ACP panel

ACP’s or Audio control panels are located in three places. Two ACP’s (CPT, F/O) are on the center pedestal left and right of throttles and the third one (3rd occupant) is on the right side of overhead. ACP is used for selecting transmission and reception mode of all radio communication and navigation audio chanels, interphone, call and passanger address system.

Panel consist of transmission keys,  reception knobs (select reception channel and adjust volume), INT/RAD switch, ON voice key, SELCAL/CALL RESET key and Passanger address key.


You can properly interface ACP using ARINC bus with ConceptCockpit boards. Christopher made it 100% interfaced with JeeHell software.

If your ACP panel is inoperative or you just want to choose “Stone Age” method of bypassing internal electronics below you can find ACP’s panel inner rail pin-out.  You can read more about this method in post Interfacing Audio control panel.


I am not immune to mistakes so there could be some errors and typos on those diagrams (if you see any mistake or typo please let me know)! Therefore use them with a measure of common sense and don’t forget you are using pin-out diagrams at your own risk! In no event shall I be liable to any user or third party for any damages whatsoever resulting from the use or inability to use this website or the material and content provided on this site. Please don’t use diagrams commercially and publicate or distribute them without permission.