User guide

77
Garmin SL-30
The AF-3000 will send/receive data from a SL30 on EFIS Serial Port #3. The EFIS can get VOR/LOC/GS
data from the SL30 and can set the OBS setting on the SL30. If the EFIS is also connected to a Garmin
396/496 it will pass through any radio frequency tuning commands to the SL30.
EFIS Main Cable SL30 37 Pin Connector
Pin 4 TXD --------------- Pin 4 RX
Pin 5 RXD --------------- Pin 5 TX
Pin 21 GND --------------- Pin 3 GND
The Indicator Head Type setting should be set to NONE in the SL30. This will enable the OBS to be set
from the SL30 buttons and from the EFIS.
Garmin 396/496
1. The 396/496 can send RS-232 data in NMEA 4800 Baud format or NMEA
& VHF 9600 Baud. If you also have a SL30/SL40 connected you should
use the NMEA & VHF 9600 Baud setting in the GPS. This will enable you
to set the standby radio frequency on the SL30 from the GPS. Make sure
that you use the same baud rate setting in the GPS and EFIS Admin
setup.
2.
The NMEA output rate on the 396/496 must be set to normal.
To access the Advanced NMEA Output Setup:
a. Press MENU twice to open the Main Menu.
b. Use the ROCKER to select Setup from the vertical tab list.
c. Select Interface from the row of tabs along the top.
d. Highlight the field below Serial Data Format. Press ENTER
e. Select NMEA In/NMEA Out. Press ENTER
f. Press MENU to open the options menu. Select Advanced NMEA
Setup and press ENTER.
Garmin GTX 327 / GTX 330 Transponder
The AF-3000 can act as the altitude encoder and send the current pressure altitude on EFIS Serial Port #2.
The GTX 327 / GTX 330 should be configured for ICARUS altitude format. The EFIS can also be configured
to receive traffic data from the GTX 330 for the moving map. The GTX 330 should be set for Serial 1
ICARUS Input and REMOTE/TIS output.
EFIS Serial Port EFIS Main Cable GTX 327 GTX 330
Serial Port #2 TXD Pin 13 Pin 19 Pin 22
Serial Port #2 RXD Pin 25 none Pin 23
NOTE: The only time an altimeter and your transponder altitude will agree is when you have the baro set at 29.92. All transponders
require pressure altitude referenced to standard pressure (29.92 in. Hg). The computers at the air traffic control center automatically
adjust your altitude for the pressure offset. Why is this done? If it was not done this way the altitude that all the planes were reporting
would be based on whatever setting a pilot had set and you would have a possibility for human error.
Chelton or OP EFIS
The AF-3400/3500/4500 can send Airdata and Engine Data to a Chelton or OP EFIS from serial Port #3 or
Port #4.
EFIS Serial Port Pin Chelton OP
Serial Port #3 TXD EFIS Main Cable Pin 4 Pin Pin