System Maintenance Manual

G1000/GFC700 System Maintenance Manual – C90A/C90GT/C90GTi King Air Page 3-11
190-00682-01 Revision F
3.7.3 Data Transmission Indicators
Several configuration screens utilize an indicator light system to show discrete (ON/OFF) data and/or
hardware component status. A difference in the presentation of the data indicator exists between the two
approved versions of C90A G1000 system software. Table 3-1 presents the data indicator differences
between the two versions of software.
Table 3-1. Data Indicator Symbols
This manual will depict the data indicator symbols used by the C90A G1000 System Software PN 006-
B0636-03, Version 0636.03. The following applies to all such status indicators:
• Green Checkmark: Expected data is successfully received and is ON or VALID. A green check
could also indicate that the parameter/component is working correctly.
• Red X: Expected data is not received. A red X could also indicate that a parameter/component is
INVALID or FAIL.
• Amber question mark (?): Data is unknown.
• White N/A: Expected data is OFF, or no data is expected.
Figure 3-14. Data Transmission Indicators
G1000 System Software Data Indicator Symbol Differences
006-B0636-01, v 0636.01 006-B0636-02, v 0636.02
Indicator Meaning Indicator Meaning
Valid
Valid
Invalid/Fail
Invalid/Fail
Unknown
Unknown
- - OFF
- - TRUE
- - FALSE
- - HIGH
- - LOW