Maybe I didn't explain correctly.
#1 If you will use http(s):// NS Address /Altiris/Console/Logon.aspx URL, then you will need to specify credentials to access to this page (This will be 1st auth - you still doesn't have access to SMP Console), after that you will need to choose your credentials type and specify your credentials to have an access to SMP Console (This will be 2nd auth).
#2 NS is using windows account (local or domain users) and seems like you need to have their passwords to work with PIN as well.
NS doesn't have such functionality to enable a pin generator per account to have an access to SMP Console within appropriate time range.
I can say that I have never tried such case, from #2
Regards,
IP.