DS203 Serial Device Server

10/100BaseT Ethernet port

Compact (60x47x30mm)

One RS232 port

Wide supply voltage (10-25V)

  • About

  • Hardware

  • Functionality

The DS203 is a serial device server that can be used to quickly network-enable virtually any serial device or system. Compared to the original DS100 converter, the DS203 is smaller, faster, and has a larger memory.

The DS203 is offered with Tibbo Device Server Toolkit software, which includes Virtual Serial Port Driver for Windows and Linux.


  • 10/100BaseT, auto-MDIX Ethernet port.
  • One RS232 serial port (TX, RX, RTS, CTS, DTR, DSR).
  • Two status LEDs on the RJ45 jack.
  • Two Ethernet status LEDs on top of the device.
  • Power: 10-24V (12V nominal).
  • Dimensions: 60x47x30mm.
  • Firmware is upgradeable through the serial port or network.
  • CE- and FCC- certified.

Optional Accessories:
DMK1000 DIN rail mounting kit
12V/0.5A adaptor: APR-P0011 (US), APR-P0012 (EU), APR-P0013 (UK)
WAS-1499 straight Ethernet cable*
WAS-P0004(B) DB9M-to-DB9F serial cable (device-to-PC)
WAS-P0005(B) DB9F-to-DB9F serial cable (device-to-device)

*For this device can be used as crossover cable too

Serial-over-IP firmware:

  • Full- and half-duplex serial port modes.
  • Server, client, and server/client network ("routing") modes.
  • Numerous other options for connections, serial port, etc.
  • 8KB data buffers (one in each direction).
  • Configuration stored in the EEPROM.
  • Detailed status indication via LEDs.
  • Setup through the serial port or network (UDP, Telnet).
  • Remote control of RTS, CTS, DTR, and DSR lines.
  • "On-the-fly" commands for immediate serial port configuration.
  • Serial-side "modem" commands for network connections control.
  • Direct control of ADSL modems.
  • Supports UDP, TCP, ARP, ICMP (ping), DHCP, PPPoE, LCP.
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