Ann: H1 FY19 Performance Summary, page-5

hi - I was wondering if anyone could shed some light on how they earn their revenue. it's not clear to me from their presentations/financial reports/website....
Ie.the recurring/annuity revenue is from service contracts with customers? the non-recurring is from sales of what? the traffic monitoring system/software, or hardware (like the cameras as well).

just wanted to get a better understanding of their revenue sources and mix.

thanks v much for any insights or direction.