleep function. AT+GTUSBSLEEPEN=1,1 command to set USB sleep mode Draw out the USB cable or disable the USB HUB controller, module enter sleep mode. Plug in USB cable or enable the USB HUB controller can wake up the module. 6.2.3 USB application (Supports USB Suspend) If the host support USB Suspend/Resume. Setting USB sleep in Linux system. Send AT+GTLPMMODE=1,X command to set the WAKEUP_IN pins level of control module enter sleep mode. Reset module, command effective.

(X=0, WAKEUP_IN pin is high level, module enter sleep mode;

X=1, WAKEUP_IN pin is low level, module enter sleep mode) AT+CSCLK=1 command to enable sleep function. AT+GTUSBSLEEPEN=0,0 command to set USB sleep mode In Linux system, set the level and control of USB device as auto to suspend the devices of module. Standing the module and host about 2 seconds, the module can enter suspend mode automatically. Any operation of USB can wake up the module from sleep mode. 6.2.4 UART application ( WAKEUP_IN pin level control ) When host and module connected through UART, use the following steps to make the module enter Sent AT+GTLPMMODE=1,X command to set et the WAKEUP_IN pins level of control module enter sleep mode. Reset module, command effective.

(X=0, WAKEUP_IN pin is high level, module enter sleep mode;

Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 43 of 60 Wake up:

Sleep:

Wake up:

Sleep:

X=1, WAKEUP_IN pin is low level, module enter sleep mode) AT+GTUSBSLEEPEN=2,X command to disable USB function (X can be 0 or 1) AT+CSCLK=1 command to enable sleep function. Wake up:

The level of WAKEUP_IN pin contrary with that when the module enter sleep mode, module allow be waked up. (X=0, WAKEUP_IN pin is low level, wake up module;

X=1, WAKEUP_IN pin is high level, wake up module) 6.2.5 UART application ( DTR pin level control ) When host and module connected through UART, use the following steps can make the module enter Sleep:

Send AT+GTLPMMODE=2,X command to set the DTR set pins level of control module enter sleep mode. Reset module, command effective.

(X=0, DTR pin is high level, module enter sleep mode;

X=1, DTR pin is low level, module enter sleep mode) AT+GTUSBSLEEPEN=2,X command to disable USB function (X can be 0 or 1) AT+CSCLK = 1 command to enable sleep function. Wake up:

The level of DTR pin contrary with that when the module enter sleep mode, module allow be wake up.

(X=0, DTR pin is low level, wake up module; X=1, DTR pin is high level, wake up module) 6.2.6 ATS24 Command ATS24 command can also make module enter sleep mode. Send AT+GTLPMMODE=0 Reset module, command effective. ATS24=X command to into sleep after X seconds. (X is nonzero integer) AT+GTUSBSLEEPEN=2,X command to disable USB function (X can be 0 or 1) Sleep:

Wake up:

Send the AT command fast by UART serial port can wake up the module. If dont send AT commands between X seconds, module will try to enter sleep mode. Note:

Since the level of UART sleep power is different, power consumption of use ATS24 command to enter sleep mode is higher than that use Pin control to enter sleep mode. When ATS24 command enter sleep mode countdown, it isnt enter sleep mode once overtime strictly, but try to enter sleep mode. If system dont support after overtime, it will timekeeping automatically. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 44 of 60 If you want to use the RI signal to represent the state of the module, please refer to the AT+GTWAKE command in FIBOCOM AT Commands User Manual_Sleep. For more sleep command description, please refer to FIBOCOM AT Commands User Manual_Sleep Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 45 of 60 I/O I I IO 7 RF interface definition show as table 7-1:

