Table of Contents

FOREWORD
INTRODUCTION - Principles and rules followed
1 Scope
2 Terms and definitions
821-01 General concepts and terms
821-02 Signals
821-03 Train detection
821-04 Operation and detection of points and other
       rail-mounted equipment
821-05 Interlocking and signal box equipment
821-06 Block signalling system
821-07 Level crossing protection
821-08 Automatic train protection
821-09 Automatic train operation
821-10 Miscellaneous
821-11 Communication in transmission systems
821-12 Reliabilty, availability, maintainability
       and safety
INDEX

Abstract

Provides the general terminology relating to signalling and security apparatus for railways, as well as general terms pertaining to specific applications and associated technologies.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 1