ZTE MG3732 WCDMA Wireless Data Terminal User Manual
ZTE Corporation WCDMA Wireless Data Terminal
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User Manual
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MG3732 modules MG3732 Module User Manual Version: V1.0 ZTE Corporation MG3732 module Copyright Statement Copyright © 2010 by ZTE Corporation All rights reserved. No part of this publication may be excerpted, reproduced, translated or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without the prior written permission of ZTE Corporation. is the registered trademark of ZTE Corporation. All other trademarks appeared in this manual are owned by the relevant companies. ZTE Corporation reserves the right to make modifications on print errors or update specifications in this manual without prior notice. ZTE Corporation keeps the right to make the final explanation to this manual. MG3732 module With strong technical force, ZTE Corporation can provide CDMA/GPRS module customers with the following all-around technical support: 1. Provide complete technical documentation; 2. Provide the development board used for R&D, test, production, after-sales, etc.; 3. Provide evaluations and technical diagnosis for principle diagram, PCB, test scenarios; 4. Provide test environment; ZTE Corporation provides customers with onsite supports, and also you could get supports through telephone, website, instant communication, E-mail, etc. The module website module.ztemt.com.cn provides the relevant industry information and module technical documentation. The authorized module customers could download the latest technical documentation for our website. If you have more requirements, you could send an E-mail to module@zte.com.cn. You can also call us at 0755-86360280 for more supports. MG3732 module Preface Summary This user manual is for MC3732 modules. It takes MC3732 modules for example to give the reference to the relevant hardware design and instruct the users how to quickly and conveniently design different kinds of wireless terminals based on this type of module. Target Readers System designing engineers Mechanical engineers Hardware engineers Software engineers Test engineers Brief Introduction This manual contains 5 chapters. See the table below: Chapter Contents 1 General description Introduces MG3732 module’s basic technical specification, the relevant documents for reference and the acronyms. 2 Product introduction Introduces MG3732 module’s principle diagram. 3 PIN definitions Introduces the name and function of MG3732 module’s Pins. 4 Description of hardware interfaces Introduces the design of the hardware interface on each part of MG3732 module. 7 Mechanical design Introduces MG3732 module’s appearance diagram, assembly diagram and PCB layout diagram. Update History V1.0（2010-09-01） This is the first time to officially release the document. MG3732 module Contents General Description ...................................................................................................................................... 7 1.1 Technical Specification ................................................................................................................................. 7 1.1.1 Module’s Specification ..................................................................................................................... 7 1.1.2 Basic Functions ................................................................................................................................ 7 1.1.3 Module’s Interfaces .......................................................................................................................... 7 1.1.4 Technical parameters ........................................................................................................................ 8 1.2 Relevant Documents ................................................................................................................................... 10 1.3 Acronyms.................................................................................................................................................... 11 Product Introduction ................................................................................................................................... 14 PIN Definitions.......................................................................................................................................... 