The Intelligent Input/Output Unit provides supervision of one or more normally open contacts connected to a single pair of cables and a set of changeover relay output contacts.
<ul class="solutions-features">
 	<li>Contains controllable isolator.</li>
 	<li>Failsafe mode (meets BS 7273-4 requirements).</li>
 	<li>Configurable input styles.</li>
 	<li>Earth fault monitoring.</li>
</ul>
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