IEC 60625-1:1993

FOREWORD
INTRODUCTION
SECTION 1: GENERAL
Clause
1 Scope and object
2 Definitions
3 Interface system overview
SECTION 2: FUNCTIONAL SPECIFICATIONS
4 Functional partition
5 Notation used to specify interface functions
6 Source handshake interface (SH) function
7 Acceptor handshake interface (AH) function
8 Talker interface (T) function (includes serial poll
   capabilities)
9 Listener interface (L) function
10 Service request interface (SR) function
11 Remote/local interface (RL) function
12 Parallel poll interface (PP) function
13 Device clear interface (DC) function
14 Device trigger interface (DT) function
15 Controller interface (C) function
16 Remote message coding and transfer
SECTION 3: ELECTRICAL SPECIFICATIONS
17 Application
18 Logical and electrical state relationships
19 Driver requirements
20 Receiver requirements
21 Composite device load requirements
22 Ground requirements
23 Cable characteristics
24 State transition time value
SECTION 4: MECHANICAL SPECIFICATIONS
25 Application
26 Connector type
27 Connector contact assignment
28 Device connector mounting
29 Cable assembly
SECTION 5: SYSTEM APPLICATIONS AND GUIDELINES FOR THE DESIGNER
30 System compatibility
31 Data rate consideration
32 Device capabilities
33 AND and OR logic operations
34 Address assignment
35 Typical combinations of interface functions
36 Unimplemented interface message handling
SECTION 6: SYSTEM REQUIREMENTS AND GUIDELINES FOR THE USER
37 System compatibility
38 System installation requirements
39 Address assignment
40 Cabling restrictions
41 Operational sequences
Tables
Figures
Annexes
A Typical instrument system
B Handshake process timing sequence
C Interface function allowable subset reference list
D Interface message reference list
E Multiline interface messages: ISO code representation
F Logic circuit implementation
G Parallel poll sequence
H Description of interface parameters on data sheets
J Recommended methods for improving the screening of
  cables that are specified in this part
K Information on the 25-pin connector
L Address switch labelling and interface status indicators

Applies to an interface system used to interconnect both programmable and non-programmable electronic measuring apparatus and accessories. Specifies device-independent requirements which need to be met in order to interconnect and communicate unambiguously. Permits apparatus with a wide range of capabilities to be connected to the system. Enables the interconnection of independently manufactured apparatus into a single functional system.