Garmin GNC 420AW Installation Manual - page 220
Page H-48
400W Series Installation Manual
Rev. F
190-00356-02
MID-CONTINENT ACU CONNECTION
EXTERNAL GPS ANNUNCIATIONS
8
NOTES:
1. ALL WIRES 24 AWG OR LARGER UNLESS OTHERWISE SPECIFIED.
2. IF A CDI/HSI SOURCE SELECTION ANNUNCIATOR IS REQUIRED, INDICATORS ON THIS PAGE ARE
SUITABLE TO MEET THE ANNUNCIATION REQUIREMENT.
3 THE PREFERRED ANNUNCIATION IS VLOC / GPS, ALTHOUGH NAV / GPS WILL BE ACCEPTABLE.
4 LEGENDS ARE HIDDEN (BLACK) WHEN NOT ILLUMINATED.
5 STACO SWITCH INDICATOR P/N 992561-1241762200 (14V SYSTEMS) AND
P/N 992561-1241862200 (28V SYSTEMS) SHOWN.
6 VIVISUN INDICATOR P/N 95-40-17-B6-AW724 (28V SYSTEMS) SHOWN. INDICATOR MAY BE
CONVERTED TO 14V OPERATION BY REPLACING 28V LAMPS WITH 14V LAMPS P/N 14-113.
7 VIVISUN INDICATOR WITH MOMENTARY SWITCH P/N 95-45-11-B6-AW724 (28V SYSTEMS) SHOWN.
INDICATOR MAY BE CONVERTED TO 14V OPERATION BY REPLACING 28V LAMPS WITH 14V
LAMPS P/N 14-113.
8 THESE UNITS ALSO PROVIDE NAVIGATION SOURCE SELECTION ANNUNCIATION. MID-
CONTINENT ANNUNCIATION CONTROL UNITS FOR BOTH 14V AND 28V SYSTEMS SHOWN. THIS
DIAGRAM IS PROVIDED TO SHOW INTERCONNECTION BETWEEN GNS 400W SERIES UNIT AND
ACU ONLY. REFER TO MID-CONTINENT INSTALLATION MANUALS FOR ADDITIONAL INSTALLATION
INFORMATION.
9 CDI SOURCE SELECTION AND ANNUNCIATION IS DONE WITH EXTERNAL RELAYS. REFER TO MID-
CONTINENT INSTALLATION MANUAL FOR ADDITIONAL INSTALLATION INFORMATION.
P4001
1
2
3
4
5
6
7
9
71
73
MD41-14xx
GPS ACU
MID-CONTINENT MD41-xxxx
-1404A/1408A
-1414A/1418A
GARMIN
VLOC ANNUNCIATE
GPS ANNUNCIATE
WAYPOINT ANNUNCIATE
TERMINAL ANNUNCIATE
APPROACH ANNUNCIATE
MESSAGE ANNUNCIATE
OBS ANNUNCIATE
INTEGRITY ANNUNCIATE
OBS MODE SELECT
CDI SOURCE SELECT
1470
-1464A/1474A
-1468A/1478A
J1
2
1
8
3
9
10
24
20
12
4
J1
-
-
8
3
9
10
24
20
12
-
APR ANN
MSG ANN
OBS ANN
WPT ANN
TERM ANN
OBS MODE SELECT
VLOC ANN
GPS ANN
CDI SOURCE SELECT
INTG ANN
J1
-
2
1
8
3
9
10
24
20
12
9
400W/420W/430W
-1484W
-1488W
7
8
2
4
6
3
-
1
-
-
J1
Figure H-29. External Navigation Source and GPS Annunciators
Sheet 2 of 2