ETSI TS 102 874-4-2012 接入,终端,传输和复用(ATTM).用户驻地网络和接入设备的外部一般供电.第4部分:CPS第2.b类实施细节(版本1.2.1)
Access, Terminals, Transmission and Multiplexing (ATTM); External Common Power Supply for Customer Premises Network and Access Equipment; Part 4: CPS Type 2.b implementation details (V1.2.1)