Have way to connect ssr relay in smoothieboard 0x ?

Have way to connect ssr relay in smoothieboard 0x ?
http://robotseed.com/index.php?id_product=101&controller=product&id_lang=1
Need add mofset or the board can drive directely with 3.3V ?
I see in my ssr 3 to 30v dc

what the more simple way to add just one ssr in this smoothieboard for non electronic knowledge people ?

You can drive it directly using 3.3v via any of the free gpio pins, see http://smoothieware.org/pinout

Good news, merci arthur