Data and communication systems are integral to modern electrical infrastructure, facilitating the transmission, processing, and storage of information across various applications. These systems include data cables, connectors, switches, routers, servers, and other networking devices, as well as communication protocols and standards. They are used in numerous industries, such as telecommunications, information technology, automation, and security, to support functions like data transmission, voice communication, video surveillance, and remote monitoring and control. Design, installation, and maintenance of these systems require specialized knowledge and adherence to industry standards and regulations.