14 Decription of Hardware Interfaces ......................................................................................................... 16 4.1 Summary ..................................................................................................................................................... 16 4.2 Power and Reset ......................................................................................................................................... 17 4.2.1 Power Design ................................................................................................................................. 17 4.3 COM Port ................................................................................................................................................... 18 4.4 UIM Card Interface..................................................................................................................................... 18 4.5 Audio Interface ........................................................................................................................................... 19 4.6 PCM Interface............................................................................................................................................. 20 4.7 USB2.0 Interface ........................................................................................................................................ 21 4.8 Antenna Interface........................................................................................................................................ 22 Mechanical Design .................................................................................................................................... 23 5.1 Appearance Diagram .................................................................................................................................. 23 5.2 Module Assembly Diagram ........................................................................................................................ 24 5.3 Module’s Fixing Method ............................................................................................................................ 25 MG3732 module Graphics Figure 2-1 MG3732 Function Block Diagram .................................................................................................... 14 Figure 3-1 PIN Definitions .................................................................................................................................. 13 Figure 4-1 UART Interface Reference Design Diagram ..................................................................................... 18 Figure 4-2 UIM Card Circuit Reference Design Diagram .................................................................................. 19 Figure 4-3 Audio Interface Circuit Refrence Design Diagram ........................................................................... 19 Figure 4-4 PCM Interface’s Time Sequence ..................................................................................................... 21 Figure 4-5 USB Interface Circuit Reference Design Diagram ......................................... 錯誤! 尚未定義書籤。 Figure 5-1 MG3732 Module’s Appearance......................................................................................................... 23 Figure 5-2 Module’s Assembly Diagram ............................................................................................................ 24 MG3732 module Tables Table 1-1 Module’s specification ………………………………………………………………………………7 Table 1-2 Basic functions ………………………………………………………………………………………7 Table 1-3 Interfaces of the modules…………………………………………………………………………... 8 Table 1-4 Technical parameters ……………………………………………………………………………….8 Table 3-1 PIN definitions…………………………………………………………………………………….. 15 Table 3-1 PIN definitions…………………………………………………………………………………….. 15 Table 4-1 Voltage characteristics……………………………………………………………………………. 17 MG3732 module 1 General Description This manual is applicable for MG3732 modules. With the function of voice, SMS and data service, ZTE MG3732 module is a type of WCDMA/HSDPA/GSM/GPRS/EDGE module developed by ZTE Corporation. With the downlink peak data rate up to 3.6 Mbit/s and the uplink peak data rate up to 384 Kbit/s, the module could provide economic high-speed Internet access and wireless data service. MG3732 module could be easily applied in modem, U-modem, embedded module, wireless phone, intelligent mobile phone, multimedia mobile phone and touch screen telecom devices, etc. Taking MG3732 module for example, this manual describes the module’s logic structure, hardware interface & major functions, and provides references to the hardware and mechanical design. 1.1 Technical Specification 1.1.1 Module’s Specification Please refer to table 1-1 for the module’s specification. Table 1-1 Module’s specification Frequency(MHz) Models Format MG3732 WCDMA/HSDPA/GSM/GPRS/EDGE GSM/GPRS/EDGE： GSM850/EGSM900/DCS1800/PCS1900 WCDMA/HSDPA: 2100M（band I）, 1900M （band II）, 850M（band V） 1.1.2 Basic Functions Please refer to Table 1-2 for the basic functions. Table 1-2 Basic functions Item Description Voice call Circuit-switching service Packet data Packet data service SMS Support TEXT 1.1.3 Module’s Interfaces Please refer to Table 1-3 for the module’s interfaces. MG3732 module Table 1-3 Interfaces of the modules Interfaces Descriptions Power interface Supply power to the module, reset the module or turn on/off the module Audio interface Double audio I/O channel, one for differential, one for single end USIM interface R-UIM USB USB2.0 High Speed interface UART interface Hardware full flow control port, customized by software PCM interface Transmit voice data for Bluetooth applications Antenna interface 50 Ohm input resistance control 1.1.4 Technical parameters Please refer to Table 1-4 for the module’s technical parameters. Table 1-4 Technical parameters Items Descriptions Working temperature -10°C ~ +50°C Input voltage 3.3V-4.25V Maximum current 1800mA @ -102 dBm Standby current (average) 10mA @ -75 dBm Call current 230mA @ -75 dBm Rx. Sensitivity -106.5dBm Max. Tx power GSM850，EGSM900：33dBm(2W) GSM1800，PCS1900：30dBm(1W) WCDMA：23dBm Frequency GSM850： Tx: 824~849 MHz Rx: 869~894 MHz range EGSM900 Tx: 880~915 MHz Rx: 925~960MHz DCS1800 Tx: 1710~1785MHz Rx: 1805~1880MHz PCS1900 Tx: 1850~1910MHz Rx: 1930~1990MHz WCDMA 2100： Tx: 1920-1980MHz Rx: 2110-2170MHz MG3732 module WCDMA 1900： Tx: 1850-1910MHz Rx: 1930-1990MHz WCDMA 850： Tx: 824-849MHz Rx: 869-894MHz ： 1.2.1 Maximum Output Power Operating Band Power Class 1 Power Class 2 Power Class 3 Power Class 4 Power (dBm) Tol (dB) Power (dBm) Tol. (dB) Power (dBm) Tol (dB) Power (dBm) Tol (dB) Band I +33 +1/-3 +27 +1/-3 +24 +1/-3 +21 +2/-2 Band II +24 +1/-3 +21 +2/-2 Band V +24 +1/-3 +21 +2/-2 1.2.2 Frequency Error Operating Band Frequency Error Band I ＜0.1 PPM Band II ＜0.1 PPM Band V ＜0.1 PPM 1.2.3 Minimum Output Power Operating Band Minimum Output Power（dBm） Band I ＜-50 Band II ＜-50 Band V ＜-50 1.2.4 Error Vector Magnitude（EVM） Parameter Level / Status Output power 20 dBm Operating conditions Normal conditions Power control step size 1 dB EVM ＜17.5 % 1.2.5 Peak Code Domain Error Parameter Level / Status Output power 20 dBm Operating conditions Normal conditions Power control step size 1 dB 1.2.6 Occupied Bandwidth Peak Code Domain Error ＜-15dB MG3732 module Operating Band Occupied Bandwidth Chip Rate ＜5MHz 3.84Mcps Band I Band II Band V 1.2.7 Adjacent Channel Leakage Power Ratio（ALCR） Power Class UE channel ACLR limit +5 MHz or 5 MHz 33 dB +10 MHz or 10 MHz 43 dB +5 MHz or 5 MHz 33 dB +10 MHz or 10 MHz 43 dB 1.2.1 Reference Sensitivity Level（BER≤0.001） Operating Band Unit DPCH_EcBand I Band II Band V dBm/3.84 MHz dBm/3.84 MHz dBm/3.84 MHz -117 -115 -115 -106.7 -104.7 -104.7 1. For Power class 3 this shall be at the maximum output power 2. For Power class 4 this shall be at the maximum output power 1.2.2 Maximum Input Level（BER≤0.001） Parameter Level / Status Unit 25.7 dBm / 3,84MHz 19 dB Îor DPCH _ E c I or UE transmitted mean power 20 (for Power class 3 ) dBm 18 (for Power class 4) 2.GSM/GPRS/EDGE Item Out Power （GSM） Out Power（EDGE） Sensitivity Frequency Error Max（°） Phane Error RMS（°） GSM 850MHz/900MHz GSM 1800MHz/1900MHz 2W (+33dBm) 1W (+30dBm) 500mW (+27dBm) 400mW (+26dBm) ＜-102dBm ＜-102dBm ＜0.1 PPM ＜0.1 PPM ≤20 ≤20 ≤5 ≤5 1.2 Relevant Documents 10 MG3732 module 《AT Command Manual for ZTE Corporation's MG3732 Modules》 《Wireless Module Test References》 1.3 Acronyms ADC Analog-Digital Converter AFC Automatic Frequency Control AGC Automatic Gain Control ARFCN Absolute Radio Frequency Channel Number ARP Antenna Reference Point ASIC Application Specific Integrated Circuit BER Bit Error Rate BTS Base Transceiver Station CDMA Code Division Multiple Access CDG CDMA Development Group CS Coding Scheme CSD Circuit Switched Data CPU Central Processing Unit DAI Digital Audio interface DAC Digital-to-Analog Converter DCE Data Communication Equipment DSP Digital Signal Processor DTE Data Terminal Equipment DTMF Dual Tone Multi-Frequency DTR Data Terminal Ready EFR Enhanced Full Rate EGSM Enhanced GSM EMC Electromagnetic Compatibility EMI Electro Magnetic Interference ESD Electronic Static Discharge ETS European Telecommunication Standard FDMA Frequency Division Multiple Access 11 MG3732 module FR Full Rate GPRS General Packet Radio Service GSM Global Standard for Mobile Communications HR Half Rate HSDPA High Speed Downlink Packet Access IC Integrated Circuit IMEI International Mobile Equipment Identity ISO International Standards Organization ITU International Telecommunications Union LCD Liquid Crystal Display LED Light Emitting Diode MCU Machine Control Unit MMI Man Machine Interface MS Mobile Station PCB Printed Circuit Board PCL Power Control Level PCS Personal Communication System PDU Protocol Data Unit PLL Phase Locked Loop PPP Point-to-point protocol RAM Random Access Memory RF Radio Frequency ROM Read-only Memory RMS Root Mean Square RTC Real Time Clock SIM Subscriber Identification Module SMS Short Message Service SRAM Static Random Access Memory 12 MG3732 module TA Terminal adapter TDMA Time Division Multiple Access TE Terminal Equipment also referred it as DTE UART Universal asynchronous receiver-transmitter UIM User Identifier Management UMTS Universal Mobile Telecommunications System USB Universal Serial Bus VSWR Voltage Standing Wave Ratio WCDMA Wide band Code Division Multiple Access ZTE ZTE Corporation 13 MG3732 module 2 Product Introduction Please refer to Figure 2-1 for the function block diagram of MG3732. Figure 2-1 MG3732 Function Block Diagram MG3732 module is WCDMA 3G wireless module developed based on Qualcomm’s QSC6270 platform. MG3732 module adopts a 36PIN stamp hole, which is applicable for both WCDMA and GSM network. It supports 850/900/1800/1900/2100 frequency band. 3 PIN Definitions MG3732 module adopts a 36PIN stamp hole and the distance between PINs is 0.5mm. Refer to table 3-1 below for PIN definitions. Refer to table 3-2 for the key voltage of each pin. 14 MG3732 module Table 3-1 PIN definitions VREG_USIM GND USIM_RST GND 36 35 USIM_CLK SIG_LED 34 USIM_DATA PCM_DIN 33 32 31 30 29 MIC2_P 10 MIC1_P USB PCM LED GND EAR2_P MG3732MD_A PCM_DOUT(DC UART D) ANT Remarks USIM_RST USIM card reset signal USIM_CLK USIM card clock USIM_DATA I/O Audio 10 11 19 /CTS 2.85V/1.8V RF_ANT RXD EAR2_P EAR1_P EAR1_N MIC2_P MIC1_P MIC1_N USIM card data cable Single-end audio output channel 2 Differential audio output channel 1, anode Differential audio output channel 1, cathode Single-end channel 2 audio input Differential audio channel 1, anode input Differential audio channel 1, cathode input 15 27 GND /RTS TXD VREG_USIM 28 26 25 24 23 22 21 20 /DTR RI USB_DP R) Refer to table 3-1 below for PIN definitions of MG3732 module. Table 3-2 PIN definitions Function Pin No. Signal name I/O Basic functions USB_DM PCM_SYNC(/DS V_MAIN SIM card interface PCM_CLK ON/OFF POWER EAR1_N AUDIO EAR1_P MIC1_N 11 GND 12 13 /PON_RESET VBUS 14 VCHG 15 V_MAIN 16 17 V_MSME_1V8 18 UIM MG3732 module Reset Power UART PCM 13 /PON_RESET Reset signal Low level valid 14 VBUS USB power +5V 15 VCHG Charge power 16 V_MAIN Module’s main power 3.3V-4.2V 17 V_MSME_1V8 Digital power Voltage output, 1.8V 18 V_MAIN Module’s main power 3.3V-4.2V 29 ON/OFF Power on/off control 1.8V, Low level valid 21 /CTS Clear to send 1.8V, Low level valid 22 RXD Receive data 1.8V 23 TXD Transmit data 1.8V 24 RI Ring tone 1.8V 25 RTS Request to send 1.8V, Low level valid 26 /DTR Data terminal ready 1.8V, Low level valid 27 PCM_DOUT （DCD） PCM data output 1.8V, duplex with DCD 28 PCM_SYNC （/DSR） PCM frame SYNC clock 1.8V, /DSR 32 PCM_CLK PCM data clock 1.8V 33 PCM_DIN PCM data input 1.8V USB interface 30 USB_DP I/O USB data+ 31 USB_DM I/O USB data- LED 34 Antenna 19 GND SIG_LED RF_ANT Module’s working status LED I/O Antenna interface 5、12、 GND 20、35、 36 4 Decription of Hardware Interfaces 4.1 Summary 16 duplex with MG3732 module This chapter introduces each logic function interfaces of MG3732 module & its operation descriptions, and provides the designing sample. Power and Reset Interface COM Port UIM Card Interface Audio Interface PCM interface USB2.0 interface Antenna Interface Remarks: In the system, the module layout should be far away from high-speed circuit, switch power, power transformer, large power inductor, or single chip microcomputer’s clock circuit. 