ADS-B FDL-DB Dual Band Series
Installation Manual
Document No. 88552 Rev A
FFS Copyright © 2020 All rights reserved.
1-7
There are two (top and bottom) ADS-B antenna connectors. The units can be configured
to use the top, bottom, or both (diversity) antennas.
Personality Module Interface
A personality module installed in the aircraft connector allows configuration settings to
automatically be retrieved and set when a transceiver or receiver unit is removed and
replaced in the aircraft.
1.4.1 TC978 Controller
Figure 1: TC978 Controller
Polarized sunglasses may interfere with the display visibility of the TC978.
The TC978 Controller provides operational functionality, status display, and limited configuration
setup for the FDL-DB Series. It is optional for the FDL-DB-XVR control and status interface.
The controller has a DB-9 connector for electrical interface and a static pressure port. The
controller contains a Liquid Crystal Display (LCD) with controls and built-in Altitude Encoder.
TC978 low voltage input power is provided by the connected FDL-DB Series equipment. The
TC978 uses serial interface to the FDL-DB Series for control and also provides remote on/off
power control and serial altitude output.
The following is a short summary of the TC978 Controller features:
Display and Controls
The TC978 has an LCD status display,
IDT
(identify) button,
VFR
(Visual Flight Rules)
button,
FN
(function) button,
ENT
(enter) button, Mode Selection knob, and
CODE
knob.
Altitude Encoder
The TC978 has a built-in altitude encoder to measure pressure altitude.
Input Power
The TC978 receives low-voltage power from the FDL-DB-XVR.
Serial Interface
An RS-485 serial data link is used to connect the TC978 to the FDL-DB-XVR.
Remote On/Off
System on/off power is controlled with the Mode Selection knob.
