The ABI-024-RC is a Pro Signal series Ethernet port expander module by Automation Systems Interconnect. It is used to increase the Ethernet ports on any device that provides Ethernet access. It features four RJ45 ports with AutoMDIX and works with 10/100/1000 Mbps Ethernet. It supports 4KV isolation, surge protection and full-duplex operation. It also has LED indicators for power, link, and speed. The ABI-024-RC has a plastic housing and is designed for DIN-rail mounting. It can be used in industrial applications, such as power generation and distribution, water/wastewater, production and process control, automation, and building automation systems.