DEFSTAN 00-18(PT1)SEC4/3(1995) : 1995

Chapter one. General
1 Scope and purpose
2 Background
3 Related documents
4 Design opportunities
5 Discrete signal use
Chapter two. Interpretation of the standard
0 General
Introduction
1 Scope
2 Discrete signal types
3 Purpose
4 Related documents
5 Definitions
General requirements
6 Test and operating requirements
7 Forms of signals
8 Interface categories and constraints
Critical timing signalling
9 General
10 Transmitter
11 Receiver
12 Cable
Non-critical timing signalling
13 General
14 Transmitter
15 Receiver
16 Cable
Low power switching
17 General
18 Low power switch
19 Switching loads
20 Cable
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

Intended to provide users and potential users with an understanding of its background and characteristics and potential.