... remotely CDMA,GPRS communication AMR system/AMI System/MBUS,RS485,PLC,Wireless AMR System with CDMA or GPRS ... , On the other hand, If some one go out and forgot to cut off the valve, ... the uptown. Features of System1. AdvancementThe system is an open system that can match with any agreement ... the upper layer of communication network and the system is use Ethernet, which can share network with ...