Programmable Device Server with 1 Expansion Slot


Programmable Device Server with 1 Expansion Slot

  Price:  $439.00  


applicationThe 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.


  • Incorporate Serial Devices in an Ethernet network
  • "Virtual COM" extends PC COM ports
  • VxComm Driver for Windows NT 4.0, 2000/XP/2003 and Vista32
  • Programmable Internet/Ethernet Controller
  • Watchdog Timer suitable for use in harsh environments
  • 2-port 10/100 Base-TX Ethernet Switch (Auto-negotiating, auto MDI/MDI-X, LED indicator)
  • Power Reverse Polarity Protection
  • 3-wire RS-232 console Port
  • RS-232 TxD/RxD LED Indicators
  • System Status LED Indicator
  • ESD Protection and Frame Ground Design
  • RoHS Compliant with no Halogen
  • Built-in High performance MiniOS7 from ICP DAS
  • Low power consumption
  • Made from fire retardant materials (UL94-V0 Level)


  • Factory Automation
  • Building Automation
  • Home Automation

Reference & Support

  • User's Manual
  • Cut Sheet
  • Quick Start

  • RoHS


    CPU 80186-80 MHz or compatible
    SRAM 512 KB
    Flash Memory 512 KB
    EEPROM 16 KB
    Built-in Watchdog Timer Yes
    I/O Expansion Slots 1 Slot
    Communication Interface
    COM1 (Console) RS-232 (TxD, RxD, GND)
    Ethernet 2-port 10/100 Base-TX Ethernet Switch
    (Auto-negotiating, auto MDI/MDI-X, LED indicator)
    COM Port Formats
    Speed 115200 bps Max.
    Data Bit 7, 8
    Parity None, Even, Odd
    Stop Bit 1
    LED Indicators
    TxD/RxD Yes (for COM1 console port)
    System Yes
    ESD Protection Yes (with Frame Ground)
    Protection Power Reverse Polarity Protection
    Required Supply Voltage +10 VDC ~ +30 VDC (non-regulated)
    Power Consumption 0.6 A @ 5 V for CPU and Backplane,
    1.0 A @ 5 V for Plug-in Modules,
    Total: 8 W
    Flammability Fire Retardant Materials (UL94-V0 Level)
    Dimension (W x H x D) 64 mm x 110 mm x 120 mm
    Installation DIN-Rail
    Operating Temperature -25 ~ +75 °C
    Storage Temperature -40 ~ +80 °C
    Humidity 5 ~ 95% RH, non-condensing

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