The Southern Power Grid Collector integrates modern communication technology, computer software and hardware technology, and power marketing technology. It can collect data from energy meters with RS485 interfaces. Each collection terminal can be connected to 32 energy meters, which can forward real-time meter reading commands from the carrier concentrator and send the data returned by the energy meters back to the concentrator. The southern grid collector complies with standards such as "S.00.00/Q104-0016-0810-1363 Technical Conditions for Ordering and Acceptance of Collection Terminals for Low Voltage Power User Centralized Meter Reading System of Guangdong Power Grid Company" and "S.00.00.04/MT.002.0034 Outline Structure Specification for Measurement Automation Terminals of Guangdong Power Grid Company".