Section 2 System Overview
2-36
IDU-450 EFIS Software Version 8.0H (Rotorcraft)
1
st
Ed Nov 2018
2.5.5 Advisory
Alerts
Figure 2-13: Advisory Alerts
Table 2-10: Advisory Alert Elements
Type Alert
Location
Appearance
Audio Alert
PFD lower left
corner of
transmit
enabled IDU
While condition
persists
Single advisory
chime played
at 80% volume
Table 2-11: Advisory Alerts
Visual Alert
Alert Tone Condition
** No time delay
[1]
Only active in dual-sensor installation with neither sensor in failure condition
[2]
Only active in dual-system (pilot and co-pilot)
[3]
Only active when single-pilot mode discrete not asserted
Chime
Indicates ADC# not at full accuracy
during warm-up. ** ADC1 INIT, ADC2
INIT, and ADC1/2 INIT
[1]
Chime
Indicates numbered AHRS in DG
mode. **
[1]
Chime
Only active with EFIS control of an
audio controller and call notice is
received from the controller.
Chime
Indicates a dual redundant power
supply within the designated IDU
(side and CPU #) is not functioning
correctly. Only active on the ground.
1-minute time delay.
Chime
Flight path marker inhibit function
activated through use of momentary
discrete input. **