EN 61158-2:2008

SLOVENSKI STANDARD
01-junij-2008
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SIST EN 61158-2:2004
SIST EN 61491:2001
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Industrial communication networks - Fieldbus specifications -- Part 2: Physical layer
specification and service definition
Industrielle Kommunikationsnetze - Feldbusse - Teil 2: Spezifikation und
Dienstfestlegungen des Physical Layer (Bitübertragungsschicht)
Réseaux de communication industriels - Spécifications des bus de terrain - Partie 2:
Spécification des couches physiques et définition des services
Ta slovenski standard je istoveten z: EN 61158-2:2008
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.100.10 )L]LþQLVORM Physical layer
35.110 Omreževanje Networking
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61158-2
NORME EUROPÉENNE
February 2008
EUROPÄISCHE NORM
ICS 25.040; 35.100; 35.240.50 Supersedes EN 61158-2:2004 and partially supersedes EN 61491:1998

English version
Industrial communication networks -
Fieldbus specifications -
Part 2: Physical layer specification and service definition
(IEC 61158-2:2007)
Réseaux de communication industriels -  Industrielle Kommunikationsnetze -
Spécifications des bus de terrain - Feldbusse -
Partie 2: Spécification des couches Teil 2: Spezifikation und
physiques et définition des services Dienstfestlegungen des Physical Layer
(CEI 61158-2:2007) (Bitübertragungsschicht)
(IEC 61158-2:2007)
This European Standard was approved by CENELEC on 2008-02-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61158-2:2008 E
Foreword
The text of document 65C/472/FDIS, future edition 4 of IEC 61158-2, prepared by SC 65C, Industrial
networks, of IEC TC 65, Industrial-process measurement, control and automation, was submitted to the
IEC-CENELEC parallel vote and was approved by CENELEC as EN 61158-2 on 2008-02-01.
This European Standard supersedes EN 61158-2:2004. Together with its companion parts for Type 16, it
also partially replaces EN 61491:1998 which is at present being revised (to be issued as a Technical
Report).
With respect to EN 61158-2:2004 the following changes were made:
– deletion of Type 6 fieldbus for lack of market relevance;
– addition of new fieldbus types;
– generalization of the seldom-used Type 1 radio to a more useful form.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2008-11-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2011-02-01
with the EN have to be withdrawn
NOTE  Use of some of the associated protocol types is restricted by their intellectual-property-right holders. In all cases, the
commitment to limited release of intellectual-property-rights made by the holders of those rights permits a particular data-link layer
protocol type to be used with physical layer and application layer protocols in type combinations as specified explicitly in the
EN 61784 series. Use of the various protocol types in other combinations may require permission of their respective
intellectual-property-right holders.
IEC and CENELEC draw attention to the fact that it is claimed that compliance with this standard may involve the use of patents as
follows, where the [xx] notation indicates the holder of the patent right:
Type 2 (Subclauses 5.3, 9.3, 10.3, Clauses 17 through 20, Annex F through Annex H):
5,396,197 [AB] Network Node TAP
IEC and CENELEC take no position concerning the evidence, validity and scope of these patent rights.
The holders of these patent rights have assured IEC that they are willing to negotiate licences under reasonable and non-
discriminatory terms and conditions with applicants throughout the world. In this respect, the statement of the holders of these
patent rights are registered with IEC. Information may be obtained from:
[AB]: Rockwell Technologies, LLC
Allen-Bradley Co, LLC
1201 So. Second Street
Milwaukee, WI 53204
USA
Attention: Intellectual Property Dept.
Attention is drawn to the possibility that some of the elements of this standard may be the subject of patent rights other than those
identified above. IEC and CENELEC shall not be held responsible for identifying any or all such patent rights.
Annex ZA has been added by CENELEC.
__________
- 3 - EN 61158-2:2008
Endorsement notice
The text of the International Standard IEC 61158-2:2007 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60079-0 NOTE Harmonized as EN 60079-0:2006 (modified).
IEC 60079-27 NOTE Harmonized as EN 60079-27:2006 (not modified).
IEC 60227-5 NOTE Harmonized as HD 21.5 S3:1994 (modified).
IEC 60875-1 NOTE Harmonized as EN 60875-1:2001 (not modified).
IEC 60947-5-2 NOTE Harmonized as EN 60947-5-2:2007 (not modified).
IEC 61300-3-4 NOTE Harmonized as EN 61300-3-4:2001 (not modified).
IEC 61491 NOTE Harmonized as EN 61491:1998 (modified).
IEC 61596 NOTE Harmonized as EN 61596:1997 (not modified).
IEC 61784-1 NOTE Harmonized as EN 61784-1:2008 (not modified).
__________
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
1)
IEC 60050-731 - International Electrotechnical Vocabulary - -
(IEV) -
Chapter 731: Optical fibre communication

