Nmea Out 1 Through N* - Nmea 0183 Output Data Control - Leica MX420 Operator's Manual

Configuration
Operator's Manual
Causes an alarm when your position is outside the cross-track
error limit defined inXTE
Limit (above) or when you change course
to a new leg in your route (manually or automatically passing a
waypoint) when Yes is selected.
It
also causes the NMEA data
records of AP A, APB, and XTE to change their reported status of
Valid to Invalid when you reach the waypoint of the current leg.
This tells the autopilot not to use the data from the receiver. When
the alarm is canceled, which requires your depression of the Can-
cel Alarm softkey (displayed during the alarm condition), these
data fields will revert to valid data and the autopilot will accept the
receiver data again. This is provided as a safetyfeature so that the
boat does not turn toward a new direction without your knowing
ofthe impending change. To disable the alarm, select No (the de-
fault condition) with the Change softkey.
NMEA Out 1 through n* - NMEA 0183 Output Data Control
These screens set the specific NMEA 0183 output record parameters
as well as the port control. The default setting isNo. When this selec-
tion is changed to Yes, you can turn on individual data records. Refer
to the installation manual of the device you interfaced with the re-
ceiver to determine which output records are required. Refer to the
Installation
&
Service Manual for receiver hardware interface infor-
mation.
*
The number ofuser NMEA ports available depends on the model of
the CDU unit:
MX42012 Model - has two user NMEA ports available and one
proprietary port (NMEA3) dedicated to the MX421 or MX42lB
smart antenna.
MX420181AIS Model - has eight user NMEA ports available and
two antenna ports (NMEA3 & 4) dedicated to the MX421 or
MX421B smart antenna.
Note:
Pre plan your interface requirements to ensure all of your
interfacing needs are met. When two receivers are inter-
faced in a dual-head configuration, Port 7 is reserved for this
interface. All NMEA Ports are RS-422electrically. Only Port 2
can be configured as either RS-422
or
RS-232 and is the only
port which should be connected to a computer
or
other "single
ended" interface.
The default condition of each port is
Off.
When you want to output
data on a NMEA port, scroll down the Item menu to the appropriate
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