Companion Specifications

Table of STS Companion Specifications

Number

Title

Scope

STS101-1

INTERFACE SPECIFICATION –Physical Layer Mechanical and Electrical Interface for Virtual Token Carriers

STS 101-1 describes the de-facto industry standard(s) "credit reader port" mechanical and electrical interface as implemented by existing prepayment meters, but with minor deviations and enhancements. 

The specification aligns with IEC 62055-52.

STS101-2
ELECTRICITY METERING – PAYMENT SYSTEMS 

Standard Transfer Specification – Physical Layer Protocol for a two-way virtual token carrier for remote connection over COSEM

This document specifies the requirements for a new token carrier (STS_COSEM_TC) for the transfer of tokens using standard DLMS/COSEM client/server protocols and a selection of COSEM interface classes.
STS200-1
COMPANION SPECIFICATION - 

Generic classes for meter function objects

The Specification introduces, describes and defines the concept of Meter_Function_Objects, which provide for specifying the functionality of the meter without imposing design-specific or technology-specific constraints on the actual meter implementation.
STS201-1

COMPANION SPECIFICATION–  
Meter function object: RegisterTable for payment meters
This companion specification is intended to document and adopt the de-facto industry standard "credit reader port" functionality as implemented by existing prepayment meters.

The specification is for complementary use with companion specification STS 101-1 and is envisaged by IEC 62055-52 as an instance of a MeterFunctionObject.