MEN F403

16 Bidirectional Digital I/O, -40 °C to +85 °C Qualified

Manufacturer: duagon MEN
MEN F403

The F403 is a binary I/O CompactPCI® board specially designed for railway applications. The card is used for input/output of digital signals with different voltage levels and ground references. It supports 16 bidirectional digital input/output channels, which are separated into four optically isolated groups.

Its voltage range from 14.4 VDC to 154 VDC and its current output of 1 A at 24 V complies with EN 50155, which makes the board ready for immediate use in train applications.

The four front connectors are implemented by using spring cage terminal blocks causing only low wiring outlay and supporting fast installation.

The binary railway I/O supports all safety measures necessary for mobile environments like trains including voltage and temperature supervision and readback of outputs.


I/Os16 binary signals
• 4 optically isolated groups
• 4 channels for each group

The following I/O configurations are possible:
• 16 inputs/outputs, or
• 16 inputs (no outputs), or
• 8 inputs/outputs

Individual edge-triggered interrupts

Input/output load on ground

High-side output switches

High output current: max. 1 A per channel at 24 V

Temperature and voltage supervision
InputsInput voltage range
• Limits continuous: 0 VDC to +138 VDC
• Limits (duration <1s): -0.7 VDC to +154 VDC

Input voltage of external supply voltage
• Can be configured individually for each group
• Nominal: +24 VDC to +110 VDC
• Limits continuous: +16.8 VDC to +138 VDC
• Limits (duration <1s): +14.4 VDC to +154 VDC

Switching threshold: 40% (+15%/-15%) of external supply voltage
OutputsOutput voltage range
• Limits continuous: 0 VDC to +138 VDC
• Limits (duration <1s): 0 VDC to +154 VDC

Switching time for output change: min. 400 µs (rise time) / min. 600 µs (fall time)
Connectors(s)4 spring cage terminal blocks



ExpansionCompliance with CompactPCI® Core Specification PICMG 2.0 R3.0
Peripheral slot
32-bit/33-MHz PCI Bus, or
32-bit/66-MHz PCI Bus
V(I/O): +3.3 V
J2 connector with geographical addressing for distinguishing boards in a system with several boards
ElectricalIsolation voltage:
• 1500 VAC between isolated side and digital side
• 1500 VAC between the channels

Supply voltage/power consumption from CompactPCI®:
• +5V (+5%/-5%), 130 mA typ.
MechanicalDimensions: conforming to CompactPCI® specification for 3U boards
Front panel: 4 HP with ejector
Conformal CoatingConformal coating (standard)
SoftwareThe F403 is supported by standard OS UART drivers
A demo application for Linux, Windows® and VxWorks® is available
TemperatureTemperature range (operation):
• -40..+85°C (qualified components)
• Airflow: 1.0 m/s
Temperature range (storage): -40..+85°C
HumidityRelative humidity range (operation): max. 95% non-condensing
Relative humidity range (storage): max. 95% non-condensing
Weight292 g
VibrationVibration (function): 1 m/s², 5 Hz to 150 Hz (EN 61373)
Vibration (lifetime): 7.9 m/s², 5 Hz to 150 Hz (EN 61373)
Shock50 m/s², 30 ms (EN 61373)
MTBF418 612 h @ 40°C according to IEC/TR 62380 (RDF 2000)
• PCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers

Electrical Safety
• Insulation measurement test according to EN 50155 (
• Voltage withstand test according to EN 50155 (
• Information technology equipment test according to EN 60950
EMCEN 55011 (radio disturbance)
IEC 61000-4-2 (ESD)
IEC 61000-4-3 (electromagnetic field immunity)
IEC 61000-4-4 (burst)
IEC 61000-4-5 (surge)
IEC 61000-4-6 (conducted disturbances)
Warranty2 Years


16 binary I/Os, -40..+85°C with qualified components, conformal coating
Recab UK
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