Appendix D List Of Alarm Messages - Nera Saturn BM Marine Operator's Manual

Appendix D
Ref Display
No. Message
0 RX LOCK
FAILURE
1 ANTENNA LINK
FAILURE
2 TERMINAL ID
CRC FAILURE
3 TX DETECTOR
FAILURE
4 TX MONITOR
FAILURE
5 ACU 28 VOLT
FAILURE
6 ACU EPROM
FAILURE
7 ACU RAM
FAILURE
8 DSP COMM.
FAILURE
9 ALONE LES
PRESELECTED
10 DISTRESS LES
PRESELECTED
11 STAND ALONE
LES USED
12 CALL REPEAT
TIME LONG
13 EEPROM CRC
FAILURE
Saturn Bm – Chapter 6. Appendices
List of Alarm Messages
Appendix D – List of Alarm Messages
Comments
Receiver synthesizer out of lock
No communication with antenna.
ID PROM in Main Control Unit
(MCU) defective.
Illegal initial transmitter output
level detected in Antenna Control check FUNC. 33 "RX SIGNAL":
Unit (ACU).
Illegal initial transmitter input
level detected in Antenna Control
Unit (ACU).
Antenna Control Unit (ACU)
input power too low.
Antenna Control Unit (ACU)
EPROM defective.
Antenna Control Unit (ACU)
RAM defective.
Digital Signal Processor - CPU
communication failure.
Default Standalone LES
preselected.
Default Distress LES preselected. Information only. No alarm.
Standalone LES operative.
Due to heavy traffic. Minimum
time between call requests can
be up to 17 minutes.
EEPROM in Main Control Unit
(MCU) erased or defective, or
new software loaded.
Action
Replace MCB board.
If also ANTENNA INIT FAILURE,
check FUNC. 33 "RX SIGNAL":
-if "OFF", check antenna cable.
-if "ON", replace antenna TX unit.
Replace antenna ACU.
Replace MCB board.
Replace ID PROM.
If also TX MONITOR FAILURE,
if "OFF", replace antenna RX unit.
Replace antenna TX unit.
Replace antenna TX unit.
Check 28 voltage in both ends
of cable: if missing at MCU end
with cable disconnected, replace
MCU power.
Replace antenna ACU PROM.
Replace antenna ACU.
Replace antenna ACU.
Replace DSP software.
Replace MCB board.
Information only. No alarm.
Information only. No alarm.
The time between two call
attempts too short. No alarm.
If the last record in the "INFO
LOG" (FUNC.31), then
information only. No alarm.
Replace ID PROM.
D-1