AIS-700 User Manual
San Jose Technology, Inc.
｜
11F., No.2, Sec. 4, Jhongyang Rd., Tucheng City, Taipei County 236, Taiwan
(R.O.C.)
｜
Tel: 886-2-22694456
｜
Fax: 886-2-22694451
｜
5
2.3 LED Indicators
(Front side: from left to right)
ON
This is a green LED which indicates, when lit, that the power has been connected
correctly to the transponder and the power switch has been turned on.
Status
This is a green LED which indicates, when lit, that the transponder hardware has been
configured well. (The setup is correct: the operating software is present and running;
and the CPU has activated).
Timeout
This is a yellow LED which indicates, when lit, the transmitter is prevented from
transmitting.
If the unit has not transmitted a position report during the last two reporting intervals
(nominal reporting interval can not be maintained for operational reason, e.g. message
23 quiet period, high VDL load).
The reasons may be that the transponder is unable to transmit an AIS message due to
the channel being already occupied; for instance, by transmissions from other AIS
transponders.
Error
This is a red LED which indicates, when lit, that one of the following status conditions is
possible:
1. Transmitter lockout timer (1 second maximum) has operated.
2. GPS is not able to fix the position after 30 minutes.
3. Power Supply is out of range.
4. Background noise level is above the threshold level (-77dBm).
5.
When the system initiation of the AIS-700 fails.
TX Off
This is a blue LED which indicates, when lit, that the remote TX Off switch has been
operated to manually stop the AIS-700 from transmitting data.
RX
This is a green LED which indicates, when flashed, that the AIS-700 is receiving data
from other AIS transponders and is outputting this data as VDM NMEA sentences on the
output data ports.
If the green LED that constantly lit without flashing, it indicates that the unit has not
been programmed with its personalized data. It will still send received data to the
output port, but will not transmit any data.
TX
This is a red LED which indicates, when flashed once, that the AIS-700 is transmitting
its own AIS data.
Summary of Contents for AIS-700
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