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



Reference EN 61158-2:2010
Title Industrial communication networks - Fieldbus specifications - Part 2: Physical layer specification and service definition
Project Number 22477
Abstract/Scope IEC 61158-2:2010(E) 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; - interoperability between devices at the physical layer. This fifth edition cancels and replaces the fourth edition published in 2007. This edition constitutes a technical revision. It includes the following significant technical changes with respect to the previous edition: - for Type 18, Table 157 reduced tolerance to 5%; - for Type 18, in removed minimum cable length; - for Type 18, in 32.5.4. and R.2.2 cable reference removed; - for Type 18, Table 160 and 161 terminating resistor value changed to 680 Ohm.


Current Stage code 6060
Current Stage code date 2010-10-08
Current Stage code deadline 2011-06-01
Deadline date for vote  


Mandate(s) M/490
Order Voucher  


IEC Technical Body IEC/SC 65C
Reference Document IEC 61158-2:2010 (EQV)
ICS 25.040 - Industrial automation systems
35.100 - Open systems interconnection (OSI)
35.240.50 - IT applications in industry
Keywords Industrial; Communication; Network; Fieldbus;Physical layer
Note Supersedes EN 61158-2:2008
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2010-10-08 2011-06-01 export to doc file  EN  DE
5099 2010-09-01 2010-09-30  
5060 2010-06-29 2010-07-13 export to doc file  EN
5020 2010-04-23 2010-06-25  
3090 2009-11-20 2010-03-31  
5060 2009-11-10 2009-11-24 export to doc file  EN
5020 2009-06-05 2009-11-06  
1090 2009-06-02 2009-06-05  

Implementation Dates

date of Ratification (DOR) (1) 2010-09-01
date of Availability (DAV) (2) 2010-10-08
date of Announcement (DOA) (3) 2010-12-01
date of Publication (DOP) (4) 2011-06-01
date of Withdrawal (DOW) (5) 2013-09-01


Supersedes EN 61158-2:2008
Superseded by FprEN 61158-2:2014
Normative reference (6) ANSI TIA/EIA-485-A:1998
ANSI TIA/EIA-232-F:1997
ANSI TIA/EIA-422-B:1994
ISO/IEC 7498 series
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
EN 60079-25:2010
IEC 60169-17
IEC 60189-1
IEC 60255-22-1
HD 60364-4-41:2007
corr. July 2007
HD 60364-5-54:2007
IEC 60529:2001
EN 60603-7-4:2010
IEC 60760:1989
IEC 60793 series
EN 60794-1-2
IEC 60807-3:1990
IEC 60874-10-1:1997
EN 61000-4-2:2009
EN 61000-4-3:2006
EN 61000-4-4:2004
EN 61131-2:2007
IEC 61156-1
EN 61158-4-2:2008
EN 61158-4-3
EN 61169-8
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.