User's Manual

SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ARINC 781-200 SDU and SCM
23-15-30 4-10
DATE TBD
C. Thermal Status
As shown in Figure 4-4, the SATCOM OVERTEMP menu repor
ts the thermal status of
system components.
To check the thermal status, on the SATCOM
BITE menu, press the button next to
OVERTEMP.
IRS - SEC No labels of correct
sp
eed on bus.
The expected Golden
label (310) is not
present.
The IRS2Type secure
ORT parameter
specifies whether it is
connected or not
connected.
The expected Golden
la
bel is present and the
bus is active at the
correct speed.
GNSS No labels of correct
sp
eed on bus.
The expected Golden
label (110) is not
present.
The bus is not
installed.
The expected Golden
label is present and the
bus is active at the
correct speed.
AES ID No labels of correct
sp
eed on bus.
The expected Golden
label (275) is not
present.
The bus is not
installed.
The expected Golden
label is present and the
bus is active at the
correct speed.
CMU No labels of correct
sp
eed on bus.
The expected Golden
label (270) is not
present.
The bus is not
installed.
The expected Golden
label is present and the
bus is active at the
correct speed.
CTU Label 351 bit 27 is set
to
inactive.
N/A The bus is not
installed.
Label 351 bit 27 is set
to OK.
Table 4-10 Bus Status Indicators
Bus
St
atus
INACTIVE NO DATA NONE OK