Sperry Marine 5016-CA, Operation, Installaion And Service Manual

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056376/A Analogue Compass Repeaters
3-2 Error Blink Codes
Heading Timeout with flashing Source Indicator
In case of a heading timeout, one or all of the source indicators may
flash in synchronously with the error indicator. This provides additional
information regarding the cause of the timeout.
• If one of the source indicator flashes, no heading data is received
from the currently active source. Possible causes:
– The active source selection is read from the proprietary $PPLAN
or $PPNSD sentences but no valid heading is received from the
selected source.
– The active source has marked its heading data invalid or has
stopped sending data and no valid heading data is received from
another source.
• If all source indicators flash simultaneously, valid datagrams are rec-
ognized at the input but the currently active source cannot be deter-
mined. Possible causes:
– NMEA sentences are received but these do not contain any of the
recognized heading sentences.
– NMEA heading sentences are recognized but are excluded from
the range of accepted sentences in the repeater’s configuration.