# Class B system (CBS)

## CBS.CNTControl elements (CNT)

CBS.CNT-[V].1Train specific clauses on control elements of the Class B system installed in the train.

## CBS.ONPower ON (ON)

CBS.ON-[V].1Train specific clauses to indicate how to power on the Class B system installed in the train.

## CBS.SHShunting movements (SH)

CBS.SH-[N].1Network specific clauses to indicate the conditions to perform Shunting movements under the driver’s responsibility supervised by the Class B system installed in the train.

CBS.SH-[V].1Train specific clauses to indicate how to perform Shunting movements under the driver’s responsibility supervised by the Class B system installed in the train.

## CBS.OVRPassing a restrictive signal (OVR)

CBS.OVR-[N].1Network specific clauses to indicate the conditions to authorise the driver to pass a restrictive signal supervised by the Class B system installed in the train.

CBS.OVR-[V].1Train specific clauses to indicate how passing a restrictive signal supervised by the Class B system installed in the train.

## CBS.OSOn-sight movements (OS)

CBS.OS-[N].1Network specific clauses to indicate the conditions to enable a train, supervised by the Class B system installed on the train, to enter a track section already be occupied by another train or obstructed by any kind of obstacle.

CBS.OS-[V].1Train specific clauses to indicate how to enable a train, supervised by the Class B system installed on the train, to enter a track section already occupied by another train or obstructed by any kind of obstacle.

## CBS.BRKBrakes intervention (BRK)

CBS.BRK-[V].1Train specific clauses to indicate how to manage the brake intervention of the Class B system installed on the train.

## CBS.RVReversing movements (RV)

CBS.OVR-[N].1Network specific clauses to indicate the conditions to authorise the driver to change the direction of movement of the train and drive from the same cab supervised by the Class B system installed in the train.

CBS.OVR-[V].1Train specific clauses to indicate to the driver how to change the direction of movement of the train from the same cab, in a train supervised by the Class B system installed on the train.

## CBS.OTHOther procedures (OTH)

CBS.OTH-[V].1Train specific clauses related to other procedures of the Class B system.

## CBS.DEGDegraded situations (DEG)

CBS.DEG-[V].1Train specific clauses about degraded situations of the Class B system.

## CBS.OFFShutdown (OFF)

CBS.OFF-[V].1Train specific clauses to indicate how to shut down the Class B system installed on the train.