M2Communication MD903A1 Wireless ED Module_9 series User Manual MD903A1 FCC 20151028
M2Communication Inc. Wireless ED Module_9 series MD903A1 FCC 20151028
Contents
- 1. User Manual OEM
- 2. User Manual
User Manual
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| Document ID | 2797807 |
| Application ID | u6fclpm0Itaz1UKIB3XXrg== |
| Document Description | User Manual |
| Short Term Confidential | No |
| Permanent Confidential | No |
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| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 466.87kB (5835901 bits) |
| Date Submitted | 2015-10-29 00:00:00 |
| Date Available | 2016-04-26 00:00:00 |
| Creation Date | 2017-09-05 12:17:53 |
| Producing Software | GPL Ghostscript 9.18 |
| Document Lastmod | 2017-09-05 12:17:53 |
| Document Title | MD903A1 user manual_FCC_20151028 |
| Document Creator | PDFCreator Version 1.7.0 |
| Document Author: | arvin.cheng |
MD903A1 Wireless ED Module_9 series Feature Highlights Low voltage operation: 2.0V – 3.6V Compact size: 4cm x 2cm, ideal for embedded system Low-power consumption Lengthened battery life when used in M2C Platanus™ platform ARM Cortex-M0 up to 32MHz clock rate, with embedded 128 KB flash memory and 16 KB SRAM Frequency range: 903~927MHz Data bandwidth: up to 500kbps High receiver sensitivity: -96dBm at 500kbps Integrated power amplified up to 3.96dBm Support I C, UART, SPI, Fast IRQ and GPIOs for control interface Up to 4-channel, 12-bit ADC available for sensor interface Pre-matched RF front-end, reducing design hassles Ready-to-go Access point with TCP/IP gateway and Router are available (sold separately) Supports 128-node “star” and 16000-node “tree” network infrastructure. Applications Comply with FCC Part 15C Wireless sub-metering (plug) Wireless lighting control Low-cost solution for ultra-low power wireless link Home automation Smart rack system Remote control systems Wireless sensor network Telemedicine service Descriptions Overview MD903A1 is an easy-to-integrate low-power module for wireless-link application. With state-of-the-art TM Platanus protocol and networking kit, large network (up to 16000 nodes) can be easily formed. Equipped with ISM-band RF operated at 903~927MHz bands and popular ARM Cortex M0 32-bit MCU along with embedded flash memory and SRAM, MD903A1 is an ideal embedded solution for system integrator to develop wireless applications with no worry about design hassles. Easy to Integrate and Use Designed as the LAN module, MD903A1 has only the board area of 4cm x 2cm, compact enough for most embedded system design. An on-board antenna has been built (with option to be connected to the external antenna) and the RF matched network is calibrated to optimize the RF performance when the module is shipped, saving the design hassles for application designers. There are total 27 stamp pads on MD903A1 with multiple digital/analog interfaces: 1x I2C, 1xSPI, 2xUART, 29xGPIOs, 1x Fast Interrupt, 3xPWMs and also up to 4-channel 12bit-ADC. This brings the design flexibility to end applications that MD903A1 is easy to interface with peripheral controls and sensors. Through the robust wireless link, controlled/collected information can be easily exchanged with the upper application layers. Copyright © by M Communcation Inc. All rights reserved. This document is the sole and exclusive property of M Communication, Inc. Not to be distributed or divulged without prior written agreement. User Guide V1.0 MD903A1 Ready-to-go Sub-GHz Radio Link with Excellent Reliability The wireless link utilizes the sub-GHz radio band, requiring no special licenses (free-ISM) and certification. MD903A1 comply with the FCC part 15C regulations. Compared to the crowded 2.4GHz band, sub-GHz radio link allows better distance and penetration especially in the hostile indoor environment. In particular, with WiFi and Bluetooth packed the 2.4GHz band these days, MD903A1 is immune from the 2.4GHz interference and delivers the reliable wireless link. With the data rate of 500kbps in 2FSK, the bandwidth use efficiency is 16x better than 2.4GHz Zigbee (2MHz). MD903A1 can deliver the link budget up to 107dB (TX maximum power: 11dBm, RX Sensitivity level: -96dBm) without external adding components. The Line-of-Sight (LOS) link distance is over 300 meters. Robust Two-way Networking TM MD903A1 has a built-in protocol Platanus to support “two-way” networking, saving the SI’s design headache of linking large