UCLOUDLINK NETWORK TECHNOLOGY GLMM18A02 LTE MODULE User Manual

HONGKONG UCLOUDLINK NETWORK TECHNOLOGY LIMITED LTE MODULE

User Manual

1／35 uCloudlink M2 Mini PCIe-C Hardware Design Guide Version: uCloudlink M2 Mini PCIe-C _Hardware Design Guide _V1.0 Date: 05/22/2018 ＧＬＭＭ１８Ａ０２　LTE Module
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 2／35 uCloudlink was found by some senior international communications experts. uCloudlink has its headquarter, R&D center and call center located in Shenzhen, various branch offices and operations centers in the United States, United Kingdom and Hong Kong(China). uCloudlink has been focusing on Cloud SIM technology and providing more convenient, fast and cheap data services for mobile users and enterprise users with the coverage more than 100 countries and regions globally so they can access the Internet at local rate anywhere, anytime. Meanwhile, setting up the world’s leading Cloud SIM PaaS brings the benefits of winning and serving customers with lower cost to these global mobile data providers. uCloudlink has achieved success in the wireless industry by providing Internet access for more than a hundred million users. Now we are on our way to enter Internet of Things (IoT) market with the aim to provide global connectivity for billion IoT links. M2 is the M2M module based on Cloud SIM technology launched by uCloudlink providing SIM-free wireless access services for Industrial IoT (IIoT), Connected Car, Vending Machine, Advertising Machine and POS Machine and more across different network operators. uCloudlink always strives to provide our customers with the fastest and most comprehensive services. Should you have any questions, please contact our headquarter in Shenzhen as follows: Shenzhen uCloudlink Network Technology Co., Ltd Address: 3rd Floor, A Zone, Building 1, High-tech Zone, Shenzhen. E-mail: IOT@ucloudlink.com Tel: 0755-2639-920
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 3／35 Preface This guide can help our customers to design their products. They shall design the product according to the specifications and parameters contained herein. We shall not be liable or responsible for any loss or damage resulting from their improper operation. We reserve the right to make any updates and any other modifications to this manual at any time without prior notice. Copyright No part of this manual may be reproduced or transmitted in any form or by any means without prior written consent of Shenzhen uCloudlink Network Technology Co., Ltd (“uCloudlink”). Copyright © Shenzhen uCloudlink Network Technology Co, Ltd 2018. All Rights Reserved
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 4／35 Revision History Revision Date Author Description 1.0 2018/05/22 Max Wei Ji Yongshun Initial Release
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 5／35 Contents Revision History ............................................................................................................................ 4 Contents ....................................................................................................................................... 5 Table Index ................................................................................................................................... 6 Figure Index .................................................................................................................................. 7 1 Introduction ............................................................................................................................. 8 1.1 Safety Information ...................................................................................................................... 8 2 Product Overview ..................................................................................................................... 9 2.1 About This Chapter ..................................................................................................................... 9 2.2 Product Introduction................................................................................................................... 9 2.3 Key features ............................................................................................................................. 10 2.4. Function Overview ................................................................................................................... 13 3. Interface Application ............................................................................................................. 14 3.1. About This Chapter .................................................................................................................. 14 3.2. M2 Module Interface ............................................................................................................... 14 3.3. Power Interface ........................................................................................................................ 19 3.4. UART Interface ......................................................................................................................... 20 3.5. USIM Card Interface ................................................................................................................. 21 3.6. USB Interface ........................................................................................................................... 22 3.7. Signal Control Signal ................................................................................................................ 23 3.7.1. W_DISABLE# Signal ........................................................................................................ 24 3.7.2. PERST# Signal ................................................................................................................. 24 3.7.3. LED_WWAN# Signal ....................................................................................................... 25 3.7.4. WAKEUP_IN and WAKEUP_OUT Signal ......................................................................... 25 3.8. Antenna Interface .................................................................................................................... 26 3.8.1. Antenna Requirements .................................................................................................. 26 4 Electrical Interface and RF Specifications .............................................................................. 27 4.1. About This Chapter ............................................................................................................... 27 4.2. Power Supply Ratings ............................................................................................................ 27 4.3. I/O Interface .......................................................................................................................... 28 4.4. RF Specifications .................................................................................................................... 28 4.5. WIFI/BT Receiving Sensitivity .................................................................................................... 29 4.6. Electrostatic Discharge Characteristics ................................................................................. 30 5 Mechanical Dimensions ........................................................................................................ 31 5.1. Outer Dimension of M2 Module ........................................................................................... 31