1) 2)
IEC 60079-11 - Explosive atmospheres - EN 60079-11 2007
Part 11: Equipment protection by intrinsic
safety "i"
1) 2)
IEC 60079-14 - Explosive atmospheres - EN 60079-14 2003
Part 14: Electrical installations design,
selection and erection
1) 2)
IEC 60079-25 - Electrical apparatus for explosive gas EN 60079-25 2004
atmospheres - + corr. April 2006
Part 25: Intrinsically safe systems

1)
IEC 60096-1 - Radio-frequency cables - - -
Part 1: General requirements and measuring
methods
1) 3)
IEC 60169-8 - Radio-frequency connectors - - -
Part 8: R.F. coaxial connectors with inner
diameter of outer conductor 6,5 mm (0,256 in)
with bayonet lock - Characteristic impedance
50 ohms (Type BNC)
1)
IEC 60169-17 - Radio-frequency connectors - - -
Part 17: R.F. coaxial connectors with inner
diameter of outer conductor 6,5mm (0,256 in)
with screw coupling - Characteristic
impedance 50 ohms (type TNC)
IEC 60189-1 1986 Low-frequency cables and wires with PVC - -
insulation and PVC sheath -
Part 1: General test and measuring methods

1)
Undated reference.
2)
Valid edition at date of issue.
3)
IEC 60169-8:1986 is superseded by IEC 61169-8:2007, which is harmonized as EN 61169-8:2007.

- 5 - EN 61158-2:2008
Publication Year Title EN/HD Year
4)
IEC 60255-22-1 1988 Electrical relays - - -
Part 22-1: Electrical disturbance tests for
measuring relays and protection equipment -
1 MHz burst disturbance tests
1) 2)
IEC 60364-4-41 - Low-voltage electrical installations - HD 60364-4-41 2007
(mod) Part 4-41: Protection for safety - Protection + corr. July 2007
against electric shock
1) 2)
IEC 60364-5-54 - Electrical installations of buildings - HD 60364-5-54 2007
(mod) Part 5-54: Selection and erection of electrical
equipment - Earthing arrangements,
protective conductors and protective bonding
conductors
1) 2)
IEC 60529 - Degrees of protection provided by EN 60529 1991
enclosures (IP Code) + corr. May 1993

1) 2)
IEC 60603-7 - Connectors for frequencies below 3 MHz for EN 60603-7 1997
use with printed boards -
Part 7: Detail specification for connectors,
8-way, including fixed and free connectors
with common mating features, with assessed
quality
1)
IEC 60760 - Flat, quick-connect terminations - -

