AF3600 Transfer Unit to provide seperate audio and door release functions in building with 2 or more entries.

AF3600 Transfer Unit -Function: to provide seperate audio and door release functions in building with 2 or more entries.
Used With:The AF3600 is issued in combination with the Model AF1000 amplifier and Model 3400 series apartment stations
Controls: Tone and Voice Volume Control, Steady or Warble Call Tone, Warble Entrance Tone, Timed Door Release,Postal Lock Door
Power: AC/DC Optional
Size: 7 1/4″L x 3 1/2″W x 1 1/4″H
Previous Model: FMC36
Mounting: Surface mounted in utility room or behind indoor lobby panel