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Serial Ethernet Converter (RS232, 485, 422) - Lantronix

  • Part: UD1100001-01


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The UDS1100 from Lantronix is a high quality American made serial device server which will allow you to connect any standard serial RS232, RS485 or RS422 device to a computer over an Ethernet / LAN network or even over the Internet. It is a quick and easy way to bring the advantages of remote management to equipment not currently connected to a network.

The UDS1100 is priced a bit higher than other 1-port serial device servers with similar functions but the extra cost is well worth the money if you want the best. Besides the high quality and performance, the UDS1100 serial device server offers all standard features and functions, including a few advanced features. Furthermore this device server has multiple agency approvals such as UL, CSA, FCC, CE, TUV, CTick, VCC and UL 864; please see specifications for details.

This serial server is designed around Lantronix's own CPU (DSTNI-EX) which features easy to use management with the included Virtual COM port re-director software (DeviceInstaller™). However, the server settings can also be configured through a standard web-browser, over Telnet, Serial login or SNMP.

As a leading manufacturer of high quality networking products Lantronix offers a line of serial Ethernet device servers ideal for commercial and industrial use. Please see our full line of Lantronix products for alternative solutions.

Some of the advanced features are:

Modem Replacement

In modem emulation mode, the UDS1100 can be used to replace a dial-up modem. The unit will then accepts modem AT commands sent on the serial port. It then establishes a network connection to the end device, leveraging network connections and bandwidth to eliminate dedicated modems and phone lines.

Total Com Port Control with TruPort Technology

Built into the included Com Port Redirector software, TruPort® technology enables Windows-based applications to access and control serial ports on the UDS1100 as if they were actually local PC serial ports. The application can monitor and set hardware pins on the UDS1100 serial ports as well as access serial buffers for total Com port control. This allows existing applications to seamlessly transition from controlling local devices to true remote monitoring and control of devices around the world.

Customization for Applications

Web pages enabling the UDS1100 to be customized for unique applications can be built using Lantronix development tools. On-board Flash memory provides room for future system software upgrades and maintenance-free, non-volatile web page storage.

Overall features
  • 1-port RS232, RS485, RS422 to Ethernet device server
  • High quality and reliable Lantronix brand
  • 2 and 4-wire RS485 support
  • Many advanced features and functions
  • Indication LED lights
  • Virtual COM management software included
  • Management: web-browser, Telnet, Serial, SNMP
  • Complete agency approvals
  • 6 feet DB25 male to DB9 female cable included

Useful optional accessories
(not included)

DB9 to DB25 adapter
DB9 Female / DB25 Male adapter

Null modem adapter
Null modem adapter

DB9 to RJ45 adapter
DB9 - RJ45 adapter

DB9 gender changer
Gender Changer

Part number UDS1100
Software Windows 8, Windows 7, Vista, XP, 2008 Server, 2003 Server (32-bit and 64-bit versions), DeviceInstallerâ„¢ configuration software, Com Port Redirector software and related utilities.
Processor Lantronix DSTNI-EX
Memory: 256 KB zero wait state SRAM, 2 MB Flash
Serial interface Software-selectable RS232, RS422 or RS485 (2 and 4 wire support)
1-port DB25 Female, DCE serial port
Configuration Options Web browser, Telnet client, Serial Terminal
Indication LEDs TX, RX, Status and Diagnostics
Serial signals

RS485 2-wire: Data+, Data-, GND
RS485 4-wire: Tx+, Tx-, Rx+, Rx-, GND
RS422: Tx+, Tx-, Rx+, Rx-, GND

Baud rate 300 bps to 921.6 Kbps
Parity Odd, even, none
Data Bits 7, 8
Stop Bits 1, 2
Flow control CTS/RTS (Hardware)
XON/XOFF (Software)
Network Protocols ARP, UDP, TCP, ICMP, Telnet, TFTP, AutoIP, DHCP, HTTP, SNMP TCP, UDP, and Telnet, TFTP, RFC2217
Power 9-30 VDC on barrel connector or on DB25F serial interface
Power Consumption 1.8 Watts maximum
Electrostatic (ESD) protection Serial Port: 15 kV ESD protection on RS232 and RS422/485 transceivers
Power Input: Up to non-repeated 600 W 10/100 usec pulse protection against transient over voltages
Ethernet Port: 1500 VAC isolation shielded with shield connected to chassis ground for signal integrity and ESD protection
Housing Metal enclosure with integrated wall mounts
IP rating 30
Agency approvals FCC, C/UL, CSA, VCCI, CE, TUV, CTick
Regulatory compliance
  • FCC Part 15 Subpart B Class A
  • ICES-003 Issue 4 February 2004 Class A
  • AS/NZS CISPR 22: 2006 Class A
  • EN55022: 1998 + A1: 2000 + A2: 2003 Class A
  • UL 864: indoor dry environments (UDS1100 only)
  • VCCI V-3/2006.4 Class A
  • EN61000-3-2: 2000 Class A
  • EN61000-3-3: 1995 + A1: 2001
  • EN55024: 1998 +A1: 2001 +A2: 2003
  • IEC_61000-4-2: 1995 8KV Air, 4KV Contact
  • IEC_61000-4-3: 1995 3.0V/m, 1KHz AM Sine Wave at 80%
  • IEC_61000-4-4: 1995 1.0KV Power Lines, 0.5KV I/O Lines
  • IEC_61000-4-5: 1995 1.0KV Common, 1.0 KV Differential
  • IEC_61000-4-6: 1996 3.0 Vrms, 80% AM Modulated (1KHz)
  • IEC_61000-4-8: 1993 50Hz 1.0 Arms/m
  • IEC_61000-4-11: 1994 (>95%,0.5), (30%,25), (>95%,250)
Dimensions 35.5 x 17.1 x 7.6 cm (14 x 6.75 x 3 in)
Weight 1.5 kg (3.0 lbs)
Operating temperature 0° to 60° C (32° to 140°F)
Warranty 2 years limited warranty

For alternative serial to Ethernet solutions please see our full selection of serial Ethernet Converters.


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