# Unfitted (UN)

UN-[L0].1The Unfitted (UN) mode is used to allow train movements in either:

1. Areas that are not equipped with ERTMS/ETCS trackside equipment nor with national train control system.
2. Areas that are equipped with ERTMS/ETCS trackside equipment and/or national train control system(s), but operation under their supervision is currently not possible.

In this mode, the train speed is always displayed to the driver who has fully responsible for train movements. The driver must respect the existing line-side signals.

UN-[L0.N].1When the Acknowledgement for Unfitted symbol (MO17) is displayed with a flashing frame, the driver shall acknowledge the UN mode according to the non-harmonised rules.

MO17: Acknowledgement for Unfitted

UN-[L0.T].1To acknowledge the UN mode, the driver shall press the button with a flashing frame, as indicated in Figure UN-[L0.T].F1.

Figure UN-[L0.T].F1: Acknowledgement for Unfitted mode button (touch screen technology)

UN-[L0.S].1To acknowledge the UN mode, the driver shall press the button with a flashing frame associated to the MO17 symbol as indicated in Figure UN-[L0.S].F1.

Figure UN-[L0.S].F1: Acknowledgement for Unfitted mode button (soft key technology)

UN-[L0.N].2When the Unfitted symbol (MO16) is displayed, the driver shall apply the non-harmonised rules.

MO16: Unfitted

UN-[L0.T].2The DMI appearance when the UN mode is active is included in Figure UN-[L0.T].F2:

Figure UN-[L0.T].F2: UN mode active (touch screen technology)

FS.RUN-[L0.S].2The DMI appearance when the UN mode is active is included in Figure UN-[L0.S].F2:

Figure UN-[L0.S].F2: UN mode active (soft key technology)

UN-[L0].2The following mode transitions can be triggered from UN mode:

1. NP mode. Transition triggered when the ETCS on-board is powered off as indicated in section OFF.PWR Power off the ETCS on-board (PWR)).
2. SB mode. Transition triggered when the desk is closed as indicated in section OFF.CLS Close the desk (CLS).
3. SH mode. Transition initiated either manually by the Driver (see section SH.MAN Manual entry into SH (MAN)) or automatically by an order from the Trackside (see section SH.AUT Automatic entry into SH (AUT)).
4. FS mode. Transition usually initiated by an order from the Trackside (see section FS.RUN Running in FS (RUN)). This transition also includes a transition to level 1 or 2 initiated either manually by the Driver (see section LTR.TRS.DRV Level transition initiated by driver (DRV)) or ordered by the Trackside (see section LTR.TRS Level transitions (TRS)).
5. LS mode. Transition automatically initiated by an order from the Trackside (see section LS.APP Approaching an LS area (APP)). This transition also includes a transition to level 1 or 2 ordered by the Trackside (see section LTR.TRS Level transitions (TRS)).
6. SR mode. Transition to level 1 or 2 while the Override function is active (see section OVR.RUL Rules to pass an EOA (RUL)). This transition also includes a transition to level 1 or 2 initiated either manually by the Driver (see section LTR.TRS.DRV Level transition initiated by driver (DRV)) or ordered by the Trackside (see section LTR.TRS Level transitions (TRS)).
7. OS mode. Transition automatically initiated by order from the Trackside (see section OS.APP Approaching an OS area (APP)). This transition also includes a transition to level 1 or 2 ordered by the Trackside (see section LTR.TRS Level transitions (TRS)).
8. TR mode. Transition automatically initiated by an order from the Trackside (see section see section TR - Trip / Post Trip (TR)).
9. SF mode. Automatic transition triggered in case of a fault (see section SF - System Failure (SF)).
10. IS mode. Transition triggered when the driver isolates the ETCS on-board equipment (see section IS.ENT Entering Isolation mode (ENT)).
11. SN mode. Transition usually initiated by an order from the Trackside (see section SN - National System (SN)). This transition also includes a transition to level NTC either initiated manually by the Driver (see section LTR.TRS.DRV Level transition initiated by driver (DRV) or ordered by the Trackside (see section LTR.TRS Level transitions (TRS)).

UN-[30].1If the valid Train Data is stored on-board and the safe consist length in front the engine becomes different from zero the transition to SB is triggered (see section SB - Stand-By (SB)).