amounts of wireless nodes. When used with MA901A1 (Access Point), MD903A1 can support two types of network hierarchies: STAR and TREE (as shown below). When MD903A1 is configured in STAR networking, up to 250 nodes can be supported. When MD903A1 is configured in TREE network, up to 16000 nodes can be supported. Asymmetrical downlink and uplink are supported to balance between network reliability and response time, and the programmable network parameters can be used to optimize for each use scenario. Figure 1 is START network, figure 2 is TREE network. Figure 1. STAR configuration Figure2. TREE configuration TCP/IP Connectivity Each MD903A1 is assigned a 4-byte MAC address, and assigned a unique network ID when joining a network. M2C’s MA901A1 (Access Point) has already been shipped with the TCP/IP gateway and the managing software library. Thus the upper-layer application layer can access each MD903A1 in the network to exchange data “two-way” via the Ethernet or WiFi. This makes the cloud-based application developer easy to hook up with the privately-own network when building with MD903A1. Figure 3. Network Structure 2014/01 Copyright © by M Communication Inc. Page 2 of 25 User Guide V1.0 MD903A1 Ideal Platform for Low-power Application Development MD903A1 is powered by ARM Cortex-M0 with clock up to 32MHz with embedded 128K-Byte flash and TM 16K-Byte SRAM, to support built-in Platanus networking library from M2C and for peripherals, such TM as GPIO controls or serial data interfaces. The function calls for Platanus can be linked to the main program during elaboration to enable the wireless accessibility. The command library is available for development. For details, please refer to the associated documentation. TM Used with patented Platanus protocol used with M2C MA901A1 (Access Point) and/or MR1001 (Router), MD903A1 can achieve ultra-low power consumption for battery-friendly applications. The network acts in the cellular-like behavior, with sleep time configurable from 5 seconds up to 90 seconds. The reference average power consumption is as below. This only reflects the wireless link, excluding the peripherals. Sleep Time Reference Average Current Consumption 5 seconds 36.8 µA 30 seconds 15.2 µA 90 seconds 9.5 µA Pin Diagram & Components Placement Figure4. Pin diagram 2014/01 Copyright © by M Communication Inc. Page 3 of 25 User Guide V1.0 MD903A1 Figure5. Components placement 2014/01 Copyright © by M Communication Inc. Page 4 of 25 User Guide V1.0 MD903A1 Table of Contents Electrical Characteristics ................................................................................... 6 Pin Out ................................................................................................................. 9 Memory .............................................................................................................. 10 Serial Interfaces ................................................................................................ 10 4.1 4.2 4.3 4.4 4.5 General-purpose I/O (GPIO) .................................................................................................... 10 SPI ............................................................................................................................................ 11 I C ............................................................................................................................................. 11 UART ........................................................................................................................................ 12 PWM ......................................................................................................................................... 13 How to Use MD903A1 to Design & Compliance with FCC requirements ..... 14 5.1 5.2 5.3 5.4 50ohm RF Trace Calculation .................................................................................................... 14 PCB Design .............................................................................................................................. 15 PCB Layout Recommend ......................................................................................................... 17 PCB Layout Guide .................................................................................................................... 17 Antenna Characteristics .................................................................................. 