https://www.controldesign.com/directory/product/11352445/ultra-electronics-machine-safety-ultra-electronics-multi-channel-contact-closures
Machine Safety: Ultra Electronics' Multi-Channel Contact Closures | Control Design
A New Line of Fiber Optic Multi-Channel Contact Closures, Designed to Convert Up to 10 Contact Closure Inputs Into Fiber Optic Signals
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https://www.dpstele.com/rtu/snmp/remote-alarm-block-176n/feature.php
Convert Contact Closures to SNMP Traps with the Remote Alarm Block 176N
Don't waste hours wiring your MDF to a distant RTU. The 176-point Remote Alarm Block 176N installs directly in your MDF and outputs SNMP traps.
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