KS C IEC 62056-41:2005 电表.读表、计费和负载控制数据交换.第41部分:使用广域网的数据交换:带LINK+协议的公共转换电话网(PSTN)
Electricity metering-Data exchange for meter reading, tariff and load control-Part 41:Data exchange using wide area networks:Public switched telephone network(PSTN) with LINK+protocol