STE211 2 port serial RS-232 and RS-422/RS-485 to Ethernet IP Terminal Server

The serial to Ethernet device server STE211 is bridging RS-232 and RS-422/RS-485 Serial Data communications devices to Ethernet IP networks. STE211 connects serial devices such as PLC, alarm sensors and PTZ camera controls to IP networks. Applications include industrial/factory automation, public safety, and surveillance systems. The STE211 Serial Server is built for use in light industrial environments, featuring a compact wall-mount design. It operates from 9-32VDC power supply voltages with terminal block connectors and is easy to configure through its web GUI interface.

The IP Device Server Windows driver is designed to control the IP Serial Server devices. The driver installs a virtual COM on Windows which maps the virtual COM port to the IP address of the IP Serial Server device across the network, enabling the Windows applications to access remote serial devices over Ethernet. IP Device Server can function as a UDP or a server or client for TCP connection. The application scenarios are direct IP mode, virtual COM mode, and paired mode.

The STE211 terminal server(access server) allows RS-232 and RS-422/RS-485 enabled devices to connect over Ethernet(10/100Base-TX) using TCP/IP protocol. This small powerful device allows serial only managed devices to be seen and controlled over Internet.

Features of STE211 device server
▪10/100Mbps Ethernet port
▪921.6kbps serial interface max. speed
▪Supports TCP Server, TCP client, Virtual com mode, UDP
▪Support for DHCP, HTTP, ICMP, ARP, IP, UDP, TCP, DNS, NTP
▪Watch Dog Function
▪2 Wire(half duplex) or 4 Wire(full duplex)RS-422/485
▪Configuration by web browser
▪Low power consumption (2W) with single 9V to 32V wide DC input(Industrial range)
▪Low cost and compact design, good for automation applications: 85 x 53 x 21 mm
▪Optional DIN rail installation kit
▪Works in server or client mode
▪Provides serial connection over Ethernet


Technical specifications
Connectors: EIA RS-232 DB9 male connector, screw block for RS-422/RS-485 and RJ-45 10/100Base-TX Ethernet connector
Support for DHCP, HTTP, ICMP, ARP, IP, UDP, TCP, DNS, NTP
Handshaking: RTS/CTS, XON/XOFF, none
Protocols: ARP, IP, ICMP, UDP, TCP, HTTP, DHCP, DNS, NTP
Management: Web based, Remote Access, Firmware upgrade support
LEDs: SYS, LAN, TX, RX
Power: External 12V AC(AC 100-240V adapter included in box)
Installation: DIN-Rail support with optional kit, wall mounting support
Temperature: -20-70ºC (Operating), -25 - 80ºC (Storage)
Humidity: 5%-90% non-condensing
Dimensions: 110mm x 90mm x 26mm
Weight: 110g

Additional information on STE211: PDF Datasheet; PDF Installation Manual.