0 Introduction
   0.1 General
   0.2 Nomenclature for references within this standard
1 Scope and object
   1.1 Overview
   1.2 Specifications
   1.3 Conformance
   1.4 Scope of type-specific clauses and subclauses
2 Normative references
3 Terms and definitions
   3.1 Reference model terms and definitions
   3.2 Service convention terms and definitions
   3.3 Common Data Link Service terms and definitions
   3.4 Type 1: Additional Data Link Service terms and definitions
   3.5 Type 2: Additional Data Link Service terms and definitions
   3.6 Type 3: Additional Data Link Service terms and definitions
   3.7 Type 4: Additional Data Link Service terms and definitions
   3.8 Type 6: Additional Data Link Service terms and definitions
   3.9 Type 7: Additional Data Link Service terms and definitions
   3.10 Type 8: Additional Data Link Service terms and definitions
4 Symbols and abbreviations
   4.1 Common symbols and abbreviations
   4.2 Type 1: Additional symbols and abbreviations
   4.3 Type 2: Additional symbols and abbreviations
   4.4 Type 3: Additional symbols and abbreviations
   4.5 Type 4: Additional symbols and abbreviations
   4.6 Type 6: Additional symbols and abbreviations
   4.7 Type 7: Additional symbols and abbreviations
   4.8 Type 8: Additional symbols and abbreviations
5 Conventions
   5.1 General conventions
   5.2 Type 1: Additional conventions
   5.3 Type 2: Additional conventions
   5.4 Type 3: Additional conventions
   5.5 Type 4: Additional conventions
   5.6 Type 6: Additional conventions
   5.7 Type 7: Additional conventions
   5.8 Type 8: Additional conventions
6 Type 1: Overview of the Data Link Service
   6.1 General
   6.2 Types and classes of Data Link Service
   6.3 Quality of Service (QoS) attributes common to multiple
         types of Data Link Service
7 Type 1: DL(SAP)-address, queue and buffer management Data
   Link Service
   7.1 Facilities of the DL(SAP)-address, queue and buffer
         management Data Link Service
   7.2 Model of the DL(SAP)-address, queue and buffer management
         Data Link Service
   7.3 Sequence of primitives at one DLSAP
   7.4 DL(SAP)-address, queue and buffer management facilities
8 Type 1: Connection-mode Data Link Service
   8.1 Facilities of the connection-mode Data Link Service
   8.2 Model of the connection-mode Data Link Service
   8.3 Quality of connection-mode service
   8.4 Sequence of primitives
   8.5 Connection establishment phase
   8.6 Connection release phase
   8.7 Data transfer phase
9 Type 1: Connectionless-mode Data Link Service
   9.1 Facilities of the connectionless-mode Data Link Service
   9.2 Model of the connectionless-mode Data Link Service
   9.3 Quality of connectionless-mode service
   9.4 Sequence of primitives
   9.5 Connectionless-mode functions
10 Type 1: Time and scheduling guidance Data Link Service
   10.1 Facilities and classes of the time and scheduling guidance
         Data Link Service
   10.2 Model of the time and scheduling guidance Data Link Service
   10.3 Quality of scheduling guidance service
   10.4 Sequence of primitives at one DLE
   10.5 Scheduling guidance functions
11 Types 1 and 4: DL-management Service
   11.1 Scope and inheritance
   11.2 Facilities of the DL-management service
   11.3 Model of the DL-management service
   11.4 Constraints on sequence of primitives
   11.5 Set
   11.6 Get
   11.7 Action
   11.8 Event
12 Type 2: Connection-mode and connectionless-mode Data Link Service
   12.1 Overview
   12.2 Facilities of the Data Link Service
   12.3 Model of the Data Link Service
   12.4 Sequence of primitives
   12.5 Connection-mode data transfer
   12.6 Connectionless-mode data transfer
   12.7 Queue maintenance
   12.8 Tag filter
13 Type 2: DL-management Services
   13.1 Sequence of primitives
   13.2 Link synchronization
   13.3 Synchronized parameter change
   13.4 Event reports
   13.5 Bad FCS
   13.6 Current moderator
   13.7 Enable moderator
   13.8 Power-up and online
   13.9 Listen only
   13.10 Time distribution
14 Type 3: Connectionless-mode Data Link Service
   14.1 General
   14.2 Model of the connectionless-mode Data Link Service
   14.3 Sequence of primitives
   14.4 Detailed description of DL services
15 Type 3: DL-management Service
   15.1 General
   15.2 Facilities of the DLMS
   15.3 Services of the DL-management
   15.4 Overview of interactions
   15.5 Detailed specification of services and interactions
16 Type 4: Data Link Service and concepts
   16.1 Overview
   16.2 Types and classes of Data Link Service
   16.3 Functional classes
   16.4 Facilities of the connectionless-mode Data Link Service
   16.5 Model of the connectionless-mode Data Link Service
   16.6 Sequence of primitives
   16.7 Connectionless-mode data transfer functions
17 Type 6: Data Link Service and concepts
   17.1 Fundamental concepts
   17.2 Quality of service (QoS)
   17.3 Connection mode services
   17.4 Connectionless management service
   17.5 Real-time services
18 Type 7: Data Link services and concepts
   18.1 Field of application, object
   18.2 General description of services
   18.3 Sequences of primitives
   18.4 Buffer writing
   18.5 Buffer reading
   18.6 Buffer transfer
   18.7 Explicit request for buffer transfer
   18.8 Unacknowledged message transfer
   18.9 Acknowledged message transfer
19 Type 8: Data Link Service and concepts
   19.1 Overview
   19.2 Sequence of primitives
   19.3 Connection-mode Data Link services
20 Type 8: DL-management Service
   20.1 Scope
   20.2 Facilities of the DL-management service
   20.3 Overview of services
   20.4 Overview of interactions
   20.5 Detailed specification of services and interactions
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications
Bibliography
Figures
Tables