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M32 - Mezzanine Card with 16 Binary Source Inputs


The M32 is an M-Module with 16 digital high-side switch inputs that connect or disconnect a load to a supply voltage. It is designed for industrial automation, medical computers, in-vehicle computers, and embedded computers in transportation.

  • M32 Product ImageM32 16 Digital (Binary) Inputs
  • M32 Product Image

Main Features

  • 16 inputs 5 V to 180 V<br />Constant current inputs<br />Debouncing circuit<br />Interrupt generation<br />Load on supply voltage<br />Optical isolation<br />-40 °C to +85 °C
M32 Product Image

Technical Data

Digital Inputs
  • Input load on supply voltage
  • FET constant current source inputs
  • Input voltage ranges:
    • 5 V to 40 V; 2.5 mA to 3.5 mA (high level)
    • 5 V to 180 V (M-Module version for extended temperature range)
    • 0 V to 1 V; 0 mA to 0.2 mA (low level)
  • Switching time for input change: 3 µs typ.
Debouncing Time
14 ms (defined by PLD programming)
  • Debouncing circuit
  • Interrupt generation with maskable interrupt
Peripheral Connections
  • Via front panel on a shielded 25-pin D-Sub receptacle connector
  • Via carrier board (rear I/O)
M-Module Characteristics
Electrical Specifications
  • Supply voltage
    • +5 V (4.85 V to 5.25 V)
  • Power consumption
    • 50 mA typ.
  • Isolation voltage
    • 500 V DC between isolated side and digital side
    • Voltage between the connector shield and isolated ground is limited to 180V using a varistor; AC coupling between connector shield and isolated ground through 47nF capacitor
Mechanical Specifications
  • Dimensions: conforming to M-Module Standard
  • Weight: 67.5 g
Environmental Specifications
  • Temperature range (operation)
    • 0°C to +60°C, or
    • -40°C to +85°C
    • Airflow: min. 10m³/h
  • Temperature range (storage): -40°C to +85°C
  • Relative humidity range (operation): max. 95% non-condensing
  • Relative humidity range (storage): max. 95% non-condensing
  • Altitude: -300 m to +3000 m
  • Shock: 15 g / 11 ms
  • Bump: 10 g / 16 ms
  • Vibration (sinusoidal): 2 g / 10 Hz to 150 Hz
MTBF: 300 000 h @ 50°C (derived from MIL-HDBK-217F)
Flammability (PCBs)
  • UL 94 V-0
Tested according to EN 55022 (radio disturbance), IEC 61000-4-2 (ESD) and IEC 61000-4-4 (burst)
Software Support
  • MEN Driver Interface System (MDIS for Windows, Linux, VxWorks, QNX, OS-9)
  • For more information on supported operating system versions and drivers see Software.

Ordering Information

Standard M32 Models

16 binary source inputs, 0..+60°C

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