Garmin GTR 225 Installation Manual page 45

5.2.8 VOR/ILS Indicator
VOR/ILS indicator displays both lateral and vertical, To/From indications, lateral and vertical flags, and
superflags. Connector P1002 always outputs the VOR/Localizer/Glideslope navigation information. The
VOR/ILS pins on P1002 are used to drive an indicator that displays VOR/ILS information at all times,
regardless of the CDI selection on the GTR/GNC.
VOR/LOC COMPOSITE OUT is a standard VOR/localizer composite output signal which may be used to
drive Left/Right, To/From, and Flag indications of certain navigation indicators that contain an internal
converter.
ILS ENERGIZE output becomes active (low) when VOR/LOC frequency is set to a localizer channel.
5.2.8.1 VOR/ILS Indicator Electrical Characteristics
5.2.8.1.1 Superflags
The output supplies not less than 320 mA with the output voltage not less than (AIRCRAFT POWER
-2 VDC) when the flag is to be OUT OF VIEW. The output voltage with respect to ground is
0 +/-250 mVDC when the flag is to be IN VIEW.
VOR/LOC SUPERFLAG*
GLIDESLOPE SUPERFLAG*
5.2.8.1.2 Deviation
Deviation outputs are each capable of driving up to three 1000  loads with 150 mVDC 15 mVDC for
full-scale deflection, 0 mVDC 4.5 mVDC when centered. The drive circuit provides for more than full-
scale deflection with a maximum course deviation output voltage of ± 300 mVDC 30 mVDC.
VOR/LOC +LEFT
VOR/LOC +RIGHT
GLIDESLOPE +UP
GLIDESLOPE +DOWN
5.2.8.1.3 TO/FROM
TO/FROM output is capable of driving up to three 200 Ω loads. When indicating TO, the output is
+225 ± 75 mVDC. When indicating FROM, output is -225 ± 75 mVDC. When invalid information is
present (Flag IN VIEW) the TO/FROM output is 0 ± 10 mVDC.
VOR/LOC +TO
VOR/LOC +FROM
190-01182-02
Rev. F
Pin Name
Pin Name
Pin Name
Connector
P2002
P2002
Connector
P2002
P2002
P2002
P2002
Connector
P2002
P2002
GTR 225/GNC 255 TSO Installation Manual
Pin I/O
15 Out
38 Out
Pin I/O
5 Out
6 Out
34 Out
55 Out
Pin I/O
1 Out
2 Out
Page 5-11