CompactPCI Conduction Cooling Rack for Extreme Environments

Robust, flexible and cost-effective

MEN Mikro Elektronik presents a completely new Rack concept with Conduction Cooling. This rack allows to use 3U CompactPCI boards - which by standard were designed for an operating temperature of -40 to +85°C with convection cooling - in a conduction-cooled environment. For this purpose MEN develops a special CCA frame for its single Europe CompactPCI boards which is specially adapted to the board in order to ensure appropriate cooling.

The first single-board computer MEN has adapted in this way is the F50C which is based on Freescale's MPC8548. The power-saving F14 to F18 boards (from Celeron M up to Core 2 Duo) of the 3U CompactPCI Intel Family are also suited for these frames.

The advantages of this Conduction Cooling concept are on the one hand the low costs, as no new design of a suitable board is necessary. Only the CCA frame is adapted to the respective board. On the other hand, this solution is extremely flexible. In addition, the whole surface of the 3U PCB can be populated, because the frame is built around the PCB and not on top of it. The housing's dimensions (20 cm x 35 cm x 14,5 cm) are especially adapted to the resulting 5HP height of the boards.

This extremely robust enclosure is compliant to IP65 and is hermetically sealed against impacts from outside, offers high vibration and shock resistance as well as special connector types such as MIL-C-38999. These connectors are alternatively wired to the front and/or the rear I/O of the boards inside the system. The system is designed for 40 Watt performance at -40 to +70°C. It is equipped with three CompactPCI slots for one CPU board with side card and one I/O board as well as a PSU slot with a H15 connector.