|Manufacturer||American Communication Corporation|
|Keyswitches||Futaba MR-6C series|
ACC TDD is a Telecommunications Device for the Deaf(TDD) i.e. "a teleprinter, an electronic device for text communication over a telephone line, that is designed for use by persons with hearing or speech difficulties". It connects to the telephone system using an acoustic coupler.
- Wikipedia — Telecommunications device for the deaf