IEC 60793 Series Optical fibres EN 60793 Series
(mod)
1) 2)
IEC 60794-1-2 - Optical fibre cables - EN 60794-1-2 2003
Part 1-2: Generic specification - Basic optical
cable test procedures
1)
IEC 60807-3 - Rectangular connectors for frequencies - -
below 3 MHz -
Part 3: Detail specification for a range of
connectors with trapezoidal shaped metal
shells and round contacts - Removable crimp
types with closed crimp barrels, rear
insertion/rear extraction
1)
IEC 60874-10-1 - Connectors for optical fibres and cables - - -
Part 10-1: Detail specification for fibre optic
connector type BFOC/2,5 terminated to
multimode fibre type A1
1) 2)
IEC 61000-4-2 - Electromagnetic compatibility (EMC) - EN 61000-4-2 1995
Part 4-2: Testing and measurement
techniques - Electrostatic discharge immunity
test
1) 2)
IEC 61000-4-3 - Electromagnetic compatibility (EMC) - EN 61000-4-3 2006
Part 4-3: Testing and measurement
techniques - Radiated, radio-frequency,
electromagnetic field immunity test

4)
EN 60255-22-1:2008 is based on IEC 60255-22-1:2007.

Publication Year Title EN/HD Year
1) 2)
IEC 61000-4-4 - Electromagnetic compatibility (EMC) - EN 61000-4-4 2004
Part 4-4: Testing and measurement
techniques - Electrical fast transient/burst
immunity test
1) 2)
IEC 61131-2 - Programmable controllers - EN 61131-2 2007
Part 2: Equipment requirements and tests

1)
IEC 61156-1 - Multicore and symmetrical pair/quad cables - -
for digital communications -
Part 1: Generic specification
1) 2)
IEC 61158-4-2 - Industrial communication networks - Fieldbus EN 61158-4-2 2008
specifications -
Part 4-2: Data-link layer protocol
specification - Type 2 elements

1) 2)
IEC 61158-4-3 - Industrial communication networks - Fieldbus EN 61158-4-3 2008
specifications -
Part 4-3: Data-link layer protocol
specification - Type 3 elements

1) 2)
IEC 61754-2 - Fibre optic connector interfaces - EN 61754-2 1997
Part 2: Type BFOC/2,5 connector family

1) 2)
IEC 61754-13 - Fibre optic connector interfaces - EN 61754-13 2006
Part 13: Type FC-PC connector
1) 2)
IEC 61754-22 - Fibre optic connector interfaces - EN 61754-22 2005
Part 22: Type F-SMA connector family

ISO/IEC 7498 Series Information technology - Open systems EN ISO/IEC 7498 Series
interconnection - Basic Reference Model: The
Basic Model
1)
ISO/IEC 8482 - Information technology - Telecommunications - -
and information exchange between systems -
Twisted pair multipoint interconnections

1)
ISO/IEC 8802-3 - Information technology - Telecommunications - -
and information exchange between systems -
Local and metropolitan area networks -
Specific requirements -
Part 3: Carrier sense multiple access with
collision detection (CSMA/CD) access
method and physical layer specifications

1) 2)
ISO/IEC 9314-1 - Information Processing Systems - Fibre EN 29314-1 1993
distributed data interface (FDDI) -
Part 1: Token Ring physical layer protocol
(PHY)
1)
ISO/IEC 10731 - Information technology - Open Systems - -
Interconnection - Basic reference model -
Conventions for the definition of OSI services

1)
ANSI TIA/EIA-232-F - Interface between data terminal equipment - -
and data circuit - Terminating equipment
employing serial binary data interchange

1)
ANSI TIA/EIA-422-B - Electrical characteristics of balanced voltage - -
digital interface circuits
- 7 - EN 61158-2:2008
Publication Year Title EN/HD Year
1)
ANSI TIA/EIA-485-A - Electrical characteristics of generators and - -
receivers for use in balanced digital multipoint
systems
1)
ANSI TIA/EIA-644-A - Electrical Characteristics of Low Voltage - -
Differential Signaling (LVDS) Interface
Circuits
IEC 61158-2
Edition 4.0 2007-12
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 2: Physical layer specification and service definition

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XP
ICS 25.040; 35.100; 35.240.50 ISBN 2-8318-9447-6

