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500 SERIES INSTALLATION MANUAL Page 5-9
P/N 190-00181-02 Rev G
CDI (GNS 530 Only)
Selection Description
GPS
The GNS 530 CDI button is in the GPS state, and the GPS ANNUNCIATE
output is active. This annunciator output may be required to be active for
some installations.
VLOC
The GNS 530 CDI button is in the VLOC state, and the VLOC
ANNUNCIATE output is active.
GPS Only
The GNS 530 CDI button has been disabled.
NOTE
If it is desired to disable the GNS 530 CDI key, press MENU on the MAIN CDI/OBS CONFIG page and
select “Ignore CDI key?”. This causes the field above the CDI key to always display GPS, regardless of
CDI key presses. This may be necessary for certain EFIS systems where navigation sensor selection must
be accomplished on the EFIS or its control panel.
OBI SOURCE (GNS 530 Only)
Selection Description
Always GPS
The MAIN King Serial OBI outputs are always GPS. This is useful if it is
desired to switch a Bendix/King KI 229 or KNI 582 RMI pointer
independently from the GNS 530 CDI button.
Track CDI
The MAIN King Serial OBI outputs are GPS or VOR, and switchable by the
GNS 530 CDI button. This is useful if it is desired the Bendix/King KI 229
or KNI 582 RMI pointer to display the same navigation source as the GNS
530 CDI outputs.
VERT CDI
Selection Description
Flag Up
The vertical deviation bar is parked in the full-scale up position when GPS or
VOR navigation is selected for output. The exception is when the CDI is in
VLOC mode and an ILS frequency is tuned, in which case the vertical
deviation bar is parked in the centered position.
Flag Center
The vertical deviation bar is parked in the centered position whenever it is
flagged.