Industrial Gateway


  • 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 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.


Factory Automation      Building Automation      Home Automation


 CPU Module
 CPU 80186-80 MHz or compatible
 Flash 512 KB; Erase unit is one sector (64 KB); 100,000 erase/write cycle
 SRAM 512 KB
 Watchdog Timer Yes


 LED Indicators
 Status 1 x Power
2 x Ethernet


 COM Ports
 Ports 1 x 5-wire RS-232
1 x RS-485/RS-422
 Baud Rate 115200 bps Max.
 Bias Resistor Yes, 1 KΩ
 Parity None, Even, Odd, Mark, Space
 Data Bit 7, 8
 Stop Bit 1, 2
 Node Address 254 (max.)


 Ports 100 Base-FX (SC connector)


 Reverse Polarity Protection Yes
 Consumption 0.14 A @ 24 VDC
 Powered from Terminal Block +12 ~ 48 VDC


 Casing Fire Retardant Plastic
 Dimensions (mm) 31 mm x 157 mm x 123 mm (W x L x H)
 Installation DIN-Rail mounting


 Operating Temperature -25 ~ +75 °C
 Storage Temperature -30 ~ +85 °C
 Humidity 10 ~ 90% RH, non-condensing



CA-0903 CA-0910 NS-200AFC-T
  CA-0903   CA-0910 NS-200AFC-T


 PDS-220FCS     CR  Programmable (1x RS-232 and 1x RS-422/485) Serial-to-Fiber Device Server with Modbus Gateway and 1-port Single-mode SC Fiber (30 km) (RoHS) 1