W&T connects
Interfaces for TCP/IP, Ethernet, RS-232, RS-485, USB, 20mA, glass and plastic fiber optic cable, http, SNMP, OPC, Modbus TCP, I/O digital, I/O analog, ISA, PCI
Data sheet:

PCI card 2x 20mA, 1kV isolated

  • PCI card 2x 20mA, 1kV isolated

Two additional TTY ports with galvanic isolation

The PC Card 13411 adds to independent 20mA ports with galvanic isolation to your PC. Any two non-isolated serial interfaces can be implemented using the additional TTL ports.



  • 2x 20mA interface
  • 2x serial TTL interface without galvanic isolation
    • usable with W&T interface modules as RS232, RS422, RS485 or 20mA interfaces
  • 1x 32-bit PCI bus
    • for 5V PCI systems
    • Cards for 3.3V PCI systems on request
  • Galvanic isolation between PC, Port 1 and Port 2
    • Isolation voltage 1kV

Management and connectivity:

  • 4 x UART 16950 with 128-byte FIFO
  • Plug-and-play: automatic configuration of base address and interrupt
  • Includes drivers for Windows 9x/NT4.0/2000/XP/2003/Vista/2008/7/2008R2/8.1/2012R2/10/2016

Standards & more

  • Conforms to standards both in office and industrial environments:
    • High noise resistance for industrial environments
    • Low noise emission for residential and business areas
  • 5 year guarantee

Worth knowing

In addition to the nominal interfaces, all serial W&T PCI cards provide additional serial TTL ports which can use interface modules to be converted into a standard port of any type.

These optional ports do not however have galvanic isolation between each other or to the PC.

The additional interface modules are connected to the interface card using flat cable and attached to a slot bracket in the PC housing. Both components can be ordered from W&T as a separate accessory.

Technical data

Connections and displays:

  • System bus:
    • 32-bit PCI bus / 33MHz / Universal Voltage
  • Serial port:
    • 2x 20mA interface
    • 9-pin SUB-D adapter
    • 2x non-isolated serial TTL ports
    • 12-pin header with 2mm spacing
  • Operating modes:
    • 20mA selectable active/passive mode
  • Maximum baud rate:
    • 57600 baud
  • Data format:
    • any format
  • Signals:
    • RxD, TxD
  • Handshake:
    • No, Xon/Xoff
  • UART:
    • 16950 with 128-byte FIFO
  • Galvanic isolation:
    • Isolation voltage min. 1kV DC
    • between PC and the serial ports 1 and 2
  • Supply voltage:
    • 5V DC, 12V DC
  • Current consumption:
    • typ. 200mA @ 5V
    • typ. 100mA @ 12V

Housing and other data:

  • Dimensions:
    • 134 x 120mm (W x H)
  • Enclosure rating:
    • IP00
  • Weight:
    • approx. 105g
  • Ambient temperature:
    • Storage: -40..+70°C
    • Operating: 0..+70°C
  • Permissible relative humidity:
    • 5..95% RH, non-condensing
  • Scope of delivery:
    • PCI Card 2x 20mA
    • Quick start manual
    • product CD with manual, German/English


  • Additive modules

    • RS232/RS422/RS485 interface module, 5V technology
    • 18813
    • 55.00€
    • RS232 DTE interface module
    • 18811
    • 41.00€
    • 20mA interface module (5V and 12V)
    • 18411
    • 55.00€
    • RS422/RS485 interface module
    • 18611
    • 55.00€
    • Profibus interface module
    • 18612
    • 49.00€
  • Mechanical Accessories

    • Port 3/4 additional slot plate with cable
    • 13013
    • 17.00€

* Our offering is intended only for commercial users. We will be happy to refer private end customers to trading partners through whom our products can be purchased.