Table 6. Serial Port Input Baud Rate Settings - FreeFlight ADS-B FDL-978 Series Installation Manual

ADS-B FDL-978 Series and
Lite Series Installation Manual
Document No. 87343 Rev F
(1)
MPI setting names are listed first with TC978 configuration menu names in
parenthesis ().
(2)
Altitude input configuration of the GSL-71/SL70/R can affect the control output
baud rate. When passing altitude information from these devices, the baud rate
must be set to 9600.
(3)
Control Input is not required for receive only systems.
(4)
Setting an input port to Disp-Cntrl (TIS/FIS) must correspond to setting the
same output port to a display output (e.g. if serial port 6 output is set to Traffic-
Alert (TIS/FIS), then serial port 6 input can be set to either a) Disp-Cntrl (TIS/FIS)
to enable display control or b) UNUSED (Not Used) to disable display control.
ONLY one display port should be set to Disp-Ctrl).
(5)
When Port 2 is configured for GTX-Remote Input, it will automatically configure
the Port 2 output to provide ADS-B Plus GPS data out to the GTX device.
(6)
Refer to Figure 21 and Figure 22 for examples of wiring with one or two pin
time mark output.
(7)
Do not connect a separate altitude encoder to Port 4 when using the GSL-71
configuration.
(8)
The GSL-71 control head must be connected to an altitude encoder with 1ft
resolution. Due to the reverse logic of the GSL-71, the UAT status pin (pin 36)
must be grounded on the device and a separate ADS-B annunciator or display
used to monitor UAT status.
(9)
If any port is configured with these settings on a system with a TC978
installed, then 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.
Setting
4800, 9600, 19200,
38400, 57600, 115200
230400, 460800
3-16

Table 6. Serial Port Input Baud Rate Settings

These baud rates are typical for RS-232 or RS-422 equipment but
the correct rate must be selected to match the interfacing
equipment's configured or default baud rate.
These high baud rates are not recommended for RS-232 serial
ports.
Description
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