IEC 61158-2:2014

FOREWORD
0 Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 DLL - PhL interface
6 Systems management - PhL interface
7 DCE independent sublayer (DIS)
8 DTE - DCE interface and MIS-specific functions
9 Medium dependent sublayer (MDS)
10 MDS - MAU interface
11 Types 1 and 7: Medium attachment unit: voltage mode,
   linear-bus-topology 150 Omega twisted-pair wire medium
12 Types 1 and 3: Medium attachment unit: 31,25 kbit/s,
   voltage-mode with low-power option, bus- and tree-topology,
   100 Omega wire medium
13 Type 1: Medium attachment unit: current mode,
   twisted-pair wire medium
14 Type 1: Medium attachment unit: current mode
   (1 A), twisted-pair wire medium
15 Types 1 and 7: Medium attachment unit:
   dual-fiber optical media
16 Type 1: Medium attachment unit: 31,25 kbit/s,
   single-fiber optical medium
17 Void
18 Type 2: Medium attachment unit: 5 Mbit/s, voltage-mode,
   coaxial wire medium
19 Type 2: Medium attachment unit: 5 Mbit/s, optical medium
20 Type 2: Medium attachment unit: network access port (NAP)
21 Type 3: Medium attachment unit: synchronous transmission,
   31,25 kbit/s, voltage mode, wire medium
22 Type 3: Medium attachment unit: asynchronous transmission,
   wire medium
23 Type 3: Medium attachment unit: asynchronous transmission,
   optical medium
24 Type 4: Medium attachment unit: RS-485
25 Void
26 Void
27 Type 8: Medium attachment unit: twisted-pair wire medium
28 Type 8: Medium attachment unit: optical media
29 Type 12: Medium attachment unit: electrical medium
30 Type 16: Medium attachment unit: optical fiber medium at
   2, 4, 8 and 16 Mbit/s
31 Type 18: Medium attachment unit: basic medium
32 Type 18: Medium attachment unit: powered medium
33 Type 24: Medium attachment unit: twisted-pair wire medium
34 Type 20: Medium attachment unit: FSK medium
Annex A (normative) - Type 1: Connector specification
Annex B (informative) - Types 1 and 3: Cable specifications and
        trunk and spur lengths for the 31,25 kbit/s
        voltage-mode MAU
Annex C (informative) - Types 1 and 7: Optical passive stars
Annex D (informative) - Types 1 and 7: Star topology
Annex E (informative) - Type 1: Alternate fibers
Annex F (normative) - Type 2: Connector specification
Annex G (normative) - Type 2: Repeater machine sublayers
        (RM, RRM) and redundant PhLs
Annex H (informative) - Type 2: Reference design examples
Annex I (normative) - Type 3: Connector specification
Annex J (normative) - Type 3: Redundancy of PhL and medium
Annex K (normative) - Type 3: Optical network topology
Annex L (informative) - Type 3: Reference design examples
        for asynchronous transmission, wire medium,
        intrinsically safe
Annex M (normative) - Type 8: Connector specification
Annex N (normative) - Type 16: Connector specification
Annex O (normative) - Type 16: Optical network topology
Annex P (informative) - Type 16: Reference design example
Annex Q (normative) - Type 18: Connector specification
Annex R (normative) - Type 18: Media cable specifications
Annex S (normative) - Type 24: Connector specification
Annex T (informative) - Type 20: Network topology, cable
        characteristics and lengths, power distribution
        through barriers, and shielding and grounding
Bibliography

IEC 61158-2:2014 specifies the requirements for fieldbus component parts. It also specifies the media and network configuration requirements necessary to ensure agreed levels of data integrity before data-link layer error checking and interoperability between devices at the physical layer. The fieldbus physical layer conforms to layer 1 of the OSI 7-layer model as defined by ISO 7498 with the exception that, for some types, frame delimiters are in the physical layer while for other types they are in the data-link layer. This sixth edition cancels and replaces the fifth edition published in 2010. It constitutes a technical revision. This edition includes the following changes:
- new Type 20 specification;
- new Type 24 specification;
- RS232 media specification for Type 4 removed.