Environmental Requirements; Table 2-1 Environmental Requirements - SMART Embedded Computing RTM-ATCA-747x-10G Series Installation And Use Manual

Hardware Preparation and Installation
2.2.1

Environmental Requirements

The environmental conditions must be tested and proven in the shelf configuration used.
The conditions refer to the surrounding of the blade within the user environment.
The environmental requirements of the blade may be further limited down due to
installed accessories, such as hard disks or PMC modules, with more restrictive
environmental requirements.
Operating temperatures refer to the temperature of the air circulating around the
blade and not to the actual component temperature.
Blade Damage–Blade Surface
High humidity and condensation on the blade surface causes short circuits.
Do not operate the blade outside the specified environmental limits. Make sure the
blade is completely dry and there is no moisture on any surface before applying
power.
Blade Overheating and Blade Damage
Operating the blade without forced air cooling may lead to blade overheating and
thus blade damage.
When operating the blade, make sure that forced air cooling is available in the shelf.
Table 2-1
Requirement Operating
Temperature
Temp. Change
28
Environmental Requirements
Normal Operation: +5°C (41°F) to
+40°C (104°F) according to Telcordia
GR-63-CORE (NEBS) and ETSI EN
300 019-1-3, Class 3.1
Exceptional Operation: -5°C (23°F) to
+55°C (131°F) according to Telcordia
GR-63-CORE (NEBS)
Note: this exceeds ETSI EN 300 019-
1-3, Class 3.1E requirements (-5°C to
+45°C)
±0.25°C/min according to Telcordia
GR-63-CORE
RTM-ATCA-747x-10G Installation and Use (6806800S80F)
Hardware Preparation and Installation
NOTICE
Non-Operating (Storage and
Transport)
-40°C (-40°F) to +70°C (158°F) according
Telcordia GR-63-CORE (NEBS) and
ETSI EN 300 019-1-2, Class 2.3
Note: This exceeds ETSI EN 300 019-1-
1, Class 1.2 requirements (storage from -
25°C to +55°C
Note: This may be further limited by
installed accessories
±0.25°C/min