ADS-B FDL-DB Dual Band Series
Installation Manual
Document No. 88552 Rev A
1-6
FFS Copyright © 2020 All rights reserved.
1.4
General System Description
The FDL-DB-XVR (
ADS-B In/Out)
transmits, via UAT datalink, and receives, via a UAT and
1090ES data links, position, velocity, and other flight information to and from other aircraft and
ground station equipment. The FDL-DB-RX (
ADS-B In only
) receives position, velocity, and
other flight information from other aircraft and ground station equipment via a UAT and 1090ES
data links. The FDL-DB Series satisfy the Technical Standard Order (TSO) requirements
referenced in Section 1.1 and the associated Minimum Operational Performance Standards
(MOPS) RTCA DO-282B for UAT ADS-B class A1H/A1S/B1S transceiver equipment and RTCA
DO-260B for 1090ES ADS-B Class A1S/A1 receiver equipment.
The following is a short summary of the transceiver and receiver features:
Optional Internal GPS
Models with the optional internal GPS/WAAS sensor have a single antenna input with an
additional TNC connector. The internal GPS provide a TSO-C145d Class Beta 1 certified
GPS/WAAS data output on serial port 1. FFS/Chelton navigation protocol is output on
RS-232 serial output port 1 allowing it to interface with other external equipment. ARINC
743A/B GPS output labels can also be configured as an upgrade option for output on
ARINC output port 1 or 2. In addition, the internal GPS models can be configured to
output GTX Remote (GPS) protocol data to interface with the GTX 330ES on the output
serial port (typically port 2)
External GPS Input
The FDL-DB Series can connect to any FFS navigation protocol compliant GPS (e.g.
FFS 1201), Garmin series 400W/500W with GPS ADS-B Plus interface through an RS-
232 serial port or an ARINC 743A/B compatible GPS interface (e.g. 1203C) through an
ARINC 429 bus.
Note: external GPS connections are STC specific conforming GSP pairing requirements
described in AC 20-165B.
Status LEDs
Four status LEDs (ST
– UAT Status, GPS – GPS Status, TX – UAT Transmit, and RX –
UAT Receive) indicate the operational status during installation.
TC978 Controller Interface
A TC978 Controller interface provides low voltage power, system on/off discrete control,
and a communication interface on Serial Port 3. The system can also be configured
using the TC978.
Configurable Serial Interfaces
Five RS-232 serial ports, one RS-422 port (that can be configured as an additional RS-
232 port), four optional ARINC-429 input ports, and two optional ARINC-429 output ports
can be installation configured to interface to transponder controllers, GPS input, GPS
output (serial only), Altitude/Air Data input, TCAS Input, multiple Display outputs, and
Maintenance Personal Computer (PC)/tablet.
Discrete Inputs/Outputs
Three discrete inputs (Air/Ground Switch, Traffic Test, and Anonymous Mode) and two
discrete outputs (Transmit Suppression and UAT Status) provide control and status
feedback.
ADS-B Antennas
