M82 - Mezzanine Card with 16 Digital 20 kHz Inputs

The mezzanine card M82 is a 16-channel fully isolated input M-Module with latching and comparator capabilities for industrial applications. A current limit for each input guarantees an input voltage range of 0 V to 40 V. Each input signal edge generates a maskable interrupt for each channel. The voltage-sensitive inputs have a hysteresis function.

Typical I/O applications include automated test equipment, simulators and PLC-like applications with different voltage requirements.

The M82 is software-compatible with the M31.

The M82 is based on the M-Module ANSI mezzanine standard. It can be used as an I/O extension in any type of bus system, i.e. CPCI, VME or on any type of stand-alone SBC. Appropriate M-Module carrier cards in 3U, 6U and other formats are available from MEN or other manufacturers.

Features

  • 16 fast 20 kHz inputs
  • 0 V to 40 V input voltage
  • Constant current inputs
  • Hysteresis function
  • Interrupt generation
  • 500 V DC isolation from the system
  • 100 V DC isolation between the channels
  • -40 °C to +85 °C

Specifications

Digital Input Characteristics
  • FET constant current source inputs: 5.6 mA typ.
  • Input voltages and currents:
    • Input voltage: 0 V to 40 V
    • Switching voltage 0: 5.5 V ±0.5 V @ 3 mA min./ 3.3 mA typ./ 4 mA max.
    • Switching voltage 1: 9.5 V ±0.5 V @ 4 mA min./ 5.6 mA typ./ 10 mA max.
    • Switching voltage 2: 15.2 V ±0.5 V @ 4 mA min./ 5.6 mA typ./ 10 mA max.
  • Switching Times
    • Rise time: 4.2 µs typ.
    • Fall time: 32 µs typ.
  • Hysteresis function
  • Interrupt generation with maskable interrupt
Interfaces
  • Digital I/O
    • 16x digital input, isolated, HD-Sub, 44-pin, receptacle
  • M-Module
    • 1x A08/D16/INTA/INTB/IDENT, board to board
Product Standard
M-Module: ANSI/VITA 12-1997 (S2012)
Electrical Specifications
  • Supply voltage
    • +5 V (-3%/+5%)
  • Power consumption
    • 1.1 W typ.
  • Isolation voltage:
    • 500 V DC between isolated side and digital side
    • All channels are optically isolated (100 V between the channels)
Mechanical Specifications
  • Dimensions standard: M-Module: (W) 149 mm, (D) 53 mm
  • Weight: 72 g
Environmental Specifications
  • Operating temperature
    • 0°C to +60°C or -40°C to +85°C
    • Airflow: min. 10 m³/h
  • Storage temperature: -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: 15g/11ms
  • Bump: 10g/16ms
  • Vibration (sinusoidal): 2g/10 Hz to 150 Hz
  • Conformal coating on request
Safety
PCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers
EMC
  • EN 55022 (radio disturbance)
  • IEC 61000-4-2 (ESD)
  • IEC 61000-4-4 (burst)
Reliability
MTBF: 370 000h @ 40°C (derived from MIL-HDBK-217F)
Software Support

Downloads