Only applicable if sPDUOutletConfigMSPgsLowBattWarning OID is
set to -1 (On Runtime Remaining).
Allows you to set the value to stagger the shutdown sequence of the outlets.
1 provides the longest delay (the outlet to shutoff first), and 7 would
provide the shortest delay (the outlet to shut off last).
Allowed values are:
1 - 7.