– 2 – 61158-2 © IEC:2007(E)
CONTENTS
FOREWORD.19
0 Introduction .21
0.1 General .21
0.2 Physical layer overview .21
0.3 Document overview .21
0.4 Major physical layer variations specified in this standard.22
1 Scope.25
2 Normative references .25
3 Terms and definitions .28
3.1 Common terms and definitions .28
3.2 Type 1: Terms and definitions .32
3.3 Type 2: Terms and definitions .35
3.4 Type 3: Terms and definitions .38
3.5 Type 4: Terms and definitions .41
3.6 Type 6: This subclause has been removed .42
3.7 Type 8: Terms and definitions .42
3.8 Type 12: Terms and definitions .45
3.9 Type 16: Terms and definitions .46
3.10 Type 18: Terms and definitions .49
4 Symbols and abbreviations.51
4.1 Symbols .51
4.2 Abbreviations .55
5 DLL – PhL interface.62
5.1 General .62
5.2 Type 1: Required services .62
5.3 Type 2: Required services .64
5.4 Type 3: Required services .67
5.5 Type 4: Required services .68
5.6 Type 6: This subclause has been removed .70
5.7 Type 8: Required services .70
5.8 Type 12: Required services .78
5.9 Type 16: Required services .80
5.10 Type 18: Required services .81
6 Systems management – PhL interface.83
6.1 General .83
6.2 Type 1: Systems management – PhL interface .83
6.3 Type 3: Systems management – PhL interface .85
6.4 Type 4: Systems management – PhL interface .91
6.5 Type 6: This subclause has been removed .91
6.6 Type 8: Systems management – PhL interface .91
6.7 Type 12: Systems management – PhL interface .96
6.8 Type 18: Systems management – PhL interface .96
7 DCE independent sublayer (DIS) .97
7.1 General .97
7.2 Type 1: DIS .97
7.3 Type 3: DIS .97

61158-2 © IEC:2007(E) – 3 –
7.4 Type 6: This subclause has been removed .97
7.5 Type 8: DIS .98
7.6 Type 12: DIS .99
8 DTE – DCE interface and MIS-specific functions .99
8.1 General .99
8.2 Type 1: DTE – DCE interface .100
8.3 Type 3: DTE – DCE interface .110
8.4 Type 8: MIS – MDS interface.111
8.5 Type 12: DTE – DCE interface .120
9 Medium dependent sublayer (MDS) .120
9.1 General .120
9.2 Type 1: MDS: Wire and optical media. 120
9.3 Type 1: MDS: Radio media.123
9.4 Type 2: MDS: Wire and optical media. 123
9.5 Type 3: MDS: Wire and optical media. 125
9.6 Type 4: MDS: Wire medium .125
9.7 Type 6: This subclause has been removed .130
9.8 Type 8: MDS: Wire and optical media. 130
9.9 Type 12: MDS: Wire media.137
9.10 Type 16: MDS: Optical media .139
9.11 Type 18: MDS: Wire media.140
10 MDS — MAU interface.141
10.1 General .141
10.2 Type 1: MDS – MAU interface: Wire and optical media. 141
10.3 Type 1: MDS – MAU interface: Radio signaling .143
10.4 Type 2: MDS – MAU interface: Wire and optical media. 143
10.5 Type 3: MDS – MAU interface: Wire and optical media. 145
10.6 Type 8: MDS – MAU interface: Wire and optical media. 145
10.7 Type 18: MDS – MAU interface: Wire media .147
11 Types 1 and 7: Medium attachment unit: voltage mode, linear-bus-topology 150 Ω
twisted-pair wire medium .149
11.1 General .149
11.2 Bit-rate-dependent quantities .149
11.3 Network specifications. 150
11.4 MAU transmit circuit specification.152
11.5 MAU receive circuit specification .156
11.6 Jabber inhibit .158
11.7 Power distribution.158
11.8 Medium specifications .161
12 Types 1 and 3: Medium attachment unit: 31,25 kbit/s, voltage-mode with low-power
option, bus- and tree-topology, 100 Ω wire medium .164
12.1 General .164
12.2 Transmitted bit rate .164
12.3 Network specifications. 164
12.4 MAU transmit circuit specification.167
12.5 MAU receive circuit specification .170
12.6 Jabber inhibit .171
12.7 Power distribution.171
12.8 Medium specifications .177

