Call Ikarus Monday morning. 239.690.0003 and ask them for help. I don't know the answer but I assumed the Multiplex would work if it would fit as long as your in PPM mode.

Also try this forum: http://www.ipacs.de/cgi-bin/ultimatebb.cgi

This is IPACS forum, mostly German forum, but they have plenty of English participants that can help you.