Garmin GNC 255 Installation Manual - page 57
190-01182-02
GTR 225/GNC 255 TSO Installation Manual
Rev. B
Page 6-3
6.4.1 SYS Configuration
6.4.1.1 Serial Port
The Serial Port page (Figure 6-2) allows the installer to configure the I/O mode for the RS-232 port. See
Table 6-1 for the selections that are available:
Figure 6-2. Serial Port Page
Table 6-1. Serial Port Selections
6.4.1.2 DST Display
The DST Display page (Figure 6-3) allows the installer to configure source priority for the display of
distance, speed, time (DST) information, if both GPS and DME systems are providing data to the GNC.
The GNC can display DST data from a DME or GPS device. Select “GPS, DME” to give priority to DST
data from a connected GPS receiver or “DME, GPS” to give priority to DST data from a connected DME
receiver.
Figure 6-3. DST Display Page
Selection
Description
NONE
No unit(s) connected to input/output of this channel.
AVN IN/MAPCOM
Serial data transfer with the GTN 6XX/7XX and GNS 400W/500W series.
NMEA
Serial data transfer with G500/G600, GPSMap, Aera Series, XL Series, or
GX Series.