4.2 Power and Reset 4.2.1 Power Design The module could work under two power modes: 1. Power adaptor; 2. Battery The power could directly be supplied externally, the external power is added directly to V_MAIN and meets the voltage requirements in table 4-1. The external power could be supplied by the power adaptor with constant output, battery, USB power converter, etc. It’s recommended to design 2A current to meet the requirements of GSM/GPRS. Table 4-1 Voltage characteristics Classification MIN. Typical Max. Input voltage 3.3 V 3.8 V 4.25 V Power on The module will be turned off after power-on normally. To turn on the module, provide a 2000-2500mS low level pulse to ON/OFF PIN. Power off To turn off the module, provide a 2500-4000mS low level pulse to ON/OFF PIN. Reset To reset the module, provide a 2500-4000mS low level pulse to ON/OFF PIN After reset, the module will be turned off. To turn on the module, provide a 2000-2500mS low level pulse to ON/OFF PIN. V_MSME_1V8 There is a voltage output pin with current adjuster on MG3732 module, which can be used to supply external power to the board. The voltage of this pin and the voltage of baseband processor/memory come from the same voltage adjuster. The voltage output is available only when the module is on. The normal output voltage is 1.8V, and the user should absorb the current from this pin as little as possible (less than 10mA). Generally, it is recommended to use this pin for pull-up when matching the level. 17 MG3732 module Other Advice In order to make sure the data is saved safely, please don’t cut off the power when the module is on. It’s strongly recommended to use ON/OFF pin or AT command to turn off the mobile phone. 4.3 COM Port The module provides a full duplex UART interface, whose maximal data rate is 230.4kbps and typical data rate is 11.5kbps. External interface is 1.8VCMOS level signal, which could be used for upgrade, port communication, etc. When using MG3732 module’s UART port to communicate with PC or MCU, please pay attention to the direction of TX, RX. It’s specially noted that MG3732 module’s UART port only supports 1.8V, therefore for non 1.8V external UART, it needs to convert the level. Normally a dynatron is used to realize the level conversion. As shown in figure 4-1, the resistance is just for your information, please calculate again during the design. Figure 4-1 UART Interface Reference Design Diagram 4.4 UIM Card Interface 18 MG3732 module The module supports 2.85V/1.8V UIM card, and it’s strongly recommended to add ESD component to protect UIM card as shown in figure 4-2. Figure 4-2 UIM Card Circuit Reference Design Diagram Note: The clock data rate of UIM card circuit is 4M, and the card socket should be laid closely around the module and the wiring should be as short and thick as possible. 4.5 Audio Interface The module provides 2 speaker interfaces and 2 microphone interfaces. Only one pair I/O works at the same time. See the audio interface circuit in figure 4-3. Figure 4-3 Audio Interface Circuit Reference Design Diagram Microphone The two microphone interfaces MIC_N and MIC_P are differential interface, which could also be used for single end input. It’s recommended to use differential mode to reduce the noises and it is directly connected with 19 MG3732 module the receiver. MIC_P is single ended interface, which could be directly connected to the microphone since the offset voltage is internally provided. Earpiece The earpiece interface EAR1_P and EAR1_N are both differential interfaces with 32Ω resistance; EAR2_P is single-ended interface with 32Ω resistance and no coupling of capacitor is required. Design of audio interface on the receiver Select the microphone with the sensitivity lower than -52dB since EAR1’s output power is 35mW and the max. gain inside MIC1 reaches 52dB. Note: if other kind of audio input method is adopted, the input signal should be within 1V. If the signal voltage is lower than 1V, then the pre-amplifier should be added. If the signal voltage is higher than 1V, then network attenuation should be added Design of audio interface on the earpiece Select the microphone with the sensitivity lower than -52dB since EAR2’s output power is 10.8mW and the max. gain inside MIC2 reaches 52dB. The level of MIC2_P PIN is about 1.8V. The receiver’s design is just the same as the receiver’s. 4.6 PCM Interface The module’s PCM interface provides PCM_CLK, PCM_SYNC, PCM_DIN, PCM_DOUT，and it supports 2.048MHz PCM clock data rate and 8K frame data rate. PCM clock will stop the output when it enters the dormant mode. The module’s PCM interface must work under Master mode, and the clock and SYNC signal must be sent by the module. The device connected with the interface can word under Slave mode only. See the time sequence of PCM interface in figure 4-4. 