KS IEC 62055-41:2007

Electricity metering - Payment metering systems - Part 41: Standard Transfer Specification.( STS) - Application layer protocol for one-way token carrier systems

Specifies the application layer protocol of the STS for transferring units of credit and other management information from a point-of-sale(POS) system to an STS-COMPLIANT PAYMENT METER IN A ONE WAY TOKEN CARRIER SYSTEM.