Page 1: Table Of Contents
WSN27-915(B)R Module User Mnaual 1 Overview 2 BLOCK DIAGRAM 3 PIN DESCRIPTION 4 SIZE DESCRIPTION 5 SCHEMATIC DESIGN 6 Antenna Design 7 TECHNICAL SPECIFICATION 8 RADIO SPECIFICATION 9 FREQUENCY MAPPING 10 Hopping Scheme 11 TX POWER SPECIFICATION 12 RX SENSITIVITY...
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Page 3: Overview
WSN27-915(B)R LICENSE-FREE SOLUTION For Sub-1G Frequency Band 915 MHz Wi-SUN 6LoWPAN RFModule Embedded Module 1 Overview WSN27-915(B)R is a RF module compliant with interoperable Wireless Smart Ubiquitous IoT Network standard as described by IEEE® 802.15.4g/e. It is ideally suited for use as an embedded RF module in one or two-way data links with electricity meters, DA sensor, devices, terminals and concentrators.
Page 4: Pin Description
3 PIN DESCRIPTION INTERFACE PINS DEFINITION Symbol Name Definition RF Gnd Connected to power ground RF Port Module RF output, external antenna RF Gnd Connected to power ground Module debug serial port data receiving end, connecting RXD1 Debug UART1 user data sending end, RSTTL level, 3.3V Module debug serial port data sending end, connecting TXD1` Debug UART1...
Page 5: Size Description
Indicator Expansion port, connecting SRAM HOLD pin of external TXD5 IO Port equipment Expansion port, connecting SRAM WP pin of external RXD5 IO Port equipment Internal pull-up, MODE=0: Debug mode MODE=1: Normal MODE Mode Select mode SWIO IO Port Data signal of debug port SWCLK IOPort Clock signal of debug port...
Page 6: Schematic Design
5 SCHEMATIC DESIGN At the periphery of RF module, a 1206 packaged magnetic bead M1 and filter capacitor shall be connected in series to the 5 V power supply interface, and L2, C18 and C19 constitute the antenna port matching circuit. 5.1 Debug Interface as follows.
Page 7 The Wi-SUN RF module is packaged in a stamp hole patch. All I/O ports and antenna ports need to be led out from the user board. Suggested RF signal routing: PCB Layout RF routing between the module and the antenna is required to be 50Ω Impedance rule design, and trace length as short as possible.
Page 8: Technical Specification
7 TECHNICAL SPECIFICATION Parameters Index Value Description Cortex-M3 MCU, 512 KB Flash, 128 KB SRAM, sub-GHz Chip set radio Operating Frequency 902-928MHz Data Modulation GMSK Operating Mode RF channel hopping Number of Channels (50 Kbps) Interfaces Application UART & Debug UART,115200-8-n-1 Main Host Operating Voltage 3.3V ±10% Radio PA Operating Voltage...
Page 9: Frequency Mapping
9 FREQUENCY MAPPING Channel Definitions is as the following table: Frequency Frequency Frequency Frequency Center Center Center Center (MHz) (MHz) (MHz) (MHz) 902.2 905.2 908.2 911.2 902.4 905.4 908.4 911.4 902.6 905.6 908.6 911.6 902.8 905.8 908.8 911.8 903.0 906.0 909.0 912.0 903.2...
Page 10: Hopping Scheme
Frequency Frequency Frequency Frequency Center Center Center Center (MHz) (MHz) (MHz) (MHz) 926.2 926.4 926.6 926.8 927.0 927.2 927.4 927.6 927.8 10 Hopping Scheme Each module will receive at its channel according to channel order table(Channel1--Channel2 -channels--..Channel 129).If module A transmits RF frame to module B module A first know the receiving channel of module B.
Page 11: Rx Sensitivity
12 RX SENSITIVITY -108dBm@50Kbps，PER=10％ Shenzhen Friendcom Technology Co.,Ltd. Tel: +86-755-86026600 5th-6th Floor, 17 Building, Guangqian Industrial Park, Xili Town, Fax: +86-755-86026300 Nanshan District, Shenzhen, 518055, China...
Page 12 This modular complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body. Shenzhen Friendcom Technology Development Co., Ltd. /ADS-BLEnRF1-ANT902 MHz - 928 MHz:...
Page 13 Compliance list INTEGRATION INSTRUCTIONS for 996369 D03 OEM the and 996369 D03 OEM by Sections 2.2 through 2.12. Requirement Comment 2.2 List of applicable FCC rules List the FCC rules that are applicable to the FCC standards: FCC CFR Title 47 Part 15 modular transmitter.
Page 14 signaling amplitude, buffered modulation/data inputs, or power supply regulation. The alternative method could include that the limited module manufacturer reviews detailed test data or host designs prior to giving the host manufacturer approval. This limited module procedure is also applicable for RF exposure evaluation when it is necessary to demonstrate compliance in a specific host.
Page 15 compliance. The module grantee shall provide a notice that any deviation(s) from the defined parameters of the antenna trace, as described by the instructions, require that the host product manufacturer must notify the module grantee that they wish to change the antenna trace design.
Page 16 unique antenna connector must be used on the Part 15 authorized transmitters used in the host product. The module manufacturers shall provide a list of acceptable unique connectors. 2.8 Label and compliance information Grantees If the FCC identification number is not are responsible for the continued compliance of visible when the module is installed inside another device, then the outside of the...
Page 17 for compliance to any other FCC rules that When the module is installed inside another device, the apply to the host not covered by the modular user manual of the host must contain below warning transmitter grant of certification. If the grantee statements;...
Page 18 only Grantees are permitted to make permissive changes. 2.12 How to make changes Since . only Grantees are permitted to make permissive changes, it is recommended that module manufactures provide contact information and some guidance to host providers in the integration instructions if they expect their module will be used differently than granted.
Page 19 IC STATEMENT This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device must accept any interference, including interference that may cause undesired operation of the device Cet appareil contient des émetteurs / récepteurs exemptés de licence conformes aux RSS (RSS) d'Innovation, Sciences...
Page 20 The devices must be installed and used in strict accordance with the manufacturer's instructions as described in the user documentation that comes with the product.

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Wsn27-915br