Purchase Specifications from the IEC

 

IEC 62055-41 : ELECTRICITY METERING - PAYMENT SYSTEMS

Part 41: Standard transfer specification (STS) - Application layer protocol for one-way token carrier systems

 

 

IEC 62055-51 : ELECTRICITY METERING - PAYMENT SYSTEMS

Part 51: Standard transfer specification (STS) - Physical layer protocol for one-way numeric and magnetic card token carriers

 

 

These standards have now been published by the IEC as international standards and are available from the IEC Webstore in Geneva