User's Manual

Table Of Contents
Sensor input
98-137573-A Chapter 4: Interface description 4-5
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Interface description
4.2.4 Heading (HDT)
The SAILOR 6282 AIS Transponder can process heading information from heading sensors
that provide an IEC 61162 output.
If THS (True Heading and Status) and HDT are available, THS is preferred.
4.2.5 Rate of Turn (ROT)
If a Rate of Turn (ROT) sensor is available and provides an IEC 61162 output, the sensor
must be connected to the SAILOR 6282 AIS Transponder.
If the ROT information is not available from a Rate of Turn sensor it may optionally be
delivered from another source, e.g. a gyrocompass or other external sources giving ROT or
heading.
The SAILOR 6282 AIS Transponder automatically selects the ROT source with the highest
priority. The priority is defined in IEC 61993-2. It is decided by the Talker ID, where TI
(Turn Indicator) has a higher priority than HE (Heading sensor; lower priority). TI and HE are
the talker IDs of these devices.
4.2.6 Log (VBW)
The Log (VBW, Dual ground/water speed) refers to the speed log sensor. It has nothing to
do with the malfunction log and system log. The Log (VBW) is about water-referenced and
ground-referenced speed data.
Priority: Only one sensor is allowed to be connected to the SAILOR 6282 AIS Transponder.
You can also use Talker ID filtering to ensure that VBW only at one port can enter the
SAILOR 6282 AIS Transponder.