I think that there should be a part that would receive signals from the core, and not send them (and another part that does the reverse), as the logic connector does, would allow for much more complex behavior, such as being able to send commands to a swarm of factory-produced mini-drones without having all of them be able to crosstalk. there would also be a toggleable whitelist and blacklist, where you can set up to 4 keys to be only allowed through or not be allowed through, respectively.