Garmin GNS 480 Installation Manual page 54

Installation Procedures
2.8.2.1 Deviation Outputs
P7-13 Main CDI + Right
P7-14 Main CDI + Left
P7-30 Main GS + Up
P7-31 Main GS + Down
Each deviation output provides 150 mV full scale and is capable of driving up to a 200 load, (i.e. up
to a maximum of five 1k loads connected in parallel).
2.8.2.2 TO / FROM Output
P7-11 Main CDI + FROM
P7-12 Main CDI + TO
The TO / FROM output provides 250 mV and is capable of driving up to a 200 load, (i.e. up to a
maximum of five 1k loads connected in parallel).
2.8.2.3 Flags
P7-10 Main CDI + Valid
P7-29 Main CDI - Valid
P7-28 Main GS + Valid
P7-32 Main GS - Valid
Each flag output provides +300 mV when valid information is present and is capable of driving up to a
200 load, (i.e. up to a maximum of five 1k loads connected in parallel).
2.8.2.4 Superflags
P7-9 Main GS Superflag
P7-27 Main CDI Superflag
Each flag output provides (V
represents the aircraft power supplied to the GNS 480. Each output is capable of supplying up to 400
mA.
2.8.2.5 OBS Resolver
The OBS resolver input should be compatible with a standard 6-wire OBS interface -
any electrical zero crossing will work because the GNS 480 will calibrate out any errors.
P7-7 OBS_ D {S1}
P7-16 OBS_ F {S4}
P7-24 OBS_H {R HI}
P7-25 OBS_C {R LO}
P7-26 OBS_E {S3}
P7-34 OBS_G {S2}
2-24
– 2) volts relative to ground when valid information is present, where V
in
(COS input high)
(SIN input high)
(Reference output high)
(Reference output low)
(COS input low)
(SIN input low)
560-0982-01 Rev A GNS 480 (CNX80) Installation Manual
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in