Meaning of LT/PE=UN in IQ16.

In case of selecting “Unknown” for PE or LT while installing, I have found a UN in iq.default.lmp file instead of “LT=/PE=” in IQ16.

[Installer]

Product Edition

    1- Enterprise Edition (EE)
    2- Small Business Edition (SE)
    3- Express Edition (XE)
    4- Single Application Edition (SA)
  ->5- Unknown

Enter one of the options above: 1

License Type

    1- CPU License (CP)
    2- CPU Development and Test License (DT)
    3- Standby CPU License (SF)
    4- OEM CPU License (AC)
    5- OEM Standby CPU License (BC)
  ->6- Unknown

/home2/gjang_home/IQ-16_0/Sysam>cat iq.default.lmp
    …
    PE=UN
    LT=UN
    email.smtp.host=smtp
    email.smtp.port=25
    email.sender=gjang
    email.recipients=gjang
    email.severity=NONE

Thanks

Gi-Sung Jang.