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



Reference EN 62056-42:2002
Title Electricity metering - Data exchange for meter reading, tariff and load control - Part 42: Physical layer services and procedures for connection-oriented asynchronous data exchange
Project Number 13667
Abstract/Scope Specifies the physical layer services and protocols within the Companion Specification for Energy Metering (COSEM) three-layer connection oriented profile for asynchronous data communication.


Current Stage code 6060
Current Stage code date 2002-06-21
Current Stage code deadline 2003-01-01
Deadline date for vote  


Mandate(s) M/441; M/490
Order Voucher  


IEC Technical Body IEC/TC 13
Reference Document IEC 62056-42:2002 (EQV)
ICS 35.100.10 - Physical layer
91.140.50 - Electricity supply systems
Keywords Metering; Meter reading; Tariff; Load control; Asynchronous data exchange
Note EN following parallel vote
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2002-06-21 2003-01-01 export to doc file  EN  FR
5099 2002-03-01 2002-07-01  
5061 2002-01-31 2002-03-01  
5020 2001-10-05 2001-12-07  
4099 2001-10-02 2001-10-05  
4020 2000-05-19 2000-10-31  
3099 2000-05-15 2000-05-19  
1000 1999-12-15    

Implementation Dates

date of Ratification (DOR) (1) 2002-03-01
date of Availability (DAV) (2) 2002-06-21
date of Announcement (DOA) (3) 2002-06-01
date of Publication (DOP) (4) 2003-01-01
date of Withdrawal (DOW) (5) 2005-03-01


Superseded by  
Normative reference (6) NEMA C12.21:1999
IEC 60050-300:2001
IEC/TR 62051:1999
EN 62056-21:2002
EN 62056-46:2002
EN 62056-53:2002
EN 62056-61:2002
EN 62056-62:2002

(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.