https://thorbroadcast.com/product/contact-closure-over-fiber-2-4-8-16-one-way-or-bidirectional.html/247
Contact Closure Over Fiber Converter | Dry Contact / Relay Fiber Optic System 2-16CH - Thor...
Transmit dry contact, relay, and GPIO signals over fiber with 2?16 channel contact closure converters. Supports bidirectional or simplex communication for...
contact closure over fiber
https://thorbroadcast.com/product/contact-closure-over-fiber-converter-2-to-16-channel-dry-8230.html/243
Contact Closure Over Fiber Converter | Dry Contact / Relay Fiber Optic System 2-16CH - Thor...
Transmit dry contact, relay, and GPIO signals over fiber with 2?16 channel contact closure converters. Supports bidirectional or simplex communication for...
contact closure over fiber