This section describes the internal electrical operation of the KMA 24H-70/7I, an understanding of the is sect ion 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 select ion. Th i s allows the same audi0 input to be selected for both headphones and speaker who retaining input isolation. The interphone system allows hot mic, VOX (voice operated) or keyed intercom, and controls/ restricts audio to various ICS stations when desired for privacy or independence.