# Database Structure: Locations Table

Structural fields
idx | integer | A unique identifier for this rack location
module | integer | Links to idx in modules, shows which module this location is a part of
name | string | A unique name for the location. Don't change these as the topology grapher needs them
Interface fields
LTL | boolean | These booleans are all true if the location provides that interface.
MTL | boolean |
ARIS | boolean |
VacuumR | boolean |
VacuumE | boolean |
RFCA | boolean |
He | boolean |
N2 | boolean |
CO2 | boolean |
Ar | boolean |
Resource fields
overhead | number |
power | number |
DDCU | number | Which DC-to-DC converter unit this location is on