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 6／35 5.2. Standard Dimension .............................................................................................................. 31 6 Appendix Terms and Abbreviation ........................................................................................ 33 Table Index Table 1 M2 module features................................................................................................................ 9 Table 2 Key Features............................................................................................................................ 9 Table 3 Definition of I/O Parameters ................................................................................................. 13 Table 4 Definition of pins on the M2 module..................................................................................... 14 Table 5 Definition of power interfaces............................................................................................... 17 Table 6 UART interface signals........................................................................................................... 18 Table 7 USIM Card interface signals................................................................................................... 19 Table 8 Definition of USB Interfaces..................................................................................................... 20 Table 9 Definition of the pins on the signal control interface.............................................................. 22 Table 10 Operating status of radio frequency..................................................................................... 23 Table 11 Network status indication..................................................................................................... 24 Table 12 WAKEUP_IN and WAKEUP_OUT pin..................................................................................... 24 Table 13 Antenna requirements.......................................................................................................... 25 Table 14 Input power range................................................................................................................ 26 Table 15 I/O Interface.......................................................................................................................... 27 Table 16 RF output power.................................................................................................................... 27 Table 17 RF receiving sensitivity........................................................................................................ 28 Table 18 ESD Characteristics............................................................................................................... 29 Table 19 Terms and Abbreviations..................................................................................................... 32
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 7／35 Figure Index Figure 1 Functional Diagram ............................................................................................................. 12 Figure 2 Pin Assignment (Top View)................................................................................................... 16 Figure 3 Recommended Power Circuit of the M2 module................................................................. 17 Figure 4 Recommended Power Circuit of Level Match...................................................................... 18 Figure 5 Circuit of the 6-pin USIM Card interface.............................................................................. 19 Figure 6 Recommended Circuit of USB Interface............................................................................... 21 Figure 7 Timing sequence of module reset........................................................................................ 23 Figure 8 Driving circuit....................................................................................................................... 24 Figure 9 Antenna Interface................................................................................................................. 25 Figure 10 Outer dimension of the M2 module.................................................................................... 30 Figure 11 Standard dimension of MINI PCI EXPRESS card.................................................................. 31 Figure 12 Mini PCI Express Connector ................................................................................................ 31
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 8／35 1 Introduction This document gives a general introduction of key features, functions, interface description, electrical characteristics and RF characteristics and layout of the M2 Mini PCIe-C module (“M2”). 1.1 Safety Information The following safety precautions shall be observed to ensure your safety and protect your device and working environment from potential damage. Switch your phone off before take-off. Electromagnetic waves emitted by your phone may affect the electronic navigation equipment in the aircraft. The ignorance of this tip may affect fight safety or even break the law. Road safety comes first! Using a mobile device while driving is prohibited even it has speakerphone. Please pull over your car in a safe place first then make or receive a call. Be aware if there are any restrictions on mobile device use during a hospital or healthcare facility. All medical equipment may be susceptible to radio frequency interference, which could affect performance, so you shall switch off your mobile device. Do not place your mobile device near inflammable gas. Always switch off your mobile device near gas station, oil depot, chemical plant or explosion areas. Operating the mobile device in potential explosion areas has risk. It cannot guarantee that mobile device can access Internet under any circumstances. For example, when you run out of credits or insert invalid SIM card. For any emergency situations, remember to make the emergency call and make sure your device is powered on and you are in an area with known-good signal strength. Your mobile device would send and receive radio frequency signal when switched on. The interference occurs when you place the device near television, radio, computer and other electronic devices.
