OSI/AS Programming Manual

Sending and Retrieving User Data
APS Procedures Programming Concepts
2–36 056783 Tandem Computers Incorporated
Figure 2-6 illustrates the use of the two categories of PDV types.
Figure 2-6. PDV Types
Three PDV lists, each containing a single ASN.1 type (SAT) PDV:
Single
ASN.1 PDV
(PCID=x)
PDV list #1 PDV list #2
Two PDV lists, each containing two or more octet-aligned PDVs:
PDV list #1
Octet-aligned
PDV
(PCID=x)
Octet-aligned
PDV
(PCID=x)
Octet-aligned
PDV
(PCID=x)
PDV list #2
Octet-aligned
PDV
(PCID=y)
Octet-aligned
PDV
(PCID=y)
Octet-aligned
PDV
(PCID=y)
. . .
. . .
PDV list #3
Single
ASN.1 PDV
(PCID=x)
Single
ASN.1 PDV
(PCID=x)
040