## 2 Communication Architecture  
Multi-Domain Communication Architecture of Data Center Management Systems Including Local and Remote Communication  
The communication system is a core component of the data center management system, and advanced and comprehensive information and communication technology and standardized protocols provide important technical support for the data center management system [10]. Modern communication technology can adapt to the access and scheduling of various power resources such as IT equipment, refrigeration systems, lighting, etc. inside data centers [11], achieving intelligent operation of data centers and providing important guarantees for the safe and stable operation, optimized scheduling, and intelligent management of data centers [12]. Traditional research on communication network architecture for data center management systems often focuses on adaptation analysis of a single communication technology, lacking consideration of the demand for heterogeneous communication fusion networking in differentiated and diversified power service under the background of the gradual popularization of modern communication technology [13]. This article constructs a multi-domain communication architecture for a data center management system that includes local and remote communication. Considering the service communication needs of the data center management system, heterogeneous communication fusion networking is achieved from local and remote communication, improving the carrying capacity of power service. Based on cloud edge collaboration technology, network costs are saved, ensuring efficient consumption of new energy, achieving unified management and precise regulation of load resources, and achieving precise load control and other data center load management [14]. Figure 1 is a schematic diagram of the multi-domain communication network architecture of the data center management system. The communication system has a layered architecture, including terminal layer, access layer, network layer, platform layer, and service layer, and provides secure and reliable communication protocols. The terminal layer is mainly composed of the main internal structures of the data center, including IT equipment, refrigeration systems, lighting, and other auxiliary equipment. Intelligent terminals can perceive the real-time status of various load resources, complete data collection and status monitoring of load resources, and upload the data. In addition, the terminal layer also includes edge computing and edge proxy functions. The access layer is composed of local communication technologies such as RS485, HPLC, WiFi, LoRa, and Bluetooth. It establishes communication connections with terminal equipment using various communication protocols and is equipped with an access security firewall to ensure the security of data uploads from terminals and the issuance of platform instructions. It collaborates with the network layer to upload service data, thus requiring unified access to load terminals at the access layer. The network layer consists of remote communication technologies such as wireless private network, wireless public network, fiber optic private network, and medium voltage power line carrier communication. Various types of information transmit in the data center management system over a wide area between the platform layer and the access layer, and equip with a network firewall to ensure the security of remote data transmission. The platform layer serves as the cloud computing center and is composed of platforms. The platform layer is based on artificial intelligence, big data, and other technologies to achieve centralized storage, analysis, and processing of load data, then making intelligent decisions, control, and services through software platforms. It utilizes cloud edge collaboration to achieve efficient resource utilization. The service layer consists of differentiated data center management system services, including precise load control, video monitoring, and electricity information collection.