| Secure Your Embedded Wireless Network |
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| Jul 01 2007 | |
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advertisement: Connecting devices like medical instruments, weigh scales, printers, sensors, and other embedded devices to wireless networks allows the user to gain unprecedented freedom and mobility without the need for cumbersome cabling. Traditionally, many of these devices have been confined to a certain area, and the applications have been prone to human error when used by someone to manually collect information and then transfer it to a computer. Now that wireless networks are becoming ubiquitous, businesses are looking to connect all types of devices to the wireless network. Unfortunately, this capability is also susceptible to unauthorized users who can intercept data from outside of a building or area. That is because wireless networks use radio waves and radio waves can “leak” at distances up to 300 feet or even more. Therefore, everything on a network, including passwords, financial records, customer databases, and email, can theoretically be monitored and stolen by anyone with a laptop computer and wireless capabilities. As a result, businesses need additional levels of security on all devices on a wireless network over and above normal password protection, firewalls, and virus detections. Device Connectivity Options ![]() • Device Servers are dedicated intelligent products which typically connect to a device externally with a USB or Serial port. Software is also available that emulates a USB or Serial port on the computer; connecting to it allows existing applications to work without change. • Those looking to incorporate wireless capabilities inside the device can use an Intelligent Network Module which can interface with an existing processor via a UART or SPI connection. It will still offload the device’s processor and operating system as it includes a processor, memory, networking stacks, hardware, and software dedicated to wireless connectivity. • Higher volume manufacturers can utilize the existing processor and use embedded radio components with software on their system. There are software package options for various network and wireless drivers, protocol stacks, and wireless security options available for many processor and operating systems. It is important to use an embedded connectivity solution that supports all of the major wireless networking standards while also providing security and programmability for integrating specialized functions. |







