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DEFSTAN 00-18(PT4)/4(1995) : 1995

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

AVIONIC DATA TRANSMISSION INTERFACE SYSTEMS - PART 4: DISCRETE SIGNAL INTERFACES
Available format(s)

Hardcopy , PDF

Withdrawn date

11-02-2015

Language(s)

English

Published date

01-01-1995

Section A. Introduction
1 Scope
2 Discrete signal types
3 Purpose
4 Related documents
5 Definitions
Section B. General requirements
6 Test and operating requirements
7 Form of signals
8 Interface categories and constraints
Section C. Critical timing signalling
9 General
10 Transmitter
11 Receiver
12 Cable
Section D. Non-critical timing signalling
13 General
14 Transmitter
15 Receiver
16 Cable
Section E. Low power switching
17 General
18 Low power switch
19 Switching loads
20 Cable
Section F. Fault detecting, non-critical timing signalling
           interface
21 General
22 Switch element
23 Sensor element
24 Cable
25 Electromagnetic compatibility
Figure 1: Discrete interface for critical timing signalling
Figure 2: Transmitter test circuit
Figure 3: Transmitter waveforms for critical timing signalling
Figure 4: Receiver test circuit
Figure 5: Receiver waveform for critical timing signalling
Figure 6: Discrete interface for non-critical timing signalling
Figure 7: Transmitter waveforms for non-critical timing signalling
Figure 8: Receiver waveform for non-critical timing signalling
Figure 9: Low power switching interface
Figure 10: Discrete interface for fault detecting, non-critical
           timing signalling
Figure 11: Switch element output waveforms
Figure 12: Sensor element operation
Figure 13: Example of interconnection of multiple sensor elements

Describes the electrical characteristics of four types of discrete signal interfaces for use in avionics systems.

DevelopmentNote
Supersedes DEFSTAN 00-18(PT4)/3(1990) (06/2003) This standard is obsolescent because it is no longer required for procurement of new equipment but is retained for maintenance purposes in support of existing in-service equipment. (01/2011)
DocumentType
Standard
Pages
38
PublisherName
UK Ministry of Defence Standards
Status
Withdrawn
Supersedes

STANAG 3837 : 0 AIRCRAFT STORES ELECTRICAL INTERCONNECTION SYSTEM
STANAG 3909 : 2017 DISCRETE SIGNAL INTERFACES

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