The cloud based RTU collector, also known as a "communication management unit" or "DPU", has multiple downstream communication interfaces and one or more upstream network interfaces. It is equivalent to a small monitoring computer, used to organize and summarize the communication data of all intelligent monitoring/protection devices in a substation, and transmit it in real time to the higher-level main station system (monitoring center backend machine and DCS) to complete remote signaling and telemetry On the other hand, it receives commands from the backend machine or DCS and forwards them to the PDM series units in the substation to complete remote control or device setting for the opening and closing of various switchgear in the plant, achieving remote control and adjustment. At the same time, it is equipped with multiple serial interfaces for communication with other intelligent devices within the factory.

The 2000R+TC cloud based RTU collector adopts a powerful 32-bit industrial control CPU with high computing power and a reliable real-time multitasking LINUX embedded operating system as the system platform. It has reliable operation, strong anti-interference ability, fast response speed, easy expansion, easy debugging, sub station node merging and powerful and flexible data configuration function. It can achieve data conversion from 232/485 (optional) to Ethernet. Its downstream communication port adopts the standard MODBUS RTU communication protocol, and the upstream communication network can use either Ethernet (MODBUS TCP/IP) or RS-232/485 (optional) bus; The specific requirements for remote scheduling in the local monitoring master station can be set up in the backend software for communication. The basic type of 2000R+TC cloud RTU collector has 2 Ethernet ports, 8 232 serial ports (optional 485), 1 232 maintenance port, 2 CAN ports, 2 DI, 2 DO, and 1 USB interface. Each communication port can be connected to different numbers of intelligent products with MODBUS protocol.
The 2000R+TC cloud RTU collector is a new type of substation automation information comprehensive management unit, suitable for various voltage levels, different scales, and different functional requirements of substation automation systems. As a communication server between the substation and the cloud, it can be used as a communication protocol conversion device for intelligent devices in the substation, as well as a substation in the energy metering management system, to access intelligent instruments in the substation and complete comprehensive information collection, control, and management work in the substation.