Absolute TTL Module (ATM)
Product Announcement from Ametek Solartron Metrology
Its simplicity of interfacing with programmable systems also makes it one of the most cost effective.
The Solartron ATM module is coupled to Solartron Absolute Position Transducers and converts the output to a digital signal. The transducer signal conditioning is designed such that unlike incremental TTL systems, it will not suffer from "over speeding" or lose position during a power down.