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Diamond Point International

MEN Mikro F403 - 3U cPCI/CompactPCI serial Binary I/O Card for Railways

16 bidirectional binary I/Os, -40 to +85°C Qualified


The G403 is a binary I/O CompactPCI Serial 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.

EN 50155 Compliance

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.

Safety Measures for Mobile Environments

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.


Digital I/O/Counter/Timers

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 Serial PICMG CPCI-S.0 Specification
Peripheral slot
P1 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®:
• +12V (9.5 to 15.5 V), 5 W max.
MechanicalDimensions: conforming to CompactPCI® specification for 3U boards
Front panel: 4 HP with ejector
Conformal CoatingConformal coating (standard)
SoftwareThe G403 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
Weightapprox. 285 g
VibrationEN 50155 (12.2.11) / EN 61373 category 1 class B body mounted
ShockEN 50155 (12.2.11) / EN 61373 category 1 class B body mounted
MTBFtbd h @ 40°C according to IEC/TR 62380 (RDF 2000)
• PCB manufactured with a flammability rating of 94V-0 by UL recognised manufacturers

Electrical Safety
• EN 62368-1 (former EN 60950-1)
• Insulation measurement: EN 50155 (
• Voltage withstand: EN 50155 (
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

Ordering Details

G403, 3U CompactPCI Serial (PICMG CPCI-S), 16x Binary Rail I/O, -40..+85°C, conformally coated