18 Regulation Approval......................................................................................... 22 Recommended PCB Footprint ......................................................................... 22 Order Information ............................................................................................. 23 10 Contact Information....................................................................................... 23 2014/01 Copyright © by M Communication Inc. Page 5 of 25 User Guide V1.0 MD903A1 1 Electrical Characteristics Table 1. Absolute Maximum Rating Parameter Symbol Condition Min Supply Voltage Vdd VCC to GND Voltage on I/O Pin Temperature Range for Storage Operation Temperature Typ Max Unit -0.3 3.6 Volt VIO -0.3 Vcc + 0.3 Volt Tsto -10 +85 Topt +45 Table 2. DC Characteristics Parameter Symb ol Condition Min Power Supply Vdd see note 1 2.0 Inormal (see below) N/A Istandby Standby mode Ideep_sle Deep-sleep mode µA IRX,MB Data rate = 500kbps 2FSK 26 mA ITX1, Output power = 11.32dBm 50 mA Low-power Current Consumption Typ Max Unit 3.6 mA ep RX Mode Current Consumption TX Mode Current Consumption 11dBm Note 1: all performance parameters are guaranteed at Vdd = 3.3V 2014/01 Copyright © by M Communication Inc. Page 6 of 25 User Guide V1.0 MD903A1 Table 3. AC Characteristics Parameter Symbol Condition Min Typ Max Unit 927 MHz RF Frequency Range F915M RX Sensitivity PRx_500K Saturation Power Level Psat RSSI Range RESRSSI -82 -58 dBm Output TX Power Pout -3 11 dBm RF Data Rate DT Link Distance Rlink Link Distance Rlink 903 BER < 0.1% 2FSK, BT=0.5 500Kbps Line-of-Sight 20-byte packet length PER<1% Pout = 10dBm Line-of-Sight 20-byte packet length PER<1% Pout = 0dBm -96 dBm 10 dBm 500 Kbps 250 Meters 110 Meters 1.5 Volt ADC Max. Input Signal Vin Source Impedance Zin Resolution ENOB 12 bit Conversion time Tconv 1.25 µSec DNL +/- 4 +/- 8 LSB INL +/- 4 +/- 8 LSB Differential Nonlinearity Integral Nonlinearity 2014/01 10K Copyright © by M Communication Inc. Ω Page 7 of 25 User Guide V1.0 MD903A1 Table 4. Digital IO Specification Parameter Symbol Rise Time Tr Fall Time Tf Logic “H” Input Level Logic “L” Input Level Input Capacitance Input Impedance Maximal Output Current Logic “H” Output Level Logic “L” Output Level Condition Min Typ 10% to 90% of VCC CL=10pF, DR<1:0>=11 10% to 90% of VCC CL=10pF, DR<1:0>=11 Max Unit 10 ns 10 ns VIH VDD-0.6 VIL 0.6 Cpin pF Zpin,hiZ DC, Configured as hi-Z 10M Zpin,pl DC, Configured as pull-low 100K Ω Zpin,ph DC, Configured as pull-high 100K Ω Idrive programmable Ω mA VOH VDD-0.5 VOL 0.5 Digital I/O Specification Annotation VOH VIH 0.9VDD VIL 0.1VDD VOL Tr Tf Figure6. I/O level diagram 2014/01 Copyright © by M Communication Inc. Page 8 of 25 User Guide V1.0 MD903A1 2 Pin Out All VDDs are rated from 2.0V to 3.6V. Pin # Pin Name RF_VDD1 RF_VDD2 Type[1] I/O/PWR RF Power Input, connected with RF_VOUT PWR RF Power Input, connected with RF_VOUT PWR GPIO1 GPIO/PWM1 IO GPIO2 GPIO/PWM2 IO GPIO3 GPIO IO GPIO4 GPIO IO UART_TXD UART0_TXD output (debugger) UART_RXD UART0_RXD input (debugger) GPIO5 GPIO/I2C_CLKOUT/PWM3 10 GPIO6 GPIO/I2C_DATA/PWM4 IO 11 ICEDAT ICE DATA IN (debugger) IO 12 ICECLK ICE CLK (debugger) 13 GND Board ground 14 GPIO7 GPIO/ADC0 D/A IO 15 GPIO8 GPIO/ADC1 D/A IO 16 RXD1 UART1_RXD D/A IO 17 TXD1 UART1_TXD D/A IO 18 3.3VDD Module Power Input. 2.0V~3.6V (10mA requirement) PWR 19 GPIO9 GPIO/ADC3 D/A IO 20 GPIO10 GPIO/ADC4 D/A IO 21 GPIO11 GPIO IO 22 NC 23 RF_TEST_IO1 RF_TEST_IO1 IO 24 GPIO12 GPIO IO 25 GPIO13 GPIO IO 26 SYS_RESET SYS SYS 27 GPIO14 GPIO IO 28 GPIO15 GPIO IO 29 SPI_MOSI SPI Data Out, MOSI 30 SPI_MISO SPI Data In, MISO 31 SPI_CLK SPI Clock Output 32 SPI_CS SPI Chip Select 2014/01 Description RESERVED for USED External reset input[2] Copyright © by M Communication Inc. Page 9 of 25 User Guide V1.0 MD903A1 33 GPIO16 GPIO IO 34 GPIO17 GPIO IO 35 3.3VDD Module Power Input. 2.0V~3.6V (10mA requirement) PWR 36 GPIO18 GPIO IO 37 GPIO19 GPIO IO 38 GPIO20 GPIO IO 39 GPIO21 GPIO IO 40 RF_TEST_IO2 RF_TEST_IO2 IO 41 RF_VDDIN Module RF Power Input. 2.0V~3.6V (70mA requirement) PWR 42 RF_VOUT LDO Output for RF_VDD1 and RF_VDD2 PWR 43~45 GND Board ground 46 RFIO RF Signal 50 ohm IO RF 47~56 GND Board ground [1] D=digital, A=analog, P=power, G=ground [2] Set this pin low reset chip to initial state, with internal pull-up [3] External interrupt input 3 Memory MD903A1 is equipped with embedded 128KB flash memory and 16KB SRAM. The specification is listed as below. Currently MD903A1 does not support the external memory due to performance compromises, 4 Serial Interfaces MD903A1 support the common serial data interfaces, including GPIO, SPI, I C, and UART. Their timing and specifications are addressed at the following sections. 