The Flight Deck Audio Panel (FDAP) provides flight crewmembers access to conference interphone networks, radio channels, guard channels, NAVAIDs, and selective interphone networks.
 
The panel features separate volume controls for the individual channels as well as a master volume control. LEDs above channel selector buttons indicate whether channels have been selected for receive or transmit and also flash when receive or transmit channels have activity. The FDAP supports multiple levels of security and can operate as a stand-alone unit or in conjunction with legacy flight deck audio control panels.
 

The Flight Deck Audio Panel (FDAP) provides flight crewmembers access to conference interphone networks, radio channels, guard channels, NAVAIDs, and selective interphone networks.

The panel features separate volume controls for the individual channels as well as a master volume control. LEDs above channel selector buttons indicate whether channels have been selected for receive or transmit and also flash when receive or transmit channels have activity. The FDAP supports multiple
levels of security and can operate as a stand-alone unit or in conjunction with legacy flight deck audio
control panels.
 

The Mission Audio Panel (MAP) provides access to internal and external communications channels while supporting multiple levels of security. The MAP is a binaural unit, which gives the user complete control and status of the communications assets. Controls allow the users to select radio and intercom channels for receive and transmit as well as set the volume, stereo balance or spatial location for each channel. The keypad allows one to control selective intercom, VOX, Hot Mic, channel security, recorder playback, and so on. The color LCD display shows the level of security, radio frequency, channel name, along with receive and transmit activity for each channel. The MAP has master volume controls for two users.
 

The Handset Audio Panel (HAP) provides
access to internal communications
channels. The HAP connects to a
handset with a wall hook to provide
the user audio interface. The keyboard
allows the user to call other crewmembers
on conference or selective intercom
channels.

The Mission Maintenance Audio Panel is an analog audio amplifier unit that provides access to the maintenance intercom channel as well as the emergency CALL net. 

 The Communications Switching Unit (CSU) provides the connections between the communications assets and each crewmember.  The CSU is a modular TEMPEST secure digital unit that is integrated into the communications suite to provide the necessary control and switching of all internal and external, clear and secure voice and data lines.

The CSU features multi-level security, non-blocking digital switching using TDM buses. The high speed TDM approach has high capacity and very low, deterministic latency, thus providing high quality of service and high quality audio.

The CSU interfaces with communications assets can include T1/E1 (PSTN), Gigabit Ethernet (wire or fiber optic), analog (four- wire or two-wire ) , ISDN and VoIP. The modular architecture of the CSU allows for the addition of interface cards for new interface standards as they develop, or addition of new protocols utilizing software changes to existing cards.

The CSU can operate as a stand-alone unit or with multiple CSUs. CSUs interface with each other via redundant high speed (OC3) serial data links.