ETSI ES 205 200-2-4 specifies Global Key Performance Indicators (KPIs) in terms of the performance of the fixed broadband Cable Access Network (CAN). The KPIs are expressed in terms of transmitted data volume in relation to the energy consumed by the distribution network between the in-home subscriber termination and network headend. The KPIs are taking into account the predominantly deployed HFC access network topologies by European cable network operators.

The present document addresses the objectives 1 to 4 as set out in ETSI ES 205 200-1 [1] to encourage:

• reduction in energy consumption;
• improvements in task efficiency;
• extension of energy re-use;
• application of renewable energy.

The definition of the Global KPIs is in accordance with requirements of ETSI ES 205 200-1 [1] in relation to:

• infrastructure scalability;
• infrastructure evolution;
• formulae and definition of terms;
• measurement points and procedures.

The present document refers to and introduces the Global KPI 'Energy Performance' in accordance with requirements of ETSI ES 205 200-1 [1] in relation to the above objectives.

With services trending towards exclusive use of digital transmission technologies, the present document considers only the network KPIs relevant for the support of digital services.

The contribution of all in-home equipment connecting to the customer premises network interface unit (NIU) such as the cable modem (CM), gateway (GW) and settop box (STB) to energy consumption as well as any other customer premises equipment connected to the in-home network are out of scope of the present document. The present document only considers components of the access network for the purpose of defining and measuring energy consumption key performance indicators.