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Page Title:
Status Lines from Status Logic Subunit to Navigation System |
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|  MIL-D-81347C(AS)
Status Lines to Status Logic Subunit
3.5.1.4.6.4.6
Signal Characteristics
3.5.1.4.6.4.6.1
Status Word 1
3.5.1.4.6.4.6.1.1
(1) logical ''1"= 0 . 5 - 0 . 0 V o l t
logical "0" = 4 1 V o l t s
(2) The signals shall be transmitted over a twisted pair cable via
data line drivers as per WR-101 Part II.
Status Word 2 to 5 and SAD
3.5.1.4.6.4.6.1.2
(1) logical "1" = 0 . 0 + 0 . 5 - 0 . 0 V o l t
logical ''0''=Open
.
(2) Twisted Pairs - The signals shall be transmitted over a
.
twisted pair cable, one of which is the DPS signal return. This signal return shall not be tied to any
other component.
(3) Up to 15 milliseconds of contact bounce noise may accompany
a transition of any of the lines.
Status Lines from Status Logic Subunit to Navigation System
3.5.1.4.6.4.7
Signal Characteristics
3.5.1.4.6.4.7.1
3.5.1.4.6.4.7.1.1
Doppler
(1) logical "1" = 0+0.5-0.0. Volt
logical "0" = 4 1 Volts
(2) The signals shall be transmitted over a twisted pair cable
via data line drivers per WR-101 Part II.
Other than Doppler
3.5.1.4.6.4.7.1.2
=
0+0.5 - 0.0 Volt, Drive =250 MA
(1) logical "1"
=
Effectively Open
logical "0"
(2) The relays shall use the 12 V supplied by the DPS. This
voltage shall not be tied to any other component.
59
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