ICS provides internal crew communications and includes how many MAPs and PA speakers?

• A. 11 or 12 MAPs and 18 PA speakers
• B. 5 MAPs and 10 PA speakers
• C. 2 MAPs and 6 PA speakers
• D. 20 MAPs and 25 PA speakers

Answer: (A)

ICS internal crew communications are built to reach every critical crew station and the spaces where they operate, using MAPs for individual or grouped audio control and PA speakers to broadcast messages across zones. The typical setup provides about 11 to 12 MAPs so each main crew position has access to a control point, and roughly 18 PA speakers to ensure clear announcements throughout the operation areas. This combination strikes a balance between direct, private or targeted communications and broad public addressing; too few MAPs or speakers would leave some stations or zones without access, while too many would be unnecessary.