20 MG3732 module Figure 4-4 Time Sequence of PCM Interface 4.7 USB2.0 Interface The module provides USB2.0 HS interface with 480Mbps, which is composed of VBUS, D+ and D-. You can directly connect USB signal interface when designing the module’s external circuit, but try to add ESD 21 MG3732 module protector during the design to avoid damaging the module. D1 is USB2.0 ESD protector in the figure, and the Junction capacitance is small than 3P. VBUS is connected to the external host VBUS. The USB operating voltage is: 4.75—5.25V with the typical value of 5V. See figure 4-5. Figure 4-5 USB Interface Circuit Reference Design Diagram 4.8 Antenna Interface Proper measures should be taken to reduce the access loss of effective bands, and good shielding should be established between the external antenna and the RF connector. Besides, the external RF cables should be kept far away from all interference sources such as high-speed digital signal or switch power supply. According to mobile station standard, stationary wave ratio of antenna should be between1.1 to 1.5, and input impedance is 50 ohm. Different environments may have different requirements on the antenna’s gain. Generally, the larger gain in the band and smaller outside the band, the better performance the antenna has. Isolation degree among ports must more than 30dB when multi-ports antenna is used. For example, between two different polarized ports on dual-polarized antenna, two different frequency ports on dual-frequency antenna, or among four ports on dual-polarized dual-frequency antenna, isolation degree should be more than 30dB. 22 MG3732 module 5 Mechanical Design 5.1 Appearance Diagram See the appearance of MG3732 module in figure 5-1. Figure 5-1 MG3732 Module’s Appearance Dimensions:（LxWxH）：39.5 mm x 31.0mm x2.65mm Weight: 7g 23 MG3732 module 5.2 Module Assembly Diagram See the assembly diagram of MG3732 module in figure 5-2. Figure 5-2 Module’s Assembly Diagram Note: it’s recommended to open a window in the relevant position of the red area on the bottom layer for the convenience of maintenance. The red box is made manually and doesn’t exist on the actual object. See the dimensions for the hole in the figure above. 24 MG3732 module 5.3 Module’s Fixing Method The module’s fastening method adopts direct manual soldering to avoid second-time soldering. It’s strongly recommend to use the manual soldering because MC3732 module board is just 0.8mm thick and QSC6270 BGA space is too small. The second-time soldering would cause the melting of soldering tin and lead to short circuit of QSC6270 main chip, such as USB disconnected, large current, etc. FCC Regulations: 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. This device 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 radiated 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 or more of the following measures: -Reorient or relocate the receiving antenna. -Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. Changes or modifications not expressly approved by the party responsible for compliance could void the user‘s authority to operate the equipment. RF Exposure Information This Modular Approval is limited to OEM installation for mobile and fixed applications only. The antenna installation and operating configurations of this transmitter, including any applicable source-based time-averaging duty factor, antenna gain and cable loss must satisfy MPE categorical Exclusion Requirements of §2.1091. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons, must not be collocated or operating in conjunction with any other antenna or transmitter, except in accordance with FCC multi-transmitter product procedures. The end user has no manual instructions to remove or install the device and a separate approval is required for 25 MG3732 module all other operating configurations, including portable configurations with respect to 2.1093 and different antenna configurations. Maximum antenna gain allowed for use with this device is 2 dBi. When the module is installed in the host device, the FCC ID label must be visible through a window on the final device or it must be visible when an access panel, door or cover is easily re-moved. If not, a second label must be placed on the outside of the final device that contains the following text: “Contains FCC ID: Q78-MG3732. 26
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