Cobham's Audio Management System has the ability to distribute
and control all the audio in an aircraft, to/from all transceivers,
receivers and aural alarm sources. It can also integrate warning
generator and optional cockpit amplifier and SELCAL.
Audio Management System (AMS)
The AMS consists of Audio Control Panels (ACP3000) and Audio
Management Units: AMU4242 for mission aircraft or AMU4031 for
The AMU4242 is a robust and mature product purposely designed
for special mission aircraft. It will support 10
transceivers, six receivers, three CVRs and up to 10 headsets. It
integrates SELCAL (Selective Calling), 32 alarms, and a cockpit
The AMU4031 with ACP3000 is the world's most popular Audio
Management System for commercial aviation. It has been especially
designed for Single Aisle (SA) and Long Range (LR) aircraft. The
basic installation includes three ACPs, one AMU, and can integrate
SELCAL and cockpit amplifier on some versions.