GOODRICH Stormscope Series II Installation Manual page 63

SIGNAL
Heading Valid
Remote Clear
Inhibit
A-4
Rev. C
WX-950
Installation Manual
CHARACTERISTICS
Indicates that the heading source is providing valid heading information.
The active polarity (i.e., HEADING FLAG (+) or HEADING FLAG
(-)) is selected via the FLAG jumper located in the connector back-
shell. The line is debounced via software.
CONNECTION
CABLE
VOLTAGE
INPUT IMPEDANCE >2k Ohm
INPUT CURRENT
This input may be connected to an external switch (normally a yoke
mounted switch). When activated, this switch performs the same function
as the lower left softkey. When activated in weather mode, the strike
buffers are cleared and all displayed lightning strikes are erased. This
input is diode isolated and debounced. This input will perform any
function indicated for the same lower left softkey in other modes.
CONNECTION
CABLE
VOLTAGE
This input may be connected to the switch on the microphone of the
aircraft's communications transmitter. When it is active, strike processing
is disabled to prevent transmitted signals from corrupting the storm data.
This input is diode isolated.
The inhibit line is not needed if the Stormscope antenna and
communications antennas are on opposite sides of the fuselage.
CONNECTION
CABLE
VOLTAGE
NOTE
J1-6 (HDG FLAG+)
J1-19 (HDG FLAG-)
See paragraph 2.7.3.
High Sense (FLAGHI - FLAGLO):
Min: 5.0V
Max: 30.0V
Low Sense (FLAGHI - FLAGLO):
Min: -30.0V
Max: 1.0V
Active: Min: 1mA
Max: 15mA
J1-18 ( SOFTKEY E )
Minimum 22 AWG wire.
Active: Min: 0.0V
Max: 1.5V
Inactive Min: 3.5V or Open
(Internal 4.7K pull-up)
Max: 5.0V
NOTE
J1-1 ( INHIBIT )
Minimum 22 AWG wire.
Active: Min: 0.0V
Max: 0.7V
Inactive Min: 2.4V
Max: 28.4V