The AP Labs FS-5977 is a 5-slot, military conduction-cooled chassis for Vetronics applications.  It is capable of maintaining a sealed, dry air environment, while subject to typical Vetronic immersion and exposure to fluids environments.  The FS- 5977 meets the environmental requirements of MIL-E-4158, MIL-E-5400, and MIL-STD-2036.  This allows you to use it in environments with extreme temperatures, shock, and EMI requirements where reliability is important.

Mounting & Cooling
The FS-5977 is designed to be hard-mounted to a cold-plate. The base structure of the chassis matches the physical outline limits defined in the ARINC 404A^TM specification for a  ¹/₂ ATR, short box.  The enclosure side walls are strengthened with gussets, extending beyond the ¹/₂ ATR dimensions, supporting the hard-mounting cold-plate cooling approach.  This eliminates both the conventional shock tray and any required integral air cooling.  The FS-5977 provides a secure enclosure for conduction-cooled cards over a wide mounting surface temperature range.  The combined dissipation of PSU losses and 5 cards can be up to 220 W, which must be absorbed by the cold plate.  The environmental specifications defined on the reverse indicate the upper temperature limits for a given thermal load.