Pin Name ANT_DIV ANT_GNSS ANT_MAIN 7.1 Operating band NL668-LA-01 module has ANT_MAIN, ANT_DIV and ANT_ GNSS three antenna interfaces, its pin Pin Num. Description 35 47 49 Table 7-1 RF Interface Diversity antenna GPS antenna Main antenna Operating Band Description Mode Tx (MHz) Rx (MHz) Band 1 Band 2 Band 3 Band 4 Band 5 Band 7 Band 8 Band 20 Band 28 IMT 2100MHz LTE FDD/WCDMA 1920 - 1980 2110 - 2170 IMT 1900 LTE FDD/WCDMA 1850-1910 1930-1990 DCS 1800MHz LTE FDD 1710 - 1785 1805 - 1880 IMT 2100 LTE FDD 1710-1755 2110-2155 CLR 850MHz LTE FDD/WCDMA 824 - 849 869 - 894 IMT 2600 LTE FDD 2500-2570 2620-2690 LTE FDD/WCDMA 900MHz LTE FDD/WCDMA 880 - 915 925 - 960 EUDD 800MHz LTE FDD 832 - 862 791 - 821 IMT 700 LTE FDD 703-748 758-803 Table 7-2 Operating Band 7.2 Output power The Output power of NL668-LA-01 module show as follows:

Mode Band Tx Power(dBm) Note WCDMA Band Band Band Band VIII 23.51.5 23.51.5 23.51.5 23.51.5 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 46 of 60 Mode Tx Power(dBm) Note Band Band 1 Band 2 Band 3 Band 4 Band 5 Band 7 Band 8 Band 20 Band 28 LTE FDD 23+1/-1.5 23+1/-1.5 23+1/-1.5 23+1/-1.5 23+1/-1.5 23+1/-1.5 23+1/-1.5 23+1/-1.5 23+1/-1.5 10MHz Bandwidth, 1 RB 10MHz Bandwidth, 1 RB 10MHz Bandwidth, 1 RB 10MHz Bandwidth, 1 RB 10MHz Bandwidth, 1 RB 10MHz Bandwidth, 1 RB 10MHz Bandwidth, 1 RB 10MHz Bandwidth, 1 RB 10MHz Bandwidth, 1 RB 7.3 Receive Sensitivity Table 7-3 Output Power Mode Band Rx Sensitivity(dBm) RxD Sensitivity(dBm) WCDMA LTE FDD Band Band Band Band VIII Band 1 Band 2 Band 3 Band 4 Band 5 Band 7 Band 8 Band 20 Band 28 Typ.

-109

-109.5

-110

-110

-97.5

-97.5

-98

-97

-98.5

-96

-98

-97

-97.5 Typ. NA NA NA NA

-98

-98.5

-98.5

-98.5

-99.5

-97.5

-99.5

-97

-97 Table 7-4 Receive Sensitivity Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 47 of 60 NL668-LA-01 module support GNSS function and adopts Qualcomm Gen8 technology, its specification 7.4 GNSS Receiver 7.4.1 GNSS specification show as follows:

Description Power AT+CFUN=0 Condition GNSS fixing GNSS tracking Standby Cold start Hot Start Typ. 62mA 62mA 34mA 45s 40s 5s

-144dbm

-155dbm TTFF GNSS Warm start Sensitivity Acquisition Tracking Positional accuracy GNSS Signal@-130dBm

<3.5m GNSS Signal@-130dBm 38.5 dB-Hz CN0 CEP Table 7-5 GNSS Specification 7.4.2 GNSS observes protocol NL668-LA-01 module adopt NMEA-0183 protocol. 7.5 Antenna design 7.5.1 Antenna index 1) Antenna efficiency Antenna efficiency is the ratio of antenna input power to radiated power. Due to the antenna return loss, material loss, and coupling loss, the radiated power is always lower than the input power. Recommend>

S11 shows that the matching degree of the antennas 50 ohm impedance, to a certain extent, affects the antenna efficiency. VSWR test methods can be used to measure this parameter. Recommend S11 <-

40% (-4dB). 2) S11 or VSWR 10dB. 3) Polarization Polarization is the rotation direction of the electric field in the maximum radiation direction of the antenna. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 48 of 60 Radiation pattern refers to the antennas electromagnetic field strength in the far field in all directions. Half-wave dipole antenna is the most suitable terminal antenna. For built-in antenna, PIFA antennas or It is recommended to use linear polarization. 4) Radiation pattern IFA antennas are recommended:

