Garmin GNC 420AW Installation Manual - page 66
Page 4-8
400W Series Installation Manual
Rev. F
190-00356-02
4.4.2.4
213B
Superflags
Pin Name
Connector
Pin
I/O
MAIN LATERAL SUPERFLAG
P4001
17
Out
MAIN VERTICAL SUPERFLAG
P4001
18
Out
The output supplies not less than 500 mA on a 28 volt system and 250 mA on a 14 volt system with the
output voltage not less than (AIRCRAFT POWER –1.5 VDC) when the flag is to be OUT OF VIEW.
The output voltage with respect to ground is less than 0.25 VDC when the flag is to be IN VIEW.
4.4.2.5
214B
OBS
Pin Name
Connector
Pin
I/O
MAIN OBS ROTOR C
P4001
31
Out
MAIN OBS ROTOR H (GROUND)
P4001
32
Out
MAIN OBS STATOR D
P4001
33
In
MAIN OBS STATOR E (2.5V COMMON OBS)
P4001
34
Out
MAIN OBS STATOR F
P4001
35
In
MAIN OBS STATOR G (2.5V COMMON OBS)
P4001
36
Out
MAIN OBS ROTOR C and H are a buffered output that is intended to drive the OBS rotors. MAIN OBS
STATOR D and MAIN OBS STATOR F are each phase and amplitude shifted version of the MAIN
ROTOR C output. Each pair is intended to read one of the two windings of the indicator’s OBS stator.
4.4.3
121B
Main Indicator Configuration
None.
4.4.4
122B
Main Indicator Calibration and Checkout
Refer to Section
387H
5.3.11 for the main CDI/OBS checkout.
4.4.5
123B
Main Indicator Interconnect
Refer to
388H
Figure H-7 for the generic main indicator interconnect. Refer to
389H
Figure H-8 for the interconnect
between a GNS 430W and a Bendix/King KI 209A. Refer to
390H
Figure H-9 for the interconnect between a
GPS 400W or GNC 420W and a Bendix/King KI 208A.