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 9／35 2 Product Overview 2.1 About This Chapter M2 module is the LTE module with the PCI Express Mini Card 1.2 standard interface providing FDD-LTE/TDD-LTE/WCDMA /GSM network connections and compatible with embedded operating system, such as Linux or Android. M2 module is available for the following occasions:  Tablet, notebook  Remote monitoring  Car-mounted device  Wireless POS machine  Intelligent metering  Wireless router, exchanger  Other wireless devices This chapter gives a brief introduction of the M2 module including:  Product Introduction  Key Features  Function Overview 2.2 Product Introduction The M2 module is only available with Data Only version. Table 1 M2 module features
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 10／35 Name Description uCloudlink M2 Mini PCIe-C LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B19/B20/B26/B28 TDD-LTE: B34/B38/B39/B40/B41 WCDMA: B1/B2/B4/B5/B8 GSM850/900/1800 /1900 GPS 2.3 Key features The following table describes detailed features of the M2 module. Table 2 key features Feature Description Mini PCle Interface Standard PCI Express Mini Card 1.2 interface Power Voltage 3.3~3.6V Output Power Class 4 (33dBm±2dB) for GSM900 Class 1 (30dBm±2dB) for DCS1800 Class E2 (27dBm±3dB) for GSM900 8-PSK Class E2 (26dBm±3dB) for DCS1800 8-PSK Class 3 (24dBm+1/-3dB) for WCDMA bands Class 3 (23dBm±2dB) for LTE FDD bands Class 3 (23dBm±2dB) for LTE TDD bands Up to non-CA CAT7 Support 1.4~20MHz RF bandwidth LTE Support downlink multi-user MIMO ２．４Ｇ　ＷｉＦｉ：８０２．１１　ｂ／ｇ／ｎ/BT
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 11／35 FDD: Max uplink speed 50Mbps, max downlink speed 150Mbps TDD: Max uplink speed 35Mbps, max downlink speed 130Mbps Support 3GPP R8 DC-HSPA+ Support 16-QAM, 64-QAM and QPSK modulation WCDMA 3GPP R6 CAT6 HSUPA: max uplink speed 5.76Mbps 3GPP R8 CAT24 DC-HSPA+: max downlink speed 42Mbps GSM/GPRS/EDGE R99: CSD transmission speed: 9.6kbps, 14.4kbps GPRS: GPRS multi-slot class 12 by default Encoding: CS-1/CS-2/CS-3 and CS-4 Up to 4 RX time slots per frame EDGE: Support EDGE multi-slot class 12 by default Support different modulation and encoding of GMSK and 8-PSK Support uplink and downlink encoding CS 1-4 and MCS 1-9 Internet Protocol Support TCP/UDP/PPP/FTP/HTTP/SMTP/MMS/NTP/PING/QMI Support PAP (Password Authentication Protocol) and CHAP (Challenge Handshake Authentication Protocol) USIM Interface Support USIM/SIM: 1.8V and 3.0V UART Interface Support RTS and CTS hardware flow control Baud rate can reach up to 230400bps, 115200 bps by default Used for AT command and data transmission
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 12／35 USB Interface Compliant with USB2.0 specification (slave only)，the data transfer can reach up to 480 Mbps. Used for firmware upgrade, AT command, data transmission, log output; USB driver: Support Windows 7, Windows 8/8.1, Linux 2.6 or Later, Android 4.0/4.2/4.4/5.0 AT Commands Compliant with 3GPP TS 27.007, 27.005 and enhanced AT commands Antenna Interface Support main antenna pad, diversity antenna pad and WIFI/BT antenna pad WIFI Protocol: Dimension and weight Dimensions (L x W x H): 51.0 mm ×3 0.0 mm×4 .9 mm Weight: about 11 g Operating Temperature Normal operating temperature: -30°C ~+75°C 1) Extended operating temperature: -40°C ~ +85°C 2) Firmware upgrade USB interface or DFOTA interface RoHS All hardware components meet the EU RoHS standard Note 1) when M2 module works within this temperature range, and all its RF performances comply with the 3GPP standard requirements. 2) when M2 module works within this temperature range, and can still work properly with data transmission, irretrievable malfunctions won’t occur; radio spectrum and network won’t be affected. And only few features may be out of the 3GPP standard such as output power. When the temperature is back within normal range, all features properly resume. 802.11 b/g/n
