Industrial Gateway


•Incorporate Serial Devices in an Ethernet network
•"Virtual COM" extends PC COM ports
•Includes a VxComm Driver for 32- and 64-bit Windows 7 SP1/10/2012/2016
•Programmable Internet/Ethernet Controller
•Watchdog Timer suitable for use in harsh environments
•Built-in High performance MiniOS7 from ICP DAS


The PDS-811 and PDS-821 programmable device servers (PDS) are compact, modular, intelligent, rugged, and are designed for networking RS-232 and RS-422/485 serial devices to an Ethernet network. The PDS-811 has one I/O expansion slot, while PDS-821 has two I/O expansion slots that can be used to attach various 2- or 4-port serial communication modules. Therefore, a maximum of 4 serial ports can be installed on the PDS-811 or a maximum of 8 serial ports can be installed on the PDS-821.
Note: There is no serial module built-in to the PDS-811 or PDS-821 by default.
The PDS-811 and PDS-821 controllers are equipped with a 2-port 10/100 Base-TX Ethernet Switch that can be used to connect two network segments. The Ethernet Switch processes and routes data on the data-link layer (layer 2) of the OSI model to create a different collision domain per switch port. Using a switch allows you to attain dedicated bandwidth on point-to-point connections with every computer, and therefore run in full duplex mode with no collisions. Furthermore, the built-in 2-port Ethernet Switch on the PDS-811/821 enables network wiring to be simplified by cascading your Ethernet devices.
The PDS-8x1 series contains a built-in operating system, the MiniOS7, which offers a stable and high performance environment that is similar to DOS. The MiniOS7 can boot up the PDS-8x1 series within just one second, with the added benefit of no virus problems and a small footprint. Furthermore, the PDS-8x1 series is designed for low power consumption, maintenance elimination (no hard disk and no fan), and is constructed from fire retardant materials (UL94-V0 level) with a robust case.


Factory Automation    Building Automation    Home Automation



 CPU Module
 CPU 80186-80 MHz or compatible
 Flash 512 KB
 SRAM 512 KB
 Watchdog Timer Yes


 LED Indicators
 Status 1 x Power
2 x Communication


 COM Ports
 Ports 1 x 3-wire RS-232
 Baud Rate 115200 bps Max.
 Parity None, Even, Odd
 Data Bit 7, 8
 Stop Bit 1


 Ports 2-port 10/100 Base-TX Ethernet Switch
(Auto-negotiating, auto MDI/MDI-X, LED indicator)


 Consumption 0.6 A @ 5 V for CPU and Backplane,
1.0 A @ 5 V for Plug-in Modules,
Total: 8 W


 Dimensions (mm) 95 mm x 132 mm x 110 mm
 Installation DIN-Rail  or Wall mounting


 Operating Temperature -25 ~ +75 °C
 Storage Temperature -40 ~ +80 °C
 Humidity 5 ~ 95% RH, non-condensing



CA-0910 NS-205
      CA-0910        NS-205




 PDS-821     CR  Programmable Serial-to-Ethernet Device Server with 2-port Ethernet Switch and 2x Expansion Slots (RoHS)
Includes CA-0910 Cable