The ABB TB5610-2ETH is a terminal base designed for the AC500-eCo V2 programmable logic controller (PLC) platform, specifically for use with PM56xx CPUs. This essential component provides the physical connection interface for the CPU, I/O modules, and external devices. It features an integrated 2-port Ethernet switch, enabling straightforward network connectivity and daisy-chaining capabilities without the need for an external switch. Additionally, it offers versatile communication options with one RS485 serial port (COM1) and a second configurable RS232/RS485 port (COM2). The screw-type terminals ensure secure and reliable wiring for power supply and I/O signals, making it a robust foundation for compact and cost-effective automation solutions.