Aaron, I've got a Laser 128ex. If you're running one of those it will take some playing to get ADT to work properly with it and it'd be easier to use a Super Serial or a Seriall card in slot #5 of the expansion box. Tom Tom Brennan KD5VIJ, CCC-A/SLP web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html