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Wide Temperature Assurance Service (WiTAS) 0
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Wide Temperature Embedded Computing

Applications of embedded computing systems continue to improve the quality and convenience of our lives. As the global population
increases, there are greater demands on resources, and the need for automation and computing capability in remote regions will grow. To
address a demand for computers that operate in extreme environments, platforms must follow design methodologies for wide temperature
range use. In addition, testing and product qualification must follow more stringent criteria to assure continuous operation. As the core of
any embedded system, the CPU board plays perhaps the most critical role and, therefore, requires careful design and validation for wide
temperature capabilities.

AAEON has been designing and manufacturing quality embedding products for over two decades. Our accumulated experience in all aspects
of the embedded electronics market puts us in a strong position to develop wide temperature CPU boards and systems.

AAEON’s WiTAS (Wide Temperature Assurance Service) program produces boards in two temperature range categories:
-20°C to 70°C (-4°F ~ 158°F) = WiTAS 1 -40ºC 85ºC OK
-40°C to 85°C (-40°F ~ 185°F) = WiTAS 2
Processes for WiTAS Production
Assembled CPU Power-On Wide Temperature Full Function Test WiTAS 2 Verified
Board Function Test Screen Test Products
WiTAS 1 Production (-40ºC to 85ºC)

-20ºC 70ºC OK

Assembled CPU Power-On Wide Temperature Full Function Test WiTAS 1 Verified
Board Function Test Screen Test Products
(-20ºC to 70ºC)
WiTAS 2 Production

OK
-40ºC 85ºC

Assembled CPU Power-On Wide Temperature Full Function Test WiTAS 2 Verified
Board Function Test Screen Test Products
(-40ºC to 85ºC)
Boards that pass -20°C to 70°C (-4°F ~ 158°F) thermal tests are given a WiTAS 1 designation, and boards that endure -40°C to 85°C
(-40°F ~ 185°F) tests are assigned a WiTAS 2 designation, as part of AAEON’s special service assurance of wide temperature durability and
OK
-20ºC 70ºC
reliability. This, in conjunction with the use of durable components throughout the duration of testing, allows AAEON to enhance the longevity
of its boards and systems.
Assembled CPU Power-On Wide Temperature Full Function Test WiTAS 1 Verified
Application Board Function Test (-20ºC to 70ºC) Products
Screen Test
Applications for WiTAS CPU boards can be found in
a range of industries and markets:

• Transportation: Trains, Ships, Airplanes and Traffic Surveillance Systems
• Factory Automation: Power Stations, Steel Manufacturing
• Military: Field Electronic Devices, Controllers
• Energy: Windmill Controllers, Solar Energy Controllers
• Environmental: Climate, Water, Air Quality
• Anti-dust, Fanless Applications: Medical, Chemical and
Pharmaceutical Factories

Note: All specifications are subject to change without notice. www.aaeon.com 00-18