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 13／35 2.4 Function Overview Figure 1 shows the functional diagram of the M2 module. The major functions are following:  Support line 1 of USIM card interface  Support line 1 of USIM 2.0 interface  Support line 1 of UART interface  Support LED status indication  Support RF shut-down feature  Support external reset feature  Support sleep control and sleep indication  Support 3 RF antenna interfaces Figure 1 Functional Diagram uCloudlink M2 Mini PCIe-C UART USB W_DISABLE# PERST# LED_WWAN# Antenna Interface VBAT USIM WAKEUP_OUT WAKEUP_IN Mini PCI Express Interface Antenna Interface Main Antenna Diversity Antenna Antenna WIFI BT Antenna
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 14／35 3 Interface Application 3.1 About This Chapter This chapter mainly gives the external application interfaces of the M2 module, including:  Power Interface  UART Interface  USIM Interface  USB Interface  Control Signal  Antenna Interface 3.2 M2 Module Interface 3.2.1 Interface Definition The interface of the M2 module is the standard Mini PCI Express interface. For details about the 52-pin interfaces, see table 3 I/O parameters definition. Table 3 Definition of I/O parameters Mark Description IO Bidirectional input/output DI Digital Input DO Digital Output AI Analog Input
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 15／35 AO Analog Output PI Power Input PO Power Output OC Open Collector Table 4 Definition of pins on the M2 module Pin No. Status Pin Name I/O Description Note 1 WAKE# MIC_P* AI Audio Input(Positive) 2 3.3Vaux VBAT PI Power Input 3 COEX1 MIC_N* AI Audio Input(Negative) 4 GND GND Ground 5 COEX2 SPK_P* AO Audio Output(Positive) 6 1.5V NC — — 7 CLKREQ# SPK_N* AO Audio Output(Negative) 8 UIM_PWR USIM_VDD PO USIM Power Output 9 GND GND Ground 10 UIM_DATA USIM_DATA IO USIM data signal 11 REFCLK- VDD_EXT PO 1.8V Power Output
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 16／35 12 UIM_CLK USIM_CLK DO USIM Clock Signal 13 REFCLK+ RESERVED — Reserved 14 UIM_RESET USIM_RST DO USIM Reset Signal 15 GND GND Ground 16 UIM_VPP RESERVED — Reserved 17 RESERVED RESERVED — Reserved 18 GND GND Ground 19 RESERVED WAKEUP_IN DI Module Sleep Control Pin Allows to sleep when low level 20 W_DISABLE# W_DISABLE# DI Disable RF Communication Valid when low level 21 GND GND Ground 22 PERST# PERST# DI Reset Control Pin Valid when low level 23 PERn0 UART_RXD DI Module receiving end 24 3.3Vaux VBAT PI Power Input 25 PERp0 UART_RTS DO Module request to send 26 GND GND Ground 27 GND GND Ground 28 1.5V UART_CTS DI Module request to delete
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 17／35 29 GND GND Ground 30 SMB_CLK UART_DCD DO Module Carrier Sense 31 PETn0 UART_TXD DO Module sending end 32 SMB_DATA WAKEUP_OUT DO Module Sleep Indication 33 PETp0 PERST# DI Reset Control Pin Valid when low level 34 GND GND Ground 35 GND GND Ground 36 USB_D- USB_DM IO USB Differential Signal (-) 37 GND GND Ground 38 USB_D+ USB_DP IO USB Differential Signal (+) 39 3.3Vaux VBAT PI Power Input 40 GND GND Ground 41 3.3Vaux VBAT PI Power Input 42 LED_WWAN# LED_WWAN# OC Status Light Indication 43 GND GND Ground 44 LED_WLAN# RESERVED — Reserved 45 RESERVED RESERVED — Reserved 46 LED_WPAN# UART_DTR DI DTE is ready 47 RESERVED RESERVED — Reserved 48 1.5V NC — — 49 RESERVED RESERVED — Reserved 50 GND GND Ground 51 RESERVED RESERVED — Reserved
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 18／35 52 3.3Vaux VBAT PI Power Input Note 1 Besides USIM interfaces, the voltage domain of other digital interfaces is 1.8V, and the USIM interface is available with 1.8V and 3.0V. 2. Please suspend all of NC, RESERVED and unused pins. 3. “*” indicates the audio feature is not available and reserved function. 3.2.2 Pin Assignment The following figure shows the pin assignment of the M2 module, and the top face is for sticking antenna connector and opposite face is the BOT. Figure 2 Pin Assignment (Top View)
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 19／35 3.3 Power Interface Table 5 lists the definitions of the pins on the power supply interface. Table 5 Definition of power interfaces Pin No. Pin Name I/O Description 2, 24, 39 , 41, 52 VBAT PI 3.3~3.6V Power Input 4, 9, 15, 18, 21, 26, 27, 29, 34 ,35, 37, 40, 43, 50 GND Ground When the M2 module works normally, power is supplied through the VBAT pins. When it works at EGSM900 mode and transmits current may reach the transient peak value of about 2.5 A. To make sure that the voltage does not decrease below 3.3V, a low-dropout (LDO) regulator or switch power with current output of more than 2.5 A is recommended for external power supply. Furthermore, it is recommended that customers add the 1000uF or above energy storage capacitor to connect in parallel at the power interface of the M2 module. And keep the power device and power cable away from antenna to avoid EMI interference. Figure 3 shows the recommended power circuit of M2 module using DC-DC power supply. The resistance accuracy of R3 and R4 is 1%. The capacitance E1 needs to use high polymer tantalum capacitor to add the drive capability of pulse current in dialing process. Figure 3 Recommended Power Circuit of the M2 module
