sPDUOutletConfigMSPallOutletCtrlMode 1.3.6.1.4.1.318.1.1.6.6.1.1.1.5

Setting this OID to modeGracefulShutdown (1) will put this outlet into the Graceful Shutdown control mode. Setting this OID to modeAnnunciator (2) will put this outlet into the Annunciator control mode.