SA15 - 8-Channel Binary I/O Adapter

The SA15 provides five binary inputs, five binary outputs and three binary bidirectional inputs/outputs. The supported logic level is 3.3 V up to 24 V. The output current for each channel is 500 mA (sinking), but the maximum overall current is 2.5 A.

SA-Adapters are small universal boards providing the physics for legacy serial I/O, fieldbus interfaces and other small I/O functions. One serial line is provided per adapter, which can be plugged directly to the CPU board as a mezzanine. Alternatively, theadapter can be connected to the front panel via ribbon cable. The SA concept allows to add additional I/O interfaces to many of MEN's CPU boards, enhancing flexibility with regard to the line transceivers and isolation requirements. SA-Adapters can be used on the majority of MEN's SBCs. Whether a specific SA-Adapter (or a mix of different SA-Adapters) fits on a specific CPU board is determined by a combination of mechanical, performance, FPGA and operating system criteria and needs to be verified for every board configuration requested.


  • 8 binary I/O channels
  • 15-pin HD-Sub connector
  • Optically isolated


Interface Type
Binary I/O
  • 5 outputs
  • 5 inputs
  • 3 bidirectional inputs/outputs
Peripheral Connections
Via front panel on a shielded 15-pin HD-Sub receptacle connector
  • As a piggy-back board directly on a CPU board
  • Via ribbon cable
Electrical Specifications
  • Isolation voltage: 500V AC
  • Supply voltage/power consumption: +5 V (4.85 V..5.25 V), tbd.
  • MTBF: 733 000 h @ 50°C (derived from MIL-HDBK-217F)
Mechanical Specifications
  • Dimensions: 32 mm x 42 mm
  • Weight: tbd.
Environmental Specifications
  • Temperature range (operation):
    • -40..+85°C
    • Industrial temperature range on request
    • Airflow: min. 10 m³/h
  • Temperature range (storage): -40..+85°C
  • Relative humidity (operation): max. 95% non-condensing
  • Relative humidity (storage): max. 95% non-condensing
  • Altitude: -300 m to + 3 000 m
  • Shock: 15 g/11 ms
  • Bump: 10 g/16 ms
  • Vibration (sinusoidal): 2 g/10..150 Hz
  • Conformal coating on request
PCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers
Tested according to EN 55022 (radio disturbance), IEC 61000-4-2 (ESD) and IEC 61000-4-4 (burst)