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 20／35 3.4 UART Interface Table 6 lists the UART interface signals. Table 6 UART interface signals Pin No. Pin name I/O Typ.(V) Description 23 UART_RXD DI 1.8V Receive data 31 UART_TXD DO 1.8V Send data 28 UART_CTS DI 1.8V Clear to Send 25 UART_RTS DO 1.8V Ready for Receive The M2 module is available with 1-wire hardware flow control UART (DSR and R1 signal are not supported), which supports 9600, 19200, 38400, 57600, 115200, 230400bps and the default value is 115200bps. Figure 4 shows the recommended power circuit of level match in the 3.3V power. Pay attention to the connection direction. The dotted circuit and full circuit can be used as reference to each other. Figure 4 Recommended Power Circuit of Level Match MCU/ARM /TXD /RXD VDD_EXT 10 K VCC_MCU 4.7 K K 10 VDD_EXT UART_TXD UART_RXD UART_RTS UART_CTS /RTS /CTS GND Module VDD_EXT 4.7 K GND 1 nF 1 nF Voltage level: 3.3V -
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 21／35 3.5 USIM Card Interface The signal definition of the M2 module USIM card interface is as below. Table 7 USIM card interface signals Pin No. Pin Name I/O Typ.(V) Description 8 USIM_VDD PO 1.8V/3.0V Output Power supply for USIM card 10 USIM_DATA IO 1.8V/3.0V USIM/SIM Data 12 USIM_CLK DO 1.8V/3.0V USIM/SIM Clock 14 USIM_RST DO 1.8V/3.0V USIM/SIM Reset The M2 module is available with 1.8V and 3.0V USIM/SIM card. Figure 5 shows the circuit of the 6-pin USIM card interface. Figure 5 Circuit of the 6-pin USIM Card Interface USIM_VDD GND USIM_RST USIM_CLK USIM_DATA 22 R 22 R 22 R 100 nF USIM 卡座 GND ESD 33 pF33pF33pF VCC RST CLK IO VPP GND GND 100 nF 15 K Module USIM_VDD
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 22／35 In order to enhance the reliability and availability of the USIM card, please pay attention to these key points: 1. The USIM socket should be placed near the USIM interface and it is recommend that PCB circuit connecting the USIM interface to the USIM socket does not exceed 200 mm. 2. Keep USIM card signal cable away from RF antenna and module power cable. 3. The decouple capacitor of USIM_VDD should be less than 1uF and placed near the USIM socket. 4. To avoid the mutual interference between USIM_DATA and USIM_CLK, keep them away with each other and shield them with surrounded ground including USIM_RST. 5. In order to ensure ESD protection in good performance, it is recommended to place the TVS with stray capacitance of less than 50pF near USIM card socket. 6. It is recommended to connect the 22Ω resistors to USIM_CLK, USIM_DATA and USIM_RST to avoid EMI interference and enhance ESD protection. Meanwhile, connecting the 33pF capacitor in parallel to filter interference from EGSM900 RF signals, and keep these components close to the USIM card socket. 7. USIM_DATA is pulled up internally, which is good for improving the anti-jamming capability. When the PCB circuit of USIM card is too long or the interference is nearby, the pull-up resistor is recommended to be placed close to the USIM socket. 3.6 USB Interface The Pin definition of the M2 module USB interface is as below. Table 8 Definition of the USB interface Pin No. Pin Name Pad Type Description Comment 36 USB_DM IO USB differential data bus(minus) Require differential impedance of 90ohm 38 USB_DP IO USB differential data bus(positive) Require differential impedance of 90ohm The M2 module is compliant with USB 2.0 High Speed Mode (480Mbps) and Full Speed Mode 12Mbps). And only can be used as slave device. The USB interface is mainly for AT commands, data Figure 6 shows the circuit of the USB interface transfer, catch log, and software upgrade.
