Silex technology SX-NEWAH-EVK Guida utente
SX-NEWAH-EVK Start-UP Guide
silex Technology, Inc.
1. Outline
SX-NEWAH is a wireless LAN module that complies with the 915MHz band standard IEEE
802.11ah. Transmission of over 1 Mbps of 1km wireless distance (*).
By connecting this product to Raspberry Pi, the functions of SX-NEWAH can be used.
(*) The wireless distance and throughput vary depending on your environment.
2. Feature
✓IEEE 802.11ah support
✓NEWRACOM’ NRC7292 chipset
✓1/2/4MHz bandwidth
✓MCS0-7, MCS10 transfer rate (MCS10 can be used only when the bandwidth is 1MHz.)
✓WPA3(SAE/OWE)
✓The wireless setting can be retrieved and configured using a special utility.
✓MHF1 connector installed for external antennas
✓SPI host interface support
3. Notifications
✓This equipment uses 915MHz band radio.
✓As this product communicates by radio wave, it is strongly recommended to use
some security system to prevent unexpected information leakage to others.
✓This product will effect to some other device or be affected by the some other device
using the same frequency band. Please investigate the environment to use this
product beforehand.
✓Disassembling or modifying the radio module leads to punishment based on radio
law.
✓This equipment t has the exposed connectors or some devices. Please be careful for
electro static, condensing, and other dusts.
✓In the case using the other wireless devices using same frequency band around this
product, please take care below.(See IEEE802.11-2012)
✓The module is possibly interfered when strong signal is input. The other wireless
system should be enough far from this product.
✓Input level from the opponent device must be -10dBm or less with including antenna
gain.
✓Firmware of this product shall be updated without the advance notice.
4. Specifications
Evaluation KIT
Model number
SX-NEWAH-EVK
Wireless module
SX-NEWAH
Operating voltage
5.0V
Dimensions
90mm×80mm×25mm
Wireless LAN Module
Chipset
NRC7292
Wireless LAN standard
IEEE 802.11ah
Wireless mode
AP, STA
Frequency (*1)
1MHz
903.5, 904.5, 905.5, 906.5, 907.5, 908.5, 909.5, 910.5, 911.5,
912.5, 913.5, 914.5, 915.5, 916.5, 917.5, 918.5, 919.5, 920.5,
921.5, 922.5, 923.5, 924.5, 925.5(*2), 926.5(*2)
2MHz
905, 907, 909, 911, 913, 915, 917, 919, 921, 923, 925
4Mhz
910, 914, 918, 922
Modulation
OFDM
Transmission rate (MCS)
MCS0-7, MCS10 (MCS10 can be used only when the bandwidth is 1MHz.)
Transmission rate (Kbps)
150Kbps - 15Mbps
Encryption method
WPA2-PSK, WPA3 (SAE/OWE)
Antenna connector
MHF1 connector x 1
Host interface
SPI
Operating voltage
VDD33: 3.3V VDDFEM: 3.3V or 4.0V
Consumption current
(peak value)
Transmission: VDD33 98mA, VDDFEM 570mA
Reception: VDD33 55mA, VDDFEM 28mA
Operating conditions
Temperature: -40℃to 85℃
Humidity: 15 to 95%RH (no condensing)
Storage conditions
Temperature: -40℃to 85℃
Humidity: 15 to 95%RH (no condensing)
Dimensions
20.5mm×27.0mm×3.1mm
Weight
3.0g
Connector type
68 pin Surface mount
Certification standard
US(FCC), Canada (IC)
*1 This product can be used in US and Canada only.
*2 When AP mode, STA can connect to AP about 60 seconds after AP starts.
5. Before You Begin
□SX-NEWAH-EVK (SX-NEWAH (IEEE 802.11ah wireless module) is installed）
□Antenna for SX-NEWAH
□AC adaptor for SX-NEWAH-EVK
□Raspberry Pi 3 Model B (hereinafter, “Raspberry Pi”)
□AC adaptor for Raspberry Pi (5V/3A or higher)
- Recommended for the radio to operate properly in accordance to the module
specification
□Micro SD card (8GB or higher・UHS-I / Class 10 or higher)
The following items are necessary to use SX-NEWAH-EVK:
□PC (Windows 10 or higher is recommended)
(Optional. Please prepare as necessary.)
□Ethernet cable
□HDMI compatible monitor
□HDMI cable
□USB keyboard／mouse
□micro SD card reader/writer
□Terminal software (e.g. Tera Term, etc.)
➢In this document, Tera Term (Version 4.102) is used.
□Software to write an SD card image (e.g. Win32 Disk Imager, etc.)
➢In this document, Win32 Disk Imager (Version 1.0) is used.
(Refer to 7.2.2 for how to write an image using this software.)
* To use Raspberry Pi with other devices (e.g. sensor, etc.), prepare the necessary items for
it.
* This product uses the 920MHz. Recommend that prepare two of EVK in total for AP and
STA mode.
6. EVK Composition
⚫Outline
7. Environment Setup
⚫Before turning on SX-NEWAH-EVK, turn on/off the SW1 according to the below image.
(1) Connect SX-NEWAH-EVK and Raspberry Pi according to the image below.
(2) Connect the antenna of SX-NEWAH to the SMA connector.
(3) Connect the AC adaptor of SX-NEWAH-EVK to the power connector.
(4) Connect the AC adaptor of Raspberry Pi.
Before turning on SX-NEWAH-EVK, prepare a micro SD card to which an OS image is written.
To use SX-NEWAH-EVK via SSH, install the terminal software on your PC.
In this document, Tera Term is used as an example.
Following explains how to write an image using Win32 Disk Imager to the Windows
environment.
Download Win32 Disk Imager from the URL below.
https://sourceforge.net/projects/win32diskimager/
Execute the installer you have downloaded, and install it according to the instructions.
When the installation is completed, insert the micro SD card into your PC (when your PC does
not support direct connection of a micro SD card, use a micro SD card reader).
(1) When the Win32 Disk Imager is started, the below window will appear.
Click the pull-down menu to select the drive to write the image into.
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