diff --git a/src/Devices/AtcDimetronic.cs b/src/Devices/AtcDimetronic.cs
index f7cf37d..eff70bc 100644
--- a/src/Devices/AtcDimetronic.cs
+++ b/src/Devices/AtcDimetronic.cs
@@ -32,6 +32,8 @@ namespace OpenbveFcmbTrainPlugin
             Released,
             /// <summary>The power is cut.</summary>
             NoPower,
+            /// <summary>The power is cut and an alarm plays.</summary>
+            NoPowerAlarm,
             /// <summary>The emergency brake is applied.</summary>
             BrakeEmergency,
         }
@@ -78,6 +80,9 @@ namespace OpenbveFcmbTrainPlugin
         /// <summary>Whether ATO is available or not on the train.</summary>
         private readonly bool AtoAvailable;
 
+        /// <summary>The index of the alarm sound.</summary>
+        private readonly int AlarmSoundIndex;
+
         /// <summary>Represents an ATC speed code.</summary>
         private class SpeedCode
         {
@@ -190,14 +195,16 @@ namespace OpenbveFcmbTrainPlugin
         /// <param name="runbackDistance">The distance after which the runback protection is triggered, in meters.</param>
         /// <param name="rollforwardDistance">The distance after which the rollforward protection is triggered, in meters.</param>
         /// <param name="signalCodes">The list of signal codes recognised by the device.</param>
+        /// <param name="alarmSoundIndex">The index of the alarm sound.</param>
         /// <param name="atoAvailable">Whether ATO is available or not.</param>
-        internal AtcDimetronic(double trainLength, Speed yardMaxSpeed, double runbackDistance, double rollforwardDistance, List<SignalCode> signalCodes, bool atoAvailable)
+        internal AtcDimetronic(double trainLength, Speed yardMaxSpeed, double runbackDistance, double rollforwardDistance, List<SignalCode> signalCodes, int alarmSoundIndex, bool atoAvailable)
         {
             TrainLength = trainLength;
             YardMaximumSpeed = yardMaxSpeed;
             RunbackDistance = runbackDistance;
             RollforwardDistance = rollforwardDistance;
             SignalCodes = signalCodes;
+            AlarmSoundIndex = alarmSoundIndex;
             AtoAvailable = atoAvailable;
         }
 
@@ -228,10 +235,10 @@ namespace OpenbveFcmbTrainPlugin
                 // Speed limit enforcement
                 if (AtcControlState == AtcControlStates.Released && speed > CurrentSpeedCode.WarningOn.KilometersPerHour)
                 {
-                    // Cut power above warning on threshold
-                    AtcControlState = AtcControlStates.NoPower;
+                    // Cut power above warning on threshold and play alarm
+                    AtcControlState = AtcControlStates.NoPowerAlarm;
                 }
-                if (AtcControlState == AtcControlStates.NoPower && speed < CurrentSpeedCode.WarningOff.KilometersPerHour)
+                if ((AtcControlState == AtcControlStates.NoPower || AtcControlState == AtcControlStates.NoPowerAlarm) && speed < CurrentSpeedCode.WarningOff.KilometersPerHour)
                 {
                     // Stop cutting power below warning off threshold
                     AtcControlState = AtcControlStates.Released;
@@ -281,6 +288,7 @@ namespace OpenbveFcmbTrainPlugin
                     RequestedPowerNotch = -1;
                     break;
                 case AtcControlStates.NoPower:
+                case AtcControlStates.NoPowerAlarm:
                     RequestedBrakeNotch = -1;
                     RequestedPowerNotch = 0;
                     break;
@@ -345,6 +353,17 @@ namespace OpenbveFcmbTrainPlugin
             train.Panel[34] = (int)CurrentSpeedCode.CurrentLimit.KilometersPerHour * 1000;
             train.Panel[33] = 1;
             train.Panel[35] = (int)CurrentSpeedCode.TargetLimit.KilometersPerHour * 1000;
+
+            // Play alarm sound
+            if (AtcControlState == AtcControlStates.NoPowerAlarm)
+            {
+                SoundManager.Play(AlarmSoundIndex, 1.0, 1.0, true);
+            }
+            // Stop alarm sound
+            if (AtcControlState != AtcControlStates.NoPowerAlarm && SoundManager.Playing(AlarmSoundIndex))
+            {
+                SoundManager.Stop(AlarmSoundIndex);
+            }
         }
 
 
@@ -415,6 +434,10 @@ namespace OpenbveFcmbTrainPlugin
                         // ATC alarm acknowledge
                         if (!OpenbveFcmbTrainPlugin.KeysPressed[(int)key])
                         {
+                            if (AtcControlState == AtcControlStates.NoPowerAlarm)
+                            {
+                                AtcControlState = AtcControlStates.NoPower;
+                            }
                         }
                         break;
                     case VirtualKeys.C1:
diff --git a/src/Managers/ConfigManager.cs b/src/Managers/ConfigManager.cs
index 82ba676..1f13eb2 100644
--- a/src/Managers/ConfigManager.cs
+++ b/src/Managers/ConfigManager.cs
@@ -38,6 +38,7 @@ namespace OpenbveFcmbTrainPlugin
             internal double AtcDimetronicRunbackDistance = 3;
             internal double AtcDimetronicRollforwardDistance = 100;
             internal bool AtcDimetronicAtoAvailable;
+            internal int AtcDimetronicAlarmSoundIndex = 11;
             internal List<AtcDimetronic.SignalCode> AtcDimetronicSignalCodes = new List<AtcDimetronic.SignalCode>();
         }
 
@@ -240,6 +241,14 @@ namespace OpenbveFcmbTrainPlugin
                                                 }
                                             }
                                             break;
+                                        case "alarmsoundindex":
+                                            {
+                                                if (int.TryParse(Value, out int a))
+                                                {
+                                                    PluginSettings.AtcDimetronicAlarmSoundIndex = a;
+                                                }
+                                            }
+                                            break;
                                         case "atoavailable":
                                             PluginSettings.AtcDimetronicAtoAvailable = string.Compare(Value, "false", StringComparison.OrdinalIgnoreCase) != 0;
                                             break;
diff --git a/src/Train/Train.cs b/src/Train/Train.cs
index 1d0ff1c..3bcd09c 100644
--- a/src/Train/Train.cs
+++ b/src/Train/Train.cs
@@ -98,7 +98,7 @@ namespace OpenbveFcmbTrainPlugin
             }
             if (settings.AtcDimetronicDeviceEnabled)
             {
-                Devices.Add(new AtcDimetronic(settings.TrainLength, settings.AtcDimetronicYardSpeedLimit, settings.AtcDimetronicRunbackDistance, settings.AtcDimetronicRollforwardDistance, settings.AtcDimetronicSignalCodes, settings.AtcDimetronicAtoAvailable));
+                Devices.Add(new AtcDimetronic(settings.TrainLength, settings.AtcDimetronicYardSpeedLimit, settings.AtcDimetronicRunbackDistance, settings.AtcDimetronicRollforwardDistance, settings.AtcDimetronicSignalCodes, settings.AtcDimetronicAlarmSoundIndex, settings.AtcDimetronicAtoAvailable));
             }
         }