Reversionary Controllers And Dimming Panel; System Reversionary Panel; Mfd Knob; Adc Button - Honeywell PRIMUS 1000 Pilot's Manual

REVERSIONARY CONTROLLERS AND DIMMING
PANEL

System Reversionary Panel

If an attitude and heading reference system (AHRS) or micro air data
computer (MADC) fails, the system can be reconfigured to display the
remaining good sensor on both sides of the cockpit. The remaining
good sensor is selected using the AHRS or air data computer (ADC)
switches on the reversionary controller shown in figure 3--3. A failure of
a PFD unit is controlled by using the on--side display reversionary
panel. Both are described below.
NORM
PFD
MFD
MFD Knob -- This knob selects the on--side MFD display between
D
PFD, NORM (normal), or EICAS.
NOTES: 1. When the selection is PFD or EICAS, the normal
2. When the SG reversionary switch is selected
ADC Button -- This button selects between NORM, or cross--side
D
MADC to supply the on--side PFD/MFD.
NOTES: 1. If reversionary ADC is selected, the current
2. It is possible for both pilots to select ADC
A28--1146--112--00
PRIMUSr1000 Integrated Avionics System
EICAS
ADC
System Reversionary Panel
Figure 3--3
display unit for the PFD or EICAS is blanked.
cross--side, the MFD switch operates normally.
However, under this condition, the selection displays
the cross--side PFD or cross--side SG supplied
EICAS on the MFD display tube.
airspeed modes are dropped, but they can be
re--engaged.
reversionary. In that case, each pilot is receiving air
data information from the cross--side MADC.
SG
AHRS
Electronic Display System (EDS)
AD--50892--R1@
3-7