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M27 - Mezzanine Card with 16 Digital Outputs, Low-Side Switching


The M27 is an M-Module with 16 digital low-side switching outputs 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.

  • M27 Product ImageM27 16 Digital Outputs
  • M27 Product Image

Main Features

  • 16 outputs 8 V to 36 V
  • 500 mA output current per channel
  • Thermal and short-circuit protection
  • Load on supply voltage
  • Optical isolation
M27 Product Image

Technical Data

Digital Output Characteristics
  • Load on supply voltage
  • Thermal and short circuit protection
  • Output Voltage: 8 V to 36 V; 10 µA max. (open)
  • Output Voltage: 2 V max.; 500 mA (closed)
  • Output Current: 500 mA max. (per channel)
  • Output Current: No derating
  • Digital I/O
    • 16x digital output, isolated, D-Sub, 25-pin, receptacle
    • 16x digital output, isolated, board to board
  • M-Module
    • 1x A08/D16/IDENT, board to board
Product Standard
M-Module: ANSI/VITA 12-1997 (S2012)
Electrical Specifications
  • Supply voltage
    • +5 V (-3%/+5%)
  • Power consumption
    • 0.5 W typ.
  • Isolation voltage:
    • 500 V DC between isolated side and digital side
    • Voltage between the connector shield and isolated ground is limited to 180 V using a varistor; AC coupling between connector shield and isolated ground through 47 nF capacitor
Mechanical Specifications
  • Dimensions standard: M-Module: (W) 149 mm, (D) 53 mm
  • Weight: 84 g
Environmental Specifications
  • Operating temperature
    • 0°C to +60°C
    • Industrial temperature range on request
    • Airflow: min. 10m³/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
PCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers
  • EN 55022 (radio disturbance)
  • IEC 61000-4-2 (ESD)
  • IEC 61000-4-4 (burst)
MTBF: 58 000h @ 50°C (derived from MIL-HDBK-217F)
Software Support
  • MEN Driver Interface System (MDIS for Windows, Linux, VxWorks, QNX)
  • For more information on supported operating system versions and drivers see Software.

Ordering Information

Standard M27 Models

16 digital low-side switching outputs, 0°C to +60°C

Miscellaneous Accessories

M-Module cable, 2 m, with 25-pin D-Sub plug/housing to pig tail


25 mounting screw sets to fix M-Modules on carrier boards (3 different screw types, 50 pieces each)



MDIS5 low-level driver sources (MEN) for M27, M28 and M81


MDIS5 System (and Device Driver) Package (MEN) for Linux. 
This software package includes most standard device drivers available from MEN.


MDIS5 Windows driver (MEN) for M27, M28 and M81


MDIS5 low-level driver sources (MEN) for M27, M28 and M81


MDIS5 System (and Device Driver) Package (MEN) for VxWorks. This software package includes most standard device drivers available from MEN.


MDIS5 low-level driver sources (MEN) for M27, M28 and M81


MDIS4 system (and device driver) package (MEN) for QNX, source code. This software package includes most standard device drivers available from MEN.

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