4.1 General-purpose I/O (GPIO) The functions of GPIOs are summarized as below: Push-Pull output Open-Drain output Input only with high impendence (100K ~ 300Kohms) All inputs with Schmitt trigger I/O pin configured as interrupt source with edge/level setting Supports input 5V tolerance 2014/01 Copyright © by M Communication Inc. Page 10 of 25 User Guide V1.0 MD903A1 4.2 SPI Figure7. SPI Slave Mode Application Diagram Figure8. SPI 32-bit In One Transaction The features of SPI interfaces are summarized as below: One SPI master controller Support clock rate up to 10MHz Configurable bit length of a transaction from 8 to 32-bit Supports byte re-ordering function LSB first or MSB first Selectable polarity of serial clock idle state 4.3 I2C Figure9. I C Protocol (7-bit addressing mode) 2014/01 Copyright © by M Communication Inc. Page 11 of 25 User Guide V1.0 MD903A1 The features of I C interfaces are summarized as below: I C master supports up to 1MHz transfer rate Bidirectional data transfer between master and slave devices A master-transmitter addresses a slave receiver with a 7-bit address. 4.4 UART Figure10. UART Data Format The features of UART interfaces are summarized as below: Two sets of UART controllers The UART0 and UART1 are built-in with a 16-byte TX_FIFO and a 16-byte RX_FIFO to reduce the number of interrupts presented to the CPU Baud rate is up to 460800 bps Support IrDA (3/16 bit modulation) function mode (optional) 2014/01 Copyright © by M Communication Inc. Page 12 of 25 User Guide V1.0 MD903A1 4.5 PWM Figure11. PWM-Timer Operation Timing The features of PWM interfaces: One 16-bit PWM controller with three output/inputs, for period and duty-cycle adjustment flexibility Each PWM output can be configured as one-shot mode to produce only one PWM cycle signal or continuous mode to output PWM waveform continuously Digital capture functions can latch the rising or falling transition at these inputs when configured. 2014/01 Copyright © by M Communication Inc. Page 13 of 25 User Guide V1.0 MD903A1 5 How to Use MD903A1 to Design & Compliance with FCC requirements The MD903A1 is a proprietary product design and manufactured by M2C (M Communication Inc.) for integrated into wireless products manufactured by M2C for sub 1GHz ISM communication application. And the chapter will complete explain how to design MD903A1 on product. 5.1 50ohm RF Trace Calculation The MD903A1 module has 50ohm impedance RF output pin (RFIO) to connect external antenna on carried board (or called Mother Board). RF trace on carried board is between RF output pin of MD903A1 and antenna on carried board and the trace must is 50ohm to obtain best RF performance. Also, 50ohm trace is recommended for PCB layout. Engineer (or Developer) can use “PCB Transmission Line calculation tool” (example: Polar) to obtain value about RF layout information on PCB. Engineer just fill in value that FR4relative parameter in “PCB Transmission Line calculation tool”, include PCB stack, substrate height, PCB dielectric, trace thickness….etc. 50ohm transmission line dimension can be got from the tool. Below figure show the PCB Transmission Line calculation tool. Fill inFR4 Parameter Figure12. Trace design for the PCB layout Example: Use 2-layer FR4 PCB to design 50ohm trace The figure 13 is 2-layers FR4 PCB parameter (PCB stack). The RF trace width and spacing that is between RF trace and ground plane and others value that is 50ohm design requires is show in figure 14. Figure13. 2-layer FR4 PCB stack Figure14. 50ohm parameter of 2-layers FR4 2014/01 Copyright © by M Communication Inc. Page 14 of 25 User Guide V1.0 MD903A1 5.2 PCB Design MD903A1 provides 3 antennas (frequency: 902MHz~928MHz) for engineer chooses, one is PIFA type antenna; the other two are dipole antenna. About antenna manufacturer and model number can refer chapter 7. When using dipole antenna on carried board, just need to make sure the impedance of RF trace is 50ohm, as below figure 15. Figure15-1.Reversed SMA connector to connect dipole antenna 50ohm RF trace Figure15-2.Reversed SMA connector to connect dipole antenna When using PIFA antenna in design PCB, need to make sure the impedance of RF trace is 50ohm. Structure of PIFA antenna can separate two parts. One is metal part that solder on PCB; the other is antenna trace on PCB. The different antenna trace length has different center frequency. Engineer can use network analyzer to fine-tune antenna trace length, so that antenna can work on required frequency (902MHz~928MHz). The trace dimension in figure18 is recommended to PCB layout. 