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Opto 22 has announced that it is providing wireless and wired Ethernet networking options as standard on its Snap programmable automation controllers (PACs) and I/O systems.

The wireless technology in the devices is based on the IEEE-802.11 specification with support for A, B, and G networks operating in the license-free 5GHz (802.11a) and 2.4GHz (802.11b/g) frequency bands.

That means wireless access points, routers, and repeaters from nearly any vendor can co-exist with Snap PAC wireless technology.

Security is provided via secure transmission algorithms, including WPA (TKIP) and WPA2 (802.11i/AES), to help build the robust and secure wireless communications system typically required.

In addition, Snap PAC wireless supports either infrastructure mode, where communication among devices is routed through an access point, or ad-hoc mode, where each device can detect and communicate with any other similarly configured network device within range.

Wireless local area networking (WLAN) capabilities have been added to all of Opto 22’s Ethernet-based Snap PAC system components, including its full line of intelligent Snap I/O processors and all standalone and rack-mounted programmable automation controllers (Snap PACs).

Control system designers can now architect systems with traditional Ethernet wiring, wireless Ethernet (also known as Wi-Fi), or any combination of the two, delivering networking flexibility.

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