Digi International EZ04-TS 4-Port Serial Server

Bring four serial-device connections onto an IP network with the Digi Connect EZ04-TS serial server. Its four serial ports support RS-232, RS-422, and RS-485 electrical interfaces, giving installers a single network-attached platform for equipment that uses different serial signaling methods. Software selection of the serial interface helps accommodate connected equipment without requiring separate serial-server variants for each supported standard. This configuration fits installations where several controllers, instruments, terminals, or industrial serial devices need network access from one location. Four ports provide a practical density for small equipment groups while avoiding the need to deploy an individual network serial device for every connected endpoint. The serial-server role keeps the focus on carrying existing serial communications into the network environment rather than replacing the attached equipment. Digi International EZ04-TS00-GLB is the four-port member of the Connect EZ serial-server range and combines multi-standard serial support with software-selectable interface operation. Select it when the deployment requires four serial connections and the attached devices may use RS-232, RS-422, or RS-485 signaling. Matching the required port count and electrical interface to the installed equipment is the key compatibility check for this configuration.