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 RS422/RS485, 1kV isolated

  • PCI card 2x RS422/RS485, 1kV isolated

Two additional RS422/RS485 ports with galvanic isolation

The PC Card 13611 adds two independent RS422/RS485 ports with galvanic isolation to your PC. Any two non-isolated serial interfaces can be implemented using the additional TTL ports.



  • 2x RS422/485 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:

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

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 RS422/485 interface
    • 9-pin SUB-D adapter
    • 2x non-isolated serial TTL ports
    • 12-pin header with 2mm spacing
  • Operating modes:
    • RS422
    • RS485 2/4 wire with handshake control
    • RS485 2/4 wire with automatic control
  • Maximum baud rate
    • 230.400 kbaud
  • Data format
    • any format
  • Signals:
    • RxD, TxD, CTS, DTR
  • Handshake:
    • No, RTS/CTS, 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 RS422/RS485
    • Quick start manual
    • product CD with manual, German/English