Sam,
The ITT 401 Aries was a two wire electronic 6X16 key system. A lot of features for the time and competition. They were in the mid-80s when everyone had a "new" system out there. They replaced the ITT 701 systems. Later they became the Aries Digital, little brother of the Ion- type. That was about the time ITT went to dealer distribution and cut us little guys out of the loop. Yes, I still had the manual. Oh, well............. :shrug:
