System Data Paths - Garmin CIRRUS PERSPECTIVE SR20 Line Maintenance Manual

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In addition to failure messages, the data path can be checked by observing the indication boxes
on the GDU and GIA Configuration Pages. The status of the channel is indicated by the following
colors:
(Pre GDU 9.11 Software):
Red = data path has failed
•
Black = data path status is unknown
•
Green = data path is good
•
(Post GDU 9.11 Software):
Red X = data path has failed
•
Green check mark = data path is good
•
N/A = data path status is not applicable
•
? = data path is unknown
•
5.4.1 System Data Paths
In addition to troubleshooting via the GDU and GIA Configuration Pages, the System Data Path
Configuration Page displays port status and information. The System Data Paths Configuration
page (Figures 5‐4 through 5‐7) displays the following data when the A429, CAN, RS‐232, or RS‐
485 data path softkey is selected:
A table containing one row for each configured LRU with the following information per row,
ordered from left to right:
• A text field indicating the LRU name in the column
• A text field indicating the channel name
• A status indicator showing:
o An N/A indication if the monitor is on and data path status is not applicable
o A positive indication if the monitor is on and data path status is "OK"
o A negative indication if the monitor is on and data path status is "FAIL"
o An unknown indication if the monitor is off or the monitor is "ON" and data path
status is "UNKNOWN"
• A text field indicating the port monitor status:
o "ON" if the monitor is turned on
o "OFF" if the monitor is turned off
Cirrus Perspective™ Line Maintenance Manual
190-00920-00
Page 5-11
Rev. E