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:

Serial ISA - Basic board, 1kV isolated

  • Serial ISA - Basic board

Two mixed serial ports for older PCs

The 13001 Baseboard used together with W&T interface modules adds two isolated serial ports to your older ISA PC. The respective interface type can be freely selected by using the appropriate interface module. This makes it possible to equip your PC with different interfaces without having to use multiple cards.



  • 2x TTL interface
  • 1x 16-bit ISA bus
  • Galvanic isolation between PC and Ports 1 and 2
    • Isolation voltage 1kV

Management and connectivity:

  • 20mA, RS232, RS422, RS485 and profibus can be combined on one card
  • Manual configuration by means of DIL switch
  • Flexible configuration
    • Standard base addresses COM1-COM4
    • custom base addresses possible
    • Interrupts IRQ3-IRQ7, IRQ9-IRQ12
  • UART 16550 with FIFO
  • Software compatible with standard RS232 cards
  • No additional driver software required

Standards & more

  • Conforms to standards both in office and industrial environments:
    • High noise resistance per EN 61000-6-2
    • Low noise emission per EN 55032:2015 + A1 Cl. B, EN 61000-3-2 & EN 61000-3-3
  • 5 year guarantee

Worth knowing

There are many cases where it is necessary to equip the ports of an interface card with different port models. It may for example be necessary to use COM1 as a 20mA programming interface for a PLC, as the software used only supports this port, while COM2 is connected to an RS232 terminal device.

For such requirements, W&T provides a very smart solution without any need for additional external hardware. The module concept of the serial W&T PC cards allow you to freely select the interface model, as the PC card mainboard is equipped with pluggable modules that convert the internal TTL signals into interface signals.

The combined interface cards are supplied fully configured according to your specifications and are ready for installation. You can change a built-in port at any time by simply replacing the interface module.

Technical data

Connections and displays:

  • System bus:
    • 16 Bit ISA-Bus / 8.33MHz
  • Serial port:
    • 2x slots for interface modules
    • 12-pin header connector with 2mm spacing
  • Operating modes:
    • Different interface types possible
  • Maximum baud rate:
    • 115.200 kbaud
  • Data format:
    • any format
  • Signals:
  • Handshake:
    • No, RTS/CTS, Xon/Xoff
  • UART:
    • 16550 with FIFO
  • Base addresses:
    • 03F8H, 02F8H, 03E8H, 02E8H
  • Interrupts:
    • IRQ 3..7, IRQ 9..12
  • Galvanic isolation:
    • Isolation voltage min. 1kV DC
    • between PC and serial ports
  • Supply voltage:
    • 5V DC, 12V DC
  • Current consumption:
    • Varies with the serial module used

Housing and other data:

  • Dimensions:
    • 145 x 120mm (W x H)
  • Enclosure rating:
    • IP00
  • Weight:
    • approx. 90g
  • Ambient temperature:
    • Storage: -40..+70°C
    • Operating: 0..+70°C
  • Permissible relative humidity:
    • 5..95% RH, non-condensing
  • Scope of delivery:
    • serial ISA mainboard
    • Manual


*Net unit price for
commercial users
  • 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€

* 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.