1/2 ATRS-905SIVR Abaco Systems Power Supply Unit

The Abaco Systems / Radstone ATR Series Chassis enable complete, industry standard ARINC format computer systems to be built with conduction cooled VMEbus modules. They provide the highest level of environmental protection combined with exceptional packing density and thermal performance.

In each of the Radstone ATR chassis the boards are cooled entirely by conduction to the chassis walls. No cooling air passes directly over the boards so completely protecting them from airborne contaminants. The heat is extracted from the chassis either by air blown through hollow sidewall heat exchangers or by conduction to a cold plate.

Abaco Systems / Radstone's level 4 (rugged conduction cooled) and level 5 (tactical) build standards are designed specifically for cooling by conduction. These board styles and each of the chassis in the range comply with the requirements of IEEE 1101.2-1992. The chassis will mechanically accept not only Radstone boards but also boards from any vendor meeting this international standard.

All VMEbus modules and power supply units are secured in the chassis with expanding screw driven wedge locks that ensure the mechanical integrity of the whole unit and minimize the risk of damage from shock and vibration. This design approach maximizes the heat the chassis can dissipate by providing thermal paths of the lowest possible impedance from the modules to the outside world.

The three sizes of ATR chassis, in both fan assisted and baseplate cooled versions accommodate up to 15, 8 and 5 boards respectively in form factors of 1 ATR Long, 1 ATR Short and 1/2 ATR Short.