Immarsat FB500 - Page 77

10-7
Alarm 2) (BDE Alarm bit display)
BDE Contents/Cause of alarm
Normal/
Abnormal
determine
value
Assumed breakdown unit Countermeasure
Compound judgment
etc. (If necessary. )
1
ADE communication
error
Communication error
between BDE-ADE is
occurred.
0;NORM
1;ALM
2
Core Module
communication error
Core Module communication
error is occurred
0;NORM
1;ALM
3
Handset
communication
error
Communication error
between BDE-Handset is
occurred
0;NORM
1;ALM
・ Poor connection of
Handset cable
・ Handset
・ BDE
・ Confirm the cable
connection
・ Replace Handset
・ Replace Board
4
Cable Calibration
error
ADE-FTU cable offset is
failed when JUE-500 is
activated.
0;NORM
1;ALM
・ Poor connection of
ADE-BDE cable
・ ADE-BDE cable loss is
abnormally large.
・ ADU
・ BDE
・ Confirm cable
connection
・ Replace Cable
・ Replace Board
5 Core Module reset
0;NORM
1;ALM
6
Core Module
communication error
Core Module does not
replay at AT level
0;NORM
1;ALM