The Corporea Interceptor is a block added by Botania. It can be connected to a Corporea network with a Corporea Spark on top of it. Item Frames with items must be placed on the interceptor to define what triggers it.
When an item is requested in a Corporea network but the request couldn't be fulfilled, the interceptor will emit a 2-tick Redstone pulse if any of the items in item frames matches the request. If a Corporea Retainer is placed next to it, it can store the request to resend it later.