Antenna area: 6mm high*10mm wide*100mm long. Antenna radiation direction: Omni_directional(all direction). 5) Gain and directivity Gain is a collection of antenna benefits and antenna directivity. Recommended antenna gain 3dBi. 6) Interference Antenna directivity refers to the electromagnetic field strength of electromagnetic wave in all directions. In addition to the antenna performance, other interferences on the PCB also affect the performance of the module. In order to ensure the high performance of the module, interference must be controlled. Suggestions: For example, LCD, CPU, FPC cable, audio circuit, power supply should be away from the antenna as far as possible, and make the appropriate isolation and shielding, or filtering on the path. 7) Antenna index requirements NL668-LA-01 module main antenna requirements Frequency range It must use the most suitable antenna to adapt to the relevant frequency band Bandwidth (WCDMA) WCDMA band 1 (2100): 250 MHz WCDMA band 2 (1900): 140 MHz WCDMA band 5 (800): 70 MHz WCDMA band 8 (900): 80 MHz LTE band 1(2100): 250 MHz LTE band 2(1900): 140 MHz LTE Band 3(1800): 170 MHz LTE Band 4(2100): 440 MHz LTE Band 7(2600): 190 MHz LTE Band 8(900): 80 MHz LTE Band 20(800):71 MHz LTE Band 28(700):100 MHz Bandwidth (LTE) LTE Band 5(850): 70 MHz Impedance 50 ohm Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 49 of 60 NL668-LA-01 module main antenna requirements Input power

> 23dBm average power WCDMA & LTE Standing wave ratio recommended 2:1 7.5.2 Antenna reference design Table 7-6 Main Antenna Requirements Antenna is a sensitive device, susceptible to the external environment. For example, the size of the module, the location of the antenna, the space it occupies, and the surrounding ground all may affect antenna performance. In addition, the RF cable connect with antenna, and the location of the fixed antenna also may affect its performance. NL668-LA-01 modules three antenna all led by welding plate. recommended clients use the U.FL-R-SMT-1 antenna connector and corresponding match adapter cable. Figure 7-1 is reference design of main antenna and diversity antenna. Figure 7-2 is reference design of GNSS antenna. Figure 7-1 Main and diversity Antenna Reference Circuit Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 50 of 60 Figure 7-2 GNSS Antenna Reference Circuit Note transmission cable is 50 ohms. All matches must be placed close to antenna to make sure the characteristic impedance of Since the antenna loss should be less than 0.3dB, keep PCB cable as short as possible. Keep the PCB LAYOUT straight, and reduce holes on the route to another layer; also avoid right-angle and acute-angle wiring. PCB cable should have a good reference ground to avoid other signal cable near the antenna. Recommend a complete ground level, and use this complete ground level as a reference Ground around antenna must be keep connect with main ground. For more design information please refer toFIBOCOM RF Antenna Application Design ground. Instruction Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 51 of 60 8 Reliability 8.1 Limiting voltage range interfaces can withstand. 8.1.1 Absolute voltage range The limiting voltage range is maximum voltage range that power supply and digital or analog input/output The absolute voltage range of NL668-LA-01 module is shown as table 8-1. Parameter description VBAT GPIO Power supply Digital IO supply voltage Min

-0.3

-0.3 Typ 3.8 1.8 Max 4.7 2.0 Unit V V Table 8-1 Absolute Voltage Range 8.1.2 Operating voltage range VLlogic low levelVHlogic high level Parameter VL Min Digital input

-0.3 Digital output

Parameter VBAT USIM_VDD Max 0.6 0.45 I/O PI PO VH Min 1.2 1.35 Max 2.0

Min 3.3 Typ 3.8 Max 4.3 1.7/2.75 1.8/2.85 1.9/2.95 Table 8-2 Operating Voltage Range Unit V V Unit V V 8.2 Environment temperature range The recommended operating temperature range of NL668-LA-01 module.is -30~+75. When module operating at limited temperature range, some RF indexes may exceed standard, so module application terminal should consider temperature control measurement. The module application terminal is recommended storage in certain temperature conditions. Modules out of the temperature range may not operate or may be damaged. Temperature Operating temperature Limited operating temperature Min

-30

-40 Typ 25 Max 75 85 Unit Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 52 of 60 Temperature Storage temperature Min

