Electronic Flight Instrument System (EFIS)  電子飛行儀表系統(tǒng)
The EFIS contains four large Liquid Crystal Displays (LCD) AFDs. The two outboard AFDs are composite color displays strapped to function as PFDs. The PFD replaces a conventional Attitude Direction Indicator (ADI), Horizontal Situation Indicator (HSI), Altitude Indicator (ALI), Airspeed Indicator (ASI), Vertical Speed Indicator (VSI) and Mach Speed Indicator (MSI). Each PFD displays aircraft attitude, flight director commands, Flight Guidance System (FGS) annunciations, heading (compass), course (navigation), bearing, vertical speed, airspeed, baro-corrected altitude, radio altitude, preselect altitude, minimum descent/reporting altitude, decision height and temperature information and FMS map display. EIS information can be displayed at the top of each PFD.

The two inboard AFDs are composite color displays that show radar/navigation data, checklist pages, EIS information, system diagnostic pages, a plan map pictorial, FMS flight plan display with enhanced mapping information and several pages of Flight Management System (FMS) data.

When on emergency batteries, the Radio Tuning Unit (RTU) on the main instrument panel provides essential EFIS displays.

Engine Indication System (EIS) 發(fā)動機指示系統(tǒng)
The Engine Indication System digitizes aircraft sensor data via two Data Concentrator Units (DCUs) and two Engine Data Concentrators (EDCs) and converts it for display on the PFDs, MFDs and, when on emergency battery power, on an RTU. It also provides discrete outputs to drive annunciators and aural warnings. The engine display format consists of a full-time display of N1, ITT, N2, Fuel Flow, Oil Pressure, and Oil Temperature, normally displayed on the left MFD.

Air Data System 大氣數(shù)據(jù)系統(tǒng)
The ADS-850 is a dual system that senses and processes data derived from the air mass around the aircraft. Both the pilot and copilot systems contain an Air Data Computer ADC-850D, a Display Control Panel (DCP-3000) and a Signal Interface Adapter (SIA). The ADC-850D is remote-mounted and connects to an externally mounted pitot static port and temperature sensor. The ADC 850D provides air data parameters to the PFD, Attitude Heading Computer (AHC) and the IAPS. An Air Data Module (ADM) mounts on top of the ADC 850D. This memory module configures the computer specifically for the aircraft. The central Heading Speed Altitude (HSA) Panel and each DCP provide controls to set the various airspeed references, a vertical speed reference, a preselected altitude, and a barometric pressure correction. Drivers pass this data to the on-side ADC.

The SIA converts the angle-of-attack signal from the stall warning system into ARINC 429 format. This data is passed to the PFDs, which use the information to position the low speed cues.