International Electrotechnical Commission <br/><br/>
IEC: 60870-5-101 - 2003-02; Telecontrol equipment and systems- Part -101: Transmission protocols - companion standard for basic telecontrol tasks 

 - 2.0 
 - Geneva  International Electrotechnical Commission  2003 
 - 178 
<br/><br/> Taken print out from CD 
<br/><br/><label>Universal Decimal Class. No.: </label> /