FreeFlight 2101 I/O PLUS, Руководство по установке и проверке

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Page C-6
Revision E
May 31, 2006
FreeFlight 2101 I/O Approach Plus GPS Navigation System
C.2 SYSTEM OUTPUTS
C.2.1 Lateral Deviation (DC Crosstrack) (LT/RT)
OUTPUT CHARACTERISTICS DESCRIPTION
Low Level (J1-33) Source Analog voltage source referenced
to ground
Range 0 to ±150
µ
A into 1000
Ω
load
Resolution 1.17
µ
A
Accuracy 10
µ
A centering
Index Reference Desired track
Positive Direction Sense Fly right when J1-33 is positive
with respect to J1-31
Scale Factor Full Scale - 5 nmi enroute
1 nmi terminal
0.3 nmi (user selectable)
Load Capability Up to three 1000
Ω
loads
C.2.2 Nav Flag
OUTPUT CHARACTERISTICS DESCRIPTION
High Level (J1-26) Source Transistor current source
Status 0 to +3.5 Vdc = Not Valid
+18.5 Vdc to +30 Vdc = Valid
Load 200 mA current source
Low Level (J1-25) Source Analog voltage source referenced
to ground
Status 0 to 150 mVdc = Not Valid
250 to 900 mVdc = Valid
Load Up to three 1000
Ω
loads
C.2.3 TO/FROM
OUTPUT CHARACTERISTICS DESCRIPTION
Low Level (J1-34) Source Polarity reversing analog current
source referenced to ground
Range ±40 mV
Index Reference Next or TO waypoint
Positive Direction Sense J1-34 is positive with respect
to J1-31 when the aircraft and
the last or FROM waypoint are
on the same side of a line
perpendicular to the desired track
and passing though the next or
TO waypoint. Polarity is reversed
for the FROM condition.
Load Capability 40 mV for each of up to three
200
Ω
loads in parallel