190-01499-02
GTX 3X5 Transponder TSO Installation Manual
Rev. 4
Page D-19
NOTES
Figure D-12 GTX 3X5 - Audio Interconnect
SEE THE GENERAL NOTES IDENTIFIED AT THE BEGINNING OF THIS APPENDIX FOR ADDITIONAL DETAILS
AND REQUIREMENTS.
IT IS ACCEPTABLE TO USE OTHER AVAILABLE UNSWITCHED, UNMUTED INPUTS. IF AUDIO PANEL DOES
NOT HAVE AN AVAILABLE UNSWITCHED, UNMUTED INPUT, AUDIO FROM THE GTX 3X5 MUST BE MIXED
WITH AN EXISTING AUDIO SOURCE USING RESISTORS TO ISOLATE THE AUDIO OUTPUT FROM EACH LRU.
A TYPICAL VALUE FOR MIXING RESISTORS IS 390
Ω
¼ W.
THE AUDIO LEVELS OF EXISTING AUDIO SOURCES WILL HAVE TO BE RE-EVALUATED AFTER MIXING
RESISTORS ARE INSTALLED. SHIELDS FOR AUDIO CABLES SHOULD BE GROUNDED AT ONE END (WITH
LEADS LESS THAN 3.0 INCHES) AND LEFT FLOATING AT THE OTHER END.
GARMIN
SL 10/15
SERIES
BOTTOM
GMA 340 GMA 347
GMA 35
GMA 350
J1
P3471
P3501
GTX 3X5
P3251
AUDIO OUT HI
AUDIO OUT LO
AUDIO INHIBIT
46
47
37
32
31
GND LUG
T
39
19
32
31
AUDIO
PANEL
(ANALOG)
AUDIO IN [LO]
AUDIO IN [HI]
EXTERNAL AUDIO INHIBIT DISCRETE (GND) – CONNECT TO HIGH PRIORITY
DEVICES (TAWS, ETC.)
PS ENGINEERING
BENDIX/KING
PMA 8000
PMA 6000
PMA 7000
KMA 24
KMA 26
KMA 28
KMA 24H
-70/-71
J1
(Bottom)
BOTTOM
P241
P261
J1
(Bottom)
P241
GTX 3X5
P3251
AUDIO OUT HI
AUDIO OUT LO
AUDIO INHIBIT
46
47
37
GND LUG
T
14
31
GND LUG
T
14
10
32
31
GND LUG
T
AUDIO
PANEL
(ANALOG)
AUDIO IN [LO]
AUDIO IN [HI]
EXTERNAL AUDIO INHIBIT DISCRETE (GND) – CONNECT TO HIGH PRIORITY
DEVICES (TAWS, ETC.)
2
2
3
3
1
2
3