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 23／35 Figure 6 Recommended Circuit of USB Interface In order to meet the requirement for completeness of USB signal trace, R1 and R2 shall be placed near the M2 module and ESD protection components. Based on the USB 2.0 specification, please comply with the following requirements: 1. It is required to control the differential impendence -90ohm. 2. Do not route the USB signal trace under the following components: crystals, oscillator, electromagnetic component and RF signal. Keep it away from interference sources and signals susceptible to disturbance and shielding with ground. 3. If the USB interface of the M2 module is connected to the USB socket, place ESD protection component with no more than of 2pF capacitance near the USB socket. 4. Avoid the coupled noise on the USB signal trace, keep the testing stubs as short as possible. If possible, add resistor of 0 ohm or common mode choke to the USB signal trace. 3.7 Signal Control Signal Table 9 lists the pins on the signal control interface. Table 9 Definition of the pins on the signal control interface Pin No. Pin Name Pad Type Typ.(V) Description 20 W_DISABLE# DI 1.8V Disable RF communication, effective low level (inside pull up) 22, 33 PERST# DI 1.8V Reset control, low level reset (internal pull up) 42 LED_WWAN# OC — Status Indication USB_DP USB_DM GND USB_DP USB_DM GND R1 R2 Close to Module ESD Array R 0 0 R Module MCU
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 24／35 19 WAKEUP_IN DI 1.8V Sleep control pin (internal pull-down) 32 WAKEUP_OUT DO 1.8V Sleep indication 3.7.1 W_DISABLE# Signal The W_DISABLE# signal can be used to disable the RF communication , which can controlled through hardware and software. Table 10 shows the operating status of radio frequency. Table 10 Operating status of radio frequency W_DISABLE# RF status High Level Enable RF High Level Disable RF Low Level Disable RF 3.7.2 PERST# Signal PERST# signal can be used externally reset the module. PERST# 150~460ms can be pulled down to reset the module. PERST# signal is sensitive to interference, so keep the route on the module interface board as short as possible and shield with ground. Figure 7 Timing Sequence of Module Reset V IL ≤ 0.5V V IH ≥ 1.3V VBAT ms 150 Resetting Module Status Running PERST# Restart 460 ms
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 25／35 3.7.3 LED_WWAN# Signal The LED_WWAN# signal interface is OC output format and the max current can reach up to the 40mA. When it connects to LED externally, connects the resistor in serial. You can adjust the LED brightness by adjusting the resistance of resistor. When it is low, the external LED lights up. Figure 8 shows the recommended circuit of the LED_WWAN# pin. VCC Figure 8 Driving Circuit Check the LED_WWAN# signal network status indicator as below, when the M2 module is successfully registered, the LED is on. When the RF is disabled, turned off or error (No SIM card or registration failed), the LED is off. Table 11 Network status indication LED_WWAN# Description Low Level（LED is on） Successfully registered High Impedance（LED is off） 1. No Internet or registration failed 1. W_DISABLE# pin is pulled down(disable RF) 3.7.4 WAKEUP_IN and WAKEUP_OUT Signal WAKEUP_IN pin is the authorization signal of the M2 module entering sleep mode. WAKEUP_OUT pin is used to wake up the external devices. Table 12 shows the definition of the WAKEUP_IN pin and WAKEUP_OUT signal. Table 12 WAKEUP_IN and WAKEUP_OUT pin Pin Name Description WAKEUP_IN H: DTE Wake up Module L: DTE Allows to enable sleep mode LED_WWAN# R
