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Product short description:
  • 32 Isolated Digital Input Channels
  • Three Voltage Range Options
  • Programmable Interrupts
  • PCIe Bus Interface

Acromag QMC440 modules offer 32 optically isolated inputs to safely monitor a wide range of digital input signal voltage levels.

QMC440: Isolated Digital Input Description

QMC mezzanine modules plug into a carrier card to interface connected I/O and provide a variety of signal processing functions. Acromag QMC440 modules offer 32 optically isolated inputs to safely monitor a wide range of digital input signal voltage levels. A PCIe bus interface provides communication to the carrier and host computer.

Isolation protects your computer system from noise, transient signals, and field wiring faults. The inputs are grouped into four 8-channel ports. Ports are isolated from the logic and each other.

Change-of-state, high-to-low and low-to high interrupts are individually programmable for each channel. Debounce eliminates spurious interrupts from noise and switching transients for error-free edge detection.

Closed-loop monitoring of critical control signals is easily accomplished using the QMC440 in conjunction with Acromag’s QMC450 digital output module.

QMC modules adhere to the VITA 93 standard for small form factor (SFF) mezzanine modules. Two high-performance 80-pin connectors provide separate field I/O and PCIe bus host interfaces. Modules can deploy on a variety of carrier card platforms including PCIe expansion cards, 3U/6U Eurocards such as VPX and CompactPCI, VNX+ SFF cards, and many other architectures. The rugged design is well-suited for use in laboratory, industrial, defense, and aerospace applications.

QMC modules have a much smaller footprint than PMC/XMC modules. Single-width QMC modules are only 26 x 78.25mm which facilitates mixing and matching of multiple functions on a single carrier card for high-density I/O solutions. They are ideal for computing systems with strict size, weight, power, and cost (SWAP-C) limitations.

An Intelligent Platform Management Interface (IPMI) facilitates system management. The QMC EEPROM holds module information and sensor data that is accessible by a smart carrier card with an IPMC controller over an I2C interface.

QMC440: Isolated Digital Input Module Features and Benefits

  • 32 port-isolated input channels
  • Low, medium, and high voltage versions:
    • ±4 to ±18V input
    • ±16 to ±40V input
    • ±38 to ±60V input
  • Interrupt support for each channel
  • Programmable event interrupts (change-of-state, low-to-high, high-to-low)
  • Programmable debounce
  • Input hysteresis
  • Reverse polarity protection
  • Software configured (no jumpers/switches) allowing “on-the-fly” changes without removing modules
  • Pins are compatible with QMC450 output module for loopback monitoring
  • Loopback monitoring enables self-test and fault detection of open switches or shorts
  • Extended temperature range and support for conduction-cooled systems

Learn more about the new QMC VITA Small Form Factor and view all Acromag models >

Manuals

QMC440 User Manual (Log in to download the file)

Drawings & Diagrams

  • Compare

    QPCe7210 Series: PCI Express Carrier Cards for QMC Modules

    • Half-length PCIe Expansion Card
    • One QMC Module Site
    • Isolation Support
    • PCIe Bus Gen 3 x4 Interface
    QMC carrier cards provide an electrical and mechanical interface for QMC mezzanine modules.
    Select options This product has multiple variants. The options may be chosen on the product page

Additional information

Weight 1 oz
Dimensions 3.08 × 1.02 × 0.43 in
Part Number

QMC441-1111: ±4 to ±18V range, Air-cooled, QMC442-1111: ±4 to ±18V range, Conduction-cooled, QMC441-2111: ±16 to ±40V range, Air-cooled, QMC442-2111: ±16 to ±40V range, Conduction-cooled, QMC441-3111: ±38 to ±60V range, Air-cooled, QMC442-3111: ±38 to ±60V range, Conduction-cooled

  • Description

    QMC440: Isolated Digital Input Description

    QMC mezzanine modules plug into a carrier card to interface connected I/O and provide a variety of signal processing functions. Acromag QMC440 modules offer 32 optically isolated inputs to safely monitor a wide range of digital input signal voltage levels. A PCIe bus interface provides communication to the carrier and host computer.

    Isolation protects your computer system from noise, transient signals, and field wiring faults. The inputs are grouped into four 8-channel ports. Ports are isolated from the logic and each other.

    Change-of-state, high-to-low and low-to high interrupts are individually programmable for each channel. Debounce eliminates spurious interrupts from noise and switching transients for error-free edge detection.

    Closed-loop monitoring of critical control signals is easily accomplished using the QMC440 in conjunction with Acromag’s QMC450 digital output module.

    QMC modules adhere to the VITA 93 standard for small form factor (SFF) mezzanine modules. Two high-performance 80-pin connectors provide separate field I/O and PCIe bus host interfaces. Modules can deploy on a variety of carrier card platforms including PCIe expansion cards, 3U/6U Eurocards such as VPX and CompactPCI, VNX+ SFF cards, and many other architectures. The rugged design is well-suited for use in laboratory, industrial, defense, and aerospace applications.

    QMC modules have a much smaller footprint than PMC/XMC modules. Single-width QMC modules are only 26 x 78.25mm which facilitates mixing and matching of multiple functions on a single carrier card for high-density I/O solutions. They are ideal for computing systems with strict size, weight, power, and cost (SWAP-C) limitations.

    An Intelligent Platform Management Interface (IPMI) facilitates system management. The QMC EEPROM holds module information and sensor data that is accessible by a smart carrier card with an IPMC controller over an I2C interface.

    QMC440: Isolated Digital Input Module Features and Benefits

    • 32 port-isolated input channels
    • Low, medium, and high voltage versions:
      • ±4 to ±18V input
      • ±16 to ±40V input
      • ±38 to ±60V input
    • Interrupt support for each channel
    • Programmable event interrupts (change-of-state, low-to-high, high-to-low)
    • Programmable debounce
    • Input hysteresis
    • Reverse polarity protection
    • Software configured (no jumpers/switches) allowing “on-the-fly” changes without removing modules
    • Pins are compatible with QMC450 output module for loopback monitoring
    • Loopback monitoring enables self-test and fault detection of open switches or shorts
    • Extended temperature range and support for conduction-cooled systems

    Learn more about the new QMC VITA Small Form Factor and view all Acromag models >

  • Specs & Data Sheets

    Manuals

    QMC440 User Manual (Log in to download the file)

    Drawings & Diagrams

  • Accessories

    • Compare

      QPCe7210 Series: PCI Express Carrier Cards for QMC Modules

      • Half-length PCIe Expansion Card
      • One QMC Module Site
      • Isolation Support
      • PCIe Bus Gen 3 x4 Interface
      QMC carrier cards provide an electrical and mechanical interface for QMC mezzanine modules.
      Select options This product has multiple variants. The options may be chosen on the product page
  • Additional information

    Additional information

    Weight 1 oz
    Dimensions 3.08 × 1.02 × 0.43 in
    Part Number

    QMC441-1111: ±4 to ±18V range, Air-cooled, QMC442-1111: ±4 to ±18V range, Conduction-cooled, QMC441-2111: ±16 to ±40V range, Air-cooled, QMC442-2111: ±16 to ±40V range, Conduction-cooled, QMC441-3111: ±38 to ±60V range, Air-cooled, QMC442-3111: ±38 to ±60V range, Conduction-cooled