Index: AlarmDefs.h
===================================================================
diff -u -re8d3650276a3e98a466190962d6b4868bc6ddbe0 -r5d19e0c3aeb15b1ac020b9fc3a011632c4b4f10c
--- AlarmDefs.h	(.../AlarmDefs.h)	(revision e8d3650276a3e98a466190962d6b4868bc6ddbe0)
+++ AlarmDefs.h	(.../AlarmDefs.h)	(revision 5d19e0c3aeb15b1ac020b9fc3a011632c4b4f10c)
@@ -341,6 +341,7 @@
     ALARM_ID_HD_SERVICE_TIME_INTERVAL_HAS_ELAPSED = 303,                    ///< HD service time interval has elapsed
     ALARM_ID_HD_INVALID_USAGE_RECORD_CRC = 304,                             ///< HD invalid usage record
     ALARM_ID_HD_CPU_RAM_ERROR = 305,                                        ///< HD processor RAM error
+    ALARM_ID_HD_AC_POWER_LOST_SECOND = 306,                                 ///< HD AC power lost second alarm
     NUM_OF_ALARM_IDS                                                        ///< Total number of alarms
 };
 typedef enum Alarm_List ALARM_ID_T;                                 ///< Type for alarm list enumeration
@@ -776,7 +777,8 @@
     { ALARM_PRIORITY_HIGH,     3,  FALSE, TRUE , TRUE , TRUE , TRUE , TRUE , FALSE, FALSE, FALSE, TRUE , FALSE, FALSE, ALARM_ID_DG_CPU_RAM_ERROR,                                 0,              ALARM_ID_NO_ALARM },
     { ALARM_PRIORITY_MEDIUM, 899,  FALSE, FALSE, TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , FALSE, FALSE, ALARM_ID_HD_SERVICE_TIME_INTERVAL_HAS_ELAPSED,             0,              ALARM_ID_NO_ALARM },
     { ALARM_PRIORITY_HIGH,     1,  FALSE, TRUE , TRUE , TRUE , TRUE , TRUE , FALSE, FALSE, FALSE, TRUE , FALSE, FALSE, ALARM_ID_HD_INVALID_USAGE_RECORD_CRC,                      0,              ALARM_ID_NO_ALARM },
-    { ALARM_PRIORITY_HIGH,     3,  TRUE , FALSE, TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , FALSE, FALSE, ALARM_ID_HD_CPU_RAM_ERROR,                                 0,              ALARM_ID_NO_ALARM }
+    { ALARM_PRIORITY_HIGH,     3,  TRUE , FALSE, TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , FALSE, FALSE, ALARM_ID_HD_CPU_RAM_ERROR,                                 0,              ALARM_ID_NO_ALARM },
+    { ALARM_PRIORITY_HIGH,    18,  FALSE, FALSE, TRUE , FALSE, TRUE , FALSE, FALSE, FALSE, TRUE , TRUE , FALSE, TRUE , ALARM_ID_HD_AC_POWER_LOST_SECOND,                          0,              ALARM_ID_NO_ALARM },
 };  //   Priority            Rank  Fault DFault Stops  ClrIm  NoClr  NoRes  NoRin  NoEnd  NoBRcr NoDRcr ClrOnly TxLog  ID                                                        Escalate In     Escalate To
 
 /// Table of alarms and their rank.
@@ -1007,6 +1009,7 @@
     {  17, ALARM_ID_HD_EXCESSIVE_TILT },
     {  17, ALARM_ID_DG_EXCESSIVE_TILT },
     {  18, ALARM_ID_HD_AC_POWER_LOST },
+    {  18, ALARM_ID_HD_AC_POWER_LOST_SECOND },
     {  19, ALARM_ID_DG_COMM_TIMEOUT },
     {  20, ALARM_ID_AIR_TRAP_FILL_DURING_TREATMENT },
     {  21, ALARM_ID_OCCLUSION_BLOOD_PUMP },