Rolo Interton adapter can work in the Voltmace /Videomaster family. Their carts are almost similar to Interton ones but they have an extra (and not used) pin. So, as I explained in this thread :http://atariage.com/forums/topic/229111-voltmacevideomaster-database-leap-frog-dump/page-2you only have to insert Rolo adaptor on the right side of the Voltmace connector, leaving free the first pin on the left side.
I also added some consoles to the Wikipedia page