ES 202 874-1-2012 Access Terminals Transmission and Multiplexing（ATTM）;用户驻地网络和接入设备的外部公共电源；第1部分：功能要求（V1.2.1）
Access@ Terminals@ Transmission and Multiplexing (ATTM); External Common Power Supply for Customer Premises Network and Access Equipment; Part 1: Functional requirements (V1.2.1)
The present document specifies a universal solution for power supplies (named Common Power Supply and indicated with the acronym CPS) suitable for customer equipment used in the home networks@ using energy provided by mains power in a range between 100 V and 240 V AC and 50 Hz to 60 Hz of frequency (apart tolerances). The topics addressed in the present document are as follows: ? applicability: definition of product categories included in the scope (home gateway@ and various other devices installed in the home network); ? market scenarios and use cases for the use of the CPS in the home environment; ? functional requirements for electrical operating conditions of the CPS; ? functional requirements for energy efficiency of the CPS; ? functional requirements for connectors on the CPS and devices which it powers; ? functional requirements for eco-design of the CPS.