-40 Typ Max 90 Unit Table 8-3 Environment Temperature Range 8.3 Environmental reliability requirements Test items Test conditions Low temperature storage test Temperature -403, 24 hours in shutdown state High temperature storage test Temperature +853, 24 hours in shutdown state Temperature shock test In shutdown state, 0.5 hour at -40 and +85 environment respectively, the temperature conversion time <3min, for 24 cycles High temperature and humidity Temperature +853, humidity 90 ~ 95% RH, 24 hours in shutdown Low temperature operating test Temperature -303, 24 hours in operating state High temperature operating Temperature +753, 24 hours in operating state Conduct vibration test according to the requirements shown in the test test Vibration test Random vibration ASD (Acceleration Spectral Density) 0.96m2/s3 0.96m2/s3(20Hz), other -3dB/octave state table below:

Frequency 5~20Hz 20~500Hz Connector life test 30 times of insertion/removal for RF antenna interface cable Table 8-4 Environmental Reliability Requirements 8.4 ESD characteristics NL668-LA-01 module design has considered ESD issue and provided ESD protect measurements, but take ESD issue taken by module carrier and secondary development into consideration, developers should care ESD protection of module application terminal. In addition to considering anti-static treatment of packaging, please refer to recommended circuit of interface design in the document. ESD allowable discharge range of NL668-LA-01 module show as table 7-5 Air discharge Contact discharge Interface GND Antenna port Other port 10KV 8KV 1KV 5KV 4KV 0.5KV Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 53 of 60 Table 8-5 ESD Allowable Discharge Range Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 54 of 60 9 Structure specification 9.1 Structure dimension The structure dimension of NL668-LA-01 module is shown as Figure 9-2:

Figure 9-1 Structure Dimension (Unit: mm) 9.2 PCB Soldering Pad and Stencil Design PCB soldering pad and stencil design please refer toFIBOCOM NL668 LCC SMT Design Description. 9.3 SMT SMT Design Description. 9.4 Carrier and storage SMT production process parameters and related requirements please refer toFIBOCOM NL668 LCC Carrier and storage please refer toFIBOCOM NL668 LCC SMT Design Description. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 55 of 60 10 Approval NL668-LA-01 module approval show as table 10-1:

Certification Scheme NL668-LA-01 TBD TBD TBD TBD TBD For more information please refer to Fibocom net. Table 10-1 Approval TBD TBD TBD TBD TBD Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 56 of 60 11 Appendix 11.1 Terms and acronyms Term AMR bps CS DRX FDD GMSK HSDPA IMEI Imax LED LSB LTE CA DLCA SCell ME MS MT PCB PDU Definition Adaptive Multi-rate Bits Per Second Coding Scheme Discontinuous Reception Frequency Division Duplexing Gaussian Minimum Shift Keying High Speed Down Link Packet Access International Mobile Equipment Identity Maximum Load Current Light Emitting Diode Least Significant Bit Long Term Evolution Carrier Aggregation Downlink Carrier Aggregation Secondary Cell for CA Mobile Equipment Mobile Station Mobile Terminated Printed Circuit Board Protocol Data Unit Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 57 of 60 Definition Phase Shift Keying Quadrature Amplitude Modulation Quadrature Phase Shift Keying Radio Frequency Right Hand Circularly Polarized RMS Root Mean Square Real Time Clock Receive Short Message Service Terminal Equipment Transmitting Direction Term PSK QAM QPSK RF RHCP RMS RTC Rx SMS TE TX UART UMTS URC USSD Vmax Vnorm Vmin VIHmin VILmax VILmin Universal Asynchronous Receiver & Transmitter Universal Mobile Telecommunications System Unsolicited Result Code

