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ADS-B FDL-DB Dual Band Series
Installation Manual
Document No. 88552 Rev A
7-4
FFS Copyright © 2020 All rights reserved.
7.1.4 Mode A/C Transponder, TC978 Controller
Figure 35: Mode A/C Transponder, TC978 Controller
When a separate transponder is present, the TC978 will not accept inputs and will instead mirror the
control inputs coming from the transponder or the display. If control input is lost from another device for
60 seconds, then the TC978 will take over the role as the primary controller.
Configuration Settings (Lcl:YES/VALID, PM:NO/INVALID):
ICAO Address.............. FF00
VFR Call Sign............. FDBGA
GPS Config................ Level C
NACv Mode................. Auto (from GPS)
Receiver Capability....... 1090, 978
Emit Category............. LIGHT AIRCRAFT
Squat Mode................ none
Groundspeed Threshold..... 30 knots
Vehicle Size.............. Length=8 meters, Width=6 meters
UAT Ant................... top, No DC Gnd Chk
GPS Ant Offset............ Long=2 meters, Lateral=Center
Mode A Rx................. enable
Disable Squawk Tx......... off
Max Targets............... max
Chelton CSA Enable........ disable
Traffic Vel Validation.... enable
Display Data Output....... traffic&fisb
XVR Mode.................. xvr
Serial In 1.............. Internal-GPS, 19200
Serial In 2.............. UNUSED, 9600
Serial Out 2.............. UNUSED, 9600
Serial In 3.............. TMAP, 38400
Serial Out 3.............. TMAP, 38400
Serial In 4.............. Alt-Encoder, 9600
Serial In 5.............. MAINT, 115200
Serial Out 5.............. Traffic-Alert, 115200
Serial In 6.............. UNUSED, 115200 (RS-232)
Serial Out 6.............. UNUSED, 115200 (RS-232)
ARINC In 1................ UNUSED, low
ARINC In 2................ UNUSED, low
ARINC Out 1............... UNUSED, low
NOTES:
1. ALL WIRES ARE 24 AWG MINIMUM UNLESS OTHERWISE NOTED AND MUST BE MIL-W-16878E/4 OR
EQUIVALENT.
2.
CONNECT TWISTED-PAIR SHIELDED WIRE GROUNDS TO SERIAL GROUND PINS OR AIRCRAFT GROUND
WITH AS SHORT OF A CONDUCTOR AS POSSIBLE. GROUND ONLY ONE END EXCEPT WHEN THE
SHIELD IS ACTING AS THE SERIAL COMMON GROUND.
3. REFER TO INDIVIDUAL EQUIPMENT INSTALLATION MANUAL FOR EXTERNAL EQUIPMENT
INTERCONNECTS.
4. FOR SINGLE ANTENNA INSTALLATIONS (CLASS A1S) INSTALL BOTTOM ANTENNA ONLY.
5. SYSTEM DESCRIPTION:
SQUAWK CODE AND IDENT ARE PROVIDED BY TRANSPONDER.
MODE CONTROL IS PROVIDED BY TC978.
FAULT ANNUNCIATION PROVIDED BY TC978.
TRAFFIC DISPLAY ON PERSONAL ELECTRONIC DEVICE.