Figure B-6 Gtx 335 - Audio Interconnect - Garmin GTX 335 w GPS Installation Guidance

GTX 335
P3251
AUDIO OUT HI 46
AUDIO OUT LO 47
3
AUDIO MUTE 37
4
GTX 335
P3251
AUDIO OUT HI 46
AUDIO OUT LO 47
3
AUDIO MUTE 37
4
NOTES
REFER TO THE GENERAL NOTES AT THE BEGINNING OF THIS APPENDIX FOR MORE INFORMATION AND
1
REQUIREMENTS.
IT IS PERMITTED TO USE OTHER AVAILABLE UNSWITCHED, UNMUTED INPUTS. IF THE 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.
2
A TYPICAL VALUE FOR MIXING RESISTORS IS 390Ω 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)
3
AND LEFT FLOATING AT THE OTHER END.
4
ANY AUDIO MUTE CONFIGURABLE DISCRETE CAN BE USED.
CAN BE CONNECTED TO MUTE SWITCH AND MUST BE CONNECTED TO HIGHER PRIORITY SYSTEMS SUCH
5
AS TAWS.
190-00734-17
Rev. 1
SL 10/15
GMA 340 GMA 347
SERIES
BOTTOM J1
T 31
GND LUG 32
EXTERNAL AUDIO INHIBIT DISCRETE (GND) – CONNECT TO HIGH PRIORITY
DEVICES (TAWS, ETC.)
BENDIX/KING
KMA 24H
KMA 24
-70/-71
P241 P241
T 10
GND LUG GND LUG
EXTERNAL AUDIO INHIBIT DISCRETE (GND) – CONNECT TO HIGH PRIORITY
DEVICES (TAWS, ETC.)

Figure B-6 GTX 335 - Audio Interconnect

GARMIN
GMA 35/
GMA 1347
35C/350
P3471 P3501 P3501
19 31 19
39 32 39
5
PS ENGINEERING
KMA 26 KMA 28 PMA 8000
P261 J1 J1
(Bottom) (Bottom)
14 T 31
31 GND LUG 32
5
GTX 335 w/GPS Installation Guidance
AUDIO
PANEL
(ANALOG)
2
AUDIO IN [HI]
AUDIO IN [LO]
AUDIO
PANEL
PMA 6000
(ANALOG)
PMA 7000
BOTTOM
2
T AUDIO IN [HI]
GND LUG AUDIO IN [LO]
Page B-10