This section describes the internal electrical operation of the KMA 24H-70/7I, an understanding of the is section is essential if it becomes necessary to use
The KMA 24H-70/7I is an audio selector panel containing both speaker and headphone isolation amplifiers. The separate isolation amplifiers provide comp 1 ete independence of speaker and headphone selection. Th I s allows the same audi0 input to be selected for both headphones and speakers who retain input isolation.
The interphone system allows a hot mic, VOX (voice operated), or keyed intercom, and controls/restrict audio to various ICS stations when desired for privacy or independence.