PDS-220FT Programmable (1x RS-232 and 1x RS-422/485) Serial-to-Fiber Device Server with Modbus Gateway & 1-port Multi-mode ST Fiber (2 km)


Key Features

  • Adds optical fiber connectivity to serial devices
  • “Virtual COM” extends COM ports
  • Virtual Utility supports 32/64-bit Windows 7 SP1/10/2012/2016
  • Powerful programmable device server
  • Watchdog Timer suitable for use in harsh environments
  • Serial Port +/-4 kV ESD Protection Circuit
  • Self-Tuner ASIC controller on the RS-485 port
  • Built-in high performance MiniOS7 from ICP DAS
  • Supports Modbus TCP to RTU/ASCII Gateway
  • Low power consumption


The ICP DAS PDS-220Fx series is a family of Programmable Device Servers, also known as “Serial-to-Ethernet gateway”, that are designed for adding optical fiber connectivity to RS-232/422/485 devices.

The fiber-optic communications permits transmission over longer distances than other forms of communications because of the signals travel along them with less loss and no crosstalk. It has following important features: Immunity to electromagnetic interference (EMI) — Motors, relays, welders and other industrial equipment generate a tremendous amount of electrical noise that can cause major problems with copper cabling.

High electrical resistance, making it safe to use near high-voltage equipment or between areas with different earth potentials. No sparks — important in flammable or explosive gas environments.

Not electromagnetically radiating, and difficult to tap without disrupting the signal — important in high-security environments. Because of these reasons, optical fibers have largely replaced copper wire communications in core networks in the developed world.

The user-friendly VxComm Utility allows users to easily turn the built-in COM ports of the PDS-220Fx series into standard COM ports on a PC. By virtue of its protocol independence, a small-core OS and high flexibility, the PDS-220Fx series is able to meet the demands of every network-enabled application.

The PDS-220Fx series includes a powerful and reliable Xserver programming structure that allows you to design your robust Ethernet applications in one day. The built-in, high-performance MiniOS7 boots the PDS-220Fx up in just one second and gives you fastest responses.

The PDS-220Fx is equipped with 1 RS-232 port and 1 RS-485/422 port. The removable on-board terminal block connector is designed for easy and robust wiring in industrial situations.