Installation Procedures
2-24
560-0982-00 Rev D
Apollo CNX80 Installation Manual
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
Ω
load, (i.e. up to a
maximum of five 1k
Ω
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 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).
2.8.2.4 Superflags
P7-9
Main GS Superflag
P7-27 Main CDI Superflag
Each flag output provides (V
in
– 2) volts relative to ground when valid information is present, where V
in
.
represents the aircraft power supplied to the CNX80. 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 SL30 will calibrate out any errors.
P7-7
OBS_ D {S1}
(COS input high)
P7-16 OBS_ F {S4}
(SIN input high)
P7-24 OBS_H {R HI}
(Reference output high)
P7-25 OBS_C {R LO} (Reference output low)
P7-26 OBS_E {S3}
(COS input low)
P7-34 OBS_G {S2}
(SIN input low)
NOTE
The CNX80 cannot drive multiple resolvers at the same time. It is not recommended that
external resolvers be switched through a relay or other means because the resolver must be
calibrated to the radio. If multiple resolvers are desired in the installation, the primary unit
must be installed and calibrated as described here. The secondary unit should use the
composite output.
Refer to section 3.2.1.3 for information on calibrating the resolver input.
2.8.3 A
UXILIARY
C
OURSE
D
EVIATION
I
NDICATOR
The Auxiliary CDI output displays both lateral and vertical deviation from selected course, lateral and
vertical flags, and TO/FROM indications. This output is always based upon GPS information, regardless
Summary of Contents for Apollo CNX80
Page 1: ...Apollo CNX80 Installation Manual September 2003 560 0982 00 Rev D...
Page 10: ...Table of Contents viii 560 0982 00 Rev D Apollo CNX80 Installation Manual NOTES...
Page 30: ...General Information 1 20 560 0982 00 Rev D Apollo CNX80 Installation Manual NOTES...
Page 114: ...Periodic Maintenance 6 2 560 0982 00 Rev D Apollo CNX80 Installation Manual NOTES...
Page 134: ...Appendix D Interconnect Diagrams D 2 560 0982 00 Rev D Apollo CNX80 Installation Manual NOTES...
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