Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -rd5b22405ec6269a9fc9f56f8a27651b71a878282 -r92138116199dca3bdefe4f8e872916ea805a5d3a
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision d5b22405ec6269a9fc9f56f8a27651b71a878282)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 92138116199dca3bdefe4f8e872916ea805a5d3a)
@@ -497,6 +497,38 @@
     return result;
 }
 
+/*********************************************************************//**
+ * @brief
+ * The sendAlarmAudioVolumeSetResponse function constructs an alarm audio
+ * volume set request response to the UI and queues the msg for transmit on the
+ * appropriate CAN channel.
+ * @details Inputs: none
+ * @details Outputs: Alarm audio volume set.
+ * @param accepted flag indicating whether request was accepted
+ * @param rejReason rejection reason code
+ * @return TRUE if msg successfully queued for transmit, FALSE if not
+ *************************************************************************/
+BOOL sendAlarmAudioVolumeSetResponse( U32 accepted, U32 rejReason )
+{
+    BOOL result;
+    MESSAGE_T msg;
+    U08 *payloadPtr = msg.payload;
+
+    // Create a message record
+    blankMessage( &msg );
+    msg.hdr.msgID = MSG_ID_HD_ALARM_AUDIO_VOLUME_SET_RESPONSE;
+    msg.hdr.payloadLen = sizeof( U32 ) * 2;
+
+    memcpy( payloadPtr, &accepted, sizeof( U32 ) );
+    payloadPtr += sizeof( U32 );
+    memcpy( payloadPtr, &rejReason, sizeof( U32 ) );
+
+    // Serialize the message (w/ sync, CRC, and appropriate CAN padding) and add serialized message data to appropriate comm buffer
+    result = serializeMessage( msg, COMM_BUFFER_OUT_CAN_HD_2_UI, ACK_REQUIRED );
+
+    return result;
+}
+
 /*********************************************************************//**
  * @brief
  * The sendTreatmentParamsRangesToUI function constructs a treatment parameter
@@ -1245,6 +1277,34 @@
     result = serializeMessage( msg, COMM_BUFFER_OUT_CAN_HD_ALARM, ACK_NOT_REQUIRED );
 
     return result;
+}
+
+/*********************************************************************//**
+ * @brief
+ * The broadcastAlarmInfo function constructs an alarm information msg to
+ * be broadcast and queues the msg for transmit on the appropriate CAN channel.
+ * @details Inputs: none
+ * @details Outputs: alarm information msg constructed and queued.
+ * @param data alarm information record
+ * @return TRUE if msg successfully queued for transmit, FALSE if not
+ *************************************************************************/
+BOOL broadcastAlarmInfo( ALARM_INFO_PAYLOAD_T data )
+{
+    BOOL result;
+    MESSAGE_T msg;
+    U08 *payloadPtr = msg.payload;
+
+    // Create a message record
+    blankMessage( &msg );
+    msg.hdr.msgID = MSG_ID_HD_ALARM_INFORMATION;
+    msg.hdr.payloadLen = sizeof( ALARM_INFO_PAYLOAD_T );
+
+    memcpy( payloadPtr, &data, sizeof( ALARM_INFO_PAYLOAD_T ) );
+
+    // Serialize the message (w/ sync, CRC, and appropriate CAN padding) and add serialized message data to appropriate comm buffer
+    result = serializeMessage( msg, COMM_BUFFER_OUT_CAN_HD_BROADCAST, ACK_NOT_REQUIRED );
+
+    return result;
 }
 
 /*********************************************************************//**
@@ -1508,6 +1568,34 @@
     result = serializeMessage( msg, COMM_BUFFER_OUT_CAN_HD_BROADCAST, ACK_NOT_REQUIRED );
 
     return result;
+}
+
+/*********************************************************************//**
+ * @brief
+ * The broadcastVoltagesData function constructs a monitored voltages data msg to
+ * be broadcast and queues the msg for transmit on the appropriate CAN channel.
+ * @details Inputs: none
+ * @details Outputs: monitored voltages data msg constructed and queued.
+ * @param data Latest monitored voltage values.
+ * @return TRUE if msg successfully queued for transmit, FALSE if not
+ *************************************************************************/
+BOOL broadcastVoltagesData( VOLTAGES_DATA_PAYLOAD_T data )
+{
+    BOOL result;
+    MESSAGE_T msg;
+    U08 *payloadPtr = msg.payload;
+
+    // Create a message record
+    blankMessage( &msg );
+    msg.hdr.msgID = MSG_ID_HD_VOLTAGES_DATA;
+    msg.hdr.payloadLen = sizeof( VOLTAGES_DATA_PAYLOAD_T );
+
+    memcpy( payloadPtr, &data, sizeof( VOLTAGES_DATA_PAYLOAD_T ) );
+
+    // Serialize the message (w/ sync, CRC, and appropriate CAN padding) and add serialized message data to appropriate comm buffer
+    result = serializeMessage( msg, COMM_BUFFER_OUT_CAN_HD_BROADCAST, ACK_NOT_REQUIRED );
+
+    return result;
 }
 
