Operation
Page 36
The meaning of each LED indicator is shown in the table below. Figure 19
shows the LED indicator positions on the AIS transceiver.
Table 3 LED indicator functions
LED
indicator
Function
Green LED indicator
Indicates that the AIS transceiver is configured and powered up.
Red LED indicator
Indicates that the AIS transceiver has detected a system error.
The likely causes of this are detailed in the troubleshooting guide
in Section . Alarms displayed in the Diagnostic tab of proAIS2 will
also assist with troubleshooting.
Blue LED indicator
Indicates that silent mode is enabled. Silent mode is a feature of
the B900 Series that ceases the transmissions from your own
vessel, whilst the reception of other vessel position reports
continue.
You can activate this using the configuration tools or by
activating the toggle switch as detailed in Section 4.2.
Amber LED indicator
Indicates that the AIS transceiver is not transmitting. This can be
for a number of reasons:
● The AIS radio channels are exceptionally busy so there
are currently no available slots for transmission.
● The unit has been in silent mode and after deactivating
silent mode this amber LED indicator will illuminate until
the first AIS message has been sent
● The AIS transceiver has been commanded by the local
authority (via an AIS base station) to cease
transmissions.
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