OSI/AS Programming Manual

Sending and Retrieving User Data
APS Procedures Programming Concepts
056783 Tandem Computers Incorporated 2–39
Figure 2-9. One Single ASN.1 and One Octet-Aligned User Data Element With the Same PCID
User Data Header
Number of Elements = 2
User Data Element Header
PCID = px
Type = Single ASN.1 Type (SAT)
Length = lx
User Data Element Value
PDV (lx)
User Data Element Header
PCID = px
Type = Octet-aligned (OCTET)
Length = ly
User Data Element Value
PDVs (ly)
APS User Data
PDV list
PCID: px
Type: SAT
Length: lx
PDV list
PCID: px
Type: OCTET
Length: ly
PDV (lx)
PDVs (ly)
User Data in PDU
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