NF EN 61107 : 1996

Introduction
1. General
1.1 Scope
1.2 Normative references
2. Definitions
3. Physical properties
3.1 Electrical interface
3.2 Optical interface
4. Character transmission
4.1 Type of transmission
4.2 Transmission speed
4.3 Signal quality
4.4 Character format
4.5 Character code
4.6 Character security
5. Data transmission protocol
5.1 General
5.2 Calculation of the block check character
5.3 Message definitions
5.4 Communication modes
5.5 Syntax diagrams
5.6 Dataset structure
Figures
1 Circuit diagram
2 Construction of the reading head
3 Characteristic data of the magnet
4 View into optical port
5 Test arrangement for the transmitter
6 Test arrangement for the receiver
7 Electrical characteristics
8 Setting up a block check character (example
       according to ISO 1155)
C.1 Example of channel types
C.2 Register coding diagram
Annexes
A. Flow chart for direct local data exchange protocol,
     mode C
B. Provision for battery-operated tariff devices
C. Formatted codes

Presents hardware and protocol specifications for local systems, while specifications for a remote system falls within the scope of another document. Covers direct local systems in which the hand-held unit (HHU) is connected to one tariff device only at a time. Prescribes the software and hardware preconditions which permit an exchange of data between an HHU and a tariff device. Coverage includes: definitions, physical properties, character transmission and data transmission protocol. Also includes detailed annexes.