ADS-B FDL-978 Series and
Lite Series Installation Manual
Document No. 87343 Rev G
12-14
FFS Copyright © 2016 All rights reserved.
FDL-978-TXL Transmitter
A female DB-9 connector should be mounted in the aircraft to this port for easy Maintenance
Port Interface (MPI) access. The DB-9 connector allows connection of a battery powered Serial-
to-Wi-Fi MPI Module (P/N 87710-00) during installation and maintenance checks which can be
used to configure the system, provide installation status information, and update system
software/firmware using the FFS ADS-B MPI Android Application.
12.13 Configuration and Setup Using TC978
Do not use Configuration Mode during flight.
The system should be configured during initial system installation by a qualified technician. The
configuration items list in Section 12.3.1 should be used to document the system installation for
future reference. To view or change these settings you must enter TC978 Configuration Mode.
The configuration setup screen is the first thing displayed on startup when a completely new
FDL-978 Lite Series is installed and powered up for the first time. After a configuration has been
programmed, the system will power up in normal operating mode and the configuration will be
stored in the FDL-978 Lite Series and TC978.
12.13.1 Entering Configuration Mode
To enter TC978 configuration mode:
Hold down the FN button while turning the Mode Selection knob from OFF to any
operating mode.
In the configuration mode the TC978 Controller displays the following typical messages in
a quick, sequential order:
12.13.2 Configuration Mode Operation
*Port 4 (Altitude Encoder) is the only serial port that can be configured by the
installer. Input settings can either be left at UNUSED, or configured for use with an
Altitude Encoder. Refer to Section 12.13.2.6 for details on configuring this port.
