IS15 General Manual
116 20220760L
Send
Displays ‘-Tx’ if the particular instrument is sending the
particular message on Roblink. Only the instrument receiving
data from NMEA and sending it to the Roblink displays ‘-Tx’.
Actions to Roblink test results:
1. Zero (0) reading means ‘no message available’.
2. If the numbers are continuously flickering or counting down,
perform a Communication Reset on the system.
3. Make sure the recommended cable length or number of
instruments in the system are not exceeded. See Figure 6-6.
4. Check all NMEA connections.
5. Check the output rate of the NMEA ‘talkers’ connected to
IS15. The rate should not be slower than 0.7 Hz.
Note ! A Personal Computer (PC) does not comply with the NMEA
hardware specifications. Always use a proper interface between
the PC and the IS15 NMEA ports to avoid possible anomalies in
the IS15 performance.
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