Maintain control of serial infrastructure without sending technicians to the rack. The Perle Systems IOLAN SDG4 TX Device Server provides four RJ45 serial console ports with RS232/422 support and Gigabit Ethernet connectivity, giving operations teams a practical path to remote access for legacy equipment. Built for environments where uptime and response time matter, this console server helps centralize access to devices that still depend on serial management. The 10/100/1000 Ethernet interface supports modern network integration, while the four-port design keeps multiple endpoints available from a single appliance. That means fewer site visits, faster troubleshooting, and cleaner management of distributed infrastructure. For teams supporting branch offices, industrial systems, or mixed-vendor hardware, the SDG4 TX offers the right balance of density and simplicity. It is a focused tool for organizations that need reliable serial connectivity, not a general-purpose server. In procurement terms, that distinction matters: you are buying a purpose-built access layer that reduces operational friction and preserves access to equipment that cannot be replaced on a normal refresh cycle.