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 Express Motherboard, 1kV isolated

  • PCI Express - base card

Two mixed serial ports on PC

The 13041 PCI Express base board together with W&T interface modules provides two independent serial interfaces with 1kV galvanic isolation.



  • 2x TTL interface
  • 1x 32-bit PCIe bus
  • Galvanic isolation between the ports
    • Isolation voltage 1kV DC
  • Flexible interface selection
    • by selecting the serial interface modules

Management and connectivity:

  • Two different serial ports on one PCIe card:
    • R20mA, RS232, RS422, RS485, Profibus
  • UART with 128-byte FIFO and DMA capability for relieving the CPU
  • Compact "x1" plug-in card for any PCI Express slots
  • Compatible with PCI Express Standard 1.1 and PCI Power Management Standard 1.2

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

PCI Express has almost completely replaced the long-in-the-tooth PCI bus system in current PC designs. There are still PC motherboards which offer slots for both systems, but due to cost and performance considerations current boards are equipped almost exclusively with PCI Express slots.

PCI Express is not a traditional PC bus system in which all plug-in cards are in parallel with the majority of bus lines. PCI Express is rather a star type wiring technique using a point-to-point connection between the PC and plug-in card to allow significantly greater transmission speeds than a bus solution with parallel wired slots would be able to process.

Data transmission to the plug-in cards in PCI Express is serial using differential wire pairs, so-called "lanes", which run at a speed of 2.5 or 5 GB/s. For cards with high data throughput (graphics and network cards, hard drive controllers), multiple lanes are routed to a slot, whereas cards with less complexity get by easily with one lane.

The PCI Express standard enables solutions in which one (x1), four (x4), eight (x8) or 16 (x16) lanes are routed to a slot, with the connectors differing in the mechanical configuration, pin configuration and load capacity of the supply voltage.

The mechanical coding of cards and connectors ensures however that short cards can be easily used in long slots. For example, a x1 card can be used in a x4, x8 or x16 slot.

Technical data

Connections and displays:

  • PCIe port:
    • PCIe 1.1 / "x1" connector
  • Serial port:
    • 2x galvanically isolated slots for interface modules
    • 12-pin header with 2mm spacing
  • Operating modes:
    • Different interface types possible
  • Maximum baud rate:
    • 3 Mbaud
  • Data format:
    • any format
  • Signals:
  • UART:
    • PI7C9X7952BFDE with 128-byte FIFO
  • Galvanic isolation:
    • Isolation voltage min. 1kV DC
    • between PC and serial ports
  • Supply voltage:
    • 3.3V DC, 12V DC
  • Current consumption:
    • typ. 200mA @ 3.3V
    • typ. 200mA @ 12V

Housing and other data:

  • Dimensions:
    • 95 x 120mm (W x H)
  • Enclosure rating:
    • IP00
  • Weight:
    • approx. 100g
  • Ambient temperature:
    • Storage: -40..+70°C
    • Operating: 0..+70°C
  • Permissible relative humidity:
    • 5..95% RH, non-condensing
  • Scope of delivery:
    • PCIe Card base board
    • slot plate
    • Quick start 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.