WB40NBT Datasheet, PDF (4/26 Pages) Laird Tech Smart Technology – This document describes key hardware aspects of the Laird SDC-WB40NBT wireless bridge module

WB40NBT
Datasheet
1 SCOPE
This document describes key hardware aspects of the Laird SDC-WB40NBT wireless bridge module. This
document is intended to assist device manufacturers and related parties with the integration of this module into
their host devices. Data in this document are drawn from a number of sources including data sheets for the
Broadcom BCM4329 and Atmel AT91SAM9G20 CPU.
Please contact Laird or visit the Laird website to obtain the most recent version of this document:
http://www.lairdtech.com/Products/WB40NBT
2 PRODUCT DESCRIPTION
The SDC-WB40NBT Wireless Bridge Module is a wireless communications subsystem
that may be integrated into a variety of host devices via a number of available electronic
and logical interfaces. The SDC-WB40NBT provides complete enterprise-class Wi-Fi
connectivity with an integrated TCP/IP stack, full support for IEEE 802.11a/b/g/n air
standards and a fully integrated security supplicant providing 802.11i/WPA2 Enterprise
authentication and data encryption.
The SDC-WB40NBT has a wide variety of interfaces including Fast Ethernet, serial UART,
USB, SPI and I2C. The wireless bridge may be configured, monitored and managed via a
Command Line Interface over an available dedicated console port, via a web interface
over a wireless or Ethernet interface, or via a remote SDK interface over wireless or
Ethernet.
The SDC-WB40NBT incorporates the Laird SDC-SSD40NBT radio module and provides all
the Wi-Fi capabilities of that device. The product features an ARM9 processor running
at 396 MHz, 32 MB of SDRAM memory, and 64 MB of NAND flash storage. Several GPIO
lines are available for data acquisition and similar applications. The platform runs an embedded Linux operating
system based on the 3.2 kernel. A Software Developer’s Kit with Application Programming Interfaces and
software tools are available for the development of custom software applications on the device.
The SDC-WB40NBT measures 47 mm long by 37 mm wide by 3 mm tall. The wireless bridge physically interfaces
to the host device via a 120 pin board to board connector that has a variety of mating options. The SDC-
WB40NBT may be secured to the host device via available grounded mounting holes. The SDC-WB40NBT
operates at temperatures between -30° to +80°C degrees Celsius.
SDC-WB40NBT is a fully integrated module: It has its own RF shielding and does not require shielding provided
by the host device into which it is installed in order to maintain compliance with applicable regulatory standards.
As such, the device may be tested in a standalone configuration via an extender card.
The SDC-WB40NBTprovides two unique U.FL type antenna connectors to support dual band transmit and
receive diversity. Supported host device antenna types include dipole and monopole antennas.
Regulatory operational requirements are included with this document and may be incorporated into the
operating manual of any device into which the SDC-WB40NBT is installed. The SDC-WB40NBT is designed for
installation into mobile devices which typically operate at distances greater than 20 cm from the human body
and portable devices which typically operate at distances less than 20 cm from the human body. See
“Documentation Requirements” for more information.
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
4
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