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Diamond Point International

Aitech E191 - Rugged 3U cPCI/CompactPCI Enclosure/Chassis

Rugged/Mil Two-Slot, 3U CompactPCI Chassis for Mobile Military Applications


Aitech’s E191 air-cooled enclosure is built to be rugged and reliable as well as lightweight and compact. EMI/RFI protected and environmentally sealed, the E191 is capable of withstanding extreme environmental conditions of altitude, temperature, moisture, shock, vibration, EMI and chemical exposure, making it ideal for use in military and aerospace environments.

Mechanical Design

The E191 is constructed of durable extruded 6063-T6 aluminum. Fasteners are stainless steel and removable cover threads have self-locking stainless steel helicoils to withstand severe vibration and shock. All I/O connectors are located on the front panel of the enclosure for easy access.

Board Capacity

The E191 accommodates 2 standard conductioncooled 3U CompactPCI boards per VITA 30.1-2002 with 0.8 inch pitch, and a 3U conduction cooled power supply.

CompactPCI Backplane

The backplane is 3U compact PCI compliant with J1 and J2 connectors in all slots 28V DC input power is routed to the power supply section of the backplane via a separate shielded harness to prevent radiated or conducted EMI.


Enclosure Specifications

GeneralRugged Chassis for Military and other Harsh Environment Applications
CapacityThe E191 accommodates 2 standard conduction cooled 3U CompactPCI boards per VITA 30.1-2002 with 0.8 inch pitch, and a 3U conduction cooled
power supply.
BackplaneThe backplane is 3U compact PCI compliant with J1 and J2 connectors in all slots
PSUVoltage Range (DC): 18V to 36V
Nominal Input Voltage: 24V to 28V
Reverse Polarity Protected: 0 to 40VDC
Transient Suppression: Meets requirements of:
– MIL-STD-1275A, except ignition, cranking, and single fault conditions.
– MIL-STD-704D
Output Power: +5v @ 18A, +3.3V @ 11A, +12V @ 1A, -12V @ 1A
Total Output Power: 140 W
CoolingNo fans - cooling by convection cooling
IP/NMEAThe E191 is sealed against intrusion of external environment contaminants found in military applications, including: humidity, sand and dust, and contaminant splash. Enclosure mating surfaces are sealed with conductive gaskets. Connectors and other accessories are protected
also in the same manner.


ExpansionTwo (2) Standard ANSI/VITA 30.1-2002 Conduction-cooled 3U CompactPCI Modules
ElectricalSee PSU section above

Power Dissipation Capability: 20W at 50°C still air, natural convection, sea level, maintaining card edge at less than 85°C. Higher power possible through mounting feet or moving air (consult factory to discuss installation and power/thermal design).
MechanicalStandard E191 mounting footprint: 5.59” x 5.84” (W x D)
Maximum external dimensions: 5.59” x 10.11” x 3.45” (W x D x H)
TemperatureOperating Temperature:
• Series 200 level Enclosure: -40C to +55C
• Series 400 level Enclosure: -55C to +55C
Non-operating Temperature
• Series 200 level Enclosure: -50C to +85C
• Series 400 level Enclosure: -62C to +100C
Humidity5%-95% relative humidity with condensation
WeightLess than 4.5 lbs (Conduction-cooled boards not included)
AltitudeOperating: Up to 22,000 ft
Storage: Up to 60,000 ft
VibrationSine* Cycling of 10 g (max) at 5 - 500 Hz
Random* 0.1g2/Hz at 20 - 2000 Hz
Transportation Loose cargo vibration
* Mounted on Aitech mounting tray
ShockShock* - Single half-sine shocks:
40 g peak, 3 axes, 11 ms duration
* Mounted on Aitech mounting tray
EMCPer MIL-STD-461D, part IV with line filter:
• CS101 (20Hz – 50KHz)
• CE102 (10Khz – 10 MHz)
• CS114 (10KHz – 400 MHz)
• RE102 (10KHz – 10 GHz)
Warranty1 Year

Ordering Details

BoardRefer to datasheet for ordering part number scheme