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 26／35 WAKEUP_OUT H: Wake-up mode is on, USB and serial port are available L: Wake-up is on, USB and serial port are not available 3.8 Antenna Interface The M2 module provides three antenna pads (WIFI BT antenna pad, main antenna pad and DIV antenna pad) for connecting the external antennas. Figure 9 Antenna Interface 3.8.1 Antenna Requirements Table 13 lists the requirements for main antenna, diversity antenna and WIFI/BT antenna. Table 13 Antenna requirements Type Requirements Frequency range: 1575.42MHz Polarization: RHCP or linear VSWR: < 2 (Typ.) VSWR: ≤ 2 WIFI BT Antenna Interface Main Antenna Interface DIV Antenna Interface WIFI/BT/GPSGPSWIFI Frequency range:2412 - 2472HzBT Frequency range:2402 - 2482HzPassive antenna gain: > 0dBiPassive antenna gain: > 0dBiGain (dBi): 1
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 27／35 GSM/ WCDMA/ TD-SCDMA/ LTE Max input power (W): 50 Input resistance(ohm): 50 Polarization type: vertical Cable insertion loss: < 1dB (GSM900, WCDMA B8, LTE B8) Cable insertion loss: < 1.5dB Cable insertion loss: < 2dB 4 Electrical Interface and RF Specifications 4.1 About This Chapter This chapter describes the mainly gives the electrical interface and RF specifications of the M2 module, including:  Power Supply Ratings  IO Interface  Working Current  RF Performance  WIFI/BT Receiving Sensitivity  ESD Feature 4.2 Power Supply Ratings M2 module comes with VBAT voltage with the input voltage 3.3~3.6V and the input power at least meets the requirement of 2.3A capacity. Table shows the power range of the M2 module. Table 14 Input Power Range Parameter Description Min. Typ. Max. Unit
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 28／35 VBAT Module power supply 3.3 3.6 V 4.3 I/O Interface Table 15 shows the I/O interface of the M2 module. Table 15 I/O Interface Parameter Description Min. Max. Unit VIH High Level Input Voltage 0.7*VDDIO1) VDDIO1)+0.3 V VIL Low Level Input Voltage -0.3 0.3*VDDIO1) V VOH High Level Input Voltage VDDIO1)-0.5 VDDIO1) V VOL Notes Low Level Input Voltage 0 0.4 V 1. The voltage of PERST# and W_DISABLE VIL(max) is 0.5V. 2. VDDIO voltage is 1.8V 4.4 RF Specifications Table 16 shows the RF output power and RF receiving sensitivity of the M2 module. Table 16 RF Output Power Band Max Min GSM900 33dBm±2dB 5dBm±5dB DCS1800 30dBm±2dB 0dBm±5dB GSM900 (8-PSK) 27dBm±3dB 5dBm±5dB DCS1800 (8-PSK) 26dBm±3dB 0dBm±5dB WCDMA B1/B8 24dBm+1/-3dB <-49dBm
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 29／35 LTE FDD B1/B3/B8 23dBm±2dB <-39dBm LTE TDD B38/B39/B40/B41 23dBm±2dB <-39dBm Table 17 RF Receiving Sensitivity Band Receiving Sensitivity(Typ.) Master set +Diversity 3GPP(Main+Diversity) EGSM900 -109dBm NA NA -102dBm DCS1800 -109dBm NA NA -102dBm WCDMA Band1 -110dBm NA NA -106.7dBm WCDMA Band8 -110dBm NA NA -103.7dBm LTE-FDD B1(10M) -97dBm -97dBm -101dBm -96.3dBm LTE-FDD B3(10M) -95dBm -94dBm -96dBm -93.3dBm LTE-FDD B8(10M) -94dBm -94dBm -97dBm -93.3dBm LTE-TDD B38(10M) -97dBm -97dBm -97.5dBm -96.3dBm LTE-TDD B39(10M) -97dBm -97dBm -102dBm -96.3dBm LTE-TDD B40(10M) -97dBm -97dBm -100dBm -96.3dBm LTE-TDD B41(10M) -96dBm -96dBm -98dBm -94.3dBm 4.5 WIFI BT Receiving Sensitivity
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 30／35 The WIFI/BT receiver is disabled by default. As the WIFI/BT antenna interface connects to the power 2.95V, it is recommended to use the active antenna suitable for the voltage. 4.6 Electrostatic Discharge Characteristics Table 18 lists the ESD (Electrostatic Discharge) characteristics of the M2 module. Table 18 Electrostatics discharge characteristics Parameter Contact Discharge Air Discharge Unit Power and grounding interface +/-5 +/-10 kV Antenna Interface +/-4 +/-8 kV USB Interface +/-4 +/-8 kV USIM Card Interface +/-4 +/-8 kV Other Interface s +/-0.5 +/-1 kV
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 31／35 5 Mechanical Dimensions This chapter gives the mechanical dimensions of the M2 module, including:  Outer Dimension of the M2 module  Standard dimension of Mini PCI Express 5.1. Outer Dimension of M2 Module Figure 10 Outer Dimension of M2 Module (Unit: mm) 5.2. Standard Dimension The M2 module comes with standard interfaces.