2014/01 Copyright © by M Communication Inc. Page 15 of 25 User Guide V1.0 MD903A1 PIFA Figure16. PIFA antenna Figure17. Network analyzer to check frequency & return loss Figure18. PIFA antenna trace dimension 2014/01 Copyright © by M Communication Inc. Page 16 of 25 User Guide V1.0 MD903A1 5.3 PCB Layout Recommend RF connector: Reversed SMA connector. RF trace length is less 80mm. 5.4 PCB Layout Guide Some general rules of thumb for designing RF-related layouts for good RF performance are: Use as much continuous ground plane metallization as possible. Avoid the separation of the ground plane metallization at RF area. Use as many grounding vias (especially near to the GND pins) as possible to minimize series parasitic inductance between the ground pour and the GND pins. Use a series of GND vias (a so called “via curtain”) along the PCB edges and internal GND metal pouring edges. The maximum distance between the vias should be less than lambda/10 of the 10th harmonic. This is required to reduce the PCB radiation at higher harmonics caused by the fringing field of these edges. Avoid using long and/or thin transmission lines to connect the components. Otherwise, due to its distributed parasitic inductance some detuning effects can occur. Avoid using loops and long wires to obviate its resonances. Always ensure good VDD filtering by using some bypass capacitors (especially at the range of the operating frequency). 2014/01 Copyright © by M Communication Inc. Page 17 of 25 User Guide V1.0 MD903A1 6 Antenna Characteristics The MD903A1 RF module have 50ohm RF output pin (RFIO) to connect external 902MHz~928MHz antenna via carried board. The choice of antenna is limited to the antenna types the module has been tested with. Refer to Section 8 “Regulation Approval” for a list of tested and approved antenna types that may be used with the MD903A1 module. A list of antenna approved for use with the module is provided as below table. Antenna Type Peak Gain Model No. Manufacturer PIFA 0.3dBi AN14-000079 RESILIENT Dipole 1.42dBi CWX-614XSAXX-999 JOYMAX Dipole 2dBi GWX-282XSABX-991 JOYMAX Below antenna’s pattern are measured and provide by vender. PIFA / AN14-000079 X-Y Plane 2014/01 Copyright © by M Communication Inc. Page 18 of 25 User Guide V1.0 MD903A1 Y-Z Plane X-Z Plane 2014/01 Copyright © by M Communication Inc. Page 19 of 25 User Guide V1.0 MD903A1 Dipole / CWX-614XSAXX-999 2014/01 Copyright © by M Communication Inc. Page 20 of 25 User Guide V1.0 MD903A1 Dipole / GWX-282XSABX-991 2014/01 Copyright © by M Communication Inc. Page 21 of 25 User Guide V1.0 MD903A1 7 Regulation Approval The MD903A1 module has received regulatory approvals for modular device in the United Stated. Modular approval allows the end user to place the MD903A1 module inside a finish product and not require regulatory testing for an intentional radiator (RF transmitter), provided no changes or modifications are made to the module circuity. Changes or modifications could void the user’s authority to operate the equipment. The end user must comply with all of the instructions provided by the grantee, which indicate installation and/or operating conditions necessary for compliance. The MD903A1 has received Federal Communications Commission (FCC) CFR47 Telecommunications, Part 15 Subpart C “Intentional Radiators” 15.247 and modular approval in accordance with Part 15.212 modular Transmitter approval. The MD903A1 module can be integrated into a finished product without obtaining subsequent and separate FCC approvals for intentional radiation. The MD903A1 module has been 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 finished product into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording as follows: Contain Transmitter module FCC ID : 2AFXU-MD903A1 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. 