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3U Half ATR


ATRs -Continuing to innovate in the design of ruggedized, modular, COTS systems platforms, Elma's full line of convection, conduction and liquid cooled ATR enclosures support a wide range of rugged airborne and mobile deployed applications.

Elma ATR enclosures offer a standardized, cost effective solution for VME, VME64x,cPCI, VXS, VPX, MicroTCA and Small Form Factor (SFF) based applications. Available in 1/4, 1/2, 3/4, 1 and 1 1/2 ATR tall long formats per ARINC 404A, ARINC 600 specifications, the modular design concept allows for wide range customization options without the cost and lead-time penalties associated with traditional construction techniques. The all-aluminum or aluminum-composite ATRs are designed to optimize weight while maximizing cooling and payload considerations.  Removable I/O panels allow for customization to exact application requirements and increased configurability. The ATR enclosures use electrostatic dust filters, honeycomb EMI filters and EMI gasketing techniques to insure compliance to MIL-STD-461E EMC requirements.  In addition the rugged design meets MIL-STD-810F (Shock), MIL-STD-167 (vibration).


  • COTS, convection cooled 1/2, 3/4, 1, or 1 1/2 ATR per ARINC 404A
  • IEEE 1101.10 compliant
  • Full range of 28VDC, military power supplies from 150 to 750 watts
  • Convection, conduction, and liquid cooled versions, IEEE 1101.12 compliant
  • VME, VME64X, VPX, VXS, cPCI, SFF or custom bus formats
  • Modular design allows for customization with minimum cost/lead time
  • Capacity for 5, 7, 12 or 15 slots 3U/6U x 160mm
  • Advanced airflow distribution through card cage
  • Aluminum or composite construction
  • AS9001 compliant

MIL-STD Exceeded

  • MIL-STD-810F: Environmental Test
  • MIL-STD-167: Vibration
  • MIL-STD-461E: EMI Shielding
  • MIL-STD-704E: Aircraft Power
  • MIL-STD-1275A: 28VDC, Vehicles
  • MIL-STD-5400: General Aerospace
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