A 24th century optronic relay
An optronic relay is a piece of technology that comes in many different sizes and has been in use since at least as early as the 22nd century.
A Kantare ship stranded on a desolate planet was equipped with optronic relays that were starting to malfunction. Trip Tucker helped repair the relays. (ENT: "Oasis")
When Dukat wanted to turn on the holofilters on his Klingon Bird of Prey as the ship was flying to Ty'Gokor, the holofilters didn't work since the optronic relays were fused. (DS9: "Apocalypse Rising")
A short time later, an optronic relay broke again, this time in the device Worf used to make Quark look like an accomplished bat'leth fighter when he was courting Grilka. (DS9: "Looking for par'Mach in All the Wrong Places")
When it seemed that Morn had died in early 2374, Chief O'Brien kept Morn's chair warm and repaired an optronic relay on the counter of Quark's Bar. (DS9: "Who Mourns for Morn?")
When Kellin and Ezri Dax were trying to figure out a way how to modify a tricorder so that it could detect the Houdinis, Ezri suggested cross-linking the optronic and isodyne relays. (DS9: "The Siege of AR-558")
See also
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