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WLAN module delivers 12Mbit/s real data throughput

Posted: 30 Apr 2010 ?? ?Print Version ?Bookmark and Share

Keywords:WLAN? wireless module? 802.11b/g? application processor?

WLM400 WLAN module

Laird Technologies has released enhanced versions of its WLM400/402 802.11b/g WLAN modules that deliver a new level of performance to WLAN streaming video and high data rate applications.

While the majority of wireless modules on the market offer effective throughput in the sub-megabit range, these modules offer real throughput many times that of the sub-megabit range. Based on the Marvell 8686 WLAN chipset, they provide embedded designers both the data throughput and simplicity of a module with embedded drivers and an embedded industrial TCP/IP stack; saving months of embedded firmware development.

The WLM400 meets FCC/IC standards while the WLM402 meets CE standards. Both modules utilize a combination of a powerful ARM9 application processor and a flexible light-weight host/device API to provide a streaming channel that can deliver 12Mbps real data throughput with an 802.11g link and minimal power consumption.

Key features of these modules include the ability to be configured as a transparent bridge between a host and WLAN network, the availability of enterprise level security, a fully embedded TCP/IP stack, support for 802.11b/g specification, and low power operation. Furthermore, the modules support antenna diversity, excellent range (1500m in 802.11b), and multiple host interface ports to choose from, including UART, SPI, 10/100 Ethernet and USB. A hardware development kit is available with a reference hardware design and sample code in the form of a software development kit.

"The WLM400/402 product family offers a very powerful toolkit to embedded designers requiring high levels of data throughput with limited host processing power. We believe that these modules are perfect for applications such as video streaming," said Jim Ciccarelli, Laird senior product manager, telematics and wireless M2M. "Additionally, European applications can now take advantage of this product with the WLM402 being CE-approved."

As the only embedded WLAN modules providing this level of performance, the WLM400/402 modules are designed to make wireless integration simple with their ultimate throughput, low-power consumption, and ease of use. They are designed for streaming wireless applications, whether as infrastructure connections or video cable replacements in ad-hoc mode.

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