 /*********************************************************************//**
@@ -2872,6 +2960,31 @@
 
 /*********************************************************************//**
  * @brief
+ * The handleAlarmAudioVolumeSetCmd function handles a alarm audio volume
+ * set request message from the UI.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleAlarmAudioVolumeSetCmd( MESSAGE_T *message )
+{
+    if ( sizeof( U32 ) == message->hdr.payloadLen )
+    {
+        U32 payload;
+
+        memcpy( &payload, &message->payload[0], sizeof( U32 ) );
+
+        setAlarmAudioVolume( payload );
+    }
+    else
+    {
+        sendAckResponseMsg( (MSG_ID_T)message->hdr.msgID, COMM_BUFFER_OUT_CAN_HD_2_UI, FALSE );
+    }
+}
+
+/*********************************************************************//**
+ * @brief
  * The handleSalineBolusRequest function handles a saline bolus request
  * message from the UI.
  * @details Inputs: none
@@ -5490,4 +5603,228 @@
     sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
 }
 
+/*********************************************************************//**
+ * @brief
+ * The handleTestMonitoredVoltagesSendIntervalOverrideRequest function handles a
+ * request to override the monitored HD voltages data publication interval.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message : a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleTestMonitoredVoltagesSendIntervalOverrideRequest( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // Verify payload length
+    if ( sizeof(TEST_OVERRIDE_PAYLOAD_T) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof(TEST_OVERRIDE_PAYLOAD_T) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetVoltagesDataPublishIntervalOverride( payload.state.u32 );
+        }
+        else
+        {
+            result = testResetVoltagesDataPublishIntervalOverride();
+        }
+    }
+
+    // Respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The handleTestMonitoredVoltageOverrideRequest function handles a
+ * request to override the monitored HD voltage override.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message : a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleTestMonitoredVoltageOverrideRequest( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_ARRAY_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // Verify payload length
+    if ( sizeof(TEST_OVERRIDE_ARRAY_PAYLOAD_T) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof(TEST_OVERRIDE_ARRAY_PAYLOAD_T) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetLineLevelOverride( payload.index, payload.state.f32 );
+        }
+        else
+        {
+            result = testResetLineLevelOverride( payload.index );
+        }
+    }
+
+    // Respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The handleTestAlarmInfoSendIntervalOverrideRequest function handles a
+ * request to override the HD alarm information broadcast interval.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message : a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleTestAlarmInfoSendIntervalOverrideRequest( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // Verify payload length
+    if ( sizeof(TEST_OVERRIDE_PAYLOAD_T) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof(TEST_OVERRIDE_PAYLOAD_T) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetAlarmInfoPublishIntervalOverride( payload.state.u32 );
+        }
+        else
+        {
+            result = testResetAlarmInfoPublishIntervalOverride();
+        }
+    }
+
+    // Respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The handleTestAlarmAudioVolumeOverrideRequest function handles a
+ * request to override the alarm audio volume level.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message : a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleTestAlarmAudioVolumeOverrideRequest( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // Verify payload length
+    if ( sizeof(TEST_OVERRIDE_PAYLOAD_T) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof(TEST_OVERRIDE_PAYLOAD_T) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetAlarmAudioVolumeLevelOverride( payload.state.u32 );
+        }
+        else
+        {
+            result = testResetAlarmAudioVolumeLevelOverride();
+        }
+    }
+
+    // Respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The handleTestAlarmAudioCurrentHgOverrideRequest function handles a
+ * request to override the alarm audio (high gain) current.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message : a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleTestAlarmAudioCurrentHgOverrideRequest( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // Verify payload length
+    if ( sizeof(TEST_OVERRIDE_PAYLOAD_T) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof(TEST_OVERRIDE_PAYLOAD_T) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetPrimaryAlarmAudioCurrentHGOverride( payload.state.f32 );
+        }
+        else
+        {
+            result = testResetPrimaryAlarmAudioCurrentHGOverride();
+        }
+    }
+
+    // Respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The handleTestAlarmAudioCurrentLgOverrideRequest function handles a
+ * request to override the alarm audio (low gain) current.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message : a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleTestAlarmAudioCurrentLgOverrideRequest( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // Verify payload length
+    if ( sizeof(TEST_OVERRIDE_PAYLOAD_T) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof(TEST_OVERRIDE_PAYLOAD_T) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetPrimaryAlarmAudioCurrentLGOverride( payload.state.f32 );
+        }
+        else
+        {
+            result = testResetPrimaryAlarmAudioCurrentLGOverride();
+        }
+    }
+
+    // Respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The handleTestAlarmBackupAudioCurrentOverrideRequest function handles a
+ * request to override the backup alarm audio current.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message : a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleTestAlarmBackupAudioCurrentOverrideRequest( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // Verify payload length
+    if ( sizeof(TEST_OVERRIDE_PAYLOAD_T) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof(TEST_OVERRIDE_PAYLOAD_T) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetBackupAlarmAudioCurrentOverride( payload.state.f32 );
+        }
+        else
+        {
+            result = testResetBackupAlarmAudioCurrentOverride();
+        }
+    }
+
+    // Respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
 /**@}*/