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|  MIL-T-63520(AR)
3.7 Electrical power supply. The control shall operate from power
sources with characteristics conforming to MIL-STD-704, The power supplies
for all acceptance tests shall be as specified in Table I.
Table I. Electrical Power
Pin
Function
Power Characteristics
J1-A
Arming
28 +0.5 -O Vdc at 10A
-----
J1-B
Ground
J1-C
28+0.5 -O Vdc at 4A
Low Level Power
J1-D
28 +0.5 -0 Vdc at 4A
Low Level Power
J1-G
400 Hz Power Input
115 +5% Vat, 400 Hz at 0.6A
J1-H
400 Hz Power Return
115 Vac Return
3.7.1 Ground. When the Gun Control Assembly is installed in the
helicopter, the enclusures and mounting components shall be electrically
bonded in accordance with MIL-B-5087.
3.8 Performance requirements. The gun control assemblies shall comply
with the performance requirements specified herein, when tested as specified
in 4.5.6.
3.8.1 Electronic characteristics. The gun control assembly shall comply
with the electronic characteristics specified in Table II. The signal
Parameter column of Table II presents-the inputs, outputs, and external loads,
as applicable, that characterize the interface with the Gun Control Assembly,
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