This is a reference to the (cell) in the table specified by the companion varbind (lgpConditionTableRef) in this condition. The row in the table where this cell exists represents the object that this condition applies to. Example: TABLE ROW: lgpConditionId 5 lgpConditionDescr lgpConditionRcpBranchBreakerOpen lgpConditionTime 393884848 lgpConditionTableRef lgpPduRbTable lgpConditionTableRowRef lgpPduRbEntryId.1.4 lgpConditionType lgpConditionCurrentState active lgpConditionSeverity major lgpConditionAcknowledged acknowledged lgpConditionAckReq required The table containing the definition of the receptacle branch (lgpPduRbTable) is given by the varbind (lgpConditionTableRef) The specific receptacle branch (instance) is specified by the varbind (lgpConditionTableRowRef). In this case the condition is for the 4th receptacle branch on the 1st PDU in the PDU cluster. If one wanted to retrieve the serial number for this receptacle branch the OID would be: lgpPduRbEntrySerialNum.1.4.