Automated defence ring

An automated defence ring is a technology from the Marvel portion of the Generation 1 continuity family.

A grill structure, possibly a rigid one

An automated defence ring is a type of unnamed security system designed to discourage interlopers. The ring asks a series of trivia, logic or fill-in-the-blank questions (like those regarding the Axustian creature, for example), with lethal consequences if you guess wrong.

This system does not absolutely prevent unauthorized personnel from passing through the ring, it just makes it very difficult. This is a security trade-off, but unlike a more strident system, you cannot accidentally lock yourself out, as once happened to the Autobot Earthforce.

Fiction

Marvel Comics continuity

Earthforce

These stories do not fit into the normal Marvel continuity. See Earthforce for details.

Ironhide used his experience with automated defence rings to penetrate the one surrounding the Constructicons' attempt to rebuild Devastator and destroy the project. Desert Island Risks!