– 4 – 61158-2 © IEC:2007(E)
12.9 Intrinsic safety.180
12.10 Galvanic isolators.181
13 Type 1: Medium attachment unit: current mode, twisted-pair wire medium. 181
13.1 General .181
13.2 Transmitted bit rate .181
13.3 Network specifications. 181
13.4 MAU transmit circuit specification.183
13.5 MAU receive circuit specification .185
13.6 Jabber inhibit .187
13.7 Power distribution.188
13.8 Medium specifications .189
14 Type 1: Medium attachment unit: current mode (1 A), twisted-pair wire medium .191
14.1 General .191
14.2 Transmitted bit rate .191
14.3 Network specifications. 191
14.4 MAU transmit circuit specification.193
14.5 MAU receive circuit specification .195
14.6 Jabber inhibit .196
14.7 Power distribution.196
14.8 Medium specifications .198
15 Types 1 and 7: Medium attachment unit: dual-fiber optical media . 199
15.1 General .199
15.2 Bit-rate-dependent quantities .199
15.3 Network specifications. 200
15.4 MAU transmit circuit specifications .201
15.5 MAU receive circuit specifications .202
15.6 Jabber inhibit .203
15.7 Medium specifications .204
16 Type 1: Medium attachment unit: 31,25 kbit/s, single-fiber optical medium . 206
16.1 General .206
16.2 Transmitted bit rate .206
16.3 Network specifications. 206
16.4 MAU transmit circuit specifications .206
16.5 MAU receive circuit specifications .207
16.6 Jabber inhibit .207
16.7 Medium specifications .208
17 Type 1: Medium attachment unit: radio signaling .210
17.1 General .210
17.2 Transmit signaling rate .210
17.3 Modulation .210
17.4 Network specification .212
17.5 Antennas.216
17.6 Jabber inhibit .216
17.7 Common air interface .217
18 Type 2: Medium attachment unit: 5 Mbit/s, voltage-mode, coaxial wire medium .221
18.1 General .221
18.2 Transceiver: 5 Mbit/s, voltage-mode, coaxial wire. 221
18.3 Transformer 5 Mbit/s, voltage-mode, coaxial wire. 226

