SIM卡是Subscriber Identity Module(客户识别模块)的缩写,也称为用户身份识别卡、智能卡。随着用电信息采集系统不断应用推广,采用无线公网运营商提供SIM卡,安装至各类采集终端,利用GPRS/CDMA网络进行无线数据通信,已成为用电信息采集系统对变电站、专变用户、公变台区、低压用户进行数据采集的主要通信手段。随着用电信息采集系统的不断发展,采集系统接入的终 The SIM card is an abbreviation of the Subscriber Identity Module, also known as a subscriber identity card, a smart card. With the continuous application of electricity information collection system to promote the use of wireless public network operators to provide SIM cards, to all types of collection terminals, the use of GPRS / CDMA network for wireless data communications, electricity has become the information collection system for substations, Users, Gongtai Taiwan, low-voltage users for data acquisition of the main means of communication. With the continuous development of electricity information acquisition system, acquisition system access terminal