Engineers and Project Managers that require a cost effective 4 or 8 port serial RS232-to-Ethernet solution that maintains serial device protocol integrity across Ethernet must consider the IOLAN STS-D. Having the highest performance processor available along with the Perle''s unique TrueSerialTM technology, the IOLAN STS-D will provide the most authentic serial connections across Ethernet. IOLAN STS4-D Serial Terminal Servers are also available with support for Power over Ethernet (PoE). Ideal for Engineers and Project Managers requiring a high performance serial to Ethernet interface for up to 4 serial RS232 based devices. Connect to serial based applications over Ethernet Compact size offers the smallest 4 or 8 port serial to Ethernet solution on the market