28 VDC Caused Hud to Display Tow Mode Prelaunch Attack Sysmbols

Page Title: 28 VDC Caused Hud to Display Tow Mode Prelaunch Attack Sysmbols
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MIL-S-70442 (AR)

APPENDIX A

IDENT NUMBER 34

DISCRETE

SIGNAL

INTERFACE

REQUIREMENTS

ATTACK MODE

NOMENCLATURE

TYPE

SINGLE WIRE UNSHIELDED

CONDUCTOR TYPE AND GAUGE

AIRCRAFT 28 VDC

ORIGIN

HUDS/SIGNAL PROCESSOR

DESTINATION

> 6.6K OHMS

DESTINATION IMPEDANCE

TOW/SCA

SOURCE

<100 OHMS

SOURCE IMPEDANCE

5 MA

MAX CURRENT

MIL-STD-704

MAX VOLTAGE

28 VDC( ATTACK)

TRUE STATE VOLTAGE

OPEN

CIRCUIT

FALSE STATE VOLTAGE

REMARKS

28 VDC CAUSED HUD TO DISPLAY TOW MODE PRELAUNCH ATTACK SYMBOLS.

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