DIGITAL YACHT AIT2000, Installation & Operation Manual

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Page 27
AIT2000 Installation & Operation Manual
VERSION 1.01
Green indicator only

The AIS transponder is powered up, has a position fix and has transmitted at least
one vessel information report. Everything is working correctly.
Green indicator flashing

Indicates possible Boot Loader (software corrupted) or PA Transmitter fault –
contact Digital Yacht for advice on this condition.
Red indicator only

During normal operation the AIS transponder has detected a system error.

Usually indicates low supply voltage but check cause of the error in proAIS2.
Red indicator flashing

During normal operation the AIS transponder has detected a high VSWR reading,
which usually indicates a VHF antenna or Splitter (if fitted) problem.
Green and Blue indicators

The “Silent” switch has just been operated and transmitting has stopped.

Within 3 minutes the LED combination will change to Yellow and Blue.
Yellow and Blue indicators

“Silent mode” has been activated using the optional silent mode switch or via
proAIS2 and this combination of indicators is illuminated to show that the trans-
mitter is disabled.
Red and Blue indicators

This indicates that a system error has occurred whilst the unit is in “Silent mode”
unless the cause of the error is removed, the unit will not be able to start trans-
mitting again when “Silent mode” is exited.
Yellow indicator only

The AIS radio channels are exceptionally busy so there is currently no available
timeslot for transmission.

The unit has just exited silent mode and this yellow indicator will illuminate until
the first AIS message has been sent.

The AIS transponder has been commanded by the local authority (via an AIS base
station) to cease transmissions.
Yellow indicator flashing

The unit has just turned on and is obtaining a position fix prior to transmitting its
first vessel information report (typically takes 3-4 minutes).

Position fix has been lost. The AIS transponder will attempt to regain position fix
for 30 minutes before entering an error state.
Red and Yellow indicators

This is a new AIT2000 unit that has not yet been properly configured with an
MMSI number.

The unit is only getting power via the USB cable.
Table 3