TT26 ADS-B Transponder Installation Manual
24 January 2017
01633-00
Issue AC
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6
Trig Avionics Limited
connector and a static pressure connector. The 25 way D-type interface
provides the following services:
Power Input
The TT26 operates on 11 to 33 volts DC.
Controller Datalink
A two wire data link is used to connect the TT26 and the
controller. Depending on TT26 option, this interface can
be provided over a half-duplex RS-485 interface (TMAP
RS-485 bus) or a full duplex RS-232 interface (TMAP
over RS-232).
Second Datalink
A secondary RS-232 interface provides access to GPS
data.
“On ground” input
Allows automatic flight/ground mode switching for
aircraft with a squat switch.
