What is the NEBS GR-3028-CORE recommended operational temperature.
-25°F to +125°F (-32°C to +52°C)
-30°F to +110°F (-34°C to +43°C)
-20°F/-28° C minimum and up to a maximum of104 ° Fahrenheit/40° Celsius
Up To140 Degrees Fahrenheit /60 Degrees Celsius
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