TT31 Transponder Installation Manual
8 May 2017
00455-00
Issue AQ
______________________
ii
Trig Avionics Limited
5.7.3
Mutual Suppression ........................................................................................................ 15
5.7.4
Serial Port Options ......................................................................................................... 15
5.7.5
Altitude Inputs and Output .............................................................................................. 15
5.7.6
Squat Switch Input .......................................................................................................... 16
5.7.7
Ident Switch Input ........................................................................................................... 16
5.7.8
External Standby Input ................................................................................................... 16
5.7.9
Audio Output ................................................................................................................... 16
5.7.10
Audio Mute Input ............................................................................................................ 16
5.7.11
Altitude Alerter Output ................................................................................................... 17
5.7.12
GPS Position Input ......................................................................................................... 17
5.7.13
TIS Traffic Output ........................................................................................................... 17
6.
INSTALLATION SETUP AND TEST ....................................................................................... 18
6.1
C
ONFIGURATION
I
TEMS
........................................................................................................... 18
6.1.1
Aircraft Registration (VFR Flight ID) ............................................................................ 18
6.1.2
Aircraft Address Programming ...................................................................................... 18
6.1.3
VFR Squawk Code .......................................................................................................... 19
6.1.4
Airspeed Category .......................................................................................................... 19
6.1.5
Aircraft Category ............................................................................................................ 19
6.1.6
Squat Switch Source ....................................................................................................... 19
6.1.7
ARINC TIS Output .......................................................................................................... 19
6.1.8
RS232 Input/Output ........................................................................................................ 19
6.1.9
ADS-B Configuration...................................................................................................... 20
6.1.10
Audio Volume ................................................................................................................. 21
6.1.11
LCD Dim Point ............................................................................................................... 21
6.1.12
LCD Brightness Curve .................................................................................................... 21
6.2
T
EST ITEMS
.............................................................................................................................. 21
6.2.1
Interface Check ............................................................................................................... 21
6.2.2
Altitude Check ................................................................................................................. 22
6.2.3
Lighting Bus .................................................................................................................... 22
6.2.4
Temperature.................................................................................................................... 22
6.2.5
RS232 Input Check ......................................................................................................... 22
6.2.6
Transponder Cycles ........................................................................................................ 22
7.
POST INSTALLATION CHECKS ............................................................................................ 23
7.1
A
UTOMATIC
A
IR
/G
ROUND
C
ONSIDERATIONS
......................................................................... 23
8.
NORMAL OPERATION ............................................................................................................. 24
8.1
O
VERVIEW
.............................................................................................................................. 24
8.2
D
ISPLAY
.................................................................................................................................. 24
8.3
M
ODE
S
ELECTOR
K
NOB
.......................................................................................................... 24
8.4
P
USH
B
UTTONS
....................................................................................................................... 25