(U)SIM

(Universal) Subscriber Identity Module Unstructured Supplementary Service Data Maximum Voltage Value Normal Voltage Value Minimum Voltage Value VIHmax Maximum Input High Level Voltage Value Minimum Input High Level Voltage Value Maximum Input Low Level Voltage Value Minimum Input Low Level Voltage Value Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 58 of 60 Term VImax VImin Definition Absolute Maximum Input Voltage Value Absolute Minimum Input Voltage Value VOHmax Maximum Output High Level Voltage Value VOHmin Minimum Output High Level Voltage Value VOLmax Maximum Output Low Level Voltage Value VOLmin VSWR Minimum Output Low Level Voltage Value Voltage Standing Wave Ratio WCDMA Wideband Code Division Multiple Access Table 11-1 Terms and Acronyms 11.2 Related Document FIBOCOM EVK-GT8230-NL User Manual FIBOCOM ADP-NL668-LA Evaluation board instructions FIBOCOM NL668 LCC SMT Application Design Instruction FIBOCOM RF Antenna Application Design Instruction FIBOCOM NL668 AT Command Manual 11.3 Reference Standards The design of the product complies with the following standards:

3GPP TS 51.010-1 V10.5.0: Mobile Station (MS) conformance specification; Part 1: Conformance 3GPP TS 34.121-1 V10.8.0: User Equipment (UE) conformance specification; Radio transmission and reception (FDD); Part 1: Conformance specification 3GPP TS 36.521-1 V10.6.0: User Equipment (UE) conformance specification; Radio transmission and reception; Part 1: Conformance testing 3GPP TS 21.111 V10.0.0: USIM and IC card requirements 3GPP TS 51.011 V4.15.0: Specification of the Subscriber Identity Module -Mobile Equipment (SIM-

3GPP TS 31.102 V10.11.0: Characteristics of the Universal Subscriber Identity Module (USIM) specification ME) interface application Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 59 of 60 and ancillary equipment 3GPP TS 31.11 V10.16.0: Universal Subscriber Identity Module (USIM) Application Toolkit (USAT) 3GPP TS 36.124 V10.3.0: Electro Magnetic Compatibility (EMC) requirements for mobile terminals 3GPP TS 27.007 V10.0.8: AT command set for User Equipment (UE) 3GPP TS 27.005 V10.0.1: Use of Data Terminal Equipment - Data Circuit terminating Equipment

(DTE - DCE) interface for Short Message Service (SMS) and Cell Broadcast Service (CBS) HQ Address5 F Shekou Science and Technology Building, Nanhai Ave 1057, Shenzhen,Guangdong 11.4 Contact URLhttp://www.fibocom.com.cn/

P.R.China TEL+86 755-26733555 Fax+86 755-26520841 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA-01 Hardware User Manua Page 60 of 60

NL668-LA-01 _V1.0 V1.0 2020-04-13 NA FIBOCOM-SAL-WI-71-Form-02 Page 1 of 2 1:

SN IMEI S/N 10 SN IMEI 15 IMEI FCC ID 0.25mm FIBOCOM-SAL-WI-71-Form-02 Page 2 of 2

Fibocom Wireless Inc. Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: ZMONL668LA01 Pursuant to Sections 0.457 and 0.459 of the Commissions Rules, we hereby request confidential treatment of information accompanying this application as outlined below:

Schematic Diagram Block Diagram Parts List Operational Description File Name Schematic Diagram Block Diagram Parts List Operational Description Exhibit Type The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Pursuant to DA04-1705 June 15, 2004 of the Commissions public notice, we also request temporary confidential treatment of information accompanying this application as outlined below:

External Photos Internal Photos Test Setup Photos User Manual Exhibit Type Planned Release Date STC: 90 Days Sincerely, File Name External Photos Internal Photos Test Setup Photos User Manual XueShan Huang / Regulatory Principal Engineer Fibocom Wireless Inc. Tel: +86-755-26525092 E-mail: keith.huang@fibocom.com

