600840-000032 Stratus ESG Installation Instructions
Rev. 1.5
Last Revised: September 22, 2016
Page 31 of 47
parallel altitude encoder is properly connected. If a serial altitude encoder is connected, or there
is no altitude encoder connected, the altitude input will display all 0’s.
External inputs diagnostic
The external digital inputs diagnostic screen shows if the IDENT and standby modes are active
or inactive. It also shows if the squat switch is indicating that the aircraft is ground, airborne, or
unknown. You can use this screen to verify that the squat switch settings are properly
configured.
Analog inputs diagnostic
The analog inputs diagnostic screen shows the current reading of the lighting bus and ambient
light sensor to the nearest percentage, and the current reading of the internal temperature
sensor to the nearest degree Celsius.
GPS receive diagnostic
The GPS receive diagnostic screen shows the current reading of the GPS latitude, GPS
longitude, and Navigation Integrity Category (NIC).
GPS CN0 diagnostic
The GPS CN0 diagnostic screen shows the current value of GPS CN0 for all 12 channels.
Software versions diagnostic
The software versions diagnostic screen shows the DSC part number, version number, and
flash checksum.
Complex hardware versions diagnostic
The complex hardware versions diagnostic screen shows the FPGA part number, version
number, and flash checksum.
BIT diagnostic
The BIT diagnostic screen displays any Built In Test failure codes. If the screen displays all
zeros, no BIT failure has been detected. Otherwise, a “1” will display. Each number corresponds
with a specific failure, depending on its position in the string of numbers on the screen—failure
position 1 being the leftmost space, and failure position 19 being the rightmost space.
Reference the table below to determine which BIT has failed. Once all BIT failures have been
resolved, press
ENT
to clear all codes.
Failure Position
BIT Failure
Corrective Action
1
Transmitter
Contact Appareo
2
Display
Contact Appareo
3
GPS Failure
Contact Appareo
