International Electrotechnical Commission <br/><br/>
IEC: 60870-5-104-2006; Telecontrol equipment and systems Part 5-104; Transmission protocols - network access for IEC 60 

 - 2 
 - Geneva  International Electrotechnical Commission  2006 
 - 139 
<br/><br/><label>Universal Decimal Class. No.: </label> /