This AS covers all types of electronic display systems, as qualified in "Purpose", both panel mounted (head down) and electro-optical (head up), monochromatic and color which are used in the cockpit by flight personnel. Three basic types of displays are covered as follows: Airborne Multipurpose Electronic Displays can include one or more of the following interconnected components. An example is shown in Figure 1. Other configurations are possible. Electronic display systems covered by this AS are multifunction and/or multipurpose displays, whose failure can lead to loss of critical displayed information. System design or installation must recognize this characteristic and include appropriate redundancy criteria where applicable.