Garmin GNC 420AW Installation Manual - page 81
400W Series Installation Manual
Page 4-19
190-00356-02
Rev. G
4.8.2.4 Flag
Pin Name
Connector
Pin
I/O
VOR/LOC +FLAG
P4006
3
Out
VOR/LOC -FLAG (VOR/LOC COMMON)
P4006
4
Out
GLIDESLOPE +FLAG
P4006
30
Out
GLIDESLOPE +DOWN/-FLAG (GLIDESLOPE
COMMON)
P4006 31
Out
The Flag output is capable of driving up to three 1000
Ω meter loads. When valid information is present
(Flag OUT OF VIEW) the Flag output is 375 ±80 mVDC. When invalid information is present (Flag IN
VIEW) the Flag output is 0 ±25 mVDC.
4.8.2.5 OBS
Pin Name
Connector
Pin
I/O
VOR OBS ROTOR C
P4006
9
Out
VOR OBS ROTOR H (GROUND)
P4006
10
Out
VOR OBS STATOR D
P4006
13
In
VOR OBS STATOR F
P4006
12
In
VOR OBS STATOR E/G (VOR/LOC
COMMON)
P4006 11
Out
VOR OBS ROTOR C and H are a buffered 500 Hz output that is intended to drive the OBS rotors. VOR
OBS STATOR D and VOR OBS STATOR F are each phase and amplitude shifted version of the VOR
ROTOR C output. Each pair is intended to read one of the two windings of the indicator’s OBS stator.
4.8.2.6 VOR/LOC
COMPOSITE
Pin Name
Connector
Pin
I/O
VOR/LOC COMPOSITE OUT
P4006
8
Out
With a Standard VOR Test Signal applied, VOR/LOC COMPOSITE OUT is 0.5 ±0.1 VRMS into a 10
k
Ω load. With a Standard Localizer Centering Test Signal applied, VOR/LOC COMPOSITE OUT is
0.350 ±0.05 VRMS into a 10 k
Ω load.
4.8.2.7 ILS
ENERGIZE
Pin Name
Connector
Pin
I/O
ILS ENERGIZE
P4006
29
Out
The driver output voltage is not more than 1.0 V when sinking 20 mA. The maximum off state leakage
current with respect to GND is less than 10
μA.
4.8.3
VOR/ILS Indicator Configuration
None.
4.8.4
VOR/ILS Indicator Calibration and Checkout
Refer to Sections 5.3.14 and 5.3.15 for the VOR/LOC/GS checkout.
4.8.5
VOR/ILS Indicator Interconnect
Refer to Figure H-20 for the VOR/ILS indicator interconnect.