Phoenix Contact’s new unidirectional RAD Line I/O solutions for the Ex zone 1 now make direct wireless transmission from potentially explosive zone 1 areas possible. The company’s RAD-ISM-2400-SET-UD-RPS-NAM-EX RAD Line I/O system allows two digital switching signals and one analog sensor signal (4-20 mA) to be picked up from Ex zones 0, 1, and 2 and transmitted to a receiver in a safe area or in Ex zone 2 (these processes are intrinsically safe).
The wireless systems, power supply, and Ex isolating amplifiers are all housed in a pressure-resistant, encapsulated casing in accordance with protection class Ex d, which is equipped with an Ex barrier for high-frequency antenna cables. This way, no igniting sparks can accidentally emanate from an antenna cable. This offers the advantage that passive standard antennas can be connected to the barrier. This does not limit the range and the transmission speed.
Trusted Wireless technology, which was specially developed for industrial applications, permits safe and interference-free transmission over extended distances of up to several kilometres. Combining the Trusted Wireless with frequency hopping technology allows up to one hundred systems to be used at the same time within close proximity of each other. This RAD Line I/O solution housed in a pressure-resistant and encapsulated casing is designed to implement customer-specific solutions.
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