COBHAM SAILOR 4300 - Page 30

Chapter 3: Service & maintenance
20 Troubleshooting
840B
840C
ADU PSU temperature
above warning level
ADU PSU temperature
above critical level
The system will automatically
decrease the transmit
performance on temperature
warnings.
On detection of critical
temperatures the system will
protect itself by powering off the
ADU. After a cool down period
(30 minutes) the system will
automatically restart.
840D
840E
ADU Antenna switch
temp. above warning
level
ADU Antenna switch
temp. above critical
level.
The system will automatically
decrease the transmit
performance on temperature
warnings.
On detection of critical
temperatures the system will
protect itself by powering off the
ADU. After a cool down period
(30 minutes) the system will
automatically restart.
8501 No communication to
Iridium modem
Restart the terminal (see below).
8502 Iridium modem critical
fault detected
Restart the terminal (see below).
8503 High power amplifier
control fault detected
Restart the terminal.
If persistent contact service
partner
BITE ID
(HEX)
System component
symptom
Remedy