Automatic Systems

The Automatic Defense Systems, aka Defense Systems, autosys, or ADM, are a set of functions that can be toggled on or off to provide safety and security within and without the TT Capsule. The autosys includes the banshee system, temporal grace field, exterior force shields, and life support. These systems can be toggled on and off by the blue switches.

Banshee Systems
The banshee systems (not to be confused with the Console Circuit) of the TARDIS keep the users and inhabitants of the TARDIS as safe as possible while inside the interior. They apply a regeneration effect to any registered users of the Capsule. To register an entity to the TARDIS, the Pilot must use the Companion Menu in the Master Control Interface. Any unregistered users who come close to the MCC will be rendered weak and unable to move. In addition, any entity in the TARDIS holding a block of TNT will be instantly transported to the Catch-All Area, where they will be detained until they let go of the TNT.

One aspect of the Banshee Systems remains active even when the TARDIS is shut down. This is the Explosion Prevention Circuit. Any primed TNT or ignited creeper in the console room will be instantly diverted away from the console. The energy from the explosion will be rerouted to the Artron Capacitor. There is no overriding this function.

Temporal Grace Field
The Temporal Grace Field causally prohibits the use of ranged weapons in the TARDIS. Any arrows fired will be frozen in mid-air. The same applies to tridents. However, melee combat can still be executed.

Exterior Force Shields
The exterior force shields of the Type 89.5 are less than a millimeter thick, but they are powerful enough to withstand the force of physical attacks from any entity in existence, save those in creative mode. This feature protects the exterior of the capsule from physical harm and causes the ship to be invulnerable.

Life Support
The life support systems of the TARDIS allow a user to breathe underwater even when outside of the capsule.