International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference EN 61158-2:2008
Title Industrial communication networks - Fieldbus specifications - Part 2: Physical layer specification and service definition
Project Number 20741
Abstract/Scope It 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. It includes the following significant technical changes with respect to the previous edition deletion of the former 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.


Current Stage code 6060
Current Stage code date 2008-02-20
Current Stage code deadline 2008-11-01
Deadline date for vote  


Mandate(s) M/490
Order Voucher  


IEC Technical Body IEC/SC 65C
Reference Document IEC 61158-2:2007 (EQV)
ICS 25.040 - Industrial automation systems
35.100 - Open systems interconnection (OSI)
35.240.50 - IT applications in industry
Keywords Industrial; Communication; Fieldbus; Physical layer
Note This European Standard together with EN 61158-3-16, EN 61158-4-16, EN 61158-5-16, EN 61158-6-16, EN 61784-1, EN 61800-7-1, EN 61800-7-204, EN 61800-7-304 and TR 61491 (published in January 2010 in IEC) also supersede EN 61491:1998 * Superseded by EN 61158-2:2010
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2008-02-20 2008-11-01 export to doc file  EN  DE
5099 2008-02-01 2008-04-01  
5060 2007-10-01 2007-10-15 export to doc file  EN
5020 2007-07-27 2007-09-28  
3090 2006-12-15 2007-04-30  
5060 2006-11-28 2006-12-12 export to doc file  EN
5020 2006-06-23 2006-11-24  
1090 2006-06-20 2006-06-23  

Implementation Dates

date of Ratification (DOR) (1) 2008-02-01
date of Availability (DAV) (2) 2008-02-20
date of Announcement (DOA) (3) 2008-05-01
date of Publication (DOP) (4) 2008-11-01
date of Withdrawal (DOW) (5) 2011-02-01


Supersedes EN 61158-2:2004
EN 61491:1998
Superseded by EN 61158-2:2010
Normative reference (6) ANSI TIA/EIA-232-F:1997
ANSI TIA/EIA-422-B:1994
ANSI TIA/EIA-485-A:1998
ISO/IEC 7498-1:1994
ISO/IEC 8482:1993
ISO/IEC 8802-3:2000
ISO/IEC 9314-1:1989
ISO/IEC 10731:1994
IEC 60050-731:1991
EN 60079-11:2007
EN 60079-14:2008
EN 60079-25:2004
corr. April 2006
IEC 60096-1:1986
IEC 60169-8:1978
IEC 60169-17:1980
IEC 60189-1:1986
IEC 60255-22-1:1988
HD 60364-4-41:2007
corr. July 2007
HD 60364-5-54:2007
EN 60529:1991
corr. May 1993
EN 60603-7:1997
IEC 60760:1989
IEC 60793-1:1992
EN 60794-1-2:2003
IEC 60807-3:1990
IEC 60874-10-1:1997
EN 61000-4-2:1995
EN 61000-4-3:2006
EN 61000-4-4:2004
EN 61131-2:2007
IEC 61156-1:2002
EN 61158-4-2:2008
EN 61158-4-3:2008
EN 61754-2:1997
EN 61754-13:2006
EN 61754-22:2005

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.