T1 control... Been awhile. As long as you have a RS232 port, should be no problem. The SDNCII will work fine. You will need to work with the communication settings though to get this to happen. Don't be alarmed when it comes through and you look at the code. It gets translated into 3-digit G codes so editing them from a PC will be difficult unless you're absolutely sure you know what you're looking at.
If you have a number of Mazaks and you're using Mazatrol alot, have you looked into Griffo Brothers? Its Mazatrol programming at a PC. Mazak recently came out with there own PC software too, no idea on price range though.