IEC <br/><br/>
IEC: 62056-42-2002-02: Electricity Metering-Data Exchange for meter Reading,Tariff and Load control-Part 42:Physical layer services and procedures for connection-oriented ........... 

 - 1 
 - Geneva  IEC  2002 
 - 27 
<br/><br/><label>ISBN: </label>2-8318-6157-8 
<br/><br/><label>Universal Decimal Class. No.: </label> /