8 Recommended PCB Footprint Figure19. Top View Outline Dimension 2014/01 Copyright © by M Communication Inc. Page 22 of 25 User Guide V1.0 MD903A1 Figure20. Recommend PCB Footprint 9 Order Information Ordering Part Number MD903A1 Frequency Band 903~927MHz Product Description MD903A1 with 50-ohm output for external antenna 10 Contact Information M2Communication Inc. (M2Comm) 4-3F, No.32, Gaotie 2nd Rd., Zhubei, Hsinchu County, Taiwan. Tel: +886-3-657-8939 Fax: +886-3-657-6909 Email: sales@m2comm.com www.m2comm-semi.com This document contains confidential information and is subject to the terms and conditions set forth in the Non2 Disclosure Agreement between the Recipient Entity and M Communication, Inc. (M2C) The information in this document is believed to be accurate in all respects at the time of publication but is subject to change without notice. M Communication, Inc. assumes no responsibility for errors and omissions, and disclaims responsibility for any consequences resulting from the use of information included herein. Additionally, M Communication, Inc. assumes no responsibility for the functioning of un-described features or parameters. M Communication, Inc. reserves the right to make changes without further notice. M Communication, Inc. makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M Communication, Inc. assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. M Communication, Inc. products are not designed, intended, or authorized for use in applications intended to support or sustain life, or for any other application in which the failure of the M Communication, Inc. product could create a situation where personal injury or death may occur. Should Buyer purchase or use M Communication, Inc. products for any such unintended or unauthorized application, Buyer shall indemnify and hold M Communication, Inc. harmless against all claims and damages. 2014/01 Copyright © by M Communication Inc. Page 23 of 25 User Guide V1.0 MD903A1 FCC Statement: Federal Communication Commission Interference Statement 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: ● 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. FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment. 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 and its antenna(s) must not be co-located with any other transmitters except in accordance with FCC multi-transmitter product procedures. Referring to the multi-transmitter policy, multiple-transmitter(s) and module(s) can be operated simultaneously without C2P. IMPORTANT NOTE: FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20 cm between the radiator & your body. IMPORTANT NOTE: This module is intended for OEM integrator. The OEM integrator is responsible for the compliance to all the rules that apply to the product into which this certified RF module is integrated. Additional testing and certification may be necessary when multiple modules are used. 20 cm minimum distance has to be able to be maintained between the antenna and the users for the host this module is integrated into. Under such configuration, the FCC radiation exposure limits set forth for an population/uncontrolled environment can be satisfied. Any changes or modifications not expressly approved by the manufacturer could void the user's authority to operate this equipment. USERS MANUAL OF THE END PRODUCT: In the users manual of the end product, the end user has to be informed to keep at least 20 cm separation with the antenna while this end product is installed and operated. The end user has to be informed that the FCC radio-frequency exposure guidelines for an uncontrolled environment can be satisfied. The end user has to also be informed that any changes or modifications not expressly approved by the manufacturer could void the user's authority to operate this equipment. If the size of the end product is smaller than 8x10cm, then additional FCC part 15.19 statement is required to be 2014/01 Copyright © by M Communication Inc. Page 24 of 25 User Guide V1.0 MD903A1 available in the user manual: This device complies with Part 15 of 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. LABEL OF THE END PRODUCT: The final end product must be labeled in a visible area with the following " Contains TX FCC ID: 2AFXU-MD903A1 ". If the size of the end product is larger than 8x10cm, then the following FCC part 15.19 statement has to also be available on the label: This device complies with Part 15 of 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. 2014/01 Copyright © by M Communication Inc. Page 25 of 25
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