| Word | Description |
|---|---|
| Idle (Loco Status) | DCC locomotive that has been addressed by the system previously, is currently selectable by a throttle on LocoNet, and is not being refreshed. |
| Indexing | The process by which a turntable bridge is aligned with approach or stall tracks. This process can be automated by using DCC decoders. |
| Indication | The meaning given to a particular signal aspect. |
| Interoperability | One of the most important features available in a command control system. Interoperability means that you can use your DCC compatible equipment with other DCC compatible equipment made by different manufacturers. |
| In-Use (Loco Status) | DCC locomotive that is currently under the control of a throttle connected to LocoNet. An in-use loco is having its data refreshed by the command station and is not selectable by other throttles on LocoNet. The exception to this is if a throttle "steals" an in-use loco. |