Vlinx VESP211 small-form-factor serial servers connect serial devices to Ethernet networks. VESP211 supports RS-232/422/485 (MEI) with a DB9M serial port and RJ45 Ethernet port. VESP211-232 supports RS-232 with a DB9M serial port and RJ45 Ethernet port. VESP211-485 supports RS-422/485 with a removable terminal block and RJ45 Ethernet port.