CORTROL CONTROL 1I □□ R FIGURE 102.2 Architecture for AIMSbaseline configuration. Courtesy of Honeywell, Inc. Data buses As noted earlier, data buses are the key to the emerging integrated avionics architectures. Table 102. 1 summarizes the major features of the most used system buses. MIL-STD-1553 and ARINC 429 were the first data buses to be used for general aircraft data communications. These are used today widely in military and civil avionics, respectively, and have demonstrated the significant potential of data buses. The others listed in the table build on their success Displays All modern avionics systems use electronic displays, CRTs or flat-panel LCDs that offer exceptional flexibility in display format and significantly higher ity than electromechanical displays. Because of the ery bright ambient sunlight at flight altitudes the principal challenge for an electronic display is adequate brightness CRTs achieve the required brightness through the use of a shadow mask design coupled with narrow bandpass optical filters. Flat-panel LCDs also use narrow bandpass optical filters and a bright backlight to achieve the necessary brightness. e 2000 by CRC Press LLC© 2000 by CRC Press LLC Data Buses As noted earlier, data buses are the key to the emerging integrated avionics architectures. Table 102.1 summarizes the major features of the most commonly used system buses. MIL-STD-1553 and ARINC 429 were the first data buses to be used for general aircraft data communications. These are used today widely in military and civil avionics, respectively, and have demonstrated the significant potential of data buses. The others listed in the table build on their success. Displays All modern avionics systems use electronic displays, either CRTs or flat-panel LCDs that offer exceptional flexibility in display format and significantly higher reliability than electromechanical displays. Because of the very bright ambient sunlight at flight altitudes the principal challenge for an electronic display is adequate brightness. CRTs achieve the required brightness through the use of a shadow mask design coupled with narrow bandpass optical filters. Flat-panel LCDs also use narrow bandpass optical filters and a bright backlight to achieve the necessary brightness. FIGURE 102.2 Architecture for AIMSbaseline configuration. (Courtesy of Honeywell, Inc.)