olemus
(valgus)kaablite ühenduskoha alusplaat
= a plastic or metal tray used to organize splices between conductors at a splice point where two cables are joined together

näiteid
https://duckduckgo.com/?q=splice+tray&t=h_&iax=images&ia=images

ülevaateid
https://www.fiber-optical-networking.com/introduction-of-fiber-splice-tray.html