This section contains the triplet fields (offset/length/number) that locate other sections on the record. This triplet information should be checked prior to accessing a section of the record. The ‘number’ triplet field is the primary indication of the existence of the field. This section is an extension of the header and follows it physically in the record.
| Offsets | Name | Length | Format | Description | |
|---|---|---|---|---|---|
| 0 | 0 | SMF89PRO | 4 | binary | Offset to Record Product section from start of record, including the record descriptor word (RDW). |
| 4 | 4 | SMF89PRL | 2 | binary | Length of Record Product section. |
| 6 | 6 | SMF89PRN | 2 | binary | Number of Record Product sections (1). |
| 8 | 8 | SMF89SIO | 4 | binary | Offset to System ID section from start of record, including the record descriptor word (RDW). |
| 12 | 0C | SMF89SIL | 2 | binary | Length of System ID section. |
| 14 | 0E | SMF89SIN | 2 | binary | Number of System ID sections on record (1). |
| 16 | 10 | SMF89UDO | 4 | binary | Offset to first Usage or State Data section from start of record, including the record descriptor word (RDW). |
| 20 | 14 | SMF89UDL | 2 | binary | Length of each Usage Data section or State Data section. |
| 22 | 16 | SMF89UDN | 2 | binary | Number of Usage or State Data sections on record (minimum of 0). |
| 24 | 18 | SMF89UDR | 4 | binary | Number of State Data sections remaining (or 0 for Usage Data section). |
| 28 | 1C | SMF89CNO | 4 | binary | Offset to first product intersection data section (from start of record including the RDW). |
| 32 | 20 | SMF89CNL | 2 | binary | Length of product intersection data section. |
| 34 | 22 | SMF89CNN | 2 | binary | Number of product intersection data section (minimum of 0). |