BS 5554:1978

National foreword
Cooperating organizations
1. Object
2. Scope
3. Terminology
3.1 Interpretation of this publication
3.2 Definition of "module" and "controller"
4. Mechanical characteristics
4.1 The crate
4.2 Plug-in units
4.3 Adaptor for NIM units
4.4 The Dataway
5. Use of the Dataway lines
5.1 Commands
5.2 Strobe signals (S1 and S2)
5.3 Data
5.4 Status information
5.5 Common controls (Z,C,I)
5.6 Non-standard connections (P1 to P7)
5.7 Power lines
6. Dataway commands
6.1 Read commands: Function codes F(0) to F(7)
6.2 Control commands: Function codes F(8) to F(15)
6.3 Write commands: Function codes F(16) to F(23)
6.4 Control commands: Function codes F(24) to F(31)
6.5 External representation of the command
7. Signal standards
7.1 Digital signals on the Dataway
7.2 Other digital signals
7.3 Analogue signals
8. Power line standards
9. Environmental conditions of use
Tables
I. Standard Dataway usage
II. Contact allocation at a normal station
III. Contact allocation at the control station
IV. The function codes
V. Voltage levels of Dataway signals
VI. Standards for signal currents through Dataway
     connectors and for pull-up current sources
VII. Current standards for patch contacts
VIII.Unterminated signals
IX. Terminated signals
X. Power line standards
Figures
1. Unventilated crate - front view
2. Plan view of lower guides in crate
3. Crate, side view, section d-d, Figure 1
4. Plug-in unit, side and rear views
5. Dataway connector - plug - socket
6. Ventilated crate - front view
7. Adaptor for NIM units
8. Typical printed wiring card
9. Timing of a Dataway command operation
10. Timing of a Dataway unaddressed operation
National appendices
A. Extract from IEC 297: 1975
B. Extract from IEC 482: 1975