The Aitech E905 is a cold plate cooled 3-Slot 3U CompactPCI compliant rugged computer enclosure, specially designed for space applications. The power supplies provide standard CompactPCI bus voltages and additional outputs in +15VDC, -15VDC and a dedicated +12VDC to power external equipment.
Sturdy Mechanical Design
The design of the E905 has been optimised to provide maximum strength with minimum weight. Constructed of durable CNC machined 6061-T6 aluminum, the chassis is assembled using stainless steel fasteners to prevent corrosion. Often-used threads have self-locking stainless steel helicoils to withstand severe vibration and shock. All connectors are located on the front panel of the enclosure for easy access. All external surfaces, with the exception of the cold plate interface, are hard anodised coated for excellent corrosion resistance. The cold platemating surface is precision machined to ensure excellent heat transfer to the cold plate, and it is configurable to meet any customer-mounting requirements.
The E905 accommodates up to 3 standard 3U CompactPCI boards with up to 1.0-inch pitch (supports standard 0.8-inch pitch CompactPCI cards per VITA 30.1-2002).
The backplane is 3U CompactPCI compliant with J1 and J2 connectors in all slots. By eliminating an intermediate wire harness, all the signals are routed within the backplane to the corresponding front panel I/O connectors.
The chassis front panel is fully customizable to meet customer I/O connector requirements utilizing a PWB-based I/O transition module to eliminate the I/O-to-backplane intermediate wire harnesses.
The E905 is conduction cooled through the specially designed sidewalls. Heat is channeled from the power supplies and CompactPCI boards to the cold plate, resulting in a balance of overall chassis size and weight and an efficient thermal design. The chassis can dissipate more than 65 W of heat to a 45º C cold plate with 35 ºC ?T
to card’s heat management interface edges.