ERG_PWE_HFA_L2_SPEC_HIGH | ISTP.UNITS.Empty:
  index:
    VAR_TYPE = 'support_data' and UNITS.strip() = ''.
    VAR_TYPE = 'support_data' and UNITS.strip() = ''.
ERG_PWE_HFA_L2_SPEC_LOW | ISTP.UNITS.Empty:
  index:
    VAR_TYPE = 'support_data' and UNITS.strip() = ''.
    VAR_TYPE = 'support_data' and UNITS.strip() = ''.
ERG_PWE_HFA_L2_SPEC_MONIT | ISTP.UNITS.Empty:
  index:
    VAR_TYPE = 'support_data' and UNITS.strip() = ''.
    VAR_TYPE = 'support_data' and UNITS.strip() = ''.