Using the successful PAC45 as the foundation, the all digital PAC45A adds capabilities that have been requested from operators with unique and additional requirements. Two additional Com radios were added for more advanced operational requirements.

With a total of 8 Coms, MultiTalker® provides up to 9 unique positions so that each radio has its very own location within the stereo headset.

Up to four control heads can be connected to the PAC45A hub. Like the PAC45, the hub is the central wiring location for all of the radios with a simple RS-422 serial bus connected to each control head, making the wiring significantly easier when compared to analog audio controllers

The PAC45A integrates Receive Audio Indicator (RXI) inside the audio panel. Additionally, there are two built-in 10 watt speaker amplifiers for cockpit and public address.

Up to 9 audio alerts are also available, and through the use of IntelliStore™ each of these inputs can be custom recorded. Either rising, falling, or Sonalert inputs can activate these alerts. Once acknowledged, they are reset and then begin monitoring the inputs again. Sonalert triggers will remain active until the Sonalert voltage is removed.