Garmin GNS 480 Installation Manual page 21

1.3.9.2 Auxiliary CDI (GPS Only)
CDI L/R deviation .........................................±150 mv full scale (200 Ω load max)
TO/OFF/FROM flag......................................±250 mv, TO/FROM (200 Ω load max)
Nav valid flag ................................................+300 mv for valid indication (200 Ω load max)
VDI up/down .................................................±150 mv full scale (200 Ω load max)
VDI valid flag ................................................+300 mv for valid indication (200 Ω load max)
1.3.9.3 Composite Output
1.3.9.3.1 VOR Mode
Band pass frequency......................................0 Hz to 15 kHz
Variation over frequency range .....................Less than 2 dB
Output signal voltage.....................................0.500 VRMS
Output loading ...............................................1,000 ohms (max)
1.3.9.3.2 LOC Mode
Band pass frequency......................................0 Hz to 15 kHz
Variation over frequency range .....................Less than 2 dB
Output signal voltage.....................................0.390 VRMS (0.275 VRMS @ 90 Hz, 0.275 VRMS
Output loading ...............................................1,000 ohms (max)
ILS energize signal ........................................Sinks up to 400 mA (max)
1.3.9.4 Annunciator Outputs
Annunciators..................................................Open collector outputs capable of sinking up to 400
GNS 480 (CNX80) Installation Manual560-0982-01 Rev A
@ 150 Hz)
mA for turning ON annunciator lamps
General Information
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