This section describes the header for logon device data. The total length of the data for a device is accounted for by the prefix section which follows this header structure. The prefix section will also identify the type of data returned in this header. For logon devices the data (section) type is JDTYLOGN. The following sections could be returned within this header:

• Prefix section (always first) Common prefix section (JDCXPREF)
• Logon device common section Logon device common section (JDGCLOGN)
• Logon device JES2 section Logon device JES2 section (JDG2LOGN)
• Logon device JES3 section Logon device JES3 section (JDG3LOGN)
• SNA application section (NJE) SNA application section (JDAPPLIC)(attributes of local application)
• SNA application JES2 section SNA application JES2 section (JDA2APPL)