Aspen Avionics EFD1000 - Page 78

EFD1000 Installation Manual
DOCUMENT # A-01-126-00 PAGE 78-225 Revision H
© Copyright 2009 Aspen Avionics Inc.
TO/ FROM FLAG Input
Differential input from a GPS receiver indicating whether flying TO or FROM the active
waypoint.
TO the waypoint: +40mV or greater
FROM the waypoint: -40mV or greater
LEFT/ RIGHT Input
Differential input from a GPS receiver indicating LEFT or RIGHT of GPS course.
Input Range: ±150mVdc full scale
Load: 1000 ohm
Lateral Flag Input
Validity flag from the GPS receiver indicating valid LEFT and RIGHT data.
Valid: 260mV to 800mVdc
Invalid: Less than 260mVdc
Vertical Deviation Input
Differential input from a GPS receiver indicating a fly UP or DOWN command.
Input Range: ±150mVdc full scale
Load: 1000 ohm
Vertical Deviation Flag Input
Validity flag from the GPS receiver indicating valid UP and DOWN data.
Valid: 260mV to 800mVdc
Invalid: Less than 260mVdc
OBS/ LEG (HOLD) Input
Active low discrete input from a GPS receiver when in the OBS or HOLD mode.
APPR Active Input
Active low discrete input from a GPS receiver when approach mode is activated.
FCS-LOC Engage Input
Active low discrete input from a GPS receiver when approach is selected.