61158-2 © IEC:2007(E) – 5 –
18.4 Connector 5 Mbit/s, voltage-mode, coaxial wire medium. 227
18.5 Topology 5 Mbit/s, voltage-mode, coaxial wire medium . 227
18.6 Taps 5 Mbit/s, voltage-mode, coaxial wire medium . 229
18.7 Trunk 5 Mbit/s, voltage-mode, coaxial wire medium. 231
19 Type 2: Medium attachment unit: 5 Mbit/s, optical medium . 232
19.1 General .232
19.2 Transceiver 5 Mbit/s, optical medium.232
19.3 Topology 5 Mbit/s, optical medium .233
19.4 Trunk fiber 5 Mbit/s, optical medium .233
19.5 Trunk connectors 5 Mbit/s, optical medium .234
19.6 Fiber specifications 5 Mbit/s, optical medium.234
20 Type 2: Medium attachment unit: network access port (NAP) . 237
20.1 General .237
20.2 Signaling .238
20.3 Transceiver .239
20.4 Connector .239
20.5 Cable .239
21 Type 3: Medium attachment unit: synchronous transmission, 31,25 kbit/s, voltage
mode, wire medium .241
21.1 General .241
21.2 Transmitted bit rate .241
21.3 Network specifications. 241
21.4 Transmit circuit specification for 31,25 kbit/s voltage-mode MAU. 244
21.5 Receive circuit specification for 31,25 kbit/s voltage-mode MAU. 247
21.6 Jabber inhibit .247
21.7 Power distribution.248
21.8 Medium specifications .250
21.9 Intrinsic safety.252
21.10 Galvanic Isolators.252
21.11 Coupling elements.252
21.12 Power supply.254
22 Type 3: Medium attachment unit: asynchronous transmission, wire medium . 259
22.1 Medium attachment unit for non intrinsic safety . 259
22.2 Medium attachment unit for intrinsic safety.264
23 Type 3: Medium attachment unit: asynchronous transmission, optical medium . 276
23.1 Characteristic features of optical data transmission. 276
23.2 Basic characteristics of an optical data transmission medium . 277
23.3 Optical network .277
23.4 Standard optical link.278
23.5 Network structures built from a combination of standard optical links . 278
23.6 Bit coding .278
23.7 Optical signal level .278
23.8 Temporal signal distortion .281
23.9 Bit error rate.285
23.10 Connectors for fiber optic cable.285
23.11 Redundancy in optical transmission networks. 285
24 Type 4: Medium attachment unit: RS-485 .285
24.1 General .285

– 6 – 61158-2 © IEC:2007(E)
24.2 Overview of the services .285
24.3 Description of the services . 286
24.4 Network.286
24.5 Electrical specification.286
24.6 Time response .286
24.7 Interface to the transmission medium .286
24.8 Specification of the transmission medium .287
25 Type 4: Medium attachment unit: RS-232 .288
25.1 General .288
25.2 Overview of the services .288
25.3 Description of the services . 288
26 Type 6: This clause has been removed.288
27 Type 8: Medium attachment unit: twisted-pair wire medium . 289
27.1 MAU signals .289
27.2 Transmission bit rate dependent quantities.289
27.3 Network.290
27.4 Electrical specification.290
27.5 Time response .290
27.6 Interface to the transmission medium .290
27.7 Specification of the transmission medium .291
28 Type 8: Medium attachment unit: optical media .294
28.1 General .294
28.2 Transmission bit rate dependent quantities.294
28.3 Network topology.294
28.4 Transmit circuit specifications .295
28.5 Receive circuit specifications.296
28.6 Specification of the transmission medium .297
29 Type 12: Medium attachment unit: electrical medium. 301
29.1 Electrical characteristics.301
29.2 Medium specifications .301
29.3 Transmission method .301
30 Type 16: Medium attachment unit: optical fiber medium at 2, 4, 8 and 16 Mbit/s .303
30.1 Structure of the transmission lines.303
30.2 Time performance of bit transmission .303
30.3 Connection to the optical fiber .310
31 Type 18: Medium attachment unit: basic medium.317
31.1 General .317
31.2 Data signal encoding.317
31.3 Signal loading .317
31.4 Signal conveyance requirements .317
31.5 Media .318
31.6 Endpoint and branch trunk cable connectors .320
31.7 Recommended type 18-PhL-B MAU circuitry .320
32 Type 18: Medium attachment unit: powered medium.321
32.1 General .321
32.2 Data signal encoding.321
32.3 Signal loading .321
32.4 Signal conveyance requirements .321

61158-2 © IEC:2007(E) – 7 –
32.5 Media .322
32.6 Endpoint and branch trunk cable connectors .325
32.7 Embedded power distribution . 325
32.8 Recommended type 18-PhL-P MAU circuitry .327
Annex A (normative) Type 1: Connector specification .329
A.1 Internal connector for wire medium.329
A.2 External connectors for wire medium.330
Annex B (informative) Types 1 and 3: Cable specifications and trunk and spur lengths
for the 31,25 kbit/s voltage-mode MAU .337
B.1 Cable description and specifications.337
B.2 Typical trunk and spur
...