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 32／35 Figure 11 Standard Dimension of Mini PCI Express (Unit: mm) Any qualified PCI Express Mini Card connectors are compatible with the M2 module. Figure 12 shows the connector 679100002 made of Molex Company. Figure 12 Mini PCI Express Connector (Unit: mm)
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 33／35 6 Appendix Terms and Abbreviation Table 19 Terms and Abbreviation Abbr. Description 8-PSK 8-Phase Shift Keying bps Bits Per Second CS Coding Scheme CSD Circuit Switched Data CTS Clear To Send DCE Data Communications Equipment (typically module) DL Down Link DTE Data Terminal Equipment (typically computer, external controller) DTR Data Terminal Ready EMC Electromagnetic Compatibility ESD Electrostatic Discharge FDD Frequency Division Duplexing GLONASS GLObalnayaNAvigatsionnayaSputnikovaya Sistema, the Russian Global Navigation Satellite System GMSK Gaussian Minimum Shift Keying GNSS Global Navigation Satellite System GPS Global Positioning System GSM Global System for Mobile Communications HSPA High Speed Packet Access
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.0 34／35 PAD TYPE Input/Output kbps KiloBitsPer Second LED Light Emitting Diode LTE Long Term Evolution Mbps Million Bits Per Second MCS Modulation and Coding Scheme ME Mobile Equipment MMS Multimedia Messaging Service MO Mobile Originated MS Mobile Station (GSM engine) MT Mobile Terminated PAP Password Authentication Protocol PDU Protocol Data Unit PPP Point-to-Point Protocol RF Radio Frequency RX Receive Direction SIM Subscriber Identification Module SMS Short Message Service TDD Time Division Duplexing TD-SCDMA Time Division-Synchronous Code Division Multiple Access TE Terminal Equipment TTFF Time to First Fix TX Transmitting Direction UART Universal Asynchronous Receiver & Transmitter UL Up Link UMTS Universal Mobile Telecommunications System
uCloudlink M2 Mini PCIe-C _Hardware Design Guide_V1.035／35 URC Unsolicited Result Code USSD Unstructured Supplementary Service Data WCDMA Wideband Code Division Multiple Access 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, including 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.ＦＣＣ　ＳｔａｔｅｍｅｎｔNOTICE:Please notice that if the FCC identification number 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 alabel referring to the enclosed module. This exterior label can use wording such as the following:“Contains FCC ID:2AC88-GLMM18A02” any similar wording that expresses the same meaning maybe used.This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with a minimum distance of 20cm between theradiator & your body. This transmitter must not be co-located or operating in conjunction with anyother antenna or transmitter.The module is limited to OEM installation ONLY.The OEM integrator is responsible for ensuring that the end-user has no manual instructionto remove or install module.The module is limited to installation in mobile application.A separate approval is required for all other operating configurations, including portable configurationswith respect to Part 2.1093 and difference antenna configurations.There is requirement that the grantee provide guidance to the host manufacturer for compliance withPart 15B requirements.The finished product is required to comply with all applicable FCC equipment authorisations, regulati-ons and qequipment. We will provide guidance to the host manufacturer for conpliance with the FCCpart 15B requiremnets.The OEM integrator is responsible for ensuring that the end-user has no manual instructions to rem-ove or install module.The module is limited to installation in mobile or fixed application.

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