WiFi AP Module Product Specification Model Name.: M31 M31 802.11 ac WiFi AP Module Product Specification File Name M31 802.11 ac WiFi AP Module Product Specification Revision Version B1 Release Date 20-Feb-2021 1 / 14 Copyright ©2018 Shenzhen Embstar Technology Co.,Ltd.
WiFi AP Module Product Specification Model Name.: M31 Table of Contents 1 Product Overview ............................................................... 3 2 Applications ........................................................................ 3 3 Features ............................................................................... 4 4 Block Diagram ..................................................................... 4 5 Interfaces ......................................................................
WiFi AP Module Product Specification Model Name.: M31 1 Product Overview M31 is a complete, small form factor 802.11 a/b/g/n/ac Wi-Fi Solution optimized for low power, low-cost, and highly integrated AP and consumer electronic devices, the module integrates all Wi-Fi functionality in a package friendly to low-cost PCB design, requiring only a few external 3.3V and connection to antenna. The module integrates a 2.
WiFi AP Module Product Specification Model Name.: M31 3 Features ■ Small Module Size 50mm x 30mm x 9.0mm ■ Compliant to 802.11 a/b/g/n/ac ■ DDR Memory up to 128MB ■ SPI NOR Flash memory up to 32MB ■ LAN ports and 1 WAN port ■ Supports USB 2.0 host/device(option) mode ■ Supports GPIO/LED ■ Supports AP mode and Client mode ■ Support High-Speed UART for console ■ The MIPS R24k supports 64KByte I-Cache and 32Kbyte D-Cache, targeted to operate at up to 550MHz. ■ Security: WPA/WPA2, WEP, TKIP and AES, WPS2.
WiFi AP Module Product Specification Model Name.: M31 5 Interfaces USB The USB2.0 interface support USB slave devices, such as USB storage device, USB 3G/4G dongle, USB camera, etc. UART The UART default baud rate is 115200bps. GPIO The GPIO Support 2.5/3.0/3.3V Voltage. WAN/LAN The M31 module integrates 5-port 10/100Mbps fast Ethernet switch. ANT The antenna is Ipex antenna, and is permanent connection antenna. the antenna is 2.0dBi,This antenna is permanently paired with a product to sell.
WiFi AP Module Product Specification Model Name.: M31 6 Module Specifications Hardware Features Model No.: M31 Antenna Type IPEX Chipset Solution QCA9531+QCA9887 CPU Clock Speed Up to 650MHz DDR2 Memory Up to 1024Mb Flash Memory Up to 256Mb Network 1WAN/4LAN , 10/100Mbps Interface 1xSPI, 1xUART,1xUSB2.0, 10xGPIO Voltage 3.3V±5% Dimension（LxWxH） 50mm*30mm*9.0mm Wireless Features Wireless Standards IEEE 802.
WiFi AP Module Product Specification Model Name.: M31 7 Module Pinout and Pin Definition Note: 7 / 14 I/O A digital bidirectional signal I A digital input signal O A digital output signal P A power or ground signal OA An analog output signal IA Analog input signal IH Input signals with weak internal pull-up,to prevent signals from floating when left open NC No connection should be made to this pin Copyright ©2018 Shenzhen Embstar Technology Co.,Ltd.
WiFi AP Module Product Specification Model Name.: M31 Pin No.
WiFi AP Module Product Specification Model Name.: M31 31 NC X NC 32 LAN_PORT3_RX+ IA Ethernet port 33 NC X NC 34 LAN_PORT3_RX- IA Ethernet port 35 36 37 USB + IA/OA LAN_PORT3_TX+ OA USB - IA/OA USB signal, carries USB data to and from the USB 2.0 PHY Ethernet port USB signal, carries USB data to and from the USB 2.0 PHY 38 LAN_PORT3_TX- OA Ethernet port 39 SYSTEM_LED(GPIO_13) I/O SYSTEM_LED. Don’t pull up by default 40 GND P GROUND 41 VDD_2.
WiFi AP Module Product Specification Model Name.: M31 8 PCB Footprint and Dimensions 10 / 14 Copyright ©2018 Shenzhen Embstar Technology Co.,Ltd.
WiFi AP Module Product Specification Model Name.: M31 9 Electrical Characteristics Absolute Maximum Ratings Condition Parameter Storage temperature range Min Typ. Max Unit -40 125 °C ESD Protection VESD / 2000 V Supply voltage VDD_3.3V 0 3.6 V -0.3 3.63 V Voltage on any I/O pin M31 series modules are Electrostatic Sensitive Devices and require special precautions while handling.
WiFi AP Module Product Specification Model Name.: M31 10 Order information Part Number RAM Flash Marking M31-128M16 128MB 16MB M31-128M16 M31-128M32 128MB 32MB M31-128M32 Antenna Antenna type Gain Antenna connector 2.4G ANT. 2 dBi 2.4G ANT. 2 dBi SMA Inner hole SMA Inner hole 5G ANT. 2 dBi SMA Inner hole 12 / 14 Copyright ©2018 Shenzhen Embstar Technology Co.,Ltd.
WiFi AP Module Product Specification Model Name.: M31 11 Statement FCC Statement This device complies with part 15 of the FCC rules.Operation is subject to the following two conditions: (1) this device may not cause harmful interference (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.
WiFi AP Module Product Specification Model Name.: M31 12 Contact Us Shenzhen Embstar Technology Co.,Ltd. 深圳市英贝斯泰科技有限公司 Address: Room 208, Building B, No. 133 Longsheng Road, Longxin Community, Baolong Street, Longgang District, Shenzhen, Guangdong, China Phone: 86-755-2995 0069 Email: embstar@emb-star.com Website: www.emb-star.com Website on alibaba.com:embstar.en.alibaba.com Radiation Exposure Statement: The module is limited to OEM installation only.
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. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
