Garmin Apollo CNX80, Installation Manual

Page: 55 / 168

Installation Procedures
Apollo CNX80 Installation Manual 560-0982-00 Rev D
2-25
of the navigation source that is selected for the Main CDI output using the CDI bezel key. Since the Main
CDI output can be switched between GPS and VOR/ILS, it is not necessary to use these outputs to drive
an indicator. It is only necessary if it is desired to have a separate indicator display GPS deviation
information full-time. This output does not provide superflag outputs, so if superflags are required a
converter box must be used to generate the required signals using the low-level valid flags.
Refer to Appendix D for interconnect information.
2.8.3.1 Deviation Outputs
P5-45 Aux CDI + Left
P5-46 Aux CDI + Right
P5-50 Aux GS + Up
P5-51 Aux GS + Down
Each deviation output provides
±
150 mV full scale and is capable of driving up to a 200
Ω
load, (i.e. up to
a maximum of five 1k
Ω
loads connected in parallel).
2.8.3.2 TO / FROM Output
P5-47 Aux CDI + TO
P5-48 Aux CDI + FROM
The TO / FROM output provides
±
250 mV and is capable of driving up to a 200
Ω
load, (i.e. up to a
maximum of five 1k
Ω
loads connected in parallel).
2.8.3.3 Flags
P5-49 Aux CDI + Valid
P5-54 Aux CDI - Valid
P5-52 Aux VDI + Valid
P5-55 Aux VDI - Valid
Each flag output pr300 mV when valid information is present and is capable of driving up to a
200
Ω
load (i.e. up to a maximum of five 1k
Ω
loads connected in parallel).
2.8.4 C
OMPOSITE
I
NDICATOR
The CNX80 provides a standard VOR/localizer composite output signal that may be used to drive the
left/right deviation, TO / FROM and valid flag indications of certain navigation indicators that contain an
internal converter. If an external converter is driven from the composite output, the composite output will
be disabled whenever the VOR monitor mode is active or back course localizer mode is enabled. This will
cause the external converter to flag.
P7-19 Composite Out
P7-37 Composite Ground
In the VOR mode, the composite signal output is 0.500 V
RMS.
In the localizer mode, the composite signal
output is 0.390 V
RMS.
This output is capable of driving up to a 1000
Ω
load.