Chapter 2: Operation
42 List of alarms
List of alarms
Alarm Consequence Reason Remedy
Connection
lost
AIS list is empty,
the padlock for
password
protection cannot
be opened.
Someone has logged into
the TT-6282A AIS Service
Interface.
TRX has no power
TRX-MKD connection cable
is defect
TRX lost Ethernet
connection
TRX or MKD use wrong
connection settings.
After logout
from the TT-
6282A AIS
Service Interface
resumes normal
operation. Allow
up to 40 s to
reboot.
Tx
malfunction
(ID 001)
The SAILOR 6282
AIS Transponder
stops
transmission.
The AIS is not able to
transmit for technical
reasons (VSWR exceeds
allowed ratio, see alarm ID
002)
Missing or invalid MMSI
The integrity of the VDL is
degraded by incorrect
transmitter behaviour for
instance in case of the Tx
shutdown procedure has
been activated.
Check the VHF
antenna, plugs,
and cable to the
AIS Transponder.
Check correct
programming of
the MMSI.
Antenna
VSWR
exceeds limit
(ID 002)
The SAILOR 6282
AIS Transponder
continues
operation.
For every transmission, the
VSWR is checked. If it
exceeds the warning
threshold, this alarm is
generated. The alarm is
cleared by the AIS when the
VSWR is measured to be
below the threshold again.
Check the VHF
antenna, plugs,
and cable to the
AIS Transponder.
Table 9: AIS Alarms
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