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| ![]() MIL-S-7O442 (AR)
APPENDIX A
DISCRETE
SIGNAL
INTERFACE
REQUIREMENTS
IDENT NUMBER 35
b
NOMENCLATURE
READY
MODE
TYPE
DC
CONDUCTOR TYPE AND GAUGE
SINGLE
WIRE
UNSHIELDED
ORIGIN
AIRCRAFT
28
VDC
DESTINATION
HUDS/SIGNAL
PROCESSOR
DESTINATION IMPEDANCE
>
6.6K OHMS
SOURCE
TOW/SCA
SOURCE IMPEDANCE
<100
OHMS
MAX CURRENT
5 MA
MAX VOLTAGE
MIL-STD-704
TRUE STATE VOLTAGE
28 VDC (READY)
FALSE STATE VOLTAGE
OPEN
CIRCUIT
REMARKS
28 VDC CAUSED HUD To DISPLAY TOW MODE PRELAUNCH ATTACK SYMBOLS.
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