Aspen Avionics Evolution EFD 1000 MFD - 6.11. EFD1000;500 Intercommunications Failure

CHAPTER 6 EXPANDED EMERGENCY AND ABNORMAL PROCEDURES
EFD1000/500 MFD Pilot’s Guide
Page 6-12 091-00006-001 REV B
EFD1000/500 MFD Pilot’s Guide
Page 6-13091-00006-001 REV B
6.11. EFD1000/500 Intercommunications Failure
In the event of a “CROSS LINK FAILURE” message, verify that barometric altimeter setting
information is correctly transferred between the displays. On the EFD1000 MFD, the
barometric altimeter setting can only be set from the MFD REV mode.
Intercommunications Failure
1. BARO SETTING .........................................................VERIFY
If EFD1000 Baro Setting must be set
2. EFD1000 MFD REV Button ................................PRESS TO DISPLAY PFD
3. BARO SETTING .........................................................SET
An intercommunications link exists between the EFD1000 PFD, EFD1000 MFD, and
EFD500 MFD to share various information, including barometric setting, heading,
airspeed and altitude information. The EFD1000 PFD and EFD1000 MFD both receive
and transmit data to each other, and each also transmits data to the EFD500 MFD. The
EFD500 MFD only receives data, but does so from each installed EFD1000 display.
In the event of an intercommunication failure between the EFD1000 PFD, EFD1000
MFD, or EFD500 MFD, a CROSS LINK FAILURE annunciation will be presented in the
aected PFD/MFD’s data bar. When this occurs, the altimeter’s barometric pressure
setting may not be communicated between EFDs. It will be necessary to conrm if the
baro setting information is being transferred. If it is not, the pilot should manually adjust
the BARO setting on the aected display. For the EFD1000 MFD, this is accomplished in
the PFD Reversion Mode.
In a three display conguration it is possible for the EFD500 MFD to display this
message, but still maintain synchronization. This indicates that only one of the
intercommunications buses to the EFD500 has failed.
CAUTION
Relative terrain is based on the barometric altitude
from the EFD1000 displays. BARO setting may not
be shared between the EFD1000 displays during this
Cross Link Failure condition. It is necessary to set BARO
individually on both EFD1000 displays to prevent the
display of erroneous relative terrain.