Annotation of standard text SAE AS397B :
This Aeronautical Standard covers two basic types as follows:
Type I - Air Operated
Type II - Electrically Operated
SUBJECT TAXONOMY: Avionics, Aircraft instruments, Aircraft displays, Flight control systems, Flight management systems, Displays, Smoke detection, Instrument panels, Parts, Safety, Fire detection, Tests and Testing
SUBFILE: Aerospace
TYPE OF DOCUMENT: Aerospace Standard
Stabilized: Aug 2012 