4 Isolated DIO with Change-of-State Mini-PCIe Module

4 Isolated DIO with Change-of-State Mini-PCIe Module




The mPCIe-II-4 consists of a type F1 PCI Express Mini Card (mPCIe) interface board that connects to a Mobile-ITX-sized, DB-37M Isolation Module via an included 9” cable. That module is designed to be easily panel-mounted in any application environment. It uses the high speed PCI Express bus to transfer digital data to and from the card. The digital I/O is compatible with 8255 PPI chips making it easy to program. This allows for simple and trouble-free migration from other ACCES PCI and PCI Express digital I/O cards, but also provides for advanced features enabled by the onboard FPGA logic.

The mPCIe-II family of cards are well suited to complex environments, mitigating otherwise challenging ground-loops, high-common-mode, and transient voltage spikes common in electrically-noisy industrial or factory locations. Individual channel-to-channel isolation allows every channel to be physically and electrically separated from the others. The broad voltage compatibility allows use in a wide range of applications.

Ordering Info

  • mPCIe-II-4 – 4 Isolated DIO with Change-of-State Mini-PCIe Module


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  • PCI Express Mini Card: Type F1 “Full Length” V1.2
  • Isolated Inputs
    • Number: 16, 8 or 4
    • Type: Non-polarized, optically isolated from each other and from the computer (CMOS compatible)
    • Voltage: 3 to 31 DC or AC RMS (40 to 10000Hz)
    • Isolation: 500V channel-to-ground and channel-to-channel
    • Resistance: 1.8KΩ in series with opto-coupler
    • Filter Response
      • Rise-time: 4.7 ms
      • Fall-time: 4.7 ms
    • Non-Filter Response
      • Rise-time: 10 μs
      • Fall-time: 30 μs
  • Digital I/O Lines
    • Number: 4
    • Type: High Side Power MOSFET Switch. Protected against short-circuit, over-temp, ESD; drives inductive loads.
    • Voltage Range: 5-34VDC recommended (customer supplied) for continuous use, 40VDC absolute maximum
    • Current Rating 2A maximum
    • Turn On time: 90μsec
    • Turn Off time: 110μsec
    • Digital Inputs (4 or 2 LVTTL)
      • Logic High: 2.0V to VCCIO (3.3VDC, 5VDC tolerant)
      • Logic Low 0V to 0.8V
    • Digital Outputs (4 or 2 LVTTL)
      • Logic High: 2.0V (min) 24mA source
      • Logic Low: 0.55V (max) 24mA sink
  • Environmental
    • Operating: 0°C to 70°C (order -T option for industrial temperature -40°C to 85°C)
    • Storage: -65°C to 150°C
    • Humidity: 5% to 95%, non-condensing
    • Power required: +3.3VDC @ 360ma (typical)
  • Physical
    • mPCIe card characteristics
    • Weight: 6.2 grams
    • Size
      • Length: 50.95mm (2.006″)
      • Width: 30.00mm (1.181″)
    • I/O connector
      • On-card: Molex 501190-4017 40-pin latching
      • Mating: Molex 501189-4010
  • Isolation board characteristics
    • Weight: 38.2 grams, (+11.2 grams for the 9″ cable)
    • Size (Mobile-ITX sized)
      • Length: (2.952″)
      • Width: (1.1.772″)
    • I/O connector
      • On board: Male, D-Sub Miniature, 37-pin
      • Mating: Female, D-Sub Miniature, 37-pin

Warranty & Service Information for ACCES I/O Products (United States)

Assured Systems are proud to be an official partner of ACCES I/O providing a 2 year warranty on all products supplied within the USA, including products that have been customized. Extension options are also available for your convenience. Get the reliability you need with products and services from Assured Systems.