Aitech E902

Introduction

Aitech’s E902 cold plate cooled enclosure is built to be rugged and reliable as well as lightweight and compact. EMI/RFI protected and environmentally-sealed, the E902 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 E902 chassis utilizes a bonded and fastened construction technique and is made of durable CNC machined 6061-T6 aluminum. Stepped corner joints enhance the structural and EMI integrity. All fasteners are stainless steel and removable panel threaded holes have self-locking stainless steel helicoils to withstand severe vibration and shock.

Board Capacity

The E902 accommodates 2 conduction-cooled 3U CompactPCI board per VITA 30.1-2002 with 0.8 inch pitch, and a 3U conduction-cooled power supply.

CompactPCI Backplane

The backplane is 3U CompactPCI compliant with J1 and J2 connectors in all slots. DC input power is routed to the power supply via a separate screened harness so as to prevent radiated or conducted EMI.

Transition Module

Some I/O signals from both CompactPCI slots are routed via the transition module to the front panel connectors. Any change of cards may require the change of transition module to accommodate different Dsub connectors.

Access Panels

Removable front and rear access panels features a flexible configuration of user-defined Dsub connectors, one for input power and the other two connectors are for I/O. All connectors are located on the rear access panel.

Thermally Efficient

The conduction-cooled, VITA30.1-2002 compliant boards are environmentally sealed within the chassis. The CompactPCI boards are positively clamped to the sidewalls of the chassis providing a direct thermal path to the base plate. The power supply’s DC-to-DC converters come in direct contact with the base plate.

Electro-Magnetic Compatibility

Aitech's E902 minimizes radiated emissions and susceptibility interference with these features:

• Bolted corners with conductive surfaces provide 2.5 milliohms or less of DC resistance
• Conductive O-ring gaskets provide environmental and electro-magnetic sealing
• Separately shielded input power assembly
• Ferrite suppression on the input power assembly eliminate conducted emissions

Environmental Sealing

The E902 is sealed against intrusion of external environment contaminants found in military applications, including: humidity, sand and dust, and contaminant splash. Conductive EMI gaskets are installed around each of the front panel connector. Enclosure mating surfaces are sealed with silicon rubber O-ring seals.

Corrosion Resistant Finish

External surfaces of the E902 are finished with either epoxy paint or chemical conversion coated for excellent corrosion resistance. The finish is available in standard military colors with nonstandard colors available upon request. Internal surfaces are chemical conversion coated for corrosion resistance and electrical conductivity. All finishes and components are fungus resistant.

For more details, refer to datasheet.