Modular Approval Request FCC Items to be covered 1. The modular transmitter must have its own RF shielding. FCC ID: ZMONL668LA01 5. 2. The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with Part 15 requirements under conditions of excessive data rates or over-modulation. 3. The modular transmitter must have its own power supply regulation. 4. The modular transmitter must comply with the antenna requirements of Section 15.203 and 15.204(c). The antenna must either be permanently attached or employ a unique antenna coupler (at all connections between the module and the antenna, including the cable).. The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing. This is intended to demonstrate that the module is capable of complying with Part 15 emission limits regardless of the device into which it is eventually installed. 6. The modular transmitter must be labeled with its own FCC ID number, and, if the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains Transmitter Module FCC ID: XYZMODEL1 or Contains FCC ID: XYZMODEL1. Any similar wording that expresses the same meaning may be used. The Grantee may either provide such a label, an example of which must be included in the application for equipment authorization, or, must provide adequate instructions along with the module which explain this requirement. In the latter case, a copy of these instructions must be included in the application for equipment authorization. 7. The modular transmitter must comply with any specific rule or operating requirements applicable to the transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. For example, there are very strict operational and timing requirements that must be met before a transmitter is authorized for operation under Section 15.231. For instance, data transmission is prohibited, except for operation under Section 15.231(e), in which case there are separate field strength level and timing requirements. Compliance with these requirements must be assured. 8. The modular transmitter must comply with any applicable RF exposure requirements. For example, FCC Rules in Sections 2.1091, 2.1093 and specific Sections of Part 15, including 15.319(i), 15.407(f), 15.253(f) and 15.255(g), require that Unlicensed PCS, UNII and millimeter wave devices perform routine environmental evaluation for RF Exposure to demonstrate compliance. In addition, spread spectrum transmitters operating under Section 15.247 are required to address RF Exposure compliance in accordance with Section 15.247(b)(4). Modular transmitters approved under other Sections of Part 15, when necessary, may also need to address certain RF Exposure concerns, Answer from applicant Y The EUT provides the RF shielding. See EUT photo. Y The EUT has its buffered modulation. Y The EUT has its own power supply regulation, please see the Schematic Diagram. Y The EUT meets the FCC antenna requirements;

unique antenna connector and photo of antenna are shown in the test report. Y The EUT was tested with a test board, Please see test report and setup photo Y The FCC ID is ZMONL668LA01 Y The EUT is compliant with all applicable FCC rules. Details instructions for maintaining compliance are give in the User Manual. Y The EUT complies with RF exposure requirement. typically by providing specific installation and operating instructions for users, installers and other interested parties to ensure compliance. Note: If compliance with one or more of the numbered requirements, listed above, cannot be demonstrated, it may be possible to obtain a Limited Modular Approval (LMA). Name and surname of applicant (or authorized representative): HuangXueShan Date: 2020-05-08 Signature:

Fibocom Wireless Inc. Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: March 5, 2020 SUBJECT: FCC Application for FCC ID: ZMONL668LA01 To Whom It May Concern:

We, the undersigned, hereby authorize Jim Huang at SGS-CSTC Standards Technical Services Ltd on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by SGS-CSTC Standards Technical Services Ltd on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, XueShan Huang/ Regulatory Principal Engineer Fibocom Wireless Inc. Tel: +86-755-26525092 E-mail: keith.huang@fibocom.com C:\Users\eason-ys_wang\Desktop\\NL668-LA\ list\FCC\POA_Letter_140225.docx

Tune-up procedures of NL668-LA-01 1 Test Equipment List Radio Communication Tester: CMU200 or CMW500 or Angilent 8960 Dummy battery or Power Supply: Agilent 66319D Operating Band Power(dBm) PC with serial port GPIB card 2 The WCDMA power Output power of range WCDMA Band I WCDMA Band II WCDMA Band V WCDMA Band VIII 3 The LTE power Output power of range Number of timeslots in uplink assignment LTE B1 LTE B2 LTE B3 LTE B4 24+1/-3dB 24+1/-3dB 24+1/-3dB 24+1/-3dB Power(dBm) 23+1/-2.7dB 23+1/-2.7dB 23+1/-2.7dB 23+1/-2.7dB Page1, Total 2 23+1/-2.7dB 23+1/-2.7dB 23+1/-2.7dB 23+1/-2.7dB 23+1/-3.2dB NOTEFor transmission bandwidths (Figure 5.4.2-1, Table 5.4.4-1) confined within FUL_low and FUL_low + 4 MHz or FUL_high 4 MHz and FUL_high, the maximum output power requirement is relaxed by reducing the lower tolerance limit LTE B5 LTE B7 LTE B8 LTE B20 LTE B28 by 1.5 dB Page2, Total 2