Unicont SPb Ltd
Technical Documentation DAC-109
Page
16
If the parameter of “Backup Channel” in the position “On” then the switching over to the reserve
channel and back is possible as in automatic as in manual mode.
Available values of this parameter are: On, Off
Alarm Sound
Selection of necessity to switch on the audible warning when the input NMEA signal at the main
channel is missing.
Available values of this parameter are: On, Off
Alarm Period
Selection of the period after which the audible warning will be switched on, and the converter will
switched over to the reserve channel when data at the main channel is missing.
Available values of this parameter are: 2, 3, 4, 5, 6, 7, 8, 9, 10 sec.
6.3
Alarm System
Several types of warning are foreseen in the DAC-109: absence of data at the main channel, absence
of data at the reserve channel, absence of data at the main and reserve channel, absence of connection
to the synchro-receiver, the initial position of connected analogue repeaters are not entered (see
par.6.4).
Warning about Missing of Data at the Main Channel
If the converter does not accept data about the course through the main channel during the time, set by
the setting «Alarm Period» (see par.6.2), the audible warning is switched on, and if the setting
«Backup Channel» is set in «On», the converter is switched over to the reserve channel for receiving
data NMEA data.
Visually, the current state of warning is shown at the converter display in the standby mode as
follows:
If NMEA course data is also missing at the reserve channel, the converter display switches over to the
following mode:
