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Diamond Point International

MEN Mikro A203N - 6U VME64 M-Module Carrier Board

4 M-Module Slots, -40 to +85°C Qualified


The A203N is an M-Module carrier board for universal I/O on the VMEbus, allowing high flexibility in applications such as process and motion control, measurement and instrumentation, communication or special-purpose tasks. The M-Modules are screwed tightly on the carrier board, and the board needs only one slot on the VMEbus.

The A203N is a VME64 slave card and supports four D16/D32 M-Modules with the signals either at the front or via rear I/O. An interrupt controller handles the M-Modules individually.

For rugged requirements the A203N is equipped with a stiffener front panel, allows a standard -40 to +85°C operation temperature and is prepared for conformal coating.

Additionally, the A203N is prepared for DMA transfer support.



FeaturesMezzanine Slots
• Four M-Module slots
• Compliant with M-Module standard
• Characteristics: D08, D16, D32, A08, A24, INTA, INTC, TRIGO, TRIGI
• Prepared for DMA16, DMA32
• Prepared for D16 burst, D32 burst

Interrupt Controller
• Interrupt handling individually for each M-Module
ConnectionsVia front panel
Via 96-pin P2 connector (rear I/O)


• Only one slot required on the VMEbus
• Slave: D08(EO):D16:D32:A16:A24:A32;BLT, prepared for D16BLT and D32BLT
• Interrupter: D08(O):I(7-1)
ElectricalSupply voltage/power consumption: +5V (-3%/+5%), typ. 140mA (without M-Modules)
MechanicalDimensions: standard double Eurocard, 233.3mm x 160mm
Front panel: stiffener panel, aluminum with 2 handles, cut-outs for front connectors of 4 M-Modules
Conformal CoatingConformal coating on request
SoftwareM-Module drivers for Windows®, VxWorks®, Linux, QNX®, OS-9® as supported
TemperatureTemperature range (operation):
• -40..+85°C
• Airflow: min. 10m³/h
Temperature range (storage): -40..+85°C
HumidityRelative humidity (operation): max. 95% non-condensing
Relative humidity (storage): max. 95% non-condensing
WeightWeight: 350g
Altitude-300 m to +3000 m
Vibration(sinusoidal): 2g/10..150Hz
ShockShock: 15g/11ms
Bump: 10g/16ms
MTBF274,000h @ 40°C (derived from MIL-HDBK-217F)
Safety/CertificationPCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers
EMCTested according to EN 55022 (radio disturbance), IEC1000-4-2 (ESD) and IEC1000-4-4 (burst)
Warranty2 Years

Ordering Details

A23N, M-Module carrier board, -40...+85°C with qualified components
Front-panel cover for M-Module cut-outs at front panels, snap-in, 10 pcs

25 mounting screw sets to fix M-Modules on carrier boards